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

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>

diff --git a/drivers/pinctrl/pinctrl_stm32.c b/drivers/pinctrl/pinctrl_stm32.c
index 990cd19..b755fa4 100644 (file)
--- a/drivers/pinctrl/pinctrl_stm32.c
+++ b/drivers/pinctrl/pinctrl_stm32.c
@@ -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;