[linux-yocto] [yocto][PATCH] mfd: omap-usb-host: Don't spam console on clk_set_parent failure

[Simarpreet Singh]

From: Roger Quadros <rogerq at ti.com>

commit a8c4e9e1118f0a12e3a9524d8d597487d7e3476d upstream

clk_set_parent is expected to fail on OMAP3 platforms. We don't
consider that as fatal so don't spam console.

Signed-off-by: Roger Quadros <rogerq at ti.com>
Reviewed-by: Felipe Balbi <balbi at ti.com>
[SS:  minor updates to context]
Signed-off-by: Simarpreet Singh <simarpreet.singh at windriver.com>
---
yocto-bugfix: https://bugzilla.yoctoproject.org/show_bug.cgi?id=3936

This patch fixes the error messages in the kernel-ring-buffer at bootup.
The messages are expected as on OMAP3, clk_set_parent fails. The messages
shouldn't be flagged as errors but instead should be sent to dev_dbg.

More Info: https://lkml.org/lkml/2013/1/16/297

Testing was done by re-compiling the kernel and doing: 
dmesg | grep error, as the bugrepoter had suggested.

 drivers/mfd/omap-usb-host.c |   18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/mfd/omap-usb-host.c b/drivers/mfd/omap-usb-host.c
index 7e96bb2..e287897 100644
--- a/drivers/mfd/omap-usb-host.c
+++ b/drivers/mfd/omap-usb-host.c
@@ -699,32 +699,32 @@ static int __devinit usbhs_omap_probe(struct platform_device *pdev)
 	}
 
 	if (is_ehci_phy_mode(pdata->port_mode[0])) {
-		/* for OMAP3 , the clk set paretn fails */
+		/* for OMAP3, clk_set_parent fails */
 		ret = clk_set_parent(omap->utmi_p1_fck,
 					omap->xclk60mhsp1_ck);
 		if (ret != 0)
-			dev_err(dev, "xclk60mhsp1_ck set parent"
-				"failed error:%d\n", ret);
+			dev_dbg(dev, "xclk60mhsp1_ck set parent failed: %d\n",
+					ret);
 	} else if (is_ehci_tll_mode(pdata->port_mode[0])) {
 		ret = clk_set_parent(omap->utmi_p1_fck,
 					omap->init_60m_fclk);
 		if (ret != 0)
-			dev_err(dev, "init_60m_fclk set parent"
-				"failed error:%d\n", ret);
+			dev_dbg(dev, "P0 init_60m_fclk set parent failed: %d\n",
+					ret);
 	}
 
 	if (is_ehci_phy_mode(pdata->port_mode[1])) {
 		ret = clk_set_parent(omap->utmi_p2_fck,
 					omap->xclk60mhsp2_ck);
 		if (ret != 0)
-			dev_err(dev, "xclk60mhsp2_ck set parent"
-					"failed error:%d\n", ret);
+			dev_dbg(dev, "xclk60mhsp2_ck set parent failed: %d\n",
+					ret);
 	} else if (is_ehci_tll_mode(pdata->port_mode[1])) {
 		ret = clk_set_parent(omap->utmi_p2_fck,
 						omap->init_60m_fclk);
 		if (ret != 0)
-			dev_err(dev, "init_60m_fclk set parent"
-				"failed error:%d\n", ret);
+			dev_dbg(dev, "P1 init_60m_fclk set parent failed: %d\n",
+					ret);
 	}
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "uhh");
-- 
1.7.9.7