1 files changed, 0 insertions, 445 deletions

diff --git a/drivers/pinctrl/zte/pinctrl-zx.c b/drivers/pinctrl/zte/pinctrl-zx.c
deleted file mode 100644
index 80d00ab8c110..000000000000
--- a/drivers/pinctrl/zte/pinctrl-zx.c
+++ /dev/null
@@ -1,445 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (C) 2017 Sanechips Technology Co., Ltd.
- * Copyright 2017 Linaro Ltd.
- */
-
-#include <linux/io.h>
-#include <linux/of.h>
-#include <linux/of_address.h>
-#include <linux/of_device.h>
-#include <linux/pinctrl/pinctrl.h>
-#include <linux/pinctrl/pinconf-generic.h>
-#include <linux/pinctrl/pinmux.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-
-#include "../core.h"
-#include "../pinctrl-utils.h"
-#include "../pinmux.h"
-#include "pinctrl-zx.h"
-
-#define ZX_PULL_DOWN		BIT(0)
-#define ZX_PULL_UP		BIT(1)
-#define ZX_INPUT_ENABLE		BIT(3)
-#define ZX_DS_SHIFT		4
-#define ZX_DS_MASK		(0x7 << ZX_DS_SHIFT)
-#define ZX_DS_VALUE(x)		(((x) << ZX_DS_SHIFT) & ZX_DS_MASK)
-#define ZX_SLEW			BIT(8)
-
-struct zx_pinctrl {
-	struct pinctrl_dev *pctldev;
-	struct device *dev;
-	void __iomem *base;
-	void __iomem *aux_base;
-	spinlock_t lock;
-	struct zx_pinctrl_soc_info *info;
-};
-
-static int zx_dt_node_to_map(struct pinctrl_dev *pctldev,
-			     struct device_node *np_config,
-			     struct pinctrl_map **map, u32 *num_maps)
-{
-	return pinconf_generic_dt_node_to_map(pctldev, np_config, map,
-					      num_maps, PIN_MAP_TYPE_INVALID);
-}
-
-static const struct pinctrl_ops zx_pinctrl_ops = {
-	.dt_node_to_map = zx_dt_node_to_map,
-	.dt_free_map = pinctrl_utils_free_map,
-	.get_groups_count = pinctrl_generic_get_group_count,
-	.get_group_name = pinctrl_generic_get_group_name,
-	.get_group_pins = pinctrl_generic_get_group_pins,
-};
-
-#define NONAON_MVAL 2
-
-static int zx_set_mux(struct pinctrl_dev *pctldev, unsigned int func_selector,
-		      unsigned int group_selector)
-{
-	struct zx_pinctrl *zpctl = pinctrl_dev_get_drvdata(pctldev);
-	struct zx_pinctrl_soc_info *info = zpctl->info;
-	const struct pinctrl_pin_desc *pindesc = info->pins + group_selector;
-	struct zx_pin_data *data = pindesc->drv_data;
-	struct zx_mux_desc *mux;
-	u32 mask, offset, bitpos;
-	struct function_desc *func;
-	unsigned long flags;
-	u32 val, mval;
-
-	/* Skip reserved pin */
-	if (!data)
-		return -EINVAL;
-
-	mux = data->muxes;
-	mask = (1 << data->width) - 1;
-	offset = data->offset;
-	bitpos = data->bitpos;
-
-	func = pinmux_generic_get_function(pctldev, func_selector);
-	if (!func)
-		return -EINVAL;
-
-	while (mux->name) {
-		if (strcmp(mux->name, func->name) == 0)
-			break;
-		mux++;
-	}
-
-	/* Found mux value to be written */
-	mval = mux->muxval;
-
-	spin_lock_irqsave(&zpctl->lock, flags);
-
-	if (data->aon_pin) {
-		/*
-		 * It's an AON pin, whose mux register offset and bit position
-		 * can be calculated from pin number.  Each register covers 16
-		 * pins, and each pin occupies 2 bits.
