1 files changed, 0 insertions, 894 deletions

diff --git a/drivers/pinctrl/sirf/pinctrl-sirf.c b/drivers/pinctrl/sirf/pinctrl-sirf.c
deleted file mode 100644
index 63a287d5795f..000000000000
--- a/drivers/pinctrl/sirf/pinctrl-sirf.c
+++ /dev/null
@@ -1,894 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * pinmux driver for CSR SiRFprimaII
- *
- * Authors:
- *	Rongjun Ying <rongjun.ying@csr.com>
- *	Yuping Luo <yuping.luo@csr.com>
- *	Barry Song <baohua.song@csr.com>
- *
- * Copyright (c) 2011 - 2014 Cambridge Silicon Radio Limited, a CSR plc group
- * company.
- */
-
-#include <linux/init.h>
-#include <linux/irq.h>
-#include <linux/platform_device.h>
-#include <linux/io.h>
-#include <linux/slab.h>
-#include <linux/err.h>
-#include <linux/pinctrl/pinctrl.h>
-#include <linux/pinctrl/pinmux.h>
-#include <linux/pinctrl/consumer.h>
-#include <linux/pinctrl/machine.h>
-#include <linux/of.h>
-#include <linux/of_address.h>
-#include <linux/of_device.h>
-#include <linux/of_platform.h>
-#include <linux/bitops.h>
-#include <linux/gpio/driver.h>
-#include <linux/of_gpio.h>
-
-#include "pinctrl-sirf.h"
-
-#define DRIVER_NAME "pinmux-sirf"
-
-struct sirfsoc_gpio_bank {
-	int id;
-	int parent_irq;
-	spinlock_t lock;
-};
-
-struct sirfsoc_gpio_chip {
-	struct of_mm_gpio_chip chip;
-	struct sirfsoc_gpio_bank sgpio_bank[SIRFSOC_GPIO_NO_OF_BANKS];
-	spinlock_t lock;
-};
-
-static struct sirfsoc_pin_group *sirfsoc_pin_groups;
-static int sirfsoc_pingrp_cnt;
-
-static int sirfsoc_get_groups_count(struct pinctrl_dev *pctldev)
-{
-	return sirfsoc_pingrp_cnt;
-}
-
-static const char *sirfsoc_get_group_name(struct pinctrl_dev *pctldev,
-				       unsigned selector)
-{
-	return sirfsoc_pin_groups[selector].name;
-}
-
-static int sirfsoc_get_group_pins(struct pinctrl_dev *pctldev,
-				unsigned selector,
-				const unsigned **pins,
-				unsigned *num_pins)
-{
-	*pins = sirfsoc_pin_groups[selector].pins;
-	*num_pins = sirfsoc_pin_groups[selector].num_pins;
-	return 0;
-}
-
-static void sirfsoc_pin_dbg_show(struct pinctrl_dev *pctldev,
-				struct seq_file *s, unsigned offset)
-{
-	seq_printf(s, " " DRIVER_NAME);
-}
-
-static int sirfsoc_dt_node_to_map(struct pinctrl_dev *pctldev,
-				 struct device_node *np_config,
-				 struct pinctrl_map **map, unsigned *num_maps)
-{
-	struct sirfsoc_pmx *spmx = pinctrl_dev_get_drvdata(pctldev);
-	struct device_node *np;
-	struct property *prop;
-	const char *function, *group;
-	int ret, index = 0, count = 0;
-
-	/* calculate number of maps required */
-	for_each_child_of_node(np_config, np) {
-		ret = of_property_read_string(np, "sirf,function", &function);
-		if (ret < 0) {
-			of_node_put(np);
-			return ret;
-		}
-
-		ret = of_property_count_strings(np, "sirf,pins");
-		if (ret < 0) {
-			of_node_put(np);
-			return ret;
-		}
-
-		count += ret;
-	}
-
-	if (!count) {
-		dev_err(spmx->dev, "No child nodes passed via DT\n");
-		return -ENODEV;
-	}
-
-	*map = kcalloc(count, sizeof(**map), GFP_KERNEL);
-	if (!*map)
-		return -ENOMEM;
-
-	for_each_child_of_node(np_config, np) {
