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path: root/drivers/pinctrl/pinconf.c
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Diffstat (limited to 'drivers/pinctrl/pinconf.c')
-rw-r--r--drivers/pinctrl/pinconf.c178
1 files changed, 2 insertions, 176 deletions
diff --git a/drivers/pinctrl/pinconf.c b/drivers/pinctrl/pinconf.c
index c67c37e23dd7..e875f21a5908 100644
--- a/drivers/pinctrl/pinconf.c
+++ b/drivers/pinctrl/pinconf.c
@@ -75,98 +75,6 @@ int pin_config_get_for_pin(struct pinctrl_dev *pctldev, unsigned pin,
return ops->pin_config_get(pctldev, pin, config);
}
-/**
- * pin_config_get() - get the configuration of a single pin parameter
- * @dev_name: name of the pin controller device for this pin
- * @name: name of the pin to get the config for
- * @config: the config pointed to by this argument will be filled in with the
- * current pin state, it can be used directly by drivers as a numeral, or
- * it can be dereferenced to any struct.
- */
-int pin_config_get(const char *dev_name, const char *name,
- unsigned long *config)
-{
- struct pinctrl_dev *pctldev;
- int pin;
-
- pctldev = get_pinctrl_dev_from_devname(dev_name);
- if (!pctldev) {
- pin = -EINVAL;
- return pin;
- }
-
- mutex_lock(&pctldev->mutex);
-
- pin = pin_get_from_name(pctldev, name);
- if (pin < 0)
- goto unlock;
-
- pin = pin_config_get_for_pin(pctldev, pin, config);
-
-unlock:
- mutex_unlock(&pctldev->mutex);
- return pin;
-}
-EXPORT_SYMBOL(pin_config_get);
-
-static int pin_config_set_for_pin(struct pinctrl_dev *pctldev, unsigned pin,
- unsigned long config)
-{
- const struct pinconf_ops *ops = pctldev->desc->confops;
- int ret;
-
- if (!ops || !ops->pin_config_set) {
- dev_err(pctldev->dev, "cannot configure pin, missing "
- "config function in driver\n");
- return -EINVAL;
- }
-
- ret = ops->pin_config_set(pctldev, pin, config);
- if (ret) {
- dev_err(pctldev->dev,
- "unable to set pin configuration on pin %d\n", pin);
- return ret;
- }
-
- return 0;
-}
-
-/**
- * pin_config_set() - set the configuration of a single pin parameter
- * @dev_name: name of pin controller device for this pin
- * @name: name of the pin to set the config for
- * @config: the config in this argument will contain the desired pin state, it
- * can be used directly by drivers as a numeral, or it can be dereferenced
- * to any struct.
- */
-int pin_config_set(const char *dev_name, const char *name,
- unsigned long config)
-{
- struct pinctrl_dev *pctldev;
- int pin, ret;
-
- pctldev = get_pinctrl_dev_from_devname(dev_name);
- if (!pctldev) {
- ret = -EINVAL;
- return ret;
- }
-
- mutex_lock(&pctldev->mutex);
-
- pin = pin_get_from_name(pctldev, name);
- if (pin < 0) {
- ret = pin;
- goto unlock;
- }
-
- ret = pin_config_set_for_pin(pctldev, pin, config);
-
-unlock:
- mutex_unlock(&pctldev->mutex);
- return ret;
-}
-EXPORT_SYMBOL(pin_config_set);
-
int pin_config_group_get(const char *dev_name, const char *pin_group,
unsigned long *config)
{
@@ -204,88 +112,6 @@ unlock:
mutex_unlock(&pctldev->mutex);
return ret;
}
-EXPORT_SYMBOL(pin_config_group_get);
-
-int pin_config_group_set(const char *dev_name, const char *pin_group,
- unsigned long config)
-{
- struct pinctrl_dev *pctldev;
- const struct pinconf_ops *ops;
- const struct pinctrl_ops *pctlops;
- int selector;
- const unsigned *pins;
- unsigned num_pins;
- int ret;
- int i;
-
- pctldev = get_pinctrl_dev_from_devname(dev_name);
- if (!pctldev) {
- ret = -EINVAL;
- return ret;
- }
-
- mutex_lock(&pctldev->mutex);
-
- ops = pctldev->desc->confops;
- pctlops = pctldev->desc->pctlops;
-
- if (!ops || (!ops->pin_config_group_set && !ops->pin_config_set)) {
- dev_err(pctldev->dev, "cannot configure pin group, missing "
- "config function in driver\n");
- ret = -EINVAL;
- goto unlock;
- }
-
- selector = pinctrl_get_group_selector(pctldev, pin_group);
- if (selector < 0) {
- ret = selector;
- goto unlock;
- }
-
- ret = pctlops->get_group_pins(pctldev, selector, &pins, &num_pins);
- if (ret) {
- dev_err(pctldev->dev, "cannot configure pin group, error "
- "getting pins\n");
- goto unlock;
- }
-
- /*
- * If the pin controller supports handling entire groups we use that
- * capability.
- */
- if (ops->pin_config_group_set) {
- ret = ops->pin_config_group_set(pctldev, selector, config);
- /*
- * If the pin controller prefer that a certain group be handled
- * pin-by-pin as well, it returns -EAGAIN.
- */
- if (ret != -EAGAIN)
- goto unlock;
- }
-
- /*
- * If the controller cannot handle entire groups, we configure each pin
- * individually.
- */
- if (!ops->pin_config_set) {
- ret = 0;
- goto unlock;
- }
-
- for (i = 0; i < num_pins; i++) {
- ret = ops->pin_config_set(pctldev, pins[i], config);
- if (ret < 0)
- goto unlock;
- }
-
- ret = 0;
-
-unlock:
- mutex_unlock(&pctldev->mutex);
-
- return ret;
-}
-EXPORT_SYMBOL(pin_config_group_set);
int pinconf_map_to_setting(struct pinctrl_map const *map,
struct pinctrl_setting *setting)
@@ -610,7 +436,7 @@ static int pinconf_dbg_config_print(struct seq_file *s, void *d)
bool found = false;
unsigned long config;
- mutex_lock(&pctldev->mutex);
+ mutex_lock(&pinctrl_maps_mutex);
/* Parse the pinctrl map and look for the elected pin/state */
for_each_maps(maps_node, i, map) {
@@ -659,7 +485,7 @@ static int pinconf_dbg_config_print(struct seq_file *s, void *d)
confops->pin_config_config_dbg_show(pctldev, s, config);
exit:
- mutex_unlock(&pctldev->mutex);
+ mutex_unlock(&pinctrl_maps_mutex);
return 0;
}