Adding upstream version 6.1.76.upstream/6.1.76upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1262 insertions, 0 deletions

diff --git a/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c b/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c
new file mode 100644
index 000000000..8c31a8f6b
--- /dev/null
+++ b/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c
@@ -0,0 +1,1262 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2012-2014, 2016-2021 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2021-2022 Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+#include <linux/gpio/driver.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_irq.h>
+#include <linux/pinctrl/pinconf-generic.h>
+#include <linux/pinctrl/pinconf.h>
+#include <linux/pinctrl/pinmux.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include <linux/spmi.h>
+#include <linux/types.h>
+
+#include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
+
+#include "../core.h"
+#include "../pinctrl-utils.h"
+
+#define PMIC_GPIO_ADDRESS_RANGE			0x100
+
+/* type and subtype registers base address offsets */
+#define PMIC_GPIO_REG_TYPE			0x4
+#define PMIC_GPIO_REG_SUBTYPE			0x5
+
+/* GPIO peripheral type and subtype out_values */
+#define PMIC_GPIO_TYPE				0x10
+#define PMIC_GPIO_SUBTYPE_GPIO_4CH		0x1
+#define PMIC_GPIO_SUBTYPE_GPIOC_4CH		0x5
+#define PMIC_GPIO_SUBTYPE_GPIO_8CH		0x9
+#define PMIC_GPIO_SUBTYPE_GPIOC_8CH		0xd
+#define PMIC_GPIO_SUBTYPE_GPIO_LV		0x10
+#define PMIC_GPIO_SUBTYPE_GPIO_MV		0x11
+#define PMIC_GPIO_SUBTYPE_GPIO_LV_VIN2		0x12
+#define PMIC_GPIO_SUBTYPE_GPIO_MV_VIN3		0x13
+
+#define PMIC_MPP_REG_RT_STS			0x10
+#define PMIC_MPP_REG_RT_STS_VAL_MASK		0x1
+
+/* control register base address offsets */
+#define PMIC_GPIO_REG_MODE_CTL			0x40
+#define PMIC_GPIO_REG_DIG_VIN_CTL		0x41
+#define PMIC_GPIO_REG_DIG_PULL_CTL		0x42
+#define PMIC_GPIO_REG_LV_MV_DIG_OUT_SOURCE_CTL	0x44
+#define PMIC_GPIO_REG_DIG_IN_CTL		0x43
+#define PMIC_GPIO_REG_DIG_OUT_CTL		0x45
+#define PMIC_GPIO_REG_EN_CTL			0x46
+#define PMIC_GPIO_REG_LV_MV_ANA_PASS_THRU_SEL	0x4A
+
+/* PMIC_GPIO_REG_MODE_CTL */
+#define PMIC_GPIO_REG_MODE_VALUE_SHIFT		0x1
+#define PMIC_GPIO_REG_MODE_FUNCTION_SHIFT	1
+#define PMIC_GPIO_REG_MODE_FUNCTION_MASK	0x7
+#define PMIC_GPIO_REG_MODE_DIR_SHIFT		4
+#define PMIC_GPIO_REG_MODE_DIR_MASK		0x7
+
+#define PMIC_GPIO_MODE_DIGITAL_INPUT		0
+#define PMIC_GPIO_MODE_DIGITAL_OUTPUT		1
+#define PMIC_GPIO_MODE_DIGITAL_INPUT_OUTPUT	2
+#define PMIC_GPIO_MODE_ANALOG_PASS_THRU		3
+#define PMIC_GPIO_REG_LV_MV_MODE_DIR_MASK	0x3
+
+/* PMIC_GPIO_REG_DIG_VIN_CTL */
+#define PMIC_GPIO_REG_VIN_SHIFT			0
+#define PMIC_GPIO_REG_VIN_MASK			0x7
+
+/* PMIC_GPIO_REG_DIG_PULL_CTL */
+#define PMIC_GPIO_REG_PULL_SHIFT		0
+#define PMIC_GPIO_REG_PULL_MASK			0x7
+
+#define PMIC_GPIO_PULL_DOWN			4
+#define PMIC_GPIO_PULL_DISABLE			5
+
+/* PMIC_GPIO_REG_LV_MV_DIG_OUT_SOURCE_CTL for LV/MV */
+#define PMIC_GPIO_LV_MV_OUTPUT_INVERT		0x80
+#define PMIC_GPIO_LV_MV_OUTPUT_INVERT_SHIFT	7
+#define PMIC_GPIO_LV_MV_OUTPUT_SOURCE_SEL_MASK	0xF
+
+/* PMIC_GPIO_REG_DIG_IN_CTL */
+#define PMIC_GPIO_LV_MV_DIG_IN_DTEST_EN		0x80
+#define PMIC_GPIO_LV_MV_DIG_IN_DTEST_SEL_MASK	0x7
+#define PMIC_GPIO_DIG_IN_DTEST_SEL_MASK		0xf
+
+/* PMIC_GPIO_REG_DIG_OUT_CTL */
+#define PMIC_GPIO_REG_OUT_STRENGTH_SHIFT	0
+#define PMIC_GPIO_REG_OUT_STRENGTH_MASK		0x3
+#define PMIC_GPIO_REG_OUT_TYPE_SHIFT		4
+#define PMIC_GPIO_REG_OUT_TYPE_MASK		0x3
+
+/*
+ * Output type - indicates pin should be configured as push-pull,
+ * open drain or open source.
+ */
+#define PMIC_GPIO_OUT_BUF_CMOS			0
+#define PMIC_GPIO_OUT_BUF_OPEN_DRAIN_NMOS	1
+#define PMIC_GPIO_OUT_BUF_OPEN_DRAIN_PMOS	2
+
+#define PMIC_GPIO_OUT_STRENGTH_LOW		1
+#define PMIC_GPIO_OUT_STRENGTH_HIGH		3
+
+/* PMIC_GPIO_REG_EN_CTL */
+#define PMIC_GPIO_REG_MASTER_EN_SHIFT		7
+
+#define PMIC_GPIO_PHYSICAL_OFFSET		1
+
+/* PMIC_GPIO_REG_LV_MV_ANA_PASS_THRU_SEL */
+#define PMIC_GPIO_LV_MV_ANA_MUX_SEL_MASK		0x3
+
+/* Qualcomm specific pin configurations */
+#define PMIC_GPIO_CONF_PULL_UP			(PIN_CONFIG_END + 1)
+#define PMIC_GPIO_CONF_STRENGTH			(PIN_CONFIG_END + 2)
+#define PMIC_GPIO_CONF_ATEST			(PIN_CONFIG_END + 3)
+#define PMIC_GPIO_CONF_ANALOG_PASS		(PIN_CONFIG_END + 4)
+#define PMIC_GPIO_CONF_DTEST_BUFFER		(PIN_CONFIG_END + 5)
+
+/* The index of each function in pmic_gpio_functions[] array */
+enum pmic_gpio_func_index {
+	PMIC_GPIO_FUNC_INDEX_NORMAL,
+	PMIC_GPIO_FUNC_INDEX_PAIRED,
+	PMIC_GPIO_FUNC_INDEX_FUNC1,
+	PMIC_GPIO_FUNC_INDEX_FUNC2,
+	PMIC_GPIO_FUNC_INDEX_FUNC3,
+	PMIC_GPIO_FUNC_INDEX_FUNC4,
+	PMIC_GPIO_FUNC_INDEX_DTEST1,
+	PMIC_GPIO_FUNC_INDEX_DTEST2,
+	PMIC_GPIO_FUNC_INDEX_DTEST3,
+	PMIC_GPIO_FUNC_INDEX_DTEST4,
+};
+
+/**
+ * struct pmic_gpio_pad - keep current GPIO settings
+ * @base: Address base in SPMI device.