-		of_property_read_string(np, "sirf,function", &function);
-		of_property_for_each_string(np, "sirf,pins", prop, group) {
-			(*map)[index].type = PIN_MAP_TYPE_MUX_GROUP;
-			(*map)[index].data.mux.group = group;
-			(*map)[index].data.mux.function = function;
-			index++;
-		}
-	}
-
-	*num_maps = count;
-
-	return 0;
-}
-
-static void sirfsoc_dt_free_map(struct pinctrl_dev *pctldev,
-		struct pinctrl_map *map, unsigned num_maps)
-{
-	kfree(map);
-}
-
-static const struct pinctrl_ops sirfsoc_pctrl_ops = {
-	.get_groups_count = sirfsoc_get_groups_count,
-	.get_group_name = sirfsoc_get_group_name,
-	.get_group_pins = sirfsoc_get_group_pins,
-	.pin_dbg_show = sirfsoc_pin_dbg_show,
-	.dt_node_to_map = sirfsoc_dt_node_to_map,
-	.dt_free_map = sirfsoc_dt_free_map,
-};
-
-static struct sirfsoc_pmx_func *sirfsoc_pmx_functions;
-static int sirfsoc_pmxfunc_cnt;
-
-static void sirfsoc_pinmux_endisable(struct sirfsoc_pmx *spmx,
-					unsigned selector, bool enable)
-{
-	int i;
-	const struct sirfsoc_padmux *mux =
-		sirfsoc_pmx_functions[selector].padmux;
-	const struct sirfsoc_muxmask *mask = mux->muxmask;
-
-	for (i = 0; i < mux->muxmask_counts; i++) {
-		u32 muxval;
-		muxval = readl(spmx->gpio_virtbase +
-			SIRFSOC_GPIO_PAD_EN(mask[i].group));
-		if (enable)
-			muxval = muxval & ~mask[i].mask;
-		else
-			muxval = muxval | mask[i].mask;
-		writel(muxval, spmx->gpio_virtbase +
-			SIRFSOC_GPIO_PAD_EN(mask[i].group));
-	}
-
-	if (mux->funcmask && enable) {
-		u32 func_en_val;
-
-		func_en_val =
-			readl(spmx->rsc_virtbase + mux->ctrlreg);
-		func_en_val =
-			(func_en_val & ~mux->funcmask) | (mux->funcval);
-		writel(func_en_val, spmx->rsc_virtbase + mux->ctrlreg);
-	}
-}
-
-static int sirfsoc_pinmux_set_mux(struct pinctrl_dev *pmxdev,
-				unsigned selector,
-				unsigned group)
-{
-	struct sirfsoc_pmx *spmx;
-
-	spmx = pinctrl_dev_get_drvdata(pmxdev);
-	sirfsoc_pinmux_endisable(spmx, selector, true);
-
-	return 0;
-}
-
-static int sirfsoc_pinmux_get_funcs_count(struct pinctrl_dev *pmxdev)
-{
-	return sirfsoc_pmxfunc_cnt;
-}
-
-static const char *sirfsoc_pinmux_get_func_name(struct pinctrl_dev *pctldev,
-					  unsigned selector)
-{
-	return sirfsoc_pmx_functions[selector].name;
-}
-
-static int sirfsoc_pinmux_get_groups(struct pinctrl_dev *pctldev,
-				unsigned selector,
-				const char * const **groups,
-				unsigned * const num_groups)
-{
-	*groups = sirfsoc_pmx_functions[selector].groups;
-	*num_groups = sirfsoc_pmx_functions[selector].num_groups;
-	return 0;
-}
-
-static int sirfsoc_pinmux_request_gpio(struct pinctrl_dev *pmxdev,
-	struct pinctrl_gpio_range *range, unsigned offset)
-{
-	struct sirfsoc_pmx *spmx;
-
-	int group = range->id;
-
-	u32 muxval;
-
-	spmx = pinctrl_dev_get_drvdata(pmxdev);
-
-	muxval = readl(spmx->gpio_virtbase +
-		SIRFSOC_GPIO_PAD_EN(group));
-	muxval = muxval | (1 << (offset - range->pin_base));
-	writel(muxval, spmx->gpio_virtbase +
-		SIRFSOC_GPIO_PAD_EN(group));
-
-	return 0;
-}
-
-static const struct pinmux_ops sirfsoc_pinmux_ops = {
-	.set_mux = sirfsoc_pinmux_set_mux,
