Add the Samsung LTL101AL01 WXGA LCD panel to the list.
Signed-off-by: Martin Jücker martin.juecker@gmail.com --- .../devicetree/bindings/display/panel/panel-simple.yaml | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/Documentation/devicetree/bindings/display/panel/panel-simple.yaml b/Documentation/devicetree/bindings/display/panel/panel-simple.yaml index 1eb9dd4f8f58..9501b5a3c011 100644 --- a/Documentation/devicetree/bindings/display/panel/panel-simple.yaml +++ b/Documentation/devicetree/bindings/display/panel/panel-simple.yaml @@ -270,6 +270,8 @@ properties: - samsung,atna33xc20 # Samsung 12.2" (2560x1600 pixels) TFT LCD panel - samsung,lsn122dl01-c01 + # Samsung Electronics 10.1" WXGA (1280x800) TFT LCD panel + - samsung,ltl101al01 # Samsung Electronics 10.1" WSVGA TFT LCD panel - samsung,ltn101nt05 # Samsung Electronics 14" WXGA (1366x768) TFT LCD panel
Add timings and panel description for the Samsung LTL101AL01 panel.
Signed-off-by: Martin Jücker martin.juecker@gmail.com --- drivers/gpu/drm/panel/panel-simple.c | 34 ++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+)
diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c index a34f4198a534..e21f304315e4 100644 --- a/drivers/gpu/drm/panel/panel-simple.c +++ b/drivers/gpu/drm/panel/panel-simple.c @@ -3073,6 +3073,37 @@ static const struct panel_desc rocktech_rk101ii01d_ct = { .connector_type = DRM_MODE_CONNECTOR_LVDS, };
+static const struct display_timing samsung_ltl101al01_timing = { + .pixelclock = { 66663000, 66663000, 66663000 }, + .hactive = { 1280, 1280, 1280 }, + .hfront_porch = { 18, 18, 18 }, + .hback_porch = { 36, 36, 36 }, + .hsync_len = { 16, 16, 16 }, + .vactive = { 800, 800, 800 }, + .vfront_porch = { 4, 4, 4 }, + .vback_porch = { 16, 16, 16 }, + .vsync_len = { 3, 3, 3 }, + .flags = DISPLAY_FLAGS_HSYNC_LOW | DISPLAY_FLAGS_VSYNC_LOW, +}; + +static const struct panel_desc samsung_ltl101al01 = { + .timings = &samsung_ltl101al01_timing, + .num_timings = 1, + .bpc = 8, + .size = { + .width = 217, + .height = 135, + }, + .delay = { + .prepare = 40, + .enable = 300, + .disable = 200, + .unprepare = 600, + }, + .bus_format = MEDIA_BUS_FMT_RGB888_1X7X4_SPWG, + .connector_type = DRM_MODE_CONNECTOR_LVDS, +}; + static const struct drm_display_mode samsung_ltn101nt05_mode = { .clock = 54030, .hdisplay = 1024, @@ -3966,6 +3997,9 @@ static const struct of_device_id platform_of_match[] = { }, { .compatible = "rocktech,rk101ii01d-ct", .data = &rocktech_rk101ii01d_ct, + }, { + .compatible = "samsung,ltl101al01", + .data = &samsung_ltl101al01, }, { .compatible = "samsung,ltn101nt05", .data = &samsung_ltn101nt05,
Add configuration for the LTL101AL01 panel and a pwm backlight to drive the display in the p4note devices.
