mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-08-28 11:49:32 +00:00
Code Issues Releases Wiki Activity

usb: renesas_usbhs: Don't check CSSTS bit if peripheral mode

Browse source 
Since Some SoCs (e.g. R-Car Gen2) don't have the CSSTS bit in the
pipectrl registers ({DCP,PIPEn}CTR) because such SoCs have peripheral
mode only. So, this driver should not check the CSSTS bit if peripheral
mode is running.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
This commit is contained in:
Yoshihiro Shimoda 2016-02-05 13:57:11 +09:00 committed by Felipe Balbi
parent de18757e27
commit 21a596c17b
1 changed files with 2 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
drivers/usb/renesas_usbhs/pipe.c
View file

@ -241,7 +241,7 @@ static int usbhsp_pipe_barrier(struct usbhs_pipe *pipe)
{
struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
int timeout = 1024;
u16 val;
u16 mask = usbhs_mod_is_host(priv) ? (CSSTS | PID_MASK) : PID_MASK;
/*
* make sure....
@ -265,9 +265,7 @@ static int usbhsp_pipe_barrier(struct usbhs_pipe *pipe)
usbhs_pipe_disable(pipe);
do {
val = usbhsp_pipectrl_get(pipe);
val &= CSSTS | PID_MASK;
if (!val)
if (!(usbhsp_pipectrl_get(pipe) & mask))
return 0;
udelay(10);