drivers/gpu/drm/meson/meson_crtc.c | 10 +-- drivers/gpu/drm/meson/meson_drv.c | 71 ++++++++++------------ drivers/gpu/drm/meson/meson_drv.h | 2 +- drivers/gpu/drm/meson/meson_encoder_cvbs.c | 8 +-- drivers/gpu/drm/meson/meson_overlay.c | 8 +-- drivers/gpu/drm/meson/meson_plane.c | 10 +-- 6 files changed, 51 insertions(+), 58 deletions(-)
Switch to a managed drm device to cleanup some error handling
and make future work easier.
Fix dereference of NULL in meson_drv_bind_master by removing
drm_dev_put(drm) before meson_encoder_*_remove and
component_unbind_all where drm is dereferenced.
Co-developed by Linux Verification Center (linuxtesting.org).
Cc: stable@vger.kernel.org # 6.5
Fixes: 6a044642988b ("drm/meson: fix unbind path if HDMI fails to bind")
Signed-off-by: Anastasia Belova <abelova@astralinux.ru>
---
v2: fix commit message and add Cc: stable@vger.kernel.org
drivers/gpu/drm/meson/meson_crtc.c | 10 +--
drivers/gpu/drm/meson/meson_drv.c | 71 ++++++++++------------
drivers/gpu/drm/meson/meson_drv.h | 2 +-
drivers/gpu/drm/meson/meson_encoder_cvbs.c | 8 +--
drivers/gpu/drm/meson/meson_overlay.c | 8 +--
drivers/gpu/drm/meson/meson_plane.c | 10 +--
6 files changed, 51 insertions(+), 58 deletions(-)
diff --git a/drivers/gpu/drm/meson/meson_crtc.c b/drivers/gpu/drm/meson/meson_crtc.c
index d70616da8ce2..e1c0bf3baeea 100644
--- a/drivers/gpu/drm/meson/meson_crtc.c
+++ b/drivers/gpu/drm/meson/meson_crtc.c
@@ -662,13 +662,13 @@ void meson_crtc_irq(struct meson_drm *priv)
drm_crtc_handle_vblank(priv->crtc);
- spin_lock_irqsave(&priv->drm->event_lock, flags);
+ spin_lock_irqsave(&priv->drm.event_lock, flags);
if (meson_crtc->event) {
drm_crtc_send_vblank_event(priv->crtc, meson_crtc->event);
drm_crtc_vblank_put(priv->crtc);
meson_crtc->event = NULL;
}
- spin_unlock_irqrestore(&priv->drm->event_lock, flags);
+ spin_unlock_irqrestore(&priv->drm.event_lock, flags);
}
int meson_crtc_create(struct meson_drm *priv)
@@ -677,18 +677,18 @@ int meson_crtc_create(struct meson_drm *priv)
struct drm_crtc *crtc;
int ret;
- meson_crtc = devm_kzalloc(priv->drm->dev, sizeof(*meson_crtc),
+ meson_crtc = devm_kzalloc(priv->drm.dev, sizeof(*meson_crtc),
GFP_KERNEL);
if (!meson_crtc)
return -ENOMEM;
meson_crtc->priv = priv;
crtc = &meson_crtc->base;
- ret = drm_crtc_init_with_planes(priv->drm, crtc,
+ ret = drm_crtc_init_with_planes(&priv->drm, crtc,
priv->primary_plane, NULL,
&meson_crtc_funcs, "meson_crtc");
if (ret) {
- dev_err(priv->drm->dev, "Failed to init CRTC\n");
+ dev_err(priv->drm.dev, "Failed to init CRTC\n");
return ret;
}
diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c
index 4bd0baa2a4f5..2e7c2e7c7b82 100644
--- a/drivers/gpu/drm/meson/meson_drv.c
+++ b/drivers/gpu/drm/meson/meson_drv.c
@@ -182,7 +182,6 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
struct platform_device *pdev = to_platform_device(dev);
const struct meson_drm_match_data *match;
struct meson_drm *priv;
- struct drm_device *drm;
struct resource *res;
void __iomem *regs;
int ret, i;
@@ -197,17 +196,13 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
if (!match)
return -ENODEV;
- drm = drm_dev_alloc(&meson_driver, dev);
- if (IS_ERR(drm))
- return PTR_ERR(drm);
+ priv = devm_drm_dev_alloc(dev, &meson_driver,
+ struct meson_drm, drm);
- priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
- if (!priv) {
- ret = -ENOMEM;
- goto free_drm;
- }
- drm->dev_private = priv;
- priv->drm = drm;
+ if (IS_ERR(priv))
+ return PTR_ERR(priv);
+
+ priv->drm.dev_private = priv;
priv->dev = dev;
priv->compat = match->compat;
priv->afbcd.ops = match->afbcd_ops;
@@ -215,7 +210,7 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
regs = devm_platform_ioremap_resource_byname(pdev, "vpu");
if (IS_ERR(regs)) {
ret = PTR_ERR(regs);
- goto free_drm;
+ goto remove_encoders;
}
priv->io_base = regs;
@@ -223,13 +218,13 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "hhi");
if (!res) {
ret = -EINVAL;
- goto free_drm;
+ goto remove_encoders;
}
/* Simply ioremap since it may be a shared register zone */
regs = devm_ioremap(dev, res->start, resource_size(res));
if (!regs) {
ret = -EADDRNOTAVAIL;
- goto free_drm;
+ goto remove_encoders;
}
priv->hhi = devm_regmap_init_mmio(dev, regs,
@@ -237,18 +232,18 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
if (IS_ERR(priv->hhi)) {
dev_err(&pdev->dev, "Couldn't create the HHI regmap\n");
ret = PTR_ERR(priv->hhi);
- goto free_drm;
+ goto remove_encoders;
}
priv->canvas = meson_canvas_get(dev);
if (IS_ERR(priv->canvas)) {
ret = PTR_ERR(priv->canvas);
- goto free_drm;
+ goto remove_encoders;
}
ret = meson_canvas_alloc(priv->canvas, &priv->canvas_id_osd1);
if (ret)
- goto free_drm;
+ goto remove_encoders;
ret = meson_canvas_alloc(priv->canvas, &priv->canvas_id_vd1_0);
if (ret)
goto free_canvas_osd1;
@@ -261,7 +256,7 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
priv->vsync_irq = platform_get_irq(pdev, 0);
- ret = drm_vblank_init(drm, 1);
+ ret = drm_vblank_init(&priv->drm, 1);
if (ret)
goto free_canvas_vd1_2;
@@ -284,10 +279,10 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
ret = drmm_mode_config_init(drm);
if (ret)
goto free_canvas_vd1_2;
- drm->mode_config.max_width = 3840;
- drm->mode_config.max_height = 2160;
- drm->mode_config.funcs = &meson_mode_config_funcs;
- drm->mode_config.helper_private = &meson_mode_config_helpers;
+ priv->drm.mode_config.max_width = 3840;
+ priv->drm.mode_config.max_height = 2160;
+ priv->drm.mode_config.funcs = &meson_mode_config_funcs;
+ priv->drm.mode_config.helper_private = &meson_mode_config_helpers;
/* Hardware Initialization */
@@ -308,9 +303,9 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
goto exit_afbcd;
if (has_components) {
- ret = component_bind_all(dev, drm);
+ ret = component_bind_all(dev, &priv->drm);
if (ret) {
- dev_err(drm->dev, "Couldn't bind all components\n");
+ dev_err(priv->drm.dev, "Couldn't bind all components\n");
/* Do not try to unbind */
has_components = false;
goto exit_afbcd;
@@ -339,26 +334,26 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
if (ret)
goto exit_afbcd;
- ret = request_irq(priv->vsync_irq, meson_irq, 0, drm->driver->name, drm);
+ ret = request_irq(priv->vsync_irq, meson_irq, 0, priv->drm.driver->name, &priv->drm);
if (ret)
goto exit_afbcd;
- drm_mode_config_reset(drm);
+ drm_mode_config_reset(&priv->drm);
- drm_kms_helper_poll_init(drm);
+ drm_kms_helper_poll_init(&priv->drm);
platform_set_drvdata(pdev, priv);
- ret = drm_dev_register(drm, 0);
+ ret = drm_dev_register(&priv->drm, 0);
if (ret)
goto uninstall_irq;
- drm_fbdev_dma_setup(drm, 32);
+ drm_fbdev_dma_setup(&priv->drm, 32);
return 0;
uninstall_irq:
- free_irq(priv->vsync_irq, drm);
+ free_irq(priv->vsync_irq, &priv->drm);
exit_afbcd:
if (priv->afbcd.ops)
priv->afbcd.ops->exit(priv);
@@ -370,15 +365,14 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
meson_canvas_free(priv->canvas, priv->canvas_id_vd1_0);
free_canvas_osd1:
meson_canvas_free(priv->canvas, priv->canvas_id_osd1);
-free_drm:
- drm_dev_put(drm);
+remove_encoders:
meson_encoder_dsi_remove(priv);
meson_encoder_hdmi_remove(priv);
meson_encoder_cvbs_remove(priv);
if (has_components)
- component_unbind_all(dev, drm);
+ component_unbind_all(dev, &priv->drm);
return ret;
}
@@ -391,7 +385,7 @@ static int meson_drv_bind(struct device *dev)
static void meson_drv_unbind(struct device *dev)
{
struct meson_drm *priv = dev_get_drvdata(dev);
- struct drm_device *drm = priv->drm;
+ struct drm_device *drm = &priv->drm;
if (priv->canvas) {
meson_canvas_free(priv->canvas, priv->canvas_id_osd1);
@@ -404,7 +398,6 @@ static void meson_drv_unbind(struct device *dev)
drm_kms_helper_poll_fini(drm);
drm_atomic_helper_shutdown(drm);
free_irq(priv->vsync_irq, drm);
- drm_dev_put(drm);
meson_encoder_dsi_remove(priv);
meson_encoder_hdmi_remove(priv);
@@ -428,7 +421,7 @@ static int __maybe_unused meson_drv_pm_suspend(struct device *dev)
if (!priv)
return 0;
- return drm_mode_config_helper_suspend(priv->drm);
+ return drm_mode_config_helper_suspend(&priv->drm);
}
static int __maybe_unused meson_drv_pm_resume(struct device *dev)
@@ -445,7 +438,7 @@ static int __maybe_unused meson_drv_pm_resume(struct device *dev)
if (priv->afbcd.ops)
priv->afbcd.ops->init(priv);
- return drm_mode_config_helper_resume(priv->drm);
+ return drm_mode_config_helper_resume(&priv->drm);
}
static void meson_drv_shutdown(struct platform_device *pdev)
@@ -455,8 +448,8 @@ static void meson_drv_shutdown(struct platform_device *pdev)
if (!priv)
return;
- drm_kms_helper_poll_fini(priv->drm);
- drm_atomic_helper_shutdown(priv->drm);
+ drm_kms_helper_poll_fini(&priv->drm);
+ drm_atomic_helper_shutdown(&priv->drm);
}
/*
diff --git a/drivers/gpu/drm/meson/meson_drv.h b/drivers/gpu/drm/meson/meson_drv.h
index 3f9345c14f31..c4c6c810cb20 100644
--- a/drivers/gpu/drm/meson/meson_drv.h
+++ b/drivers/gpu/drm/meson/meson_drv.h
@@ -53,7 +53,7 @@ struct meson_drm {
u8 canvas_id_vd1_1;
u8 canvas_id_vd1_2;
- struct drm_device *drm;
+ struct drm_device drm;
struct drm_crtc *crtc;
struct drm_plane *primary_plane;
struct drm_plane *overlay_plane;
diff --git a/drivers/gpu/drm/meson/meson_encoder_cvbs.c b/drivers/gpu/drm/meson/meson_encoder_cvbs.c
index d1191de855d9..ddca22c8c1ff 100644
--- a/drivers/gpu/drm/meson/meson_encoder_cvbs.c
+++ b/drivers/gpu/drm/meson/meson_encoder_cvbs.c
@@ -104,7 +104,7 @@ static int meson_encoder_cvbs_get_modes(struct drm_bridge *bridge,
for (i = 0; i < MESON_CVBS_MODES_COUNT; ++i) {
struct meson_cvbs_mode *meson_mode = &meson_cvbs_modes[i];
- mode = drm_mode_duplicate(priv->drm, &meson_mode->mode);
+ mode = drm_mode_duplicate(&priv->drm, &meson_mode->mode);
if (!mode) {
dev_err(priv->dev, "Failed to create a new display mode\n");
return 0;
@@ -221,7 +221,7 @@ static const struct drm_bridge_funcs meson_encoder_cvbs_bridge_funcs = {
int meson_encoder_cvbs_probe(struct meson_drm *priv)
{
- struct drm_device *drm = priv->drm;
+ struct drm_device *drm = &priv->drm;
struct meson_encoder_cvbs *meson_encoder_cvbs;
struct drm_connector *connector;
struct device_node *remote;
@@ -256,7 +256,7 @@ int meson_encoder_cvbs_probe(struct meson_drm *priv)
meson_encoder_cvbs->priv = priv;
/* Encoder */
- ret = drm_simple_encoder_init(priv->drm, &meson_encoder_cvbs->encoder,
+ ret = drm_simple_encoder_init(&priv->drm, &meson_encoder_cvbs->encoder,
DRM_MODE_ENCODER_TVDAC);
if (ret)
return dev_err_probe(priv->dev, ret,
@@ -273,7 +273,7 @@ int meson_encoder_cvbs_probe(struct meson_drm *priv)
}
/* Initialize & attach Bridge Connector */
- connector = drm_bridge_connector_init(priv->drm, &meson_encoder_cvbs->encoder);
+ connector = drm_bridge_connector_init(&priv->drm, &meson_encoder_cvbs->encoder);
if (IS_ERR(connector))
return dev_err_probe(priv->dev, PTR_ERR(connector),
"Unable to create CVBS bridge connector\n");
diff --git a/drivers/gpu/drm/meson/meson_overlay.c b/drivers/gpu/drm/meson/meson_overlay.c
index 7f98de38842b..60ee7f758723 100644
--- a/drivers/gpu/drm/meson/meson_overlay.c
+++ b/drivers/gpu/drm/meson/meson_overlay.c
@@ -484,7 +484,7 @@ static void meson_overlay_atomic_update(struct drm_plane *plane,
interlace_mode = new_state->crtc->mode.flags & DRM_MODE_FLAG_INTERLACE;
- spin_lock_irqsave(&priv->drm->event_lock, flags);
+ spin_lock_irqsave(&priv->drm.event_lock, flags);
if ((fb->modifier & DRM_FORMAT_MOD_AMLOGIC_FBC(0, 0)) ==
DRM_FORMAT_MOD_AMLOGIC_FBC(0, 0)) {
@@ -717,7 +717,7 @@ static void meson_overlay_atomic_update(struct drm_plane *plane,
priv->viu.vd1_enabled = true;
- spin_unlock_irqrestore(&priv->drm->event_lock, flags);
+ spin_unlock_irqrestore(&priv->drm.event_lock, flags);
DRM_DEBUG_DRIVER("\n");
}
@@ -838,7 +838,7 @@ int meson_overlay_create(struct meson_drm *priv)
DRM_DEBUG_DRIVER("\n");
- meson_overlay = devm_kzalloc(priv->drm->dev, sizeof(*meson_overlay),
+ meson_overlay = devm_kzalloc(priv->drm.dev, sizeof(*meson_overlay),
GFP_KERNEL);
if (!meson_overlay)
return -ENOMEM;
@@ -846,7 +846,7 @@ int meson_overlay_create(struct meson_drm *priv)
meson_overlay->priv = priv;
plane = &meson_overlay->base;
- drm_universal_plane_init(priv->drm, plane, 0xFF,
+ drm_universal_plane_init(&priv->drm, plane, 0xFF,
&meson_overlay_funcs,
supported_drm_formats,
ARRAY_SIZE(supported_drm_formats),
diff --git a/drivers/gpu/drm/meson/meson_plane.c b/drivers/gpu/drm/meson/meson_plane.c
index b43ac61201f3..13be94309bf4 100644
--- a/drivers/gpu/drm/meson/meson_plane.c
+++ b/drivers/gpu/drm/meson/meson_plane.c
@@ -157,7 +157,7 @@ static void meson_plane_atomic_update(struct drm_plane *plane,
* Update Buffer
* Enable Plane
*/
- spin_lock_irqsave(&priv->drm->event_lock, flags);
+ spin_lock_irqsave(&priv->drm.event_lock, flags);
/* Check if AFBC decoder is required for this buffer */
if ((meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXM) ||
@@ -393,7 +393,7 @@ static void meson_plane_atomic_update(struct drm_plane *plane,
priv->viu.osd1_enabled = true;
- spin_unlock_irqrestore(&priv->drm->event_lock, flags);
+ spin_unlock_irqrestore(&priv->drm.event_lock, flags);
}
static void meson_plane_atomic_disable(struct drm_plane *plane,
@@ -536,7 +536,7 @@ int meson_plane_create(struct meson_drm *priv)
const uint64_t *format_modifiers = format_modifiers_default;
int ret;
- meson_plane = devm_kzalloc(priv->drm->dev, sizeof(*meson_plane),
+ meson_plane = devm_kzalloc(priv->drm.dev, sizeof(*meson_plane),
GFP_KERNEL);
if (!meson_plane)
return -ENOMEM;
@@ -549,14 +549,14 @@ int meson_plane_create(struct meson_drm *priv)
else if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A))
format_modifiers = format_modifiers_afbc_g12a;
- ret = drm_universal_plane_init(priv->drm, plane, 0xFF,
+ ret = drm_universal_plane_init(&priv->drm, plane, 0xFF,
&meson_plane_funcs,
supported_drm_formats,
ARRAY_SIZE(supported_drm_formats),
format_modifiers,
DRM_PLANE_TYPE_PRIMARY, "meson_primary_plane");
if (ret) {
- devm_kfree(priv->drm->dev, meson_plane);
+ devm_kfree(priv->drm.dev, meson_plane);
return ret;
}
--
2.30.2Hi Anastasia,
thank you for picking this up and apologies for my late reply.
