pinctrl: Rename sh-pfc to renesas

The drivers/pinctrl/sh-pfc subdirectory was originally created to group
pin control drivers for various Renesas SuperH and SH-Mobile platforms.
However, the name "sh-pfc" no longer reflects its contents, as the
directory now contains pin control drivers for Renesas SuperH, ARM32,
and ARM64 SoCs.

Hence rename the subdirectory from drivers/pinctrl/sh-pfc to
drivers/pinctrl/renesas, and the related Kconfig symbol from
PINCTRL_SH_PFC to PINCTRL_RENESAS.

Rename the git branch in MAINTAINERS, too, for consistency.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20200909131534.12897-3-geert+renesas@glider.be

1 files changed, 0 insertions, 1249 deletions

diff --git a/drivers/pinctrl/sh-pfc/core.c b/drivers/pinctrl/sh-pfc/core.c
deleted file mode 100644
index c528c124fb0e..000000000000
--- a/drivers/pinctrl/sh-pfc/core.c
+++ /dev/null
@@ -1,1249 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Pin Control and GPIO driver for SuperH Pin Function Controller.
- *
- * Authors: Magnus Damm, Paul Mundt, Laurent Pinchart
- *
- * Copyright (C) 2008 Magnus Damm
- * Copyright (C) 2009 - 2012 Paul Mundt
- */
-
-#define DRV_NAME "sh-pfc"
-
-#include <linux/bitops.h>
-#include <linux/err.h>
-#include <linux/errno.h>
-#include <linux/io.h>
-#include <linux/ioport.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/of.h>
-#include <linux/of_device.h>
-#include <linux/pinctrl/machine.h>
-#include <linux/platform_device.h>
-#include <linux/psci.h>
-#include <linux/slab.h>
-#include <linux/sys_soc.h>
-
-#include "core.h"
-
-static int sh_pfc_map_resources(struct sh_pfc *pfc,
-				struct platform_device *pdev)
-{
-	struct sh_pfc_window *windows;
-	unsigned int *irqs = NULL;
-	unsigned int num_windows;
-	struct resource *res;
-	unsigned int i;
-	int num_irqs;
-
-	/* Count the MEM and IRQ resources. */
-	for (num_windows = 0;; num_windows++) {
-		res = platform_get_resource(pdev, IORESOURCE_MEM, num_windows);
-		if (!res)
-			break;
-	}
-	if (num_windows == 0)
-		return -EINVAL;
-
-	num_irqs = platform_irq_count(pdev);
-	if (num_irqs < 0)
-		return num_irqs;
-
-	/* Allocate memory windows and IRQs arrays. */
-	windows = devm_kcalloc(pfc->dev, num_windows, sizeof(*windows),
-			       GFP_KERNEL);
-	if (windows == NULL)
-		return -ENOMEM;
-
-	pfc->num_windows = num_windows;
-	pfc->windows = windows;
-
-	if (num_irqs) {
-		irqs = devm_kcalloc(pfc->dev, num_irqs, sizeof(*irqs),
-				    GFP_KERNEL);
-		if (irqs == NULL)
-			return -ENOMEM;
-
-		pfc->num_irqs = num_irqs;
-		pfc->irqs = irqs;
-	}
-
-	/* Fill them. */
-	for (i = 0; i < num_windows; i++) {
-		res = platform_get_resource(pdev, IORESOURCE_MEM, i);
-		windows->phys = res->start;
-		windows->size = resource_size(res);
-		windows->virt = devm_ioremap_resource(pfc->dev, res);
-		if (IS_ERR(windows->virt))
-			return -ENOMEM;
-		windows++;
-	}
-	for (i = 0; i < num_irqs; i++)
-		*irqs++ = platform_get_irq(pdev, i);
-
-	return 0;
-}
-
-static void __iomem *sh_pfc_phys_to_virt(struct sh_pfc *pfc, u32 reg)
-{
-	struct sh_pfc_window *window;
-	phys_addr_t address = reg;
-	unsigned int i;
-
-	/* scan through physical windows and convert address */
-	for (i = 0; i < pfc->num_windows; i++) {
-		window = pfc->windows + i;
-
-		if (address < window->phys)
-			continue;
-
-		if (address >= (window->phys + window->size))
-			continue;
-
-		return window->virt + (address - window->phys);
-	}
-
-	BUG();
-	return NULL;
-}
-
-int sh_pfc_get_pin_index(struct sh_pfc *pfc, unsigned int pin)
-{
-	unsigned int offset;
-	unsigned int i;
-
-	for (i = 0, offset = 0; i < pfc->nr_ranges; ++i) {
-		const struct sh_pfc_pin_range *range = &pfc->ranges[i];
-
-		if (pin <= range->end)
-			return pin >= range->start
-			     ? offset + pin - range->start : -1;
-
-		offset += range->end - range->start + 1;
-	}
-
-	return -EINVAL;
-}
-
-static int sh_pfc_enum_in_range(u16 enum_id, const struct pinmux_range *r)
-{
-	if (enum_id < r->begin)
-		return 0;
-
-	if (enum_id > r->end)
-		return 0;
-
-	return 1;
-}
-
-u32 sh_pfc_read_raw_reg(void __iomem *mapped_reg, unsigned int reg_width)
-{
-	switch (reg_width) {
-	case 8:
-		return ioread8(mapped_reg);
-	case 16:
-		return ioread16(mapped_reg);
-	case 32:
-		return ioread32(mapped_reg);
-	}
-
-	BUG();
-	return 0;
-}
-
-void sh_pfc_write_raw_reg(void __iomem *mapped_reg, unsigned int reg_width,