Signed-off-by: Martin Jücker martin.juecker@gmail.com --- arch/arm/boot/dts/exynos4412-p4note.dtsi | 84 ++++++++++++++++++++---- 1 file changed, 71 insertions(+), 13 deletions(-)
diff --git a/arch/arm/boot/dts/exynos4412-p4note.dtsi b/arch/arm/boot/dts/exynos4412-p4note.dtsi index 97f131b1014b..1fd051b52387 100644 --- a/arch/arm/boot/dts/exynos4412-p4note.dtsi +++ b/arch/arm/boot/dts/exynos4412-p4note.dtsi @@ -106,6 +106,16 @@ voltage-regulator-3 { regulator-always-on; };
+ panel_vdd: voltage-regulator-4 { + compatible = "regulator-fixed"; + regulator-name = "LCD_ENABLE"; + pinctrl-names = "default"; + pinctrl-0 = <&lcd_enable>; + gpios = <&gpc0 1 GPIO_ACTIVE_HIGH>; + enable-active-high; + regulator-boot-on; + }; + wlan_pwrseq: sdhci3-pwrseq { compatible = "mmc-pwrseq-simple"; reset-gpios = <&gpm3 5 GPIO_ACTIVE_LOW>; @@ -216,6 +226,32 @@ power_supply: charger@6 { monitored-battery = <&battery_cell>; }; }; + + panel { + compatible = "samsung,ltl101al01"; + pinctrl-0 = <&lvds_nshdn>; + pinctrl-names = "default"; + power-supply = <&panel_vdd>; + enable-gpios = <&gpm0 5 GPIO_ACTIVE_HIGH>; + backlight = <&backlight>; + + port { + lcd_ep: endpoint { + remote-endpoint = <&fimd_ep>; + }; + }; + }; + + backlight: backlight { + compatible = "pwm-backlight"; + pinctrl-0 = <&led_bl_reset>; + pinctrl-names = "default"; + enable-gpios = <&gpm0 1 GPIO_ACTIVE_HIGH>; + pwms = <&pwm 1 78770 0>; + brightness-levels = <0 48 128 255>; + num-interpolated-steps = <8>; + default-brightness-level = <12>; + }; };
&adc { @@ -295,22 +331,19 @@ &exynos_usbphy { };
&fimd { - pinctrl-0 = <&lcd_clk &lcd_data24 &pwm1_out>; + pinctrl-0 = <&lcd_clk &lcd_data24>; pinctrl-names = "default"; + #address-cells = <1>; + #size-cells = <0>; status = "okay";
- display-timings { - timing0 { - clock-frequency = <66666666>; - hactive = <1280>; - vactive = <800>; - hfront-porch = <18>; - hback-porch = <36>; - hsync-len = <16>; - vback-porch = <16>; - vfront-porch = <4>; - vsync-len = <3>; - hsync-active = <1>; + samsung,invert-vclk; + + port@3 { + reg = <3>; + + fimd_ep: endpoint { + remote-endpoint = <&lcd_ep>; }; }; }; @@ -687,6 +720,12 @@ tsp_reg_gpio_3: tsp-reg-gpio-3-pins { samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>; };
+ lcd_enable: lcd-enable-pins { + samsung,pins = "gpc0-1"; + samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>; + samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>; + }; + sleep0: sleep-state { PIN_SLP(gpa0-0, INPUT, NONE); PIN_SLP(gpa0-1, OUT0, NONE); @@ -809,12 +848,24 @@ uart_sel: uart-sel-pins { /* 0 = CP, 1 = AP (serial output) */ };
+ led_bl_reset: led-bl-reset-pins { + samsung,pins = "gpm0-1"; + samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>; + samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>; + }; + tsp_rst: tsp-rst-pins { samsung,pins = "gpm0-4"; samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>; samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>; };
+ lvds_nshdn: lvds-nshdn-pins { + samsung,pins = "gpm0-5"; + samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>; + samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>; + }; + tsp_irq: tsp-irq-pins { samsung,pins = "gpm2-3"; samsung,pin-function = <EXYNOS_PIN_FUNC_F>; @@ -1100,6 +1151,13 @@ &pmu_system_controller { assigned-clock-parents = <&clock CLK_XUSBXTI>; };
+&pwm { + pinctrl-0 = <&pwm1_out>; + pinctrl-names = "default"; + samsung,pwm-outputs = <1>; + status = "okay"; +}; + &rtc { clocks = <&clock CLK_RTC>, <&max77686 MAX77686_CLK_AP>; clock-names = "rtc", "rtc_src";
On Mon, 16 May 2022 21:37:09 +0200, Martin Jücker wrote:
Add configuration for the LTL101AL01 panel and a pwm backlight to drive the display in the p4note devices.
Applied, thanks!
[3/3] ARM: dts: exynos: add panel and backlight to p4note https://git.kernel.org/krzk/linux/c/6c52573bf4c3a0f6e7142264fb36b31ae2c3707a
Best regards,
On 16/05/2022 21:37, Martin Jücker wrote:
Add the Samsung LTL101AL01 WXGA LCD panel to the list.
Signed-off-by: Martin Jücker martin.juecker@gmail.com
.../devicetree/bindings/display/panel/panel-simple.yaml | 2 ++
Acked-by: Krzysztof Kozlowski krzysztof.kozlowski@linaro.org
Best regards, Krzysztof
dri-devel@lists.freedesktop.org
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Krzysztof Kozlowski -
Martin Jücker