* [PATCH v2 0/3] Add Samsung S6D7AA0 panel controller driver @ 2023-04-16 13:07 ` Artur Weber 0 siblings, 0 replies; 10+ messages in thread From: Artur Weber @ 2023-04-16 13:07 UTC (permalink / raw) To: thierry.reding Cc: sam, airlied, daniel, robh+dt, krzysztof.kozlowski+dt, dri-devel, devicetree, linux-kernel, ~postmarketos/upstreaming, Artur Weber This patchset adds initial support for Samsung S6D7AA0-based panels. Currently, only the S6D7AA0-LSL080AL02 panel used in the Samsung Galaxy Tab 3 8.0 family of tablets is supported; other panels can be added in the future. Changed in v2: - Added commit messages for dt-bindings and MAINTAINERS entry commits - dt-bindings: Applied suggestions from Krzysztof Kozlowski - driver: Removed unused panel_name property from desc struct Artur Weber (3): dt-bindings: panel: Add Samsung S6D7AA0 LCD controller bindings drm/panel: Add Samsung S6D7AA0 panel controller driver MAINTAINERS: Add entry for Samsung S6D7AA0 LCD panel controller driver .../display/panel/samsung,s6d7aa0.yaml | 51 +++ MAINTAINERS | 6 + drivers/gpu/drm/panel/Kconfig | 7 + drivers/gpu/drm/panel/Makefile | 1 + drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c | 395 ++++++++++++++++++ 5 files changed, 460 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/panel/samsung,s6d7aa0.yaml create mode 100644 drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c -- 2.40.0 ^ permalink raw reply [flat|nested] 10+ messages in thread
* [PATCH v2 0/3] Add Samsung S6D7AA0 panel controller driver @ 2023-04-16 13:07 ` Artur Weber 0 siblings, 0 replies; 10+ messages in thread From: Artur Weber @ 2023-04-16 13:07 UTC (permalink / raw) To: thierry.reding Cc: devicetree, sam, linux-kernel, dri-devel, robh+dt, ~postmarketos/upstreaming, krzysztof.kozlowski+dt, Artur Weber This patchset adds initial support for Samsung S6D7AA0-based panels. Currently, only the S6D7AA0-LSL080AL02 panel used in the Samsung Galaxy Tab 3 8.0 family of tablets is supported; other panels can be added in the future. Changed in v2: - Added commit messages for dt-bindings and MAINTAINERS entry commits - dt-bindings: Applied suggestions from Krzysztof Kozlowski - driver: Removed unused panel_name property from desc struct Artur Weber (3): dt-bindings: panel: Add Samsung S6D7AA0 LCD controller bindings drm/panel: Add Samsung S6D7AA0 panel controller driver MAINTAINERS: Add entry for Samsung S6D7AA0 LCD panel controller driver .../display/panel/samsung,s6d7aa0.yaml | 51 +++ MAINTAINERS | 6 + drivers/gpu/drm/panel/Kconfig | 7 + drivers/gpu/drm/panel/Makefile | 1 + drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c | 395 ++++++++++++++++++ 5 files changed, 460 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/panel/samsung,s6d7aa0.yaml create mode 100644 drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c -- 2.40.0 ^ permalink raw reply [flat|nested] 10+ messages in thread
* [PATCH v2 1/3] dt-bindings: display: panel: Add Samsung S6D7AA0 LCD panel controller 2023-04-16 13:07 ` Artur Weber @ 2023-04-16 13:07 ` Artur Weber -1 siblings, 0 replies; 10+ messages in thread From: Artur Weber @ 2023-04-16 13:07 UTC (permalink / raw) To: thierry.reding Cc: sam, airlied, daniel, robh+dt, krzysztof.kozlowski+dt, dri-devel, devicetree, linux-kernel, ~postmarketos/upstreaming, Artur Weber Add bindings for the S6D7AA0 LCD panel controller, including the S6D7AA0-LSL080AL02 panel used in the Samsung Galaxy Tab 3 8.0 family of tablets. Signed-off-by: Artur Weber <aweber.kernel@gmail.com> --- Changed in v2: - Updated commit message - Applied suggestions from Krzysztof Kozlowski --- .../display/panel/samsung,s6d7aa0.yaml | 51 +++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/panel/samsung,s6d7aa0.yaml diff --git a/Documentation/devicetree/bindings/display/panel/samsung,s6d7aa0.yaml b/Documentation/devicetree/bindings/display/panel/samsung,s6d7aa0.yaml new file mode 100644 index 000000000000..969cef7738b8 --- /dev/null +++ b/Documentation/devicetree/bindings/display/panel/samsung,s6d7aa0.yaml @@ -0,0 +1,51 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/panel/samsung,s6d7aa0.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Samsung S6D7AA0 MIPI-DSI LCD panel controller + +maintainers: + - Artur Weber <aweber.kernel@gmail.com> + +allOf: + - $ref: panel-common.yaml# + +properties: + compatible: + const: samsung,s6d7aa0-lsl080al02 + + reg: true + reset-gpios: true + backlight: true + + enable-supply: + description: Enable supply + +required: + - compatible + - reset-gpios + - enable-supply + - backlight + +additionalProperties: false + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + + dsi { + #address-cells = <1>; + #size-cells = <0>; + + panel@0 { + compatible = "samsung,s6d7aa0-lsl080al02"; + reg = <0>; + enable-supply = <&lcd_enable_supply>; + reset-gpios = <&gpf0 4 GPIO_ACTIVE_LOW>; + backlight = <&backlight>; + }; + }; + +... -- 2.40.0 ^ permalink raw reply related [flat|nested] 10+ messages in thread