-			  u32 data)
-{
-	switch (reg_width) {
-	case 8:
-		iowrite8(data, mapped_reg);
-		return;
-	case 16:
-		iowrite16(data, mapped_reg);
-		return;
-	case 32:
-		iowrite32(data, mapped_reg);
-		return;
-	}
-
-	BUG();
-}
-
-u32 sh_pfc_read(struct sh_pfc *pfc, u32 reg)
-{
-	return sh_pfc_read_raw_reg(sh_pfc_phys_to_virt(pfc, reg), 32);
-}
-
-void sh_pfc_write(struct sh_pfc *pfc, u32 reg, u32 data)
-{
-	if (pfc->info->unlock_reg)
-		sh_pfc_write_raw_reg(
-			sh_pfc_phys_to_virt(pfc, pfc->info->unlock_reg), 32,
-			~data);
-
-	sh_pfc_write_raw_reg(sh_pfc_phys_to_virt(pfc, reg), 32, data);
-}
-
-static void sh_pfc_config_reg_helper(struct sh_pfc *pfc,
-				     const struct pinmux_cfg_reg *crp,
-				     unsigned int in_pos,
-				     void __iomem **mapped_regp, u32 *maskp,
-				     unsigned int *posp)
-{
-	unsigned int k;
-
-	*mapped_regp = sh_pfc_phys_to_virt(pfc, crp->reg);
-
-	if (crp->field_width) {
-		*maskp = (1 << crp->field_width) - 1;
-		*posp = crp->reg_width - ((in_pos + 1) * crp->field_width);
-	} else {
-		*maskp = (1 << crp->var_field_width[in_pos]) - 1;
-		*posp = crp->reg_width;
-		for (k = 0; k <= in_pos; k++)
-			*posp -= crp->var_field_width[k];
-	}
-}
-
-static void sh_pfc_write_config_reg(struct sh_pfc *pfc,
-				    const struct pinmux_cfg_reg *crp,
-				    unsigned int field, u32 value)
-{
-	void __iomem *mapped_reg;
-	unsigned int pos;
-	u32 mask, data;
-
-	sh_pfc_config_reg_helper(pfc, crp, field, &mapped_reg, &mask, &pos);
-
-	dev_dbg(pfc->dev, "write_reg addr = %x, value = 0x%x, field = %u, "
-		"r_width = %u, f_width = %u\n",
-		crp->reg, value, field, crp->reg_width, hweight32(mask));
-
-	mask = ~(mask << pos);
-	value = value << pos;
-
-	data = sh_pfc_read_raw_reg(mapped_reg, crp->reg_width);
-	data &= mask;
-	data |= value;
-
-	if (pfc->info->unlock_reg)
-		sh_pfc_write_raw_reg(
-			sh_pfc_phys_to_virt(pfc, pfc->info->unlock_reg), 32,
-			~data);
-
-	sh_pfc_write_raw_reg(mapped_reg, crp->reg_width, data);
-}
-
-static int sh_pfc_get_config_reg(struct sh_pfc *pfc, u16 enum_id,
-				 const struct pinmux_cfg_reg **crp,
-				 unsigned int *fieldp, u32 *valuep)
-{
-	unsigned int k = 0;
-
-	while (1) {
-		const struct pinmux_cfg_reg *config_reg =
-			pfc->info->cfg_regs + k;
-		unsigned int r_width = config_reg->reg_width;
-		unsigned int f_width = config_reg->field_width;
-		unsigned int curr_width;
-		unsigned int bit_pos;
-		unsigned int pos = 0;
-		unsigned int m = 0;
-
-		if (!r_width)
-			break;
-
-		for (bit_pos = 0; bit_pos < r_width; bit_pos += curr_width) {
-			u32 ncomb;
-			u32 n;
-
-			if (f_width)
-				curr_width = f_width;
-			else
-				curr_width = config_reg->var_field_width[m];
-
-			ncomb = 1 << curr_width;
-			for (n = 0; n < ncomb; n++) {
-				if (config_reg->enum_ids[pos + n] == enum_id) {
-					*crp = config_reg;
-					*fieldp = m;
-					*valuep = n;
-					return 0;
-				}
-			}
-			pos += ncomb;
-			m++;
-		}
-		k++;
-	}
-
-	return -EINVAL;
-}
-
-static int sh_pfc_mark_to_enum(struct sh_pfc *pfc, u16 mark, int pos,
-			      u16 *enum_idp)
-{
-	const u16 *data = pfc->info->pinmux_data;
-	unsigned int k;
-
-	if (pos) {
-		*enum_idp = data[pos + 1];
-		return pos + 1;
-	}
-
-	for (k = 0; k < pfc->info->pinmux_data_size; k++) {
-		if (data[k] == mark) {
-			*enum_idp = data[k + 1];
-			return k + 1;
-		}
-	}
-
-	dev_err(pfc->dev, "cannot locate data/mark enum_id for mark %d\n",
-		mark);
-	return -EINVAL;
-}
-
-int sh_pfc_config_mux(struct sh_pfc *pfc, unsigned mark, int pinmux_type)
-{
-	const struct pinmux_range *range;
-	int pos = 0;
-
-	switch (pinmux_type) {
-	case PINMUX_TYPE_GPIO:
-	case PINMUX_TYPE_FUNCTION:
-		range = NULL;
-		break;
-
-	case PINMUX_TYPE_OUTPUT:
-		range = &pfc->info->output;
-		break;
-
-	case PINMUX_TYPE_INPUT:
-		range = &pfc->info->input;
-		break;
-
-	default:
-		return -EINVAL;
-	}
-
-	/* Iterate over all the configuration fields we need to update. */
-	while (1) {
-		const struct pinmux_cfg_reg *cr;
-		unsigned int field;
-		u16 enum_id;
-		u32 value;
-		int in_range;
-		int ret;
-
-		pos = sh_pfc_mark_to_enum(pfc, mark, pos, &enum_id);
-		if (pos < 0)
-			return pos;
-
-		if (!enum_id)
-			break;
-
-		/* Check if the configuration field selects a function. If it
-		 * doesn't, skip the field if it's not applicable to the
-		 * requested pinmux type.
