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pinctrl: pinctrl_stm32: Populate uc_priv->name[] with pinmux node's name

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Populate uc_priv->name[] with pinmux node's name in order to indicate
the pinmuxing's name in case GPIO is configured in alternate.

For example, for STM32 SoC's based platform, "gpio status" command
output :

  before
    Bank GPIOZ:
      GPIOZ0: unused : 0 [ ]
      GPIOZ1: unused : 0 [ ]
      GPIOZ2: unused : 0 [ ]
      GPIOZ3: unused : 0 [ ]
      GPIOZ4: func
      GPIOZ5: func
      GPIOZ6: unused : 0 [ ]
      GPIOZ7: unused : 0 [ ]
      GPIOZ8: unknown
      GPIOZ9: unknown
      GPIOZ10: unknown
      GPIOZ11: unknown
      GPIOZ12: unknown
      GPIOZ13: unknown
      GPIOZ14: unknown
      GPIOZ15: unknown

  After
    Bank GPIOZ:
      GPIOZ0: unused : 0 [ ]
      GPIOZ1: unused : 0 [ ]
      GPIOZ2: unused : 0 [ ]
      GPIOZ3: unused : 0 [ ]
      GPIOZ4: func i2c4-0
      GPIOZ5: func i2c4-0
      GPIOZ6: unused : 0 [ ]
      GPIOZ7: unused : 0 [ ]
      GPIOZ8: unknown
      GPIOZ9: unknown
      GPIOZ10: unknown
      GPIOZ11: unknown
      GPIOZ12: unknown
      GPIOZ13: unknown
      GPIOZ14: unknown
      GPIOZ15: unknown

Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
This commit is contained in:
Patrice Chotard 2022-08-30 14:09:13 +02:00 • committed by Tom Rini
parent a32920897a
commit 2c38f7c318
1 changed files with 6 additions and 2 deletions
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8
drivers/pinctrl/pinctrl_stm32.c
View file

@ -257,10 +257,12 @@ static int stm32_pinctrl_probe(struct udevice *dev)
return 0;
}
static int stm32_gpio_config(struct gpio_desc *desc,
static int stm32_gpio_config(ofnode node,
struct gpio_desc *desc,
const struct stm32_gpio_ctl *ctl)
{
struct stm32_gpio_priv *priv = dev_get_priv(desc->dev);
struct gpio_dev_priv *uc_priv = dev_get_uclass_priv(desc->dev);
struct stm32_gpio_regs *regs = priv->regs;
struct stm32_pinctrl_priv *ctrl_priv;
int ret;
@ -291,6 +293,8 @@ static int stm32_gpio_config(struct gpio_desc *desc,
index = desc->offset;
clrsetbits_le32(&regs->otyper, OTYPE_MSK << index, ctl->otype << index);
uc_priv->name[desc->offset] = strdup(ofnode_get_name(node));
hwspinlock_unlock(&ctrl_priv->hws);
return 0;
@ -385,7 +389,7 @@ static int stm32_pinctrl_config(ofnode node)
if (rv)
return rv;
desc.offset = gpio_dsc.pin;
rv = stm32_gpio_config(&desc, &gpio_ctl);
rv = stm32_gpio_config(node, &desc, &gpio_ctl);
log_debug("rv = %d\n\n", rv);
if (rv)
return rv;