-	.get_functions_count = sirfsoc_pinmux_get_funcs_count,
-	.get_function_name = sirfsoc_pinmux_get_func_name,
-	.get_function_groups = sirfsoc_pinmux_get_groups,
-	.gpio_request_enable = sirfsoc_pinmux_request_gpio,
-};
-
-static struct pinctrl_desc sirfsoc_pinmux_desc = {
-	.name = DRIVER_NAME,
-	.pctlops = &sirfsoc_pctrl_ops,
-	.pmxops = &sirfsoc_pinmux_ops,
-	.owner = THIS_MODULE,
-};
-
-static void __iomem *sirfsoc_rsc_of_iomap(void)
-{
-	const struct of_device_id rsc_ids[]  = {
-		{ .compatible = "sirf,prima2-rsc" },
-		{}
-	};
-	struct device_node *np;
-
-	np = of_find_matching_node(NULL, rsc_ids);
-	if (!np)
-		panic("unable to find compatible rsc node in dtb\n");
-
-	return of_iomap(np, 0);
-}
-
-static int sirfsoc_gpio_of_xlate(struct gpio_chip *gc,
-	const struct of_phandle_args *gpiospec,
-	u32 *flags)
-{
-	if (gpiospec->args[0] > SIRFSOC_GPIO_NO_OF_BANKS * SIRFSOC_GPIO_BANK_SIZE)
-		return -EINVAL;
-
-	if (flags)
-		*flags = gpiospec->args[1];
-
-	return gpiospec->args[0];
-}
-
-static const struct of_device_id pinmux_ids[] = {
-	{ .compatible = "sirf,prima2-pinctrl", .data = &prima2_pinctrl_data, },
-	{ .compatible = "sirf,atlas6-pinctrl", .data = &atlas6_pinctrl_data, },
-	{}
-};
-
-static int sirfsoc_pinmux_probe(struct platform_device *pdev)
-{
-	int ret;
-	struct sirfsoc_pmx *spmx;
-	struct device_node *np = pdev->dev.of_node;
-	const struct sirfsoc_pinctrl_data *pdata;
-
-	/* Create state holders etc for this driver */
-	spmx = devm_kzalloc(&pdev->dev, sizeof(*spmx), GFP_KERNEL);
-	if (!spmx)
-		return -ENOMEM;
-
-	spmx->dev = &pdev->dev;
-
-	platform_set_drvdata(pdev, spmx);
-
-	spmx->gpio_virtbase = of_iomap(np, 0);
-	if (!spmx->gpio_virtbase) {
-		dev_err(&pdev->dev, "can't map gpio registers\n");
-		return -ENOMEM;
-	}
-
-	spmx->rsc_virtbase = sirfsoc_rsc_of_iomap();
-	if (!spmx->rsc_virtbase) {
-		ret = -ENOMEM;
-		dev_err(&pdev->dev, "can't map rsc registers\n");
-		goto out_no_rsc_remap;
-	}
-
-	pdata = of_match_node(pinmux_ids, np)->data;
-	sirfsoc_pin_groups = pdata->grps;
-	sirfsoc_pingrp_cnt = pdata->grps_cnt;
-	sirfsoc_pmx_functions = pdata->funcs;
-	sirfsoc_pmxfunc_cnt = pdata->funcs_cnt;
-	sirfsoc_pinmux_desc.pins = pdata->pads;
-	sirfsoc_pinmux_desc.npins = pdata->pads_cnt;
-
-
-	/* Now register the pin controller and all pins it handles */
-	spmx->pmx = pinctrl_register(&sirfsoc_pinmux_desc, &pdev->dev, spmx);
-	if (IS_ERR(spmx->pmx)) {
-		dev_err(&pdev->dev, "could not register SIRFSOC pinmux driver\n");
-		ret = PTR_ERR(spmx->pmx);
-		goto out_no_pmx;
-	}
-
-	dev_info(&pdev->dev, "initialized SIRFSOC pinmux driver\n");
-
-	return 0;
-
-out_no_pmx:
-	iounmap(spmx->rsc_virtbase);
-out_no_rsc_remap:
-	iounmap(spmx->gpio_virtbase);
-	return ret;
-}
-
-#ifdef CONFIG_PM_SLEEP
-static int sirfsoc_pinmux_suspend_noirq(struct device *dev)
-{
-	int i, j;
-	struct sirfsoc_pmx *spmx = dev_get_drvdata(dev);
-
-	for (i = 0; i < SIRFSOC_GPIO_NO_OF_BANKS; i++) {
-		for (j = 0; j < SIRFSOC_GPIO_BANK_SIZE; j++) {
-			spmx->gpio_regs[i][j] = readl(spmx->gpio_virtbase +
-				SIRFSOC_GPIO_CTRL(i, j));
-		}
