From: Chris Ruehl <chris.ruehl@xxxxxxxxxxxx>
* init the sts flag to 0 (missed)
* fix write the real bit not sts value
* Set PORTCS_STS and DEVLC_STS only if sts = 1
Signed-off-by: Chris Ruehl <chris.ruehl@xxxxxxxxxxxx>
Signed-off-by: Peter Chen <peter.chen@xxxxxxxxxxxxx>
---
drivers/usb/chipidea/core.c | 8 +++++---
1 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index 5efdc9b..1677fed 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -242,7 +242,7 @@ static int hw_device_init(struct ci_hdrc *ci, void __iomem *base)
static void hw_phymode_configure(struct ci_hdrc *ci)
{
- u32 portsc, lpm, sts;
+ u32 portsc, lpm, sts = 0;
switch (ci->platdata->phy_mode) {
case USBPHY_INTERFACE_MODE_UTMI:
@@ -272,10 +272,12 @@ 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, DEVLC_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, PORTSC_STS);
}
}
--
1.7.8
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