auto_patch/common14-5.15/common/08_usb/0007-usb-cts-USB-Device-Test-module-fail-1-2.patch

From 3897a9e000b5c14ebe8938ead7e4882e8b569a74 Mon Sep 17 00:00:00 2001
From: Yue Wang <yue.wang@amlogic.com>
Date: Fri, 4 Nov 2022 13:18:14 +0800
Subject: [PATCH 68/95] usb: cts: USB Device Test module fail [1/2]

PD#SWPL-99116

Problem:
cts: USB Device Test module fail

Solution:
Don't use IDT transmissions for CRG control

Verify:
t3

Change-Id: Ic5c59615e6139382ae348e37501f665bd373c1ef
Signed-off-by: Yue Wang <yue.wang@amlogic.com>
---
 drivers/usb/host/xhci-plat.c |  5 +++++
 drivers/usb/host/xhci.h      | 11 +++++++++++
 2 files changed, 16 insertions(+)

diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
index 972a44b2a7f1..b2c6e2e35e30 100644
--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -323,6 +323,11 @@ static int xhci_plat_probe(struct platform_device *pdev)
 		if (device_property_read_bool(tmpdev, "quirk-broken-port-ped"))
 			xhci->quirks |= XHCI_BROKEN_PORT_PED;
 
+#if IS_ENABLED(CONFIG_AMLOGIC_COMMON_USB)
+		if (device_property_read_bool(tmpdev, "xhci-crg-host"))
+			xhci->quirks |= XHCI_DISABLE_IDT;
+#endif
+
 		device_property_read_u32(tmpdev, "imod-interval-ns",
 					 &xhci->imod_interval);
 	}
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 119d2541fe5e..168ef5e123ec 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1917,6 +1917,9 @@ struct xhci_hcd {
 #define XHCI_EP_CTX_BROKEN_DCS	BIT_ULL(42)
 #define XHCI_SUSPEND_RESUME_CLKS	BIT_ULL(43)
 #define XHCI_RESET_TO_DEFAULT	BIT_ULL(44)
+#if IS_ENABLED(CONFIG_AMLOGIC_COMMON_USB)
+#define XHCI_DISABLE_IDT	BIT_ULL(45)
+#endif
 
 	unsigned int		num_active_eps;
 	unsigned int		limit_active_eps;
@@ -2240,6 +2243,14 @@ static inline struct xhci_ring *xhci_urb_to_transfer_ring(struct xhci_hcd *xhci,
  */
 static inline bool xhci_urb_suitable_for_idt(struct urb *urb)
 {
+#if IS_ENABLED(CONFIG_AMLOGIC_COMMON_USB)
+	struct usb_hcd	*hcd = bus_to_hcd(urb->dev->bus);
+	struct xhci_hcd *xhci = hcd_to_xhci(hcd);
+
+	if (xhci->quirks & XHCI_DISABLE_IDT)
+		return false;
+#endif
+
 	if (!usb_endpoint_xfer_isoc(&urb->ep->desc) && usb_urb_dir_out(urb) &&
 	    usb_endpoint_maxp(&urb->ep->desc) >= TRB_IDT_MAX_SIZE &&
 	    urb->transfer_buffer_length <= TRB_IDT_MAX_SIZE &&
-- 
2.25.1