From: Simon Glass <sjg@chromium.org>
Date: Thu, 21 Jan 2021 20:57:11 +0000 (-0700)
Subject: clk: Add debugging for return values
X-Git-Url: http://git.dujemihanovic.xyz/%7B%7B%20%24style.Permalink%20%7D%7D?a=commitdiff_plain;h=5c5992cb90cf9ca4d51e38d9a95a13c293904df5;p=u-boot.git

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>
---

diff --git a/drivers/clk/clk-uclass.c b/drivers/clk/clk-uclass.c
index b75056718b..d5c4e3cbe5 100644
--- a/drivers/clk/clk-uclass.c
+++ b/drivers/clk/clk-uclass.c
@@ -83,7 +83,7 @@ static int clk_get_by_index_tail(int ret, ofnode node,
 	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 @@ static int clk_get_by_index_tail(int ret, ofnode node,
 		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 @@ static int clk_get_by_indexed_prop(struct udevice *dev, const char *prop_name,
 	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 @@ int clk_free(struct clk *clk)
 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 @@ ulong clk_get_rate(struct clk *clk)
 	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)