[PATCH v4 3/3] arm64: dts: qcom: x1e80100-dell-xps13-9345: introduce EC

Describe embedded controller, its interrupt and required thermal zones.
Add EC's reset GPIO to reserved range, as triggering it during device
operation leads to unrecoverable and unusable state.

Signed-off-by: Aleksandrs Vinarskis <[email protected]>
---
 .../boot/dts/qcom/x1e80100-dell-xps13-9345.dts     | 86 +++++++++++++++++++++-
 1 file changed, 84 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/x1e80100-dell-xps13-9345.dts b/arch/arm64/boot/dts/qcom/x1e80100-dell-xps13-9345.dts
index 2be5a37c00cc..2b5b9061c56f 100644
--- a/arch/arm64/boot/dts/qcom/x1e80100-dell-xps13-9345.dts
+++ b/arch/arm64/boot/dts/qcom/x1e80100-dell-xps13-9345.dts
@@ -759,8 +759,32 @@ retimer_ss0_con_sbu_out: endpoint {
 
 &i2c5 {
 	clock-frequency = <100000>;
-	status = "disabled";
-	/* EC @0x3b */
+	status = "okay";
+
+	embedded-controller@3b {
+		compatible = "dell,xps13-9345-ec";
+		reg = <0x3b>;
+
+		interrupts-extended = <&tlmm 66 IRQ_TYPE_LEVEL_LOW>;
+
+		pinctrl-0 = <&ec_int_n_default>;
+		pinctrl-names = "default";
+
+		io-channels = <&pmk8550_vadc ADC5_GEN3_AMUX3_GPIO_100K_PU(1)>,
+			      <&pmk8550_vadc ADC5_GEN3_AMUX4_GPIO_100K_PU(1)>,
+			      <&pmk8550_vadc ADC5_GEN3_AMUX1_THM_100K_PU(1)>,
+			      <&pmk8550_vadc ADC5_GEN3_AMUX2_THM_100K_PU(1)>,
+			      <&pmk8550_vadc ADC5_GEN3_AMUX3_THM_100K_PU(1)>,
+			      <&pmk8550_vadc ADC5_GEN3_AMUX4_THM_100K_PU(1)>,
+			      <&pmk8550_vadc ADC5_GEN3_AMUX5_THM_100K_PU(1)>;
+		io-channel-names = "sys_therm0",
+				   "sys_therm1",
+				   "sys_therm2",
+				   "sys_therm3",
+				   "sys_therm4",
+				   "sys_therm5",
+				   "sys_therm6";
+	};
 };
 
 &i2c7 {
@@ -1025,6 +1049,57 @@ rtmr0_1p8_reg_en: rtmr0-1p8-reg-en-state {
 	};
 };
 
+&pmk8550_vadc {
+	sys_therm0: channel@14c {
+		reg = <ADC5_GEN3_AMUX3_GPIO_100K_PU(1)>;
+		qcom,hw-settle-time = <200>;
+		qcom,ratiometric;
+		label = "lpddr5_therm";
+	};
+
+	sys_therm1: channel@14d {
+		reg = <ADC5_GEN3_AMUX4_GPIO_100K_PU(1)>;
+		qcom,hw-settle-time = <200>;
+		qcom,ratiometric;
+		label = "usb_charger_left_therm";
+	};
+
+	sys_therm2: channel@144 {
+		reg = <ADC5_GEN3_AMUX1_THM_100K_PU(1)>;
+		qcom,hw-settle-time = <200>;
+		qcom,ratiometric;
+		label = "vph_pwr_therm";
+	};
+
+	sys_therm3: channel@145 {
+		reg = <ADC5_GEN3_AMUX2_THM_100K_PU(1)>;
+		qcom,hw-settle-time = <200>;
+		qcom,ratiometric;
+		label = "usb_charger_right_therm";
+	};
+
+	sys_therm4: channel@146 {
+		reg = <ADC5_GEN3_AMUX3_THM_100K_PU(1)>;
+		qcom,hw-settle-time = <200>;
+		qcom,ratiometric;
+		label = "ssd_conn_therm";
+	};
+
+	sys_therm5: channel@147 {
+		reg = <ADC5_GEN3_AMUX4_THM_100K_PU(1)>;
+		qcom,hw-settle-time = <200>;
+		qcom,ratiometric;
+		label = "sys_therm5";
+	};
+
+	sys_therm6: channel@148 {
+		reg = <ADC5_GEN3_AMUX5_THM_100K_PU(1)>;
+		qcom,hw-settle-time = <200>;
+		qcom,ratiometric;
+		label = "keyboard_therm";
+	};
+};
+
 &qupv3_0 {
 	status = "okay";
 };
@@ -1071,6 +1146,7 @@ &smb2360_1_eusb2_repeater {
 
 &tlmm {
 	gpio-reserved-ranges = <44 4>,  /* SPI11 (TPM) */
+			       <65 1>,  /* EC Reset, accessible but yields system unusable */
 			       <76 4>,  /* SPI19 (TZ Protected) */
 			       <238 1>; /* UFS Reset */
 
@@ -1081,6 +1157,12 @@ cam_indicator_en: cam-indicator-en-state {
 		bias-disable;
 	};
 
+	ec_int_n_default: ec-int-n-state {
+		pins = "gpio66";
+		function = "gpio";
+		bias-disable;
+	};
+
 	edp_bl_en: edp-bl-en-state {
 		pins = "gpio74";
 		function = "gpio";

-- 
2.54.0