diff options
| author |   Huang Rui <ray.huang@amd.com> | 2014-10-28 19:54:32 +0800 |
|---|---|---|
| committer |   Felipe Balbi <balbi@ti.com> | 2014-11-03 10:03:38 -0600 |
| commit | fb67afca177a215684d6124137f61e639c5483d4 (patch) | |
| tree | c1eee904590f9b5453dfd515d3c6f41aa0baeace /drivers/usb/dwc3 | |
| parent | usb: dwc3: add delay phy power change quirk (diff) | |
| download | linux-dev-fb67afca177a215684d6124137f61e639c5483d4.tar.xz linux-dev-fb67afca177a215684d6124137f61e639c5483d4.zip | |
usb: dwc3: add lfps filter quirk
This patch adds LFPS filter quirk, 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 de6a00969bc7..29a7da0c3178 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -386,6 +386,9 @@ static void dwc3_phy_setup(struct dwc3 *dwc) if (dwc->del_phy_power_chg_quirk) reg |= DWC3_GUSB3PIPECTL_DEPOCHANGE; + if (dwc->lfps_filter_quirk) + reg |= DWC3_GUSB3PIPECTL_LFPSFILT; + dwc3_writel(dwc->regs, DWC3_GUSB3PIPECTL(0), reg); mdelay(100); @@ -771,6 +774,8 @@ static int dwc3_probe(struct platform_device *pdev) "snps,del_p1p2p3_quirk"); dwc->del_phy_power_chg_quirk = of_property_read_bool(node, "snps,del_phy_power_chg_quirk"); + dwc->lfps_filter_quirk = of_property_read_bool(node, + "snps,lfps_filter_quirk"); } else if (pdata) { dwc->maximum_speed = pdata->maximum_speed; dwc->has_lpm_erratum = pdata->has_lpm_erratum; @@ -786,6 +791,7 @@ static int dwc3_probe(struct platform_device *pdev) dwc->req_p1p2p3_quirk = pdata->req_p1p2p3_quirk; 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; } /* default to superspeed if no maximum_speed passed */ diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index 5e8a75c3f3c8..368d32948e27 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -183,6 +183,7 @@ #define DWC3_GUSB3PIPECTL_DEP1P2P3_EN DWC3_GUSB3PIPECTL_DEP1P2P3(1) #define DWC3_GUSB3PIPECTL_DEPOCHANGE (1 << 18) #define DWC3_GUSB3PIPECTL_SUSPHY (1 << 17) +#define DWC3_GUSB3PIPECTL_LFPSFILT (1 << 9) /* Global TX Fifo Size Register */ #define DWC3_GTXFIFOSIZ_TXFDEF(n) ((n) & 0xffff) @@ -691,6 +692,7 @@ struct dwc3_scratchpad_array { * @req_p1p2p3_quirk: set if we enable request p1p2p3 quirk * @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 */ struct dwc3 { struct usb_ctrlrequest *ctrl_req; @@ -804,6 +806,7 @@ struct dwc3 { unsigned req_p1p2p3_quirk:1; unsigned del_p1p2p3_quirk:1; unsigned del_phy_power_chg_quirk:1; + unsigned lfps_filter_quirk:1; }; /* -------------------------------------------------------------------------- */ diff --git a/drivers/usb/dwc3/platform_data.h b/drivers/usb/dwc3/platform_data.h index ae67151dc870..dad0211e8743 100644 --- a/drivers/usb/dwc3/platform_data.h +++ b/drivers/usb/dwc3/platform_data.h @@ -34,4 +34,5 @@ struct dwc3_platform_data { unsigned req_p1p2p3_quirk:1; unsigned del_p1p2p3_quirk:1; unsigned del_phy_power_chg_quirk:1; + unsigned lfps_filter_quirk:1; }; |