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charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240623-fd-hdmi-hpd-v3-13-8645a64cbd63@linaro.org> References: <20240623-fd-hdmi-hpd-v3-0-8645a64cbd63@linaro.org> In-Reply-To: <20240623-fd-hdmi-hpd-v3-0-8645a64cbd63@linaro.org> To: Rob Clark , Abhinav Kumar , Sean Paul , Marijn Suijten , David Airlie , Daniel Vetter Cc: linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org, Jessica Zhang X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=4028; i=dmitry.baryshkov@linaro.org; h=from:subject:message-id; bh=+t2U1RD/wb4G84+CRNoOtMFGJ3kapYkKIPOtVroW3X8=; b=owEBbQGS/pANAwAKAYs8ij4CKSjVAcsmYgBmd0nquPw6MxmqYJ+vfPQc/Atbn/P9DAqJmmFQt Yr+/Lkja2qJATMEAAEKAB0WIQRMcISVXLJjVvC4lX+LPIo+Aiko1QUCZndJ6gAKCRCLPIo+Aiko 1WRqB/0efKfu2G2+t6qny4TOcmCSPhfPu7OOFom+3b421qfQbFXUny/DZ0W1AA8kEu/gH1pBcKb /Gws4qXxf9719+rG6htWlLc6pDbh2X5GSLl+Gw2LdNgSGOlsBPgcb+rAULRVP0tinf9SC1kJFsF 238GTjIRY666bROxfOHEnjuzpRj+zLo9Wfdk48mySvgxvQuN4qBUCwFWTLAQA/a5H3UqbbeyGp6 04u6qOgMk1JiEGG1tlW8bE9zQ+KEku0p6WGCKqKEnt0ooO3l0WjtDshGualV6i2ay5P0U82l+Jp odceYaWBvcqku8OEIZPpnxkiwVAbXMF76xQQMvqutiryQ8Zo X-Developer-Key: i=dmitry.baryshkov@linaro.org; a=openpgp; fpr=8F88381DD5C873E4AE487DA5199BF1243632046A The HDMI driver already has msm_hdmi_hpd_enable() and msm_hdmi_hpd_disable() functions. Wire them into the msm_hdmi_bridge_funcs, so that HPD can be enabled and disabled dynamically rather than always having HPD events generation enabled. Reviewed-by: Jessica Zhang Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/msm/hdmi/hdmi.c | 9 --------- drivers/gpu/drm/msm/hdmi/hdmi.h | 4 ++-- drivers/gpu/drm/msm/hdmi/hdmi_bridge.c | 4 ++++ drivers/gpu/drm/msm/hdmi/hdmi_hpd.c | 12 ++++++------ 4 files changed, 12 insertions(+), 17 deletions(-) diff --git a/drivers/gpu/drm/msm/hdmi/hdmi.c b/drivers/gpu/drm/msm/hdmi/hdm= i.c index 9f1de4c9ffdf..7621d17b57b8 100644 --- a/drivers/gpu/drm/msm/hdmi/hdmi.c +++ b/drivers/gpu/drm/msm/hdmi/hdmi.c @@ -201,12 +201,6 @@ int msm_hdmi_modeset_init(struct hdmi *hdmi, goto fail; } =20 - ret =3D msm_hdmi_hpd_enable(hdmi->bridge); - if (ret < 0) { - DRM_DEV_ERROR(&hdmi->pdev->dev, "failed to enable HPD: %d\n", ret); - goto fail; - } - return 0; =20 fail: @@ -352,9 +346,6 @@ static void msm_hdmi_unbind(struct device *dev, struct = device *master, if (priv->hdmi->audio_pdev) platform_device_unregister(priv->hdmi->audio_pdev); =20 - if (priv->hdmi->bridge) - msm_hdmi_hpd_disable(priv->hdmi); - msm_hdmi_destroy(priv->hdmi); priv->hdmi =3D NULL; } diff --git a/drivers/gpu/drm/msm/hdmi/hdmi.h b/drivers/gpu/drm/msm/hdmi/hdm= i.h index 9961dae9e9b3..96f2a982c766 100644 --- a/drivers/gpu/drm/msm/hdmi/hdmi.h +++ b/drivers/gpu/drm/msm/hdmi/hdmi.h @@ -207,8 +207,8 @@ int msm_hdmi_bridge_init(struct hdmi *hdmi); void msm_hdmi_hpd_irq(struct drm_bridge *bridge); enum drm_connector_status msm_hdmi_bridge_detect( struct drm_bridge *bridge); -int msm_hdmi_hpd_enable(struct drm_bridge *bridge); -void msm_hdmi_hpd_disable(struct hdmi *hdmi); +void msm_hdmi_hpd_enable(struct drm_bridge *bridge); +void msm_hdmi_hpd_disable(struct drm_bridge *bridge); =20 /* * i2c adapter for ddc: diff --git a/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c b/drivers/gpu/drm/msm/h= dmi/hdmi_bridge.c index 7bf1c3b379c1..0441d728afc8 100644 --- a/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c +++ b/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c @@ -465,6 +465,10 @@ static const struct drm_bridge_funcs msm_hdmi_bridge_f= uncs =3D { .mode_valid =3D msm_hdmi_bridge_mode_valid, .edid_read =3D msm_hdmi_bridge_edid_read, .detect =3D msm_hdmi_bridge_detect, + + .hpd_enable =3D msm_hdmi_hpd_enable, + .hpd_disable =3D msm_hdmi_hpd_disable, + .hdmi_clear_infoframe =3D msm_hdmi_bridge_clear_infoframe, .hdmi_write_infoframe =3D msm_hdmi_bridge_write_infoframe, }; diff --git a/drivers/gpu/drm/msm/hdmi/hdmi_hpd.c b/drivers/gpu/drm/msm/hdmi= /hdmi_hpd.c index cb89e9e2c6ea..04d00b6f36fd 100644 --- a/drivers/gpu/drm/msm/hdmi/hdmi_hpd.c +++ b/drivers/gpu/drm/msm/hdmi/hdmi_hpd.c @@ -60,7 +60,7 @@ static void msm_hdmi_phy_reset(struct hdmi *hdmi) } } =20 -int msm_hdmi_hpd_enable(struct drm_bridge *bridge) +void msm_hdmi_hpd_enable(struct drm_bridge *bridge) { struct hdmi_bridge *hdmi_bridge =3D to_hdmi_bridge(bridge); struct hdmi *hdmi =3D hdmi_bridge->hdmi; @@ -70,8 +70,8 @@ int msm_hdmi_hpd_enable(struct drm_bridge *bridge) unsigned long flags; =20 ret =3D pm_runtime_resume_and_get(dev); - if (ret) - return ret; + if (WARN_ON(ret)) + return; =20 mutex_lock(&hdmi->state_mutex); msm_hdmi_set_mode(hdmi, false); @@ -99,12 +99,12 @@ int msm_hdmi_hpd_enable(struct drm_bridge *bridge) hdmi_write(hdmi, REG_HDMI_HPD_CTRL, HDMI_HPD_CTRL_ENABLE | hpd_ctrl); spin_unlock_irqrestore(&hdmi->reg_lock, flags); - - return 0; } =20 -void msm_hdmi_hpd_disable(struct hdmi *hdmi) +void msm_hdmi_hpd_disable(struct drm_bridge *bridge) { + struct hdmi_bridge *hdmi_bridge =3D to_hdmi_bridge(bridge); + struct hdmi *hdmi =3D hdmi_bridge->hdmi; struct device *dev =3D &hdmi->pdev->dev; =20 /* Disable HPD interrupt */ --=20 2.39.2