On Tue, Sep 10, 2024 at 5:17 PM Anastasia Belova <abelova@astralinux.ru> wrote:
[...]
> @@ -215,7 +210,7 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
> regs = devm_platform_ioremap_resource_byname(pdev, "vpu");
> if (IS_ERR(regs)) {
> ret = PTR_ERR(regs);
> - goto free_drm;
> + goto remove_encoders;
can't we just return PTR_ERR(regs) here since all resources above are
now automatically free (as they are devm_* managed)?
> }
>
> priv->io_base = regs;
> @@ -223,13 +218,13 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
> res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "hhi");
> if (!res) {
> ret = -EINVAL;
> - goto free_drm;
> + goto remove_encoders;
same here, can't we just return -EINVAL directly?
> }
> /* Simply ioremap since it may be a shared register zone */
> regs = devm_ioremap(dev, res->start, resource_size(res));
> if (!regs) {
> ret = -EADDRNOTAVAIL;
> - goto free_drm;
> + goto remove_encoders;
also just return -EADDRNOTAVAIL directly
> }
>
> priv->hhi = devm_regmap_init_mmio(dev, regs,
> @@ -237,18 +232,18 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
> if (IS_ERR(priv->hhi)) {
> dev_err(&pdev->dev, "Couldn't create the HHI regmap\n");
> ret = PTR_ERR(priv->hhi);
either return PTR_ERR(priv->hhi) here or convert the dev_err to
dev_err_probe and return it's value
> - goto free_drm;
> + goto remove_encoders;
> }
>
> priv->canvas = meson_canvas_get(dev);
> if (IS_ERR(priv->canvas)) {
> ret = PTR_ERR(priv->canvas);
> - goto free_drm;
> + goto remove_encoders;
return PTR_ERR(priv->canvas);
> }
>
> ret = meson_canvas_alloc(priv->canvas, &priv->canvas_id_osd1);
> if (ret)
> - goto free_drm;
> + goto remove_encoders;
meson_canvas_alloc() is the first non devm_* managed allocation.
so this is the last time we can simply "return ret;", starting with
the next error case we need goto for cleaning up resources.
> ret = meson_canvas_alloc(priv->canvas, &priv->canvas_id_vd1_0);
> if (ret)
> goto free_canvas_osd1;
(starting from here the goto free_... is needed and this one is
actually already correct)
> @@ -261,7 +256,7 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
>
> priv->vsync_irq = platform_get_irq(pdev, 0);
>
> - ret = drm_vblank_init(drm, 1);
> + ret = drm_vblank_init(&priv->drm, 1);
> if (ret)
> goto free_canvas_vd1_2;
>
> @@ -284,10 +279,10 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
> ret = drmm_mode_config_init(drm);
> if (ret)
> goto free_canvas_vd1_2;
> - drm->mode_config.max_width = 3840;
> - drm->mode_config.max_height = 2160;
> - drm->mode_config.funcs = &meson_mode_config_funcs;
> - drm->mode_config.helper_private = &meson_mode_config_helpers;
> + priv->drm.mode_config.max_width = 3840;
> + priv->drm.mode_config.max_height = 2160;
> + priv->drm.mode_config.funcs = &meson_mode_config_funcs;
> + priv->drm.mode_config.helper_private = &meson_mode_config_helpers;
>
> /* Hardware Initialization */
>
> @@ -308,9 +303,9 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
> goto exit_afbcd;
>
> if (has_components) {
> - ret = component_bind_all(dev, drm);
> + ret = component_bind_all(dev, &priv->drm);
> if (ret) {
> - dev_err(drm->dev, "Couldn't bind all components\n");
> + dev_err(priv->drm.dev, "Couldn't bind all components\n");
> /* Do not try to unbind */
> has_components = false;
> goto exit_afbcd;
just below this we have:
ret = meson_encoder_hdmi_probe(priv);
if (ret)
goto exit_afbcd;
I think this is the place where we need to call component_unbind_all,
so we need some kind of "goto unbind_components;" here.
All other "goto exit_afbcd;" below will need to be converted to "goto
unbind_components;" (or whichever name you choose) as well.
Also the ordering where component_unbind_all() is incorrect. It's been
incorrect even before your patch - but maybe now is the right time to
clean it up?
I had to double check because I was surprised about the calls to
meson_encoder_{cvbs,dsi,hdmi}_remove(priv);
It turns out that it's safe to call these three functions at any time
because they only ever do something if their _probe() counterpart has
been called.
Best regards,
Martin
Switch to a managed drm device to cleanup some error handling
and make future work easier.
Fix dereference of NULL in meson_drv_bind_master by removing
drm_dev_put(drm) before meson_encoder_*_remove and
component_unbind_all where drm is dereferenced.
Co-developed by Linux Verification Center (linuxtesting.org).
Cc: stable@vger.kernel.org # 6.5
Fixes: 6a044642988b ("drm/meson: fix unbind path if HDMI fails to bind")
Signed-off-by: Anastasia Belova <abelova@astralinux.ru>
---
drivers/gpu/drm/meson/meson_crtc.c | 10 +--
drivers/gpu/drm/meson/meson_drv.c | 93 ++++++++++------------
drivers/gpu/drm/meson/meson_drv.h | 2 +-
drivers/gpu/drm/meson/meson_encoder_cvbs.c | 8 +-
drivers/gpu/drm/meson/meson_overlay.c | 8 +-
drivers/gpu/drm/meson/meson_plane.c | 10 +--
6 files changed, 59 insertions(+), 72 deletions(-)
diff --git a/drivers/gpu/drm/meson/meson_crtc.c b/drivers/gpu/drm/meson/meson_crtc.c
index d70616da8ce2..e1c0bf3baeea 100644
--- a/drivers/gpu/drm/meson/meson_crtc.c
+++ b/drivers/gpu/drm/meson/meson_crtc.c
@@ -662,13 +662,13 @@ void meson_crtc_irq(struct meson_drm *priv)
drm_crtc_handle_vblank(priv->crtc);
- spin_lock_irqsave(&priv->drm->event_lock, flags);
+ spin_lock_irqsave(&priv->drm.event_lock, flags);
if (meson_crtc->event) {
drm_crtc_send_vblank_event(priv->crtc, meson_crtc->event);
drm_crtc_vblank_put(priv->crtc);
meson_crtc->event = NULL;
}
- spin_unlock_irqrestore(&priv->drm->event_lock, flags);
+ spin_unlock_irqrestore(&priv->drm.event_lock, flags);
}
int meson_crtc_create(struct meson_drm *priv)
@@ -677,18 +677,18 @@ int meson_crtc_create(struct meson_drm *priv)
struct drm_crtc *crtc;
int ret;
- meson_crtc = devm_kzalloc(priv->drm->dev, sizeof(*meson_crtc),
+ meson_crtc = devm_kzalloc(priv->drm.dev, sizeof(*meson_crtc),
GFP_KERNEL);
if (!meson_crtc)
return -ENOMEM;
meson_crtc->priv = priv;
crtc = &meson_crtc->base;
- ret = drm_crtc_init_with_planes(priv->drm, crtc,
+ ret = drm_crtc_init_with_planes(&priv->drm, crtc,
priv->primary_plane, NULL,
&meson_crtc_funcs, "meson_crtc");
if (ret) {
- dev_err(priv->drm->dev, "Failed to init CRTC\n");
+ dev_err(priv->drm.dev, "Failed to init CRTC\n");
return ret;
}
diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c
index 4bd0baa2a4f5..dd87c6b61e9e 100644
--- a/drivers/gpu/drm/meson/meson_drv.c
+++ b/drivers/gpu/drm/meson/meson_drv.c
@@ -182,7 +182,6 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
struct platform_device *pdev = to_platform_device(dev);
const struct meson_drm_match_data *match;
struct meson_drm *priv;
- struct drm_device *drm;
struct resource *res;
void __iomem *regs;
int ret, i;
@@ -197,58 +196,49 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
if (!match)
return -ENODEV;
- drm = drm_dev_alloc(&meson_driver, dev);
- if (IS_ERR(drm))
- return PTR_ERR(drm);
+ priv = devm_drm_dev_alloc(dev, &meson_driver,
+ struct meson_drm, drm);
- priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
- if (!priv) {
- ret = -ENOMEM;
- goto free_drm;
- }
- drm->dev_private = priv;
- priv->drm = drm;
+ if (IS_ERR(priv))
+ return PTR_ERR(priv);
+
+ priv->drm.dev_private = priv;
priv->dev = dev;
priv->compat = match->compat;
priv->afbcd.ops = match->afbcd_ops;
regs = devm_platform_ioremap_resource_byname(pdev, "vpu");
if (IS_ERR(regs)) {
- ret = PTR_ERR(regs);
- goto free_drm;
+ return PTR_ERR(regs);
}
priv->io_base = regs;
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "hhi");
if (!res) {
- ret = -EINVAL;
- goto free_drm;
+ return -EINVAL;
}
/* Simply ioremap since it may be a shared register zone */
regs = devm_ioremap(dev, res->start, resource_size(res));
if (!regs) {
- ret = -EADDRNOTAVAIL;
- goto free_drm;
+ return -EADDRNOTAVAIL;
}
priv->hhi = devm_regmap_init_mmio(dev, regs,
&meson_regmap_config);
if (IS_ERR(priv->hhi)) {
dev_err(&pdev->dev, "Couldn't create the HHI regmap\n");
- ret = PTR_ERR(priv->hhi);
- goto free_drm;
+ return PTR_ERR(priv->hhi);
}
priv->canvas = meson_canvas_get(dev);
if (IS_ERR(priv->canvas)) {
- ret = PTR_ERR(priv->canvas);
- goto free_drm;
+ return PTR_ERR(priv->canvas);
}
ret = meson_canvas_alloc(priv->canvas, &priv->canvas_id_osd1);
if (ret)
- goto free_drm;
+ return ret;
ret = meson_canvas_alloc(priv->canvas, &priv->canvas_id_vd1_0);
if (ret)
goto free_canvas_osd1;
@@ -261,7 +251,7 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
priv->vsync_irq = platform_get_irq(pdev, 0);
- ret = drm_vblank_init(drm, 1);
+ ret = drm_vblank_init(&priv->drm, 1);
if (ret)
goto free_canvas_vd1_2;
@@ -281,13 +271,13 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
if (ret)
goto free_canvas_vd1_2;
- ret = drmm_mode_config_init(drm);
+ ret = drmm_mode_config_init(&priv->drm);
if (ret)
goto free_canvas_vd1_2;
- drm->mode_config.max_width = 3840;
- drm->mode_config.max_height = 2160;
- drm->mode_config.funcs = &meson_mode_config_funcs;
- drm->mode_config.helper_private = &meson_mode_config_helpers;
+ priv->drm.mode_config.max_width = 3840;
+ priv->drm.mode_config.max_height = 2160;
+ priv->drm.mode_config.funcs = &meson_mode_config_funcs;
+ priv->drm.mode_config.helper_private = &meson_mode_config_helpers;
/* Hardware Initialization */
@@ -308,9 +298,9 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
goto exit_afbcd;
if (has_components) {
- ret = component_bind_all(dev, drm);
+ ret = component_bind_all(dev, &priv->drm);
if (ret) {
- dev_err(drm->dev, "Couldn't bind all components\n");
+ dev_err(priv->drm.dev, "Couldn't bind all components\n");
/* Do not try to unbind */
has_components = false;
goto exit_afbcd;
@@ -319,46 +309,49 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
ret = meson_encoder_hdmi_probe(priv);
if (ret)
- goto exit_afbcd;
+ goto unbind_components;
if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A)) {
ret = meson_encoder_dsi_probe(priv);
if (ret)
- goto exit_afbcd;
+ goto unbind_components;
}
ret = meson_plane_create(priv);
if (ret)
- goto exit_afbcd;
+ goto unbind_components;
ret = meson_overlay_create(priv);
if (ret)
- goto exit_afbcd;
+ goto unbind_components;
ret = meson_crtc_create(priv);
if (ret)
- goto exit_afbcd;
+ goto unbind_components;
- ret = request_irq(priv->vsync_irq, meson_irq, 0, drm->driver->name, drm);
+ ret = request_irq(priv->vsync_irq, meson_irq, 0, priv->drm.driver->name, &priv->drm);
if (ret)
- goto exit_afbcd;
+ goto unbind_components;
- drm_mode_config_reset(drm);
+ drm_mode_config_reset(&priv->drm);
- drm_kms_helper_poll_init(drm);
+ drm_kms_helper_poll_init(&priv->drm);
platform_set_drvdata(pdev, priv);
- ret = drm_dev_register(drm, 0);
+ ret = drm_dev_register(&priv->drm, 0);
if (ret)
goto uninstall_irq;
- drm_fbdev_dma_setup(drm, 32);
+ drm_fbdev_dma_setup(&priv->drm, 32);
return 0;
uninstall_irq:
- free_irq(priv->vsync_irq, drm);
+ free_irq(priv->vsync_irq, &priv->drm);
+unbind_components:
+ if (has_components)
+ component_unbind_all(dev, &priv->drm);
exit_afbcd:
if (priv->afbcd.ops)
priv->afbcd.ops->exit(priv);
@@ -370,16 +363,11 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
meson_canvas_free(priv->canvas, priv->canvas_id_vd1_0);
free_canvas_osd1:
meson_canvas_free(priv->canvas, priv->canvas_id_osd1);
-free_drm:
- drm_dev_put(drm);
meson_encoder_dsi_remove(priv);
meson_encoder_hdmi_remove(priv);
meson_encoder_cvbs_remove(priv);
- if (has_components)
- component_unbind_all(dev, drm);
-
return ret;
}
@@ -391,7 +379,7 @@ static int meson_drv_bind(struct device *dev)
static void meson_drv_unbind(struct device *dev)
{
struct meson_drm *priv = dev_get_drvdata(dev);
- struct drm_device *drm = priv->drm;
+ struct drm_device *drm = &priv->drm;
if (priv->canvas) {
meson_canvas_free(priv->canvas, priv->canvas_id_osd1);
@@ -404,7 +392,6 @@ static void meson_drv_unbind(struct device *dev)
drm_kms_helper_poll_fini(drm);
drm_atomic_helper_shutdown(drm);
free_irq(priv->vsync_irq, drm);
- drm_dev_put(drm);
meson_encoder_dsi_remove(priv);
meson_encoder_hdmi_remove(priv);
@@ -428,7 +415,7 @@ static int __maybe_unused meson_drv_pm_suspend(struct device *dev)
if (!priv)
return 0;
- return drm_mode_config_helper_suspend(priv->drm);
+ return drm_mode_config_helper_suspend(&priv->drm);
}
static int __maybe_unused meson_drv_pm_resume(struct device *dev)
@@ -445,7 +432,7 @@ static int __maybe_unused meson_drv_pm_resume(struct device *dev)
if (priv->afbcd.ops)
priv->afbcd.ops->init(priv);
- return drm_mode_config_helper_resume(priv->drm);
+ return drm_mode_config_helper_resume(&priv->drm);
}
static void meson_drv_shutdown(struct platform_device *pdev)
@@ -455,8 +442,8 @@ static void meson_drv_shutdown(struct platform_device *pdev)
if (!priv)
return;
- drm_kms_helper_poll_fini(priv->drm);
- drm_atomic_helper_shutdown(priv->drm);
+ drm_kms_helper_poll_fini(&priv->drm);
+ drm_atomic_helper_shutdown(&priv->drm);
}
/*
diff --git a/drivers/gpu/drm/meson/meson_drv.h b/drivers/gpu/drm/meson/meson_drv.h
index 3f9345c14f31..c4c6c810cb20 100644