* [PATCH v2 1/3] dt-bindings: display: panel: Add Samsung S6D7AA0 LCD panel controller @ 2023-04-16 13:07 ` Artur Weber 0 siblings, 0 replies; 10+ messages in thread From: Artur Weber @ 2023-04-16 13:07 UTC (permalink / raw) To: thierry.reding Cc: devicetree, sam, linux-kernel, dri-devel, robh+dt, ~postmarketos/upstreaming, krzysztof.kozlowski+dt, Artur Weber Add bindings for the S6D7AA0 LCD panel controller, including the S6D7AA0-LSL080AL02 panel used in the Samsung Galaxy Tab 3 8.0 family of tablets. Signed-off-by: Artur Weber <aweber.kernel@gmail.com> --- Changed in v2: - Updated commit message - Applied suggestions from Krzysztof Kozlowski --- .../display/panel/samsung,s6d7aa0.yaml | 51 +++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/panel/samsung,s6d7aa0.yaml diff --git a/Documentation/devicetree/bindings/display/panel/samsung,s6d7aa0.yaml b/Documentation/devicetree/bindings/display/panel/samsung,s6d7aa0.yaml new file mode 100644 index 000000000000..969cef7738b8 --- /dev/null +++ b/Documentation/devicetree/bindings/display/panel/samsung,s6d7aa0.yaml @@ -0,0 +1,51 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/panel/samsung,s6d7aa0.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Samsung S6D7AA0 MIPI-DSI LCD panel controller + +maintainers: + - Artur Weber <aweber.kernel@gmail.com> + +allOf: + - $ref: panel-common.yaml# + +properties: + compatible: + const: samsung,s6d7aa0-lsl080al02 + + reg: true + reset-gpios: true + backlight: true + + enable-supply: + description: Enable supply + +required: + - compatible + - reset-gpios + - enable-supply + - backlight + +additionalProperties: false + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + + dsi { + #address-cells = <1>; + #size-cells = <0>; + + panel@0 { + compatible = "samsung,s6d7aa0-lsl080al02"; + reg = <0>; + enable-supply = <&lcd_enable_supply>; + reset-gpios = <&gpf0 4 GPIO_ACTIVE_LOW>; + backlight = <&backlight>; + }; + }; + +... -- 2.40.0 ^ permalink raw reply related [flat|nested] 10+ messages in thread
* Re: [PATCH v2 1/3] dt-bindings: display: panel: Add Samsung S6D7AA0 LCD panel controller 2023-04-16 13:07 ` Artur Weber @ 2023-04-16 13:09 ` Artur Weber -1 siblings, 0 replies; 10+ messages in thread From: Artur Weber @ 2023-04-16 13:09 UTC (permalink / raw) To: thierry.reding Cc: sam, airlied, daniel, robh+dt, krzysztof.kozlowski+dt, dri-devel, devicetree, linux-kernel, ~postmarketos/upstreaming On 16/04/2023 15:07, Artur Weber wrote: > Add bindings for the S6D7AA0 LCD panel controller, including the > S6D7AA0-LSL080AL02 panel used in the Samsung Galaxy Tab 3 8.0 family > of tablets. > > Signed-off-by: Artur Weber <aweber.kernel@gmail.com> > --- > Changed in v2: > - Updated commit message > - Applied suggestions from Krzysztof Kozlowski > --- > .../display/panel/samsung,s6d7aa0.yaml | 51 +++++++++++++++++++ > 1 file changed, 51 insertions(+) > create mode 100644 Documentation/devicetree/bindings/display/panel/samsung,s6d7aa0.yaml > > diff --git a/Documentation/devicetree/bindings/display/panel/samsung,s6d7aa0.yaml b/Documentation/devicetree/bindings/display/panel/samsung,s6d7aa0.yaml > new file mode 100644 > index 000000000000..969cef7738b8 > --- /dev/null > +++ b/Documentation/devicetree/bindings/display/panel/samsung,s6d7aa0.yaml > @@ -0,0 +1,51 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/display/panel/samsung,s6d7aa0.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Samsung S6D7AA0 MIPI-DSI LCD panel controller > + > +maintainers: > + - Artur Weber <aweber.kernel@gmail.com> > + > +allOf: > + - $ref: panel-common.yaml# > + > +properties: > + compatible: > + const: samsung,s6d7aa0-lsl080al02 > + > + reg: true > + reset-gpios: true > + backlight: true > + > + enable-supply: > + description: Enable supply > + > +required: > + - compatible > + - reset-gpios > + - enable-supply > + - backlight > + > +additionalProperties: false > + > +examples: > + - | > + #include <dt-bindings/gpio/gpio.h> > + > + dsi { > + #address-cells = <1>; > + #size-cells = <0>; > + > + panel@0 { > + compatible = "samsung,s6d7aa0-lsl080al02"; > + reg = <0>; > + enable-supply = <&lcd_enable_supply>; > + reset-gpios = <&gpf0 4 GPIO_ACTIVE_LOW>; > + backlight = <&backlight>; > + }; > + }; > + > +... Wrong patch file, please ignore. Will re-send in a second. ^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH v2 1/3] dt-bindings: display: panel: Add Samsung S6D7AA0 LCD panel controller @ 2023-04-16 13:09 ` Artur Weber 0 siblings, 0 replies; 10+ messages in thread From: Artur Weber @ 2023-04-16 13:09 UTC (permalink / raw) To: thierry.reding Cc: devicetree, sam, linux-kernel, dri-devel, robh+dt, ~postmarketos/upstreaming, krzysztof.kozlowski+dt On 16/04/2023 15:07, Artur Weber wrote: > Add bindings for the S6D7AA0 LCD panel controller, including the > S6D7AA0-LSL080AL02 panel used in the Samsung Galaxy Tab 