| /* |
| * Core driver for the imx pin controller |
| * |
| * Copyright (C) 2012 Freescale Semiconductor, Inc. |
| * Copyright (C) 2012 Linaro Ltd. |
| * |
| * Author: Dong Aisheng <dong.aisheng@linaro.org> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| */ |
| |
| #include <linux/err.h> |
| #include <linux/init.h> |
| #include <linux/io.h> |
| #include <linux/mfd/syscon.h> |
| #include <linux/of.h> |
| #include <linux/of_device.h> |
| #include <linux/of_address.h> |
| #include <linux/pinctrl/machine.h> |
| #include <linux/pinctrl/pinconf.h> |
| #include <linux/pinctrl/pinctrl.h> |
| #include <linux/pinctrl/pinmux.h> |
| #include <linux/slab.h> |
| #include <linux/regmap.h> |
| |
| #include "../core.h" |
| #include "pinctrl-imx.h" |
| |
| /* The bits in CONFIG cell defined in binding doc*/ |
| #define IMX_NO_PAD_CTL 0x80000000 /* no pin config need */ |
| |
| static inline const struct imx_pin_group *imx_pinctrl_find_group_by_name( |
| const struct imx_pinctrl_soc_info *info, |
| const char *name) |
| { |
| const struct imx_pin_group *grp = NULL; |
| int i; |
| |
| for (i = 0; i < info->ngroups; i++) { |
| if (!strcmp(info->groups[i].name, name)) { |
| grp = &info->groups[i]; |
| break; |
| } |
| } |
| |
| return grp; |
| } |
| |
| static int imx_get_groups_count(struct pinctrl_dev *pctldev) |
| { |
| struct imx_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev); |
| const struct imx_pinctrl_soc_info *info = ipctl->info; |
| |
| return info->ngroups; |
| } |
| |
| static const char *imx_get_group_name(struct pinctrl_dev *pctldev, |
| unsigned selector) |
| { |
| struct imx_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev); |
| const struct imx_pinctrl_soc_info *info = ipctl->info; |
| |
| return info->groups[selector].name; |
| } |
| |
| static int imx_get_group_pins(struct pinctrl_dev *pctldev, unsigned selector, |
| const unsigned **pins, |
| unsigned *npins) |
| { |
| struct imx_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev); |
| const struct imx_pinctrl_soc_info *info = ipctl->info; |
| |
| if (selector >= info->ngroups) |
| return -EINVAL; |
| |
| *pins = info->groups[selector].pin_ids; |
| *npins = info->groups[selector].npins; |
| |
| return 0; |
| } |
| |
| static void imx_pin_dbg_show(struct pinctrl_dev *pctldev, struct seq_file *s, |
| unsigned offset) |
| { |
| seq_printf(s, "%s", dev_name(pctldev->dev)); |
| } |
| |
| static int imx_dt_node_to_map(struct pinctrl_dev *pctldev, |
| struct device_node *np, |
| struct pinctrl_map **map, unsigned *num_maps) |
| { |
| struct imx_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev); |
| const struct imx_pinctrl_soc_info *info = ipctl->info; |
| const struct imx_pin_group *grp; |
| struct pinctrl_map *new_map; |
| struct device_node *parent; |
| int map_num = 1; |
| int i, j; |
| |
| /* |
| * first find the group of this node and check if we need create |
| * config maps for pins |
| */ |
| grp = imx_pinctrl_find_group_by_name(info, np->name); |
| if (!grp) { |
| dev_err(info->dev, "unable to find group for node %s\n", |
| np->name); |
| return -EINVAL; |
| } |
| |
| if (info->flags & IMX8_USE_SCU) { |
| map_num += grp->npins; |
| } else { |
| for (i = 0; i < grp->npins; i++) { |