--- a/drivers/gpu/drm/meson/meson_drv.h
+++ b/drivers/gpu/drm/meson/meson_drv.h
@@ -53,7 +53,7 @@ struct meson_drm {
u8 canvas_id_vd1_1;
u8 canvas_id_vd1_2;
- struct drm_device *drm;
+ struct drm_device drm;
struct drm_crtc *crtc;
struct drm_plane *primary_plane;
struct drm_plane *overlay_plane;
diff --git a/drivers/gpu/drm/meson/meson_encoder_cvbs.c b/drivers/gpu/drm/meson/meson_encoder_cvbs.c
index d1191de855d9..ddca22c8c1ff 100644
--- a/drivers/gpu/drm/meson/meson_encoder_cvbs.c
+++ b/drivers/gpu/drm/meson/meson_encoder_cvbs.c
@@ -104,7 +104,7 @@ static int meson_encoder_cvbs_get_modes(struct drm_bridge *bridge,
for (i = 0; i < MESON_CVBS_MODES_COUNT; ++i) {
struct meson_cvbs_mode *meson_mode = &meson_cvbs_modes[i];
- mode = drm_mode_duplicate(priv->drm, &meson_mode->mode);
+ mode = drm_mode_duplicate(&priv->drm, &meson_mode->mode);
if (!mode) {
dev_err(priv->dev, "Failed to create a new display mode\n");
return 0;
@@ -221,7 +221,7 @@ static const struct drm_bridge_funcs meson_encoder_cvbs_bridge_funcs = {
int meson_encoder_cvbs_probe(struct meson_drm *priv)
{
- struct drm_device *drm = priv->drm;
+ struct drm_device *drm = &priv->drm;
struct meson_encoder_cvbs *meson_encoder_cvbs;
struct drm_connector *connector;
struct device_node *remote;
@@ -256,7 +256,7 @@ int meson_encoder_cvbs_probe(struct meson_drm *priv)
meson_encoder_cvbs->priv = priv;
/* Encoder */
- ret = drm_simple_encoder_init(priv->drm, &meson_encoder_cvbs->encoder,
+ ret = drm_simple_encoder_init(&priv->drm, &meson_encoder_cvbs->encoder,
DRM_MODE_ENCODER_TVDAC);
if (ret)
return dev_err_probe(priv->dev, ret,
@@ -273,7 +273,7 @@ int meson_encoder_cvbs_probe(struct meson_drm *priv)
}
/* Initialize & attach Bridge Connector */
- connector = drm_bridge_connector_init(priv->drm, &meson_encoder_cvbs->encoder);
+ connector = drm_bridge_connector_init(&priv->drm, &meson_encoder_cvbs->encoder);
if (IS_ERR(connector))
return dev_err_probe(priv->dev, PTR_ERR(connector),
"Unable to create CVBS bridge connector\n");
diff --git a/drivers/gpu/drm/meson/meson_overlay.c b/drivers/gpu/drm/meson/meson_overlay.c
index 7f98de38842b..60ee7f758723 100644
--- a/drivers/gpu/drm/meson/meson_overlay.c
+++ b/drivers/gpu/drm/meson/meson_overlay.c
@@ -484,7 +484,7 @@ static void meson_overlay_atomic_update(struct drm_plane *plane,
interlace_mode = new_state->crtc->mode.flags & DRM_MODE_FLAG_INTERLACE;
- spin_lock_irqsave(&priv->drm->event_lock, flags);
+ spin_lock_irqsave(&priv->drm.event_lock, flags);
if ((fb->modifier & DRM_FORMAT_MOD_AMLOGIC_FBC(0, 0)) ==
DRM_FORMAT_MOD_AMLOGIC_FBC(0, 0)) {
@@ -717,7 +717,7 @@ static void meson_overlay_atomic_update(struct drm_plane *plane,
priv->viu.vd1_enabled = true;
- spin_unlock_irqrestore(&priv->drm->event_lock, flags);
+ spin_unlock_irqrestore(&priv->drm.event_lock, flags);
DRM_DEBUG_DRIVER("\n");
}
@@ -838,7 +838,7 @@ int meson_overlay_create(struct meson_drm *priv)
DRM_DEBUG_DRIVER("\n");
- meson_overlay = devm_kzalloc(priv->drm->dev, sizeof(*meson_overlay),
+ meson_overlay = devm_kzalloc(priv->drm.dev, sizeof(*meson_overlay),
GFP_KERNEL);
if (!meson_overlay)
return -ENOMEM;
@@ -846,7 +846,7 @@ int meson_overlay_create(struct meson_drm *priv)
meson_overlay->priv = priv;
plane = &meson_overlay->base;
- drm_universal_plane_init(priv->drm, plane, 0xFF,
+ drm_universal_plane_init(&priv->drm, plane, 0xFF,
&meson_overlay_funcs,
supported_drm_formats,
ARRAY_SIZE(supported_drm_formats),
diff --git a/drivers/gpu/drm/meson/meson_plane.c b/drivers/gpu/drm/meson/meson_plane.c
index b43ac61201f3..13be94309bf4 100644
--- a/drivers/gpu/drm/meson/meson_plane.c
+++ b/drivers/gpu/drm/meson/meson_plane.c
@@ -157,7 +157,7 @@ static void meson_plane_atomic_update(struct drm_plane *plane,
* Update Buffer
* Enable Plane
*/
- spin_lock_irqsave(&priv->drm->event_lock, flags);
+ spin_lock_irqsave(&priv->drm.event_lock, flags);
/* Check if AFBC decoder is required for this buffer */
if ((meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXM) ||
@@ -393,7 +393,7 @@ static void meson_plane_atomic_update(struct drm_plane *plane,
priv->viu.osd1_enabled = true;
- spin_unlock_irqrestore(&priv->drm->event_lock, flags);
+ spin_unlock_irqrestore(&priv->drm.event_lock, flags);
}
static void meson_plane_atomic_disable(struct drm_plane *plane,
@@ -536,7 +536,7 @@ int meson_plane_create(struct meson_drm *priv)
const uint64_t *format_modifiers = format_modifiers_default;
int ret;
- meson_plane = devm_kzalloc(priv->drm->dev, sizeof(*meson_plane),
+ meson_plane = devm_kzalloc(priv->drm.dev, sizeof(*meson_plane),
GFP_KERNEL);
if (!meson_plane)
return -ENOMEM;
@@ -549,14 +549,14 @@ int meson_plane_create(struct meson_drm *priv)
else if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A))
format_modifiers = format_modifiers_afbc_g12a;
- ret = drm_universal_plane_init(priv->drm, plane, 0xFF,
+ ret = drm_universal_plane_init(&priv->drm, plane, 0xFF,
&meson_plane_funcs,
supported_drm_formats,
ARRAY_SIZE(supported_drm_formats),
format_modifiers,
DRM_PLANE_TYPE_PRIMARY, "meson_primary_plane");
if (ret) {
- devm_kfree(priv->drm->dev, meson_plane);
+ devm_kfree(priv->drm.dev, meson_plane);
return ret;
}
--
2.30.2Hi Anastasia,
kernel test robot noticed the following build errors:
[auto build test ERROR on linus/master]
[also build test ERROR on v6.12-rc1 next-20240930]
[cannot apply to drm-misc/drm-misc-next]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Anastasia-Belova/drm-meson-switch-to-a-managed-drm-device/20240930-162755
base: linus/master
patch link: https://lore.kernel.org/r/20240930082640.129543-1-abelova%40astralinux.ru
patch subject: [PATCH v3] drm/meson: switch to a managed drm device
config: arm64-defconfig (https://download.01.org/0day-ci/archive/20241001/202410011034.NTOKwoXq-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 14.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241001/202410011034.NTOKwoXq-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202410011034.NTOKwoXq-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from drivers/gpu/drm/meson/meson_viu.c:14:
>> drivers/gpu/drm/meson/meson_drv.h:56:27: error: field 'drm' has incomplete type
56 | struct drm_device drm;
| ^~~
--
drivers/gpu/drm/meson/meson_encoder_hdmi.c: In function 'meson_encoder_hdmi_probe':
>> drivers/gpu/drm/meson/meson_encoder_hdmi.c:405:43: error: incompatible type for argument 1 of 'drm_simple_encoder_init'
405 | ret = drm_simple_encoder_init(priv->drm, &meson_encoder_hdmi->encoder,
| ~~~~^~~~~
| |
| struct drm_device
In file included from drivers/gpu/drm/meson/meson_encoder_hdmi.c:27:
include/drm/drm_simple_kms_helper.h:261:48: note: expected 'struct drm_device *' but argument is of type 'struct drm_device'
261 | int drm_simple_encoder_init(struct drm_device *dev,
| ~~~~~~~~~~~~~~~~~~~^~~
>> drivers/gpu/drm/meson/meson_encoder_hdmi.c:423:71: error: incompatible type for argument 1 of 'drm_bridge_connector_init'
423 | meson_encoder_hdmi->connector = drm_bridge_connector_init(priv->drm,
| ~~~~^~~~~
| |
| struct drm_device
In file included from drivers/gpu/drm/meson/meson_encoder_hdmi.c:23:
include/drm/drm_bridge_connector.h:13:68: note: expected 'struct drm_device *' but argument is of type 'struct drm_device'
13 | struct drm_connector *drm_bridge_connector_init(struct drm_device *drm,
| ~~~~~~~~~~~~~~~~~~~^~~
--
drivers/gpu/drm/meson/meson_encoder_dsi.c: In function 'meson_encoder_dsi_probe':
>> drivers/gpu/drm/meson/meson_encoder_dsi.c:135:43: error: incompatible type for argument 1 of 'drm_simple_encoder_init'
135 | ret = drm_simple_encoder_init(priv->drm, &meson_encoder_dsi->encoder,
| ~~~~^~~~~
| |
| struct drm_device
In file included from drivers/gpu/drm/meson/meson_encoder_dsi.c:13:
include/drm/drm_simple_kms_helper.h:261:48: note: expected 'struct drm_device *' but argument is of type 'struct drm_device'
261 | int drm_simple_encoder_init(struct drm_device *dev,
| ~~~~~~~~~~~~~~~~~~~^~~
vim +/drm +56 drivers/gpu/drm/meson/meson_drv.h
42
43 struct meson_drm {
44 struct device *dev;
45 enum vpu_compatible compat;
46 void __iomem *io_base;
47 struct regmap *hhi;
48 int vsync_irq;
49
50 struct meson_canvas *canvas;
51 u8 canvas_id_osd1;
52 u8 canvas_id_vd1_0;
53 u8 canvas_id_vd1_1;
54 u8 canvas_id_vd1_2;
55
> 56 struct drm_device drm;
57 struct drm_crtc *crtc;
58 struct drm_plane *primary_plane;
59 struct drm_plane *overlay_plane;
60 void *encoders[MESON_ENC_LAST];
61
62 const struct meson_drm_soc_limits *limits;
63
64 /* Components Data */
65 struct {
66 bool osd1_enabled;
67 bool osd1_interlace;
68 bool osd1_commit;
69 bool osd1_afbcd;
70 uint32_t osd1_ctrl_stat;
71 uint32_t osd1_ctrl_stat2;
72 uint32_t osd1_blk0_cfg[5];
73 uint32_t osd1_blk1_cfg4;
74 uint32_t osd1_blk2_cfg4;
75 uint32_t osd1_addr;
76 uint32_t osd1_stride;
77 uint32_t osd1_height;
78 uint32_t osd1_width;
79 uint32_t osd_sc_ctrl0;
80 uint32_t osd_sc_i_wh_m1;
81 uint32_t osd_sc_o_h_start_end;
82 uint32_t osd_sc_o_v_start_end;
83 uint32_t osd_sc_v_ini_phase;
84 uint32_t osd_sc_v_phase_step;
85 uint32_t osd_sc_h_ini_phase;
86 uint32_t osd_sc_h_phase_step;
87 uint32_t osd_sc_h_ctrl0;
88 uint32_t osd_sc_v_ctrl0;
89 uint32_t osd_blend_din0_scope_h;
90 uint32_t osd_blend_din0_scope_v;
91 uint32_t osb_blend0_size;
92 uint32_t osb_blend1_size;
93
94 bool vd1_enabled;
95 bool vd1_commit;
96 bool vd1_afbc;
97 unsigned int vd1_planes;
98 uint32_t vd1_if0_gen_reg;
99 uint32_t vd1_if0_luma_x0;
100 uint32_t vd1_if0_luma_y0;
101 uint32_t vd1_if0_chroma_x0;
102 uint32_t vd1_if0_chroma_y0;
103 uint32_t vd1_if0_repeat_loop;
104 uint32_t vd1_if0_luma0_rpt_pat;
105 uint32_t vd1_if0_chroma0_rpt_pat;
106 uint32_t vd1_range_map_y;
107 uint32_t vd1_range_map_cb;
108 uint32_t vd1_range_map_cr;
109 uint32_t viu_vd1_fmt_w;
110 uint32_t vd1_if0_canvas0;
111 uint32_t vd1_if0_gen_reg2;
112 uint32_t viu_vd1_fmt_ctrl;
113 uint32_t vd1_addr0;
114 uint32_t vd1_addr1;
115 uint32_t vd1_addr2;
116 uint32_t vd1_stride0;
117 uint32_t vd1_stride1;
118 uint32_t vd1_stride2;
119 uint32_t vd1_height0;
120 uint32_t vd1_height1;
121 uint32_t vd1_height2;
122 uint32_t vd1_afbc_mode;
123 uint32_t vd1_afbc_en;
124 uint32_t vd1_afbc_head_addr;
125 uint32_t vd1_afbc_body_addr;
126 uint32_t vd1_afbc_conv_ctrl;
127 uint32_t vd1_afbc_dec_def_color;
128 uint32_t vd1_afbc_vd_cfmt_ctrl;
129 uint32_t vd1_afbc_vd_cfmt_w;
130 uint32_t vd1_afbc_vd_cfmt_h;
131 uint32_t vd1_afbc_mif_hor_scope;
132 uint32_t vd1_afbc_mif_ver_scope;
133 uint32_t vd1_afbc_size_out;
134 uint32_t vd1_afbc_pixel_hor_scope;
135 uint32_t vd1_afbc_pixel_ver_scope;
136 uint32_t vd1_afbc_size_in;
137 uint32_t vpp_pic_in_height;
138 uint32_t vpp_postblend_vd1_h_start_end;
139 uint32_t vpp_postblend_vd1_v_start_end;
140 uint32_t vpp_hsc_region12_startp;
141 uint32_t vpp_hsc_region34_startp;
142 uint32_t vpp_hsc_region4_endp;
143 uint32_t vpp_hsc_start_phase_step;
144 uint32_t vpp_hsc_region1_phase_slope;
145 uint32_t vpp_hsc_region3_phase_slope;
146 uint32_t vpp_line_in_length;
147 uint32_t vpp_preblend_h_size;
148 uint32_t vpp_vsc_region12_startp;
149 uint32_t vpp_vsc_region34_startp;
150 uint32_t vpp_vsc_region4_endp;
151 uint32_t vpp_vsc_start_phase_step;
152 uint32_t vpp_vsc_ini_phase;
153 uint32_t vpp_vsc_phase_ctrl;
154 uint32_t vpp_hsc_phase_ctrl;
155 uint32_t vpp_blend_vd2_h_start_end;
156 uint32_t vpp_blend_vd2_v_start_end;
157 } viu;
158
159 struct {
160 unsigned int current_mode;
161 bool hdmi_repeat;
162 bool venc_repeat;
163 bool hdmi_use_enci;
164 } venc;
165
166 struct {
167 dma_addr_t addr_dma;
168 uint32_t *addr;
169 unsigned int offset;
170 } rdma;
171
172 struct {
173 struct meson_afbcd_ops *ops;
174 u64 modifier;
175 u32 format;
176 } afbcd;
177 };
178
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
Hi Anastasia,
kernel test robot noticed the following build errors:
[auto build test ERROR on linus/master]
[also build test ERROR on v6.12-rc1 next-20240930]
[cannot apply to drm-misc/drm-misc-next]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Anastasia-Belova/drm-meson-switch-to-a-managed-drm-device/20240930-162755
base: linus/master
patch link: https://lore.kernel.org/r/20240930082640.129543-1-abelova%40astralinux.ru
patch subject: [PATCH v3] drm/meson: switch to a managed drm device
config: arm-randconfig-001-20240930 (https://download.01.org/0day-ci/archive/20241001/202410010450.fOkIu1ki-lkp@intel.com/config)
compiler: clang version 15.0.7 (https://github.com/llvm/llvm-project 8dfdcc7b7bf66834a761bd8de445840ef68e4d1a)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241001/202410010450.fOkIu1ki-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202410010450.fOkIu1ki-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from drivers/gpu/drm/meson/meson_osd_afbcd.c:12:
>> drivers/gpu/drm/meson/meson_drv.h:56:20: error: field has incomplete type 'struct drm_device'
struct drm_device drm;
^
include/drm/drm_print.h:37:8: note: forward declaration of 'struct drm_device'
struct drm_device;
^
1 error generated.