-		 */
-		in_range = sh_pfc_enum_in_range(enum_id, &pfc->info->function);
-		if (!in_range) {
-			if (pinmux_type == PINMUX_TYPE_FUNCTION) {
-				/* Functions are allowed to modify all
-				 * fields.
-				 */
-				in_range = 1;
-			} else if (pinmux_type != PINMUX_TYPE_GPIO) {
-				/* Input/output types can only modify fields
-				 * that correspond to their respective ranges.
-				 */
-				in_range = sh_pfc_enum_in_range(enum_id, range);
-
-				/*
-				 * special case pass through for fixed
-				 * input-only or output-only pins without
-				 * function enum register association.
-				 */
-				if (in_range && enum_id == range->force)
-					continue;
-			}
-			/* GPIOs are only allowed to modify function fields. */
-		}
-
-		if (!in_range)
-			continue;
-
-		ret = sh_pfc_get_config_reg(pfc, enum_id, &cr, &field, &value);
-		if (ret < 0)
-			return ret;
-
-		sh_pfc_write_config_reg(pfc, cr, field, value);
-	}
-
-	return 0;
-}
-
-const struct pinmux_bias_reg *
-sh_pfc_pin_to_bias_reg(const struct sh_pfc *pfc, unsigned int pin,
-		       unsigned int *bit)
-{
-	unsigned int i, j;
-
-	for (i = 0; pfc->info->bias_regs[i].puen; i++) {
-		for (j = 0; j < ARRAY_SIZE(pfc->info->bias_regs[i].pins); j++) {
-			if (pfc->info->bias_regs[i].pins[j] == pin) {
-				*bit = j;
-				return &pfc->info->bias_regs[i];
-			}
-		}
-	}
-
-	WARN_ONCE(1, "Pin %u is not in bias info list\n", pin);
-
-	return NULL;
-}
-
-static int sh_pfc_init_ranges(struct sh_pfc *pfc)
-{
-	struct sh_pfc_pin_range *range;
-	unsigned int nr_ranges;
-	unsigned int i;
-
-	if (pfc->info->pins[0].pin == (u16)-1) {
-		/* Pin number -1 denotes that the SoC doesn't report pin numbers
-		 * in its pin arrays yet. Consider the pin numbers range as
-		 * continuous and allocate a single range.
-		 */
-		pfc->nr_ranges = 1;
-		pfc->ranges = devm_kzalloc(pfc->dev, sizeof(*pfc->ranges),
-					   GFP_KERNEL);
-		if (pfc->ranges == NULL)
-			return -ENOMEM;
-
-		pfc->ranges->start = 0;
-		pfc->ranges->end = pfc->info->nr_pins - 1;
-		pfc->nr_gpio_pins = pfc->info->nr_pins;
-
-		return 0;
-	}
-
-	/* Count, allocate and fill the ranges. The PFC SoC data pins array must
-	 * be sorted by pin numbers, and pins without a GPIO port must come
-	 * last.
-	 */
-	for (i = 1, nr_ranges = 1; i < pfc->info->nr_pins; ++i) {
-		if (pfc->info->pins[i-1].pin != pfc->info->pins[i].pin - 1)
-			nr_ranges++;
-	}
-
-	pfc->nr_ranges = nr_ranges;
-	pfc->ranges = devm_kcalloc(pfc->dev, nr_ranges, sizeof(*pfc->ranges),
-				   GFP_KERNEL);
-	if (pfc->ranges == NULL)
-		return -ENOMEM;
-
-	range = pfc->ranges;
-	range->start = pfc->info->pins[0].pin;
-
-	for (i = 1; i < pfc->info->nr_pins; ++i) {
-		if (pfc->info->pins[i-1].pin == pfc->info->pins[i].pin - 1)
-			continue;
-
-		range->end = pfc->info->pins[i-1].pin;
-		if (!(pfc->info->pins[i-1].configs & SH_PFC_PIN_CFG_NO_GPIO))
-			pfc->nr_gpio_pins = range->end + 1;
-
-		range++;
-		range->start = pfc->info->pins[i].pin;
-	}
-
-	range->end = pfc->info->pins[i-1].pin;
-	if (!(pfc->info->pins[i-1].configs & SH_PFC_PIN_CFG_NO_GPIO))
-		pfc->nr_gpio_pins = range->end + 1;
-
-	return 0;
-}
-
-#ifdef CONFIG_OF
-static const struct of_device_id sh_pfc_of_table[] = {
-#ifdef CONFIG_PINCTRL_PFC_EMEV2
-	{
-		.compatible = "renesas,pfc-emev2",
-		.data = &emev2_pinmux_info,
-	},
-#endif
-#ifdef CONFIG_PINCTRL_PFC_R8A73A4
-	{
-		.compatible = "renesas,pfc-r8a73a4",
-		.data = &r8a73a4_pinmux_info,
-	},
-#endif
-#ifdef CONFIG_PINCTRL_PFC_R8A7740
-	{
-		.compatible = "renesas,pfc-r8a7740",
-		.data = &r8a7740_pinmux_info,
-	},
-#endif
-#ifdef CONFIG_PINCTRL_PFC_R8A7742
-	{
-		.compatible = "renesas,pfc-r8a7742",
-		.data = &r8a7742_pinmux_info,
-	},
-#endif
-#ifdef CONFIG_PINCTRL_PFC_R8A7743
-	{
-		.compatible = "renesas,pfc-r8a7743",
