[PATCH 6/6] usb: dwc3: host: Set quirks base on version

[Thinh Nguyen <Thinh.Nguyen@synopsys.com>]

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@synopsys.com>
---
 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