--
In file included from drivers/gpu/drm/meson/meson_venc.c:14:
>> drivers/gpu/drm/meson/meson_drv.h:56:20: error: field has incomplete type 'struct drm_device'
struct drm_device drm;
^
include/drm/drm_lease.h:12:8: note: forward declaration of 'struct drm_device'
struct drm_device;
^
1 error generated.
--
In file included from drivers/gpu/drm/meson/meson_vclk.c:12:
>> drivers/gpu/drm/meson/meson_drv.h:56:20: error: field has incomplete type 'struct drm_device'
struct drm_device drm;
^
include/drm/drm_print.h:37:8: note: forward declaration of 'struct drm_device'
struct drm_device;
^
In file included from drivers/gpu/drm/meson/meson_vclk.c:13:
In file included from drivers/gpu/drm/meson/meson_vclk.h:12:
In file included from include/drm/drm_modes.h:33:
In file included from include/drm/drm_connector.h:32:
In file included from include/drm/drm_util.h:36:
In file included from include/linux/kgdb.h:19:
In file included from include/linux/kprobes.h:28:
In file included from include/linux/ftrace.h:13:
In file included from include/linux/kallsyms.h:13:
In file included from include/linux/mm.h:1120:
In file included from include/linux/huge_mm.h:8:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:98:11: warning: array index 3 is past the end of the array (which contains 2 elements) [-Warray-bounds]
return (set->sig[3] | set->sig[2] |
^ ~
arch/arm/include/asm/signal.h:17:2: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
In file included from drivers/gpu/drm/meson/meson_vclk.c:13:
In file included from drivers/gpu/drm/meson/meson_vclk.h:12:
In file included from include/drm/drm_modes.h:33:
In file included from include/drm/drm_connector.h:32:
In file included from include/drm/drm_util.h:36:
In file included from include/linux/kgdb.h:19:
In file included from include/linux/kprobes.h:28:
In file included from include/linux/ftrace.h:13:
In file included from include/linux/kallsyms.h:13:
In file included from include/linux/mm.h:1120:
In file included from include/linux/huge_mm.h:8:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:98:25: warning: array index 2 is past the end of the array (which contains 2 elements) [-Warray-bounds]
return (set->sig[3] | set->sig[2] |
^ ~
arch/arm/include/asm/signal.h:17:2: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
In file included from drivers/gpu/drm/meson/meson_vclk.c:13:
In file included from drivers/gpu/drm/meson/meson_vclk.h:12:
In file included from include/drm/drm_modes.h:33:
In file included from include/drm/drm_connector.h:32:
In file included from include/drm/drm_util.h:36:
In file included from include/linux/kgdb.h:19:
In file included from include/linux/kprobes.h:28:
In file included from include/linux/ftrace.h:13:
In file included from include/linux/kallsyms.h:13:
In file included from include/linux/mm.h:1120:
In file included from include/linux/huge_mm.h:8:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:114:11: warning: array index 3 is past the end of the array (which contains 2 elements) [-Warray-bounds]
return (set1->sig[3] == set2->sig[3]) &&
^ ~
arch/arm/include/asm/signal.h:17:2: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
In file included from drivers/gpu/drm/meson/meson_vclk.c:13:
In file included from drivers/gpu/drm/meson/meson_vclk.h:12:
In file included from include/drm/drm_modes.h:33:
In file included from include/drm/drm_connector.h:32:
In file included from include/drm/drm_util.h:36:
In file included from include/linux/kgdb.h:19:
In file included from include/linux/kprobes.h:28:
In file included from include/linux/ftrace.h:13:
In file included from include/linux/kallsyms.h:13:
In file included from include/linux/mm.h:1120:
In file included from include/linux/huge_mm.h:8:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:114:27: warning: array index 3 is past the end of the array (which contains 2 elements) [-Warray-bounds]
return (set1->sig[3] == set2->sig[3]) &&
^ ~
arch/arm/include/asm/signal.h:17:2: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
In file included from drivers/gpu/drm/meson/meson_vclk.c:13:
In file included from drivers/gpu/drm/meson/meson_vclk.h:12:
In file included from include/drm/drm_modes.h:33:
In file included from include/drm/drm_connector.h:32:
In file included from include/drm/drm_util.h:36:
In file included from include/linux/kgdb.h:19:
In file included from include/linux/kprobes.h:28:
In file included from include/linux/ftrace.h:13:
In file included from include/linux/kallsyms.h:13:
In file included from include/linux/mm.h:1120:
In file included from include/linux/huge_mm.h:8:
--
In file included from drivers/gpu/drm/meson/meson_vpp.c:11:
>> drivers/gpu/drm/meson/meson_drv.h:56:20: error: field has incomplete type 'struct drm_device'
struct drm_device drm;
^
drivers/gpu/drm/meson/meson_drv.h:15:8: note: forward declaration of 'struct drm_device'
struct drm_device;
^
1 error generated.
--
>> drivers/gpu/drm/meson/meson_encoder_dsi.c:135:32: error: passing 'struct drm_device' to parameter of incompatible type 'struct drm_device *'; take the address with &
ret = drm_simple_encoder_init(priv->drm, &meson_encoder_dsi->encoder,
^~~~~~~~~
&
include/drm/drm_simple_kms_helper.h:261:48: note: passing argument to parameter 'dev' here
int drm_simple_encoder_init(struct drm_device *dev,
^
1 error generated.
--
In file included from drivers/gpu/drm/meson/meson_viu.c:14:
>> drivers/gpu/drm/meson/meson_drv.h:56:20: error: field has incomplete type 'struct drm_device'
struct drm_device drm;
^
include/drm/drm_fourcc.h:56:8: note: forward declaration of 'struct drm_device'
struct drm_device;
^
1 error generated.
--
>> drivers/gpu/drm/meson/meson_encoder_hdmi.c:405:32: error: passing 'struct drm_device' to parameter of incompatible type 'struct drm_device *'; take the address with &
ret = drm_simple_encoder_init(priv->drm, &meson_encoder_hdmi->encoder,
^~~~~~~~~
&
include/drm/drm_simple_kms_helper.h:261:48: note: passing argument to parameter 'dev' here
int drm_simple_encoder_init(struct drm_device *dev,
^
drivers/gpu/drm/meson/meson_encoder_hdmi.c:423:60: error: passing 'struct drm_device' to parameter of incompatible type 'struct drm_device *'; take the address with &
meson_encoder_hdmi->connector = drm_bridge_connector_init(priv->drm,
^~~~~~~~~
&
include/drm/drm_bridge_connector.h:13:68: note: passing argument to parameter 'drm' here
struct drm_connector *drm_bridge_connector_init(struct drm_device *drm,
^
2 errors generated.
vim +56 drivers/gpu/drm/meson/meson_drv.h
42
43 struct meson_drm {
44 struct device *dev;
45 enum vpu_compatible compat;
46 void __iomem *io_base;
47 struct regmap *hhi;
48 int vsync_irq;
49
50 struct meson_canvas *canvas;
51 u8 canvas_id_osd1;
52 u8 canvas_id_vd1_0;
53 u8 canvas_id_vd1_1;
54 u8 canvas_id_vd1_2;
55
> 56 struct drm_device drm;
57 struct drm_crtc *crtc;
58 struct drm_plane *primary_plane;
59 struct drm_plane *overlay_plane;
60 void *encoders[MESON_ENC_LAST];
61
62 const struct meson_drm_soc_limits *limits;
63
64 /* Components Data */
65 struct {
66 bool osd1_enabled;
67 bool osd1_interlace;
68 bool osd1_commit;
69 bool osd1_afbcd;
70 uint32_t osd1_ctrl_stat;
71 uint32_t osd1_ctrl_stat2;
72 uint32_t osd1_blk0_cfg[5];
73 uint32_t osd1_blk1_cfg4;
74 uint32_t osd1_blk2_cfg4;
75 uint32_t osd1_addr;
76 uint32_t osd1_stride;
77 uint32_t osd1_height;
78 uint32_t osd1_width;
79 uint32_t osd_sc_ctrl0;
80 uint32_t osd_sc_i_wh_m1;
81 uint32_t osd_sc_o_h_start_end;
82 uint32_t osd_sc_o_v_start_end;
83 uint32_t osd_sc_v_ini_phase;
84 uint32_t osd_sc_v_phase_step;
85 uint32_t osd_sc_h_ini_phase;
86 uint32_t osd_sc_h_phase_step;
87 uint32_t osd_sc_h_ctrl0;
88 uint32_t osd_sc_v_ctrl0;
89 uint32_t osd_blend_din0_scope_h;
90 uint32_t osd_blend_din0_scope_v;
91 uint32_t osb_blend0_size;
92 uint32_t osb_blend1_size;
93
94 bool vd1_enabled;
95 bool vd1_commit;
96 bool vd1_afbc;
97 unsigned int vd1_planes;
98 uint32_t vd1_if0_gen_reg;
99 uint32_t vd1_if0_luma_x0;
100 uint32_t vd1_if0_luma_y0;
101 uint32_t vd1_if0_chroma_x0;
102 uint32_t vd1_if0_chroma_y0;
103 uint32_t vd1_if0_repeat_loop;
104 uint32_t vd1_if0_luma0_rpt_pat;
105 uint32_t vd1_if0_chroma0_rpt_pat;
106 uint32_t vd1_range_map_y;
107 uint32_t vd1_range_map_cb;
108 uint32_t vd1_range_map_cr;
109 uint32_t viu_vd1_fmt_w;
110 uint32_t vd1_if0_canvas0;
111 uint32_t vd1_if0_gen_reg2;
112 uint32_t viu_vd1_fmt_ctrl;
113 uint32_t vd1_addr0;
114 uint32_t vd1_addr1;
115 uint32_t vd1_addr2;
116 uint32_t vd1_stride0;
117 uint32_t vd1_stride1;
118 uint32_t vd1_stride2;
119 uint32_t vd1_height0;
120 uint32_t vd1_height1;
121 uint32_t vd1_height2;
122 uint32_t vd1_afbc_mode;
123 uint32_t vd1_afbc_en;
124 uint32_t vd1_afbc_head_addr;
125 uint32_t vd1_afbc_body_addr;
126 uint32_t vd1_afbc_conv_ctrl;
127 uint32_t vd1_afbc_dec_def_color;
128 uint32_t vd1_afbc_vd_cfmt_ctrl;
129 uint32_t vd1_afbc_vd_cfmt_w;
130 uint32_t vd1_afbc_vd_cfmt_h;
131 uint32_t vd1_afbc_mif_hor_scope;
132 uint32_t vd1_afbc_mif_ver_scope;
133 uint32_t vd1_afbc_size_out;
134 uint32_t vd1_afbc_pixel_hor_scope;
135 uint32_t vd1_afbc_pixel_ver_scope;
136 uint32_t vd1_afbc_size_in;
137 uint32_t vpp_pic_in_height;
138 uint32_t vpp_postblend_vd1_h_start_end;
139 uint32_t vpp_postblend_vd1_v_start_end;
140 uint32_t vpp_hsc_region12_startp;
141 uint32_t vpp_hsc_region34_startp;
142 uint32_t vpp_hsc_region4_endp;
143 uint32_t vpp_hsc_start_phase_step;
144 uint32_t vpp_hsc_region1_phase_slope;
145 uint32_t vpp_hsc_region3_phase_slope;
146 uint32_t vpp_line_in_length;
147 uint32_t vpp_preblend_h_size;
148 uint32_t vpp_vsc_region12_startp;
149 uint32_t vpp_vsc_region34_startp;
150 uint32_t vpp_vsc_region4_endp;
151 uint32_t vpp_vsc_start_phase_step;
152 uint32_t vpp_vsc_ini_phase;
153 uint32_t vpp_vsc_phase_ctrl;
154 uint32_t vpp_hsc_phase_ctrl;
155 uint32_t vpp_blend_vd2_h_start_end;
156 uint32_t vpp_blend_vd2_v_start_end;
157 } viu;
158
159 struct {
160 unsigned int current_mode;
161 bool hdmi_repeat;
162 bool venc_repeat;
163 bool hdmi_use_enci;
164 } venc;
165
166 struct {
167 dma_addr_t addr_dma;
168 uint32_t *addr;
169 unsigned int offset;
170 } rdma;
171
172 struct {
173 struct meson_afbcd_ops *ops;
174 u64 modifier;
175 u32 format;
176 } afbcd;
177 };
178
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
Switch to a managed drm device to cleanup some error handling
and make future work easier.
