[PATCH V2] arm64: dts: rockchip: add Hynitron cst340 for Anbernic 353 series
Chris Morgan
macroalpha82 at gmail.com
Mon Nov 28 15:15:28 PST 2022
From: Chris Morgan <macromorgan at hotmail.com>
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 at hotmail.com>
---
.../dts/rockchip/rk3566-anbernic-rg353p.dts | 19 +++++++++++++++++++
.../dts/rockchip/rk3566-anbernic-rg353v.dts | 12 ++++++++++++
2 files changed, 31 insertions(+)
diff --git a/arch/arm64/boot/dts/rockchip/rk3566-anbernic-rg353p.dts b/arch/arm64/boot/dts/rockchip/rk3566-anbernic-rg353p.dts
index 63cff402f3a8..8aa93c646bec 100644
--- a/arch/arm64/boot/dts/rockchip/rk3566-anbernic-rg353p.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3566-anbernic-rg353p.dts
@@ -95,6 +95,18 @@ &i2c2 {
pintctrl-names = "default";
pinctrl-0 = <&i2c2m1_xfer>;
status = "okay";
+
+ touch at 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 {
diff --git a/arch/arm64/boot/dts/rockchip/rk3566-anbernic-rg353v.dts b/arch/arm64/boot/dts/rockchip/rk3566-anbernic-rg353v.dts
index 885234a023e1..f49ce29ba597 100644
--- a/arch/arm64/boot/dts/rockchip/rk3566-anbernic-rg353v.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3566-anbernic-rg353v.dts
@@ -82,6 +82,18 @@ &i2c2 {
pintctrl-names = "default";
pinctrl-0 = <&i2c2m1_xfer>;
status = "okay";
+
+ touch at 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 {
--
2.25.1
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