On Friday, November 29, 2013 11:27 AM, Peter Chen wrote:
* init the sts flag to 0 (missed)
* set the sts flag only if not 0
does PORTSC_STS bit as 1 or 0 affect your case?
If not, please remove hw_write(ci, OP_DEVLC, DEVLC_STS, sts),
since it is useless at current code logic.
Peter
Peter,
in the switch statement sts is set to 1 therefore I think its used.
case USBPHY_INTERFACE_MODE_SERIAL:
portsc = PORTSC_PTS(PTS_SERIAL);
lpm = DEVLC_PTS(PTS_SERIAL);
sts = 1;
break;
Regards
Chris
Signed-off-by: Chris Ruehl <chris.ruehl@xxxxxxxxxxxx>
---
drivers/usb/chipidea/core.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index 5075407..1a6010e 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -245,6 +245,8 @@ static void hw_phymode_configure(struct ci_hdrc *ci)
{
u32 portsc, lpm, sts;
+ sts = 0;
+
switch (ci->platdata->phy_mode) {
case USBPHY_INTERFACE_MODE_UTMI:
portsc = PORTSC_PTS(PTS_UTMI);
@@ -273,10 +275,12 @@ static void hw_phymode_configure(struct ci_hdrc *ci)
if (ci->hw_bank.lpm) {
hw_write(ci, OP_DEVLC, DEVLC_PTS(7) | DEVLC_PTW, lpm);
- hw_write(ci, OP_DEVLC, DEVLC_STS, sts);
+ if (sts)
+ hw_write(ci, OP_DEVLC, DEVLC_STS, sts);
} else {
hw_write(ci, OP_PORTSC, PORTSC_PTS(7) | PORTSC_PTW, portsc);
- hw_write(ci, OP_PORTSC, PORTSC_STS, sts);
+ if ( sts )
+ hw_write(ci, OP_PORTSC, PORTSC_STS, sts);
}
}
--
1.7.10.4
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