Fix dereference of NULL in meson_drv_bind_master by removing
drm_dev_put(drm) before meson_encoder_*_remove and
component_unbind_all where drm is dereferenced.
Co-developed by Linux Verification Center (linuxtesting.org).
Cc: stable@vger.kernel.org
Fixes: 6a044642988b ("drm/meson: fix unbind path if HDMI fails to bind")
Signed-off-by: Anastasia Belova <abelova@astralinux.ru>
---
v2: fix commit message and add Cc: stable@vger.kernel.org
v3: cleanup error paths
v4: fix build errors
drivers/gpu/drm/meson/meson_crtc.c | 10 +--
drivers/gpu/drm/meson/meson_drv.c | 93 ++++++++++------------
drivers/gpu/drm/meson/meson_drv.h | 3 +-
drivers/gpu/drm/meson/meson_encoder_cvbs.c | 8 +-
drivers/gpu/drm/meson/meson_encoder_dsi.c | 2 +-
drivers/gpu/drm/meson/meson_encoder_hdmi.c | 4 +-
drivers/gpu/drm/meson/meson_overlay.c | 8 +-
drivers/gpu/drm/meson/meson_plane.c | 10 +--
8 files changed, 63 insertions(+), 75 deletions(-)
diff --git a/drivers/gpu/drm/meson/meson_crtc.c b/drivers/gpu/drm/meson/meson_crtc.c
index d70616da8ce2..e1c0bf3baeea 100644
--- a/drivers/gpu/drm/meson/meson_crtc.c
+++ b/drivers/gpu/drm/meson/meson_crtc.c
@@ -662,13 +662,13 @@ void meson_crtc_irq(struct meson_drm *priv)
drm_crtc_handle_vblank(priv->crtc);
- spin_lock_irqsave(&priv->drm->event_lock, flags);
+ spin_lock_irqsave(&priv->drm.event_lock, flags);
if (meson_crtc->event) {
drm_crtc_send_vblank_event(priv->crtc, meson_crtc->event);
drm_crtc_vblank_put(priv->crtc);
meson_crtc->event = NULL;
}
- spin_unlock_irqrestore(&priv->drm->event_lock, flags);
+ spin_unlock_irqrestore(&priv->drm.event_lock, flags);
}
int meson_crtc_create(struct meson_drm *priv)
@@ -677,18 +677,18 @@ int meson_crtc_create(struct meson_drm *priv)
struct drm_crtc *crtc;
int ret;
- meson_crtc = devm_kzalloc(priv->drm->dev, sizeof(*meson_crtc),
+ meson_crtc = devm_kzalloc(priv->drm.dev, sizeof(*meson_crtc),
GFP_KERNEL);
if (!meson_crtc)
return -ENOMEM;
meson_crtc->priv = priv;
crtc = &meson_crtc->base;
- ret = drm_crtc_init_with_planes(priv->drm, crtc,
+ ret = drm_crtc_init_with_planes(&priv->drm, crtc,
priv->primary_plane, NULL,
&meson_crtc_funcs, "meson_crtc");
if (ret) {
- dev_err(priv->drm->dev, "Failed to init CRTC\n");
+ dev_err(priv->drm.dev, "Failed to init CRTC\n");
return ret;
}
diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c
index 4bd0baa2a4f5..dd87c6b61e9e 100644
--- a/drivers/gpu/drm/meson/meson_drv.c
+++ b/drivers/gpu/drm/meson/meson_drv.c
@@ -182,7 +182,6 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
struct platform_device *pdev = to_platform_device(dev);
const struct meson_drm_match_data *match;
struct meson_drm *priv;
- struct drm_device *drm;
struct resource *res;
void __iomem *regs;
int ret, i;
@@ -197,58 +196,49 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
if (!match)
return -ENODEV;
- drm = drm_dev_alloc(&meson_driver, dev);
- if (IS_ERR(drm))
- return PTR_ERR(drm);
+ priv = devm_drm_dev_alloc(dev, &meson_driver,
+ struct meson_drm, drm);
- priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
- if (!priv) {
- ret = -ENOMEM;
- goto free_drm;
- }
- drm->dev_private = priv;
- priv->drm = drm;
+ if (IS_ERR(priv))
+ return PTR_ERR(priv);
+
+ priv->drm.dev_private = priv;
priv->dev = dev;
priv->compat = match->compat;
priv->afbcd.ops = match->afbcd_ops;
regs = devm_platform_ioremap_resource_byname(pdev, "vpu");
if (IS_ERR(regs)) {
- ret = PTR_ERR(regs);
- goto free_drm;
+ return PTR_ERR(regs);
}
priv->io_base = regs;
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "hhi");
if (!res) {
- ret = -EINVAL;
- goto free_drm;
+ return -EINVAL;
}
/* Simply ioremap since it may be a shared register zone */
regs = devm_ioremap(dev, res->start, resource_size(res));
if (!regs) {
- ret = -EADDRNOTAVAIL;
- goto free_drm;
+ return -EADDRNOTAVAIL;
}
priv->hhi = devm_regmap_init_mmio(dev, regs,
&meson_regmap_config);
if (IS_ERR(priv->hhi)) {
dev_err(&pdev->dev, "Couldn't create the HHI regmap\n");
- ret = PTR_ERR(priv->hhi);
- goto free_drm;
+ return PTR_ERR(priv->hhi);
}
priv->canvas = meson_canvas_get(dev);
if (IS_ERR(priv->canvas)) {
- ret = PTR_ERR(priv->canvas);
- goto free_drm;
+ return PTR_ERR(priv->canvas);
}
ret = meson_canvas_alloc(priv->canvas, &priv->canvas_id_osd1);
if (ret)
- goto free_drm;
+ return ret;
ret = meson_canvas_alloc(priv->canvas, &priv->canvas_id_vd1_0);
if (ret)
goto free_canvas_osd1;
@@ -261,7 +251,7 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
priv->vsync_irq = platform_get_irq(pdev, 0);
- ret = drm_vblank_init(drm, 1);
+ ret = drm_vblank_init(&priv->drm, 1);
if (ret)
goto free_canvas_vd1_2;
@@ -281,13 +271,13 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
if (ret)
goto free_canvas_vd1_2;
- ret = drmm_mode_config_init(drm);
+ ret = drmm_mode_config_init(&priv->drm);
if (ret)
goto free_canvas_vd1_2;
- drm->mode_config.max_width = 3840;
- drm->mode_config.max_height = 2160;
- drm->mode_config.funcs = &meson_mode_config_funcs;
- drm->mode_config.helper_private = &meson_mode_config_helpers;
+ priv->drm.mode_config.max_width = 3840;
+ priv->drm.mode_config.max_height = 2160;
+ priv->drm.mode_config.funcs = &meson_mode_config_funcs;
+ priv->drm.mode_config.helper_private = &meson_mode_config_helpers;
/* Hardware Initialization */
@@ -308,9 +298,9 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
goto exit_afbcd;
if (has_components) {
- ret = component_bind_all(dev, drm);
+ ret = component_bind_all(dev, &priv->drm);
if (ret) {
- dev_err(drm->dev, "Couldn't bind all components\n");
+ dev_err(priv->drm.dev, "Couldn't bind all components\n");
/* Do not try to unbind */
has_components = false;
goto exit_afbcd;
@@ -319,46 +309,49 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
ret = meson_encoder_hdmi_probe(priv);
if (ret)
- goto exit_afbcd;
+ goto unbind_components;
if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A)) {
ret = meson_encoder_dsi_probe(priv);
if (ret)
- goto exit_afbcd;
+ goto unbind_components;
}
ret = meson_plane_create(priv);
if (ret)
- goto exit_afbcd;
+ goto unbind_components;
ret = meson_overlay_create(priv);
if (ret)
- goto exit_afbcd;
+ goto unbind_components;
ret = meson_crtc_create(priv);
if (ret)
- goto exit_afbcd;
+ goto unbind_components;
- ret = request_irq(priv->vsync_irq, meson_irq, 0, drm->driver->name, drm);
+ ret = request_irq(priv->vsync_irq, meson_irq, 0, priv->drm.driver->name, &priv->drm);
if (ret)
- goto exit_afbcd;
+ goto unbind_components;
- drm_mode_config_reset(drm);
+ drm_mode_config_reset(&priv->drm);
- drm_kms_helper_poll_init(drm);
+ drm_kms_helper_poll_init(&priv->drm);
platform_set_drvdata(pdev, priv);
- ret = drm_dev_register(drm, 0);
+ ret = drm_dev_register(&priv->drm, 0);
if (ret)
goto uninstall_irq;
- drm_fbdev_dma_setup(drm, 32);
+ drm_fbdev_dma_setup(&priv->drm, 32);
return 0;
uninstall_irq:
- free_irq(priv->vsync_irq, drm);
+ free_irq(priv->vsync_irq, &priv->drm);
+unbind_components:
+ if (has_components)
+ component_unbind_all(dev, &priv->drm);
exit_afbcd:
if (priv->afbcd.ops)
priv->afbcd.ops->exit(priv);
@@ -370,16 +363,11 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
meson_canvas_free(priv->canvas, priv->canvas_id_vd1_0);
free_canvas_osd1:
meson_canvas_free(priv->canvas, priv->canvas_id_osd1);
-free_drm:
- drm_dev_put(drm);
meson_encoder_dsi_remove(priv);
meson_encoder_hdmi_remove(priv);
meson_encoder_cvbs_remove(priv);
- if (has_components)
- component_unbind_all(dev, drm);
-
return ret;
}
@@ -391,7 +379,7 @@ static int meson_drv_bind(struct device *dev)
static void meson_drv_unbind(struct device *dev)
{
struct meson_drm *priv = dev_get_drvdata(dev);
- struct drm_device *drm = priv->drm;
+ struct drm_device *drm = &priv->drm;
if (priv->canvas) {
meson_canvas_free(priv->canvas, priv->canvas_id_osd1);
@@ -404,7 +392,6 @@ static void meson_drv_unbind(struct device *dev)
drm_kms_helper_poll_fini(drm);
drm_atomic_helper_shutdown(drm);
free_irq(priv->vsync_irq, drm);
- drm_dev_put(drm);
meson_encoder_dsi_remove(priv);
meson_encoder_hdmi_remove(priv);
@@ -428,7 +415,7 @@ static int __maybe_unused meson_drv_pm_suspend(struct device *dev)
if (!priv)
return 0;
- return drm_mode_config_helper_suspend(priv->drm);
+ return drm_mode_config_helper_suspend(&priv->drm);
}
static int __maybe_unused meson_drv_pm_resume(struct device *dev)
@@ -445,7 +432,7 @@ static int __maybe_unused meson_drv_pm_resume(struct device *dev)
if (priv->afbcd.ops)
priv->afbcd.ops->init(priv);
- return drm_mode_config_helper_resume(priv->drm);
+ return drm_mode_config_helper_resume(&priv->drm);
}
static void meson_drv_shutdown(struct platform_device *pdev)
@@ -455,8 +442,8 @@ static void meson_drv_shutdown(struct platform_device *pdev)
if (!priv)
return;
- drm_kms_helper_poll_fini(priv->drm);
- drm_atomic_helper_shutdown(priv->drm);
+ drm_kms_helper_poll_fini(&priv->drm);
+ drm_atomic_helper_shutdown(&priv->drm);
}
/*
diff --git a/drivers/gpu/drm/meson/meson_drv.h b/drivers/gpu/drm/meson/meson_drv.h
index 3f9345c14f31..45554c701322 100644
--- a/drivers/gpu/drm/meson/meson_drv.h
+++ b/drivers/gpu/drm/meson/meson_drv.h
@@ -8,6 +8,7 @@
#define __MESON_DRV_H
#include <linux/device.h>
+#include <drm/drm_device.h>
#include <linux/of.h>
#include <linux/regmap.h>
@@ -53,7 +54,7 @@ struct meson_drm {
u8 canvas_id_vd1_1;
u8 canvas_id_vd1_2;
- struct drm_device *drm;
+ struct drm_device drm;
struct drm_crtc *crtc;
struct drm_plane *primary_plane;
struct drm_plane *overlay_plane;
diff --git a/drivers/gpu/drm/meson/meson_encoder_cvbs.c b/drivers/gpu/drm/meson/meson_encoder_cvbs.c
index d1191de855d9..ddca22c8c1ff 100644
--- a/drivers/gpu/drm/meson/meson_encoder_cvbs.c
+++ b/drivers/gpu/drm/meson/meson_encoder_cvbs.c
@@ -104,7 +104,7 @@ static int meson_encoder_cvbs_get_modes(struct drm_bridge *bridge,
for (i = 0; i < MESON_CVBS_MODES_COUNT; ++i) {
struct meson_cvbs_mode *meson_mode = &meson_cvbs_modes[i];
- mode = drm_mode_duplicate(priv->drm, &meson_mode->mode);
+ mode = drm_mode_duplicate(&priv->drm, &meson_mode->mode);
if (!mode) {
dev_err(priv->dev, "Failed to create a new display mode\n");
return 0;
@@ -221,7 +221,7 @@ static const struct drm_bridge_funcs meson_encoder_cvbs_bridge_funcs = {
int meson_encoder_cvbs_probe(struct meson_drm *priv)
{
- struct drm_device *drm = priv->drm;
+ struct drm_device *drm = &priv->drm;
struct meson_encoder_cvbs *meson_encoder_cvbs;
struct drm_connector *connector;
struct device_node *remote;
@@ -256,7 +256,7 @@ int meson_encoder_cvbs_probe(struct meson_drm *priv)
meson_encoder_cvbs->priv = priv;
/* Encoder */
- ret = drm_simple_encoder_init(priv->drm, &meson_encoder_cvbs->encoder,
+ ret = drm_simple_encoder_init(&priv->drm, &meson_encoder_cvbs->encoder,
DRM_MODE_ENCODER_TVDAC);
if (ret)
return dev_err_probe(priv->dev, ret,
@@ -273,7 +273,7 @@ int meson_encoder_cvbs_probe(struct meson_drm *priv)
}
/* Initialize & attach Bridge Connector */
- connector = drm_bridge_connector_init(priv->drm, &meson_encoder_cvbs->encoder);
+ connector = drm_bridge_connector_init(&priv->drm, &meson_encoder_cvbs->encoder);
if (IS_ERR(connector))
return dev_err_probe(priv->dev, PTR_ERR(connector),