| if (!(grp->pins[i].pin_conf.pin_memmap.config & |
| IMX_NO_PAD_CTL)) |
| map_num++; |
| } |
| } |
| |
| new_map = kmalloc(sizeof(struct pinctrl_map) * map_num, GFP_KERNEL); |
| if (!new_map) |
| return -ENOMEM; |
| |
| *map = new_map; |
| *num_maps = map_num; |
| |
| /* create mux map */ |
| parent = of_get_parent(np); |
| if (!parent) { |
| kfree(new_map); |
| return -EINVAL; |
| } |
| new_map[0].type = PIN_MAP_TYPE_MUX_GROUP; |
| new_map[0].data.mux.function = parent->name; |
| new_map[0].data.mux.group = np->name; |
| of_node_put(parent); |
| |
| /* create config map */ |
| new_map++; |
| for (i = j = 0; i < grp->npins; i++) { |
| if (info->flags & IMX8_USE_SCU) { |
| new_map[j].type = PIN_MAP_TYPE_CONFIGS_PIN; |
| new_map[j].data.configs.group_or_pin = |
| pin_get_name(pctldev, grp->pins[i].pin); |
| new_map[j].data.configs.configs = |
| (unsigned long *)&grp->pins[i].pin_conf.pin_scu.mux; |
| new_map[j].data.configs.num_configs = 2; |
| j++; |
| } else if (!(grp->pins[i].pin_conf.pin_memmap.config & IMX_NO_PAD_CTL)) { |
| new_map[j].type = PIN_MAP_TYPE_CONFIGS_PIN; |
| new_map[j].data.configs.group_or_pin = |
| pin_get_name(pctldev, grp->pins[i].pin); |
| new_map[j].data.configs.configs = |
| &grp->pins[i].pin_conf.pin_memmap.config; |
| new_map[j].data.configs.num_configs = 1; |
| j++; |
| } |
| } |
| |
| dev_dbg(pctldev->dev, "maps: function %s group %s num %d\n", |
| (*map)->data.mux.function, (*map)->data.mux.group, map_num); |
| |
| return 0; |
| } |
| |
| static void imx_dt_free_map(struct pinctrl_dev *pctldev, |
| struct pinctrl_map *map, unsigned num_maps) |
| { |
| kfree(map); |
| } |
| |
| static const struct pinctrl_ops imx_pctrl_ops = { |
| .get_groups_count = imx_get_groups_count, |
| .get_group_name = imx_get_group_name, |
| .get_group_pins = imx_get_group_pins, |
| .pin_dbg_show = imx_pin_dbg_show, |
| .dt_node_to_map = imx_dt_node_to_map, |
| .dt_free_map = imx_dt_free_map, |
| |
| }; |
| |
| static int imx_pmx_set(struct pinctrl_dev *pctldev, unsigned selector, |
| unsigned group) |
| { |
| struct imx_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev); |
| const struct imx_pinctrl_soc_info *info = ipctl->info; |
| unsigned int npins; |
| int i, err; |
| struct imx_pin_group *grp; |
| |
| /* |
| * Configure the mux mode for each pin in the group for a specific |
| * function. |
| */ |
| grp = &info->groups[group]; |
| npins = grp->npins; |
| |
| dev_dbg(ipctl->dev, "enable function %s group %s\n", |
| info->functions[selector].name, grp->name); |
| |
| for (i = 0; i < npins; i++) { |
| if (info->flags & IMX8_USE_SCU) |
| err = imx_pmx_set_one_pin_scu(ipctl, &grp->pins[i]); |
| else |
| err = imx_pmx_set_one_pin_mem(ipctl, &grp->pins[i]); |
| if (err) |
| return err; |
| } |
| |
| return 0; |
| } |
| |
| static int imx_pmx_get_funcs_count(struct pinctrl_dev *pctldev) |
| { |
| struct imx_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev); |
| const struct imx_pinctrl_soc_info *info = ipctl->info; |
| |
| return info->nfunctions; |
| } |
| |
| static const char *imx_pmx_get_func_name(struct pinctrl_dev *pctldev, |
| unsigned selector) |
| { |
| struct imx_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev); |
| const struct imx_pinctrl_soc_info *info = ipctl->info; |
