db820c: enable pmic gpios for pm8994

Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>

arch/arm/dts/dragonboard820c.dts

@@ -61,5 +61,48 @@
 			 clock = <&gcc 0>;
 			clock-frequency = <200000000>;
 		 };
+
+		spmi@400f000 {
+			compatible = "qcom,spmi-pmic-arb";
+			reg = <0x400f800 0x200>,
+			      <0x4400000 0x400000>,
+			      <0x4c00000 0x400000>;
+			#address-cells = <0x1>;
+			#size-cells = <0x1>;
+
+			pmic0: pm8994@0 {
+				compatible = "qcom,spmi-pmic";
+				reg = <0x0 0x1>;
+				#address-cells = <0x1>;
+				#size-cells = <0x1>;
+
+				pm8994_pon: pm8994_pon@800 {
+					compatible = "qcom,pm8994-pwrkey";
+					reg = <0x800 0x96>;
+					#gpio-cells = <2>;
+					gpio-controller;
+					gpio-bank-name="pm8994_key.";
+				};
+
+				pm8994_gpios: pm8994_gpios@c000 {
+					compatible = "qcom,pm8994-gpio";
+					reg = <0xc000 0x400>;
+					gpio-controller;
+					gpio-count = <24>;
+					#gpio-cells = <2>;
+					gpio-bank-name="pm8994.";
+				};
+			};
+
+			pmic1: pm8994@1 {
+				compatible = "qcom,spmi-pmic";
+				reg = <0x1 0x1>;
+				#address-cells = <0x1>;
+				#size-cells = <0x1>;
+			};
+		};
 	};
+
 };
+
+#include "dragonboard820c-uboot.dtsi"

configs/dragonboard820c_defconfig

@@ -23,11 +23,18 @@ CONFIG_CMD_TIMER=y
 CONFIG_CMD_EXT4=y
 CONFIG_CMD_GPT=y
 CONFIG_CMD_MMC=y
+CONFIG_CMD_GPIO=y
+CONFIG_CMD_PMIC=y
 CONFIG_OF_CONTROL=y
 CONFIG_MSM_SERIAL=y
+CONFIG_SPMI_MSM=y
 CONFIG_MMC_SDHCI_MSM=y
 CONFIG_MMC_SDHCI=y
 CONFIG_DM_MMC=y
+CONFIG_DM_GPIO=y
+CONFIG_DM_PMIC=y
+CONFIG_PMIC_PM8916=y
+CONFIG_PM8916_GPIO=y
 CONFIG_CLK=y
 CONFIG_PSCI_RESET=y
 CONFIG_ENV_IS_IN_EXT4=y

drivers/gpio/pm8916_gpio.c

@@ -29,7 +29,7 @@ DECLARE_GLOBAL_DATA_PTR;
 #define REG_STATUS_VAL_MASK    0x1
 
 /* MODE_CTL */
-#define REG_CTL           0x40
+#define REG_CTL		0x40
 #define REG_CTL_MODE_MASK       0x70
 #define REG_CTL_MODE_INPUT      0x00
 #define REG_CTL_MODE_INOUT      0x20
@@ -183,7 +183,7 @@ static int pm8916_gpio_probe(struct udevice *dev)
 		return -ENODEV;
 
 	reg = pmic_reg_read(dev->parent, priv->pid + REG_SUBTYPE);
-	if (reg != 0x5)
+	if (reg != 0x5 && reg != 0x1)
 		return -ENODEV;
 
 	return 0;
@@ -203,6 +203,7 @@ static int pm8916_gpio_ofdata_to_platdata(struct udevice *dev)
 
 static const struct udevice_id pm8916_gpio_ids[] = {
 	{ .compatible = "qcom,pm8916-gpio" },
+	{ .compatible = "qcom,pm8994-gpio" },	/* 22 GPIO's */
 	{ }
 };
 
@@ -278,6 +279,7 @@ static int pm8941_pwrkey_ofdata_to_platdata(struct udevice *dev)
 	struct gpio_dev_priv *uc_priv = dev_get_uclass_priv(dev);
 
 	uc_priv->gpio_count = 2;
+	uc_priv->bank_name = dev_read_string(dev, "gpio-bank-name");
 	if (uc_priv->bank_name == NULL)
 		uc_priv->bank_name = "pm8916_key";
 
@@ -286,6 +288,7 @@ static int pm8941_pwrkey_ofdata_to_platdata(struct udevice *dev)
 
 static const struct udevice_id pm8941_pwrkey_ids[] = {
 	{ .compatible = "qcom,pm8916-pwrkey" },
+	{ .compatible = "qcom,pm8994-pwrkey" },
 	{ }
 };