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usb: dwc3: imx8mp: disable SS_CON and U3 wakeup for system sleep

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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@nxp.com>
Signed-off-by: Li Jun <jun.li@nxp.com>
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Link: https://lore.kernel.org/r/20240906-dwc-mp-v5-3-ea8ec6774e7b@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Li Jun 2024-09-06 12:30:39 -04:00 committed by Greg Kroah-Hartman
parent a9400f1979
commit 4664b73859
1 changed files with 9 additions and 6 deletions
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15
drivers/usb/dwc3/dwc3-imx8mp.c
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@ -97,7 +97,8 @@ 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;
@ -107,12 +108,14 @@ 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);
}
@ -277,7 +280,7 @@ 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;