Commit 31a47014 authored by Chris Morgan's avatar Chris Morgan Committed by Heiko Stuebner
Browse files

arm64: dts: rockchip: add Hynitron cst340 for Anbernic 353 series 

Add support for the Hynitron cst340 touchscreen driver to the Anbernic
RG353P and RG353V devices. Note the RG353VS device does not have a
touchscreen.

https://lore.kernel.org/linux-input/Y1y9e9sgE%2FDck9fB@google.com/



Changes since V1:
 - Removed 'status = "okay";', as it was never disabled.

Signed-off-by: default avatarChris Morgan <macromorgan@hotmail.com>
Link: https://lore.kernel.org/r/20221128231528.23360-1-macroalpha82@gmail.com


Signed-off-by: default avatarHeiko Stuebner <heiko@sntech.de>
parent 3eb403e4

arch/arm64/boot/dts/rockchip/rk3566-anbernic-rg353p.dts

+19 −0
Original line number Diff line number Diff line
@@ -95,6 +95,18 @@ &i2c2 { 
	pintctrl-names = "default";

	pinctrl-0 = <&i2c2m1_xfer>;

	status = "okay";



	touch@1a {

		compatible = "hynitron,cst340";

		reg = <0x1a>;

		interrupt-parent = <&gpio4>;

		interrupts = <RK_PB1 IRQ_TYPE_EDGE_FALLING>;

		pinctrl-0 = <&touch_rst>;

		pinctrl-names = "default";

		reset-gpios = <&gpio4 RK_PA6 GPIO_ACTIVE_LOW>;

		touchscreen-size-x = <640>;

		touchscreen-size-y = <480>;

	};

};



&pinctrl {
@@ -104,6 +116,13 @@ spk_amp_enable_h: spk-amp-enable-h { 
				<4 RK_PC2 RK_FUNC_GPIO &pcfg_pull_none>;

		};

	};



	touch {

		touch_rst: touch-rst {

			rockchip,pins =

				<4 RK_PA6 RK_FUNC_GPIO &pcfg_pull_up>;

		};

	};

};



&rk817 {

arch/arm64/boot/dts/rockchip/rk3566-anbernic-rg353v.dts

+12 −0
Original line number Diff line number Diff line
@@ -82,6 +82,18 @@ &i2c2 { 
	pintctrl-names = "default";

	pinctrl-0 = <&i2c2m1_xfer>;

	status = "okay";



	touch@1a {

		compatible = "hynitron,cst340";

		reg = <0x1a>;

		interrupt-parent = <&gpio4>;

		interrupts = <RK_PB1 IRQ_TYPE_EDGE_FALLING>;

		pinctrl-0 = <&touch_rst>;

		pinctrl-names = "default";

		reset-gpios = <&gpio4 RK_PA6 GPIO_ACTIVE_LOW>;

		touchscreen-size-x = <640>;

		touchscreen-size-y = <480>;

	};

};



&pinctrl {