-		.data = &r8a7743_pinmux_info,
-	},
-#endif
-#ifdef CONFIG_PINCTRL_PFC_R8A7744
-	{
-		.compatible = "renesas,pfc-r8a7744",
-		.data = &r8a7744_pinmux_info,
-	},
-#endif
-#ifdef CONFIG_PINCTRL_PFC_R8A7745
-	{
-		.compatible = "renesas,pfc-r8a7745",
-		.data = &r8a7745_pinmux_info,
-	},
-#endif
-#ifdef CONFIG_PINCTRL_PFC_R8A77470
-	{
-		.compatible = "renesas,pfc-r8a77470",
-		.data = &r8a77470_pinmux_info,
-	},
-#endif
-#ifdef CONFIG_PINCTRL_PFC_R8A774A1
-	{
-		.compatible = "renesas,pfc-r8a774a1",
-		.data = &r8a774a1_pinmux_info,
-	},
-#endif
-#ifdef CONFIG_PINCTRL_PFC_R8A774B1
-	{
-		.compatible = "renesas,pfc-r8a774b1",
-		.data = &r8a774b1_pinmux_info,
-	},
-#endif
-#ifdef CONFIG_PINCTRL_PFC_R8A774C0
-	{
-		.compatible = "renesas,pfc-r8a774c0",
-		.data = &r8a774c0_pinmux_info,
-	},
-#endif
-#ifdef CONFIG_PINCTRL_PFC_R8A774E1
-	{
-		.compatible = "renesas,pfc-r8a774e1",
-		.data = &r8a774e1_pinmux_info,
-	},
-#endif
-#ifdef CONFIG_PINCTRL_PFC_R8A7778
-	{
-		.compatible = "renesas,pfc-r8a7778",
-		.data = &r8a7778_pinmux_info,
-	},
-#endif
-#ifdef CONFIG_PINCTRL_PFC_R8A7779
-	{
-		.compatible = "renesas,pfc-r8a7779",
-		.data = &r8a7779_pinmux_info,
-	},
-#endif
-#ifdef CONFIG_PINCTRL_PFC_R8A7790
-	{
-		.compatible = "renesas,pfc-r8a7790",
-		.data = &r8a7790_pinmux_info,
-	},
-#endif
-#ifdef CONFIG_PINCTRL_PFC_R8A7791
-	{
-		.compatible = "renesas,pfc-r8a7791",
-		.data = &r8a7791_pinmux_info,
-	},
-#endif
-#ifdef CONFIG_PINCTRL_PFC_R8A7792
-	{
-		.compatible = "renesas,pfc-r8a7792",
-		.data = &r8a7792_pinmux_info,
-	},
-#endif
-#ifdef CONFIG_PINCTRL_PFC_R8A7793
-	{
-		.compatible = "renesas,pfc-r8a7793",
-		.data = &r8a7793_pinmux_info,
-	},
-#endif
-#ifdef CONFIG_PINCTRL_PFC_R8A7794
-	{
-		.compatible = "renesas,pfc-r8a7794",
-		.data = &r8a7794_pinmux_info,
-	},
-#endif
-/* Both r8a7795 entries must be present to make sanity checks work */
-#ifdef CONFIG_PINCTRL_PFC_R8A77950
-	{
-		.compatible = "renesas,pfc-r8a7795",
-		.data = &r8a77950_pinmux_info,
-	},
-#endif
-#ifdef CONFIG_PINCTRL_PFC_R8A77951
-	{
-		.compatible = "renesas,pfc-r8a7795",
-		.data = &r8a77951_pinmux_info,
-	},
-#endif
-#ifdef CONFIG_PINCTRL_PFC_R8A77960
-	{
-		.compatible = "renesas,pfc-r8a7796",
-		.data = &r8a77960_pinmux_info,
-	},
-#endif
-#ifdef CONFIG_PINCTRL_PFC_R8A77961
-	{
-		.compatible = "renesas,pfc-r8a77961",
-		.data = &r8a77961_pinmux_info,
-	},
-#endif
-#ifdef CONFIG_PINCTRL_PFC_R8A77965
-	{
-		.compatible = "renesas,pfc-r8a77965",
-		.data = &r8a77965_pinmux_info,
-	},
-#endif
-#ifdef CONFIG_PINCTRL_PFC_R8A77970
-	{
-		.compatible = "renesas,pfc-r8a77970",
-		.data = &r8a77970_pinmux_info,
-	},
-#endif
-#ifdef CONFIG_PINCTRL_PFC_R8A77980
-	{
-		.compatible = "renesas,pfc-r8a77980",
-		.data = &r8a77980_pinmux_info,
-	},
-#endif
-#ifdef CONFIG_PINCTRL_PFC_R8A77990
-	{
-		.compatible = "renesas,pfc-r8a77990",
-		.data = &r8a77990_pinmux_info,
-	},
-#endif
-#ifdef CONFIG_PINCTRL_PFC_R8A77995
-	{
-		.compatible = "renesas,pfc-r8a77995",
-		.data = &r8a77995_pinmux_info,
-	},
-#endif
-#ifdef CONFIG_PINCTRL_PFC_SH73A0
-	{
-		.compatible = "renesas,pfc-sh73a0",
-		.data = &sh73a0_pinmux_info,
-	},
-#endif
-	{ },
-};
-#endif
-
-#if defined(CONFIG_PM_SLEEP) && defined(CONFIG_ARM_PSCI_FW)
-static void sh_pfc_nop_reg(struct sh_pfc *pfc, u32 reg, unsigned int idx)
-{
-}
-
-static void sh_pfc_save_reg(struct sh_pfc *pfc, u32 reg, unsigned int idx)
-{
-	pfc->saved_regs[idx] = sh_pfc_read(pfc, reg);
-}
-
-static void sh_pfc_restore_reg(struct sh_pfc *pfc, u32 reg, unsigned int idx)
-{
-	sh_pfc_write(pfc, reg, pfc->saved_regs[idx]);
-}
-
-static unsigned int sh_pfc_walk_regs(struct sh_pfc *pfc,
-	void (*do_reg)(struct sh_pfc *pfc, u32 reg, unsigned int idx))
-{
-	unsigned int i, n = 0;
-
-	if (pfc->info->cfg_regs)
