linux-kernel - [PATCH 1/3] ARM: dts: imx: tolino-shine2: add tps65185

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Message-Id: <20260113-tps65185-dt-v1-1-66d376ba5f65@kemnade.info>
Date: Tue, 13 Jan 2026 16:31:34 +0100
From: Andreas Kemnade <andreas@...nade.info>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>, 
 Sascha Hauer <s.hauer@...gutronix.de>, 
 Pengutronix Kernel Team <kernel@...gutronix.de>, 
 Fabio Estevam <festevam@...il.com>
Cc: devicetree@...r.kernel.org, imx@...ts.linux.dev, 
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 Andreas Kemnade <andreas@...nade.info>
Subject: [PATCH 1/3] ARM: dts: imx: tolino-shine2: add tps65185

Wire up the TPS65185 regulator needed for the display.

Signed-off-by: Andreas Kemnade <andreas@...nade.info>
---
 .../boot/dts/nxp/imx/imx6sl-tolino-shine2hd.dts    | 55 +++++++++++++++++++++-
 1 file changed, 54 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/nxp/imx/imx6sl-tolino-shine2hd.dts b/arch/arm/boot/dts/nxp/imx/imx6sl-tolino-shine2hd.dts
index b6c336e3079e..4c655579f43e 100644
--- a/arch/arm/boot/dts/nxp/imx/imx6sl-tolino-shine2hd.dts
+++ b/arch/arm/boot/dts/nxp/imx/imx6sl-tolino-shine2hd.dts
@@ -37,6 +37,16 @@ chosen {
 		stdout-path = &uart1;
 	};
 
+	epd_pmic_supply: regulator-epd-pmic-in {
+		compatible = "regulator-fixed";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_epd_pmic_supply>;
+		regulator-name = "epd_pmic_supply";
+		gpio = <&gpio2 14 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		startup-delay-us = <20000>;
+	};
+
 	gpio_keys: gpio-keys {
 		compatible = "gpio-keys";
 		pinctrl-names = "default";
@@ -147,8 +157,35 @@ zforce: touchscreen@50 {
 		touchscreen-inverted-x;
 	};
 
-	/* TODO: TPS65185 PMIC for E Ink at 0x68 */
+	tps65185: pmic@68 {
+		compatible = "ti,tps65185";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_tps65185_gpio>;
+		reg = <0x68>;
+		interrupt-parent = <&gpio2>;
+		interrupts = <9 IRQ_TYPE_LEVEL_LOW>;
+		vin-supply = <&epd_pmic_supply>;
+		pwr-good-gpios = <&gpio2 13 GPIO_ACTIVE_HIGH>;
+		vcom-ctrl-gpios = <&gpio2 3 GPIO_ACTIVE_HIGH>;
+		wakeup-gpios = <&gpio2 7 GPIO_ACTIVE_HIGH>;
+		enable-gpios = <&gpio2 8 GPIO_ACTIVE_HIGH>;
+
+		regulators {
+			vcom_reg: vcom {
+				regulator-name = "vcom";
+			};
+
+			vposneg_reg: vposneg {
+				regulator-name = "vposneg";
+				regulator-min-microvolt = <15000000>;
+				regulator-max-microvolt = <15000000>;
+			};
 
+			v3p3_reg: v3p3 {
+				regulator-name = "v3p3";
+			};
+		};
+	};
 };
 
 &i2c3 {
@@ -328,6 +365,12 @@ MX6SL_PAD_EPDC_PWRCTRL3__GPIO2_IO10 0x10059
 		>;
 	};
 
+	pinctrl_epd_pmic_supply: epdc-pmic-supplygrp {
+		fsl,pins = <
+			MX6SL_PAD_EPDC_PWRWAKEUP__GPIO2_IO14 0x40010059 /* pwrall */
+		>;
+	};
+
 	pinctrl_gpio_keys: gpio-keysgrp {
 		fsl,pins = <
 			MX6SL_PAD_SD1_DAT1__GPIO5_IO08  0x17059
@@ -425,6 +468,16 @@ MX6SL_PAD_KEY_COL2__GPIO3_IO28	0x1b8b1 /* ricoh619 bat_low_int */
 		>;
 	};
 
+	pinctrl_tps65185_gpio: tps65185-gpio-grp {
+		fsl,pins = <
+			MX6SL_PAD_EPDC_VCOM0__GPIO2_IO03	0x40010059 /* vcom_ctrl */
+			MX6SL_PAD_EPDC_PWRCTRL0__GPIO2_IO07	0x40010059 /* wakeup */
+			MX6SL_PAD_EPDC_PWRCTRL1__GPIO2_IO08	0x40010059 /* enable */
+			MX6SL_PAD_EPDC_PWRCTRL2__GPIO2_IO09	0x17059 /* nINT */
+			MX6SL_PAD_EPDC_PWRSTAT__GPIO2_IO13	0x17059 /* pwr-good */
+		>;
+	};
+
 	pinctrl_uart1: uart1grp {
 		fsl,pins = <
 			MX6SL_PAD_UART1_TXD__UART1_TX_DATA 0x1b0b1

-- 
2.47.3