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pinctrl: single: add get_pin_name operation

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It returns the name of the requested pin.

Signed-off-by: Dario Binacchi <dariobin@libero.it>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Dario Binacchi 2021-04-11 09:39:48 +02:00 committed by Lokesh Vutla
parent 1dd7ae20de
commit 0b12162910
1 changed files with 16 additions and 0 deletions
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16
drivers/pinctrl/pinctrl-single.c
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@ -30,10 +30,12 @@ struct single_pdata {
* struct single_priv - private data
* @bits_per_pin: number of bits per pin
* @npins: number of selectable pins
* @pin_name: temporary buffer to store the pin name
*/
struct single_priv {
unsigned int bits_per_pin;
unsigned int npins;
char pin_name[PINNAME_SIZE];
};
/**
@ -204,6 +206,19 @@ static int single_set_state(struct udevice *dev,
return len;
}
static const char *single_get_pin_name(struct udevice *dev,
unsigned int selector)
{
struct single_priv *priv = dev_get_priv(dev);
if (selector >= priv->npins)
snprintf(priv->pin_name, PINNAME_SIZE, "Error");
else
snprintf(priv->pin_name, PINNAME_SIZE, "PIN%u", selector);
return priv->pin_name;
}
static int single_get_pins_count(struct udevice *dev)
{
struct single_priv *priv = dev_get_priv(dev);
@ -279,6 +294,7 @@ static int single_of_to_plat(struct udevice *dev)
const struct pinctrl_ops single_pinctrl_ops = {
.get_pins_count = single_get_pins_count,
.get_pin_name = single_get_pin_name,
.set_state = single_set_state,
};