diff options
| author | Sascha Hauer <s.hauer@pengutronix.de> | 2010-02-04 14:40:59 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2010-02-04 15:55:09 +0100 |
| commit | ba593e5966440deec8684863e0cba9b502c4a377 (patch) | |
| tree | b0091c3cd9cd87045e90feb9b1bf295fa410dff0 /drivers/usb/gadget | |
| parent | 9fd96bbb6a3a1fd9ba24e84a2d7ccc6ccb6beb60 (diff) | |
fsl_mx3_udc: Add i.MX35 support
The i.MX35 works fine with this driver, but we do not have
the usb_ahb clock.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Diffstat (limited to 'drivers/usb/gadget')
| -rw-r--r-- | drivers/usb/gadget/fsl_mx3_udc.c | 31 |
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); + } } |