linux-kernel - [PATCH v8 02/14] mfd: omap-usb-host: Always fail on clk

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Message-ID: <1392896409-5101-3-git-send-email-rogerq@ti.com>
Date:	Thu, 20 Feb 2014 13:39:57 +0200
From:	Roger Quadros <rogerq@...com>
To:	<tony@...mide.com>, <bcousson@...libre.com>, <lee.jones@...aro.org>
CC:	<balbi@...com>, <nm@...com>, <khilman@...aro.org>,
	<linux-omap@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
	<linux-usb@...r.kernel.org>, Roger Quadros <rogerq@...com>,
	Samuel Ortiz <sameo@...ux.intel.com>
Subject: [PATCH v8 02/14] mfd: omap-usb-host: Always fail on clk_get() error

Be more strict and always fail on clk_get() error.

For OMAP3 platforms, get the 120MHz EHCI clock by its proper name
'usbhost_120m_fck' instead of its alias 'ehci_logic_fck'.

CC: Lee Jones <lee.jones@...aro.org>
CC: Samuel Ortiz <sameo@...ux.intel.com>
Signed-off-by: Roger Quadros <rogerq@...com>
---
 drivers/mfd/omap-usb-host.c | 65 +++++++++++++++++++++++++++++----------------
 1 file changed, 42 insertions(+), 23 deletions(-)

diff --git a/drivers/mfd/omap-usb-host.c b/drivers/mfd/omap-usb-host.c
index c63bfdf..865c276 100644
--- a/drivers/mfd/omap-usb-host.c
+++ b/drivers/mfd/omap-usb-host.c
@@ -692,10 +692,12 @@ static int usbhs_omap_probe(struct platform_device *pdev)
 
 		if (need_logic_fck) {
 			omap->ehci_logic_fck = devm_clk_get(dev,
-							    "ehci_logic_fck");
+							    "usbhost_120m_fck");
 			if (IS_ERR(omap->ehci_logic_fck)) {
 				ret = PTR_ERR(omap->ehci_logic_fck);
-				dev_dbg(dev, "ehci_logic_fck failed:%d\n", ret);
+				dev_err(dev, "usbhost_120m_fck failed:%d\n",
+					ret);
+				goto err_mem;
 			}
 		}
 		goto initialize;
@@ -749,51 +751,68 @@ static int usbhs_omap_probe(struct platform_device *pdev)
 		 * them
 		 */
 		omap->utmi_clk[i] = devm_clk_get(dev, clkname);
-		if (IS_ERR(omap->utmi_clk[i]))
-			dev_dbg(dev, "Failed to get clock : %s : %ld\n",
-				clkname, PTR_ERR(omap->utmi_clk[i]));
+		if (IS_ERR(omap->utmi_clk[i])) {
+			ret = PTR_ERR(omap->utmi_clk[i]);
+			dev_err(dev, "Failed to get clock : %s : %d\n",
+				clkname, ret);
+			goto err_mem;
+		}
 
 		snprintf(clkname, sizeof(clkname),
 				"usb_host_hs_hsic480m_p%d_clk", i + 1);
 		omap->hsic480m_clk[i] = devm_clk_get(dev, clkname);
-		if (IS_ERR(omap->hsic480m_clk[i]))
-			dev_dbg(dev, "Failed to get clock : %s : %ld\n",
-				clkname, PTR_ERR(omap->hsic480m_clk[i]));
+		if (IS_ERR(omap->hsic480m_clk[i])) {
+			ret = PTR_ERR(omap->hsic480m_clk[i]);
+			dev_err(dev, "Failed to get clock : %s : %d\n",
+				clkname, ret);
+			goto err_mem;
+		}
 
 		snprintf(clkname, sizeof(clkname),
 				"usb_host_hs_hsic60m_p%d_clk", i + 1);
 		omap->hsic60m_clk[i] = devm_clk_get(dev, clkname);
-		if (IS_ERR(omap->hsic60m_clk[i]))
-			dev_dbg(dev, "Failed to get clock : %s : %ld\n",
-				clkname, PTR_ERR(omap->hsic60m_clk[i]));
+		if (IS_ERR(omap->hsic60m_clk[i])) {
+			ret = PTR_ERR(omap->hsic60m_clk[i]);
+			dev_err(dev, "Failed to get clock : %s : %d\n",
+				clkname, ret);
+			goto err_mem;
+		}
 	}
 
 	if (is_ehci_phy_mode(pdata->port_mode[0])) {
 		ret = clk_set_parent(omap->utmi_p1_gfclk,
 					omap->xclk60mhsp1_ck);
-		if (ret != 0)
-			dev_dbg(dev, "xclk60mhsp1_ck set parent failed: %d\n",
-					ret);
+		if (ret != 0) {
+			dev_err(dev, "xclk60mhsp1_ck set parent failed: %d\n",
+				ret);
+			goto err_mem;
+		}
 	} else if (is_ehci_tll_mode(pdata->port_mode[0])) {
 		ret = clk_set_parent(omap->utmi_p1_gfclk,
 					omap->init_60m_fclk);
-		if (ret != 0)
-			dev_dbg(dev, "P0 init_60m_fclk set parent failed: %d\n",
-					ret);
+		if (ret != 0) {
+			dev_err(dev, "P0 init_60m_fclk set parent failed: %d\n",
+				ret);
+			goto err_mem;
+		}
 	}
 
 	if (is_ehci_phy_mode(pdata->port_mode[1])) {
 		ret = clk_set_parent(omap->utmi_p2_gfclk,
 					omap->xclk60mhsp2_ck);
-		if (ret != 0)
-			dev_dbg(dev, "xclk60mhsp2_ck set parent failed: %d\n",
-					ret);
+		if (ret != 0) {
+			dev_err(dev, "xclk60mhsp2_ck set parent failed: %d\n",
+				ret);
+			goto err_mem;
+		}
 	} else if (is_ehci_tll_mode(pdata->port_mode[1])) {
 		ret = clk_set_parent(omap->utmi_p2_gfclk,
 						omap->init_60m_fclk);
-		if (ret != 0)
-			dev_dbg(dev, "P1 init_60m_fclk set parent failed: %d\n",
-					ret);
+		if (ret != 0) {
+			dev_err(dev, "P1 init_60m_fclk set parent failed: %d\n",
+				ret);
+			goto err_mem;
+		}
 	}
 
 initialize:
-- 
1.8.3.2

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