korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-26 05:34:13 +08:00
Code Issues Packages Projects Releases Wiki Activity

pinctrl: move group lookup to core

Browse Source 
Now also the core needs to look up pin groups so move the lookup
function there and expose it in the internal header.

Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2011-10-19 17:07:16 +02:00
parent b84e673f51
commit 7afde8baa8
3 changed files with 35 additions and 33 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

31
drivers/pinctrl/core.c
View File

@ -284,6 +284,37 @@ void pinctrl_remove_gpio_range(struct pinctrl_dev *pctldev,
mutex_unlock(&pctldev->gpio_ranges_lock);
}
/**
* pinctrl_get_group_selector() - returns the group selector for a group
* @pctldev: the pin controller handling the group
* @pin_group: the pin group to look up
*/
int pinctrl_get_group_selector(struct pinctrl_dev *pctldev,
const char *pin_group)
{
const struct pinctrl_ops *pctlops = pctldev->desc->pctlops;
unsigned group_selector = 0;
while (pctlops->list_groups(pctldev, group_selector) >= 0) {
const char *gname = pctlops->get_group_name(pctldev,
group_selector);
if (!strcmp(gname, pin_group)) {
dev_dbg(&pctldev->dev,
"found group selector %u for %s\n",
group_selector,
pin_group);
return group_selector;
}
group_selector++;
}
dev_err(&pctldev->dev, "does not have pin group %s\n",
pin_group);
return -EINVAL;
}
#ifdef CONFIG_DEBUG_FS
static int pinctrl_pins_show(struct seq_file *s, void *what)

2
drivers/pinctrl/core.h
View File

@ -69,3 +69,5 @@ struct pin_desc *pin_desc_get(struct pinctrl_dev *pctldev, int pin);
int pinctrl_get_device_gpio_range(unsigned gpio,
struct pinctrl_dev **outdev,
struct pinctrl_gpio_range **outrange);
int pinctrl_get_group_selector(struct pinctrl_dev *pctldev,
const char *pin_group);

35
drivers/pinctrl/pinmux.c
View File

@ -389,37 +389,6 @@ static void release_pins(struct pinctrl_dev *pctldev,
pin_free(pctldev, pins[i], false);
}
/**
* pinmux_get_group_selector() - returns the group selector for a group
* @pctldev: the pin controller handling the group
* @pin_group: the pin group to look up
*/
static int pinmux_get_group_selector(struct pinctrl_dev *pctldev,
const char *pin_group)
{
const struct pinctrl_ops *pctlops = pctldev->desc->pctlops;
unsigned group_selector = 0;
while (pctlops->list_groups(pctldev, group_selector) >= 0) {
const char *gname = pctlops->get_group_name(pctldev,
group_selector);
if (!strcmp(gname, pin_group)) {
dev_dbg(&pctldev->dev,
"found group selector %u for %s\n",
group_selector,
pin_group);
return group_selector;
}
group_selector++;
}
dev_err(&pctldev->dev, "does not have pin group %s\n",
pin_group);
return -EINVAL;
}
/**
* pinmux_check_pin_group() - check function and pin group combo
* @pctldev: device to check the pin group vs function for
@ -461,7 +430,7 @@ static int pinmux_check_pin_group(struct pinctrl_dev *pctldev,
return ret;
if (num_groups < 1)
return -EINVAL;
ret = pinmux_get_group_selector(pctldev, groups[0]);
ret = pinctrl_get_group_selector(pctldev, groups[0]);
if (ret < 0) {
dev_err(&pctldev->dev,
"function %s wants group %s but the pin "
@ -486,7 +455,7 @@ static int pinmux_check_pin_group(struct pinctrl_dev *pctldev,
"check if we have pin group %s on controller %s\n",
pin_group, pinctrl_dev_get_name(pctldev));
ret = pinmux_get_group_selector(pctldev, pin_group);
ret = pinctrl_get_group_selector(pctldev, pin_group);
if (ret < 0) {
dev_dbg(&pctldev->dev,
"%s does not support pin group %s with function %s\n",