| Message ID | 20230403225540.1931-1-zajec5@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [V4] nvmem: add explicit config option to read old syntax fixed OF cells | expand |
Dne torek, 04. april 2023 ob 00:55:40 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 It has been replaced by the "fixed-layout" NVMEM 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> > --- > This is based on top of them > [PATCH V6 3/3] nvmem: core: add support for fixed cells *layout* > > 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". > --- > 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/sprd-efuse.c | 1 + > drivers/nvmem/stm32-romem.c | 1 + > drivers/nvmem/sunplus-ocotp.c | 1 + > drivers/nvmem/sunxi_sid.c | 1 + For sunxi_sid: 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 ++ > 23 files changed, 29 insertions(+), 3 deletions(-)
Am Dienstag, 4. April 2023, 00:55:40 CEST schrieb Rafał Miłecki: > 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> > diff --git a/drivers/nvmem/rockchip-efuse.c b/drivers/nvmem/rockchip-efuse.c > index e4579de5d014..adc8bc70cffa 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, for rockchip-efuse.c Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Hi, On 4.04.2023 00:55, 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. > > 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. is there any chance I can have this accepted / pushed, please? It's a tiny optimization and it makes sure people don't use deprecated syntax with new drivers. I also noticed this will probably let me drop an unclear and non-intuitive no_of_node config option.
Hello Rafał, On 04.04.23 00:55, Rafał Miłecki wrote: > 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> Reviewed-by: Ahmad Fatoum <a.fatoum@pengutronix.de>, but small question below: > --- > diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c > index 60670b2f70b9..334adbae3690 100644 > --- a/drivers/mtd/mtdcore.c > +++ b/drivers/mtd/mtdcore.c > @@ -522,6 +522,7 @@ 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"); How does the new binding look like in this situation? Before it was: &{flash/partitions} { compatible = "fixed-partitions"; #address-cells = <1>; #size-cells = <1>; partition@0 { compatible = "nvmem-cells"; reg = <0 0x100>; #address-cells = <1>; #size-cells = <1>; calib@1 { reg = <1 1>; }; } }; It it now the same, but s/"nvmem-cells"/"fixed-layout"/ ? > config.reg_read = mtd_nvmem_reg_read; > config.size = mtd->size; > config.word_size = 1; > @@ -889,6 +890,7 @@ 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 b3d5a29477f9..80c1d0a30a26 100644 > --- a/drivers/nvmem/core.c > +++ b/drivers/nvmem/core.c > @@ -994,9 +994,11 @@ 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; > + } > > dev_dbg(&nvmem->dev, "Registering nvmem device %s\n", config->name); > > diff --git a/drivers/nvmem/imx-ocotp-scu.c b/drivers/nvmem/imx-ocotp-scu.c > index 399e1eb8b4c1..899e9108a521 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 ac0edb6398f1..0f7531a7e15d 100644 > --- a/drivers/nvmem/imx-ocotp.c > +++ b/drivers/nvmem/imx-ocotp.c > @@ -621,6 +621,7 @@ 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 13eb14316f46..34a911696155 100644 > --- a/drivers/nvmem/meson-mx-efuse.c > +++ b/drivers/nvmem/meson-mx-efuse.c > @@ -213,6 +213,7 @@ 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 f822790db49e..be618ba8b550 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 c1e893c8a247..e4dacde70fdd 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 c456011b75e8..75d98fd25cb6 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 e4579de5d014..adc8bc70cffa 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 c825fc902d10..8d13b81d5250 100644 > --- a/drivers/nvmem/sc27xx-efuse.c > +++ b/drivers/nvmem/sc27xx-efuse.c > @@ -248,6 +248,7 @@ 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/sprd-efuse.c