-		spmx->ints_regs[i] = readl(spmx->gpio_virtbase +
-			SIRFSOC_GPIO_INT_STATUS(i));
-		spmx->paden_regs[i] = readl(spmx->gpio_virtbase +
-			SIRFSOC_GPIO_PAD_EN(i));
-	}
-	spmx->dspen_regs = readl(spmx->gpio_virtbase + SIRFSOC_GPIO_DSP_EN0);
-
-	for (i = 0; i < 3; i++)
-		spmx->rsc_regs[i] = readl(spmx->rsc_virtbase + 4 * i);
-
-	return 0;
-}
-
-static int sirfsoc_pinmux_resume_noirq(struct device *dev)
-{
-	int i, j;
-	struct sirfsoc_pmx *spmx = dev_get_drvdata(dev);
-
-	for (i = 0; i < SIRFSOC_GPIO_NO_OF_BANKS; i++) {
-		for (j = 0; j < SIRFSOC_GPIO_BANK_SIZE; j++) {
-			writel(spmx->gpio_regs[i][j], spmx->gpio_virtbase +
-				SIRFSOC_GPIO_CTRL(i, j));
-		}
-		writel(spmx->ints_regs[i], spmx->gpio_virtbase +
-			SIRFSOC_GPIO_INT_STATUS(i));
-		writel(spmx->paden_regs[i], spmx->gpio_virtbase +
-			SIRFSOC_GPIO_PAD_EN(i));
-	}
-	writel(spmx->dspen_regs, spmx->gpio_virtbase + SIRFSOC_GPIO_DSP_EN0);
-
-	for (i = 0; i < 3; i++)
-		writel(spmx->rsc_regs[i], spmx->rsc_virtbase + 4 * i);
-
-	return 0;
-}
-
-static const struct dev_pm_ops sirfsoc_pinmux_pm_ops = {
-	.suspend_noirq = sirfsoc_pinmux_suspend_noirq,
-	.resume_noirq = sirfsoc_pinmux_resume_noirq,
-	.freeze_noirq = sirfsoc_pinmux_suspend_noirq,
-	.restore_noirq = sirfsoc_pinmux_resume_noirq,
-};
-#endif
-
-static struct platform_driver sirfsoc_pinmux_driver = {
-	.driver = {
-		.name = DRIVER_NAME,
-		.of_match_table = pinmux_ids,
-#ifdef CONFIG_PM_SLEEP
-		.pm = &sirfsoc_pinmux_pm_ops,
-#endif
-	},
-	.probe = sirfsoc_pinmux_probe,
-};
-
-static int __init sirfsoc_pinmux_init(void)
-{
-	return platform_driver_register(&sirfsoc_pinmux_driver);
-}
-arch_initcall(sirfsoc_pinmux_init);
-
-static inline struct sirfsoc_gpio_bank *
-sirfsoc_gpio_to_bank(struct sirfsoc_gpio_chip *sgpio, unsigned int offset)
-{
-	return &sgpio->sgpio_bank[offset / SIRFSOC_GPIO_BANK_SIZE];
-}
-
-static inline int sirfsoc_gpio_to_bankoff(unsigned int offset)
-{
-	return offset % SIRFSOC_GPIO_BANK_SIZE;
-}
-
-static void sirfsoc_gpio_irq_ack(struct irq_data *d)
-{
-	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
-	struct sirfsoc_gpio_chip *sgpio = gpiochip_get_data(gc);
-	struct sirfsoc_gpio_bank *bank = sirfsoc_gpio_to_bank(sgpio, d->hwirq);
-	int idx = sirfsoc_gpio_to_bankoff(d->hwirq);
-	u32 val, offset;
-	unsigned long flags;
-
-	offset = SIRFSOC_GPIO_CTRL(bank->id, idx);
-
-	spin_lock_irqsave(&sgpio->lock, flags);
-
-	val = readl(sgpio->chip.regs + offset);
-
-	writel(val, sgpio->chip.regs + offset);
-
-	spin_unlock_irqrestore(&sgpio->lock, flags);
-}
-
-static void __sirfsoc_gpio_irq_mask(struct sirfsoc_gpio_chip *sgpio,
-				    struct sirfsoc_gpio_bank *bank,
-				    int idx)
-{
-	u32 val, offset;
-	unsigned long flags;
-
-	offset = SIRFSOC_GPIO_CTRL(bank->id, idx);
-
-	spin_lock_irqsave(&sgpio->lock, flags);
-
-	val = readl(sgpio->chip.regs + offset);
-	val &= ~SIRFSOC_GPIO_CTL_INTR_EN_MASK;
-	val &= ~SIRFSOC_GPIO_CTL_INTR_STS_MASK;
-	writel(val, sgpio->chip.regs + offset);
-
-	spin_unlock_irqrestore(&sgpio->lock, flags);
-}
-
-static void sirfsoc_gpio_irq_mask(struct irq_data *d)