| |
| return info->functions[selector].name; |
| } |
| |
| static int imx_pmx_get_groups(struct pinctrl_dev *pctldev, unsigned selector, |
| const char * const **groups, |
| unsigned * const num_groups) |
| { |
| struct imx_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev); |
| const struct imx_pinctrl_soc_info *info = ipctl->info; |
| |
| *groups = info->functions[selector].groups; |
| *num_groups = info->functions[selector].num_groups; |
| |
| return 0; |
| } |
| |
| static int imx_pmx_gpio_request_enable(struct pinctrl_dev *pctldev, |
| struct pinctrl_gpio_range *range, unsigned offset) |
| { |
| struct imx_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev); |
| const struct imx_pinctrl_soc_info *info = ipctl->info; |
| |
| if (info->flags & IMX8_USE_SCU) |
| return imx_pmx_backend_gpio_request_enable_scu(pctldev, range, offset); |
| else |
| return imx_pmx_backend_gpio_request_enable_mem(pctldev, range, offset); |
| } |
| |
| static void imx_pmx_gpio_disable_free(struct pinctrl_dev *pctldev, |
| struct pinctrl_gpio_range *range, unsigned offset) |
| { |
| struct imx_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev); |
| const struct imx_pinctrl_soc_info *info = ipctl->info; |
| |
| if (info->flags & IMX8_USE_SCU) |
| imx_pmx_backend_gpio_disable_free_scu(pctldev, range, offset); |
| else |
| imx_pmx_backend_gpio_disable_free_mem(pctldev, range, offset); |
| } |
| |
| static int imx_pmx_gpio_set_direction(struct pinctrl_dev *pctldev, |
| struct pinctrl_gpio_range *range, unsigned offset, bool input) |
| { |
| struct imx_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev); |
| const struct imx_pinctrl_soc_info *info = ipctl->info; |
| |
| if (info->flags & IMX8_USE_SCU) |
| return imx_pmx_backend_gpio_set_direction_scu(pctldev, |
| range, offset, input); |
| else |
| return imx_pmx_backend_gpio_set_direction_mem(pctldev, |
| range, offset, input); |
| } |
| |
| static const struct pinmux_ops imx_pmx_ops = { |
| .get_functions_count = imx_pmx_get_funcs_count, |
| .get_function_name = imx_pmx_get_func_name, |
| .get_function_groups = imx_pmx_get_groups, |
| .set_mux = imx_pmx_set, |
| .gpio_request_enable = imx_pmx_gpio_request_enable, |
| .gpio_disable_free = imx_pmx_gpio_disable_free, |
| .gpio_set_direction = imx_pmx_gpio_set_direction, |
| }; |
| |
| static int imx_pinconf_get(struct pinctrl_dev *pctldev, |
| unsigned pin_id, unsigned long *config) |
| { |
| struct imx_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev); |
| const struct imx_pinctrl_soc_info *info = ipctl->info; |
| |
| if (info->flags & IMX8_USE_SCU) |
| return imx_pinconf_backend_get_scu(pctldev, pin_id, config); |
| else |
| return imx_pinconf_backend_get_mem(pctldev, pin_id, config); |
| } |
| |
| static int imx_pinconf_set(struct pinctrl_dev *pctldev, |
| unsigned pin_id, unsigned long *configs, |
| unsigned num_configs) |
| { |
| struct imx_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev); |
| const struct imx_pinctrl_soc_info *info = ipctl->info; |
| |
| if (info->flags & IMX8_USE_SCU) |
| return imx_pinconf_backend_set_scu(pctldev, pin_id, configs, num_configs); |
| else |
| return imx_pinconf_backend_set_mem(pctldev, pin_id, configs, num_configs); |