+ * @is_enabled: Set to false when GPIO should be put in high Z state.
+ * @out_value: Cached pin output value
+ * @have_buffer: Set to true if GPIO output could be configured in push-pull,
+ *	open-drain or open-source mode.
+ * @output_enabled: Set to true if GPIO output logic is enabled.
+ * @input_enabled: Set to true if GPIO input buffer logic is enabled.
+ * @analog_pass: Set to true if GPIO is in analog-pass-through mode.
+ * @lv_mv_type: Set to true if GPIO subtype is GPIO_LV(0x10) or GPIO_MV(0x11).
+ * @num_sources: Number of power-sources supported by this GPIO.
+ * @power_source: Current power-source used.
+ * @buffer_type: Push-pull, open-drain or open-source.
+ * @pullup: Constant current which flow trough GPIO output buffer.
+ * @strength: No, Low, Medium, High
+ * @function: See pmic_gpio_functions[]
+ * @atest: the ATEST selection for GPIO analog-pass-through mode
+ * @dtest_buffer: the DTEST buffer selection for digital input mode.
+ */
+struct pmic_gpio_pad {
+	u16		base;
+	bool		is_enabled;
+	bool		out_value;
+	bool		have_buffer;
+	bool		output_enabled;
+	bool		input_enabled;
+	bool		analog_pass;
+	bool		lv_mv_type;
+	unsigned int	num_sources;
+	unsigned int	power_source;
+	unsigned int	buffer_type;
+	unsigned int	pullup;
+	unsigned int	strength;
+	unsigned int	function;
+	unsigned int	atest;
+	unsigned int	dtest_buffer;
+};
+
+struct pmic_gpio_state {
+	struct device	*dev;
+	struct regmap	*map;
+	struct pinctrl_dev *ctrl;
+	struct gpio_chip chip;
+	u8 usid;
+	u8 pid_base;
+};
+
+static const struct pinconf_generic_params pmic_gpio_bindings[] = {
+	{"qcom,pull-up-strength",	PMIC_GPIO_CONF_PULL_UP,		0},
+	{"qcom,drive-strength",		PMIC_GPIO_CONF_STRENGTH,	0},
+	{"qcom,atest",			PMIC_GPIO_CONF_ATEST,		0},
+	{"qcom,analog-pass",		PMIC_GPIO_CONF_ANALOG_PASS,	0},
+	{"qcom,dtest-buffer",           PMIC_GPIO_CONF_DTEST_BUFFER,    0},
+};
+
+#ifdef CONFIG_DEBUG_FS
+static const struct pin_config_item pmic_conf_items[ARRAY_SIZE(pmic_gpio_bindings)] = {
+	PCONFDUMP(PMIC_GPIO_CONF_PULL_UP,  "pull up strength", NULL, true),
+	PCONFDUMP(PMIC_GPIO_CONF_STRENGTH, "drive-strength", NULL, true),
+	PCONFDUMP(PMIC_GPIO_CONF_ATEST, "atest", NULL, true),
+	PCONFDUMP(PMIC_GPIO_CONF_ANALOG_PASS, "analog-pass", NULL, true),
+	PCONFDUMP(PMIC_GPIO_CONF_DTEST_BUFFER, "dtest-buffer", NULL, true),
+};
+#endif
+
+static const char *const pmic_gpio_groups[] = {
+	"gpio1", "gpio2", "gpio3", "gpio4", "gpio5", "gpio6", "gpio7", "gpio8",
+	"gpio9", "gpio10", "gpio11", "gpio12", "gpio13", "gpio14", "gpio15",
+	"gpio16", "gpio17", "gpio18", "gpio19", "gpio20", "gpio21", "gpio22",
+	"gpio23", "gpio24", "gpio25", "gpio26", "gpio27", "gpio28", "gpio29",
+	"gpio30", "gpio31", "gpio32", "gpio33", "gpio34", "gpio35", "gpio36",
+};
+
+static const char *const pmic_gpio_functions[] = {
+	[PMIC_GPIO_FUNC_INDEX_NORMAL]	= PMIC_GPIO_FUNC_NORMAL,
+	[PMIC_GPIO_FUNC_INDEX_PAIRED]	= PMIC_GPIO_FUNC_PAIRED,
+	[PMIC_GPIO_FUNC_INDEX_FUNC1]	= PMIC_GPIO_FUNC_FUNC1,
+	[PMIC_GPIO_FUNC_INDEX_FUNC2]	= PMIC_GPIO_FUNC_FUNC2,
+	[PMIC_GPIO_FUNC_INDEX_FUNC3]	= PMIC_GPIO_FUNC_FUNC3,
+	[PMIC_GPIO_FUNC_INDEX_FUNC4]	= PMIC_GPIO_FUNC_FUNC4,
+	[PMIC_GPIO_FUNC_INDEX_DTEST1]	= PMIC_GPIO_FUNC_DTEST1,
+	[PMIC_GPIO_FUNC_INDEX_DTEST2]	= PMIC_GPIO_FUNC_DTEST2,
+	[PMIC_GPIO_FUNC_INDEX_DTEST3]	= PMIC_GPIO_FUNC_DTEST3,
+	[PMIC_GPIO_FUNC_INDEX_DTEST4]	= PMIC_GPIO_FUNC_DTEST4,
+};
+
+static int pmic_gpio_read(struct pmic_gpio_state *state,
+			  struct pmic_gpio_pad *pad, unsigned int addr)
+{
+	unsigned int val;
+	int ret;
+
+	ret = regmap_read(state->map, pad->base + addr, &val);
+	if (ret < 0)
+		dev_err(state->dev, "read 0x%x failed\n", addr);
+	else
+		ret = val;
+
+	return ret;
+}
+
+static int pmic_gpio_write(struct pmic_gpio_state *state,
+			   struct pmic_gpio_pad *pad, unsigned int addr,
+			   unsigned int val)
+{
+	int ret;
+
+	ret = regmap_write(state->map, pad->base + addr, val);
+	if (ret < 0)
+		dev_err(state->dev, "write 0x%x failed\n", addr);
+
+	return ret;
+}
+
+static int pmic_gpio_get_groups_count(struct pinctrl_dev *pctldev)
+{
+	/* Every PIN is a group */
+	return pctldev->desc->npins;
+}
+
+static const char *pmic_gpio_get_group_name(struct pinctrl_dev *pctldev,
+					    unsigned pin)
+{
+	return pctldev->desc->pins[pin].name;
+}
+
+static int pmic_gpio_get_group_pins(struct pinctrl_dev *pctldev, unsigned pin,
+				    const unsigned **pins, unsigned *num_pins)
+{
+	*pins = &pctldev->desc->pins[pin].number;
+	*num_pins = 1;
+	return 0;
+}
+
+static const struct pinctrl_ops pmic_gpio_pinctrl_ops = {
+	.get_groups_count	= pmic_gpio_get_groups_count,
+	.get_group_name		= pmic_gpio_get_group_name,
+	.get_group_pins		= pmic_gpio_get_group_pins,
+	.dt_node_to_map		= pinconf_generic_dt_node_to_map_group,
+	.dt_free_map		= pinctrl_utils_free_map,
+};
+
