drivers/mtd/mtdcore.c | 2 ++ drivers/nvmem/apple-efuses.c | 1 + drivers/nvmem/core.c | 8 +++++--- drivers/nvmem/imx-ocotp-scu.c | 1 + drivers/nvmem/imx-ocotp.c | 1 + drivers/nvmem/meson-efuse.c | 1 + drivers/nvmem/meson-mx-efuse.c | 1 + drivers/nvmem/microchip-otpc.c | 1 + drivers/nvmem/mtk-efuse.c | 1 + drivers/nvmem/qcom-spmi-sdam.c | 1 + drivers/nvmem/qfprom.c | 1 + drivers/nvmem/rave-sp-eeprom.c | 1 + drivers/nvmem/rockchip-efuse.c | 1 + drivers/nvmem/sc27xx-efuse.c | 1 + drivers/nvmem/sec-qfprom.c | 1 + drivers/nvmem/sprd-efuse.c | 1 + drivers/nvmem/stm32-romem.c | 1 + drivers/nvmem/sunplus-ocotp.c | 1 + drivers/nvmem/sunxi_sid.c | 1 + drivers/nvmem/uniphier-efuse.c | 1 + drivers/nvmem/zynqmp_nvmem.c | 1 + drivers/rtc/nvmem.c | 1 + drivers/w1/slaves/w1_ds250x.c | 1 + include/linux/nvmem-provider.h | 2 ++ 24 files changed, 30 insertions(+), 3 deletions(-)
From: Rafał Miłecki <rafal@milecki.pl>
Binding for fixed NVMEM cells defined directly as NVMEM device subnodes
has been deprecated. It has been replaced by the "fixed-layout" NVMEM
layout binding.
New syntax is meant to be clearer and should help avoiding imprecise
bindings.
NVMEM subsystem already supports the new binding. It should be a good
idea to limit support for old syntax to existing drivers that actually
support & use it (we can't break backward compatibility!). That way we
additionally encourage new bindings & drivers to ignore deprecated
binding.
It wasn't clear (to me) if rtc and w1 code actually uses old syntax
fixed cells. I enabled them to don't risk any breakage.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
[for meson-{efuse,mx-efuse}.c]
Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
[for mtk-efuse.c, nvmem/core.c, nvmem-provider.h]
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
[MT8192, MT8195 Chromebooks]
Tested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
[for microchip-otpc.c]
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
[SAMA7G5-EK]
Tested-by: Claudiu Beznea <claudiu.beznea@microchip.com>
---
V2: Fix stm32-romem.c typo breaking its compilation
Pick Martin's Acked-by
Add paragraph about layouts deprecating add_legacy_fixed_of_cells
V3: Update commit description:
1. Make it clear we're NOT dropping fixed cells support
2. Use nicer words (s/made sense/was totally safe/)
3. Explain fixed cells layout thing
4. Add paragraph with purpose of this commit
V4: Completely rewrite commit message.
Rename config option to "add_legacy_fixed_of_cells".
V5: Rebase patch
Cover sec-qfprom.c which uses legacy syntax
drivers/mtd/mtdcore.c | 2 ++
drivers/nvmem/apple-efuses.c | 1 +
drivers/nvmem/core.c | 8 +++++---
drivers/nvmem/imx-ocotp-scu.c | 1 +
drivers/nvmem/imx-ocotp.c | 1 +
drivers/nvmem/meson-efuse.c | 1 +
drivers/nvmem/meson-mx-efuse.c | 1 +
drivers/nvmem/microchip-otpc.c | 1 +
drivers/nvmem/mtk-efuse.c | 1 +
drivers/nvmem/qcom-spmi-sdam.c | 1 +
drivers/nvmem/qfprom.c | 1 +
drivers/nvmem/rave-sp-eeprom.c | 1 +
drivers/nvmem/rockchip-efuse.c | 1 +
drivers/nvmem/sc27xx-efuse.c | 1 +
drivers/nvmem/sec-qfprom.c | 1 +
drivers/nvmem/sprd-efuse.c | 1 +
drivers/nvmem/stm32-romem.c | 1 +
drivers/nvmem/sunplus-ocotp.c | 1 +
drivers/nvmem/sunxi_sid.c | 1 +
drivers/nvmem/uniphier-efuse.c | 1 +
drivers/nvmem/zynqmp_nvmem.c | 1 +
drivers/rtc/nvmem.c | 1 +
drivers/w1/slaves/w1_ds250x.c | 1 +
include/linux/nvmem-provider.h | 2 ++
24 files changed, 30 insertions(+), 3 deletions(-)
diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c
index 9bd661be3ae9..fbf60d1364f0 100644
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -552,6 +552,7 @@ static int mtd_nvmem_add(struct mtd_info *mtd)
config.dev = &mtd->dev;
config.name = dev_name(&mtd->dev);
config.owner = THIS_MODULE;
