diff options
| -rw-r--r-- | Documentation/devicetree/bindings/usb/dwc3.txt | 2 | ||||
| -rw-r--r-- | drivers/usb/dwc3/core.c | 6 | ||||
| -rw-r--r-- | drivers/usb/dwc3/core.h | 3 | ||||
| -rw-r--r-- | drivers/usb/dwc3/platform_data.h | 1 |
4 files changed, 12 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/usb/dwc3.txt b/Documentation/devicetree/bindings/usb/dwc3.txt index 4edd29a24e74..1ecc33315e1f 100644 --- a/Documentation/devicetree/bindings/usb/dwc3.txt +++ b/Documentation/devicetree/bindings/usb/dwc3.txt @@ -27,6 +27,8 @@ Optional properties: - snps,del_phy_power_chg_quirk: when set core will delay PHY power change from P0 to P1/P2/P3. - snps,lfps_filter_quirk: when set core will filter LFPS reception. + - snps,rx_detect_poll_quirk: when set core will disable a 400us delay to start + Polling LFPS after RX.Detect. This is usually a subnode to DWC3 glue to which it is connected. diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 29a7da0c3178..b440b2b29872 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -389,6 +389,9 @@ static void dwc3_phy_setup(struct dwc3 *dwc) if (dwc->lfps_filter_quirk) reg |= DWC3_GUSB3PIPECTL_LFPSFILT; + if (dwc->rx_detect_poll_quirk) + reg |= DWC3_GUSB3PIPECTL_RX_DETOPOLL; + dwc3_writel(dwc->regs, DWC3_GUSB3PIPECTL(0), reg); mdelay(100); @@ -776,6 +779,8 @@ static int dwc3_probe(struct platform_device *pdev) "snps,del_phy_power_chg_quirk"); dwc->lfps_filter_quirk = of_property_read_bool(node, "snps,lfps_filter_quirk"); + dwc->rx_detect_poll_quirk = of_property_read_bool(node, + "snps,rx_detect_poll_quirk"); } else if (pdata) { dwc->maximum_speed = pdata->maximum_speed; dwc->has_lpm_erratum = pdata->has_lpm_erratum; @@ -792,6 +797,7 @@ static int dwc3_probe(struct platform_device *pdev) dwc->del_p1p2p3_quirk = pdata->del_p1p2p3_quirk; dwc->del_phy_power_chg_quirk = pdata->del_phy_power_chg_quirk; dwc->lfps_filter_quirk = pdata->lfps_filter_quirk; + dwc->rx_detect_poll_quirk = pdata->rx_detect_poll_quirk; } /* default to superspeed if no maximum_speed passed */ diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index 368d32948e27..8953d739b73d 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -184,6 +184,7 @@ #define DWC3_GUSB3PIPECTL_DEPOCHANGE (1 << 18) #define DWC3_GUSB3PIPECTL_SUSPHY (1 << 17) #define DWC3_GUSB3PIPECTL_LFPSFILT (1 << 9) +#define DWC3_GUSB3PIPECTL_RX_DETOPOLL (1 << 8) /* Global TX Fifo Size Register */ #define DWC3_GTXFIFOSIZ_TXFDEF(n) ((n) & 0xffff) @@ -693,6 +694,7 @@ struct dwc3_scratchpad_array { * @del_p1p2p3_quirk: set if we enable delay p1p2p3 quirk * @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 */ struct dwc3 { struct usb_ctrlrequest *ctrl_req; @@ -807,6 +809,7 @@ struct dwc3 { unsigned del_p1p2p3_quirk:1; unsigned del_phy_power_chg_quirk:1; unsigned lfps_filter_quirk:1; + unsigned rx_detect_poll_quirk:1; }; /* -------------------------------------------------------------------------- */ diff --git a/drivers/usb/dwc3/platform_data.h b/drivers/usb/dwc3/platform_data.h index dad0211e8743..4a0f06b2a6c7 100644 --- a/drivers/usb/dwc3/platform_data.h +++ b/drivers/usb/dwc3/platform_data.h @@ -35,4 +35,5 @@ struct dwc3_platform_data { unsigned del_p1p2p3_quirk:1; unsigned del_phy_power_chg_quirk:1; unsigned lfps_filter_quirk:1; + unsigned rx_detect_poll_quirk:1; }; |