b/drivers/nvmem/sprd-efuse.c > index 4f1fcbfec394..ffc0cbfe87b3 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 38d0bf557129..a44c2d6c20f9 100644 > --- a/drivers/nvmem/stm32-romem.c > +++ b/drivers/nvmem/stm32-romem.c > @@ -208,6 +208,7 @@ 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 52b928a7a6d5..1b6632fb81ea 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 a970f1741cc6..155f07afd9cc 100644 > --- a/drivers/nvmem/sunxi_sid.c > +++ b/drivers/nvmem/sunxi_sid.c > @@ -156,6 +156,7 @@ 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 aca910b3b6f8..d16ed22d105c 100644 > --- a/drivers/nvmem/uniphier-efuse.c > +++ b/drivers/nvmem/uniphier-efuse.c > @@ -53,6 +53,7 @@ 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 e28d7b133e11..23cceb823cd0 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;
Hi Ahmad, On 2023-07-18 11:08, Ahmad Fatoum wrote: >> diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c >> index 60670b2f70b9..334adbae3690 100644 >> --- a/drivers/mtd/mtdcore.c >> +++ b/drivers/mtd/mtdcore.c >> @@ -522,6 +522,7 @@ 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"); > > How does the new binding look like in this situation? > > Before it was: > > &{flash/partitions} { > compatible = "fixed-partitions"; > #address-cells = <1>; > #size-cells = <1>; > > partition@0 { > compatible = "nvmem-cells"; > reg = <0 0x100>; > #address-cells = <1>; > #size-cells = <1>; > > calib@1 { > reg = <1 1>; > }; > } > }; > > It it now the same, but s/"nvmem-cells"/"fixed-layout"/ ? Please take a look at those commits and examples: bd912c991d2e ("dt-bindings: nvmem: layouts: add fixed-layout") https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=bd912c991d2ef079a32558f057b8663bcf1fb6fc fa7fbe53ecdc ("dt-bindings: nvmem: convert base example to use NVMEM fixed cells layout") https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fa7fbe53ecdc4e7d549a9f73a40e257b0046b4b9 Basically you need a "nvmem-layout" node with: compatible = "fixed-layout"; So in your case that would be: &{flash/partitions} { compatible = "fixed-partitions"; partition@0 { reg = <0 0x100>; nvmem-layout { compatible = "fixed-layout"; #address-cells = <1>; #size-cells = <1>; calib@1 { reg = <1 1>; }; }; } };
Hi Rafal, thankyou for the patch and having patience. Patch, does not apply on rc1. Can you rebase this and if possible include drivers/nvmem/sec-qfprom.c thanks, Srini On 03/04/2023 23:55, Rafał Miłecki wrote: > 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> > --- > This is based on top of them > [PATCH V6 3/3] nvmem: core: add support for fixed cells *layout* > > 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". > --- > 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/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 ++ > 23 files changed, 29 insertions(+), 3 deletions(-) > > diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c > index 60670b2f70b9..334adbae3690 100644 > --- a/drivers/mtd/mtdcore.c > +++ b/drivers/mtd/mtdcore.c > @@ -522,6 +522,7 @@ 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; > @@ -889,6 +890,7 @@ 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 b3d5a29477f9..80c1d0a30a26 100644 > --- a/drivers/nvmem/core.c > +++ b/drivers/nvmem/core.c > @@ -994,9 +994,11 @@ 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; > + } > > dev_dbg(&nvmem->dev, "Registering nvmem device %s\n", config->name); > > diff --git a/drivers/nvmem/imx-ocotp-scu.c b/drivers/nvmem/imx-ocotp-scu.c > index 399e1eb8b4c1..899e9108a521 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 ac0edb6398f1..0f7531a7e15d 100644 > --- a/drivers/nvmem/imx-ocotp.c > +++ b/drivers/nvmem/imx-ocotp.c > @@ -621,6 +621,7 @@ 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 13eb14316f46..34a911696155 100644 > --- a/drivers/nvmem/meson-mx-efuse.c > +++ b/drivers/nvmem/meson-mx-efuse.c > @@ -213,6 +213,7 @@ 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 f822790db49e..be618ba8b550 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 c1e893c8a247..e4dacde70fdd 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 c456011b75e8..75d98fd25cb6 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 e4579de5d014..adc8bc70cffa 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 c825fc902d10..8d13b81d5250 100644 > --- a/drivers/nvmem/sc27xx-efuse.c > +++ b/drivers/nvmem/sc27xx-efuse.c > @@ -248,6 +248,7 @@ 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/sprd-efuse.c b/drivers/nvmem/sprd-efuse.c > index 4f1fcbfec394..ffc0cbfe87b3 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 38d0bf557129..a44c2d6c20f9 100644 > --- a/drivers/nvmem/stm32-romem.c > +++ b/drivers/nvmem/stm32-romem.c > @@ -208,6 +208,7 @@ 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 52b928a7a6d5..1b6632fb81ea 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 a970f1741cc6..155f07afd9cc 100644 > --- a/drivers/nvmem/sunxi_sid.c > +++ b/drivers/nvmem/sunxi_sid.c > @@ -156,6 +156,7 @@ 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 aca910b3b6f8..d16ed22d105c 100644 > --- a/drivers/nvmem/uniphier-efuse.c > +++ b/drivers/nvmem/uniphier-efuse.c > @@ -53,6 +53,7 @@ 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 e28d7b133e11..23cceb823cd0 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;
diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c index 60670b2f70b9..334adbae3690 100644 --- a/drivers/mtd/mtdcore.c +++ b/drivers/mtd/mtdcore.c @@ -522,6 +522,7 @@ 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; @@ -889,6 +890,7 @@ 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 b3d5a29477f9..80c1d0a30a26 100644 --- a/drivers/nvmem/core.c +++ b/drivers/nvmem/core.c @@ -994,9 +994,11 @@ 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; + } dev_dbg(&nvmem->dev, "Registering nvmem device %s\n", config->name); diff --git a/drivers/nvmem/imx-ocotp-scu.c b/drivers/nvmem/imx-ocotp-scu.c index 399e1eb8b4c1..899e9108a521 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 ac0edb6398f1..0f7531a7e15d 100644 --- a/drivers/nvmem/imx-ocotp.c +++ b/drivers/nvmem/imx-ocotp.c @@ -621,6 +621,7 @@ 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 13eb14316f46..34a911696155 100644 --- a/drivers/nvmem/meson-mx-efuse.c +++ b/drivers/nvmem/meson-mx-efuse.c @@ -213,6 +213,7 @@ 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 f822790db49e..be618ba8b550 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 c1e893c8a247..e4dacde70fdd 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 c456011b75e8..75d98fd25cb6 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 e4579de5d014..adc8bc70cffa 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 c825fc902d10..8d13b81d5250 100644 --- a/drivers/nvmem/sc27xx-efuse.c +++ b/drivers/nvmem/sc27xx-efuse.c @@ -248,6 +248,7 @@ 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/sprd-efuse.c b/drivers/nvmem/sprd-efuse.c index 4f1fcbfec394..ffc0cbfe87b3 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 38d0bf557129..a44c2d6c20f9 100644 --- a/drivers/nvmem/stm32-romem.c +++ b/drivers/nvmem/stm32-romem.c @@ -208,6 +208,7 @@ 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 52b928a7a6d5..1b6632fb81ea 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 a970f1741cc6..155f07afd9cc 100644 --- a/drivers/nvmem/sunxi_sid.c +++ b/drivers/nvmem/sunxi_sid.c @@ -156,6 +156,7 @@ 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 aca910b3b6f8..d16ed22d105c 100644 --- a/drivers/nvmem/uniphier-efuse.c +++ b/drivers/nvmem/uniphier-efuse.c @@ -53,6 +53,7 @@ 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 e28d7b133e11..23cceb823cd0 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;