+ config.add_legacy_fixed_of_cells = of_device_is_compatible(node, "nvmem-cells");
config.reg_read = mtd_nvmem_reg_read;
config.size = mtd->size;
config.word_size = 1;
@@ -898,6 +899,7 @@ static struct nvmem_device *mtd_otp_nvmem_register(struct mtd_info *mtd,
config.name = compatible;
config.id = NVMEM_DEVID_AUTO;
config.owner = THIS_MODULE;
+ config.add_legacy_fixed_of_cells = true;
config.type = NVMEM_TYPE_OTP;
config.root_only = true;
config.ignore_wp = true;
diff --git a/drivers/nvmem/apple-efuses.c b/drivers/nvmem/apple-efuses.c
index 9b7c87102104..d3d49d22338b 100644
--- a/drivers/nvmem/apple-efuses.c
+++ b/drivers/nvmem/apple-efuses.c
@@ -36,6 +36,7 @@ static int apple_efuses_probe(struct platform_device *pdev)
struct resource *res;
struct nvmem_config config = {
.dev = &pdev->dev,
+ .add_legacy_fixed_of_cells = true,
.read_only = true,
.reg_read = apple_efuses_read,
.stride = sizeof(u32),
diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index eaf6a3fe8ca6..2710943f53c4 100644
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -997,9 +997,11 @@ struct nvmem_device *nvmem_register(const struct nvmem_config *config)
if (rval)
goto err_remove_cells;
- rval = nvmem_add_cells_from_legacy_of(nvmem);
- if (rval)
- goto err_remove_cells;
+ if (config->add_legacy_fixed_of_cells) {
+ rval = nvmem_add_cells_from_legacy_of(nvmem);
+ if (rval)
+ goto err_remove_cells;
+ }
rval = nvmem_add_cells_from_fixed_layout(nvmem);
if (rval)
diff --git a/drivers/nvmem/imx-ocotp-scu.c b/drivers/nvmem/imx-ocotp-scu.c
index c38d9c1c3f48..517d83e11af2 100644
--- a/drivers/nvmem/imx-ocotp-scu.c
+++ b/drivers/nvmem/imx-ocotp-scu.c
@@ -220,6 +220,7 @@ static int imx_scu_ocotp_write(void *context, unsigned int offset,
static struct nvmem_config imx_scu_ocotp_nvmem_config = {
.name = "imx-scu-ocotp",
+ .add_legacy_fixed_of_cells = true,
.read_only = false,
.word_size = 4,
.stride = 1,
diff --git a/drivers/nvmem/imx-ocotp.c b/drivers/nvmem/imx-ocotp.c
index a223d9537f22..434f197e27bf 100644
--- a/drivers/nvmem/imx-ocotp.c
+++ b/drivers/nvmem/imx-ocotp.c
@@ -615,6 +615,7 @@ static int imx_ocotp_probe(struct platform_device *pdev)
return PTR_ERR(priv->clk);
priv->params = of_device_get_match_data(&pdev->dev);
+ imx_ocotp_nvmem_config.add_legacy_fixed_of_cells = true;
imx_ocotp_nvmem_config.size = 4 * priv->params->nregs;
imx_ocotp_nvmem_config.dev = dev;
imx_ocotp_nvmem_config.priv = priv;
diff --git a/drivers/nvmem/meson-efuse.c b/drivers/nvmem/meson-efuse.c
index d6b533497ce1..b922df99f9bc 100644
--- a/drivers/nvmem/meson-efuse.c
+++ b/drivers/nvmem/meson-efuse.c
@@ -93,6 +93,7 @@ static int meson_efuse_probe(struct platform_device *pdev)
econfig->dev = dev;
econfig->name = dev_name(dev);
+ econfig->add_legacy_fixed_of_cells = true;
econfig->stride = 1;
econfig->word_size = 1;
econfig->reg_read = meson_efuse_read;
diff --git a/drivers/nvmem/meson-mx-efuse.c b/drivers/nvmem/meson-mx-efuse.c
index d6d7aeda31f9..3ff04d5ca8f8 100644
--- a/drivers/nvmem/meson-mx-efuse.c
+++ b/drivers/nvmem/meson-mx-efuse.c
@@ -210,6 +210,7 @@ static int meson_mx_efuse_probe(struct platform_device *pdev)
efuse->config.owner = THIS_MODULE;
efuse->config.dev = &pdev->dev;
efuse->config.priv = efuse;
+ efuse->config.add_legacy_fixed_of_cells = true;
efuse->config.stride = drvdata->word_size;
efuse->config.word_size = drvdata->word_size;
efuse->config.size = SZ_512;
diff --git a/drivers/nvmem/microchip-otpc.c b/drivers/nvmem/microchip-otpc.c
index 436e0dc4f337..7cf81738a3e0 100644
--- a/drivers/nvmem/microchip-otpc.c
+++ b/drivers/nvmem/microchip-otpc.c
@@ -261,6 +261,7 @@ static int mchp_otpc_probe(struct platform_device *pdev)
return ret;
mchp_nvmem_config.dev = otpc->dev;
+ mchp_nvmem_config.add_legacy_fixed_of_cells = true;
mchp_nvmem_config.size = size;
