This patch adds disable usb2 suspend phy quirk, and some special platforms
can configure that if it is needed.
Signed-off-by: Huang Rui <ray.hu...@amd.com>
---
drivers/usb/dwc3/core.c | 6 ++++++
drivers/usb/dwc3/core.h | 2 ++
drivers/usb/dwc3/platform_data.h | 1 +
3 files changed, 9 insertions(+)
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index aec393b..33a8f3c 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -422,6 +422,9 @@ static void dwc3_phy_setup(struct dwc3 *dwc)
if (dwc->revision > DWC3_REVISION_194A)
reg |= DWC3_GUSB2PHYCFG_SUSPHY;
+ if (dwc->dis_u2_susphy_quirk)
+ reg &= ~DWC3_GUSB2PHYCFG_SUSPHY;
+
dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg);
mdelay(100);
@@ -812,6 +815,8 @@ static int dwc3_probe(struct platform_device *pdev)
"snps,rx_detect_poll_quirk");
dwc->dis_u3_susphy_quirk = of_property_read_bool(node,
"snps,dis_u3_susphy_quirk");
+ dwc->dis_u2_susphy_quirk = of_property_read_bool(node,
+ "snps,dis_u2_susphy_quirk");
dwc->tx_deemph_quirk = of_property_read_bool(node,
"snps,tx_deemph_quirk");
@@ -835,6 +840,7 @@ static int dwc3_probe(struct platform_device *pdev)
dwc->lfps_filter_quirk = pdata->lfps_filter_quirk;
dwc->rx_detect_poll_quirk = pdata->rx_detect_poll_quirk;
dwc->dis_u3_susphy_quirk = pdata->dis_u3_susphy_quirk;
+ dwc->dis_u2_susphy_quirk = pdata->dis_u2_susphy_quirk;
dwc->tx_deemph_quirk = pdata->tx_deemph_quirk;
if (pdata->tx_deemph)
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
index 686d3b9..8b94ad5 100644
--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h
@@ -698,6 +698,7 @@ struct dwc3_scratchpad_array {
* @lfps_filter_quirk: set if we enable LFPS filter quirk
* @rx_detect_poll_quirk: set if we enable rx_detect to polling lfps quirk
* @dis_u3_susphy_quirk: set if we disable usb3 suspend phy
+ * @dis_u2_susphy_quirk: set if we disable usb2 suspend phy
* @tx_deemph_quirk: set if we enable Tx deemphasis quirk
* @tx_deemph: Tx deemphasis value
* 0 - -6dB de-emphasis
@@ -820,6 +821,7 @@ struct dwc3 {
unsigned lfps_filter_quirk:1;
unsigned rx_detect_poll_quirk:1;
unsigned dis_u3_susphy_quirk:1;
+ unsigned dis_u2_susphy_quirk:1;
unsigned tx_deemph_quirk:1;
unsigned tx_deemph:2;
diff --git a/drivers/usb/dwc3/platform_data.h b/drivers/usb/dwc3/platform_data.h
index c8115c7..1cfd384 100644
--- a/drivers/usb/dwc3/platform_data.h
+++ b/drivers/usb/dwc3/platform_data.h
@@ -36,6 +36,7 @@ struct dwc3_platform_data {
unsigned lfps_filter_quirk:1;
unsigned rx_detect_poll_quirk:1;
unsigned dis_u3_susphy_quirk:1;
+ unsigned dis_u2_susphy_quirk:1;
unsigned tx_deemph_quirk:1;
unsigned tx_deemph:2;
--
1.9.1
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