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path: root/drivers/usb/gadget/fsl_mx3_udc.c
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Diffstat (limited to 'drivers/usb/gadget/fsl_mx3_udc.c')
-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 4bc2bf3d602e..20a802ecaa15 100644
--- a/drivers/usb/gadget/fsl_mx3_udc.c
+++ b/drivers/usb/gadget/fsl_mx3_udc.c
@@ -17,6 +17,8 @@
17#include <linux/fsl_devices.h> 17#include <linux/fsl_devices.h>
18#include <linux/platform_device.h> 18#include <linux/platform_device.h>
19 19
20#include <mach/hardware.h>
21
20static struct clk *mxc_ahb_clk; 22static struct clk *mxc_ahb_clk;
21static struct clk *mxc_usb_clk; 23static struct clk *mxc_usb_clk;
22 24
@@ -28,14 +30,16 @@ int fsl_udc_clk_init(struct platform_device *pdev)
28 30
29 pdata = pdev->dev.platform_data; 31 pdata = pdev->dev.platform_data;
30 32
31 mxc_ahb_clk = clk_get(&pdev->dev, "usb_ahb"); 33 if (!cpu_is_mx35()) {
32 if (IS_ERR(mxc_ahb_clk)) 34 mxc_ahb_clk = clk_get(&pdev->dev, "usb_ahb");
33 return PTR_ERR(mxc_ahb_clk); 35 if (IS_ERR(mxc_ahb_clk))
36 return PTR_ERR(mxc_ahb_clk);
34 37
35 ret = clk_enable(mxc_ahb_clk); 38 ret = clk_enable(mxc_ahb_clk);
36 if (ret < 0) { 39 if (ret < 0) {
37 dev_err(&pdev->dev, "clk_enable(\"usb_ahb\") failed\n"); 40 dev_err(&pdev->dev, "clk_enable(\"usb_ahb\") failed\n");
38 goto eenahb; 41 goto eenahb;
42 }
39 } 43 }
40 44
41 /* make sure USB_CLK is running at 60 MHz +/- 1000 Hz */ 45 /* make sure USB_CLK is running at 60 MHz +/- 1000 Hz */
@@ -50,6 +54,7 @@ int fsl_udc_clk_init(struct platform_device *pdev)
50 if (pdata->phy_mode != FSL_USB2_PHY_ULPI && 54 if (pdata->phy_mode != FSL_USB2_PHY_ULPI &&
51 (freq < 59999000 || freq > 60001000)) { 55 (freq < 59999000 || freq > 60001000)) {
52 dev_err(&pdev->dev, "USB_CLK=%lu, should be 60MHz\n", freq); 56 dev_err(&pdev->dev, "USB_CLK=%lu, should be 60MHz\n", freq);
57 ret = -EINVAL;
53 goto eclkrate; 58 goto eclkrate;
54 } 59 }
55 60
@@ -66,9 +71,11 @@ eclkrate:
66 clk_put(mxc_usb_clk); 71 clk_put(mxc_usb_clk);
67 mxc_usb_clk = NULL; 72 mxc_usb_clk = NULL;
68egusb: 73egusb:
69 clk_disable(mxc_ahb_clk); 74 if (!cpu_is_mx35())
75 clk_disable(mxc_ahb_clk);
70eenahb: 76eenahb:
71 clk_put(mxc_ahb_clk); 77 if (!cpu_is_mx35())
78 clk_put(mxc_ahb_clk);
72 return ret; 79 return ret;
73} 80}
74 81
@@ -90,6 +97,8 @@ void fsl_udc_clk_release(void)
90 clk_disable(mxc_usb_clk); 97 clk_disable(mxc_usb_clk);
91 clk_put(mxc_usb_clk); 98 clk_put(mxc_usb_clk);
92 } 99 }
93 clk_disable(mxc_ahb_clk); 100 if (!cpu_is_mx35()) {
94 clk_put(mxc_ahb_clk); 101 clk_disable(mxc_ahb_clk);
102 clk_put(mxc_ahb_clk);
103 }
95} 104}