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Synopsys workaround: If the PHY supports direct P3 to P2 transition, program GUSB3PIPECTL.P3P2Tran0K=1. Therefore, adding p3p2tranok quirk for workaround hibernation D3 exceeded the expected entry time. Signed-off-by: joswang --- drivers/usb/dwc3/core.c | 5 +++++ drivers/usb/dwc3/core.h | 4 ++++ 2 files changed, 9 insertions(+) diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 7ee61a89520b..3a8fbc2d6b99 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -666,6 +666,9 @@ static int dwc3_ss_phy_setup(struct dwc3 *dwc, int index) if (dwc->dis_del_phy_power_chg_quirk) reg &= ~DWC3_GUSB3PIPECTL_DEPOCHANGE; + if (dwc->p2p3tranok_quirk) + reg |= DWC3_GUSB3PIPECTL_P3P2TRANOK; + dwc3_writel(dwc->regs, DWC3_GUSB3PIPECTL(index), reg); return 0; @@ -1715,6 +1718,8 @@ static void dwc3_get_properties(struct dwc3 *dwc) dwc->dis_split_quirk = device_property_read_bool(dev, "snps,dis-split-quirk"); + dwc->p2p3tranok_quirk = device_property_read_bool(dev, + "snps,p2p3tranok-quirk"); dwc->lpm_nyet_threshold = lpm_nyet_threshold; dwc->tx_de_emphasis = tx_de_emphasis; diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index 3781c736c1a1..2810dce8b42e 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -327,6 +327,7 @@ #define DWC3_GUSB3PIPECTL_DEP1P2P3_EN DWC3_GUSB3PIPECTL_DEP1P2P3(1) #define DWC3_GUSB3PIPECTL_DEPOCHANGE BIT(18) #define DWC3_GUSB3PIPECTL_SUSPHY BIT(17) +#define DWC3_GUSB3PIPECTL_P3P2TRANOK BIT(11) #define DWC3_GUSB3PIPECTL_LFPSFILT BIT(9) #define DWC3_GUSB3PIPECTL_RX_DETOPOLL BIT(8) #define DWC3_GUSB3PIPECTL_TX_DEEPH_MASK DWC3_GUSB3PIPECTL_TX_DEEPH(3) @@ -1132,6 +1133,8 @@ struct dwc3_scratchpad_array { * instances in park mode. * @parkmode_disable_hs_quirk: set if we need to disable all HishSpeed * instances in park mode. + * @p2p3tranok_quirk: set if Controller transitions directly from phy + * power state P2 to P3 or from state P3 to P2. * @gfladj_refclk_lpm_sel: set if we need to enable SOF/ITP counter * running based on ref_clk * @tx_de_emphasis_quirk: set if we enable Tx de-emphasis quirk @@ -1361,6 +1364,7 @@ struct dwc3 { unsigned ulpi_ext_vbus_drv:1; unsigned parkmode_disable_ss_quirk:1; unsigned parkmode_disable_hs_quirk:1; + unsigned p2p3tranok_quirk:1; unsigned gfladj_refclk_lpm_sel:1; unsigned tx_de_emphasis_quirk:1;