| } |
| |
| static void imx_pinconf_dbg_show(struct pinctrl_dev *pctldev, |
| struct seq_file *s, unsigned pin_id) |
| { |
| struct imx_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev); |
| const struct imx_pinctrl_soc_info *info = ipctl->info; |
| unsigned long config; |
| int ret; |
| |
| if (info->flags & IMX8_USE_SCU) |
| ret = imx_pinconf_backend_get_scu(pctldev, pin_id, &config); |
| else |
| ret = imx_pinconf_backend_get_mem(pctldev, pin_id, &config); |
| |
| if (ret) { |
| seq_printf(s, "N/A"); |
| return; |
| } |
| |
| seq_printf(s, "0x%lx", config); |
| } |
| |
| static void imx_pinconf_group_dbg_show(struct pinctrl_dev *pctldev, |
| struct seq_file *s, unsigned group) |
| { |
| struct imx_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev); |
| const struct imx_pinctrl_soc_info *info = ipctl->info; |
| struct imx_pin_group *grp; |
| unsigned long config; |
| const char *name; |
| int i, ret; |
| |
| if (group > info->ngroups) |
| return; |
| |
| seq_printf(s, "\n"); |
| grp = &info->groups[group]; |
| for (i = 0; i < grp->npins; i++) { |
| struct imx_pin *pin = &grp->pins[i]; |
| name = pin_get_name(pctldev, pin->pin); |
| ret = imx_pinconf_get(pctldev, pin->pin, &config); |
| if (ret) |
| return; |
| seq_printf(s, " %s: 0x%lx\n", name, config); |
| } |
| } |
| |
| static const struct pinconf_ops imx_pinconf_ops = { |
| .pin_config_get = imx_pinconf_get, |
| .pin_config_set = imx_pinconf_set, |
| .pin_config_dbg_show = imx_pinconf_dbg_show, |
| .pin_config_group_dbg_show = imx_pinconf_group_dbg_show, |
| }; |
| |
| /* |
| * Each pin represented in fsl,pins consists of 5 u32 PIN_FUNC_ID and |
| * 1 u32 CONFIG, so 24 types in total for each pin. |
| */ |
| #define FSL_IMX8_PIN_SIZE 12 |
| #define FSL_PIN_SIZE 24 |
| #define SHARE_FSL_PIN_SIZE 20 |
| |
| static int imx_pinctrl_parse_groups(struct device_node *np, |
| struct imx_pin_group *grp, |
| struct imx_pinctrl_soc_info *info, |
| u32 index) |
| { |
| int size, pin_size; |
| const __be32 *list, **list_p; |
| int i; |
| |
| dev_dbg(info->dev, "group(%d): %s\n", index, np->name); |
| |
| if (info->flags & IMX8_USE_SCU) |
| pin_size = FSL_IMX8_PIN_SIZE; |
| else if (info->flags & SHARE_MUX_CONF_REG) |
| pin_size = SHARE_FSL_PIN_SIZE; |
| else |
| pin_size = FSL_PIN_SIZE; |
| /* Initialise group */ |
| grp->name = np->name; |
| |
| /* |
| * the binding format is fsl,pins = <PIN_FUNC_ID CONFIG ...>, |
| * do sanity check and calculate pins number |
| */ |
| list = of_get_property(np, "fsl,pins", &size); |
| if (!list) { |
| dev_err(info->dev, "no fsl,pins property in node %s\n", np->full_name); |
| return -EINVAL; |
| } |
| |
| list_p = &list; |
| |
| /* we do not check return since it's safe node passed down */ |
| if (!size || size % pin_size) { |
| dev_err(info->dev, "Invalid fsl,pins property in node %s\n", np->full_name); |
| return -EINVAL; |
| } |
| |
| grp->npins = size / pin_size; |
| grp->pins = devm_kzalloc(info->dev, grp->npins * sizeof(struct imx_pin), |
| GFP_KERNEL); |
| grp->pin_ids = devm_kzalloc(info->dev, grp->npins * sizeof(unsigned int), |
| GFP_KERNEL); |
| if (!grp->pins || ! grp->pin_ids) |
| return -ENOMEM; |
| |
| for (i = 0; i < grp->npins; i++) { |