-		for (i = 0; pfc->info->cfg_regs[i].reg; i++)
-			do_reg(pfc, pfc->info->cfg_regs[i].reg, n++);
-
-	if (pfc->info->drive_regs)
-		for (i = 0; pfc->info->drive_regs[i].reg; i++)
-			do_reg(pfc, pfc->info->drive_regs[i].reg, n++);
-
-	if (pfc->info->bias_regs)
-		for (i = 0; pfc->info->bias_regs[i].puen; i++) {
-			do_reg(pfc, pfc->info->bias_regs[i].puen, n++);
-			if (pfc->info->bias_regs[i].pud)
-				do_reg(pfc, pfc->info->bias_regs[i].pud, n++);
-		}
-
-	if (pfc->info->ioctrl_regs)
-		for (i = 0; pfc->info->ioctrl_regs[i].reg; i++)
-			do_reg(pfc, pfc->info->ioctrl_regs[i].reg, n++);
-
-	return n;
-}
-
-static int sh_pfc_suspend_init(struct sh_pfc *pfc)
-{
-	unsigned int n;
-
-	/* This is the best we can do to check for the presence of PSCI */
-	if (!psci_ops.cpu_suspend)
-		return 0;
-
-	n = sh_pfc_walk_regs(pfc, sh_pfc_nop_reg);
-	if (!n)
-		return 0;
-
-	pfc->saved_regs = devm_kmalloc_array(pfc->dev, n,
-					     sizeof(*pfc->saved_regs),
-					     GFP_KERNEL);
-	if (!pfc->saved_regs)
-		return -ENOMEM;
-
-	dev_dbg(pfc->dev, "Allocated space to save %u regs\n", n);
-	return 0;
-}
-
-static int sh_pfc_suspend_noirq(struct device *dev)
-{
-	struct sh_pfc *pfc = dev_get_drvdata(dev);
-
-	if (pfc->saved_regs)
-		sh_pfc_walk_regs(pfc, sh_pfc_save_reg);
-	return 0;
-}
-
-static int sh_pfc_resume_noirq(struct device *dev)
-{
-	struct sh_pfc *pfc = dev_get_drvdata(dev);
-
-	if (pfc->saved_regs)
-		sh_pfc_walk_regs(pfc, sh_pfc_restore_reg);
-	return 0;
-}
-
-static const struct dev_pm_ops sh_pfc_pm  = {
-	SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(sh_pfc_suspend_noirq, sh_pfc_resume_noirq)
-};
-#define DEV_PM_OPS	&sh_pfc_pm
-#else
-static int sh_pfc_suspend_init(struct sh_pfc *pfc) { return 0; }
-#define DEV_PM_OPS	NULL
-#endif /* CONFIG_PM_SLEEP && CONFIG_ARM_PSCI_FW */
-
-#ifdef DEBUG
-#define SH_PFC_MAX_REGS		300
-#define SH_PFC_MAX_ENUMS	3000
-
-static unsigned int sh_pfc_errors __initdata = 0;
-static unsigned int sh_pfc_warnings __initdata = 0;
-static u32 *sh_pfc_regs __initdata = NULL;
-static u32 sh_pfc_num_regs __initdata = 0;
-static u16 *sh_pfc_enums __initdata = NULL;
-static u32 sh_pfc_num_enums __initdata = 0;
-
-#define sh_pfc_err(fmt, ...)					\
-	do {							\
-		pr_err("%s: " fmt, drvname, ##__VA_ARGS__);	\
-		sh_pfc_errors++;				\
-	} while (0)
-#define sh_pfc_warn(fmt, ...)					\
-	do {							\
-		pr_warn("%s: " fmt, drvname, ##__VA_ARGS__);	\
-		sh_pfc_warnings++;				\
-	} while (0)
-
-static bool __init is0s(const u16 *enum_ids, unsigned int n)
-{
-	unsigned int i;
-
-	for (i = 0; i < n; i++)
-		if (enum_ids[i])
-			return false;
-
-	return true;
-}
-
-static bool __init same_name(const char *a, const char *b)
-{
-	if (!a || !b)
-		return false;
-
-	return !strcmp(a, b);
-}
-
-static void __init sh_pfc_check_reg(const char *drvname, u32 reg)
-{
-	unsigned int i;
-
-	for (i = 0; i < sh_pfc_num_regs; i++)
-		if (reg == sh_pfc_regs[i]) {
-			sh_pfc_err("reg 0x%x conflict\n", reg);
-			return;
-		}
-
-	if (sh_pfc_num_regs == SH_PFC_MAX_REGS) {
-		pr_warn_once("%s: Please increase SH_PFC_MAX_REGS\n", drvname);
-		return;
-	}
-
-	sh_pfc_regs[sh_pfc_num_regs++] = reg;
-}
-
-static int __init sh_pfc_check_enum(const char *drvname, u16 enum_id)
-{
-	unsigned int i;
-
-	for (i = 0; i < sh_pfc_num_enums; i++) {
-		if (enum_id == sh_pfc_enums[i])
-			return -EINVAL;
-	}
-
-	if (sh_pfc_num_enums == SH_PFC_MAX_ENUMS) {
-		pr_warn_once("%s: Please increase SH_PFC_MAX_ENUMS\n", drvname);
-		return 0;
-	}
-
-	sh_pfc_enums[sh_pfc_num_enums++] = enum_id;
-	return 0;
-}
-
-static void __init sh_pfc_check_reg_enums(const char *drvname, u32 reg,
-					  const u16 *enums, unsigned int n)
-{
-	unsigned int i;
-
-	for (i = 0; i < n; i++) {
-		if (enums[i] && sh_pfc_check_enum(drvname, enums[i]))