-{
-	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
-	struct sirfsoc_gpio_chip *sgpio = gpiochip_get_data(gc);
-	struct sirfsoc_gpio_bank *bank = sirfsoc_gpio_to_bank(sgpio, d->hwirq);
-
-	__sirfsoc_gpio_irq_mask(sgpio, bank, d->hwirq % SIRFSOC_GPIO_BANK_SIZE);
-}
-
-static void sirfsoc_gpio_irq_unmask(struct irq_data *d)
-{
-	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
-	struct sirfsoc_gpio_chip *sgpio = gpiochip_get_data(gc);
-	struct sirfsoc_gpio_bank *bank = sirfsoc_gpio_to_bank(sgpio, d->hwirq);
-	int idx = sirfsoc_gpio_to_bankoff(d->hwirq);
-	u32 val, offset;
-	unsigned long flags;
-
-	offset = SIRFSOC_GPIO_CTRL(bank->id, idx);
-
-	spin_lock_irqsave(&sgpio->lock, flags);
-
-	val = readl(sgpio->chip.regs + offset);
-	val &= ~SIRFSOC_GPIO_CTL_INTR_STS_MASK;
-	val |= SIRFSOC_GPIO_CTL_INTR_EN_MASK;
-	writel(val, sgpio->chip.regs + offset);
-
-	spin_unlock_irqrestore(&sgpio->lock, flags);
-}
-
-static int sirfsoc_gpio_irq_type(struct irq_data *d, unsigned type)
-{
-	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
-	struct sirfsoc_gpio_chip *sgpio = gpiochip_get_data(gc);
-	struct sirfsoc_gpio_bank *bank = sirfsoc_gpio_to_bank(sgpio, d->hwirq);
-	int idx = sirfsoc_gpio_to_bankoff(d->hwirq);
-	u32 val, offset;
-	unsigned long flags;
-
-	offset = SIRFSOC_GPIO_CTRL(bank->id, idx);
-
-	spin_lock_irqsave(&sgpio->lock, flags);
-
-	val = readl(sgpio->chip.regs + offset);
-	val &= ~(SIRFSOC_GPIO_CTL_INTR_STS_MASK | SIRFSOC_GPIO_CTL_OUT_EN_MASK);
-
-	switch (type) {
-	case IRQ_TYPE_NONE:
-		break;
-	case IRQ_TYPE_EDGE_RISING:
-		val |= SIRFSOC_GPIO_CTL_INTR_HIGH_MASK |
-			SIRFSOC_GPIO_CTL_INTR_TYPE_MASK;
-		val &= ~SIRFSOC_GPIO_CTL_INTR_LOW_MASK;
-		break;
-	case IRQ_TYPE_EDGE_FALLING:
-		val &= ~SIRFSOC_GPIO_CTL_INTR_HIGH_MASK;
-		val |= SIRFSOC_GPIO_CTL_INTR_LOW_MASK |
-			SIRFSOC_GPIO_CTL_INTR_TYPE_MASK;
-		break;
-	case IRQ_TYPE_EDGE_BOTH:
-		val |= SIRFSOC_GPIO_CTL_INTR_HIGH_MASK |
-			SIRFSOC_GPIO_CTL_INTR_LOW_MASK |
-			SIRFSOC_GPIO_CTL_INTR_TYPE_MASK;
-		break;
-	case IRQ_TYPE_LEVEL_LOW:
-		val &= ~(SIRFSOC_GPIO_CTL_INTR_HIGH_MASK |
-			SIRFSOC_GPIO_CTL_INTR_TYPE_MASK);
-		val |= SIRFSOC_GPIO_CTL_INTR_LOW_MASK;
-		break;
-	case IRQ_TYPE_LEVEL_HIGH:
-		val |= SIRFSOC_GPIO_CTL_INTR_HIGH_MASK;
-		val &= ~(SIRFSOC_GPIO_CTL_INTR_LOW_MASK |
-			SIRFSOC_GPIO_CTL_INTR_TYPE_MASK);
-		break;
-	}
-
-	writel(val, sgpio->chip.regs + offset);
-
-	spin_unlock_irqrestore(&sgpio->lock, flags);
-
-	return 0;
-}
-
-static struct irq_chip sirfsoc_irq_chip = {
-	.name = "sirf-gpio-irq",
-	.irq_ack = sirfsoc_gpio_irq_ack,
-	.irq_mask = sirfsoc_gpio_irq_mask,
-	.irq_unmask = sirfsoc_gpio_irq_unmask,
-	.irq_set_type = sirfsoc_gpio_irq_type,
-};
-
-static void sirfsoc_gpio_handle_irq(struct irq_desc *desc)
-{
-	unsigned int irq = irq_desc_get_irq(desc);
-	struct gpio_chip *gc = irq_desc_get_handler_data(desc);
-	struct sirfsoc_gpio_chip *sgpio = gpiochip_get_data(gc);
-	struct sirfsoc_gpio_bank *bank;
-	u32 status, ctrl;
-	int idx = 0;
-	struct irq_chip *chip = irq_desc_get_chip(desc);
