[PATCH v2 13/16] usb: dwc3: add lfps filter quirk

Huang Rui
2014-10-17T09:14:36Z

AMD NL needs to enable lfps filter quirk.

Signed-off-by: Huang Rui <ray.huang@amd.com>
---
drivers/usb/dwc3/core.c | 3 +++
drivers/usb/dwc3/core.h | 1 +
drivers/usb/dwc3/dwc3-pci.c | 3 ++-
drivers/usb/dwc3/platform_data.h | 1 +
4 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 920a8ab..a1ee586 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->quirks & DWC3_QUIRK_DEPOCHANGE)
reg |= DWC3_GUSB3PIPECTL_DEPOCHANGE;

+ if (dwc->quirks & DWC3_QUIRK_LFPSFILT)
+ reg |= DWC3_GUSB3PIPECTL_LFPSFILT;
+
dwc3_writel(dwc->regs, DWC3_GUSB3PIPECTL(0), reg);

mdelay(100);
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
index 4c0200f..5bdd5f5 100644
--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h
@@ -182,6 +182,7 @@
#define DWC3_GUSB3PIPECTL_DEP1P2P3(n) ((n) << 19)
#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)
diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c
index 0eb8b2a..d1f0901 100644
--- a/drivers/usb/dwc3/dwc3-pci.c
+++ b/drivers/usb/dwc3/dwc3-pci.c
@@ -154,7 +154,8 @@ static int dwc3_pci_probe(struct pci_dev *pci,
| DWC3_QUIRK_U2SSINP3OK
| DWC3_QUIRK_REQP1P2P3
| DWC3_QUIRK_DEPP1P2P3
- | DWC3_QUIRK_DEPOCHANGE;
+ | DWC3_QUIRK_DEPOCHANGE
+ | DWC3_QUIRK_LFPSFILT;
}

ret = platform_device_add_resources(dwc3, res, ARRAY_SIZE(res));
diff --git a/drivers/usb/dwc3/platform_data.h b/drivers/usb/dwc3/platform_data.h
index 934c5e1..ac7860ab 100644
--- a/drivers/usb/dwc3/platform_data.h
+++ b/drivers/usb/dwc3/platform_data.h
@@ -35,5 +35,6 @@ struct dwc3_platform_data {
#define DWC3_QUIRK_REQP1P2P3 (1 << 4)
#define DWC3_QUIRK_DEPP1P2P3 (1 << 5)
#define DWC3_QUIRK_DEPOCHANGE (1 << 6)
+#define DWC3_QUIRK_LFPSFILT (1 << 7)

};
--
1.9.1