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usb: dwc2: disable lpm feature on Rockchip SoCs

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LPM feature of DWC2 module integrated in Rockchip SoCs doesn't work
properly or needs some additional handling, so disable it for now.
Without disabling LPM feature, the USB ADB communication fail with
the following error log:

dwc2 ff580000.usb: new address 27
dwc2 ff580000.usb: Failed to exit L1 sleep state in 200us.
dwc2 ff580000.usb: dwc2_hsotg_send_reply: cannot queue req
dwc2 ff580000.usb: dwc2_hsotg_process_req_status: failed to send reply
dwc2 ff580000.usb: dwc2_hsotg_enqueue_setup: failed queue (-11)
dwc2 ff580000.usb: Failed to exit L1 sleep state in 200us.

Change-Id: I4e2b243fba2f1536c39f313232433cfd295113d6
Signed-off-by: William Wu <william.wu@rock-chips.com>
Signed-off-by: Frank Wang <frank.wang@rock-chips.com>
This commit is contained in:
William Wu
2019-09-05 09:14:53 +08:00
committed by Frank Wang
parent c492331f1e
commit 06ae73b03c
1 changed files with 1 additions and 0 deletions
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drivers/usb/dwc2/params.c
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@@ -90,6 +90,7 @@ static void dwc2_set_rk_params(struct dwc2_hsotg *hsotg)
p->ahbcfg = GAHBCFG_HBSTLEN_INCR16 <<
GAHBCFG_HBSTLEN_SHIFT;
p->power_down = DWC2_POWER_DOWN_PARAM_NONE;
p->lpm = false;
}
static void dwc2_set_ltq_params(struct dwc2_hsotg *hsotg)