All Kitakami phones use Synaptics RMI4 touchscreens
attached to the same i2c bus. Configure and enable it.

Signed-off-by: Konrad Dybcio <[email protected]>
---
 .../msm8994-sony-xperia-kitakami-karin.dts    |  2 +
 .../qcom/msm8994-sony-xperia-kitakami.dtsi    | 45 ++++++++++++++++++-
 2 files changed, 46 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/msm8994-sony-xperia-kitakami-karin.dts 
b/arch/arm64/boot/dts/qcom/msm8994-sony-xperia-kitakami-karin.dts
index 743a2a076552..4dcf42eafb3a 100644
--- a/arch/arm64/boot/dts/qcom/msm8994-sony-xperia-kitakami-karin.dts
+++ b/arch/arm64/boot/dts/qcom/msm8994-sony-xperia-kitakami-karin.dts
@@ -41,3 +41,5 @@ &pm8994_l25 {
 };
 
 /delete-node/ &pm8994_l32;
+/* Z4 tablets use a different touchscreen. */
+/delete-node/ &touchscreen;
diff --git a/arch/arm64/boot/dts/qcom/msm8994-sony-xperia-kitakami.dtsi 
b/arch/arm64/boot/dts/qcom/msm8994-sony-xperia-kitakami.dtsi
index e31c31c2b936..33af174b78ab 100644
--- a/arch/arm64/boot/dts/qcom/msm8994-sony-xperia-kitakami.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8994-sony-xperia-kitakami.dtsi
@@ -147,7 +147,34 @@ &blsp_i2c5 {
 &blsp_i2c6 {
        status = "okay";
 
-       /* Synaptics touchscreen */
+       touchscreen: rmi4-i2c-dev@2c {
+               compatible = "syna,rmi4-i2c";
+               reg = <0x2c>;
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               interrupt-parent = <&tlmm>;
+               interrupts = <42 IRQ_TYPE_EDGE_FALLING>;
+
+               pinctrl-names = "default";
+               pinctrl-0 = <&ts_int_active &ts_reset_active>;
+
+               vdd-supply = <&pm8994_l22>;
+               vio-supply = <&pm8994_s4>;
+
+               syna,reset-delay-ms = <220>;
+               syna,startup-delay-ms = <220>;
+
+               rmi4-f01@1 {
+                       reg = <0x01>;
+                       syna,nosleep-mode = <1>;
+               };
+
+               rmi4-f11@11 {
+                       reg = <0x11>;
+                       syna,sensor-type = <1>;
+               };
+       };
 };
 
 &blsp1_uart2 {
@@ -433,3 +460,19 @@ &sdhc1 {
         * vqmmc-supply = <&pm8994_s4>;
         */
 };
+
+&tlmm {
+       ts_int_active: ts-int-active {
+               pins = "gpio42";
+               drive-strength = <2>;
+               bias-disable;
+               input-enable;
+       };
+
+       ts_reset_active: ts-reset-active {
+               pins = "gpio109";
+               drive-strength = <2>;
+               bias-disable;
+               output-low;
+       };
+};
-- 
2.29.2

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