"Unable to create CVBS bridge connector\n");
diff --git a/drivers/gpu/drm/meson/meson_encoder_dsi.c b/drivers/gpu/drm/meson/meson_encoder_dsi.c
index 7816902f5907..03bb12c69863 100644
--- a/drivers/gpu/drm/meson/meson_encoder_dsi.c
+++ b/drivers/gpu/drm/meson/meson_encoder_dsi.c
@@ -132,7 +132,7 @@ int meson_encoder_dsi_probe(struct meson_drm *priv)
meson_encoder_dsi->priv = priv;
/* Encoder */
- ret = drm_simple_encoder_init(priv->drm, &meson_encoder_dsi->encoder,
+ ret = drm_simple_encoder_init(&priv->drm, &meson_encoder_dsi->encoder,
DRM_MODE_ENCODER_DSI);
if (ret)
return dev_err_probe(priv->dev, ret,
diff --git a/drivers/gpu/drm/meson/meson_encoder_hdmi.c b/drivers/gpu/drm/meson/meson_encoder_hdmi.c
index 0593a1cde906..4465d987f85b 100644
--- a/drivers/gpu/drm/meson/meson_encoder_hdmi.c
+++ b/drivers/gpu/drm/meson/meson_encoder_hdmi.c
@@ -402,7 +402,7 @@ int meson_encoder_hdmi_probe(struct meson_drm *priv)
meson_encoder_hdmi->priv = priv;
/* Encoder */
- ret = drm_simple_encoder_init(priv->drm, &meson_encoder_hdmi->encoder,
+ ret = drm_simple_encoder_init(&priv->drm, &meson_encoder_hdmi->encoder,
DRM_MODE_ENCODER_TMDS);
if (ret) {
dev_err_probe(priv->dev, ret, "Failed to init HDMI encoder\n");
@@ -420,7 +420,7 @@ int meson_encoder_hdmi_probe(struct meson_drm *priv)
}
/* Initialize & attach Bridge Connector */
- meson_encoder_hdmi->connector = drm_bridge_connector_init(priv->drm,
+ meson_encoder_hdmi->connector = drm_bridge_connector_init(&priv->drm,
&meson_encoder_hdmi->encoder);
if (IS_ERR(meson_encoder_hdmi->connector)) {
ret = dev_err_probe(priv->dev,
diff --git a/drivers/gpu/drm/meson/meson_overlay.c b/drivers/gpu/drm/meson/meson_overlay.c
index 7f98de38842b..60ee7f758723 100644
--- a/drivers/gpu/drm/meson/meson_overlay.c
+++ b/drivers/gpu/drm/meson/meson_overlay.c
@@ -484,7 +484,7 @@ static void meson_overlay_atomic_update(struct drm_plane *plane,
interlace_mode = new_state->crtc->mode.flags & DRM_MODE_FLAG_INTERLACE;
- spin_lock_irqsave(&priv->drm->event_lock, flags);
+ spin_lock_irqsave(&priv->drm.event_lock, flags);
if ((fb->modifier & DRM_FORMAT_MOD_AMLOGIC_FBC(0, 0)) ==
DRM_FORMAT_MOD_AMLOGIC_FBC(0, 0)) {
@@ -717,7 +717,7 @@ static void meson_overlay_atomic_update(struct drm_plane *plane,
priv->viu.vd1_enabled = true;
- spin_unlock_irqrestore(&priv->drm->event_lock, flags);
+ spin_unlock_irqrestore(&priv->drm.event_lock, flags);
DRM_DEBUG_DRIVER("\n");
}
@@ -838,7 +838,7 @@ int meson_overlay_create(struct meson_drm *priv)
DRM_DEBUG_DRIVER("\n");
- meson_overlay = devm_kzalloc(priv->drm->dev, sizeof(*meson_overlay),
+ meson_overlay = devm_kzalloc(priv->drm.dev, sizeof(*meson_overlay),
GFP_KERNEL);
if (!meson_overlay)
return -ENOMEM;
@@ -846,7 +846,7 @@ int meson_overlay_create(struct meson_drm *priv)
meson_overlay->priv = priv;
plane = &meson_overlay->base;
- drm_universal_plane_init(priv->drm, plane, 0xFF,
+ drm_universal_plane_init(&priv->drm, plane, 0xFF,
&meson_overlay_funcs,
supported_drm_formats,
ARRAY_SIZE(supported_drm_formats),
diff --git a/drivers/gpu/drm/meson/meson_plane.c b/drivers/gpu/drm/meson/meson_plane.c
index b43ac61201f3..13be94309bf4 100644
--- a/drivers/gpu/drm/meson/meson_plane.c
+++ b/drivers/gpu/drm/meson/meson_plane.c
@@ -157,7 +157,7 @@ static void meson_plane_atomic_update(struct drm_plane *plane,
* Update Buffer
* Enable Plane
*/
- spin_lock_irqsave(&priv->drm->event_lock, flags);
+ spin_lock_irqsave(&priv->drm.event_lock, flags);
/* Check if AFBC decoder is required for this buffer */
if ((meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXM) ||
@@ -393,7 +393,7 @@ static void meson_plane_atomic_update(struct drm_plane *plane,
priv->viu.osd1_enabled = true;
- spin_unlock_irqrestore(&priv->drm->event_lock, flags);
+ spin_unlock_irqrestore(&priv->drm.event_lock, flags);
}
static void meson_plane_atomic_disable(struct drm_plane *plane,
@@ -536,7 +536,7 @@ int meson_plane_create(struct meson_drm *priv)
const uint64_t *format_modifiers = format_modifiers_default;
int ret;
- meson_plane = devm_kzalloc(priv->drm->dev, sizeof(*meson_plane),
+ meson_plane = devm_kzalloc(priv->drm.dev, sizeof(*meson_plane),
GFP_KERNEL);
if (!meson_plane)
return -ENOMEM;
@@ -549,14 +549,14 @@ int meson_plane_create(struct meson_drm *priv)
else if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A))
format_modifiers = format_modifiers_afbc_g12a;
- ret = drm_universal_plane_init(priv->drm, plane, 0xFF,
+ ret = drm_universal_plane_init(&priv->drm, plane, 0xFF,
&meson_plane_funcs,
supported_drm_formats,
ARRAY_SIZE(supported_drm_formats),
format_modifiers,
DRM_PLANE_TYPE_PRIMARY, "meson_primary_plane");
if (ret) {
- devm_kfree(priv->drm->dev, meson_plane);
+ devm_kfree(priv->drm.dev, meson_plane);
return ret;
}
--
2.43.0Just a friendly reminder.
09/10/24 16:15, Anastasia Belova пишет:
> Switch to a managed drm device to cleanup some error handling
> and make future work easier.
>
> Fix dereference of NULL in meson_drv_bind_master by removing
> drm_dev_put(drm) before meson_encoder_*_remove and
> component_unbind_all where drm is dereferenced.
>
> Co-developed by Linux Verification Center (linuxtesting.org).
>
> Cc: stable@vger.kernel.org
> Fixes: 6a044642988b ("drm/meson: fix unbind path if HDMI fails to bind")
> Signed-off-by: Anastasia Belova <abelova@astralinux.ru>
> ---
> v2: fix commit message and add Cc: stable@vger.kernel.org
> v3: cleanup error paths
> v4: fix build errors
> drivers/gpu/drm/meson/meson_crtc.c | 10 +--
> drivers/gpu/drm/meson/meson_drv.c | 93 ++++++++++------------
> drivers/gpu/drm/meson/meson_drv.h | 3 +-
> drivers/gpu/drm/meson/meson_encoder_cvbs.c | 8 +-
> drivers/gpu/drm/meson/meson_encoder_dsi.c | 2 +-
> drivers/gpu/drm/meson/meson_encoder_hdmi.c | 4 +-
> drivers/gpu/drm/meson/meson_overlay.c | 8 +-
> drivers/gpu/drm/meson/meson_plane.c | 10 +--
> 8 files changed, 63 insertions(+), 75 deletions(-)
>
> diff --git a/drivers/gpu/drm/meson/meson_crtc.c b/drivers/gpu/drm/meson/meson_crtc.c
> index d70616da8ce2..e1c0bf3baeea 100644
> --- a/drivers/gpu/drm/meson/meson_crtc.c
> +++ b/drivers/gpu/drm/meson/meson_crtc.c
> @@ -662,13 +662,13 @@ void meson_crtc_irq(struct meson_drm *priv)
>
> drm_crtc_handle_vblank(priv->crtc);
>
> - spin_lock_irqsave(&priv->drm->event_lock, flags);
> + spin_lock_irqsave(&priv->drm.event_lock, flags);
> if (meson_crtc->event) {
> drm_crtc_send_vblank_event(priv->crtc, meson_crtc->event);
> drm_crtc_vblank_put(priv->crtc);
> meson_crtc->event = NULL;
> }
> - spin_unlock_irqrestore(&priv->drm->event_lock, flags);
> + spin_unlock_irqrestore(&priv->drm.event_lock, flags);
> }
>
> int meson_crtc_create(struct meson_drm *priv)
> @@ -677,18 +677,18 @@ int meson_crtc_create(struct meson_drm *priv)
> struct drm_crtc *crtc;
> int ret;
>
> - meson_crtc = devm_kzalloc(priv->drm->dev, sizeof(*meson_crtc),
> + meson_crtc = devm_kzalloc(priv->drm.dev, sizeof(*meson_crtc),
> GFP_KERNEL);
> if (!meson_crtc)
> return -ENOMEM;
>
> meson_crtc->priv = priv;
> crtc = &meson_crtc->base;
> - ret = drm_crtc_init_with_planes(priv->drm, crtc,
> + ret = drm_crtc_init_with_planes(&priv->drm, crtc,
> priv->primary_plane, NULL,
> &meson_crtc_funcs, "meson_crtc");
> if (ret) {
> - dev_err(priv->drm->dev, "Failed to init CRTC\n");
> + dev_err(priv->drm.dev, "Failed to init CRTC\n");
> return ret;
> }
>
> diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c
> index 4bd0baa2a4f5..dd87c6b61e9e 100644
> --- a/drivers/gpu/drm/meson/meson_drv.c
> +++ b/drivers/gpu/drm/meson/meson_drv.c
> @@ -182,7 +182,6 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
> struct platform_device *pdev = to_platform_device(dev);
> const struct meson_drm_match_data *match;
> struct meson_drm *priv;
> - struct drm_device *drm;
> struct resource *res;
> void __iomem *regs;
> int ret, i;
> @@ -197,58 +196,49 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
> if (!match)
> return -ENODEV;
>
> - drm = drm_dev_alloc(&meson_driver, dev);
> - if (IS_ERR(drm))
> - return PTR_ERR(drm);
> + priv = devm_drm_dev_alloc(dev, &meson_driver,
> + struct meson_drm, drm);
>
> - priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
> - if (!priv) {
> - ret = -ENOMEM;
> - goto free_drm;
> - }
> - drm->dev_private = priv;
> - priv->drm = drm;
> + if (IS_ERR(priv))
> + return PTR_ERR(priv);
> +
> + priv->drm.dev_private = priv;
> priv->dev = dev;
> priv->compat = match->compat;
> priv->afbcd.ops = match->afbcd_ops;
>
> regs = devm_platform_ioremap_resource_byname(pdev, "vpu");
> if (IS_ERR(regs)) {
> - ret = PTR_ERR(regs);
> - goto free_drm;
> + return PTR_ERR(regs);
> }
>
> priv->io_base = regs;
>
> res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "hhi");
> if (!res) {
> - ret = -EINVAL;
> - goto free_drm;
> + return -EINVAL;
> }
> /* Simply ioremap since it may be a shared register zone */
> regs = devm_ioremap(dev, res->start, resource_size(res));
> if (!regs) {
> - ret = -EADDRNOTAVAIL;
> - goto free_drm;
> + return -EADDRNOTAVAIL;
> }
>
> priv->hhi = devm_regmap_init_mmio(dev, regs,
> &meson_regmap_config);
> if (IS_ERR(priv->hhi)) {
> dev_err(&pdev->dev, "Couldn't create the HHI regmap\n");
> - ret = PTR_ERR(priv->hhi);
> - goto free_drm;
> + return PTR_ERR(priv->hhi);
> }
>
> priv->canvas = meson_canvas_get(dev);
> if (IS_ERR(priv->canvas)) {
> - ret = PTR_ERR(priv->canvas);
> - goto free_drm;
> + return PTR_ERR(priv->canvas);
> }
>
> ret = meson_canvas_alloc(priv->canvas, &priv->canvas_id_osd1);
> if (ret)
> - goto free_drm;
> + return ret;
> ret = meson_canvas_alloc(priv->canvas, &priv->canvas_id_vd1_0);
> if (ret)
> goto free_canvas_osd1;
> @@ -261,7 +251,7 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
>
> priv->vsync_irq = platform_get_irq(pdev, 0);
>
> - ret = drm_vblank_init(drm, 1);
> + ret = drm_vblank_init(&priv->drm, 1);
> if (ret)
> goto free_canvas_vd1_2;
>
> @@ -281,13 +271,13 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
> if (ret)
> goto free_canvas_vd1_2;
>
> - ret = drmm_mode_config_init(drm);
> + ret = drmm_mode_config_init(&priv->drm);
> if (ret)
> goto free_canvas_vd1_2;
> - drm->mode_config.max_width = 3840;
> - drm->mode_config.max_height = 2160;
> - drm->mode_config.funcs = &meson_mode_config_funcs;
> - drm->mode_config.helper_private = &meson_mode_config_helpers;
> + priv->drm.mode_config.max_width = 3840;
> + priv->drm.mode_config.max_height = 2160;
> + priv->drm.mode_config.funcs = &meson_mode_config_funcs;
> + priv->drm.mode_config.helper_private = &meson_mode_config_helpers;
>
> /* Hardware Initialization */
>
> @@ -308,9 +298,9 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
> goto exit_afbcd;
>
> if (has_components) {
> - ret = component_bind_all(dev, drm);
> + ret = component_bind_all(dev, &priv->drm);
> if (ret) {
> - dev_err(drm->dev, "Couldn't bind all components\n");
> + dev_err(priv->drm.dev, "Couldn't bind all components\n");
> /* Do not try to unbind */
> has_components = false;
> goto exit_afbcd;
> @@ -319,46 +309,49 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
>
> ret = meson_encoder_hdmi_probe(priv);
> if (ret)
> - goto exit_afbcd;