-	int i;
-
-	for (i = 0; i < SIRFSOC_GPIO_NO_OF_BANKS; i++) {
-		bank = &sgpio->sgpio_bank[i];
-		if (bank->parent_irq == irq)
-			break;
-	}
-	BUG_ON(i == SIRFSOC_GPIO_NO_OF_BANKS);
-
-	chained_irq_enter(chip, desc);
-
-	status = readl(sgpio->chip.regs + SIRFSOC_GPIO_INT_STATUS(bank->id));
-	if (!status) {
-		printk(KERN_WARNING
-			"%s: gpio id %d status %#x no interrupt is flagged\n",
-			__func__, bank->id, status);
-		handle_bad_irq(desc);
-		return;
-	}
-
-	while (status) {
-		ctrl = readl(sgpio->chip.regs + SIRFSOC_GPIO_CTRL(bank->id, idx));
-
-		/*
-		 * Here we must check whether the corresponding GPIO's interrupt
-		 * has been enabled, otherwise just skip it
-		 */
-		if ((status & 0x1) && (ctrl & SIRFSOC_GPIO_CTL_INTR_EN_MASK)) {
-			pr_debug("%s: gpio id %d idx %d happens\n",
-				__func__, bank->id, idx);
-			generic_handle_irq(irq_find_mapping(gc->irq.domain, idx +
-					bank->id * SIRFSOC_GPIO_BANK_SIZE));
-		}
-
-		idx++;
-		status = status >> 1;
-	}
-
-	chained_irq_exit(chip, desc);
-}
-
-static inline void sirfsoc_gpio_set_input(struct sirfsoc_gpio_chip *sgpio,
-					  unsigned ctrl_offset)
-{
-	u32 val;
-
-	val = readl(sgpio->chip.regs + ctrl_offset);
-	val &= ~SIRFSOC_GPIO_CTL_OUT_EN_MASK;
-	writel(val, sgpio->chip.regs + ctrl_offset);
-}
-
-static int sirfsoc_gpio_request(struct gpio_chip *chip, unsigned offset)
-{
-	struct sirfsoc_gpio_chip *sgpio = gpiochip_get_data(chip);
-	struct sirfsoc_gpio_bank *bank = sirfsoc_gpio_to_bank(sgpio, offset);
-	unsigned long flags;
-
-	if (pinctrl_gpio_request(chip->base + offset))
-		return -ENODEV;
-
-	spin_lock_irqsave(&bank->lock, flags);
-
-	/*
-	 * default status:
-	 * set direction as input and mask irq
-	 */
-	sirfsoc_gpio_set_input(sgpio, SIRFSOC_GPIO_CTRL(bank->id, offset));
-	__sirfsoc_gpio_irq_mask(sgpio, bank, offset);
-
-	spin_unlock_irqrestore(&bank->lock, flags);
-
-	return 0;
-}
-
-static void sirfsoc_gpio_free(struct gpio_chip *chip, unsigned offset)
-{
-	struct sirfsoc_gpio_chip *sgpio = gpiochip_get_data(chip);
-	struct sirfsoc_gpio_bank *bank = sirfsoc_gpio_to_bank(sgpio, offset);
-	unsigned long flags;
-
-	spin_lock_irqsave(&bank->lock, flags);
-
-	__sirfsoc_gpio_irq_mask(sgpio, bank, offset);
-	sirfsoc_gpio_set_input(sgpio, SIRFSOC_GPIO_CTRL(bank->id, offset));
-
-	spin_unlock_irqrestore(&bank->lock, flags);
-
-	pinctrl_gpio_free(chip->base + offset);
-}
-
-static int sirfsoc_gpio_direction_input(struct gpio_chip *chip, unsigned gpio)
-{
-	struct sirfsoc_gpio_chip *sgpio = gpiochip_get_data(chip);
-	struct sirfsoc_gpio_bank *bank = sirfsoc_gpio_to_bank(sgpio, gpio);
-	int idx = sirfsoc_gpio_to_bankoff(gpio);
-	unsigned long flags;
-	unsigned offset;
-
-	offset = SIRFSOC_GPIO_CTRL(bank->id, idx);
-
-	spin_lock_irqsave(&bank->lock, flags);
-
-	sirfsoc_gpio_set_input(sgpio, offset);
-
-	spin_unlock_irqrestore(&bank->lock, flags);
-
-	return 0;
-}
-
-static inline void sirfsoc_gpio_set_output(struct sirfsoc_gpio_chip *sgpio,
-					   struct sirfsoc_gpio_bank *bank,
-					   unsigned offset,
-					   int value)
-{
-	u32 out_ctrl;