-		 */
-		u16 aoffset = pindesc->number / 16 * 4;
-		u16 abitpos = (pindesc->number % 16) * 2;
-
-		if (mval & AON_MUX_FLAG) {
-			/*
-			 * This is a mux value that needs to be written into
-			 * AON pinmux register.  Write it and then we're done.
-			 */
-			val = readl(zpctl->aux_base + aoffset);
-			val &= ~(0x3 << abitpos);
-			val |= (mval & 0x3) << abitpos;
-			writel(val, zpctl->aux_base + aoffset);
-		} else {
-			/*
-			 * It's a mux value that needs to be written into TOP
-			 * pinmux register.
-			 */
-			val = readl(zpctl->base + offset);
-			val &= ~(mask << bitpos);
-			val |= (mval & mask) << bitpos;
-			writel(val, zpctl->base + offset);
-
-			/*
-			 * In this case, the AON pinmux register needs to be
-			 * set up to select non-AON function.
-			 */
-			val = readl(zpctl->aux_base + aoffset);
-			val &= ~(0x3 << abitpos);
-			val |= NONAON_MVAL << abitpos;
-			writel(val, zpctl->aux_base + aoffset);
-		}
-
-	} else {
-		/*
-		 * This is a TOP pin, and we only need to set up TOP pinmux
-		 * register and then we're done with it.
-		 */
-		val = readl(zpctl->base + offset);
-		val &= ~(mask << bitpos);
-		val |= (mval & mask) << bitpos;
-		writel(val, zpctl->base + offset);
-	}
-
-	spin_unlock_irqrestore(&zpctl->lock, flags);
-
-	return 0;
-}
-
-static const struct pinmux_ops zx_pinmux_ops = {
-	.get_functions_count = pinmux_generic_get_function_count,
-	.get_function_name = pinmux_generic_get_function_name,
-	.get_function_groups = pinmux_generic_get_function_groups,
-	.set_mux = zx_set_mux,
-};
-
-static int zx_pin_config_get(struct pinctrl_dev *pctldev, unsigned int pin,
-			     unsigned long *config)
-{
-	struct zx_pinctrl *zpctl = pinctrl_dev_get_drvdata(pctldev);
-	struct zx_pinctrl_soc_info *info = zpctl->info;
-	const struct pinctrl_pin_desc *pindesc = info->pins + pin;
-	struct zx_pin_data *data = pindesc->drv_data;
-	enum pin_config_param param = pinconf_to_config_param(*config);
-	u32 val;
-
-	/* Skip reserved pin */
-	if (!data)
-		return -EINVAL;
-
-	val = readl(zpctl->aux_base + data->coffset);
-	val = val >> data->cbitpos;
-
-	switch (param) {
-	case PIN_CONFIG_BIAS_PULL_DOWN:
-		val &= ZX_PULL_DOWN;
-		val = !!val;
-		if (val == 0)
-			return -EINVAL;
-		break;
-	case PIN_CONFIG_BIAS_PULL_UP:
-		val &= ZX_PULL_UP;
-		val = !!val;
-		if (val == 0)
-			return -EINVAL;
-		break;
-	case PIN_CONFIG_INPUT_ENABLE:
-		val &= ZX_INPUT_ENABLE;
-		val = !!val;
-		if (val == 0)
-			return -EINVAL;
-		break;
-	case PIN_CONFIG_DRIVE_STRENGTH:
-		val &= ZX_DS_MASK;
-		val = val >> ZX_DS_SHIFT;
-		break;
-	case PIN_CONFIG_SLEW_RATE:
-		val &= ZX_SLEW;
-		val = !!val;
-		break;
-	default:
-		return -ENOTSUPP;
-	}
-
-	*config = pinconf_to_config_packed(param, val);
-
-	return 0;
-}
-
-static int zx_pin_config_set(struct pinctrl_dev *pctldev, unsigned int pin,
-			     unsigned long *configs, unsigned int num_configs)
-{