> + goto unbind_components;
>
> if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A)) {
> ret = meson_encoder_dsi_probe(priv);
> if (ret)
> - goto exit_afbcd;
> + goto unbind_components;
> }
>
> ret = meson_plane_create(priv);
> if (ret)
> - goto exit_afbcd;
> + goto unbind_components;
>
> ret = meson_overlay_create(priv);
> if (ret)
> - goto exit_afbcd;
> + goto unbind_components;
>
> ret = meson_crtc_create(priv);
> if (ret)
> - goto exit_afbcd;
> + goto unbind_components;
>
> - ret = request_irq(priv->vsync_irq, meson_irq, 0, drm->driver->name, drm);
> + ret = request_irq(priv->vsync_irq, meson_irq, 0, priv->drm.driver->name, &priv->drm);
> if (ret)
> - goto exit_afbcd;
> + goto unbind_components;
>
> - drm_mode_config_reset(drm);
> + drm_mode_config_reset(&priv->drm);
>
> - drm_kms_helper_poll_init(drm);
> + drm_kms_helper_poll_init(&priv->drm);
>
> platform_set_drvdata(pdev, priv);
>
> - ret = drm_dev_register(drm, 0);
> + ret = drm_dev_register(&priv->drm, 0);
> if (ret)
> goto uninstall_irq;
>
> - drm_fbdev_dma_setup(drm, 32);
> + drm_fbdev_dma_setup(&priv->drm, 32);
>
> return 0;
>
> uninstall_irq:
> - free_irq(priv->vsync_irq, drm);
> + free_irq(priv->vsync_irq, &priv->drm);
> +unbind_components:
> + if (has_components)
> + component_unbind_all(dev, &priv->drm);
> exit_afbcd:
> if (priv->afbcd.ops)
> priv->afbcd.ops->exit(priv);
> @@ -370,16 +363,11 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
> meson_canvas_free(priv->canvas, priv->canvas_id_vd1_0);
> free_canvas_osd1:
> meson_canvas_free(priv->canvas, priv->canvas_id_osd1);
> -free_drm:
> - drm_dev_put(drm);
>
> meson_encoder_dsi_remove(priv);
> meson_encoder_hdmi_remove(priv);
> meson_encoder_cvbs_remove(priv);
>
> - if (has_components)
> - component_unbind_all(dev, drm);
> -
> return ret;
> }
>
> @@ -391,7 +379,7 @@ static int meson_drv_bind(struct device *dev)
> static void meson_drv_unbind(struct device *dev)
> {
> struct meson_drm *priv = dev_get_drvdata(dev);
> - struct drm_device *drm = priv->drm;
> + struct drm_device *drm = &priv->drm;
>
> if (priv->canvas) {
> meson_canvas_free(priv->canvas, priv->canvas_id_osd1);
> @@ -404,7 +392,6 @@ static void meson_drv_unbind(struct device *dev)
> drm_kms_helper_poll_fini(drm);
> drm_atomic_helper_shutdown(drm);
> free_irq(priv->vsync_irq, drm);
> - drm_dev_put(drm);
>
> meson_encoder_dsi_remove(priv);
> meson_encoder_hdmi_remove(priv);
> @@ -428,7 +415,7 @@ static int __maybe_unused meson_drv_pm_suspend(struct device *dev)
> if (!priv)
> return 0;
>
> - return drm_mode_config_helper_suspend(priv->drm);
> + return drm_mode_config_helper_suspend(&priv->drm);
> }
>
> static int __maybe_unused meson_drv_pm_resume(struct device *dev)
> @@ -445,7 +432,7 @@ static int __maybe_unused meson_drv_pm_resume(struct device *dev)
> if (priv->afbcd.ops)
> priv->afbcd.ops->init(priv);
>
> - return drm_mode_config_helper_resume(priv->drm);
> + return drm_mode_config_helper_resume(&priv->drm);
> }
>
> static void meson_drv_shutdown(struct platform_device *pdev)
> @@ -455,8 +442,8 @@ static void meson_drv_shutdown(struct platform_device *pdev)
> if (!priv)
> return;
>
> - drm_kms_helper_poll_fini(priv->drm);
> - drm_atomic_helper_shutdown(priv->drm);
> + drm_kms_helper_poll_fini(&priv->drm);
> + drm_atomic_helper_shutdown(&priv->drm);
> }
>
> /*
> diff --git a/drivers/gpu/drm/meson/meson_drv.h b/drivers/gpu/drm/meson/meson_drv.h
> index 3f9345c14f31..45554c701322 100644
> --- a/drivers/gpu/drm/meson/meson_drv.h
> +++ b/drivers/gpu/drm/meson/meson_drv.h
> @@ -8,6 +8,7 @@
> #define __MESON_DRV_H
>
> #include <linux/device.h>
> +#include <drm/drm_device.h>
> #include <linux/of.h>
> #include <linux/regmap.h>
>
> @@ -53,7 +54,7 @@ struct meson_drm {
> u8 canvas_id_vd1_1;
> u8 canvas_id_vd1_2;
>
> - struct drm_device *drm;
> + struct drm_device drm;
> struct drm_crtc *crtc;
> struct drm_plane *primary_plane;
> struct drm_plane *overlay_plane;
> diff --git a/drivers/gpu/drm/meson/meson_encoder_cvbs.c b/drivers/gpu/drm/meson/meson_encoder_cvbs.c
> index d1191de855d9..ddca22c8c1ff 100644
> --- a/drivers/gpu/drm/meson/meson_encoder_cvbs.c
> +++ b/drivers/gpu/drm/meson/meson_encoder_cvbs.c
> @@ -104,7 +104,7 @@ static int meson_encoder_cvbs_get_modes(struct drm_bridge *bridge,
> for (i = 0; i < MESON_CVBS_MODES_COUNT; ++i) {
> struct meson_cvbs_mode *meson_mode = &meson_cvbs_modes[i];
>
> - mode = drm_mode_duplicate(priv->drm, &meson_mode->mode);
> + mode = drm_mode_duplicate(&priv->drm, &meson_mode->mode);
> if (!mode) {
> dev_err(priv->dev, "Failed to create a new display mode\n");
> return 0;
> @@ -221,7 +221,7 @@ static const struct drm_bridge_funcs meson_encoder_cvbs_bridge_funcs = {
>
> int meson_encoder_cvbs_probe(struct meson_drm *priv)
> {
> - struct drm_device *drm = priv->drm;
> + struct drm_device *drm = &priv->drm;
> struct meson_encoder_cvbs *meson_encoder_cvbs;
> struct drm_connector *connector;
> struct device_node *remote;
> @@ -256,7 +256,7 @@ int meson_encoder_cvbs_probe(struct meson_drm *priv)
> meson_encoder_cvbs->priv = priv;
>
> /* Encoder */
> - ret = drm_simple_encoder_init(priv->drm, &meson_encoder_cvbs->encoder,
> + ret = drm_simple_encoder_init(&priv->drm, &meson_encoder_cvbs->encoder,
> DRM_MODE_ENCODER_TVDAC);
> if (ret)
> return dev_err_probe(priv->dev, ret,
> @@ -273,7 +273,7 @@ int meson_encoder_cvbs_probe(struct meson_drm *priv)
> }
>
> /* Initialize & attach Bridge Connector */
> - connector = drm_bridge_connector_init(priv->drm, &meson_encoder_cvbs->encoder);
> + connector = drm_bridge_connector_init(&priv->drm, &meson_encoder_cvbs->encoder);
> if (IS_ERR(connector))
> return dev_err_probe(priv->dev, PTR_ERR(connector),
> "Unable to create CVBS bridge connector\n");
> diff --git a/drivers/gpu/drm/meson/meson_encoder_dsi.c b/drivers/gpu/drm/meson/meson_encoder_dsi.c
> index 7816902f5907..03bb12c69863 100644
> --- a/drivers/gpu/drm/meson/meson_encoder_dsi.c
> +++ b/drivers/gpu/drm/meson/meson_encoder_dsi.c
> @@ -132,7 +132,7 @@ int meson_encoder_dsi_probe(struct meson_drm *priv)
> meson_encoder_dsi->priv = priv;
>
> /* Encoder */
> - ret = drm_simple_encoder_init(priv->drm, &meson_encoder_dsi->encoder,
> + ret = drm_simple_encoder_init(&priv->drm, &meson_encoder_dsi->encoder,
> DRM_MODE_ENCODER_DSI);
> if (ret)
> return dev_err_probe(priv->dev, ret,
> diff --git a/drivers/gpu/drm/meson/meson_encoder_hdmi.c b/drivers/gpu/drm/meson/meson_encoder_hdmi.c
> index 0593a1cde906..4465d987f85b 100644
> --- a/drivers/gpu/drm/meson/meson_encoder_hdmi.c
> +++ b/drivers/gpu/drm/meson/meson_encoder_hdmi.c
> @@ -402,7 +402,7 @@ int meson_encoder_hdmi_probe(struct meson_drm *priv)
> meson_encoder_hdmi->priv = priv;
>
> /* Encoder */
> - ret = drm_simple_encoder_init(priv->drm, &meson_encoder_hdmi->encoder,
> + ret = drm_simple_encoder_init(&priv->drm, &meson_encoder_hdmi->encoder,
> DRM_MODE_ENCODER_TMDS);
> if (ret) {
> dev_err_probe(priv->dev, ret, "Failed to init HDMI encoder\n");
> @@ -420,7 +420,7 @@ int meson_encoder_hdmi_probe(struct meson_drm *priv)
> }
>
> /* Initialize & attach Bridge Connector */
> - meson_encoder_hdmi->connector = drm_bridge_connector_init(priv->drm,
> + meson_encoder_hdmi->connector = drm_bridge_connector_init(&priv->drm,
> &meson_encoder_hdmi->encoder);
> if (IS_ERR(meson_encoder_hdmi->connector)) {
> ret = dev_err_probe(priv->dev,
> diff --git a/drivers/gpu/drm/meson/meson_overlay.c b/drivers/gpu/drm/meson/meson_overlay.c
> index 7f98de38842b..60ee7f758723 100644
> --- a/drivers/gpu/drm/meson/meson_overlay.c
> +++ b/drivers/gpu/drm/meson/meson_overlay.c
> @@ -484,7 +484,7 @@ static void meson_overlay_atomic_update(struct drm_plane *plane,
>
> interlace_mode = new_state->crtc->mode.flags & DRM_MODE_FLAG_INTERLACE;
>
> - spin_lock_irqsave(&priv->drm->event_lock, flags);
> + spin_lock_irqsave(&priv->drm.event_lock, flags);
>
> if ((fb->modifier & DRM_FORMAT_MOD_AMLOGIC_FBC(0, 0)) ==
> DRM_FORMAT_MOD_AMLOGIC_FBC(0, 0)) {
> @@ -717,7 +717,7 @@ static void meson_overlay_atomic_update(struct drm_plane *plane,
>
> priv->viu.vd1_enabled = true;
>
> - spin_unlock_irqrestore(&priv->drm->event_lock, flags);
> + spin_unlock_irqrestore(&priv->drm.event_lock, flags);
>
> DRM_DEBUG_DRIVER("\n");
> }
> @@ -838,7 +838,7 @@ int meson_overlay_create(struct meson_drm *priv)
>
> DRM_DEBUG_DRIVER("\n");
>
> - meson_overlay = devm_kzalloc(priv->drm->dev, sizeof(*meson_overlay),
> + meson_overlay = devm_kzalloc(priv->drm.dev, sizeof(*meson_overlay),
> GFP_KERNEL);
> if (!meson_overlay)
> return -ENOMEM;
> @@ -846,7 +846,7 @@ int meson_overlay_create(struct meson_drm *priv)
> meson_overlay->priv = priv;
> plane = &meson_overlay->base;
>
> - drm_universal_plane_init(priv->drm, plane, 0xFF,
> + drm_universal_plane_init(&priv->drm, plane, 0xFF,
> &meson_overlay_funcs,
> supported_drm_formats,
> ARRAY_SIZE(supported_drm_formats),
> diff --git a/drivers/gpu/drm/meson/meson_plane.c b/drivers/gpu/drm/meson/meson_plane.c
> index b43ac61201f3..13be94309bf4 100644
> --- a/drivers/gpu/drm/meson/meson_plane.c
> +++ b/drivers/gpu/drm/meson/meson_plane.c
> @@ -157,7 +157,7 @@ static void meson_plane_atomic_update(struct drm_plane *plane,
> * Update Buffer
> * Enable Plane
> */
> - spin_lock_irqsave(&priv->drm->event_lock, flags);
> + spin_lock_irqsave(&priv->drm.event_lock, flags);
>
> /* Check if AFBC decoder is required for this buffer */
> if ((meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXM) ||
> @@ -393,7 +393,7 @@ static void meson_plane_atomic_update(struct drm_plane *plane,
>
> priv->viu.osd1_enabled = true;
>
> - spin_unlock_irqrestore(&priv->drm->event_lock, flags);
> + spin_unlock_irqrestore(&priv->drm.event_lock, flags);
> }
>
> static void meson_plane_atomic_disable(struct drm_plane *plane,
> @@ -536,7 +536,7 @@ int meson_plane_create(struct meson_drm *priv)
> const uint64_t *format_modifiers = format_modifiers_default;
> int ret;
>
> - meson_plane = devm_kzalloc(priv->drm->dev, sizeof(*meson_plane),
> + meson_plane = devm_kzalloc(priv->drm.dev, sizeof(*meson_plane),
> GFP_KERNEL);
> if (!meson_plane)
> return -ENOMEM;
> @@ -549,14 +549,14 @@ int meson_plane_create(struct meson_drm *priv)
> else if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A))
> format_modifiers = format_modifiers_afbc_g12a;
>
> - ret = drm_universal_plane_init(priv->drm, plane, 0xFF,
> + ret = drm_universal_plane_init(&priv->drm, plane, 0xFF,
> &meson_plane_funcs,
> supported_drm_formats,
> ARRAY_SIZE(supported_drm_formats),
> format_modifiers,
> DRM_PLANE_TYPE_PRIMARY, "meson_primary_plane");
> if (ret) {
> - devm_kfree(priv->drm->dev, meson_plane);
> + devm_kfree(priv->drm.dev, meson_plane);
> return ret;
> }
>
Hi,
It's just a friendly reminder.
Anastasia Belova
10/09/24 18:16, Anastasia Belova пишет:
> Switch to a managed drm device to cleanup some error handling
> and make future work easier.
>
> Fix dereference of NULL in meson_drv_bind_master by removing
> drm_dev_put(drm) before meson_encoder_*_remove and
> component_unbind_all where drm is dereferenced.
>
> Co-developed by Linux Verification Center (linuxtesting.org).
