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Date: Wed, 5 May 2010 17:56:09 -0500
From: Dinh Nguyen <Dinh.Nguyen@...escale.com>
To: linux-kernel@...r.kernel.org
Cc: linux-usb@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
s.hauer@...gutronix.de, valentin.longchamp@...l.ch,
daniel@...aq.de, grant.likely@...retlab.ca, bryan.wu@...onical.com,
amit.kucheria@...onical.com, Jun.Li@...escale.com,
xiao-lizhang@...escale.com, Dinh Nguyen <Dinh.Nguyen@...escale.com>
Subject: [PATCHv1 2.6.34-rc6 1/3] mxc: gadget: remove 60mhz clock requirement for freescale mx51 usb core
for mx51, usb core is clocked from sources that are not 60mhz.
Signed-off-by: Dinh Nguyen <Dinh.Nguyen@...escale.com>
---
drivers/usb/gadget/fsl_mx3_udc.c | 14 ++++++++------
1 files changed, 8 insertions(+), 6 deletions(-)
diff --git a/drivers/usb/gadget/fsl_mx3_udc.c b/drivers/usb/gadget/fsl_mx3_udc.c
index 20a802e..d0b8bde 100644
--- a/drivers/usb/gadget/fsl_mx3_udc.c
+++ b/drivers/usb/gadget/fsl_mx3_udc.c
@@ -50,12 +50,14 @@ int fsl_udc_clk_init(struct platform_device *pdev)
goto egusb;
}
- freq = clk_get_rate(mxc_usb_clk);
- 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;
+ if (!cpu_is_mx51()) {
+ freq = clk_get_rate(mxc_usb_clk);
+ 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;
+ }
}
ret = clk_enable(mxc_usb_clk);
--
1.6.0.4
--
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