mchp_nvmem_config.priv = otpc;
nvmem = devm_nvmem_register(&pdev->dev, &mchp_nvmem_config);
diff --git a/drivers/nvmem/mtk-efuse.c b/drivers/nvmem/mtk-efuse.c
index b36cd0dcc8c7..87c94686cfd2 100644
--- a/drivers/nvmem/mtk-efuse.c
+++ b/drivers/nvmem/mtk-efuse.c
@@ -83,6 +83,7 @@ static int mtk_efuse_probe(struct platform_device *pdev)
return PTR_ERR(priv->base);
pdata = device_get_match_data(dev);
+ econfig.add_legacy_fixed_of_cells = true;
econfig.stride = 1;
econfig.word_size = 1;
econfig.reg_read = mtk_reg_read;
diff --git a/drivers/nvmem/qcom-spmi-sdam.c b/drivers/nvmem/qcom-spmi-sdam.c
index 70f2d4f2efbf..9aa8f42faa4c 100644
--- a/drivers/nvmem/qcom-spmi-sdam.c
+++ b/drivers/nvmem/qcom-spmi-sdam.c
@@ -142,6 +142,7 @@ static int sdam_probe(struct platform_device *pdev)
sdam->sdam_config.name = "spmi_sdam";
sdam->sdam_config.id = NVMEM_DEVID_AUTO;
sdam->sdam_config.owner = THIS_MODULE;
+ sdam->sdam_config.add_legacy_fixed_of_cells = true;
sdam->sdam_config.stride = 1;
sdam->sdam_config.word_size = 1;
sdam->sdam_config.reg_read = sdam_read;
diff --git a/drivers/nvmem/qfprom.c b/drivers/nvmem/qfprom.c
index 525be03b7bba..116a39e804c7 100644
--- a/drivers/nvmem/qfprom.c
+++ b/drivers/nvmem/qfprom.c
@@ -357,6 +357,7 @@ static int qfprom_probe(struct platform_device *pdev)
{
struct nvmem_config econfig = {
.name = "qfprom",
+ .add_legacy_fixed_of_cells = true,
.stride = 1,
.word_size = 1,
.id = NVMEM_DEVID_AUTO,
diff --git a/drivers/nvmem/rave-sp-eeprom.c b/drivers/nvmem/rave-sp-eeprom.c
index df6a1c594b78..9ecf3873cbb7 100644
--- a/drivers/nvmem/rave-sp-eeprom.c
+++ b/drivers/nvmem/rave-sp-eeprom.c
@@ -328,6 +328,7 @@ static int rave_sp_eeprom_probe(struct platform_device *pdev)
of_property_read_string(np, "zii,eeprom-name", &config.name);
config.priv = eeprom;
config.dev = dev;
+ config.add_legacy_fixed_of_cells = true;
config.size = size;
config.reg_read = rave_sp_eeprom_reg_read;
config.reg_write = rave_sp_eeprom_reg_write;
diff --git a/drivers/nvmem/rockchip-efuse.c b/drivers/nvmem/rockchip-efuse.c
index 4004c5bece42..2b40978ddb18 100644
--- a/drivers/nvmem/rockchip-efuse.c
+++ b/drivers/nvmem/rockchip-efuse.c
@@ -205,6 +205,7 @@ static int rockchip_rk3399_efuse_read(void *context, unsigned int offset,
static struct nvmem_config econfig = {
.name = "rockchip-efuse",
+ .add_legacy_fixed_of_cells = true,
.stride = 1,
.word_size = 1,
.read_only = true,
diff --git a/drivers/nvmem/sc27xx-efuse.c b/drivers/nvmem/sc27xx-efuse.c
index 2210da40dfbd..bff27011f4ff 100644
--- a/drivers/nvmem/sc27xx-efuse.c
+++ b/drivers/nvmem/sc27xx-efuse.c
@@ -247,6 +247,7 @@ static int sc27xx_efuse_probe(struct platform_device *pdev)
econfig.reg_read = sc27xx_efuse_read;
econfig.priv = efuse;
econfig.dev = &pdev->dev;
+ econfig.add_legacy_fixed_of_cells = true;
nvmem = devm_nvmem_register(&pdev->dev, &econfig);
if (IS_ERR(nvmem)) {
dev_err(&pdev->dev, "failed to register nvmem config\n");
diff --git a/drivers/nvmem/sec-qfprom.c b/drivers/nvmem/sec-qfprom.c
index e48c2dc0c44b..19799b3fe00a 100644
--- a/drivers/nvmem/sec-qfprom.c
+++ b/drivers/nvmem/sec-qfprom.c
@@ -47,6 +47,7 @@ static int sec_qfprom_probe(struct platform_device *pdev)
{
struct nvmem_config econfig = {
.name = "sec-qfprom",
+ .add_legacy_fixed_of_cells = true,
.stride = 1,
.word_size = 1,
.id = NVMEM_DEVID_AUTO,
diff --git a/drivers/nvmem/sprd-efuse.c b/drivers/nvmem/sprd-efuse.c
index 7e6e31db4baa..bb3105f3291f 100644
--- a/drivers/nvmem/sprd-efuse.c
+++ b/drivers/nvmem/sprd-efuse.c
@@ -408,6 +408,7 @@ static int sprd_efuse_probe(struct platform_device *pdev)
econfig.read_only = false;
econfig.name = "sprd-efuse";
econfig.size = efuse->data->blk_nums * SPRD_EFUSE_BLOCK_WIDTH;
+ econfig.add_legacy_fixed_of_cells = true;
econfig.reg_read = sprd_efuse_read;
