diff options
Diffstat (limited to 'drivers/pinctrl/core.c')
| -rw-r--r-- | drivers/pinctrl/core.c | 39 |
1 files changed, 31 insertions, 8 deletions
diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c index 6e6825d17a1d..a4ac87c8b4f8 100644 --- a/drivers/pinctrl/core.c +++ b/drivers/pinctrl/core.c @@ -160,7 +160,7 @@ int pin_get_from_name(struct pinctrl_dev *pctldev, const char *name) } /** - * pin_get_name_from_id() - look up a pin name from a pin id + * pin_get_name() - look up a pin name from a pin id * @pctldev: the pin control device to lookup the pin on * @pin: pin number/id to look up */ @@ -1258,7 +1258,7 @@ static int pinctrl_commit_state(struct pinctrl *p, struct pinctrl_state *state) p->state = NULL; - /* Apply all the settings for the new state */ + /* Apply all the settings for the new state - pinmux first */ list_for_each_entry(setting, &state->settings, node) { switch (setting->type) { case PIN_MAP_TYPE_MUX_GROUP: @@ -1266,6 +1266,29 @@ static int pinctrl_commit_state(struct pinctrl *p, struct pinctrl_state *state) break; case PIN_MAP_TYPE_CONFIGS_PIN: case PIN_MAP_TYPE_CONFIGS_GROUP: + ret = 0; + break; + default: + ret = -EINVAL; + break; + } + + if (ret < 0) + goto unapply_new_state; + + /* Do not link hogs (circular dependency) */ + if (p != setting->pctldev->p) + pinctrl_link_add(setting->pctldev, p->dev); + } + + /* Apply all the settings for the new state - pinconf after */ + list_for_each_entry(setting, &state->settings, node) { + switch (setting->type) { + case PIN_MAP_TYPE_MUX_GROUP: + ret = 0; + break; + case PIN_MAP_TYPE_CONFIGS_PIN: + case PIN_MAP_TYPE_CONFIGS_GROUP: ret = pinconf_apply_setting(setting); break; default: @@ -1892,11 +1915,11 @@ static void pinctrl_init_device_debugfs(struct pinctrl_dev *pctldev) dev_name(pctldev->dev)); return; } - debugfs_create_file("pins", S_IFREG | S_IRUGO, + debugfs_create_file("pins", 0444, device_root, pctldev, &pinctrl_pins_fops); - debugfs_create_file("pingroups", S_IFREG | S_IRUGO, + debugfs_create_file("pingroups", 0444, device_root, pctldev, &pinctrl_groups_fops); - debugfs_create_file("gpio-ranges", S_IFREG | S_IRUGO, + debugfs_create_file("gpio-ranges", 0444, device_root, pctldev, &pinctrl_gpioranges_fops); if (pctldev->desc->pmxops) pinmux_init_device_debugfs(device_root, pctldev); @@ -1918,11 +1941,11 @@ static void pinctrl_init_debugfs(void) return; } - debugfs_create_file("pinctrl-devices", S_IFREG | S_IRUGO, + debugfs_create_file("pinctrl-devices", 0444, debugfs_root, NULL, &pinctrl_devices_fops); - debugfs_create_file("pinctrl-maps", S_IFREG | S_IRUGO, + debugfs_create_file("pinctrl-maps", 0444, debugfs_root, NULL, &pinctrl_maps_fops); - debugfs_create_file("pinctrl-handles", S_IFREG | S_IRUGO, + debugfs_create_file("pinctrl-handles", 0444, debugfs_root, NULL, &pinctrl_fops); } |