usb: fsl_mxc_udc.c : Use clk_prepare_enable/clk_disable_unprepare

Prepare the clock before enabling it.

Cc: <linux-usb@vger.kernel.org>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>

diff --git a/drivers/usb/gadget/fsl_mxc_udc.c b/drivers/usb/gadget/fsl_mxc_udc.c
index dcbc0a2..f4b5109 100644 (file)
--- a/drivers/usb/gadget/fsl_mxc_udc.c
+++ b/drivers/usb/gadget/fsl_mxc_udc.c
@@ -40,7 +40,7 @@ int fsl_udc_clk_init(struct platform_device *pdev)
                if (IS_ERR(mxc_ahb_clk))
                        return PTR_ERR(mxc_ahb_clk);
 
-               ret = clk_enable(mxc_ahb_clk);
+               ret = clk_prepare_enable(mxc_ahb_clk);
                if (ret < 0) {
                        dev_err(&pdev->dev, "clk_enable(\"usb_ahb\") failed\n");
                        goto eenahb;
@@ -65,7 +65,7 @@ int fsl_udc_clk_init(struct platform_device *pdev)
                }
        }
 
-       ret = clk_enable(mxc_usb_clk);
+       ret = clk_prepare_enable(mxc_usb_clk);
        if (ret < 0) {
                dev_err(&pdev->dev, "clk_enable(\"usb_clk\") failed\n");
                goto eenusb;
@@ -79,7 +79,7 @@ eclkrate:
        mxc_usb_clk = NULL;
 egusb:
        if (!cpu_is_mx35())
-               clk_disable(mxc_ahb_clk);
+               clk_disable_unprepare(mxc_ahb_clk);
 eenahb:
        if (!cpu_is_mx35())
                clk_put(mxc_ahb_clk);
@@ -104,7 +104,7 @@ void fsl_udc_clk_finalize(struct platform_device *pdev)
 
        /* ULPI transceivers don't need usbpll */
        if (pdata->phy_mode == FSL_USB2_PHY_ULPI) {
-               clk_disable(mxc_usb_clk);
+               clk_disable_unprepare(mxc_usb_clk);
                clk_put(mxc_usb_clk);
                mxc_usb_clk = NULL;
        }
@@ -113,11 +113,11 @@ void fsl_udc_clk_finalize(struct platform_device *pdev)
 void fsl_udc_clk_release(void)
 {
        if (mxc_usb_clk) {
-               clk_disable(mxc_usb_clk);
+               clk_disable_unprepare(mxc_usb_clk);
                clk_put(mxc_usb_clk);
        }
        if (!cpu_is_mx35()) {
-               clk_disable(mxc_ahb_clk);
+               clk_disable_unprepare(mxc_ahb_clk);
                clk_put(mxc_ahb_clk);
        }
 }