+static int pmic_gpio_get_functions_count(struct pinctrl_dev *pctldev)
+{
+	return ARRAY_SIZE(pmic_gpio_functions);
+}
+
+static const char *pmic_gpio_get_function_name(struct pinctrl_dev *pctldev,
+					       unsigned function)
+{
+	return pmic_gpio_functions[function];
+}
+
+static int pmic_gpio_get_function_groups(struct pinctrl_dev *pctldev,
+					 unsigned function,
+					 const char *const **groups,
+					 unsigned *const num_qgroups)
+{
+	*groups = pmic_gpio_groups;
+	*num_qgroups = pctldev->desc->npins;
+	return 0;
+}
+
+static int pmic_gpio_set_mux(struct pinctrl_dev *pctldev, unsigned function,
+				unsigned pin)
+{
+	struct pmic_gpio_state *state = pinctrl_dev_get_drvdata(pctldev);
+	struct pmic_gpio_pad *pad;
+	unsigned int val;
+	int ret;
+
+	if (function > PMIC_GPIO_FUNC_INDEX_DTEST4) {
+		pr_err("function: %d is not defined\n", function);
+		return -EINVAL;
+	}
+
+	pad = pctldev->desc->pins[pin].drv_data;
+	/*
+	 * Non-LV/MV subtypes only support 2 special functions,
+	 * offsetting the dtestx function values by 2
+	 */
+	if (!pad->lv_mv_type) {
+		if (function == PMIC_GPIO_FUNC_INDEX_FUNC3 ||
+				function == PMIC_GPIO_FUNC_INDEX_FUNC4) {
+			pr_err("LV/MV subtype doesn't have func3/func4\n");
+			return -EINVAL;
+		}
+		if (function >= PMIC_GPIO_FUNC_INDEX_DTEST1)
+			function -= (PMIC_GPIO_FUNC_INDEX_DTEST1 -
+					PMIC_GPIO_FUNC_INDEX_FUNC3);
+	}
+
+	pad->function = function;
+
+	if (pad->analog_pass)
+		val = PMIC_GPIO_MODE_ANALOG_PASS_THRU;
+	else if (pad->output_enabled && pad->input_enabled)
+		val = PMIC_GPIO_MODE_DIGITAL_INPUT_OUTPUT;
+	else if (pad->output_enabled)
+		val = PMIC_GPIO_MODE_DIGITAL_OUTPUT;
+	else
+		val = PMIC_GPIO_MODE_DIGITAL_INPUT;
+
+	if (pad->lv_mv_type) {
+		ret = pmic_gpio_write(state, pad,
+				PMIC_GPIO_REG_MODE_CTL, val);
+		if (ret < 0)
+			return ret;
+
+		val = pad->atest - 1;
+		ret = pmic_gpio_write(state, pad,
+				PMIC_GPIO_REG_LV_MV_ANA_PASS_THRU_SEL, val);
+		if (ret < 0)
+			return ret;
+
+		val = pad->out_value
+			<< PMIC_GPIO_LV_MV_OUTPUT_INVERT_SHIFT;
+		val |= pad->function
+			& PMIC_GPIO_LV_MV_OUTPUT_SOURCE_SEL_MASK;
+		ret = pmic_gpio_write(state, pad,
+			PMIC_GPIO_REG_LV_MV_DIG_OUT_SOURCE_CTL, val);
+		if (ret < 0)
+			return ret;
+	} else {
+		val = val << PMIC_GPIO_REG_MODE_DIR_SHIFT;
+		val |= pad->function << PMIC_GPIO_REG_MODE_FUNCTION_SHIFT;
+		val |= pad->out_value & PMIC_GPIO_REG_MODE_VALUE_SHIFT;
+
+		ret = pmic_gpio_write(state, pad, PMIC_GPIO_REG_MODE_CTL, val);
+		if (ret < 0)
+			return ret;
+	}
+
+	val = pad->is_enabled << PMIC_GPIO_REG_MASTER_EN_SHIFT;
+
+	return pmic_gpio_write(state, pad, PMIC_GPIO_REG_EN_CTL, val);
+}
+
+static const struct pinmux_ops pmic_gpio_pinmux_ops = {
+	.get_functions_count	= pmic_gpio_get_functions_count,
+	.get_function_name	= pmic_gpio_get_function_name,
+	.get_function_groups	= pmic_gpio_get_function_groups,
+	.set_mux		= pmic_gpio_set_mux,
+};
+
+static int pmic_gpio_config_get(struct pinctrl_dev *pctldev,
+				unsigned int pin, unsigned long *config)
+{
+	unsigned param = pinconf_to_config_param(*config);
+	struct pmic_gpio_pad *pad;
+	unsigned arg;
+
+	pad = pctldev->desc->pins[pin].drv_data;
+
+	switch (param) {
+	case PIN_CONFIG_DRIVE_PUSH_PULL:
+		if (pad->buffer_type != PMIC_GPIO_OUT_BUF_CMOS)
+			return -EINVAL;
+		arg = 1;
+		break;
+	case PIN_CONFIG_DRIVE_OPEN_DRAIN:
+		if (pad->buffer_type != PMIC_GPIO_OUT_BUF_OPEN_DRAIN_NMOS)
+			return -EINVAL;
+		arg = 1;
+		break;
+	case PIN_CONFIG_DRIVE_OPEN_SOURCE:
+		if (pad->buffer_type != PMIC_GPIO_OUT_BUF_OPEN_DRAIN_PMOS)
+			return -EINVAL;
+		arg = 1;
+		break;
+	case PIN_CONFIG_BIAS_PULL_DOWN:
+		if (pad->pullup != PMIC_GPIO_PULL_DOWN)
+			return -EINVAL;
+		arg = 1;
+		break;
+	case PIN_CONFIG_BIAS_DISABLE:
+		if (pad->pullup != PMIC_GPIO_PULL_DISABLE)
+			return -EINVAL;
+		arg = 1;
+		break;
+	case PIN_CONFIG_BIAS_PULL_UP:
+		if (pad->pullup != PMIC_GPIO_PULL_UP_30)
+			return -EINVAL;
+		arg = 1;
+		break;
+	case PIN_CONFIG_BIAS_HIGH_IMPEDANCE:
+		if (pad->is_enabled)
+			return -EINVAL;
+		arg = 1;
+		break;
+	case PIN_CONFIG_POWER_SOURCE:
+		arg = pad->power_source;
+		break;
+	case PIN_CONFIG_INPUT_ENABLE:
+		if (!pad->input_enabled)
+			return -EINVAL;
+		arg = 1;
+		break;
+	case PIN_CONFIG_OUTPUT_ENABLE:
+		arg = pad->output_enabled;
+		break;
+	case PIN_CONFIG_OUTPUT:
+		arg = pad->out_value;
+		break;
+	case PMIC_GPIO_CONF_PULL_UP:
+		arg = pad->pullup;
+		break;
+	case PMIC_GPIO_CONF_STRENGTH:
+		switch (pad->strength) {
+		case PMIC_GPIO_OUT_STRENGTH_HIGH:
+			arg = PMIC_GPIO_STRENGTH_HIGH;
+			break;
+		case PMIC_GPIO_OUT_STRENGTH_LOW:
+			arg = PMIC_GPIO_STRENGTH_LOW;
+			break;
+		default:
+			arg = pad->strength;
+			break;
+		}
+		break;
+	case PMIC_GPIO_CONF_ATEST:
+		arg = pad->atest;
+		break;
+	case PMIC_GPIO_CONF_ANALOG_PASS:
+		arg = pad->analog_pass;
+		break;
+	case PMIC_GPIO_CONF_DTEST_BUFFER:
+		arg = pad->dtest_buffer;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	*config = pinconf_to_config_packed(param, arg);
+	return 0;
+}
+
+static int pmic_gpio_config_set(struct pinctrl_dev *pctldev, unsigned int pin,
+				unsigned long *configs, unsigned nconfs)
+{
+	struct pmic_gpio_state *state = pinctrl_dev_get_drvdata(pctldev);
+	struct pmic_gpio_pad *pad;
+	unsigned param, arg;
+	unsigned int val;
+	int i, ret;
+
+	pad = pctldev->desc->pins[pin].drv_data;
+
+	pad->is_enabled = true;
+	for (i = 0; i < nconfs; i++) {
+		param = pinconf_to_config_param(configs[i]);
+		arg = pinconf_to_config_argument(configs[i]);
+
+		switch (param) {
+		case PIN_CONFIG_DRIVE_PUSH_PULL:
+			pad->buffer_type = PMIC_GPIO_OUT_BUF_CMOS;
+			break;
+		case PIN_CONFIG_DRIVE_OPEN_DRAIN:
+			if (!pad->have_buffer)
+				return -EINVAL;
+			pad->buffer_type = PMIC_GPIO_OUT_BUF_OPEN_DRAIN_NMOS;
+			break;
+		case PIN_CONFIG_DRIVE_OPEN_SOURCE:
+			if (!pad->have_buffer)
+				return -EINVAL;
+			pad->buffer_type = PMIC_GPIO_OUT_BUF_OPEN_DRAIN_PMOS;
+			break;
+		case PIN_CONFIG_BIAS_DISABLE:
+			pad->pullup = PMIC_GPIO_PULL_DISABLE;
+			break;
+		case PIN_CONFIG_BIAS_PULL_UP:
+			pad->pullup = PMIC_GPIO_PULL_UP_30;
+			break;
+		case PIN_CONFIG_BIAS_PULL_DOWN:
+			if (arg)
+				pad->pullup = PMIC_GPIO_PULL_DOWN;
+			else
+				pad->pullup = PMIC_GPIO_PULL_DISABLE;
+			break;
+		case PIN_CONFIG_BIAS_HIGH_IMPEDANCE:
+			pad->is_enabled = false;
+			break;
+		case PIN_CONFIG_POWER_SOURCE:
+			if (arg >= pad->num_sources)
+				return -EINVAL;
+			pad->power_source = arg;
+			break;
+		case PIN_CONFIG_INPUT_ENABLE:
+			pad->input_enabled = arg ? true : false;
+			break;
+		case PIN_CONFIG_OUTPUT_ENABLE:
+			pad->output_enabled = arg ? true : false;
+			break;
+		case PIN_CONFIG_OUTPUT:
+			pad->output_enabled = true;
+			pad->out_value = arg;
+			break;
+		case PMIC_GPIO_CONF_PULL_UP:
+			if (arg > PMIC_GPIO_PULL_UP_1P5_30)
+				return -EINVAL;
+			pad->pullup = arg;
+			break;
+		case PMIC_GPIO_CONF_STRENGTH:
+			if (arg > PMIC_GPIO_STRENGTH_LOW)
+				return -EINVAL;
+			switch (arg) {
+			case PMIC_GPIO_STRENGTH_HIGH:
+				pad->strength = PMIC_GPIO_OUT_STRENGTH_HIGH;
+				break;
+			case PMIC_GPIO_STRENGTH_LOW:
+				pad->strength = PMIC_GPIO_OUT_STRENGTH_LOW;
+				break;
+			default:
+				pad->strength = arg;
+				break;
+			}
+			break;
+		case PMIC_GPIO_CONF_ATEST:
+			if (!pad->lv_mv_type || arg > 4)
+				return -EINVAL;
+			pad->atest = arg;
+			break;
+		case PMIC_GPIO_CONF_ANALOG_PASS:
+			if (!pad->lv_mv_type)
+				return -EINVAL;
+			pad->analog_pass = true;
+			break;
+		case PMIC_GPIO_CONF_DTEST_BUFFER:
+			if (arg > 4)
+				return -EINVAL;
+			pad->dtest_buffer = arg;
+			break;
+		default:
+			return -EINVAL;
+		}
+	}
+
+	val = pad->power_source << PMIC_GPIO_REG_VIN_SHIFT;
+
+	ret = pmic_gpio_write(state, pad, PMIC_GPIO_REG_DIG_VIN_CTL, val);
+	if (ret < 0)
+		return ret;
+
+	val = pad->pullup << PMIC_GPIO_REG_PULL_SHIFT;
+
+	ret = pmic_gpio_write(state, pad, PMIC_GPIO_REG_DIG_PULL_CTL, val);
+	if (ret < 0)
+		return ret;
+
+	val = pad->buffer_type << PMIC_GPIO_REG_OUT_TYPE_SHIFT;
+	val |= pad->strength << PMIC_GPIO_REG_OUT_STRENGTH_SHIFT;
+
+	ret = pmic_gpio_write(state, pad, PMIC_GPIO_REG_DIG_OUT_CTL, val);
+	if (ret < 0)
+		return ret;
+
+	if (pad->dtest_buffer == 0) {
+		val = 0;
+	} else {
+		if (pad->lv_mv_type) {
+			val = pad->dtest_buffer - 1;
+			val |= PMIC_GPIO_LV_MV_DIG_IN_DTEST_EN;
+		} else {
+			val = BIT(pad->dtest_buffer - 1);
+		}
+	}
+	ret = pmic_gpio_write(state, pad, PMIC_GPIO_REG_DIG_IN_CTL, val);
+	if (ret < 0)
+		return ret;
+
+	if (pad->analog_pass)
+		val = PMIC_GPIO_MODE_ANALOG_PASS_THRU;
+	else if (pad->output_enabled && pad->input_enabled)
+		val = PMIC_GPIO_MODE_DIGITAL_INPUT_OUTPUT;
+	else if (pad->output_enabled)
+		val = PMIC_GPIO_MODE_DIGITAL_OUTPUT;
+	else
+		val = PMIC_GPIO_MODE_DIGITAL_INPUT;
+
+	if (pad->lv_mv_type) {
+		ret = pmic_gpio_write(state, pad,
+				PMIC_GPIO_REG_MODE_CTL, val);
+		if (ret < 0)
+			return ret;
+
+		val = pad->atest - 1;
+		ret = pmic_gpio_write(state, pad,
+				PMIC_GPIO_REG_LV_MV_ANA_PASS_THRU_SEL, val);
+		if (ret < 0)
+			return ret;
+
+		val = pad->out_value
+			<< PMIC_GPIO_LV_MV_OUTPUT_INVERT_SHIFT;
+		val |= pad->function
+			& PMIC_GPIO_LV_MV_OUTPUT_SOURCE_SEL_MASK;
+		ret = pmic_gpio_write(state, pad,
+			PMIC_GPIO_REG_LV_MV_DIG_OUT_SOURCE_CTL, val);
+		if (ret < 0)
+			return ret;
+	} else {
+		val = val << PMIC_GPIO_REG_MODE_DIR_SHIFT;
+		val |= pad->function << PMIC_GPIO_REG_MODE_FUNCTION_SHIFT;
+		val |= pad->out_value & PMIC_GPIO_REG_MODE_VALUE_SHIFT;
+
+		ret = pmic_gpio_write(state, pad, PMIC_GPIO_REG_MODE_CTL, val);
+		if (ret < 0)
+			return ret;
+	}
+