| if (info->flags & IMX8_USE_SCU) |
| imx_pinctrl_parse_pin_scu(info, &grp->pin_ids[i], |
| &grp->pins[i], list_p); |
| else |
| imx_pinctrl_parse_pin_mem(info, &grp->pin_ids[i], |
| &grp->pins[i], list_p); |
| } |
| |
| return 0; |
| } |
| |
| static int imx_pinctrl_parse_functions(struct device_node *np, |
| struct imx_pinctrl_soc_info *info, |
| u32 index) |
| { |
| struct device_node *child; |
| struct imx_pmx_func *func; |
| struct imx_pin_group *grp; |
| u32 i = 0; |
| |
| dev_dbg(info->dev, "parse function(%d): %s\n", index, np->name); |
| |
| func = &info->functions[index]; |
| |
| /* Initialise function */ |
| func->name = np->name; |
| func->num_groups = of_get_child_count(np); |
| if (func->num_groups == 0) { |
| dev_err(info->dev, "no groups defined in %s\n", np->full_name); |
| return -EINVAL; |
| } |
| func->groups = devm_kzalloc(info->dev, |
| func->num_groups * sizeof(char *), GFP_KERNEL); |
| |
| for_each_child_of_node(np, child) { |
| func->groups[i] = child->name; |
| grp = &info->groups[info->group_index++]; |
| imx_pinctrl_parse_groups(child, grp, info, i++); |
| } |
| |
| return 0; |
| } |
| |
| /* |
| * Check if the DT contains pins in the direct child nodes. This indicates the |
| * newer DT format to store pins. This function returns true if the first found |
| * fsl,pins property is in a child of np. Otherwise false is returned. |
| */ |
| static bool imx_pinctrl_dt_is_flat_functions(struct device_node *np) |
| { |
| struct device_node *function_np; |
| struct device_node *pinctrl_np; |
| |
| for_each_child_of_node(np, function_np) { |
| if (of_property_read_bool(function_np, "fsl,pins")) |
| return true; |
| |
| for_each_child_of_node(function_np, pinctrl_np) { |
| if (of_property_read_bool(pinctrl_np, "fsl,pins")) |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| static int imx_pinctrl_probe_dt(struct platform_device *pdev, |
| struct imx_pinctrl_soc_info *info) |
| { |
| struct device_node *np = pdev->dev.of_node; |
| struct device_node *child; |
| u32 nfuncs = 0; |
| u32 i = 0; |
| bool flat_funcs; |
| |
| if (!np) |
| return -ENODEV; |
| |
| flat_funcs = imx_pinctrl_dt_is_flat_functions(np); |
| if (flat_funcs) { |
| nfuncs = 1; |
| } else { |
| nfuncs = of_get_child_count(np); |
| if (nfuncs <= 0) { |
| dev_err(&pdev->dev, "no functions defined\n"); |
| return -EINVAL; |
| } |
| } |
| |
| info->nfunctions = nfuncs; |
| info->functions = devm_kzalloc(&pdev->dev, nfuncs * sizeof(struct imx_pmx_func), |
| GFP_KERNEL); |
| if (!info->functions) |
| return -ENOMEM; |
| |
| info->group_index = 0; |
| if (flat_funcs) { |
| info->ngroups = of_get_child_count(np); |
| } else { |
| info->ngroups = 0; |
| for_each_child_of_node(np, child) |
| info->ngroups += of_get_child_count(child); |
| } |
| info->groups = devm_kzalloc(&pdev->dev, info->ngroups * sizeof(struct imx_pin_group), |
| GFP_KERNEL); |
| if (!info->groups) |
| return -ENOMEM; |
| |
| if (flat_funcs) { |
| imx_pinctrl_parse_functions(np, info, 0); |
| } else { |
| for_each_child_of_node(np, child) |
| imx_pinctrl_parse_functions(child, info, i++); |
| } |
| |
| return 0; |
| } |
| |
| int imx_pinctrl_probe(struct platform_device *pdev, |
| struct imx_pinctrl_soc_info *info) |
| { |