3 8.0 family > of tablets. > > Signed-off-by: Artur Weber <aweber.kernel@gmail.com> > --- > Changed in v2: > - Updated commit message > - Applied suggestions from Krzysztof Kozlowski > --- > .../display/panel/samsung,s6d7aa0.yaml | 51 +++++++++++++++++++ > 1 file changed, 51 insertions(+) > create mode 100644 Documentation/devicetree/bindings/display/panel/samsung,s6d7aa0.yaml > > diff --git a/Documentation/devicetree/bindings/display/panel/samsung,s6d7aa0.yaml b/Documentation/devicetree/bindings/display/panel/samsung,s6d7aa0.yaml > new file mode 100644 > index 000000000000..969cef7738b8 > --- /dev/null > +++ b/Documentation/devicetree/bindings/display/panel/samsung,s6d7aa0.yaml > @@ -0,0 +1,51 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/display/panel/samsung,s6d7aa0.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Samsung S6D7AA0 MIPI-DSI LCD panel controller > + > +maintainers: > + - Artur Weber <aweber.kernel@gmail.com> > + > +allOf: > + - $ref: panel-common.yaml# > + > +properties: > + compatible: > + const: samsung,s6d7aa0-lsl080al02 > + > + reg: true > + reset-gpios: true > + backlight: true > + > + enable-supply: > + description: Enable supply > + > +required: > + - compatible > + - reset-gpios > + - enable-supply > + - backlight > + > +additionalProperties: false > + > +examples: > + - | > + #include <dt-bindings/gpio/gpio.h> > + > + dsi { > + #address-cells = <1>; > + #size-cells = <0>; > + > + panel@0 { > + compatible = "samsung,s6d7aa0-lsl080al02"; > + reg = <0>; > + enable-supply = <&lcd_enable_supply>; > + reset-gpios = <&gpf0 4 GPIO_ACTIVE_LOW>; > + backlight = <&backlight>; > + }; > + }; > + > +... Wrong patch file, please ignore. Will re-send in a second. ^ permalink raw reply [flat|nested] 10+ messages in thread
* [PATCH v2 2/3] drm/panel: Add Samsung S6D7AA0 panel controller driver 2023-04-16 13:07 ` Artur Weber @ 2023-04-16 13:07 ` Artur Weber -1 siblings, 0 replies; 10+ messages in thread From: Artur Weber @ 2023-04-16 13:07 UTC (permalink / raw) To: thierry.reding Cc: sam, airlied, daniel, robh+dt, krzysztof.kozlowski+dt, dri-devel, devicetree, linux-kernel, ~postmarketos/upstreaming, Artur Weber Initial driver for S6D7AA0-controlled panels, currently only for the LSL080AL02 panel used in the Samsung Galaxy Tab 3 8.0 family of tablets. It should be possible to extend this driver to work with other panels using this IC. Signed-off-by: Artur Weber <aweber.kernel@gmail.com> --- Changed in v2: - Removed unused panel_name property from desc struct --- drivers/gpu/drm/panel/Kconfig | 7 + drivers/gpu/drm/panel/Makefile | 1 + drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c | 395 ++++++++++++++++++ 3 files changed, 403 insertions(+) create mode 100644 drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig index 8eeee71c0000..2ce9d1a45625 100644 --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -532,6 +532,13 @@ config DRM_PANEL_SAMSUNG_S6D27A1 This panel can be found in Samsung Galaxy Ace 2 GT-I8160 mobile phone. +config DRM_PANEL_SAMSUNG_S6D7AA0 + tristate "Samsung S6D7AA0 MIPI-DSI video mode panel controller" + depends on OF + depends on BACKLIGHT_CLASS_DEVICE + select DRM_MIPI_DSI + select VIDEOMODE_HELPERS + config DRM_PANEL_SAMSUNG_S6E3HA2 tristate "Samsung S6E3HA2 DSI video mode panel" depends on OF diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile index c05aa9e23907..193f3067865d 100644 --- a/drivers/gpu/drm/panel/Makefile +++ b/drivers/gpu/drm/panel/Makefile @@ -52,6 +52,7 @@ obj-$(CONFIG_DRM_PANEL_SAMSUNG_DB7430) += panel-samsung-db7430.o obj-$(CONFIG_DRM_PANEL_SAMSUNG_LD9040) += panel-samsung-ld9040.o obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6D16D0) += panel-samsung-s6d16d0.o obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6D27A1) += panel-samsung-s6d27a1.o +obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6D7AA0) += panel-samsung-s6d7aa0.o obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E3HA2) += panel-samsung-s6e3ha2.o obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E63J0X03) += panel-samsung-s6e63j0x03.o obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E63M0) += panel-samsung-s6e63m0.o diff --git a/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c b/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c new file mode 100644 index 000000000000..408e4082de74 --- /dev/null +++ b/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c @@ -0,0 +1,395 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Samsung S6D7AA0 MIPI-DSI TFT LCD controller drm_panel driver. + * + * Copyright (C) 2022 Artur Weber <aweber.kernel@gmail.com> + */ + +#include <linux/backlight.h> +#include <linux/delay.h> +#include <linux/gpio/consumer.h> +#include <linux/module.h> +#include <linux/regulator/consumer.h> +#include <linux/of.h> +#include <linux/of_device.h> + +#include <video/mipi_display.h> +#include <drm/drm_mipi_dsi.h> +#include <drm/drm_modes.h> +#include <drm/drm_panel.h> + +/* Manufacturer command set */ +#define CMD_BL_CTL 0xc3 +#define CMD_OTP_RELOAD 0xd0 +#define CMD_PASSWD1 0xf0 +#define CMD_PASSWD2 0xf1 +#define CMD_PASSWD3 0xfc + +struct s6d7aa0 { + struct drm_panel panel; + struct mipi_dsi_device *dsi; + struct gpio_desc *reset_gpio; + struct regulator *enable_supply; + const struct s6d7aa0_panel_desc *desc; + bool prepared; +}; + +struct s6d7aa0_panel_desc { + int (*init_func)(struct s6d7aa0 *ctx); + const struct drm_display_mode drm_mode; + unsigned long mode_flags; + u32 bus_flags; + bool use_passwd3; +}; + +static inline struct s6d7aa0 *panel_to_s6d7aa0(struct drm_panel *panel) +{ + return container_of(panel, struct s6d7aa0, panel); +} + +static void s6d7aa0_reset(struct s6d7aa0 *ctx) +{ + gpiod_set_value_cansleep(ctx->reset_gpio, 0); + msleep(50); + gpiod_set_value_cansleep(ctx->reset_gpio, 1); + msleep(50); + gpiod_set_value_cansleep(ctx->reset_gpio, 0); + msleep(50); +} + +static int s6d7aa0_lock(struct s6d7aa0 *ctx, bool lock) +{ + struct mipi_dsi_device *dsi = ctx->dsi; + + if (lock) { + mipi_dsi_dcs_write_seq(dsi, CMD_PASSWD1, 0xa5, 0xa5); + mipi_dsi_dcs_write_seq(dsi, CMD_PASSWD2, 0xa5, 0xa5); + if (ctx->desc->use_passwd3) + mipi_dsi_dcs_write_seq(dsi, CMD_PASSWD3, 0x5a, 0x5a); + } else { + mipi_dsi_dcs_write_seq(dsi, CMD_PASSWD1, 0x5a, 0x5a); + mipi_dsi_dcs_write_seq(dsi, CMD_PASSWD2, 0x5a, 0x5a); + if (ctx->desc->use_passwd3) + mipi_dsi_dcs_write_seq(dsi, CMD_PASSWD3, 0xa5, 0xa5); + } + + return 0; +} + +static int s6d7aa0_bl_ctl_on(struct s6d7aa0 *ctx, bool enable) +{ + struct mipi_dsi_device *dsi = ctx->dsi; + + if (enable) + mipi_dsi_dcs_write_seq(dsi, CMD_BL_CTL, 0x40, 0x00, 0x28); + else + mipi_dsi_dcs_write_seq(dsi, CMD_BL_CTL, 0x40, 0x00, 0x20); + + return 0; +} + +static int s6d7aa0_on(struct s6d7aa0 *ctx) +{ + struct mipi_dsi_device *dsi = ctx->dsi; + struct device *dev = &dsi->dev; + int ret; + + dsi->mode_flags |= MIPI_DSI_MODE_LPM; + + s6d7aa0_reset(ctx); + + ret = ctx->desc->init_func(ctx); + if (ret < 0) { + dev_err(dev, "Failed to initialize panel: %d\n", ret); + gpiod_set_value_cansleep(ctx->reset_gpio, 1); + return ret; + } + + ret = mipi_dsi_dcs_set_display_on(dsi); + if (ret < 0) { + dev_err(dev, "Failed to set display on: %d\n", ret); + return ret; + } + + return 0; +} + +static int s6d7aa0_off(struct s6d7aa0 *ctx) +{ + struct mipi_dsi_device *dsi = ctx->dsi; + struct device *dev = &dsi->dev; + int ret; + + dsi->mode_flags &= ~MIPI_DSI_MODE_LPM; + + ret = mipi_dsi_dcs_set_display_off(dsi); + if (ret < 0) { + dev_err(dev, "Failed to set display off: %d\n", ret); + return ret; + } + msleep(64); + + ret = s6d7aa0_bl_ctl_on(ctx, false); + if (ret < 0) { + dev_err(dev, "Failed to disable backlight control: %d\n", ret); + return ret; + } + usleep_range(1000, 1500); + + ret = mipi_dsi_dcs_enter_sleep_mode(dsi); + if (ret < 0) { + dev_err(dev, "Failed to enter sleep mode: %d\n", ret); + return ret; + } + msleep(120); + + return 0; +} + +static int s6d7aa0_prepare(struct drm_panel *panel) +{ + struct s6d7aa0 *ctx = panel_to_s6d7aa0(panel); + struct device *dev = &ctx->dsi->dev; + int ret; + + if (ctx->prepared) + return 0; + + ret = regulator_enable(ctx->enable_supply); + if (ret) { + dev_err(dev, "Failed to enable regulator: %d\n", ret); + return ret; + } + + ret = s6d7aa0_on(ctx); + if (ret < 0) { + dev_err(dev, "Failed to initialize panel: %d\n", ret); + gpiod_set_value_cansleep(ctx->reset_gpio, 1); + return ret; + } + + ctx->prepared = true; + return 0; +} + +static int s6d7aa0_disable(struct drm_panel *panel) +{ + struct s6d7aa0 *ctx = panel_to_s6d7aa0(panel); + struct device *dev = &ctx->dsi->dev; + int ret; + + ret = s6d7aa0_off(ctx); + if (ret < 0) + dev_err(dev, "Failed to un-initialize panel: %d\n", ret); + + return 0; +} + +static int s6d7aa0_unprepare(struct drm_panel *panel) +{ + struct s6d7aa0 *ctx = panel_to_s6d7aa0(panel); + + if (!ctx->prepared) + return 0; + + gpiod_set_value_cansleep(ctx->reset_gpio, 1); + regulator_disable(ctx->enable_supply); + + ctx->prepared = false; + return 0; +} + +/* Initialization code and structures for LSL080AL02 panel */ + +static int s6d7aa0_lsl080al02_init(struct s6d7aa0 *ctx) +{ + struct mipi_dsi_device *dsi = ctx->dsi; + struct device *dev = &dsi->dev; + int ret; + + usleep_range(20000, 25000); + + ret = s6d7aa0_lock(ctx, false); + if (ret < 0) { + dev_err(dev, "Failed to unlock registers: %d\n", ret); + return ret; + } + + mipi_dsi_dcs_write_seq(dsi, CMD_OTP_RELOAD, 0x00, 0x10); + usleep_range(1000, 1500); + + mipi_dsi_dcs_write_seq(dsi, 0xb6, 0x10); /* SEQ_B6_PARAM_8_R01 */ + + ret = s6d7aa0_bl_ctl_on(ctx, true); + if (ret < 0) { + dev_err(dev, "Failed to enable backlight control: %d\n", ret); + return ret; + } + usleep_range(5000, 6000); + mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_SET_ADDRESS_MODE, 0x04); + + ret = mipi_dsi_dcs_exit_sleep_mode(dsi); + if (ret < 0) { + dev_err(dev, "Failed to exit sleep mode: %d\n", ret); + return ret; + } + + msleep(120); + mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_SET_ADDRESS_MODE, 0x00); + + ret = s6d7aa0_lock(ctx, true); + if (ret < 0) { + dev_err(dev, "Failed to lock registers: %d\n", ret); + return ret; + } + + ret = mipi_dsi_dcs_set_display_on(dsi); + if (ret < 0) { + dev_err(dev, "Failed to set display on: %d\n", ret); + return ret; + } + + return 0; +}; + +static const struct drm_display_mode s6d7aa0_lsl080al02_mode = { + .clock = (800 + 16 + 4 + 140) * (1280 + 8 + 4 + 4) * 60 / 1000, + .hdisplay = 800, + .hsync_start = 800 + 16, + .hsync_end = 800 + 16 + 4, + .htotal = 800 + 16 + 4 + 140, + .vdisplay = 1280, + .vsync_start = 1280 + 8, + .vsync_end = 1280 + 8 + 4, + .vtotal = 1280 + 8 + 4 + 4, + .width_mm = 108, + .height_mm = 173, +}; + +static const struct s6d7aa0_panel_desc s6d7aa0_lsl080al02_desc = { + .init_func = s6d7aa0_lsl080al02_init, + .drm_mode = s6d7aa0_lsl080al02_mode, + .mode_flags = MIPI_DSI_MODE_VSYNC_FLUSH, + .bus_flags = DRM_BUS_FLAG_DE_HIGH, + .use_passwd3 = false, +}; + +static int s6d7aa0_get_modes(struct drm_panel *panel, + struct drm_connector *connector) +{ + struct drm_display_mode *mode; + struct s6d7aa0 *ctx; + + ctx = container_of(panel, struct s6d7aa0, panel); + if (!ctx) + return -EINVAL; + + mode = drm_mode_duplicate(connector->dev, &ctx->desc->drm_mode); + if (!mode) + return -ENOMEM; + + drm_mode_set_name(mode); + + mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; + connector->display_info.width_mm = mode->width_mm; + connector->display_info.height_mm = mode->height_mm; + connector->display_info.bus_flags = ctx->desc->bus_flags; + drm_mode_probed_add(connector, mode); + + return 1; +} + +static const struct drm_panel_funcs s6d7aa0_panel_funcs = { + .disable = s6d7aa0_disable, + .prepare = s6d7aa0_prepare, + .unprepare = s6d7aa0_unprepare, + .get_modes = s6d7aa0_get_modes, +}; + +static int s6d7aa0_probe(struct mipi_dsi_device *dsi) +{ + struct device *dev = &dsi->dev; + struct s6d7aa0 *ctx; + int ret; + + ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); + if (!ctx) + return -ENOMEM; + + ctx->desc = of_device_get_match_data(dev); + if (!ctx->desc) + return -ENODEV; + + ctx->enable_supply = devm_regulator_get(dev, "enable"); + if (IS_ERR(ctx->enable_supply)) + return dev_err_probe(dev, PTR_ERR(ctx->enable_supply), + "Failed to get enable supply\n"); + + ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH); + if (IS_ERR(ctx->reset_gpio)) + return dev_err_probe(dev, PTR_ERR(ctx->reset_gpio), + "Failed to get reset-gpios\n"); + + ctx->dsi = dsi; + mipi_dsi_set_drvdata(dsi, ctx); + + dsi->lanes = 4; + dsi->format = MIPI_DSI_FMT_RGB888; + dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST + | ctx->desc->mode_flags; + + drm_panel_init(&ctx->panel, dev, &s6d7aa0_panel_funcs, + DRM_MODE_CONNECTOR_DSI); + ctx->panel.prepare_prev_first = true; + + ret = drm_panel_of_backlight(&ctx->panel); + if (ret) { + dev_err_probe(dev, ret, "Could not find backlight\n"); + return ret; + } + + drm_panel_add(&ctx->panel); + + ret = mipi_dsi_attach(dsi); + if (ret < 0) { + dev_err(dev, "Failed to attach to DSI host: %d\n", ret); + drm_panel_remove(&ctx->panel); + return ret; + } + + return 0; +} + +static void s6d7aa0_remove(struct mipi_dsi_device *dsi) +{ + struct s6d7aa0 *ctx = mipi_dsi_get_drvdata(dsi); + int ret; + + ret = mipi_dsi_detach(dsi); + if (ret < 0) + dev_err(&dsi->dev, "Failed to detach from DSI host: %d\n", ret); + + drm_panel_remove(&ctx->panel); +} + +static const struct of_device_id s6d7aa0_of_match[] = { + { + .compatible = "samsung,s6d7aa0-lsl080al02", + .data = &s6d7aa0_lsl080al02_desc + }, + { /* sentinel */ } +}; + +static struct mipi_dsi_driver s6d7aa0_driver = { + .probe = s6d7aa0_probe, + .remove = s6d7aa0_remove, + .driver = { + .name = "panel-samsung-s6d7aa0", + .of_match_table = s6d7aa0_of_match, + }, +}; +module_mipi_dsi_driver(s6d7aa0_driver); + +MODULE_AUTHOR("Artur Weber <aweber.kernel@gmail.com>"); +MODULE_DESCRIPTION("Samsung S6D7AA0 MIPI-DSI LCD controller driver"); +MODULE_LICENSE("GPL"); -- 2.40.0 ^ permalink raw reply related [flat|nested] 10+ messages in thread
