We can check for host quirks at runtime base on the controller IP and
version check. Set the following quirks for the DWC_usb31 IP host mode
before creating a platform device for the xHCI driver:
* XHCI_ISOC_BLOCKED_DISCONNECT
* XHCI_LIMIT_FS_BI_INTR_EP
* XHCI_LOST_DISCONNECT_QUIRK
Signed-off-by: Thinh Nguyen <Thinh.Nguyen@xxxxxxxxxxxx>
---
drivers/usb/dwc3/host.c | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/drivers/usb/dwc3/host.c b/drivers/usb/dwc3/host.c
index f29a264635aa..a486d7fbb163 100644
--- a/drivers/usb/dwc3/host.c
+++ b/drivers/usb/dwc3/host.c
@@ -9,6 +9,7 @@
#include <linux/acpi.h>
#include <linux/platform_device.h>
+#include <linux/usb/xhci-quirks.h>
#include "core.h"
@@ -42,6 +43,17 @@ static int dwc3_host_get_irq(struct dwc3 *dwc)
return irq;
}
+static void dwc3_host_init_quirks(struct dwc3 *dwc, struct xhci_plat_priv *priv)
+{
+ memset(priv, 0, sizeof(*priv));
+
+ if (DWC3_VER_IS_WITHIN(DWC31, ANY, 190A)) {
+ priv->quirks |= XHCI_ISOC_BLOCKED_DISCONNECT;
+ priv->quirks |= XHCI_LIMIT_FS_BI_INTR_EP;
+ priv->quirks |= XHCI_LOST_DISCONNECT_QUIRK;
+ }
+}
+
int dwc3_host_init(struct dwc3 *dwc)
{
struct property_entry props[4];
@@ -49,6 +61,7 @@ int dwc3_host_init(struct dwc3 *dwc)
int ret, irq;
struct resource *res;
struct platform_device *dwc3_pdev = to_platform_device(dwc->dev);
+ struct xhci_plat_priv dwc3_priv;
int prop_idx = 0;
irq = dwc3_host_get_irq(dwc);
@@ -87,6 +100,14 @@ int dwc3_host_init(struct dwc3 *dwc)
goto err;
}
+ dwc3_host_init_quirks(dwc, &dwc3_priv);
+
+ ret = platform_device_add_data(xhci, &dwc3_priv, sizeof(dwc3_priv));
+ if (ret) {
+ dev_err(dwc->dev, "couldn't add platform data to xHCI device\n");
+ goto err;
+ }
+
memset(props, 0, sizeof(struct property_entry) * ARRAY_SIZE(props));
if (dwc->usb3_lpm_capable)
--
2.28.0
