[v3] Initial support for Samsung Galaxy Tab 2 series

[PATCH v3 08/10] ARM: dts: ti: omap: samsung-espresso7: Add initial support for Galaxy Tab 2 7.0

Posted by Mithil Bavishi 2 weeks, 1 day ago

Create a device tree for the 7 inch variants (P3100, P3110, P3113)

Signed-off-by: Mithil Bavishi <bavishimithil@gmail.com>
---
 .../dts/ti/omap/omap4-samsung-espresso7.dts   | 70 +++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 arch/arm/boot/dts/ti/omap/omap4-samsung-espresso7.dts

diff --git a/arch/arm/boot/dts/ti/omap/omap4-samsung-espresso7.dts b/arch/arm/boot/dts/ti/omap/omap4-samsung-espresso7.dts
new file mode 100644
index 000000000..be3d7a82f
--- /dev/null
+++ b/arch/arm/boot/dts/ti/omap/omap4-samsung-espresso7.dts
@@ -0,0 +1,70 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/dts-v1/;
+
+#include "omap4-samsung-espresso-common.dtsi"
+
+/ {
+	model = "Samsung Galaxy Tab 2 (7 inch)";
+	compatible = "samsung,espresso7", "ti,omap4430", "ti,omap4";
+
+	backlight: backlight {
+		compatible = "pwm-backlight";
+		pinctrl-names = "default";
+		pinctrl-0 = <&backlight_pins>;
+		pwms = <&pwm10 0 1200 0>;
+		power-supply = <&reg_lcd>;
+		enable-gpios = <&gpio3 31 GPIO_ACTIVE_HIGH>;
+		brightness-levels = <0 4 8 16 32 64 128 255>;
+		default-brightness-level = <2>;
+	};
+
+	panel {
+		compatible = "samsung,ltn070nl01", "panel-lvds";
+		power-supply = <&reg_lcd>;
+		width-mm = <154>;
+		height-mm = <90>;
+		data-mapping = "vesa-24";
+		backlight = <&backlight>;
+
+		panel-timing {
+			clock-frequency = <47255554>;
+
+			hback-porch = <210>;
+			hactive = <1024>;
+			hfront-porch = <186>;
+			hsync-len = <50>;
+
+			vback-porch = <11>;
+			vactive = <600>;
+			vfront-porch = <24>;
+			vsync-len = <10>;
+
+			hsync-active = <0>;
+			vsync-active = <0>;
+			de-active = <1>;
+			pixelclk-active = <1>;
+			syncclk-active = <0>;
+		};
+
+		port {
+			panel_in: endpoint {
+				remote-endpoint = <&bridge_out>;
+			};
+		};
+	};
+};
+
+&i2c3 {
+	touchscreen@48 {
+		compatible = "melfas,mms136";
+		reg = <0x48>;
+		interrupt-parent = <&gpio2>;
+		interrupts = <14 IRQ_TYPE_EDGE_FALLING>;
+		touchscreen-size-x = <1023>;
+		touchscreen-size-y = <599>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&touch_pins>;
+		avdd-supply = <&reg_touch_ldo_en>;
+		vdd-supply = <&ldo6>;
+	};
+};
-- 
2.43.0

Re: [PATCH v3 08/10] ARM: dts: ti: omap: samsung-espresso7: Add initial support for Galaxy Tab 2 7.0

Posted by Andreas Kemnade 1 week, 4 days ago

Hi Mithil,

Am Fri,  8 Nov 2024 20:04:37 +0000
schrieb Mithil Bavishi <bavishimithil@gmail.com>:

> Create a device tree for the 7 inch variants (P3100, P3110, P3113)
> 
> Signed-off-by: Mithil Bavishi <bavishimithil@gmail.com>
> ---
>  .../dts/ti/omap/omap4-samsung-espresso7.dts   | 70 +++++++++++++++++++
>  1 file changed, 70 insertions(+)
>  create mode 100644 arch/arm/boot/dts/ti/omap/omap4-samsung-espresso7.dts
> 
> diff --git a/arch/arm/boot/dts/ti/omap/omap4-samsung-espresso7.dts b/arch/arm/boot/dts/ti/omap/omap4-samsung-espresso7.dts
> new file mode 100644
> index 000000000..be3d7a82f
> --- /dev/null
> +++ b/arch/arm/boot/dts/ti/omap/omap4-samsung-espresso7.dts
> @@ -0,0 +1,70 @@
> +// SPDX-License-Identifier: (GPL-2.0 OR MIT)
> +/dts-v1/;
> +
> +#include "omap4-samsung-espresso-common.dtsi"
> +
> +/ {
> +	model = "Samsung Galaxy Tab 2 (7 inch)";
> +	compatible = "samsung,espresso7", "ti,omap4430", "ti,omap4";
> +
> +	backlight: backlight {
> +		compatible = "pwm-backlight";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&backlight_pins>;
> +		pwms = <&pwm10 0 1200 0>;
> +		power-supply = <&reg_lcd>;
> +		enable-gpios = <&gpio3 31 GPIO_ACTIVE_HIGH>;
> +		brightness-levels = <0 4 8 16 32 64 128 255>;
> +		default-brightness-level = <2>;
> +	};
> +
> +	panel {
> +		compatible = "samsung,ltn070nl01", "panel-lvds";
> +		power-supply = <&reg_lcd>;
> +		width-mm = <154>;
> +		height-mm = <90>;
> +		data-mapping = "vesa-24";
> +		backlight = <&backlight>;
> +
> +		panel-timing {
> +			clock-frequency = <47255554>;
> +
> +			hback-porch = <210>;
> +			hactive = <1024>;
> +			hfront-porch = <186>;
> +			hsync-len = <50>;
> +
> +			vback-porch = <11>;
> +			vactive = <600>;
> +			vfront-porch = <24>;
> +			vsync-len = <10>;
> +
> +			hsync-active = <0>;
> +			vsync-active = <0>;
> +			de-active = <1>;
> +			pixelclk-active = <1>;
> +			syncclk-active = <0>;
> +		};
> +
> +		port {
> +			panel_in: endpoint {
> +				remote-endpoint = <&bridge_out>;
> +			};
> +		};
> +	};
> +};
> +
> +&i2c3 {
> +	touchscreen@48 {
> +		compatible = "melfas,mms136";
> +		reg = <0x48>;
> +		interrupt-parent = <&gpio2>;
> +		interrupts = <14 IRQ_TYPE_EDGE_FALLING>;
> +		touchscreen-size-x = <1023>;

Documentation/devicetree/bindings/input/touchscreen/touchscreen.yaml:
horizontal resolution of touchscreen (maximum x coordinate reported + 1)

So this touchscreen reports max 1022?

> +		touchscreen-size-y = <599>;

same question.

Regards,
Andreas

Re: Re: [PATCH v3 08/10] ARM: dts: ti: omap: samsung-espresso7: Add initial support for Galaxy Tab 2 7.0

Posted by Mithil Bavishi 7 hours ago

> > +&i2c3 {
> > +	touchscreen@48 {
> > +		compatible = "melfas,mms136";
> > +		reg = <0x48>;
> > +		interrupt-parent = <&gpio2>;
> > +		interrupts = <14 IRQ_TYPE_EDGE_FALLING>;
> > +		touchscreen-size-x = <1023>;
>
> Documentation/devicetree/bindings/input/touchscreen/touchscreen.yaml:
> horizontal resolution of touchscreen (maximum x coordinate reported + 1)
>
> So this touchscreen reports max 1022?
>
> > +		touchscreen-size-y = <599>;
>
> same question.

My apologies, it should be 1023+1 (1024) and 599+1(600) respectively.
Will fix it in the next revision.

https://github.com/Unlegacy-Android/android_kernel_ti_omap4/blob/3.4/common/arch/arm/mach-omap2/board-espresso-input.c#L145

Best Regards,
Mithil