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pinctrl: cherryview: add handlers for pin_config_group_get/set 

Pin config get/set handlers for pin groups were previously not
implemented by this driver.  The pin_config_group_set is
particularly useful for applying a common config setting to all
pins in a specified group with a single call, without the caller
needing to reference each individual pin by name.

Signed-off-by: Dan O'Donovan <dan@emutex.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Dan O'Donovan 2016-06-10 13:23:36 +01:00 committed by Linus Walleij
parent ccdf81d08d
commit 77401d7fdf
1 changed files with 42 additions and 0 deletions
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42
drivers/pinctrl/intel/pinctrl-cherryview.c
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@ -1176,10 +1176,52 @@ static int chv_config_set(struct pinctrl_dev *pctldev, unsigned pin,
return 0;
}
static int chv_config_group_get(struct pinctrl_dev *pctldev,
unsigned int group,
unsigned long *config)
{
const unsigned int *pins;
unsigned int npins;
int ret;
ret = chv_get_group_pins(pctldev, group, &pins, &npins);
if (ret)
return ret;
ret = chv_config_get(pctldev, pins[0], config);
if (ret)
return ret;
return 0;
}
static int chv_config_group_set(struct pinctrl_dev *pctldev,
unsigned int group, unsigned long *configs,
unsigned int num_configs)
{
const unsigned int *pins;
unsigned int npins;
int i, ret;
ret = chv_get_group_pins(pctldev, group, &pins, &npins);
if (ret)
return ret;
for (i = 0; i < npins; i++) {
ret = chv_config_set(pctldev, pins[i], configs, num_configs);
if (ret)
return ret;
}
return 0;
}
static const struct pinconf_ops chv_pinconf_ops = {
.is_generic = true,
.pin_config_set = chv_config_set,
.pin_config_get = chv_config_get,
.pin_config_group_get = chv_config_group_get,
.pin_config_group_set = chv_config_group_set,
};
static struct pinctrl_desc chv_pinctrl_desc = {