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ARM: dts: ux500: samsung-golden: Add touch screen 

samsung-golden has an Atmel mXT224S touch controller connected to I2C.
It is supported by the existing driver for atmel,maxtouch, so all we
need to do to make it work is to define the necessary device tree nodes.

The atmel_mxt_ts driver does not support controlling regulators yet,
so add regulator-always-on for now to turn on the necessary regulators.

Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20191219202052.19039-7-stephan@gerhold.net
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Stephan Gerhold 2019-12-19 21:20:49 +01:00 committed by Linus Walleij
parent 032c18c566
commit 234a0387f7
1 changed files with 31 additions and 0 deletions
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31
arch/arm/boot/dts/ste-ux500-samsung-golden.dts
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@ -142,6 +142,26 @@
};
};
i2c@80110000 {
status = "okay";
pinctrl-names = "default", "sleep";
pinctrl-0 = <&i2c3_c_2_default>;
pinctrl-1 = <&i2c3_c_2_sleep>;
touchscreen@4a {
compatible = "atmel,maxtouch";
reg = <0x4a>;
/* GPIO218 (TSP_INT_1V8) */
interrupt-parent = <&gpio6>;
interrupts = <26 IRQ_TYPE_EDGE_FALLING>;
pinctrl-names = "default";
pinctrl-0 = <&tsp_default>;
};
};
prcmu@80157000 {
ab8505 {
ab8500_usb {
@ -161,6 +181,7 @@
regulator-name = "vreg_tsp_a3v3";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-always-on; /* FIXME */
};
ab8500_ldo_aux3 {
@ -177,6 +198,7 @@
regulator-name = "vreg_tsp_1v8";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on; /* FIXME */
};
ab8500_ldo_aux6 {
@ -309,6 +331,15 @@
};
};
tsp {
tsp_default: tsp_default {
golden_cfg1 {
pins = "GPIO218_AH11"; /* TSP_INT_1V8 */
ste,config = <&gpio_in_nopull>;
};
};
};
vibrator {
vibrator_default: vibrator_default {
golden_cfg1 {