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usb: dwc3: add dis_u3_autosuspend_quirk

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Some xHCI controllers (e.g. Rockchip rk3328 SoC) integrated
in DWC3 IP, don't support USB 3.0 autosuspend well, so we
need to disable USB 3.0 HUB autosuspend function with a quirk.

Change-Id: I72d93837496f875dbcbb16818aa3690017cc1085
Signed-off-by: William Wu <wulf@rock-chips.com>
This commit is contained in:
William Wu 2017-02-21 16:58:22 +08:00 committed by Huang, Tao
parent 4eab21e6bf
commit de4d2cb869
4 changed files with 7 additions and 0 deletions
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2
Documentation/devicetree/bindings/usb/dwc3.txt
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@ -33,6 +33,8 @@ Optional properties:
- snps,tx_de_emphasis_quirk: when set core will set Tx de-emphasis value.
- snps,tx_de_emphasis: the value driven to the PHY is controlled by the
LTSSM during USB3 Compliance mode.
- snps,dis-u3-autosuspend-quirk: when set USB core driver will disable
USB3 autosuspend function.
- snps,dis_u3_susphy_quirk: when set core will disable USB3 suspend phy.
- snps,dis_u2_susphy_quirk: when set core will disable USB2 suspend phy.
- snps,dis_enblslpm_quirk: when set clears the enblslpm in GUSB2PHYCFG,

2
drivers/usb/dwc3/core.c
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@ -967,6 +967,8 @@ static int dwc3_probe(struct platform_device *pdev)
"snps,lfps_filter_quirk");
dwc->rx_detect_poll_quirk = device_property_read_bool(dev,
"snps,rx_detect_poll_quirk");
dwc->dis_u3_autosuspend_quirk = device_property_read_bool(dev,
"snps,dis-u3-autosuspend-quirk");
dwc->dis_u3_susphy_quirk = device_property_read_bool(dev,
"snps,dis_u3_susphy_quirk");
dwc->dis_u2_susphy_quirk = device_property_read_bool(dev,

2
drivers/usb/dwc3/core.h
View File

@ -804,6 +804,7 @@ struct dwc3_scratchpad_array {
* @del_phy_power_chg_quirk: set if we enable delay phy power change quirk
* @lfps_filter_quirk: set if we enable LFPS filter quirk
* @rx_detect_poll_quirk: set if we enable rx_detect to polling lfps quirk
* @dis_u3_autosuspend_quirk: set if the we disable usb3 autosuspend
* @dis_u3_susphy_quirk: set if we disable usb3 suspend phy
* @dis_u2_susphy_quirk: set if we disable usb2 suspend phy
* @dis_enblslpm_quirk: set if we clear enblslpm in GUSB2PHYCFG,
@ -956,6 +957,7 @@ struct dwc3 {
unsigned del_phy_power_chg_quirk:1;
unsigned lfps_filter_quirk:1;
unsigned rx_detect_poll_quirk:1;
unsigned dis_u3_autosuspend_quirk:1;
unsigned dis_u3_susphy_quirk:1;
unsigned dis_u2_susphy_quirk:1;
unsigned dis_enblslpm_quirk:1;

1
drivers/usb/dwc3/host.c
View File

@ -91,6 +91,7 @@ int dwc3_host_init(struct dwc3 *dwc)
memset(&pdata, 0, sizeof(pdata));
pdata.usb3_disable_autosuspend = dwc->dis_u3_autosuspend_quirk;
pdata.usb3_lpm_capable = dwc->usb3_lpm_capable;
pdata.xhci_slow_suspend = dwc->xhci_slow_suspend_quirk;