[RESEND PATCH 2/2] dm: add debug message when failed to select the default pinctrl

[Patrick Delaunay]

Add a message on probe in driver model core when the default
pinctrl selection failed.

This message is displayed only when the pinctrl API is
implemented, i.e. when result is not ENOSYS.

Signed-off-by: Patrick Delaunay <patrick.delaunay at foss.st.com>
Reviewed-by: Simon Glass <sjg at chromium.org>
---

 drivers/core/device.c | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/drivers/core/device.c b/drivers/core/device.c
index efd07176e3..f3c35ad20c 100644
--- a/drivers/core/device.c
+++ b/drivers/core/device.c
@@ -533,8 +533,12 @@ int device_probe(struct udevice *dev)
 	 * is set just above. However, the PCI bus' probe() method and
 	 * associated uclass methods have not yet been called.
 	 */
-	if (dev->parent && device_get_uclass_id(dev) != UCLASS_PINCTRL)
-		pinctrl_select_state(dev, "default");
+	if (dev->parent && device_get_uclass_id(dev) != UCLASS_PINCTRL) {
+		ret = pinctrl_select_state(dev, "default");
+		if (ret && ret != -ENOSYS)
+			log_debug("Device '%s' failed to configure default pinctrl: %d (%s)\n",
+				  dev->name, ret, errno_str(ret));
+	}
 
 	if (CONFIG_IS_ENABLED(POWER_DOMAIN) && dev->parent &&
 	    (device_get_uclass_id(dev) != UCLASS_POWER_DOMAIN) &&
@@ -586,8 +590,12 @@ int device_probe(struct udevice *dev)
 	if (ret)
 		goto fail_uclass;
 
-	if (dev->parent && device_get_uclass_id(dev) == UCLASS_PINCTRL)
-		pinctrl_select_state(dev, "default");
+	if (dev->parent && device_get_uclass_id(dev) == UCLASS_PINCTRL) {
+		ret = pinctrl_select_state(dev, "default");
+		if (ret && ret != -ENOSYS)
+			log_debug("Device '%s' failed to configure default pinctrl: %d (%s)\n",
+				  dev->name, ret, errno_str(ret));
+	}
 
 	return 0;
 fail_uclass:
-- 
2.25.1