+	val = pad->is_enabled << PMIC_GPIO_REG_MASTER_EN_SHIFT;
+
+	ret = pmic_gpio_write(state, pad, PMIC_GPIO_REG_EN_CTL, val);
+
+	return ret;
+}
+
+static void pmic_gpio_config_dbg_show(struct pinctrl_dev *pctldev,
+				      struct seq_file *s, unsigned pin)
+{
+	struct pmic_gpio_state *state = pinctrl_dev_get_drvdata(pctldev);
+	struct pmic_gpio_pad *pad;
+	int ret, val, function;
+
+	static const char *const biases[] = {
+		"pull-up 30uA", "pull-up 1.5uA", "pull-up 31.5uA",
+		"pull-up 1.5uA + 30uA boost", "pull-down 10uA", "no pull"
+	};
+	static const char *const buffer_types[] = {
+		"push-pull", "open-drain", "open-source"
+	};
+	static const char *const strengths[] = {
+		"no", "high", "medium", "low"
+	};
+
+	pad = pctldev->desc->pins[pin].drv_data;
+
+	seq_printf(s, " gpio%-2d:", pin + PMIC_GPIO_PHYSICAL_OFFSET);
+
+	val = pmic_gpio_read(state, pad, PMIC_GPIO_REG_EN_CTL);
+
+	if (val < 0 || !(val >> PMIC_GPIO_REG_MASTER_EN_SHIFT)) {
+		seq_puts(s, " ---");
+	} else {
+		if (pad->input_enabled) {
+			ret = pmic_gpio_read(state, pad, PMIC_MPP_REG_RT_STS);
+			if (ret < 0)
+				return;
+
+			ret &= PMIC_MPP_REG_RT_STS_VAL_MASK;
+			pad->out_value = ret;
+		}
+		/*
+		 * For the non-LV/MV subtypes only 2 special functions are
+		 * available, offsetting the dtest function values by 2.
+		 */
+		function = pad->function;
+		if (!pad->lv_mv_type &&
+				pad->function >= PMIC_GPIO_FUNC_INDEX_FUNC3)
+			function += PMIC_GPIO_FUNC_INDEX_DTEST1 -
+				PMIC_GPIO_FUNC_INDEX_FUNC3;
+
+		if (pad->analog_pass)
+			seq_puts(s, " analog-pass");
+		else
+			seq_printf(s, " %-4s",
+					pad->output_enabled ? "out" : "in");
+		seq_printf(s, " %-4s", pad->out_value ? "high" : "low");
+		seq_printf(s, " %-7s", pmic_gpio_functions[function]);
+		seq_printf(s, " vin-%d", pad->power_source);
+		seq_printf(s, " %-27s", biases[pad->pullup]);
+		seq_printf(s, " %-10s", buffer_types[pad->buffer_type]);
+		seq_printf(s, " %-7s", strengths[pad->strength]);
+		seq_printf(s, " atest-%d", pad->atest);
+		seq_printf(s, " dtest-%d", pad->dtest_buffer);
+	}
+}
+
+static const struct pinconf_ops pmic_gpio_pinconf_ops = {
+	.is_generic			= true,
+	.pin_config_group_get		= pmic_gpio_config_get,
+	.pin_config_group_set		= pmic_gpio_config_set,
+	.pin_config_group_dbg_show	= pmic_gpio_config_dbg_show,
+};
+
+static int pmic_gpio_direction_input(struct gpio_chip *chip, unsigned pin)
+{
+	struct pmic_gpio_state *state = gpiochip_get_data(chip);
+	unsigned long config;
+
+	config = pinconf_to_config_packed(PIN_CONFIG_INPUT_ENABLE, 1);
+
+	return pmic_gpio_config_set(state->ctrl, pin, &config, 1);
+}
+
+static int pmic_gpio_direction_output(struct gpio_chip *chip,
+				      unsigned pin, int val)
+{
+	struct pmic_gpio_state *state = gpiochip_get_data(chip);
+	unsigned long config;
+
+	config = pinconf_to_config_packed(PIN_CONFIG_OUTPUT, val);
+
+	return pmic_gpio_config_set(state->ctrl, pin, &config, 1);
+}
+
+static int pmic_gpio_get(struct gpio_chip *chip, unsigned pin)
+{
+	struct pmic_gpio_state *state = gpiochip_get_data(chip);
+	struct pmic_gpio_pad *pad;
+	int ret;
+
+	pad = state->ctrl->desc->pins[pin].drv_data;
+
+	if (!pad->is_enabled)
+		return -EINVAL;
+
+	if (pad->input_enabled) {
+		ret = pmic_gpio_read(state, pad, PMIC_MPP_REG_RT_STS);
+		if (ret < 0)
+			return ret;
+
+		pad->out_value = ret & PMIC_MPP_REG_RT_STS_VAL_MASK;
+	}
+
+	return !!pad->out_value;
+}
+
+static void pmic_gpio_set(struct gpio_chip *chip, unsigned pin, int value)
+{
+	struct pmic_gpio_state *state = gpiochip_get_data(chip);
+	unsigned long config;
+
+	config = pinconf_to_config_packed(PIN_CONFIG_OUTPUT, value);
+
+	pmic_gpio_config_set(state->ctrl, pin, &config, 1);
+}
+
+static int pmic_gpio_of_xlate(struct gpio_chip *chip,
+			      const struct of_phandle_args *gpio_desc,
+			      u32 *flags)
+{
+	if (chip->of_gpio_n_cells < 2)
+		return -EINVAL;
+
+	if (flags)
+		*flags = gpio_desc->args[1];
+
+	return gpio_desc->args[0] - PMIC_GPIO_PHYSICAL_OFFSET;
+}
+
+static void pmic_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip)
+{
+	struct pmic_gpio_state *state = gpiochip_get_data(chip);
+	unsigned i;
+
+	for (i = 0; i < chip->ngpio; i++) {
+		pmic_gpio_config_dbg_show(state->ctrl, s, i);
+		seq_puts(s, "\n");
+	}
+}
+
+static const struct gpio_chip pmic_gpio_gpio_template = {
+	.direction_input	= pmic_gpio_direction_input,
+	.direction_output	= pmic_gpio_direction_output,
+	.get			= pmic_gpio_get,
+	.set			= pmic_gpio_set,
+	.request		= gpiochip_generic_request,
+	.free			= gpiochip_generic_free,
+	.of_xlate		= pmic_gpio_of_xlate,
+	.dbg_show		= pmic_gpio_dbg_show,
+};
+
+static int pmic_gpio_populate(struct pmic_gpio_state *state,
+			      struct pmic_gpio_pad *pad)
+{
+	int type, subtype, val, dir;
+
+	type = pmic_gpio_read(state, pad, PMIC_GPIO_REG_TYPE);