-			sh_pfc_err("reg 0x%x enum_id %u conflict\n", reg,
-				   enums[i]);
-	}
-}
-
-static void __init sh_pfc_check_pin(const struct sh_pfc_soc_info *info,
-				    u32 reg, unsigned int pin)
-{
-	const char *drvname = info->name;
-	unsigned int i;
-
-	if (pin == SH_PFC_PIN_NONE)
-		return;
-
-	for (i = 0; i < info->nr_pins; i++) {
-		if (pin == info->pins[i].pin)
-			return;
-	}
-
-	sh_pfc_err("reg 0x%x: pin %u not found\n", reg, pin);
-}
-
-static void __init sh_pfc_check_cfg_reg(const char *drvname,
-					const struct pinmux_cfg_reg *cfg_reg)
-{
-	unsigned int i, n, rw, fw;
-
-	sh_pfc_check_reg(drvname, cfg_reg->reg);
-
-	if (cfg_reg->field_width) {
-		n = cfg_reg->reg_width / cfg_reg->field_width;
-		/* Skip field checks (done at build time) */
-		goto check_enum_ids;
-	}
-
-	for (i = 0, n = 0, rw = 0; (fw = cfg_reg->var_field_width[i]); i++) {
-		if (fw > 3 && is0s(&cfg_reg->enum_ids[n], 1 << fw))
-			sh_pfc_warn("reg 0x%x: reserved field [%u:%u] can be split to reduce table size\n",
-				    cfg_reg->reg, rw, rw + fw - 1);
-		n += 1 << fw;
-		rw += fw;
-	}
-
-	if (rw != cfg_reg->reg_width)
-		sh_pfc_err("reg 0x%x: var_field_width declares %u instead of %u bits\n",
-			   cfg_reg->reg, rw, cfg_reg->reg_width);
-
-	if (n != cfg_reg->nr_enum_ids)
-		sh_pfc_err("reg 0x%x: enum_ids[] has %u instead of %u values\n",
-			   cfg_reg->reg, cfg_reg->nr_enum_ids, n);
-
-check_enum_ids:
-	sh_pfc_check_reg_enums(drvname, cfg_reg->reg, cfg_reg->enum_ids, n);
-}
-
-static void __init sh_pfc_check_drive_reg(const struct sh_pfc_soc_info *info,
-					  const struct pinmux_drive_reg *drive)
-{
-	const char *drvname = info->name;
-	unsigned long seen = 0, mask;
-	unsigned int i;
-
-	sh_pfc_check_reg(info->name, drive->reg);
-	for (i = 0; i < ARRAY_SIZE(drive->fields); i++) {
-		const struct pinmux_drive_reg_field *field = &drive->fields[i];
-
-		if (!field->pin && !field->offset && !field->size)
-			continue;
-
-		mask = GENMASK(field->offset + field->size, field->offset);
-		if (mask & seen)
-			sh_pfc_err("drive_reg 0x%x: field %u overlap\n",
-				   drive->reg, i);
-		seen |= mask;
-
-		sh_pfc_check_pin(info, drive->reg, field->pin);
-	}
-}
-
-static void __init sh_pfc_check_bias_reg(const struct sh_pfc_soc_info *info,
-					 const struct pinmux_bias_reg *bias)
-{
-	unsigned int i;
-
-	sh_pfc_check_reg(info->name, bias->puen);
-	if (bias->pud)
-		sh_pfc_check_reg(info->name, bias->pud);
-	for (i = 0; i < ARRAY_SIZE(bias->pins); i++)
-		sh_pfc_check_pin(info, bias->puen, bias->pins[i]);
-}
-
-static void __init sh_pfc_check_info(const struct sh_pfc_soc_info *info)
-{
-	const char *drvname = info->name;
-	unsigned int *refcnts;
-	unsigned int i, j, k;
-
-	pr_info("Checking %s\n", drvname);
-	sh_pfc_num_regs = 0;
-	sh_pfc_num_enums = 0;
-
-	/* Check pins */
-	for (i = 0; i < info->nr_pins; i++) {
-		const struct sh_pfc_pin *pin = &info->pins[i];
-
-		if (!pin->name) {
-			sh_pfc_err("empty pin %u\n", i);
-			continue;
-		}
-		for (j = 0; j < i; j++) {
-			const struct sh_pfc_pin *pin2 = &info->pins[j];
-
-			if (same_name(pin->name, pin2->name))
-				sh_pfc_err("pin %s: name conflict\n",
-					   pin->name);
-
-			if (pin->pin != (u16)-1 && pin->pin == pin2->pin)
-				sh_pfc_err("pin %s/%s: pin %u conflict\n",
-					   pin->name, pin2->name, pin->pin);
-
-			if (pin->enum_id && pin->enum_id == pin2->enum_id)
-				sh_pfc_err("pin %s/%s: enum_id %u conflict\n",
-					   pin->name, pin2->name,
-					   pin->enum_id);
-		}
-	}
-
-	/* Check groups and functions */
-	refcnts = kcalloc(info->nr_groups, sizeof(*refcnts), GFP_KERNEL);
-	if (!refcnts)
-		return;
-
-	for (i = 0; i < info->nr_functions; i++) {
-		const struct sh_pfc_function *func = &info->functions[i];
-
-		if (!func->name) {
-			sh_pfc_err("empty function %u\n", i);
-			continue;
