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pinctrl: starfive: Add .get_function ops for the gpio driver

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Support getting direction of gpio.

Signed-off-by: Hal Feng <hal.feng@starfivetech.com>
This commit is contained in:
Hal Feng 2023-03-28 15:09:02 +08:00
parent bf37dcc538
commit e403bfb4a2
1 changed files with 16 additions and 0 deletions
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16
drivers/pinctrl/starfive/pinctrl-starfive.c
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@ -275,6 +275,21 @@ const struct pinctrl_ops starfive_pinctrl_ops = {
.pinconf_set = starfive_pinconf_set,
};
static int starfive_gpio_get_direction(struct udevice *dev, unsigned int off)
{
struct udevice *pdev = dev->parent;
struct starfive_pinctrl_priv *priv = dev_get_priv(pdev);
struct starfive_pinctrl_soc_info *info = priv->info;
unsigned int offset = 4 * (off / 4);
unsigned int shift = 8 * (off % 4);
u32 doen = readl(priv->base + info->doen_reg_base + offset);
doen = (doen >> shift) & info->doen_mask;
return doen == GPOEN_ENABLE ? GPIOF_OUTPUT : GPIOF_INPUT;
}
static int starfive_gpio_direction_input(struct udevice *dev, unsigned int off)
{
struct udevice *pdev = dev->parent;
@ -365,6 +380,7 @@ static int starfive_gpio_probe(struct udevice *dev)
}
static const struct dm_gpio_ops starfive_gpio_ops = {
.get_function = starfive_gpio_get_direction,
.direction_input = starfive_gpio_direction_input,
.direction_output = starfive_gpio_direction_output,
.get_value = starfive_gpio_get_value,