-	unsigned long flags;
-
-	spin_lock_irqsave(&bank->lock, flags);
-
-	out_ctrl = readl(sgpio->chip.regs + offset);
-	if (value)
-		out_ctrl |= SIRFSOC_GPIO_CTL_DATAOUT_MASK;
-	else
-		out_ctrl &= ~SIRFSOC_GPIO_CTL_DATAOUT_MASK;
-
-	out_ctrl &= ~SIRFSOC_GPIO_CTL_INTR_EN_MASK;
-	out_ctrl |= SIRFSOC_GPIO_CTL_OUT_EN_MASK;
-	writel(out_ctrl, sgpio->chip.regs + offset);
-
-	spin_unlock_irqrestore(&bank->lock, flags);
-}
-
-static int sirfsoc_gpio_direction_output(struct gpio_chip *chip,
-	unsigned gpio, int value)
-{
-	struct sirfsoc_gpio_chip *sgpio = gpiochip_get_data(chip);
-	struct sirfsoc_gpio_bank *bank = sirfsoc_gpio_to_bank(sgpio, gpio);
-	int idx = sirfsoc_gpio_to_bankoff(gpio);
-	u32 offset;
-	unsigned long flags;
-
-	offset = SIRFSOC_GPIO_CTRL(bank->id, idx);
-
-	spin_lock_irqsave(&sgpio->lock, flags);
-
-	sirfsoc_gpio_set_output(sgpio, bank, offset, value);
-
-	spin_unlock_irqrestore(&sgpio->lock, flags);
-
-	return 0;
-}
-
-static int sirfsoc_gpio_get_value(struct gpio_chip *chip, unsigned offset)
-{
-	struct sirfsoc_gpio_chip *sgpio = gpiochip_get_data(chip);
-	struct sirfsoc_gpio_bank *bank = sirfsoc_gpio_to_bank(sgpio, offset);
-	u32 val;
-	unsigned long flags;
-
-	spin_lock_irqsave(&bank->lock, flags);
-
-	val = readl(sgpio->chip.regs + SIRFSOC_GPIO_CTRL(bank->id, offset));
-
-	spin_unlock_irqrestore(&bank->lock, flags);
-
-	return !!(val & SIRFSOC_GPIO_CTL_DATAIN_MASK);
-}
-
-static void sirfsoc_gpio_set_value(struct gpio_chip *chip, unsigned offset,
-	int value)
-{
-	struct sirfsoc_gpio_chip *sgpio = gpiochip_get_data(chip);
-	struct sirfsoc_gpio_bank *bank = sirfsoc_gpio_to_bank(sgpio, offset);
-	u32 ctrl;
-	unsigned long flags;
-
-	spin_lock_irqsave(&bank->lock, flags);
-
-	ctrl = readl(sgpio->chip.regs + SIRFSOC_GPIO_CTRL(bank->id, offset));
-	if (value)
-		ctrl |= SIRFSOC_GPIO_CTL_DATAOUT_MASK;
-	else
-		ctrl &= ~SIRFSOC_GPIO_CTL_DATAOUT_MASK;
-	writel(ctrl, sgpio->chip.regs + SIRFSOC_GPIO_CTRL(bank->id, offset));
-
-	spin_unlock_irqrestore(&bank->lock, flags);
-}
-
-static void sirfsoc_gpio_set_pullup(struct sirfsoc_gpio_chip *sgpio,
-				    const u32 *pullups)
-{
-	int i, n;
-	const unsigned long *p = (const unsigned long *)pullups;
-
-	for (i = 0; i < SIRFSOC_GPIO_NO_OF_BANKS; i++) {
-		for_each_set_bit(n, p + i, BITS_PER_LONG) {
-			u32 offset = SIRFSOC_GPIO_CTRL(i, n);
-			u32 val = readl(sgpio->chip.regs + offset);
-			val |= SIRFSOC_GPIO_CTL_PULL_MASK;
-			val |= SIRFSOC_GPIO_CTL_PULL_HIGH;
-			writel(val, sgpio->chip.regs + offset);
-		}
-	}
-}
-
-static void sirfsoc_gpio_set_pulldown(struct sirfsoc_gpio_chip *sgpio,
-				      const u32 *pulldowns)
-{
-	int i, n;
-	const unsigned long *p = (const unsigned long *)pulldowns;
-
-	for (i = 0; i < SIRFSOC_GPIO_NO_OF_BANKS; i++) {
-		for_each_set_bit(n, p + i, BITS_PER_LONG) {
-			u32 offset = SIRFSOC_GPIO_CTRL(i, n);
-			u32 val = readl(sgpio->chip.regs + offset);
-			val |= SIRFSOC_GPIO_CTL_PULL_MASK;
-			val &= ~SIRFSOC_GPIO_CTL_PULL_HIGH;
-			writel(val, sgpio->chip.regs + offset);
-		}
-	}
-}
-
-static int sirfsoc_gpio_probe(struct device_node *np)