>
> Cc: stable@vger.kernel.org # 6.5
> Fixes: 6a044642988b ("drm/meson: fix unbind path if HDMI fails to bind")
> Signed-off-by: Anastasia Belova <abelova@astralinux.ru>
> ---
> v2: fix commit message and add Cc: stable@vger.kernel.org
> drivers/gpu/drm/meson/meson_crtc.c | 10 +--
> drivers/gpu/drm/meson/meson_drv.c | 71 ++++++++++------------
> drivers/gpu/drm/meson/meson_drv.h | 2 +-
> drivers/gpu/drm/meson/meson_encoder_cvbs.c | 8 +--
> drivers/gpu/drm/meson/meson_overlay.c | 8 +--
> drivers/gpu/drm/meson/meson_plane.c | 10 +--
> 6 files changed, 51 insertions(+), 58 deletions(-)
>
> diff --git a/drivers/gpu/drm/meson/meson_crtc.c b/drivers/gpu/drm/meson/meson_crtc.c
> index d70616da8ce2..e1c0bf3baeea 100644
> --- a/drivers/gpu/drm/meson/meson_crtc.c
> +++ b/drivers/gpu/drm/meson/meson_crtc.c
> @@ -662,13 +662,13 @@ void meson_crtc_irq(struct meson_drm *priv)
>
> drm_crtc_handle_vblank(priv->crtc);
>
> - spin_lock_irqsave(&priv->drm->event_lock, flags);
> + spin_lock_irqsave(&priv->drm.event_lock, flags);
> if (meson_crtc->event) {
> drm_crtc_send_vblank_event(priv->crtc, meson_crtc->event);
> drm_crtc_vblank_put(priv->crtc);
> meson_crtc->event = NULL;
> }
> - spin_unlock_irqrestore(&priv->drm->event_lock, flags);
> + spin_unlock_irqrestore(&priv->drm.event_lock, flags);
> }
>
> int meson_crtc_create(struct meson_drm *priv)
> @@ -677,18 +677,18 @@ int meson_crtc_create(struct meson_drm *priv)
> struct drm_crtc *crtc;
> int ret;
>
> - meson_crtc = devm_kzalloc(priv->drm->dev, sizeof(*meson_crtc),
> + meson_crtc = devm_kzalloc(priv->drm.dev, sizeof(*meson_crtc),
> GFP_KERNEL);
> if (!meson_crtc)
> return -ENOMEM;
>
> meson_crtc->priv = priv;
> crtc = &meson_crtc->base;
> - ret = drm_crtc_init_with_planes(priv->drm, crtc,
> + ret = drm_crtc_init_with_planes(&priv->drm, crtc,
> priv->primary_plane, NULL,
> &meson_crtc_funcs, "meson_crtc");
> if (ret) {
> - dev_err(priv->drm->dev, "Failed to init CRTC\n");
> + dev_err(priv->drm.dev, "Failed to init CRTC\n");
> return ret;
> }
>
> diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c
> index 4bd0baa2a4f5..2e7c2e7c7b82 100644
> --- a/drivers/gpu/drm/meson/meson_drv.c
> +++ b/drivers/gpu/drm/meson/meson_drv.c
> @@ -182,7 +182,6 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
> struct platform_device *pdev = to_platform_device(dev);
> const struct meson_drm_match_data *match;
> struct meson_drm *priv;
> - struct drm_device *drm;
> struct resource *res;
> void __iomem *regs;
> int ret, i;
> @@ -197,17 +196,13 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
> if (!match)
> return -ENODEV;
>
> - drm = drm_dev_alloc(&meson_driver, dev);
> - if (IS_ERR(drm))
> - return PTR_ERR(drm);
> + priv = devm_drm_dev_alloc(dev, &meson_driver,
> + struct meson_drm, drm);
>
> - priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
> - if (!priv) {
> - ret = -ENOMEM;
> - goto free_drm;
> - }
> - drm->dev_private = priv;
> - priv->drm = drm;
> + if (IS_ERR(priv))
> + return PTR_ERR(priv);
> +
> + priv->drm.dev_private = priv;
> priv->dev = dev;
> priv->compat = match->compat;
> priv->afbcd.ops = match->afbcd_ops;
> @@ -215,7 +210,7 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
> regs = devm_platform_ioremap_resource_byname(pdev, "vpu");
> if (IS_ERR(regs)) {
> ret = PTR_ERR(regs);
> - goto free_drm;
> + goto remove_encoders;
> }
>
> priv->io_base = regs;
> @@ -223,13 +218,13 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
> res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "hhi");
> if (!res) {
> ret = -EINVAL;
> - goto free_drm;
> + goto remove_encoders;
> }
> /* Simply ioremap since it may be a shared register zone */
> regs = devm_ioremap(dev, res->start, resource_size(res));
> if (!regs) {
> ret = -EADDRNOTAVAIL;
> - goto free_drm;
> + goto remove_encoders;
> }
>
> priv->hhi = devm_regmap_init_mmio(dev, regs,
> @@ -237,18 +232,18 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
> if (IS_ERR(priv->hhi)) {
> dev_err(&pdev->dev, "Couldn't create the HHI regmap\n");
> ret = PTR_ERR(priv->hhi);
> - goto free_drm;
> + goto remove_encoders;
> }
>
> priv->canvas = meson_canvas_get(dev);
> if (IS_ERR(priv->canvas)) {
> ret = PTR_ERR(priv->canvas);
> - goto free_drm;
> + goto remove_encoders;
> }
>
> ret = meson_canvas_alloc(priv->canvas, &priv->canvas_id_osd1);
> if (ret)
> - goto free_drm;
> + goto remove_encoders;
> ret = meson_canvas_alloc(priv->canvas, &priv->canvas_id_vd1_0);
> if (ret)
> goto free_canvas_osd1;
> @@ -261,7 +256,7 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
>
> priv->vsync_irq = platform_get_irq(pdev, 0);
>
> - ret = drm_vblank_init(drm, 1);
> + ret = drm_vblank_init(&priv->drm, 1);
> if (ret)
> goto free_canvas_vd1_2;
>
> @@ -284,10 +279,10 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
> ret = drmm_mode_config_init(drm);
> if (ret)
> goto free_canvas_vd1_2;
> - drm->mode_config.max_width = 3840;
> - drm->mode_config.max_height = 2160;
> - drm->mode_config.funcs = &meson_mode_config_funcs;
> - drm->mode_config.helper_private = &meson_mode_config_helpers;
> + priv->drm.mode_config.max_width = 3840;
> + priv->drm.mode_config.max_height = 2160;
> + priv->drm.mode_config.funcs = &meson_mode_config_funcs;
> + priv->drm.mode_config.helper_private = &meson_mode_config_helpers;
>
> /* Hardware Initialization */
>
> @@ -308,9 +303,9 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
> goto exit_afbcd;
>
> if (has_components) {
> - ret = component_bind_all(dev, drm);
> + ret = component_bind_all(dev, &priv->drm);
> if (ret) {
> - dev_err(drm->dev, "Couldn't bind all components\n");
> + dev_err(priv->drm.dev, "Couldn't bind all components\n");
> /* Do not try to unbind */
> has_components = false;
> goto exit_afbcd;
> @@ -339,26 +334,26 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
> if (ret)
> goto exit_afbcd;
>
> - ret = request_irq(priv->vsync_irq, meson_irq, 0, drm->driver->name, drm);
> + ret = request_irq(priv->vsync_irq, meson_irq, 0, priv->drm.driver->name, &priv->drm);
> if (ret)
> goto exit_afbcd;
>
> - drm_mode_config_reset(drm);
> + drm_mode_config_reset(&priv->drm);
>
> - drm_kms_helper_poll_init(drm);
> + drm_kms_helper_poll_init(&priv->drm);
>
> platform_set_drvdata(pdev, priv);
>
> - ret = drm_dev_register(drm, 0);
> + ret = drm_dev_register(&priv->drm, 0);
> if (ret)
> goto uninstall_irq;
>
> - drm_fbdev_dma_setup(drm, 32);
> + drm_fbdev_dma_setup(&priv->drm, 32);
>
> return 0;
>
> uninstall_irq:
> - free_irq(priv->vsync_irq, drm);
> + free_irq(priv->vsync_irq, &priv->drm);
> exit_afbcd:
> if (priv->afbcd.ops)
> priv->afbcd.ops->exit(priv);
> @@ -370,15 +365,14 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
> meson_canvas_free(priv->canvas, priv->canvas_id_vd1_0);
> free_canvas_osd1:
> meson_canvas_free(priv->canvas, priv->canvas_id_osd1);
> -free_drm:
> - drm_dev_put(drm);
> +remove_encoders:
>
> meson_encoder_dsi_remove(priv);
> meson_encoder_hdmi_remove(priv);
> meson_encoder_cvbs_remove(priv);
>
> if (has_components)
> - component_unbind_all(dev, drm);
> + component_unbind_all(dev, &priv->drm);
>
> return ret;
> }
> @@ -391,7 +385,7 @@ static int meson_drv_bind(struct device *dev)
> static void meson_drv_unbind(struct device *dev)
> {
> struct meson_drm *priv = dev_get_drvdata(dev);
> - struct drm_device *drm = priv->drm;
> + struct drm_device *drm = &priv->drm;
>
> if (priv->canvas) {
> meson_canvas_free(priv->canvas, priv->canvas_id_osd1);
> @@ -404,7 +398,6 @@ static void meson_drv_unbind(struct device *dev)
> drm_kms_helper_poll_fini(drm);
> drm_atomic_helper_shutdown(drm);
> free_irq(priv->vsync_irq, drm);
> - drm_dev_put(drm);
>
> meson_encoder_dsi_remove(priv);
> meson_encoder_hdmi_remove(priv);
> @@ -428,7 +421,7 @@ static int __maybe_unused meson_drv_pm_suspend(struct device *dev)
> if (!priv)
> return 0;
>
> - return drm_mode_config_helper_suspend(priv->drm);
> + return drm_mode_config_helper_suspend(&priv->drm);
> }
>
> static int __maybe_unused meson_drv_pm_resume(struct device *dev)
> @@ -445,7 +438,7 @@ static int __maybe_unused meson_drv_pm_resume(struct device *dev)
> if (priv->afbcd.ops)
> priv->afbcd.ops->init(priv);
>
> - return drm_mode_config_helper_resume(priv->drm);
> + return drm_mode_config_helper_resume(&priv->drm);
> }
>
> static void meson_drv_shutdown(struct platform_device *pdev)
> @@ -455,8 +448,8 @@ static void meson_drv_shutdown(struct platform_device *pdev)
> if (!priv)
> return;
>
> - drm_kms_helper_poll_fini(priv->drm);
> - drm_atomic_helper_shutdown(priv->drm);
> + drm_kms_helper_poll_fini(&priv->drm);
> + drm_atomic_helper_shutdown(&priv->drm);
> }
>
> /*
> diff --git a/drivers/gpu/drm/meson/meson_drv.h b/drivers/gpu/drm/meson/meson_drv.h
> index 3f9345c14f31..c4c6c810cb20 100644
> --- a/drivers/gpu/drm/meson/meson_drv.h
> +++ b/drivers/gpu/drm/meson/meson_drv.h
> @@ -53,7 +53,7 @@ struct meson_drm {
> u8 canvas_id_vd1_1;
> u8 canvas_id_vd1_2;
>
> - struct drm_device *drm;
> + struct drm_device drm;
> struct drm_crtc *crtc;
> struct drm_plane *primary_plane;
> struct drm_plane *overlay_plane;
> diff --git a/drivers/gpu/drm/meson/meson_encoder_cvbs.c b/drivers/gpu/drm/meson/meson_encoder_cvbs.c
> index d1191de855d9..ddca22c8c1ff 100644
> --- a/drivers/gpu/drm/meson/meson_encoder_cvbs.c
> +++ b/drivers/gpu/drm/meson/meson_encoder_cvbs.c
> @@ -104,7 +104,7 @@ static int meson_encoder_cvbs_get_modes(struct drm_bridge *bridge,
> for (i = 0; i < MESON_CVBS_MODES_COUNT; ++i) {
> struct meson_cvbs_mode *meson_mode = &meson_cvbs_modes[i];
>
> - mode = drm_mode_duplicate(priv->drm, &meson_mode->mode);
> + mode = drm_mode_duplicate(&priv->drm, &meson_mode->mode);
> if (!mode) {
> dev_err(priv->dev, "Failed to create a new display mode\n");
> return 0;
> @@ -221,7 +221,7 @@ static const struct drm_bridge_funcs meson_encoder_cvbs_bridge_funcs = {
>
> int meson_encoder_cvbs_probe(struct meson_drm *priv)
> {
> - struct drm_device *drm = priv->drm;
> + struct drm_device *drm = &priv->drm;
> struct meson_encoder_cvbs *meson_encoder_cvbs;
> struct drm_connector *connector;
> struct device_node *remote;
> @@ -256,7 +256,7 @@ int meson_encoder_cvbs_probe(struct meson_drm *priv)
> meson_encoder_cvbs->priv = priv;
>
> /* Encoder */
> - ret = drm_simple_encoder_init(priv->drm, &meson_encoder_cvbs->encoder,
> + ret = drm_simple_encoder_init(&priv->drm, &meson_encoder_cvbs->encoder,
> DRM_MODE_ENCODER_TVDAC);
> if (ret)
> return dev_err_probe(priv->dev, ret,
> @@ -273,7 +273,7 @@ int meson_encoder_cvbs_probe(struct meson_drm *priv)
> }
>
> /* Initialize & attach Bridge Connector */
> - connector = drm_bridge_connector_init(priv->drm, &meson_encoder_cvbs->encoder);
> + connector = drm_bridge_connector_init(&priv->drm, &meson_encoder_cvbs->encoder);
> if (IS_ERR(connector))
> return dev_err_probe(priv->dev, PTR_ERR(connector),
> "Unable to create CVBS bridge connector\n");
> diff --git a/drivers/gpu/drm/meson/meson_overlay.c b/drivers/gpu/drm/meson/meson_overlay.c
> index 7f98de38842b..60ee7f758723 100644
> --- a/drivers/gpu/drm/meson/meson_overlay.c
> +++ b/drivers/gpu/drm/meson/meson_overlay.c
> @@ -484,7 +484,7 @@ static void meson_overlay_atomic_update(struct drm_plane *plane,
>
> interlace_mode = new_state->crtc->mode.flags & DRM_MODE_FLAG_INTERLACE;
>
> - spin_lock_irqsave(&priv->drm->event_lock, flags);
> + spin_lock_irqsave(&priv->drm.event_lock, flags);
>
> if ((fb->modifier & DRM_FORMAT_MOD_AMLOGIC_FBC(0, 0)) ==
> DRM_FORMAT_MOD_AMLOGIC_FBC(0, 0)) {
> @@ -717,7 +717,7 @@ static void meson_overlay_atomic_update(struct drm_plane *plane,
>
> priv->viu.vd1_enabled = true;
>
> - spin_unlock_irqrestore(&priv->drm->event_lock, flags);
> + spin_unlock_irqrestore(&priv->drm.event_lock, flags);
>
> DRM_DEBUG_DRIVER("\n");
> }
> @@ -838,7 +838,7 @@ int meson_overlay_create(struct meson_drm *priv)
>
> DRM_DEBUG_DRIVER("\n");
>
> - meson_overlay = devm_kzalloc(priv->drm->dev, sizeof(*meson_overlay),
> + meson_overlay = devm_kzalloc(priv->drm.dev, sizeof(*meson_overlay),
> GFP_KERNEL);
> if (!meson_overlay)
> return -ENOMEM;
> @@ -846,7 +846,7 @@ int meson_overlay_create(struct meson_drm *priv)
> meson_overlay->priv = priv;
> plane = &meson_overlay->base;
>
> - drm_universal_plane_init(priv->drm, plane, 0xFF,
> + drm_universal_plane_init(&priv->drm, plane, 0xFF,
> &meson_overlay_funcs,
> supported_drm_formats,
> ARRAY_SIZE(supported_drm_formats),
> diff --git a/drivers/gpu/drm/meson/meson_plane.c b/drivers/gpu/drm/meson/meson_plane.c
> index b43ac61201f3..13be94309bf4 100644
> --- a/drivers/gpu/drm/meson/meson_plane.c
> +++ b/drivers/gpu/drm/meson/meson_plane.c
> @@ -157,7 +157,7 @@ static void meson_plane_atomic_update(struct drm_plane *plane,
> * Update Buffer
> * Enable Plane
> */
> - spin_lock_irqsave(&priv->drm->event_lock, flags);
> + spin_lock_irqsave(&priv->drm.event_lock, flags);
>
> /* Check if AFBC decoder is required for this buffer */
> if ((meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXM) ||
> @@ -393,7 +393,7 @@ static void meson_plane_atomic_update(struct drm_plane *plane,
>
> priv->viu.osd1_enabled = true;
>
> - spin_unlock_irqrestore(&priv->drm->event_lock, flags);
> + spin_unlock_irqrestore(&priv->drm.event_lock, flags);
> }
>
> static void meson_plane_atomic_disable(struct drm_plane *plane,
> @@ -536,7 +536,7 @@ int meson_plane_create(struct meson_drm *priv)
> const uint64_t *format_modifiers = format_modifiers_default;
> int ret;
>
> - meson_plane = devm_kzalloc(priv->drm->dev, sizeof(*meson_plane),
> + meson_plane = devm_kzalloc(priv->drm.dev, sizeof(*meson_plane),
> GFP_KERNEL);
> if (!meson_plane)
> return -ENOMEM;
> @@ -549,14 +549,14 @@ int meson_plane_create(struct meson_drm *priv)
> else if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A))
> format_modifiers = format_modifiers_afbc_g12a;
>
> - ret = drm_universal_plane_init(priv->drm, plane, 0xFF,
> + ret = drm_universal_plane_init(&priv->drm, plane, 0xFF,
> &meson_plane_funcs,
> supported_drm_formats,
> ARRAY_SIZE(supported_drm_formats),
> format_modifiers,
> DRM_PLANE_TYPE_PRIMARY, "meson_primary_plane");
> if (ret) {
> - devm_kfree(priv->drm->dev, meson_plane);
> + devm_kfree(priv->drm.dev, meson_plane);
> return ret;
> }
>
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