-		}
-		for (j = 0; j < i; j++) {
-			if (same_name(func->name, info->functions[j].name))
-				sh_pfc_err("function %s: name conflict\n",
-					   func->name);
-		}
-		for (j = 0; j < func->nr_groups; j++) {
-			for (k = 0; k < info->nr_groups; k++) {
-				if (same_name(func->groups[j],
-					      info->groups[k].name)) {
-					refcnts[k]++;
-					break;
-				}
-			}
-
-			if (k == info->nr_groups)
-				sh_pfc_err("function %s: group %s not found\n",
-					   func->name, func->groups[j]);
-		}
-	}
-
-	for (i = 0; i < info->nr_groups; i++) {
-		const struct sh_pfc_pin_group *group = &info->groups[i];
-
-		if (!group->name) {
-			sh_pfc_err("empty group %u\n", i);
-			continue;
-		}
-		for (j = 0; j < i; j++) {
-			if (same_name(group->name, info->groups[j].name))
-				sh_pfc_err("group %s: name conflict\n",
-					   group->name);
-		}
-		if (!refcnts[i])
-			sh_pfc_err("orphan group %s\n", group->name);
-		else if (refcnts[i] > 1)
-			sh_pfc_warn("group %s referenced by %u functions\n",
-				    group->name, refcnts[i]);
-	}
-
-	kfree(refcnts);
-
-	/* Check config register descriptions */
-	for (i = 0; info->cfg_regs && info->cfg_regs[i].reg; i++)
-		sh_pfc_check_cfg_reg(drvname, &info->cfg_regs[i]);
-
-	/* Check drive strength registers */
-	for (i = 0; info->drive_regs && info->drive_regs[i].reg; i++)
-		sh_pfc_check_drive_reg(info, &info->drive_regs[i]);
-
-	/* Check bias registers */
-	for (i = 0; info->bias_regs && info->bias_regs[i].puen; i++)
-		sh_pfc_check_bias_reg(info, &info->bias_regs[i]);
-
-	/* Check ioctrl registers */
-	for (i = 0; info->ioctrl_regs && info->ioctrl_regs[i].reg; i++)
-		sh_pfc_check_reg(drvname, info->ioctrl_regs[i].reg);
-
-	/* Check data registers */
-	for (i = 0; info->data_regs && info->data_regs[i].reg; i++) {
-		sh_pfc_check_reg(drvname, info->data_regs[i].reg);
-		sh_pfc_check_reg_enums(drvname, info->data_regs[i].reg,
-				       info->data_regs[i].enum_ids,
-				       info->data_regs[i].reg_width);
-	}
-
-#ifdef CONFIG_PINCTRL_SH_FUNC_GPIO
-	/* Check function GPIOs */
-	for (i = 0; i < info->nr_func_gpios; i++) {
-		const struct pinmux_func *func = &info->func_gpios[i];
-
-		if (!func->name) {
-			sh_pfc_err("empty function gpio %u\n", i);
-			continue;
-		}
-		for (j = 0; j < i; j++) {
-			if (same_name(func->name, info->func_gpios[j].name))
-				sh_pfc_err("func_gpio %s: name conflict\n",
-					   func->name);
-		}
-		if (sh_pfc_check_enum(drvname, func->enum_id))
-			sh_pfc_err("%s enum_id %u conflict\n", func->name,
-				   func->enum_id);
-	}
-#endif
-}
-
-static void __init sh_pfc_check_driver(const struct platform_driver *pdrv)
-{
-	unsigned int i;
-
-	sh_pfc_regs = kcalloc(SH_PFC_MAX_REGS, sizeof(*sh_pfc_regs),
-			      GFP_KERNEL);
-	if (!sh_pfc_regs)
-		return;
-
-	sh_pfc_enums = kcalloc(SH_PFC_MAX_ENUMS, sizeof(*sh_pfc_enums),
-			      GFP_KERNEL);
-	if (!sh_pfc_enums)
-		goto free_regs;
-
-	pr_warn("Checking builtin pinmux tables\n");
-
-	for (i = 0; pdrv->id_table[i].name[0]; i++)
-		sh_pfc_check_info((void *)pdrv->id_table[i].driver_data);
-
-#ifdef CONFIG_OF
-	for (i = 0; pdrv->driver.of_match_table[i].compatible[0]; i++)
-		sh_pfc_check_info(pdrv->driver.of_match_table[i].data);
-#endif
-
-	pr_warn("Detected %u errors and %u warnings\n", sh_pfc_errors,
-		sh_pfc_warnings);
-
-	kfree(sh_pfc_enums);
-free_regs:
-	kfree(sh_pfc_regs);
-}
-
-#else /* !DEBUG */
-static inline void sh_pfc_check_driver(struct platform_driver *pdrv) {}
-#endif /* !DEBUG */
-
-#ifdef CONFIG_OF
-static const void *sh_pfc_quirk_match(void)
-{
-#if defined(CONFIG_PINCTRL_PFC_R8A77950) || \
-    defined(CONFIG_PINCTRL_PFC_R8A77951)
-	const struct soc_device_attribute *match;
-	static const struct soc_device_attribute quirks[] = {
-		{
-			.soc_id = "r8a7795", .revision = "ES1.*",
