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| author | Huang Rui <ray.huang@amd.com> | 2014-10-28 19:54:30 +0800 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2014-11-03 10:03:37 -0600 |
| commit | a2a1d0f5838d6aa0d1306ef9bb1011f501faa695 (patch) | |
| tree | 252fdd65bb448aa55edb1d75d257335f38714e29 /drivers/usb/dwc3/core.c | |
| parent | df31f5b3a6d3ef0bb692edff13167e9a1c5aa25e (diff) | |
| download | linux-a2a1d0f5838d6aa0d1306ef9bb1011f501faa695.tar.gz linux-a2a1d0f5838d6aa0d1306ef9bb1011f501faa695.tar.bz2 linux-a2a1d0f5838d6aa0d1306ef9bb1011f501faa695.zip | |
usb: dwc3: add delay p1p2p3 quirk
This patch adds delay P0 to P1/P2/P3 quirk for U2/U2/U3, and some special
platforms can configure that if it is needed.
[ balbi@ti.com : added DeviceTree binding documentation ]
Signed-off-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/dwc3/core.c')
| -rw-r--r-- | drivers/usb/dwc3/core.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 600d3bc8d04d..c07651484c60 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -380,6 +380,9 @@ static void dwc3_phy_setup(struct dwc3 *dwc) if (dwc->req_p1p2p3_quirk) reg |= DWC3_GUSB3PIPECTL_REQP1P2P3; + if (dwc->del_p1p2p3_quirk) + reg |= DWC3_GUSB3PIPECTL_DEP1P2P3_EN; + dwc3_writel(dwc->regs, DWC3_GUSB3PIPECTL(0), reg); mdelay(100); @@ -761,6 +764,8 @@ static int dwc3_probe(struct platform_device *pdev) "snps,u2ss_inp3_quirk"); dwc->req_p1p2p3_quirk = of_property_read_bool(node, "snps,req_p1p2p3_quirk"); + dwc->del_p1p2p3_quirk = of_property_read_bool(node, + "snps,del_p1p2p3_quirk"); } else if (pdata) { dwc->maximum_speed = pdata->maximum_speed; dwc->has_lpm_erratum = pdata->has_lpm_erratum; @@ -774,6 +779,7 @@ static int dwc3_probe(struct platform_device *pdev) dwc->u2exit_lfps_quirk = pdata->u2exit_lfps_quirk; dwc->u2ss_inp3_quirk = pdata->u2ss_inp3_quirk; dwc->req_p1p2p3_quirk = pdata->req_p1p2p3_quirk; + dwc->del_p1p2p3_quirk = pdata->del_p1p2p3_quirk; } /* default to superspeed if no maximum_speed passed */ |