+	if (type < 0)
+		return type;
+
+	if (type != PMIC_GPIO_TYPE) {
+		dev_err(state->dev, "incorrect block type 0x%x at 0x%x\n",
+			type, pad->base);
+		return -ENODEV;
+	}
+
+	subtype = pmic_gpio_read(state, pad, PMIC_GPIO_REG_SUBTYPE);
+	if (subtype < 0)
+		return subtype;
+
+	switch (subtype) {
+	case PMIC_GPIO_SUBTYPE_GPIO_4CH:
+		pad->have_buffer = true;
+		fallthrough;
+	case PMIC_GPIO_SUBTYPE_GPIOC_4CH:
+		pad->num_sources = 4;
+		break;
+	case PMIC_GPIO_SUBTYPE_GPIO_8CH:
+		pad->have_buffer = true;
+		fallthrough;
+	case PMIC_GPIO_SUBTYPE_GPIOC_8CH:
+		pad->num_sources = 8;
+		break;
+	case PMIC_GPIO_SUBTYPE_GPIO_LV:
+		pad->num_sources = 1;
+		pad->have_buffer = true;
+		pad->lv_mv_type = true;
+		break;
+	case PMIC_GPIO_SUBTYPE_GPIO_MV:
+		pad->num_sources = 2;
+		pad->have_buffer = true;
+		pad->lv_mv_type = true;
+		break;
+	case PMIC_GPIO_SUBTYPE_GPIO_LV_VIN2:
+		pad->num_sources = 2;
+		pad->have_buffer = true;
+		pad->lv_mv_type = true;
+		break;
+	case PMIC_GPIO_SUBTYPE_GPIO_MV_VIN3:
+		pad->num_sources = 3;
+		pad->have_buffer = true;
+		pad->lv_mv_type = true;
+		break;
+	default:
+		dev_err(state->dev, "unknown GPIO type 0x%x\n", subtype);
+		return -ENODEV;
+	}
+
+	if (pad->lv_mv_type) {
+		val = pmic_gpio_read(state, pad,
+				PMIC_GPIO_REG_LV_MV_DIG_OUT_SOURCE_CTL);
+		if (val < 0)
+			return val;
+
+		pad->out_value = !!(val & PMIC_GPIO_LV_MV_OUTPUT_INVERT);
+		pad->function = val & PMIC_GPIO_LV_MV_OUTPUT_SOURCE_SEL_MASK;
+
+		val = pmic_gpio_read(state, pad, PMIC_GPIO_REG_MODE_CTL);
+		if (val < 0)
+			return val;
+
+		dir = val & PMIC_GPIO_REG_LV_MV_MODE_DIR_MASK;
+	} else {
+		val = pmic_gpio_read(state, pad, PMIC_GPIO_REG_MODE_CTL);
+		if (val < 0)
+			return val;
+
+		pad->out_value = val & PMIC_GPIO_REG_MODE_VALUE_SHIFT;
+
+		dir = val >> PMIC_GPIO_REG_MODE_DIR_SHIFT;
+		dir &= PMIC_GPIO_REG_MODE_DIR_MASK;
+		pad->function = val >> PMIC_GPIO_REG_MODE_FUNCTION_SHIFT;
+		pad->function &= PMIC_GPIO_REG_MODE_FUNCTION_MASK;
+	}
+
+	switch (dir) {
+	case PMIC_GPIO_MODE_DIGITAL_INPUT:
+		pad->input_enabled = true;
+		pad->output_enabled = false;
+		break;
+	case PMIC_GPIO_MODE_DIGITAL_OUTPUT:
+		pad->input_enabled = false;
+		pad->output_enabled = true;
+		break;
+	case PMIC_GPIO_MODE_DIGITAL_INPUT_OUTPUT:
+		pad->input_enabled = true;
+		pad->output_enabled = true;
+		break;
+	case PMIC_GPIO_MODE_ANALOG_PASS_THRU:
+		if (!pad->lv_mv_type)
+			return -ENODEV;
+		pad->analog_pass = true;
+		break;
+	default:
+		dev_err(state->dev, "unknown GPIO direction\n");
+		return -ENODEV;
+	}
+
+	val = pmic_gpio_read(state, pad, PMIC_GPIO_REG_DIG_VIN_CTL);
+	if (val < 0)
+		return val;
+
+	pad->power_source = val >> PMIC_GPIO_REG_VIN_SHIFT;
+	pad->power_source &= PMIC_GPIO_REG_VIN_MASK;
+
+	val = pmic_gpio_read(state, pad, PMIC_GPIO_REG_DIG_PULL_CTL);
+	if (val < 0)
+		return val;
+
+	pad->pullup = val >> PMIC_GPIO_REG_PULL_SHIFT;
+	pad->pullup &= PMIC_GPIO_REG_PULL_MASK;
+
+	val = pmic_gpio_read(state, pad, PMIC_GPIO_REG_DIG_IN_CTL);
+	if (val < 0)
+		return val;
+
+	if (pad->lv_mv_type && (val & PMIC_GPIO_LV_MV_DIG_IN_DTEST_EN))
+		pad->dtest_buffer =
+			(val & PMIC_GPIO_LV_MV_DIG_IN_DTEST_SEL_MASK) + 1;
+	else if (!pad->lv_mv_type)
+		pad->dtest_buffer = ffs(val);
+	else
+		pad->dtest_buffer = 0;
+
+	val = pmic_gpio_read(state, pad, PMIC_GPIO_REG_DIG_OUT_CTL);
+	if (val < 0)
+		return val;
+
+	pad->strength = val >> PMIC_GPIO_REG_OUT_STRENGTH_SHIFT;
+	pad->strength &= PMIC_GPIO_REG_OUT_STRENGTH_MASK;
+
+	pad->buffer_type = val >> PMIC_GPIO_REG_OUT_TYPE_SHIFT;
+	pad->buffer_type &= PMIC_GPIO_REG_OUT_TYPE_MASK;
+
+	if (pad->lv_mv_type) {
+		val = pmic_gpio_read(state, pad,
+				PMIC_GPIO_REG_LV_MV_ANA_PASS_THRU_SEL);
+		if (val < 0)
+			return val;
+		pad->atest = (val & PMIC_GPIO_LV_MV_ANA_MUX_SEL_MASK) + 1;
+	}
+
+	/* Pin could be disabled with PIN_CONFIG_BIAS_HIGH_IMPEDANCE */
+	pad->is_enabled = true;
+	return 0;
+}
+
+static int pmic_gpio_domain_translate(struct irq_domain *domain,
+				      struct irq_fwspec *fwspec,
+				      unsigned long *hwirq,
+				      unsigned int *type)
+{
+	struct pmic_gpio_state *state = container_of(domain->host_data,
+						     struct pmic_gpio_state,
+						     chip);
+
+	if (fwspec->param_count != 2 ||
+	    fwspec->param[0] < 1 || fwspec->param[0] > state->chip.ngpio)
+		return -EINVAL;
+
+	*hwirq = fwspec->param[0] - PMIC_GPIO_PHYSICAL_OFFSET;
+	*type = fwspec->param[1];
+
+	return 0;
+}
+
+static unsigned int pmic_gpio_child_offset_to_irq(struct gpio_chip *chip,
+						  unsigned int offset)
+{
+	return offset + PMIC_GPIO_PHYSICAL_OFFSET;
+}
+
+static int pmic_gpio_child_to_parent_hwirq(struct gpio_chip *chip,
+					   unsigned int child_hwirq,
+					   unsigned int child_type,
+					   unsigned int *parent_hwirq,
+					   unsigned int *parent_type)
