[PATCH v2 3/3] arm64: dts: exynos: Add stmfts touchscreen node for TM2 and TM2E

[Andi Shyti]

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.sh...@samsung.com>
Reviewed-by: Javier Martinez Canillas <jav...@osg.samsung.com>
---
 arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi | 15 ++++++++++++++-
 arch/arm64/boot/dts/exynos/exynos5433-tm2.dts         |  5 +++++
 arch/arm64/boot/dts/exynos/exynos5433-tm2e.dts        |  7 +++++++
 3 files changed, 26 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi 
b/arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi
index 098ad557fee3..b1f7083dbe72 100644
--- a/arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi
+++ b/arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi
@@ -749,6 +749,19 @@
        };
 };
 
+&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";
 
@@ -894,7 +907,7 @@
                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);
diff --git a/arch/arm64/boot/dts/exynos/exynos5433-tm2.dts 
b/arch/arm64/boot/dts/exynos/exynos5433-tm2.dts
index dea0a6f5bc18..75274b3afbd3 100644
--- a/arch/arm64/boot/dts/exynos/exynos5433-tm2.dts
+++ b/arch/arm64/boot/dts/exynos/exynos5433-tm2.dts
@@ -76,3 +76,8 @@
        regulator-min-microvolt = <3000000>;
        regulator-max-microvolt = <3000000>;
 };
+
+&stmfts {
+       touchscreen-size-x = <1439>;
+       touchscreen-size-y = <2559>;
+};
diff --git a/arch/arm64/boot/dts/exynos/exynos5433-tm2e.dts 
b/arch/arm64/boot/dts/exynos/exynos5433-tm2e.dts
index 7891a31adc17..694717ade927 100644
--- a/arch/arm64/boot/dts/exynos/exynos5433-tm2e.dts
+++ b/arch/arm64/boot/dts/exynos/exynos5433-tm2e.dts
@@ -63,3 +63,10 @@
        regulator-min-microvolt = <3300000>;
        regulator-max-microvolt = <3300000>;
 };
+
+&stmfts {
+       touchscreen-size-x = <1599>;
+       touchscreen-size-y = <2559>;
+       touch-key-connected;
+       ledvdd-supply = <&ldo33_reg>;
+};
-- 
2.11.0