| struct regmap_config config = { .name = "gpr" }; |
| struct device_node *dev_np = pdev->dev.of_node; |
| struct pinctrl_desc *imx_pinctrl_desc; |
| struct device_node *np; |
| struct imx_pinctrl *ipctl; |
| struct resource *res; |
| struct regmap *gpr; |
| int ret, i; |
| |
| if (!info || !info->pins || !info->npins) { |
| dev_err(&pdev->dev, "wrong pinctrl info\n"); |
| return -EINVAL; |
| } |
| info->dev = &pdev->dev; |
| |
| if (info->gpr_compatible) { |
| gpr = syscon_regmap_lookup_by_compatible(info->gpr_compatible); |
| if (!IS_ERR(gpr)) |
| regmap_attach_dev(&pdev->dev, gpr, &config); |
| } |
| |
| /* Create state holders etc for this driver */ |
| ipctl = devm_kzalloc(&pdev->dev, sizeof(*ipctl), GFP_KERNEL); |
| if (!ipctl) |
| return -ENOMEM; |
| |
| if (!(info->flags & IMX8_USE_SCU)) { |
| info->pin_regs = devm_kmalloc(&pdev->dev, sizeof(*info->pin_regs) * |
| info->npins, GFP_KERNEL); |
| if (!info->pin_regs) |
| return -ENOMEM; |
| |
| for (i = 0; i < info->npins; i++) { |
| info->pin_regs[i].mux_reg = -1; |
| info->pin_regs[i].conf_reg = -1; |
| } |
| |
| res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
| ipctl->base = devm_ioremap_resource(&pdev->dev, res); |
| if (IS_ERR(ipctl->base)) |
| return PTR_ERR(ipctl->base); |
| |
| /* only for share mux and conf reg */ |
| of_property_read_u32(dev_np, "fsl,mux_mask", &info->mux_mask); |
| |
| if (of_property_read_bool(dev_np, "fsl,input-sel")) { |
| np = of_parse_phandle(dev_np, "fsl,input-sel", 0); |
| if (!np) { |
| dev_err(&pdev->dev, "iomuxc fsl,input-sel property not found\n"); |
| return -EINVAL; |
| } |
| |
| ipctl->input_sel_base = of_iomap(np, 0); |
| of_node_put(np); |
| if (!ipctl->input_sel_base) { |
| dev_err(&pdev->dev, |
| "iomuxc input select base address not found\n"); |
| return -ENOMEM; |
| } |
| } |
| } |
| |
| imx_pinctrl_desc = devm_kzalloc(&pdev->dev, sizeof(*imx_pinctrl_desc), |
| GFP_KERNEL); |
| if (!imx_pinctrl_desc) |
| return -ENOMEM; |
| |
| imx_pinctrl_desc->name = dev_name(&pdev->dev); |
| imx_pinctrl_desc->pins = info->pins; |
| imx_pinctrl_desc->npins = info->npins; |
| imx_pinctrl_desc->pctlops = &imx_pctrl_ops; |
| imx_pinctrl_desc->pmxops = &imx_pmx_ops; |
| imx_pinctrl_desc->confops = &imx_pinconf_ops; |
| imx_pinctrl_desc->owner = THIS_MODULE; |
| |
| ret = imx_pinctrl_probe_dt(pdev, info); |
| if (ret) { |
| dev_err(&pdev->dev, "fail to probe dt properties\n"); |
| return ret; |
| } |
| |
| ipctl->info = info; |
| ipctl->dev = info->dev; |
| platform_set_drvdata(pdev, ipctl); |
| ipctl->pctl = devm_pinctrl_register(&pdev->dev, |
| imx_pinctrl_desc, ipctl); |
| if (IS_ERR(ipctl->pctl)) { |
| dev_err(&pdev->dev, "could not register IMX pinctrl driver\n"); |
| return PTR_ERR(ipctl->pctl); |
| } |
| |
| dev_info(&pdev->dev, "initialized IMX pinctrl driver\n"); |
| |
| return 0; |
| } |
| |
| int imx_pinctrl_suspend(struct device *dev) |
| { |
| struct imx_pinctrl *ipctl = dev_get_drvdata(dev); |
| |
| if (!ipctl) |
| return -EINVAL; |
| |
| return pinctrl_force_sleep(ipctl->pctl); |
| } |
| |
| int imx_pinctrl_resume(struct device *dev) |
| { |
| struct imx_pinctrl *ipctl = dev_get_drvdata(dev); |
| |
| if (!ipctl) |
| return -EINVAL; |
| |
| return pinctrl_force_default(ipctl->pctl); |
| } |