+{
+	struct pmic_gpio_state *state = gpiochip_get_data(chip);
+
+	*parent_hwirq = child_hwirq + state->pid_base;
+	*parent_type = child_type;
+
+	return 0;
+}
+
+static int pmic_gpio_populate_parent_fwspec(struct gpio_chip *chip,
+					    union gpio_irq_fwspec *gfwspec,
+					    unsigned int parent_hwirq,
+					    unsigned int parent_type)
+{
+	struct pmic_gpio_state *state = gpiochip_get_data(chip);
+	struct irq_fwspec *fwspec = &gfwspec->fwspec;
+
+	fwspec->fwnode = chip->irq.parent_domain->fwnode;
+
+	fwspec->param_count = 4;
+	fwspec->param[0] = state->usid;
+	fwspec->param[1] = parent_hwirq;
+	/* param[2] must be left as 0 */
+	fwspec->param[3] = parent_type;
+
+	return 0;
+}
+
+static void pmic_gpio_irq_mask(struct irq_data *data)
+{
+	struct gpio_chip *gc = irq_data_get_irq_chip_data(data);
+
+	irq_chip_mask_parent(data);
+	gpiochip_disable_irq(gc, data->hwirq);
+}
+
+static void pmic_gpio_irq_unmask(struct irq_data *data)
+{
+	struct gpio_chip *gc = irq_data_get_irq_chip_data(data);
+
+	gpiochip_enable_irq(gc, data->hwirq);
+	irq_chip_unmask_parent(data);
+}
+
+static const struct irq_chip spmi_gpio_irq_chip = {
+	.name		= "spmi-gpio",
+	.irq_ack	= irq_chip_ack_parent,
+	.irq_mask	= pmic_gpio_irq_mask,
+	.irq_unmask	= pmic_gpio_irq_unmask,
+	.irq_set_type	= irq_chip_set_type_parent,
+	.irq_set_wake	= irq_chip_set_wake_parent,
+	.flags		= IRQCHIP_IMMUTABLE | IRQCHIP_MASK_ON_SUSPEND,
+	GPIOCHIP_IRQ_RESOURCE_HELPERS,
+};
+
+static int pmic_gpio_probe(struct platform_device *pdev)
+{
+	struct irq_domain *parent_domain;
+	struct device_node *parent_node;
+	struct device *dev = &pdev->dev;
+	struct pinctrl_pin_desc *pindesc;
+	struct pinctrl_desc *pctrldesc;
+	struct pmic_gpio_pad *pad, *pads;
+	struct pmic_gpio_state *state;
+	struct gpio_irq_chip *girq;
+	const struct spmi_device *parent_spmi_dev;
+	int ret, npins, i;
+	u32 reg;
+
+	ret = of_property_read_u32(dev->of_node, "reg", &reg);
+	if (ret < 0) {
+		dev_err(dev, "missing base address");
+		return ret;
+	}
+
+	npins = (uintptr_t) device_get_match_data(&pdev->dev);
+
+	state = devm_kzalloc(dev, sizeof(*state), GFP_KERNEL);
+	if (!state)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, state);
+
+	state->dev = &pdev->dev;
+	state->map = dev_get_regmap(dev->parent, NULL);
+	parent_spmi_dev = to_spmi_device(dev->parent);
+	state->usid = parent_spmi_dev->usid;
+	state->pid_base = reg >> 8;
+
+	pindesc = devm_kcalloc(dev, npins, sizeof(*pindesc), GFP_KERNEL);
+	if (!pindesc)
+		return -ENOMEM;
+
+	pads = devm_kcalloc(dev, npins, sizeof(*pads), GFP_KERNEL);
+	if (!pads)
+		return -ENOMEM;
+
+	pctrldesc = devm_kzalloc(dev, sizeof(*pctrldesc), GFP_KERNEL);
+	if (!pctrldesc)
+		return -ENOMEM;
+
+	pctrldesc->pctlops = &pmic_gpio_pinctrl_ops;
+	pctrldesc->pmxops = &pmic_gpio_pinmux_ops;
+	pctrldesc->confops = &pmic_gpio_pinconf_ops;
+	pctrldesc->owner = THIS_MODULE;
+	pctrldesc->name = dev_name(dev);
+	pctrldesc->pins = pindesc;
+	pctrldesc->npins = npins;
+	pctrldesc->num_custom_params = ARRAY_SIZE(pmic_gpio_bindings);
+	pctrldesc->custom_params = pmic_gpio_bindings;
+#ifdef CONFIG_DEBUG_FS
+	pctrldesc->custom_conf_items = pmic_conf_items;
+#endif
+
+	for (i = 0; i < npins; i++, pindesc++) {
+		pad = &pads[i];
+		pindesc->drv_data = pad;
+		pindesc->number = i;
+		pindesc->name = pmic_gpio_groups[i];
+
+		pad->base = reg + i * PMIC_GPIO_ADDRESS_RANGE;
+
+		ret = pmic_gpio_populate(state, pad);
+		if (ret < 0)
+			return ret;
+	}
+
+	state->chip = pmic_gpio_gpio_template;
+	state->chip.parent = dev;
+	state->chip.base = -1;
+	state->chip.ngpio = npins;
+	state->chip.label = dev_name(dev);
+	state->chip.of_gpio_n_cells = 2;
+	state->chip.can_sleep = false;
+
+	state->ctrl = devm_pinctrl_register(dev, pctrldesc, state);
+	if (IS_ERR(state->ctrl))
+		return PTR_ERR(state->ctrl);
+
+	parent_node = of_irq_find_parent(state->dev->of_node);
+	if (!parent_node)
+		return -ENXIO;
+
+	parent_domain = irq_find_host(parent_node);
+	of_node_put(parent_node);
+	if (!parent_domain)
+		return -ENXIO;
+
+	girq = &state->chip.irq;
+	gpio_irq_chip_set_chip(girq, &spmi_gpio_irq_chip);
+	girq->default_type = IRQ_TYPE_NONE;
+	girq->handler = handle_level_irq;
+	girq->fwnode = of_node_to_fwnode(state->dev->of_node);
+	girq->parent_domain = parent_domain;
+	girq->child_to_parent_hwirq = pmic_gpio_child_to_parent_hwirq;
+	girq->populate_parent_alloc_arg = pmic_gpio_populate_parent_fwspec;
+	girq->child_offset_to_irq = pmic_gpio_child_offset_to_irq;
+	girq->child_irq_domain_ops.translate = pmic_gpio_domain_translate;
+
+	ret = gpiochip_add_data(&state->chip, state);
+	if (ret) {
+		dev_err(state->dev, "can't add gpio chip\n");
+		return ret;
+	}
+
+	/*
+	 * For DeviceTree-supported systems, the gpio core checks the
+	 * pinctrl's device node for the "gpio-ranges" property.