econfig.reg_write = sprd_efuse_write;
econfig.priv = efuse;
diff --git a/drivers/nvmem/stm32-romem.c b/drivers/nvmem/stm32-romem.c
index 0f84044bd1ad..1541c20709d2 100644
--- a/drivers/nvmem/stm32-romem.c
+++ b/drivers/nvmem/stm32-romem.c
@@ -207,6 +207,7 @@ static int stm32_romem_probe(struct platform_device *pdev)
priv->cfg.priv = priv;
priv->cfg.owner = THIS_MODULE;
priv->cfg.type = NVMEM_TYPE_OTP;
+ priv->cfg.add_legacy_fixed_of_cells = true;
priv->lower = 0;
diff --git a/drivers/nvmem/sunplus-ocotp.c b/drivers/nvmem/sunplus-ocotp.c
index f3a18aa0a6c7..38f5d9df39cd 100644
--- a/drivers/nvmem/sunplus-ocotp.c
+++ b/drivers/nvmem/sunplus-ocotp.c
@@ -145,6 +145,7 @@ static int sp_ocotp_read(void *priv, unsigned int offset, void *value, size_t by
static struct nvmem_config sp_ocotp_nvmem_config = {
.name = "sp-ocotp",
+ .add_legacy_fixed_of_cells = true,
.read_only = true,
.word_size = 1,
.size = QAC628_OTP_SIZE,
diff --git a/drivers/nvmem/sunxi_sid.c b/drivers/nvmem/sunxi_sid.c
index 5d364d85347f..ba14a76208ab 100644
--- a/drivers/nvmem/sunxi_sid.c
+++ b/drivers/nvmem/sunxi_sid.c
@@ -153,6 +153,7 @@ static int sunxi_sid_probe(struct platform_device *pdev)
nvmem_cfg->dev = dev;
nvmem_cfg->name = "sunxi-sid";
nvmem_cfg->type = NVMEM_TYPE_OTP;
+ nvmem_cfg->add_legacy_fixed_of_cells = true;
nvmem_cfg->read_only = true;
nvmem_cfg->size = cfg->size;
nvmem_cfg->word_size = 1;
diff --git a/drivers/nvmem/uniphier-efuse.c b/drivers/nvmem/uniphier-efuse.c
index 0a1dbb80537e..6ad3295d3195 100644
--- a/drivers/nvmem/uniphier-efuse.c
+++ b/drivers/nvmem/uniphier-efuse.c
@@ -52,6 +52,7 @@ static int uniphier_efuse_probe(struct platform_device *pdev)
econfig.size = resource_size(res);
econfig.priv = priv;
econfig.dev = dev;
+ econfig.add_legacy_fixed_of_cells = true;
nvmem = devm_nvmem_register(dev, &econfig);
return PTR_ERR_OR_ZERO(nvmem);
diff --git a/drivers/nvmem/zynqmp_nvmem.c b/drivers/nvmem/zynqmp_nvmem.c
index f49bb9a26d05..7f15aa89a9d0 100644
--- a/drivers/nvmem/zynqmp_nvmem.c
+++ b/drivers/nvmem/zynqmp_nvmem.c
@@ -58,6 +58,7 @@ static int zynqmp_nvmem_probe(struct platform_device *pdev)
priv->dev = dev;
econfig.dev = dev;
+ econfig.add_legacy_fixed_of_cells = true;
econfig.reg_read = zynqmp_nvmem_read;
econfig.priv = priv;
diff --git a/drivers/rtc/nvmem.c b/drivers/rtc/nvmem.c
index 07ede21cee34..37df7e80525b 100644
--- a/drivers/rtc/nvmem.c
+++ b/drivers/rtc/nvmem.c
@@ -21,6 +21,7 @@ int devm_rtc_nvmem_register(struct rtc_device *rtc,
nvmem_config->dev = dev;
nvmem_config->owner = rtc->owner;
+ nvmem_config->add_legacy_fixed_of_cells = true;
nvmem = devm_nvmem_register(dev, nvmem_config);
if (IS_ERR(nvmem))
dev_err(dev, "failed to register nvmem device for RTC\n");
diff --git a/drivers/w1/slaves/w1_ds250x.c b/drivers/w1/slaves/w1_ds250x.c
index 7592c7050d1d..cb426f7dd23d 100644
--- a/drivers/w1/slaves/w1_ds250x.c
+++ b/drivers/w1/slaves/w1_ds250x.c
@@ -168,6 +168,7 @@ static int w1_eprom_add_slave(struct w1_slave *sl)
struct nvmem_device *nvmem;
struct nvmem_config nvmem_cfg = {
.dev = &sl->dev,
+ .add_legacy_fixed_of_cells = true,
.reg_read = w1_nvmem_read,
.type = NVMEM_TYPE_OTP,
.read_only = true,
diff --git a/include/linux/nvmem-provider.h b/include/linux/nvmem-provider.h
index dae26295e6be..1b81adebdb8b 100644
--- a/include/linux/nvmem-provider.h
+++ b/include/linux/nvmem-provider.h
@@ -82,6 +82,7 @@ struct nvmem_cell_info {
* @owner: Pointer to exporter module. Used for refcounting.
* @cells: Optional array of pre-defined NVMEM cells.
* @ncells: Number of elements in cells.
+ * @add_legacy_fixed_of_cells: Read fixed NVMEM cells from old OF syntax.
* @keepout: Optional array of keepout ranges (sorted ascending by start).
* @nkeepout: Number of elements in the keepout array.
