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path: root/drivers/usb
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Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/gadget/fsl_mx3_udc.c31
1 files changed, 20 insertions, 11 deletions
diff --git a/drivers/usb/gadget/fsl_mx3_udc.c b/drivers/usb/gadget/fsl_mx3_udc.c
index 4bc2bf3d602..20a802ecaa1 100644
--- a/drivers/usb/gadget/fsl_mx3_udc.c
+++ b/drivers/usb/gadget/fsl_mx3_udc.c
@@ -17,6 +17,8 @@
#include <linux/fsl_devices.h>
#include <linux/platform_device.h>
+#include <mach/hardware.h>
+
static struct clk *mxc_ahb_clk;
static struct clk *mxc_usb_clk;
@@ -28,14 +30,16 @@ int fsl_udc_clk_init(struct platform_device *pdev)
pdata = pdev->dev.platform_data;
- mxc_ahb_clk = clk_get(&pdev->dev, "usb_ahb");
- if (IS_ERR(mxc_ahb_clk))
- return PTR_ERR(mxc_ahb_clk);
+ if (!cpu_is_mx35()) {
+ mxc_ahb_clk = clk_get(&pdev->dev, "usb_ahb");
+ if (IS_ERR(mxc_ahb_clk))
+ return PTR_ERR(mxc_ahb_clk);
- ret = clk_enable(mxc_ahb_clk);
- if (ret < 0) {
- dev_err(&pdev->dev, "clk_enable(\"usb_ahb\") failed\n");
- goto eenahb;
+ ret = clk_enable(mxc_ahb_clk);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "clk_enable(\"usb_ahb\") failed\n");
+ goto eenahb;
+ }
}
/* make sure USB_CLK is running at 60 MHz +/- 1000 Hz */
@@ -50,6 +54,7 @@ int fsl_udc_clk_init(struct platform_device *pdev)
if (pdata->phy_mode != FSL_USB2_PHY_ULPI &&
(freq < 59999000 || freq > 60001000)) {
dev_err(&pdev->dev, "USB_CLK=%lu, should be 60MHz\n", freq);
+ ret = -EINVAL;
goto eclkrate;
}
@@ -66,9 +71,11 @@ eclkrate:
clk_put(mxc_usb_clk);
mxc_usb_clk = NULL;
egusb:
- clk_disable(mxc_ahb_clk);
+ if (!cpu_is_mx35())
+ clk_disable(mxc_ahb_clk);
eenahb:
- clk_put(mxc_ahb_clk);
+ if (!cpu_is_mx35())
+ clk_put(mxc_ahb_clk);
return ret;
}
@@ -90,6 +97,8 @@ void fsl_udc_clk_release(void)
clk_disable(mxc_usb_clk);
clk_put(mxc_usb_clk);
}
- clk_disable(mxc_ahb_clk);
- clk_put(mxc_ahb_clk);
+ if (!cpu_is_mx35()) {
+ clk_disable(mxc_ahb_clk);
+ clk_put(mxc_ahb_clk);
+ }
}