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usb: s3c-hsotg: Fix maximum patcket size setting for EP0
author
Anton Tikhomirov
<av.tikhomirov@samsung.com>
Tue, 6 Mar 2012 05:07:29 +0000
(14:07 +0900)
committer
Felipe Balbi
<balbi@ti.com>
Tue, 10 Apr 2012 16:11:45 +0000
(19:11 +0300)
MPS field of DOEPCTL0 is read only.
Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
drivers/usb/gadget/s3c-hsotg.c
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diff --git
a/drivers/usb/gadget/s3c-hsotg.c
b/drivers/usb/gadget/s3c-hsotg.c
index e3fe5fd795f020e5275c12877f038911f9756ac9..03de169ab3651b826d3def9e5e388d7ff11050b6 100644
(file)
--- a/
drivers/usb/gadget/s3c-hsotg.c
+++ b/
drivers/usb/gadget/s3c-hsotg.c
@@
-1696,10
+1696,12
@@
static void s3c_hsotg_set_ep_maxpacket(struct s3c_hsotg *hsotg,
reg |= mpsval;
writel(reg, regs + S3C_DIEPCTL(ep));
- reg = readl(regs + S3C_DOEPCTL(ep));
- reg &= ~S3C_DxEPCTL_MPS_MASK;
- reg |= mpsval;
- writel(reg, regs + S3C_DOEPCTL(ep));
+ if (ep) {
+ reg = readl(regs + S3C_DOEPCTL(ep));
+ reg &= ~S3C_DxEPCTL_MPS_MASK;
+ reg |= mpsval;
+ writel(reg, regs + S3C_DOEPCTL(ep));
+ }
return;
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