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authorLinus Walleij <linus.walleij@linaro.org>2020-05-16 23:29:13 +0200
committerLinus Walleij <linus.walleij@linaro.org>2020-05-17 22:37:09 +0200
commit4908471e1ed767504ccfe3561e3a72c7458b1138 (patch)
tree073a75ee8b097fbc5ab8bd110bce8e64a2701531
parent3c278a4749a8a0d1bf8e5235ca289748fdc48b11 (diff)
downloadlinux-stericsson-ux500-dts.tar.gz
ARM: dts: ux500: Add touchscreen to the Skomerux500-dts-v5.8ux500-dts
This adds touchscreen support to the Ux500 Samsung GT-S7710 "Skomer" mobile phone. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20200516212913.485365-1-linus.walleij@linaro.org
-rw-r--r--arch/arm/boot/dts/ste-ux500-samsung-skomer.dts32
1 files changed, 31 insertions, 1 deletions
diff --git a/arch/arm/boot/dts/ste-ux500-samsung-skomer.dts b/arch/arm/boot/dts/ste-ux500-samsung-skomer.dts
index c7d4ad34e569..8edef161613a 100644
--- a/arch/arm/boot/dts/ste-ux500-samsung-skomer.dts
+++ b/arch/arm/boot/dts/ste-ux500-samsung-skomer.dts
@@ -367,7 +367,28 @@
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 {
@@ -562,6 +583,15 @@
};
};
};
+ /* 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 {