+	 * If it is present, it takes care of adding the pin ranges
+	 * for the driver. In this case the driver can skip ahead.
+	 *
+	 * In order to remain compatible with older, existing DeviceTree
+	 * files which don't set the "gpio-ranges" property or systems that
+	 * utilize ACPI the driver has to call gpiochip_add_pin_range().
+	 */
+	if (!of_property_read_bool(dev->of_node, "gpio-ranges")) {
+		ret = gpiochip_add_pin_range(&state->chip, dev_name(dev), 0, 0,
+					     npins);
+		if (ret) {
+			dev_err(dev, "failed to add pin range\n");
+			goto err_range;
+		}
+	}
+
+	return 0;
+
+err_range:
+	gpiochip_remove(&state->chip);
+	return ret;
+}
+
+static int pmic_gpio_remove(struct platform_device *pdev)
+{
+	struct pmic_gpio_state *state = platform_get_drvdata(pdev);
+
+	gpiochip_remove(&state->chip);
+	return 0;
+}
+
+static const struct of_device_id pmic_gpio_of_match[] = {
+	{ .compatible = "qcom,pm2250-gpio", .data = (void *) 10 },
+	/* pm660 has 13 GPIOs with holes on 1, 5, 6, 7, 8 and 10 */
+	{ .compatible = "qcom,pm660-gpio", .data = (void *) 13 },
+	/* pm660l has 12 GPIOs with holes on 1, 2, 10, 11 and 12 */
+	{ .compatible = "qcom,pm660l-gpio", .data = (void *) 12 },
+	{ .compatible = "qcom,pm6125-gpio", .data = (void *) 9 },
+	{ .compatible = "qcom,pm6150-gpio", .data = (void *) 10 },
+	{ .compatible = "qcom,pm6150l-gpio", .data = (void *) 12 },
+	{ .compatible = "qcom,pm6350-gpio", .data = (void *) 9 },
+	{ .compatible = "qcom,pm7250b-gpio", .data = (void *) 12 },
+	{ .compatible = "qcom,pm7325-gpio", .data = (void *) 10 },
+	{ .compatible = "qcom,pm8005-gpio", .data = (void *) 4 },
+	{ .compatible = "qcom,pm8008-gpio", .data = (void *) 2 },
+	{ .compatible = "qcom,pm8019-gpio", .data = (void *) 6 },
+	/* pm8150 has 10 GPIOs with holes on 2, 5, 7 and 8 */
+	{ .compatible = "qcom,pm8150-gpio", .data = (void *) 10 },
+	{ .compatible = "qcom,pmc8180-gpio", .data = (void *) 10 },
+	/* pm8150b has 12 GPIOs with holes on 3, r and 7 */
+	{ .compatible = "qcom,pm8150b-gpio", .data = (void *) 12 },
+	/* pm8150l has 12 GPIOs with holes on 7 */
+	{ .compatible = "qcom,pm8150l-gpio", .data = (void *) 12 },
+	{ .compatible = "qcom,pmc8180c-gpio", .data = (void *) 12 },
+	{ .compatible = "qcom,pm8226-gpio", .data = (void *) 8 },
+	{ .compatible = "qcom,pm8350-gpio", .data = (void *) 10 },
+	{ .compatible = "qcom,pm8350b-gpio", .data = (void *) 8 },
+	{ .compatible = "qcom,pm8350c-gpio", .data = (void *) 9 },
+	{ .compatible = "qcom,pm8450-gpio", .data = (void *) 4 },
+	{ .compatible = "qcom,pm8916-gpio", .data = (void *) 4 },
+	{ .compatible = "qcom,pm8941-gpio", .data = (void *) 36 },
+	/* pm8950 has 8 GPIOs with holes on 3 */
+	{ .compatible = "qcom,pm8950-gpio", .data = (void *) 8 },
+	{ .compatible = "qcom,pm8994-gpio", .data = (void *) 22 },
+	{ .compatible = "qcom,pm8998-gpio", .data = (void *) 26 },
+	{ .compatible = "qcom,pma8084-gpio", .data = (void *) 22 },
+	{ .compatible = "qcom,pmi8950-gpio", .data = (void *) 2 },
+	{ .compatible = "qcom,pmi8994-gpio", .data = (void *) 10 },
+	{ .compatible = "qcom,pmi8998-gpio", .data = (void *) 14 },
+	{ .compatible = "qcom,pmk8350-gpio", .data = (void *) 4 },
+	{ .compatible = "qcom,pmm8155au-gpio", .data = (void *) 10 },
+	/* pmp8074 has 12 GPIOs with holes on 1 and 12 */
+	{ .compatible = "qcom,pmp8074-gpio", .data = (void *) 12 },
+	{ .compatible = "qcom,pmr735a-gpio", .data = (void *) 4 },
+	{ .compatible = "qcom,pmr735b-gpio", .data = (void *) 4 },
+	/* pms405 has 12 GPIOs with holes on 1, 9, and 10 */
+	{ .compatible = "qcom,pms405-gpio", .data = (void *) 12 },
+	/* pmx55 has 11 GPIOs with holes on 3, 7, 10, 11 */
+	{ .compatible = "qcom,pmx55-gpio", .data = (void *) 11 },
+	{ .compatible = "qcom,pmx65-gpio", .data = (void *) 16 },
+	{ },
+};
+
+MODULE_DEVICE_TABLE(of, pmic_gpio_of_match);
+
+static struct platform_driver pmic_gpio_driver = {
+	.driver = {
+		   .name = "qcom-spmi-gpio",
+		   .of_match_table = pmic_gpio_of_match,
+	},
+	.probe	= pmic_gpio_probe,
+	.remove = pmic_gpio_remove,
+};
+
+module_platform_driver(pmic_gpio_driver);
+
+MODULE_AUTHOR("Ivan T. Ivanov <iivanov@mm-sol.com>");
+MODULE_DESCRIPTION("Qualcomm SPMI PMIC GPIO pin control driver");
+MODULE_ALIAS("platform:qcom-spmi-gpio");
+MODULE_LICENSE("GPL v2");