* [PATCH v2 2/3] drm/panel: Add Samsung S6D7AA0 panel controller driver @ 2023-04-16 13:07 ` Artur Weber 0 siblings, 0 replies; 10+ messages in thread From: Artur Weber @ 2023-04-16 13:07 UTC (permalink / raw) To: thierry.reding Cc: devicetree, sam, linux-kernel, dri-devel, robh+dt, ~postmarketos/upstreaming, krzysztof.kozlowski+dt, Artur Weber Initial driver for S6D7AA0-controlled panels, currently only for the LSL080AL02 panel used in the Samsung Galaxy Tab 3 8.0 family of tablets. It should be possible to extend this driver to work with other panels using this IC. Signed-off-by: Artur Weber <aweber.kernel@gmail.com> --- Changed in v2: - Removed unused panel_name property from desc struct --- drivers/gpu/drm/panel/Kconfig | 7 + drivers/gpu/drm/panel/Makefile | 1 + drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c | 395 ++++++++++++++++++ 3 files changed, 403 insertions(+) create mode 100644 drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig index 8eeee71c0000..2ce9d1a45625 100644 --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -532,6 +532,13 @@ config DRM_PANEL_SAMSUNG_S6D27A1 This panel can be found in Samsung Galaxy Ace 2 GT-I8160 mobile phone. +config DRM_PANEL_SAMSUNG_S6D7AA0 + tristate "Samsung S6D7AA0 MIPI-DSI video mode panel controller" + depends on OF + depends on BACKLIGHT_CLASS_DEVICE + select DRM_MIPI_DSI + select VIDEOMODE_HELPERS + config DRM_PANEL_SAMSUNG_S6E3HA2 tristate "Samsung S6E3HA2 DSI video mode panel" depends on OF diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile index c05aa9e23907..193f3067865d 100644 --- a/drivers/gpu/drm/panel/Makefile +++ b/drivers/gpu/drm/panel/Makefile @@ -52,6 +52,7 @@ obj-$(CONFIG_DRM_PANEL_SAMSUNG_DB7430) += panel-samsung-db7430.o obj-$(CONFIG_DRM_PANEL_SAMSUNG_LD9040) += panel-samsung-ld9040.o obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6D16D0) += panel-samsung-s6d16d0.o obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6D27A1) += panel-samsung-s6d27a1.o +obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6D7AA0) += panel-samsung-s6d7aa0.o obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E3HA2) += panel-samsung-s6e3ha2.o obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E63J0X03) += panel-samsung-s6e63j0x03.o obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E63M0) += panel-samsung-s6e63m0.o diff --git a/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c b/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c new file mode 100644 index 000000000000..408e4082de74 --- /dev/null +++ b/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c @@ -0,0 +1,395 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Samsung S6D7AA0 MIPI-DSI TFT LCD controller drm_panel driver. + * + * Copyright (C) 2022 Artur Weber <aweber.kernel@gmail.com> + */ + +#include <linux/backlight.h> +#include <linux/delay.h> +#include <linux/gpio/consumer.h> +#include <linux/module.h> +#include <linux/regulator/consumer.h> +#include <linux/of.h> +#include <linux/of_device.h> + +#include <video/mipi_display.h> +#include <drm/drm_mipi_dsi.h> +#include <drm/drm_modes.h> +#include <drm/drm_panel.h> + +/* Manufacturer command set */ +#define CMD_BL_CTL 0xc3 +#define CMD_OTP_RELOAD 0xd0 +#define CMD_PASSWD1 0xf0 +#define CMD_PASSWD2 0xf1 +#define CMD_PASSWD3 0xfc + +struct s6d7aa0 { + struct drm_panel panel; + struct mipi_dsi_device *dsi; + struct gpio_desc *reset_gpio; + struct regulator *enable_supply; + const struct s6d7aa0_panel_desc *desc; + bool prepared; +}; + +struct s6d7aa0_panel_desc { + int (*init_func)(struct s6d7aa0 *ctx); + const struct drm_display_mode drm_mode; + unsigned long mode_flags; + u32 bus_flags; + bool use_passwd3; +}; + +static inline struct s6d7aa0 *panel_to_s6d7aa0(struct drm_panel *panel) +{ + return container_of(panel, struct s6d7aa0, panel); +} + +static void s6d7aa0_reset(struct s6d7aa0 *ctx) +{ + gpiod_set_value_cansleep(ctx->reset_gpio, 0); + msleep(50); + gpiod_set_value_cansleep(ctx->reset_gpio, 1); + msleep(50); + gpiod_set_value_cansleep(ctx->reset_gpio, 0); + msleep(50); +} + +static int s6d7aa0_lock(struct s6d7aa0 *ctx, bool lock) +{ + struct mipi_dsi_device *dsi = ctx->dsi; + + if (lock) { + mipi_dsi_dcs_write_seq(dsi, CMD_PASSWD1, 0xa5, 0xa5); + mipi_dsi_dcs_write_seq(dsi, CMD_PASSWD2, 0xa5, 0xa5); + if (ctx->desc->use_passwd3) + mipi_dsi_dcs_write_seq(dsi, CMD_PASSWD3, 0x5a, 0x5a); + } else { + mipi_dsi_dcs_write_seq(dsi, CMD_PASSWD1, 0x5a, 0x5a); + mipi_dsi_dcs_write_seq(dsi, CMD_PASSWD2, 0x5a, 0x5a); + if (ctx->desc->use_passwd3) + mipi_dsi_dcs_write_seq(dsi, CMD_PASSWD3, 0xa5, 0xa5); + } + + return 0; +} + +static int s6d7aa0_bl_ctl_on(struct s6d7aa0 *ctx, bool enable) +{ + struct mipi_dsi_device *dsi = ctx->dsi; + + if (enable) + mipi_dsi_dcs_write_seq(dsi, CMD_BL_CTL, 0x40, 0x00, 0x28); + else + mipi_dsi_dcs_write_seq(dsi, CMD_BL_CTL, 0x40, 0x00, 0x20); + + return 0; +} + +static int s6d7aa0_on(struct s6d7aa0 *ctx) +{ + struct mipi_dsi_device *dsi = ctx->dsi; + struct device *dev = &dsi->dev; + int ret; + + dsi->mode_flags |= MIPI_DSI_MODE_LPM; + + s6d7aa0_reset(ctx); + + ret = ctx->desc->init_func(ctx); + if (ret < 0) { + dev_err(dev, "Failed to initialize panel: %d\n", ret); + gpiod_set_value_cansleep(ctx->reset_gpio, 1); + return ret; + } + + ret = mipi_dsi_dcs_set_display_on(dsi); + if (ret < 0) { + dev_err(dev, "Failed to set display on: %d\n", ret); + return ret; + } + + return 0; +} + +static int s6d7aa0_off(struct s6d7aa0 *ctx) +{ + struct mipi_dsi_device *dsi = ctx->dsi; + struct device *dev = &dsi->dev; + int ret; + + dsi->mode_flags &= ~MIPI_DSI_MODE_LPM; + + ret = mipi_dsi_dcs_set_display_off(dsi); + if (ret < 0) { + dev_err(dev, "Failed to set display off: %d\n", ret); + return ret; + } + msleep(64); + + ret = s6d7aa0_bl_ctl_on(ctx, false); + if (ret < 0) { + dev_err(dev, "Failed to disable backlight control: %d\n", ret); + return ret; + } + usleep_range(1000, 1500); + + ret = mipi_dsi_dcs_enter_sleep_mode(dsi); + if (ret < 0) { + dev_err(dev, "Failed to enter sleep mode: %d\n", ret); + return ret; + } + msleep(120); + + return 0; +} + +static int s6d7aa0_prepare(struct drm_panel *panel) +{ + struct s6d7aa0 *ctx = panel_to_s6d7aa0(panel); + struct device *dev = &ctx->dsi->dev; + int ret; + + if (ctx->prepared) + return 0; + + ret = regulator_enable(ctx->enable_supply); + if (ret) { + dev_err(dev, "Failed to enable regulator: %d\n", ret); + return ret; + } + + ret = s6d7aa0_on(ctx); + if (ret < 0) { + dev_err(dev, "Failed to initialize panel: %d\n", ret); + gpiod_set_value_cansleep(ctx->reset_gpio, 1); + return ret; + } + + ctx->prepared = true; + return 0; +} + +static int s6d7aa0_disable(struct drm_panel *panel) +{ + struct s6d7aa0 *ctx = panel_to_s6d7aa0(panel); + struct device *dev = &ctx->dsi->dev; + int ret; + + ret = s6d7aa0_off(ctx); + if (ret < 0) + dev_err(dev, "Failed to un-initialize panel: %d\n", ret); + + return 0; +} + +static int s6d7aa0_unprepare(struct drm_panel *panel) +{ + struct s6d7aa0 *ctx = panel_to_s6d7aa0(panel); + + if (!ctx->prepared) + return 0; + + gpiod_set_value_cansleep(ctx->reset_gpio, 1); + regulator_disable(ctx->enable_supply); + + ctx->prepared = false; + return 0; +} + +/* Initialization code and structures for LSL080AL02 panel */ + +static int s6d7aa0_lsl080al02_init(struct s6d7aa0 *ctx) +{ + struct mipi_dsi_device *dsi = ctx->dsi; + struct device *dev = &dsi->dev; + int ret; + + usleep_range(20000, 25000); + + ret = s6d7aa0_lock(ctx, false); + if (ret < 0) { + dev_err(dev, "Failed to unlock registers: %d\n", ret); + return ret; + } + + mipi_dsi_dcs_write_seq(dsi, CMD_OTP_RELOAD, 0x00, 0x10); + usleep_range(1000, 1500); + + mipi_dsi_dcs_write_seq(dsi, 0xb6, 0x10); /* SEQ_B6_PARAM_8_R01 */ + + ret = s6d7aa0_bl_ctl_on(ctx, true); + if (ret < 0) { + dev_err(dev, "Failed to enable backlight control: %d\n", ret); + return ret; + } + usleep_range(5000, 6000); + mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_SET_ADDRESS_MODE, 0x04); + + ret = mipi_dsi_dcs_exit_sleep_mode(dsi); + if (ret < 0) { + dev_err(dev, "Failed to exit sleep mode: %d\n", ret); + return ret; + } + + msleep(120); + mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_SET_ADDRESS_MODE, 0x00); + + ret = s6d7aa0_lock(ctx, true); + if (ret < 0) { + dev_err(dev, "Failed to lock registers: %d\n", ret); + return ret; + } + + ret = mipi_dsi_dcs_set_display_on(dsi); + if (ret < 0) { + dev_err(dev, "Failed to set display on: %d\n", ret); + return ret; + } + + return 0; +}; + +static const struct drm_display_mode s6d7aa0_lsl080al02_mode = { + .clock = (800 + 16 + 4 + 140) * (1280 + 8 + 4 + 4) * 60 / 1000, + .hdisplay = 800, + .hsync_start = 800 + 16, + .hsync_end = 800 + 16 + 4, + .htotal = 800 + 16 + 4 + 140, + .vdisplay = 1280, + .vsync_start = 1280 + 8, + .vsync_end = 1280 + 8 + 4, + .vtotal = 1280 + 8 + 4 + 4, + .width_mm = 108, + .height_mm = 173, +}; + +static const struct s6d7aa0_panel_desc s6d7aa0_lsl080al02_desc = { + .init_func = s6d7aa0_lsl080al02_init, + .drm_mode = s6d7aa0_lsl080al02_mode, + .mode_flags = MIPI_DSI_MODE_VSYNC_FLUSH, + .bus_flags = DRM_BUS_FLAG_DE_HIGH, + .use_passwd3 = false, +}; + +static int s6d7aa0_get_modes(struct drm_panel *panel, + struct drm_connector *connector) +{ + struct drm_display_mode *mode; + struct s6d7aa0 *ctx; + + ctx = container_of(panel, struct s6d7aa0, panel); + if (!ctx) + return -EINVAL; + + mode = drm_mode_duplicate(connector->dev, &ctx->desc->drm_mode); + if (!mode) + return -ENOMEM; + + drm_mode_set_name(mode); + + mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; + connector->display_info.width_mm = mode->width_mm; + connector->display_info.height_mm = mode->height_mm; + connector->display_info.bus_flags = ctx->desc->bus_flags; + drm_mode_probed_add(connector, mode); + + return 1; +} + +static const struct drm_panel_funcs s6d7aa0_panel_funcs = { + .disable = s6d7aa0_disable, + .prepare = s6d7aa0_prepare, + .unprepare = s6d7aa0_unprepare, + .get_modes = s6d7aa0_get_modes, +}; + +static int s6d7aa0_probe(struct mipi_dsi_device *dsi) +{ + struct device *dev = &dsi->dev; + struct s6d7aa0 *ctx; + int ret; + + ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); + if (!ctx) + return -ENOMEM; + + ctx->desc = of_device_get_match_data(dev); + if (!ctx->desc) + return -ENODEV; + + ctx->enable_supply = devm_regulator_get(dev, "enable"); + if (IS_ERR(ctx->enable_supply)) + return dev_err_probe(dev, PTR_ERR(ctx->enable_supply), + "Failed to get enable supply\n"); + + ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH); + if (IS_ERR(ctx->reset_gpio)) + return