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arm64: dts: exynos: Add stmfts touchscreen node for TM2 and TM2E 

TM2 and TM2E devices are provided with a ST-Microelectronics
Finger Tip S device with small differences:

 - screen size
 - TM2E uses the stmfts also as a touchkey for "back" and "menu"

In this commit the initial value of the interrupt line is set to
EXYNOS_PIN_PULL_UP as the interrupt is triggered when the line
goes down.

Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
This commit is contained in:
Andi Shyti 2017-02-10 11:17:21 +09:00 committed by Krzysztof Kozlowski
parent 0ed797f705
commit 2b17d2f8bc
3 changed files with 26 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi
View File

@ -756,6 +756,19 @@ buck10_reg: BUCK10 {
};
};
&hsi2c_5 {
status = "okay";
stmfts: touchscreen@49 {
compatible = "st,stmfts";
reg = <0x49>;
interrupt-parent = <&gpa1>;
interrupts = <1 IRQ_TYPE_LEVEL_LOW>;
avdd-supply = <&ldo30_reg>;
vdd-supply = <&ldo31_reg>;
};
};
&hsi2c_7 {
status = "okay";
@ -901,7 +914,7 @@ initial_alive: initial-state {
PIN(INPUT, gpa0-7, NONE, FAST_SR1);
PIN(INPUT, gpa1-0, UP, FAST_SR1);
PIN(INPUT, gpa1-1, NONE, FAST_SR1);
PIN(INPUT, gpa1-1, UP, FAST_SR1);
PIN(INPUT, gpa1-2, NONE, FAST_SR1);
PIN(INPUT, gpa1-3, DOWN, FAST_SR1);
PIN(INPUT, gpa1-4, DOWN, FAST_SR1);

5
arch/arm64/boot/dts/exynos/exynos5433-tm2.dts
View File

@ -76,3 +76,8 @@ &ldo38_reg {
regulator-min-microvolt = <3000000>;
regulator-max-microvolt = <3000000>;
};
&stmfts {
touchscreen-size-x = <1439>;
touchscreen-size-y = <2559>;
};

7
arch/arm64/boot/dts/exynos/exynos5433-tm2e.dts
View File

@ -63,3 +63,10 @@ &ldo38_reg {
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
};
&stmfts {
touchscreen-size-x = <1599>;
touchscreen-size-y = <2559>;
touch-key-connected;
ledvdd-supply = <&ldo33_reg>;
};