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

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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: Chris Morgan <macromorgan@hotmail.com>
Link: https://lore.kernel.org/r/20221128231528.23360-1-macroalpha82@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
This commit is contained in:
Chris Morgan
2022-11-28 17:15:28 -06:00
committed by Heiko Stuebner
parent 3eb403e401
commit 31a4701490
2 changed files with 31 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
arch/arm64/boot/dts/rockchip/rk3566-anbernic-rg353p.dts
View File

@@ -95,6 +95,18 @@
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 @@
<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 {

12
arch/arm64/boot/dts/rockchip/rk3566-anbernic-rg353v.dts
View File

@@ -82,6 +82,18 @@
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 {