From: Benoit Goby <benoit@android.com>
Date: Tue, 25 Jan 2011 20:13:52 +0000 (-0800)
Subject: usb: gadget: tegra_udc: Request 400MHz emc clock
X-Git-Tag: firefly_0821_release~9833^2~44^2~7
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=2418fe42cc2e73531c6369cf7c77f135c8b04d42;p=firefly-linux-kernel-4.4.55.git

usb: gadget: tegra_udc: Request 400MHz emc clock

while USB is active to eliminate all USB buffer underruns.

Change-Id: I7ad8ebfa2d802f91b81839e14fde906da1a0569e
Signed-off-by: Nathan Connell <w14185@motorola.com>
---

diff --git a/drivers/usb/gadget/fsl_tegra_udc.c b/drivers/usb/gadget/fsl_tegra_udc.c
index 74c1d0b52541..14e62f40a50a 100644
--- a/drivers/usb/gadget/fsl_tegra_udc.c
+++ b/drivers/usb/gadget/fsl_tegra_udc.c
@@ -42,7 +42,7 @@ int fsl_udc_clk_init(struct platform_device *pdev)
 	}
 
 	clk_enable(emc_clk);
-	clk_set_rate(emc_clk, 240000000);
+	clk_set_rate(emc_clk, 400000000);
 
 	/* we have to remap the registers ourselves as fsl_udc does not
 	 * export them for us.