Add 2 software manage quirk properties (xhci-missing-cas-quirk and
xhci-skip-phy-init-quirk) for xhci host.
dwc3 driver have PHY management to cover both device and host mode, so add
xhci-skip-phy-init-quirk to skip PHY management from HCD core.
Cold Attach Status (CAS) bit can't be set at i.MX8MP after resume from
suspend state. So set xhci-missing-cas-quirk.
Acked-by: Thinh Nguyen <Thinh.Nguyen@xxxxxxxxxxxx>
Signed-off-by: Frank Li <Frank.Li@xxxxxxx>
---
Change from v2 to v3
- rework commit message to descript why need set quirk.
Change from v1 to v2
- use {0}
---
drivers/usb/dwc3/dwc3-imx8mp.c | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/drivers/usb/dwc3/dwc3-imx8mp.c b/drivers/usb/dwc3/dwc3-imx8mp.c
index 8b88649b569fe..f62f6f960e501 100644
--- a/drivers/usb/dwc3/dwc3-imx8mp.c
+++ b/drivers/usb/dwc3/dwc3-imx8mp.c
@@ -145,6 +145,17 @@ static irqreturn_t dwc3_imx8mp_interrupt(int irq, void *_dwc3_imx)
return IRQ_HANDLED;
}
+static int dwc3_imx8mp_set_software_node(struct device *dev)
+{
+ struct property_entry props[3] = { 0 };
+ int prop_idx = 0;
+
+ props[prop_idx++] = PROPERTY_ENTRY_BOOL("xhci-missing-cas-quirk");
+ props[prop_idx++] = PROPERTY_ENTRY_BOOL("xhci-skip-phy-init-quirk");
+
+ return device_create_managed_software_node(dev, props, NULL);
+}
+
static int dwc3_imx8mp_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@@ -207,6 +218,20 @@ static int dwc3_imx8mp_probe(struct platform_device *pdev)
if (err < 0)
goto disable_rpm;
+ dwc3_np = of_get_compatible_child(node, "snps,dwc3");
+ if (!dwc3_np) {
+ err = -ENODEV;
+ dev_err(dev, "failed to find dwc3 core child\n");
+ goto disable_rpm;
+ }
+
+ err = dwc3_imx8mp_set_software_node(dev);
+ if (err) {
+ err = -ENODEV;
+ dev_err(dev, "failed to create software node\n");
+ goto disable_rpm;
+ }
+
err = of_platform_populate(node, NULL, NULL, dev);
if (err) {
dev_err(&pdev->dev, "failed to create dwc3 core\n");
--
2.34.1