* @type: Type of the nvmem storage
@@ -112,6 +113,7 @@ struct nvmem_config {
struct module *owner;
const struct nvmem_cell_info *cells;
int ncells;
+ bool add_legacy_fixed_of_cells;
const struct nvmem_keepout *keepout;
unsigned int nkeepout;
enum nvmem_type type;
--
2.35.3
On Wed, 27 Sep 2023 22:44:46 +0200, Rafał Miłecki wrote: > Binding for fixed NVMEM cells defined directly as NVMEM device subnodes > has been deprecated. It has been replaced by the "fixed-layout" NVMEM > layout binding. > > New syntax is meant to be clearer and should help avoiding imprecise > bindings. > > [...] Applied, thanks! [1/1] nvmem: add explicit config option to read old syntax fixed OF cells commit: ee73a9fae540adbb432bd2854a82409515c7c892 Best regards, -- Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Dne sreda, 27. september 2023 ob 22:44:46 CEST je Rafał Miłecki napisal(a): > From: Rafał Miłecki <rafal@milecki.pl> > > Binding for fixed NVMEM cells defined directly as NVMEM device subnodes > has been deprecated. It has been replaced by the "fixed-layout" NVMEM > layout binding. > > New syntax is meant to be clearer and should help avoiding imprecise > bindings. > > NVMEM subsystem already supports the new binding. It should be a good > idea to limit support for old syntax to existing drivers that actually > support & use it (we can't break backward compatibility!). That way we > additionally encourage new bindings & drivers to ignore deprecated > binding. > > It wasn't clear (to me) if rtc and w1 code actually uses old syntax > fixed cells. I enabled them to don't risk any breakage. > > Signed-off-by: Rafał Miłecki <rafal@milecki.pl> > [for meson-{efuse,mx-efuse}.c] > Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> > [for mtk-efuse.c, nvmem/core.c, nvmem-provider.h] > Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> > [MT8192, MT8195 Chromebooks] > Tested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> > [for microchip-otpc.c] > Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com> > [SAMA7G5-EK] > Tested-by: Claudiu Beznea <claudiu.beznea@microchip.com> > --- > V2: Fix stm32-romem.c typo breaking its compilation > Pick Martin's Acked-by > Add paragraph about layouts deprecating add_legacy_fixed_of_cells > V3: Update commit description: > 1. Make it clear we're NOT dropping fixed cells support > 2. Use nicer words (s/made sense/was totally safe/) > 3. Explain fixed cells layout thing > 4. Add paragraph with purpose of this commit > V4: Completely rewrite commit message. > Rename config option to "add_legacy_fixed_of_cells". > V5: Rebase patch > Cover sec-qfprom.c which uses legacy syntax > > drivers/mtd/mtdcore.c | 2 ++ > drivers/nvmem/apple-efuses.c | 1 + > drivers/nvmem/core.c | 8 +++++--- > drivers/nvmem/imx-ocotp-scu.c | 1 + > drivers/nvmem/imx-ocotp.c | 1 + > drivers/nvmem/meson-efuse.c | 1 + > drivers/nvmem/meson-mx-efuse.c | 1 + > drivers/nvmem/microchip-otpc.c | 1 + > drivers/nvmem/mtk-efuse.c | 1 + > drivers/nvmem/qcom-spmi-sdam.c | 1 + > drivers/nvmem/qfprom.c | 1 + > drivers/nvmem/rave-sp-eeprom.c | 1 + > drivers/nvmem/rockchip-efuse.c | 1 + > drivers/nvmem/sc27xx-efuse.c | 1 + > drivers/nvmem/sec-qfprom.c | 1 + > drivers/nvmem/sprd-efuse.c | 1 + > drivers/nvmem/stm32-romem.c | 1 + > drivers/nvmem/sunplus-ocotp.c | 1 + > drivers/nvmem/sunxi_sid.c | 1 + For sunxi: Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com> Best regards, Jernej > drivers/nvmem/uniphier-efuse.c | 1 + > drivers/nvmem/zynqmp_nvmem.c | 1 + > drivers/rtc/nvmem.c | 1 + > drivers/w1/slaves/w1_ds250x.c | 1 + > include/linux/nvmem-provider.h | 2 ++ > 24 files changed, 30 insertions(+), 3 deletions(-) > > diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c > index 9bd661be3ae9..fbf60d1364f0 100644 > --- a/drivers/mtd/mtdcore.c > +++ b/drivers/mtd/mtdcore.c > @@ -552,6 +552,7 @@ static int mtd_nvmem_add(struct mtd_info *mtd) > config.dev = &mtd->dev; > config.name = dev_name(&mtd->dev); > config.owner = THIS_MODULE; > + config.add_legacy_fixed_of_cells = of_device_is_compatible(node, "nvmem-cells"); > config.reg_read = mtd_nvmem_reg_read; > config.size = mtd->size; > config.word_size = 1; > @@ -898,6 +899,7 @@ static struct nvmem_device *mtd_otp_nvmem_register(struct mtd_info *mtd, > config.name = compatible; > config.id = NVMEM_DEVID_AUTO; > config.owner = THIS_MODULE; > + config.add_legacy_fixed_of_cells = true; > config.type = NVMEM_TYPE_OTP; > config.root_only = true; > config.ignore_wp = true; > diff --git a/drivers/nvmem/apple-efuses.c b/drivers/nvmem/apple-efuses.c > index 9b7c87102104..d3d49d22338b 100644 > --- a/drivers/nvmem/apple-efuses.c > +++ b/drivers/nvmem/apple-efuses.c > @@ -36,6 +36,7 @@ static int apple_efuses_probe(struct platform_device *pdev) > struct resource *res; > struct nvmem_config config = { > .dev = &pdev->dev, > + .add_legacy_fixed_of_cells = true, > .read_only = true, > .reg_read = apple_efuses_read, > .stride = sizeof(u32), > diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c > index eaf6a3fe8ca6..2710943f53c4 100644 > --- a/drivers/nvmem/core.c > +++ b/drivers/nvmem/core.c > @@ -997,9 +997,11 @@ struct nvmem_device *nvmem_register(const struct nvmem_config *config) > if (rval) > goto err_remove_cells; > > - rval = nvmem_add_cells_from_legacy_of(nvmem); > - if (rval) > - goto err_remove_cells; > + if (config->add_legacy_fixed_of_cells) { > + rval = nvmem_add_cells_from_legacy_of(nvmem); > + if (rval) > + goto err_remove_cells; > + } > > rval = nvmem_add_cells_from_fixed_layout(nvmem); > if (rval) > diff --git a/drivers/nvmem/imx-ocotp-scu.c b/drivers/nvmem/imx-ocotp-scu.c > index c38d9c1c3f48..517d83e11af2 100644 > --- a/drivers/nvmem/imx-ocotp-scu.c > +++ b/drivers/nvmem/imx-ocotp-scu.c > @@ -220,6 +220,7 @@ static int imx_scu_ocotp_write(void *context, unsigned int offset, > > static struct nvmem_config imx_scu_ocotp_nvmem_config = { > .name = "imx-scu-ocotp", > + .add_legacy_fixed_of_cells = true, > .read_only = false, > .word_size = 4, > .stride = 1, > diff --git a/drivers/nvmem/imx-ocotp.c b/drivers/nvmem/imx-ocotp.c > index a223d9537f22..434f197e27bf 100644 > --- a/drivers/nvmem/imx-ocotp.c > +++ b/drivers/nvmem/imx-ocotp.c > @@ -615,6 +615,7 @@ static int imx_ocotp_probe(struct platform_device *pdev) > return PTR_ERR(priv->clk); > > priv->params = of_device_get_match_data(&pdev->dev); > + imx_ocotp_nvmem_config.add_legacy_fixed_of_cells = true; > imx_ocotp_nvmem_config.size = 4 * priv->params->nregs; > imx_ocotp_nvmem_config.dev = dev; > imx_ocotp_nvmem_config.priv = priv; > diff --git a/drivers/nvmem/meson-efuse.c b/drivers/nvmem/meson-efuse.c > index d6b533497ce1..b922df99f9bc 100644 > --- a/drivers/nvmem/meson-efuse.c > +++ b/drivers/nvmem/meson-efuse.c > @@ -93,6 +93,7 @@ static int meson_efuse_probe(struct platform_device *pdev) > > econfig->dev = dev; > econfig->name = dev_name(dev); > + econfig->add_legacy_fixed_of_cells = true; > econfig->stride = 1; > econfig->word_size = 1; > econfig->reg_read = meson_efuse_read; > diff --git a/drivers/nvmem/meson-mx-efuse.c b/drivers/nvmem/meson-mx-efuse.c > index d6d7aeda31f9..3ff04d5ca8f8 100644 > --- a/drivers/nvmem/meson-mx-efuse.c > +++ b/drivers/nvmem/meson-mx-efuse.c > @@ -210,6 +210,7 @@ static int meson_mx_efuse_probe(struct platform_device *pdev) > efuse->config.owner = THIS_MODULE; > efuse->config.dev = &pdev->dev; > efuse->config.priv = efuse; > + efuse->config.add_legacy_fixed_of_cells = true; > efuse->config.stride = drvdata->word_size; > efuse->config.word_size = drvdata->word_size; > efuse->config.size = SZ_512; > diff --git a/drivers/nvmem/microchip-otpc.c b/drivers/nvmem/microchip-otpc.c > index 436e0dc4f337..7cf81738a3e0 100644 > --- a/drivers/nvmem/microchip-otpc.c > +++ b/drivers/nvmem/microchip-otpc.c > @@ -261,6 +261,7 @@ static int mchp_otpc_probe(struct platform_device *pdev) > return ret; > > mchp_nvmem_config.dev = otpc->dev; > + mchp_nvmem_config.add_legacy_fixed_of_cells = true; > mchp_nvmem_config.size = size; > mchp_nvmem_config.priv = otpc; > nvmem = devm_nvmem_register(&pdev->dev, &mchp_nvmem_config); > diff --git a/drivers/nvmem/mtk-efuse.c