[U-Boot] [PATCH 2/4] pinctrl: stm32: update .bind callback
Patrice Chotard
patrice.chotard at st.com
Fri Jun 21 13:39:23 UTC 2019
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 at st.com>
---
drivers/pinctrl/pinctrl_stm32.c | 32 +++++++++++++++++++++++++++++++-
1 file changed, 31 insertions(+), 1 deletion(-)
diff --git a/drivers/pinctrl/pinctrl_stm32.c b/drivers/pinctrl/pinctrl_stm32.c
index 43dbdd9d6a..e2e7be01ed 100644
--- 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),
};
--
2.17.1
More information about the U-Boot
mailing list