-	struct zx_pinctrl *zpctl = pinctrl_dev_get_drvdata(pctldev);
-	struct zx_pinctrl_soc_info *info = zpctl->info;
-	const struct pinctrl_pin_desc *pindesc = info->pins + pin;
-	struct zx_pin_data *data = pindesc->drv_data;
-	enum pin_config_param param;
-	u32 val, arg;
-	int i;
-
-	/* Skip reserved pin */
-	if (!data)
-		return -EINVAL;
-
-	val = readl(zpctl->aux_base + data->coffset);
-
-	for (i = 0; i < num_configs; i++) {
-		param = pinconf_to_config_param(configs[i]);
-		arg = pinconf_to_config_argument(configs[i]);
-
-		switch (param) {
-		case PIN_CONFIG_BIAS_PULL_DOWN:
-			val |= ZX_PULL_DOWN << data->cbitpos;
-			break;
-		case PIN_CONFIG_BIAS_PULL_UP:
-			val |= ZX_PULL_UP << data->cbitpos;
-			break;
-		case PIN_CONFIG_INPUT_ENABLE:
-			val |= ZX_INPUT_ENABLE << data->cbitpos;
-			break;
-		case PIN_CONFIG_DRIVE_STRENGTH:
-			val &= ~(ZX_DS_MASK << data->cbitpos);
-			val |= ZX_DS_VALUE(arg) << data->cbitpos;
-			break;
-		case PIN_CONFIG_SLEW_RATE:
-			if (arg)
-				val |= ZX_SLEW << data->cbitpos;
-			else
-				val &= ~ZX_SLEW << data->cbitpos;
-			break;
-		default:
-			return -ENOTSUPP;
-		}
-	}
-
-	writel(val, zpctl->aux_base + data->coffset);
-	return 0;
-}
-
-static const struct pinconf_ops zx_pinconf_ops = {
-	.pin_config_set = zx_pin_config_set,
-	.pin_config_get = zx_pin_config_get,
-	.is_generic = true,
-};
-
-static int zx_pinctrl_build_state(struct platform_device *pdev)
-{
-	struct zx_pinctrl *zpctl = platform_get_drvdata(pdev);
-	struct zx_pinctrl_soc_info *info = zpctl->info;
-	struct pinctrl_dev *pctldev = zpctl->pctldev;
-	struct function_desc *functions;
-	int nfunctions;
-	struct group_desc *groups;
-	int ngroups;
-	int i;
-
-	/* Every single pin composes a group */
-	ngroups = info->npins;
-	groups = devm_kcalloc(&pdev->dev, ngroups, sizeof(*groups),
-			      GFP_KERNEL);
-	if (!groups)
-		return -ENOMEM;
-
-	for (i = 0; i < ngroups; i++) {
-		const struct pinctrl_pin_desc *pindesc = info->pins + i;
-		struct group_desc *group = groups + i;
-
-		group->name = pindesc->name;
-		group->pins = (int *) &pindesc->number;
-		group->num_pins = 1;
-		radix_tree_insert(&pctldev->pin_group_tree, i, group);
-	}
-
-	pctldev->num_groups = ngroups;
-
-	/* Build function list from pin mux functions */
-	functions = kcalloc(info->npins, sizeof(*functions), GFP_KERNEL);
-	if (!functions)
-		return -ENOMEM;
-
-	nfunctions = 0;
-	for (i = 0; i < info->npins; i++) {
-		const struct pinctrl_pin_desc *pindesc = info->pins + i;
-		struct zx_pin_data *data = pindesc->drv_data;
-		struct zx_mux_desc *mux;
-
-		/* Reserved pins do not have a drv_data at all */
-		if (!data)
-			continue;
-
-		/* Loop over all muxes for the pin */
-		mux = data->muxes;
-		while (mux->name) {
-			struct function_desc *func = functions;
-
-			/* Search function list for given mux */
-			while (func->name) {
-				if (strcmp(mux->name, func->name) == 0) {
-					/* Function exists */
-					func->num_group_names++;