b/drivers/nvmem/mtk-efuse.c > index b36cd0dcc8c7..87c94686cfd2 100644 > --- a/drivers/nvmem/mtk-efuse.c > +++ b/drivers/nvmem/mtk-efuse.c > @@ -83,6 +83,7 @@ static int mtk_efuse_probe(struct platform_device *pdev) > return PTR_ERR(priv->base); > > pdata = device_get_match_data(dev); > + econfig.add_legacy_fixed_of_cells = true; > econfig.stride = 1; > econfig.word_size = 1; > econfig.reg_read = mtk_reg_read; > diff --git a/drivers/nvmem/qcom-spmi-sdam.c b/drivers/nvmem/qcom-spmi-sdam.c > index 70f2d4f2efbf..9aa8f42faa4c 100644 > --- a/drivers/nvmem/qcom-spmi-sdam.c > +++ b/drivers/nvmem/qcom-spmi-sdam.c > @@ -142,6 +142,7 @@ static int sdam_probe(struct platform_device *pdev) > sdam->sdam_config.name = "spmi_sdam"; > sdam->sdam_config.id = NVMEM_DEVID_AUTO; > sdam->sdam_config.owner = THIS_MODULE; > + sdam->sdam_config.add_legacy_fixed_of_cells = true; > sdam->sdam_config.stride = 1; > sdam->sdam_config.word_size = 1; > sdam->sdam_config.reg_read = sdam_read; > diff --git a/drivers/nvmem/qfprom.c b/drivers/nvmem/qfprom.c > index 525be03b7bba..116a39e804c7 100644 > --- a/drivers/nvmem/qfprom.c > +++ b/drivers/nvmem/qfprom.c > @@ -357,6 +357,7 @@ static int qfprom_probe(struct platform_device *pdev) > { > struct nvmem_config econfig = { > .name = "qfprom", > + .add_legacy_fixed_of_cells = true, > .stride = 1, > .word_size = 1, > .id = NVMEM_DEVID_AUTO, > diff --git a/drivers/nvmem/rave-sp-eeprom.c b/drivers/nvmem/rave-sp-eeprom.c > index df6a1c594b78..9ecf3873cbb7 100644 > --- a/drivers/nvmem/rave-sp-eeprom.c > +++ b/drivers/nvmem/rave-sp-eeprom.c > @@ -328,6 +328,7 @@ static int rave_sp_eeprom_probe(struct platform_device *pdev) > of_property_read_string(np, "zii,eeprom-name", &config.name); > config.priv = eeprom; > config.dev = dev; > + config.add_legacy_fixed_of_cells = true; > config.size = size; > config.reg_read = rave_sp_eeprom_reg_read; > config.reg_write = rave_sp_eeprom_reg_write; > diff --git a/drivers/nvmem/rockchip-efuse.c b/drivers/nvmem/rockchip-efuse.c > index 4004c5bece42..2b40978ddb18 100644 > --- a/drivers/nvmem/rockchip-efuse.c > +++ b/drivers/nvmem/rockchip-efuse.c > @@ -205,6 +205,7 @@ static int rockchip_rk3399_efuse_read(void *context, unsigned int offset, > > static struct nvmem_config econfig = { > .name = "rockchip-efuse", > + .add_legacy_fixed_of_cells = true, > .stride = 1, > .word_size = 1, > .read_only = true, > diff --git a/drivers/nvmem/sc27xx-efuse.c b/drivers/nvmem/sc27xx-efuse.c > index 2210da40dfbd..bff27011f4ff 100644 > --- a/drivers/nvmem/sc27xx-efuse.c > +++ b/drivers/nvmem/sc27xx-efuse.c > @@ -247,6 +247,7 @@ static int sc27xx_efuse_probe(struct platform_device *pdev) > econfig.reg_read = sc27xx_efuse_read; > econfig.priv = efuse; > econfig.dev = &pdev->dev; > + econfig.add_legacy_fixed_of_cells = true; > nvmem = devm_nvmem_register(&pdev->dev, &econfig); > if (IS_ERR(nvmem)) { > dev_err(&pdev->dev, "failed to register nvmem config\n"); > diff --git a/drivers/nvmem/sec-qfprom.c b/drivers/nvmem/sec-qfprom.c > index e48c2dc0c44b..19799b3fe00a 100644 > --- a/drivers/nvmem/sec-qfprom.c > +++ b/drivers/nvmem/sec-qfprom.c > @@ -47,6 +47,7 @@ static int sec_qfprom_probe(struct platform_device *pdev) > { > struct nvmem_config econfig = { > .name = "sec-qfprom", > + .add_legacy_fixed_of_cells = true, > .stride = 1, > .word_size = 1, > .id = NVMEM_DEVID_AUTO, > diff --git a/drivers/nvmem/sprd-efuse.c b/drivers/nvmem/sprd-efuse.c > index 7e6e31db4baa..bb3105f3291f 100644 > --- a/drivers/nvmem/sprd-efuse.c > +++ b/drivers/nvmem/sprd-efuse.c > @@ -408,6 +408,7 @@ static int sprd_efuse_probe(struct platform_device *pdev) > econfig.read_only = false; > econfig.name = "sprd-efuse"; > econfig.size = efuse->data->blk_nums * SPRD_EFUSE_BLOCK_WIDTH; > + econfig.add_legacy_fixed_of_cells = true; > econfig.reg_read = sprd_efuse_read; > econfig.reg_write = sprd_efuse_write; > econfig.priv = efuse; > diff --git a/drivers/nvmem/stm32-romem.c b/drivers/nvmem/stm32-romem.c > index 0f84044bd1ad..1541c20709d2 100644 > --- a/drivers/nvmem/stm32-romem.c > +++ b/drivers/nvmem/stm32-romem.c > @@ -207,6 +207,7 @@ static int stm32_romem_probe(struct platform_device *pdev) > priv->cfg.priv = priv; > priv->cfg.owner = THIS_MODULE; > priv->cfg.type = NVMEM_TYPE_OTP; > + priv->cfg.add_legacy_fixed_of_cells = true; > > priv->lower = 0; > > diff --git a/drivers/nvmem/sunplus-ocotp.c b/drivers/nvmem/sunplus-ocotp.c > index f3a18aa0a6c7..38f5d9df39cd 100644 > --- a/drivers/nvmem/sunplus-ocotp.c > +++ b/drivers/nvmem/sunplus-ocotp.c > @@ -145,6 +145,7 @@ static int sp_ocotp_read(void *priv, unsigned int offset, void *value, size_t by > > static struct nvmem_config sp_ocotp_nvmem_config = { > .name = "sp-ocotp", > + .add_legacy_fixed_of_cells = true, > .read_only = true, > .word_size = 1, > .size = QAC628_OTP_SIZE, > diff --git a/drivers/nvmem/sunxi_sid.c b/drivers/nvmem/sunxi_sid.c > index 5d364d85347f..ba14a76208ab 100644 > --- a/drivers/nvmem/sunxi_sid.c > +++ b/drivers/nvmem/sunxi_sid.c > @@ -153,6 +153,7 @@ static int sunxi_sid_probe(struct platform_device *pdev) > nvmem_cfg->dev = dev; > nvmem_cfg->name = "sunxi-sid"; > nvmem_cfg->type = NVMEM_TYPE_OTP; > + nvmem_cfg->add_legacy_fixed_of_cells = true; > nvmem_cfg->read_only = true; > nvmem_cfg->size = cfg->size; > nvmem_cfg->word_size = 1; > diff --git a/drivers/nvmem/uniphier-efuse.c b/drivers/nvmem/uniphier-efuse.c > index 0a1dbb80537e..6ad3295d3195 100644 > --- a/drivers/nvmem/uniphier-efuse.c > +++ b/drivers/nvmem/uniphier-efuse.c > @@ -52,6 +52,7 @@ static int uniphier_efuse_probe(struct platform_device *pdev) > econfig.size = resource_size(res); > econfig.priv = priv; > econfig.dev = dev; > + econfig.add_legacy_fixed_of_cells = true; > nvmem = devm_nvmem_register(dev, &econfig); > > return PTR_ERR_OR_ZERO(nvmem); > diff --git a/drivers/nvmem/zynqmp_nvmem.c b/drivers/nvmem/zynqmp_nvmem.c > index f49bb9a26d05..7f15aa89a9d0 100644 > --- a/drivers/nvmem/zynqmp_nvmem.c > +++ b/drivers/nvmem/zynqmp_nvmem.c > @@ -58,6 +58,7 @@ static int zynqmp_nvmem_probe(struct platform_device *pdev) > > priv->dev = dev; > econfig.dev = dev; > + econfig.add_legacy_fixed_of_cells = true; > econfig.reg_read = zynqmp_nvmem_read; > econfig.priv = priv; > > diff --git a/drivers/rtc/nvmem.c b/drivers/rtc/nvmem.c > index 07ede21cee34..37df7e80525b 100644 > --- a/drivers/rtc/nvmem.c > +++ b/drivers/rtc/nvmem.c > @@ -21,6 +21,7 @@ int devm_rtc_nvmem_register(struct rtc_device *rtc, > > nvmem_config->dev = dev; > nvmem_config->owner = rtc->owner; > + nvmem_config->add_legacy_fixed_of_cells = true; > nvmem = devm_nvmem_register(dev, nvmem_config); > if (IS_ERR(nvmem)) > dev_err(dev, "failed to register nvmem device for RTC\n"); > diff --git a/drivers/w1/slaves/w1_ds250x.c b/drivers/w1/slaves/w1_ds250x.c > index 7592c7050d1d..cb426f7dd23d 100644 > --- a/drivers/w1/slaves/w1_ds250x.c > +++ b/drivers/w1/slaves/w1_ds250x.c > @@ -168,6 +168,7 @@ static int w1_eprom_add_slave(struct w1_slave *sl) > struct nvmem_device *nvmem; > struct nvmem_config nvmem_cfg = { > .dev = &sl->dev, > + .add_legacy_fixed_of_cells = true, > .reg_read = w1_nvmem_read, > .type = NVMEM_TYPE_OTP, > .read_only = true, > diff --git a/include/linux/nvmem-provider.h b/include/linux/nvmem-provider.h > index dae26295e6be..1b81adebdb8b 100644 > --- a/include/linux/nvmem-provider.h > +++ b/include/linux/nvmem-provider.h > @@ -82,6 +82,7 @@ struct nvmem_cell_info { > * @owner: Pointer to exporter module. Used for refcounting. > * @cells: Optional array of pre-defined NVMEM cells. > * @ncells: Number of elements in cells. > + * @add_legacy_fixed_of_cells: Read fixed NVMEM cells from old OF syntax. > * @keepout: Optional array of keepout ranges (sorted ascending by start). > * @nkeepout: Number of elements in the keepout array. > * @type: Type of the nvmem storage > @@ -112,6 +113,7 @@ struct nvmem_config { > struct module *owner; > const struct nvmem_cell_info *cells; > int ncells; > + bool add_legacy_fixed_of_cells; > const struct nvmem_keepout *keepout; > unsigned int nkeepout; > enum nvmem_type type; >
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