diff options
| -rw-r--r-- | drivers/pinctrl/pinctrl-tegra.c | 130 |
1 files changed, 18 insertions, 112 deletions
diff --git a/drivers/pinctrl/pinctrl-tegra.c b/drivers/pinctrl/pinctrl-tegra.c index 2fa9bc6cd7ab..637bcd341c7d 100644 --- a/drivers/pinctrl/pinctrl-tegra.c +++ b/drivers/pinctrl/pinctrl-tegra.c @@ -32,6 +32,7 @@ #include "core.h" #include "pinctrl-tegra.h" +#include "pinctrl-utils.h" struct tegra_pmx { struct device *dev; @@ -90,107 +91,6 @@ static void tegra_pinctrl_pin_dbg_show(struct pinctrl_dev *pctldev, } #endif -static int reserve_map(struct device *dev, struct pinctrl_map **map, - unsigned *reserved_maps, unsigned *num_maps, - unsigned reserve) -{ - unsigned old_num = *reserved_maps; - unsigned new_num = *num_maps + reserve; - struct pinctrl_map *new_map; - - if (old_num >= new_num) - return 0; - - new_map = krealloc(*map, sizeof(*new_map) * new_num, GFP_KERNEL); - if (!new_map) { - dev_err(dev, "krealloc(map) failed\n"); - return -ENOMEM; - } - - memset(new_map + old_num, 0, (new_num - old_num) * sizeof(*new_map)); - - *map = new_map; - *reserved_maps = new_num; - - return 0; -} - -static int add_map_mux(struct pinctrl_map **map, unsigned *reserved_maps, - unsigned *num_maps, const char *group, - const char *function) -{ - if (WARN_ON(*num_maps == *reserved_maps)) - return -ENOSPC; - - (*map)[*num_maps].type = PIN_MAP_TYPE_MUX_GROUP; - (*map)[*num_maps].data.mux.group = group; - (*map)[*num_maps].data.mux.function = function; - (*num_maps)++; - - return 0; -} - -static int add_map_configs(struct device *dev, struct pinctrl_map **map, - unsigned *reserved_maps, unsigned *num_maps, - const char *group, unsigned long *configs, - unsigned num_configs) -{ - unsigned long *dup_configs; - - if (WARN_ON(*num_maps == *reserved_maps)) - return -ENOSPC; - - dup_configs = kmemdup(configs, num_configs * sizeof(*dup_configs), - GFP_KERNEL); - if (!dup_configs) { - dev_err(dev, "kmemdup(configs) failed\n"); - return -ENOMEM; - } - - (*map)[*num_maps].type = PIN_MAP_TYPE_CONFIGS_GROUP; - (*map)[*num_maps].data.configs.group_or_pin = group; - (*map)[*num_maps].data.configs.configs = dup_configs; - (*map)[*num_maps].data.configs.num_configs = num_configs; - (*num_maps)++; - - return 0; -} - -static int add_config(struct device *dev, unsigned long **configs, - unsigned *num_configs, unsigned long config) -{ - unsigned old_num = *num_configs; - unsigned new_num = old_num + 1; - unsigned long *new_configs; - - new_configs = krealloc(*configs, sizeof(*new_configs) * new_num, - GFP_KERNEL); - if (!new_configs) { - dev_err(dev, "krealloc(configs) failed\n"); - return -ENOMEM; - } - - new_configs[old_num] = config; - - *configs = new_configs; - *num_configs = new_num; - - return 0; -} - -static void tegra_pinctrl_dt_free_map(struct pinctrl_dev *pctldev, - struct pinctrl_map *map, - unsigned num_maps) -{ - int i; - - for (i = 0; i < num_maps; i++) - if (map[i].type == PIN_MAP_TYPE_CONFIGS_GROUP) - kfree(map[i].data.configs.configs); - - kfree(map); -} - static const struct cfg_param { const char *property; enum tegra_pinconf_param param; @@ -212,12 +112,13 @@ static const struct cfg_param { {"nvidia,drive-type", TEGRA_PINCONF_PARAM_DRIVE_TYPE}, }; -static int tegra_pinctrl_dt_subnode_to_map(struct device *dev, +static int tegra_pinctrl_dt_subnode_to_map(struct pinctrl_dev *pctldev, struct device_node *np, struct pinctrl_map **map, unsigned *reserved_maps, unsigned *num_maps) { + struct device *dev = pctldev->dev; int ret, i; const char *function; u32 val; @@ -241,7 +142,8 @@ static int tegra_pinctrl_dt_subnode_to_map(struct device *dev, ret = of_property_read_u32(np, cfg_params[i].property, &val); if (!ret) { config = TEGRA_PINCONF_PACK(cfg_params[i].param, val); - ret = add_config(dev, &configs, &num_configs, config); + ret = pinctrl_utils_add_config(pctldev, &configs, + &num_configs, config); if (ret < 0) goto exit; /* EINVAL=missing, which is fine since it's optional */ @@ -263,22 +165,25 @@ static int tegra_pinctrl_dt_subnode_to_map(struct device *dev, } reserve *= ret; - ret = reserve_map(dev, map, reserved_maps, num_maps, reserve); + ret = pinctrl_utils_reserve_map(pctldev, map, reserved_maps, + num_maps, reserve); if (ret < 0) goto exit; of_property_for_each_string(np, "nvidia,pins", prop, group) { if (function) { - ret = add_map_mux(map, reserved_maps, num_maps, - group, function); + ret = pinctrl_utils_add_map_mux(pctldev, map, + reserved_maps, num_maps, group, + function); if (ret < 0) goto exit; } if (num_configs) { - ret = add_map_configs(dev, map, reserved_maps, - num_maps, group, configs, - num_configs); + ret = pinctrl_utils_add_map_configs(pctldev, map, + reserved_maps, num_maps, group, + configs, num_configs, + PIN_MAP_TYPE_CONFIGS_GROUP); if (ret < 0) goto exit; } @@ -305,10 +210,11 @@ static int tegra_pinctrl_dt_node_to_map(struct pinctrl_dev *pctldev, *num_maps = 0; for_each_child_of_node(np_config, np) { - ret = tegra_pinctrl_dt_subnode_to_map(pctldev->dev, np, map, + ret = tegra_pinctrl_dt_subnode_to_map(pctldev, np, map, &reserved_maps, num_maps); if (ret < 0) { - tegra_pinctrl_dt_free_map(pctldev, *map, *num_maps); + pinctrl_utils_dt_free_map(pctldev, *map, + *num_maps); return ret; } } @@ -324,7 +230,7 @@ static const struct pinctrl_ops tegra_pinctrl_ops = { .pin_dbg_show = tegra_pinctrl_pin_dbg_show, #endif .dt_node_to_map = tegra_pinctrl_dt_node_to_map, - .dt_free_map = tegra_pinctrl_dt_free_map, + .dt_free_map = pinctrl_utils_dt_free_map, }; static int tegra_pinctrl_get_funcs_count(struct pinctrl_dev *pctldev) |
