[PATCH] ARM: dts: ux500: Add touchscreen to the Skomer
From: Linus Walleij <hidden>
Date: 2020-05-16 21:29:58
Subsystem:
the rest · Maintainer:
Linus Torvalds
This adds touchscreen support to the Ux500 Samsung GT-S7710 "Skomer" mobile phone. Signed-off-by: Linus Walleij <redacted> --- .../arm/boot/dts/ste-ux500-samsung-skomer.dts | 32 ++++++++++++++++++- 1 file changed, 31 insertions(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/ste-ux500-samsung-skomer.dts b/arch/arm/boot/dts/ste-ux500-samsung-skomer.dts
index 921540d5686f..5da3e21e5388 100644
--- a/arch/arm/boot/dts/ste-ux500-samsung-skomer.dts
+++ b/arch/arm/boot/dts/ste-ux500-samsung-skomer.dts@@ -369,7 +369,28 @@ i2c@80110000 { pinctrl-0 = <&i2c3_c_2_default>; pinctrl-1 = <&i2c3_c_2_sleep>; - /* TODO: this should be used by the Cypress TMA140 touchscreen */ + /* Cypress CY8CTMA140 touchscreen */ + touchscreen@20 { + compatible = "cypress,cy8ctma140"; + clock-frequency = <400000>; + reg = <0x20>; + + touchscreen-size-x = <480>; + touchscreen-size-y = <800>; + touchscreen-max-pressure = <255>; + + /* GPIO218 for IRQ */ + interrupt-parent = <&gpio6>; + interrupts = <26 IRQ_TYPE_EDGE_FALLING>; + + /* VDD is "digital supply" nominally 1.71-3.6V */ + vdd-supply = <&ab8500_ldo_aux2_reg>; + /* VCPIN is "analog supply", 2.7-3.6 V */ + vcpin-supply = <&ab8500_ldo_aux2_reg>; + + pinctrl-names = "default"; + pinctrl-0 = <&tma140_skomer_default>; + }; }; mcde@a0350000 {
@@ -564,6 +585,15 @@ skomer_cfg1 { }; }; }; + /* Interrupt line for the Cypress TMA140 touchscreen */ + touchscreen { + tma140_skomer_default: tma140_skomer { + skomer_cfg1 { + pins = "GPIO218_AH11"; + ste,config = <&gpio_in_nopull>; + }; + }; + }; }; &ab8505_gpio {
--
2.26.2
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