commit 5c5992cb90cf9ca4d51e38d9a95a13c293904df5
author Simon Glass <sjg@chromium.org> Thu Jan 21 13:57:11 2021 -0700
committer Simon Glass <sjg@chromium.org> Sat Jan 30 14:25:41 2021 -0700
tree 359f3e01a710df208a34fb25a330330ec2936610
parent ef79ef21a85272f52be58089a96bc1299aa04458

clk: Add debugging for return values

Use the log_msg_ret() mechanism to get error-return information when
clocks fail to probe, etc.

Signed-off-by: Simon Glass <sjg@chromium.org>

drivers/clk/clk-uclass.c

diff --git a/drivers/clk/clk-uclass.c b/drivers/clk/clk-uclass.c
index b750567..d5c4e3c 100644
--- a/drivers/clk/clk-uclass.c
+++ b/drivers/clk/clk-uclass.c
@@ -83,7 +83,7 @@
 	if (ret) {
 		debug("%s: uclass_get_device_by_of_offset failed: err=%d\n",
 		      __func__, ret);
-		return ret;
+		return log_msg_ret("get", ret);
 	}
 
 	clk->dev = dev_clk;
@@ -96,14 +96,15 @@
 		ret = clk_of_xlate_default(clk, args);
 	if (ret) {
 		debug("of_xlate() failed: %d\n", ret);
-		return ret;
+		return log_msg_ret("xlate", ret);
 	}
 
 	return clk_request(dev_clk, clk);
 err:
 	debug("%s: Node '%s', property '%s', failed to request CLK index %d: %d\n",
 	      __func__, ofnode_get_name(node), list_name, index, ret);
-	return ret;
+
+	return log_msg_ret("prop", ret);
 }
 
 static int clk_get_by_indexed_prop(struct udevice *dev, const char *prop_name,
@@ -122,7 +123,7 @@
 	if (ret) {
 		debug("%s: fdtdec_parse_phandle_with_args failed: err=%d\n",
 		      __func__, ret);
-		return ret;
+		return log_ret(ret);
 	}
 
 
@@ -470,6 +471,7 @@
 ulong clk_get_rate(struct clk *clk)
 {
 	const struct clk_ops *ops;
+	int ret;
 
 	debug("%s(clk=%p)\n", __func__, clk);
 	if (!clk_valid(clk))
@@ -479,7 +481,11 @@
 	if (!ops->get_rate)
 		return -ENOSYS;
 
-	return ops->get_rate(clk);
+	ret = ops->get_rate(clk);
+	if (ret)
+		return log_ret(ret);
+
+	return 0;
 }
 
 struct clk *clk_get_parent(struct clk *clk)