-					break;
-				}
-				func++;
-			}
-
-			if (!func->name) {
-				/* New function */
-				func->name = mux->name;
-				func->num_group_names = 1;
-				radix_tree_insert(&pctldev->pin_function_tree,
-						  nfunctions++, func);
-			}
-
-			mux++;
-		}
-	}
-
-	pctldev->num_functions = nfunctions;
-	functions = krealloc(functions, nfunctions * sizeof(*functions),
-			     GFP_KERNEL);
-
-	/* Find pin groups for every single function */
-	for (i = 0; i < info->npins; i++) {
-		const struct pinctrl_pin_desc *pindesc = info->pins + i;
-		struct zx_pin_data *data = pindesc->drv_data;
-		struct zx_mux_desc *mux;
-
-		if (!data)
-			continue;
-
-		mux = data->muxes;
-		while (mux->name) {
-			struct function_desc *func;
-			const char **group;
-			int j;
-
-			/* Find function for given mux */
-			for (j = 0; j < nfunctions; j++)
-				if (strcmp(functions[j].name, mux->name) == 0)
-					break;
-
-			func = functions + j;
-			if (!func->group_names) {
-				func->group_names = devm_kcalloc(&pdev->dev,
-						func->num_group_names,
-						sizeof(*func->group_names),
-						GFP_KERNEL);
-				if (!func->group_names) {
-					kfree(functions);
-					return -ENOMEM;
-				}
-			}
-
-			group = func->group_names;
-			while (*group)
-				group++;
-			*group = pindesc->name;
-
-			mux++;
-		}
-	}
-
-	return 0;
-}
-
-int zx_pinctrl_init(struct platform_device *pdev,
-		    struct zx_pinctrl_soc_info *info)
-{
-	struct pinctrl_desc *pctldesc;
-	struct zx_pinctrl *zpctl;
-	struct device_node *np;
-	int ret;
-
-	zpctl = devm_kzalloc(&pdev->dev, sizeof(*zpctl), GFP_KERNEL);
-	if (!zpctl)
-		return -ENOMEM;
-
-	spin_lock_init(&zpctl->lock);
-
-	zpctl->base = devm_platform_ioremap_resource(pdev, 0);
-	if (IS_ERR(zpctl->base))
-		return PTR_ERR(zpctl->base);
-
-	np = of_parse_phandle(pdev->dev.of_node, "zte,auxiliary-controller", 0);
-	if (!np) {
-		dev_err(&pdev->dev, "failed to find auxiliary controller\n");
-		return -ENODEV;
-	}
-
-	zpctl->aux_base = of_iomap(np, 0);
-	of_node_put(np);
-	if (!zpctl->aux_base)
-		return -ENOMEM;
-
-	zpctl->dev = &pdev->dev;
-	zpctl->info = info;
-
-	pctldesc = devm_kzalloc(&pdev->dev, sizeof(*pctldesc), GFP_KERNEL);
-	if (!pctldesc)
-		return -ENOMEM;
-
-	pctldesc->name = dev_name(&pdev->dev);
-	pctldesc->owner = THIS_MODULE;
-	pctldesc->pins = info->pins;
-	pctldesc->npins = info->npins;
-	pctldesc->pctlops = &zx_pinctrl_ops;
-	pctldesc->pmxops = &zx_pinmux_ops;
-	pctldesc->confops = &zx_pinconf_ops;
-
-	zpctl->pctldev = devm_pinctrl_register(&pdev->dev, pctldesc, zpctl);
-	if (IS_ERR(zpctl->pctldev)) {
-		ret = PTR_ERR(zpctl->pctldev);
-		dev_err(&pdev->dev, "failed to register pinctrl: %d\n", ret);
-		return ret;
-	}
-
-	platform_set_drvdata(pdev, zpctl);
-
-	ret = zx_pinctrl_build_state(pdev);
-	if (ret) {
-		dev_err(&pdev->dev, "failed to build state: %d\n", ret);
-		return ret;
-	}
-
-	dev_info(&pdev->dev, "initialized pinctrl driver\n");
-	return 0;
-}