dev_err_probe(dev, PTR_ERR(ctx->reset_gpio), + "Failed to get reset-gpios\n"); + + ctx->dsi = dsi; + mipi_dsi_set_drvdata(dsi, ctx); + + dsi->lanes = 4; + dsi->format = MIPI_DSI_FMT_RGB888; + dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST + | ctx->desc->mode_flags; + + drm_panel_init(&ctx->panel, dev, &s6d7aa0_panel_funcs, + DRM_MODE_CONNECTOR_DSI); + ctx->panel.prepare_prev_first = true; + + ret = drm_panel_of_backlight(&ctx->panel); + if (ret) { + dev_err_probe(dev, ret, "Could not find backlight\n"); + return ret; + } + + drm_panel_add(&ctx->panel); + + ret = mipi_dsi_attach(dsi); + if (ret < 0) { + dev_err(dev, "Failed to attach to DSI host: %d\n", ret); + drm_panel_remove(&ctx->panel); + return ret; + } + + return 0; +} + +static void s6d7aa0_remove(struct mipi_dsi_device *dsi) +{ + struct s6d7aa0 *ctx = mipi_dsi_get_drvdata(dsi); + int ret; + + ret = mipi_dsi_detach(dsi); + if (ret < 0) + dev_err(&dsi->dev, "Failed to detach from DSI host: %d\n", ret); + + drm_panel_remove(&ctx->panel); +} + +static const struct of_device_id s6d7aa0_of_match[] = { + { + .compatible = "samsung,s6d7aa0-lsl080al02", + .data = &s6d7aa0_lsl080al02_desc + }, + { /* sentinel */ } +}; + +static struct mipi_dsi_driver s6d7aa0_driver = { + .probe = s6d7aa0_probe, + .remove = s6d7aa0_remove, + .driver = { + .name = "panel-samsung-s6d7aa0", + .of_match_table = s6d7aa0_of_match, + }, +}; +module_mipi_dsi_driver(s6d7aa0_driver); + +MODULE_AUTHOR("Artur Weber <aweber.kernel@gmail.com>"); +MODULE_DESCRIPTION("Samsung S6D7AA0 MIPI-DSI LCD controller driver"); +MODULE_LICENSE("GPL"); -- 2.40.0 ^ permalink raw reply related [flat|nested] 10+ messages in thread
* [PATCH v2 3/3] MAINTAINERS: Add entry for Samsung S6D7AA0 LCD panel controller driver 2023-04-16 13:07 ` Artur Weber @ 2023-04-16 13:07 ` Artur Weber -1 siblings, 0 replies; 10+ messages in thread From: Artur Weber @ 2023-04-16 13:07 UTC (permalink / raw) To: thierry.reding Cc: sam, airlied, daniel, robh+dt, krzysztof.kozlowski+dt, dri-devel, devicetree, linux-kernel, ~postmarketos/upstreaming, Artur Weber Add myself as maintainer of the Samsung S6D7AA0 panel driver. Signed-off-by: Artur Weber <aweber.kernel@gmail.com> --- MAINTAINERS | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index 90abe83c02f3..6a55e6e3ac59 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -6623,6 +6623,12 @@ S: Maintained F: Documentation/devicetree/bindings/display/panel/samsung,s6d27a1.yaml F: drivers/gpu/drm/panel/panel-samsung-s6d27a1.c +DRM DRIVER FOR SAMSUNG S6D7AA0 PANELS +M: Artur Weber <aweber.kernel@gmail.com> +S: Maintained +F: Documentation/devicetree/bindings/display/panel/samsung,s6d7aa0.yaml +F: drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c + DRM DRIVER FOR SITRONIX ST7703 PANELS M: Guido Günther <agx@sigxcpu.org> R: Purism Kernel Team <kernel@puri.sm> -- 2.40.0 ^ permalink raw reply related [flat|nested] 10+ messages in thread
* [PATCH v2 3/3] MAINTAINERS: Add entry for Samsung S6D7AA0 LCD panel controller driver @ 2023-04-16 13:07 ` Artur Weber 0 siblings, 0 replies; 10+ messages in thread From: Artur Weber @ 2023-04-16 13:07 UTC (permalink / raw) To: thierry.reding Cc: devicetree, sam, linux-kernel, dri-devel, robh+dt, ~postmarketos/upstreaming, krzysztof.kozlowski+dt, Artur Weber Add myself as maintainer of the Samsung S6D7AA0 panel driver. Signed-off-by: Artur Weber <aweber.kernel@gmail.com> --- MAINTAINERS | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index 90abe83c02f3..6a55e6e3ac59 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -6623,6 +6623,12 @@ S: Maintained F: Documentation/devicetree/bindings/display/panel/samsung,s6d27a1.yaml F: drivers/gpu/drm/panel/panel-samsung-s6d27a1.c +DRM DRIVER FOR SAMSUNG S6D7AA0 PANELS +M: Artur Weber <aweber.kernel@gmail.com> +S: Maintained +F: Documentation/devicetree/bindings/display/panel/samsung,s6d7aa0.yaml +F: drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c + DRM DRIVER FOR SITRONIX ST7703 PANELS M: Guido Günther <agx@sigxcpu.org> R: Purism Kernel Team <kernel@puri.sm> -- 2.40.0 ^ permalink raw reply related [flat|nested] 10+ messages in thread
end of thread, other threads:[~2023-04-17 7:22 UTC | newest] Thread overview: 10+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2023-04-16 13:07 [PATCH v2 0/3] Add Samsung S6D7AA0 panel controller driver Artur Weber 2023-04-16 13:07 ` Artur Weber 2023-04-16 13:07 ` [PATCH v2 1/3] dt-bindings: display: panel: Add Samsung S6D7AA0 LCD panel controller Artur Weber 2023-04-16 13:07 ` Artur Weber 2023-04-16 13:09 ` Artur Weber 2023-04-16 13:09 ` Artur Weber 2023-04-16 13:07 ` [PATCH v2 2/3] drm/panel: Add Samsung S6D7AA0 panel controller driver Artur Weber 2023-04-16 13:07 ` Artur Weber 2023-04-16 13:07 ` [PATCH v2 3/3] MAINTAINERS: Add entry for Samsung S6D7AA0 LCD " Artur Weber 2023-04-16 13:07 ` Artur Weber
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