-			.data = &r8a77950_pinmux_info,
-		},
-		{
-			.soc_id = "r8a7795",
-			.data = &r8a77951_pinmux_info,
-		},
-
-		{ /* sentinel */ }
-	};
-
-	match = soc_device_match(quirks);
-	if (match)
-		return match->data ?: ERR_PTR(-ENODEV);
-#endif /* CONFIG_PINCTRL_PFC_R8A77950 || CONFIG_PINCTRL_PFC_R8A77951 */
-
-	return NULL;
-}
-#endif /* CONFIG_OF */
-
-static int sh_pfc_probe(struct platform_device *pdev)
-{
-	const struct sh_pfc_soc_info *info;
-	struct sh_pfc *pfc;
-	int ret;
-
-#ifdef CONFIG_OF
-	if (pdev->dev.of_node) {
-		info = sh_pfc_quirk_match();
-		if (IS_ERR(info))
-			return PTR_ERR(info);
-
-		if (!info)
-			info = of_device_get_match_data(&pdev->dev);
-	} else
-#endif
-		info = (const void *)platform_get_device_id(pdev)->driver_data;
-
-	pfc = devm_kzalloc(&pdev->dev, sizeof(*pfc), GFP_KERNEL);
-	if (pfc == NULL)
-		return -ENOMEM;
-
-	pfc->info = info;
-	pfc->dev = &pdev->dev;
-
-	ret = sh_pfc_map_resources(pfc, pdev);
-	if (unlikely(ret < 0))
-		return ret;
-
-	spin_lock_init(&pfc->lock);
-
-	if (info->ops && info->ops->init) {
-		ret = info->ops->init(pfc);
-		if (ret < 0)
-			return ret;
-
-		/* .init() may have overridden pfc->info */
-		info = pfc->info;
-	}
-
-	ret = sh_pfc_suspend_init(pfc);
-	if (ret)
-		return ret;
-
-	/* Enable dummy states for those platforms without pinctrl support */
-	if (!of_have_populated_dt())
-		pinctrl_provide_dummies();
-
-	ret = sh_pfc_init_ranges(pfc);
-	if (ret < 0)
-		return ret;
-
-	/*
-	 * Initialize pinctrl bindings first
-	 */
-	ret = sh_pfc_register_pinctrl(pfc);
-	if (unlikely(ret != 0))
-		return ret;
-
-#ifdef CONFIG_PINCTRL_SH_PFC_GPIO
-	/*
-	 * Then the GPIO chip
-	 */
-	ret = sh_pfc_register_gpiochip(pfc);
-	if (unlikely(ret != 0)) {
-		/*
-		 * If the GPIO chip fails to come up we still leave the
-		 * PFC state as it is, given that there are already
-		 * extant users of it that have succeeded by this point.
-		 */
-		dev_notice(pfc->dev, "failed to init GPIO chip, ignoring...\n");
-	}
-#endif
-
-	platform_set_drvdata(pdev, pfc);
-
-	dev_info(pfc->dev, "%s support registered\n", info->name);
-
-	return 0;
-}
-
-static const struct platform_device_id sh_pfc_id_table[] = {
-#ifdef CONFIG_PINCTRL_PFC_SH7203
-	{ "pfc-sh7203", (kernel_ulong_t)&sh7203_pinmux_info },
-#endif
-#ifdef CONFIG_PINCTRL_PFC_SH7264
-	{ "pfc-sh7264", (kernel_ulong_t)&sh7264_pinmux_info },
-#endif
-#ifdef CONFIG_PINCTRL_PFC_SH7269
-	{ "pfc-sh7269", (kernel_ulong_t)&sh7269_pinmux_info },
-#endif
-#ifdef CONFIG_PINCTRL_PFC_SH7720
-	{ "pfc-sh7720", (kernel_ulong_t)&sh7720_pinmux_info },
-#endif
-#ifdef CONFIG_PINCTRL_PFC_SH7722
-	{ "pfc-sh7722", (kernel_ulong_t)&sh7722_pinmux_info },
-#endif
-#ifdef CONFIG_PINCTRL_PFC_SH7723
-	{ "pfc-sh7723", (kernel_ulong_t)&sh7723_pinmux_info },
-#endif
-#ifdef CONFIG_PINCTRL_PFC_SH7724
-	{ "pfc-sh7724", (kernel_ulong_t)&sh7724_pinmux_info },
-#endif
-#ifdef CONFIG_PINCTRL_PFC_SH7734
-	{ "pfc-sh7734", (kernel_ulong_t)&sh7734_pinmux_info },
-#endif
-#ifdef CONFIG_PINCTRL_PFC_SH7757
-	{ "pfc-sh7757", (kernel_ulong_t)&sh7757_pinmux_info },
-#endif
-#ifdef CONFIG_PINCTRL_PFC_SH7785
-	{ "pfc-sh7785", (kernel_ulong_t)&sh7785_pinmux_info },
-#endif
-#ifdef CONFIG_PINCTRL_PFC_SH7786
-	{ "pfc-sh7786", (kernel_ulong_t)&sh7786_pinmux_info },
-#endif
-#ifdef CONFIG_PINCTRL_PFC_SHX3
-	{ "pfc-shx3", (kernel_ulong_t)&shx3_pinmux_info },
-#endif
-	{ },
-};
-
-static struct platform_driver sh_pfc_driver = {
-	.probe		= sh_pfc_probe,
-	.id_table	= sh_pfc_id_table,
-	.driver		= {
-		.name	= DRV_NAME,
-		.of_match_table = of_match_ptr(sh_pfc_of_table),
-		.pm     = DEV_PM_OPS,
-	},
-};
-
-static int __init sh_pfc_init(void)
-{
-	sh_pfc_check_driver(&sh_pfc_driver);
-	return platform_driver_register(&sh_pfc_driver);
-}
-postcore_initcall(sh_pfc_init);