pinctrl: stm32: update .bind callback

Update .bind callback in order to bind all pinctrl subnodes
with "gpio-controller" property to gpio_stm32 driver.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@st.com>

diff --git a/drivers/pinctrl/pinctrl_stm32.c b/drivers/pinctrl/pinctrl_stm32.c
index a59b8ca..cdbe463 100644 (file)
--- a/drivers/pinctrl/pinctrl_stm32.c
+++ b/drivers/pinctrl/pinctrl_stm32.c
@@ -1,5 +1,6 @@
 #include <common.h>
 #include <dm.h>
+#include <dm/lists.h>
 #include <dm/pinctrl.h>
 #include <hwspinlock.h>
 #include <asm/arch/gpio.h>
@@ -364,6 +365,35 @@ static int stm32_pinctrl_config(int offset)
        return 0;
 }
 
+static int stm32_pinctrl_bind(struct udevice *dev)
+{
+       ofnode node;
+       const char *name;
+       int ret;
+
+       dev_for_each_subnode(node, dev) {
+               debug("%s: bind %s\n", __func__, ofnode_get_name(node));
+
+               ofnode_get_property(node, "gpio-controller", &ret);
+               if (ret < 0)
+                       continue;
+               /* Get the name of each gpio node */
+               name = ofnode_get_name(node);
+               if (!name)
+                       return -EINVAL;
+
+               /* Bind each gpio node */
+               ret = device_bind_driver_to_node(dev, "gpio_stm32",
+                                                name, node, NULL);
+               if (ret)
+                       return ret;
+
+               debug("%s: bind %s\n", __func__, name);
+       }
+
+       return 0;
+}
+
 #if CONFIG_IS_ENABLED(PINCTRL_FULL)
 static int stm32_pinctrl_set_state(struct udevice *dev, struct udevice *config)
 {
@@ -433,7 +463,7 @@ U_BOOT_DRIVER(pinctrl_stm32) = {
        .id                     = UCLASS_PINCTRL,
        .of_match               = stm32_pinctrl_ids,
        .ops                    = &stm32_pinctrl_ops,
-       .bind                   = dm_scan_fdt_dev,
+       .bind                   = stm32_pinctrl_bind,
        .probe                  = stm32_pinctrl_probe,
        .priv_auto_alloc_size   = sizeof(struct stm32_pinctrl_priv),
 };