arm64: dts: qcom: sc7180: Add prox sensor to LTE sku Lazor boards

There's a proximity sensor on Lazor devices, but only for LTE SKUs.
Enable it only on the Lazor LTE SKUs and also configure it properly so
it works.

Cc: Douglas Anderson <dianders@chromium.org>
Cc: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20201120183825.547310-1-swboyd@chromium.orgSigned-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor-r1-lte.dts

@@ -13,6 +13,14 @@ / {
 	compatible = "google,lazor-rev1-sku0", "google,lazor-rev2-sku0", "qcom,sc7180";
 };
 
+&ap_sar_sensor {
+	status = "okay";
+};
+
+&ap_sar_sensor_i2c {
+	status = "okay";
+};
+
 &keyboard_backlight {
 	status = "okay";
 };

arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor-r3-lte.dts

@@ -13,6 +13,14 @@ / {
 	compatible = "google,lazor-sku0", "qcom,sc7180";
 };
 
+&ap_sar_sensor {
+	status = "okay";
+};
+
+&ap_sar_sensor_i2c {
+	status = "okay";
+};
+
 &keyboard_backlight {
 	status = "okay";
 };

arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor.dtsi

@@ -30,7 +30,12 @@ panel_in_edp: endpoint {
 };
 
 &ap_sar_sensor {
-	status = "okay";
+	semtech,cs0-ground;
+	semtech,combined-sensors = <3>;
+	semtech,resolution = "fine";
+	semtech,startup-sensor = <0>;
+	semtech,proxraw-strength = <8>;
+	semtech,avg-pos-strength = <64>;
 };
 
 ap_ts_pen_1v8: &i2c4 {

arch/arm64/boot/dts/qcom/sc7180-trogdor-r1.dts

@@ -34,11 +34,6 @@ panel_in_edp: endpoint {
 	};
 };
 
-&ap_sar_sensor_i2c {
-	/* Not hooked up */
-	status = "disabled";
-};
-
 ap_ts_pen_1v8: &i2c4 {
 	status = "okay";
 	clock-frequency = <400000>;

arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi

@@ -654,7 +654,6 @@ sn65dsi86_out: endpoint {
 };
 
 ap_sar_sensor_i2c: &i2c5 {
-	status = "okay";
 	clock-frequency = <400000>;
 
 	ap_sar_sensor: proximity@28 {