-{
-	int i, err = 0;
-	struct sirfsoc_gpio_chip *sgpio;
-	struct sirfsoc_gpio_bank *bank;
-	void __iomem *regs;
-	struct platform_device *pdev;
-	struct gpio_irq_chip *girq;
-
-	u32 pullups[SIRFSOC_GPIO_NO_OF_BANKS], pulldowns[SIRFSOC_GPIO_NO_OF_BANKS];
-
-	pdev = of_find_device_by_node(np);
-	if (!pdev)
-		return -ENODEV;
-
-	sgpio = devm_kzalloc(&pdev->dev, sizeof(*sgpio), GFP_KERNEL);
-	if (!sgpio) {
-		err = -ENOMEM;
-		goto out_put_device;
-	}
-	spin_lock_init(&sgpio->lock);
-
-	regs = of_iomap(np, 0);
-	if (!regs) {
-		err = -ENOMEM;
-		goto out_put_device;
-	}
-
-	sgpio->chip.gc.request = sirfsoc_gpio_request;
-	sgpio->chip.gc.free = sirfsoc_gpio_free;
-	sgpio->chip.gc.direction_input = sirfsoc_gpio_direction_input;
-	sgpio->chip.gc.get = sirfsoc_gpio_get_value;
-	sgpio->chip.gc.direction_output = sirfsoc_gpio_direction_output;
-	sgpio->chip.gc.set = sirfsoc_gpio_set_value;
-	sgpio->chip.gc.base = 0;
-	sgpio->chip.gc.ngpio = SIRFSOC_GPIO_BANK_SIZE * SIRFSOC_GPIO_NO_OF_BANKS;
-	sgpio->chip.gc.label = kasprintf(GFP_KERNEL, "%pOF", np);
-	sgpio->chip.gc.of_node = np;
-	sgpio->chip.gc.of_xlate = sirfsoc_gpio_of_xlate;
-	sgpio->chip.gc.of_gpio_n_cells = 2;
-	sgpio->chip.gc.parent = &pdev->dev;
-	sgpio->chip.regs = regs;
-
-	girq = &sgpio->chip.gc.irq;
-	girq->chip = &sirfsoc_irq_chip;
-	girq->parent_handler = sirfsoc_gpio_handle_irq;
-	girq->num_parents = SIRFSOC_GPIO_NO_OF_BANKS;
-	girq->parents = devm_kcalloc(&pdev->dev, SIRFSOC_GPIO_NO_OF_BANKS,
-				     sizeof(*girq->parents),
-				     GFP_KERNEL);
-	if (!girq->parents) {
-		err = -ENOMEM;
-		goto out_put_device;
-	}
-	for (i = 0; i < SIRFSOC_GPIO_NO_OF_BANKS; i++) {
-		bank = &sgpio->sgpio_bank[i];
-		spin_lock_init(&bank->lock);
-		bank->parent_irq = platform_get_irq(pdev, i);
-		if (bank->parent_irq < 0) {
-			err = bank->parent_irq;
-			goto out;
-		}
-		girq->parents[i] = bank->parent_irq;
-	}
-	girq->default_type = IRQ_TYPE_NONE;
-	girq->handler = handle_level_irq;
-
-	err = gpiochip_add_data(&sgpio->chip.gc, sgpio);
-	if (err) {
-		dev_err(&pdev->dev, "%pOF: error in probe function with status %d\n",
-			np, err);
-		goto out;
-	}
-
-	err = gpiochip_add_pin_range(&sgpio->chip.gc, dev_name(&pdev->dev),
-		0, 0, SIRFSOC_GPIO_BANK_SIZE * SIRFSOC_GPIO_NO_OF_BANKS);
-	if (err) {
-		dev_err(&pdev->dev,
-			"could not add gpiochip pin range\n");
-		goto out_no_range;
-	}
-
-	if (!of_property_read_u32_array(np, "sirf,pullups", pullups,
-		SIRFSOC_GPIO_NO_OF_BANKS))
-		sirfsoc_gpio_set_pullup(sgpio, pullups);
-
-	if (!of_property_read_u32_array(np, "sirf,pulldowns", pulldowns,
-		SIRFSOC_GPIO_NO_OF_BANKS))
-		sirfsoc_gpio_set_pulldown(sgpio, pulldowns);
-
-	return 0;
-
-out_no_range:
-	gpiochip_remove(&sgpio->chip.gc);
-out:
-	iounmap(regs);
-out_put_device:
-	put_device(&pdev->dev);
-	return err;
-}
-
-static int __init sirfsoc_gpio_init(void)
-{
-
-	struct device_node *np;
-
-	np = of_find_matching_node(NULL, pinmux_ids);
-
-	if (!np)
-		return -ENODEV;
-
-	return sirfsoc_gpio_probe(np);
-}
-subsys_initcall(sirfsoc_gpio_init);