From: Li Jun <jun.li@xxxxxxx>
SS_CON and U3 wakeup need 'ref_clk' on. iMX8MP turn off it while system
sleep, So disable these wakeup source and only enable DP/DM wakeup source
for host mode.
Reviewed-by: Xu Yang <xu.yang_2@xxxxxxx>
Signed-off-by: Li Jun <jun.li@xxxxxxx>
Acked-by: Thinh Nguyen <Thinh.Nguyen@xxxxxxxxxxxx>
Signed-off-by: Frank Li <Frank.Li@xxxxxxx>
---
drivers/usb/dwc3/dwc3-imx8mp.c | 15 +++++++++------
1 file changed, 9 insertions(+), 6 deletions(-)
diff --git a/drivers/usb/dwc3/dwc3-imx8mp.c b/drivers/usb/dwc3/dwc3-imx8mp.c
index bd6953246f42e..02159cd820a10 100644
--- a/drivers/usb/dwc3/dwc3-imx8mp.c
+++ b/drivers/usb/dwc3/dwc3-imx8mp.c
@@ -96,7 +96,8 @@ static void imx8mp_configure_glue(struct dwc3_imx8mp *dwc3_imx)
writel(value, dwc3_imx->glue_base + USB_CTRL1);
}
-static void dwc3_imx8mp_wakeup_enable(struct dwc3_imx8mp *dwc3_imx)
+static void dwc3_imx8mp_wakeup_enable(struct dwc3_imx8mp *dwc3_imx,
+ pm_message_t msg)
{
struct dwc3 *dwc3 = platform_get_drvdata(dwc3_imx->dwc3);
u32 val;
@@ -106,12 +107,14 @@ static void dwc3_imx8mp_wakeup_enable(struct dwc3_imx8mp *dwc3_imx)
val = readl(dwc3_imx->hsio_blk_base + USB_WAKEUP_CTRL);
- if ((dwc3->current_dr_role == DWC3_GCTL_PRTCAP_HOST) && dwc3->xhci)
- val |= USB_WAKEUP_EN | USB_WAKEUP_SS_CONN |
- USB_WAKEUP_U3_EN | USB_WAKEUP_DPDM_EN;
- else if (dwc3->current_dr_role == DWC3_GCTL_PRTCAP_DEVICE)
+ if ((dwc3->current_dr_role == DWC3_GCTL_PRTCAP_HOST) && dwc3->xhci) {
+ val |= USB_WAKEUP_EN | USB_WAKEUP_DPDM_EN;
+ if (PMSG_IS_AUTO(msg))
+ val |= USB_WAKEUP_SS_CONN | USB_WAKEUP_U3_EN;
+ } else {
val |= USB_WAKEUP_EN | USB_WAKEUP_VBUS_EN |
USB_WAKEUP_VBUS_SRC_SESS_VAL;
+ }
writel(val, dwc3_imx->hsio_blk_base + USB_WAKEUP_CTRL);
}
@@ -307,7 +310,7 @@ static int dwc3_imx8mp_suspend(struct dwc3_imx8mp *dwc3_imx, pm_message_t msg)
/* Wakeup enable */
if (PMSG_IS_AUTO(msg) || device_may_wakeup(dwc3_imx->dev))
- dwc3_imx8mp_wakeup_enable(dwc3_imx);
+ dwc3_imx8mp_wakeup_enable(dwc3_imx, msg);
dwc3_imx->pm_suspended = true;
--
2.34.1
