diff options
| author | Huang Rui <ray.huang@amd.com> | 2014-10-28 19:54:29 +0800 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2014-11-03 10:03:37 -0600 |
| commit | df31f5b3a6d3ef0bb692edff13167e9a1c5aa25e (patch) | |
| tree | b961bf49cd7429e546ea9bb052ebfdd8f07224dc /drivers/usb/dwc3 | |
| parent | b5a65c406367e3e79ece6f687c83d4ffce4c174c (diff) | |
usb: dwc3: add request p1p2p3 quirk
This patch adds request 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')
| -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 |
3 files changed, 10 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 7c54da187062..600d3bc8d04d 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -377,6 +377,9 @@ static void dwc3_phy_setup(struct dwc3 *dwc) if (dwc->u2ss_inp3_quirk) reg |= DWC3_GUSB3PIPECTL_U2SSINP3OK; + if (dwc->req_p1p2p3_quirk) + reg |= DWC3_GUSB3PIPECTL_REQP1P2P3; + dwc3_writel(dwc->regs, DWC3_GUSB3PIPECTL(0), reg); mdelay(100); @@ -756,6 +759,8 @@ static int dwc3_probe(struct platform_device *pdev) "snps,u2exit_lfps_quirk"); dwc->u2ss_inp3_quirk = of_property_read_bool(node, "snps,u2ss_inp3_quirk"); + dwc->req_p1p2p3_quirk = of_property_read_bool(node, + "snps,req_p1p2p3_quirk"); } else if (pdata) { dwc->maximum_speed = pdata->maximum_speed; dwc->has_lpm_erratum = pdata->has_lpm_erratum; @@ -768,6 +773,7 @@ static int dwc3_probe(struct platform_device *pdev) dwc->disable_scramble_quirk = pdata->disable_scramble_quirk; dwc->u2exit_lfps_quirk = pdata->u2exit_lfps_quirk; dwc->u2ss_inp3_quirk = pdata->u2ss_inp3_quirk; + dwc->req_p1p2p3_quirk = pdata->req_p1p2p3_quirk; } /* default to superspeed if no maximum_speed passed */ diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index 66fd26bfdbfa..ce331630fad9 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -177,6 +177,7 @@ /* Global USB3 PIPE Control Register */ #define DWC3_GUSB3PIPECTL_PHYSOFTRST (1 << 31) #define DWC3_GUSB3PIPECTL_U2SSINP3OK (1 << 29) +#define DWC3_GUSB3PIPECTL_REQP1P2P3 (1 << 24) #define DWC3_GUSB3PIPECTL_SUSPHY (1 << 17) /* Global TX Fifo Size Register */ @@ -683,6 +684,7 @@ struct dwc3_scratchpad_array { * @disable_scramble_quirk: set if we enable the disable scramble quirk * @u2exit_lfps_quirk: set if we enable u2exit lfps quirk * @u2ss_inp3_quirk: set if we enable P3 OK for U2/SS Inactive quirk + * @req_p1p2p3_quirk: set if we enable request p1p2p3 quirk */ struct dwc3 { struct usb_ctrlrequest *ctrl_req; @@ -793,6 +795,7 @@ struct dwc3 { unsigned disable_scramble_quirk:1; unsigned u2exit_lfps_quirk:1; unsigned u2ss_inp3_quirk:1; + unsigned req_p1p2p3_quirk:1; }; /* -------------------------------------------------------------------------- */ diff --git a/drivers/usb/dwc3/platform_data.h b/drivers/usb/dwc3/platform_data.h index cf92c81e2e22..d3e6ec210ef3 100644 --- a/drivers/usb/dwc3/platform_data.h +++ b/drivers/usb/dwc3/platform_data.h @@ -31,4 +31,5 @@ struct dwc3_platform_data { unsigned has_lpm_erratum:1; unsigned u2exit_lfps_quirk:1; unsigned u2ss_inp3_quirk:1; + unsigned req_p1p2p3_quirk:1; }; |