From 2f7c68cb55ecb7331f2381deb497c27155f32faf Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 03 Jan 2024 09:43:39 +0000
Subject: [PATCH] update kernel to 5.10.198

---
 kernel/drivers/usb/host/xhci-mem.c |   39 ++++++++++++++++++++++++++++++---------
 1 files changed, 30 insertions(+), 9 deletions(-)

diff --git a/kernel/drivers/usb/host/xhci-mem.c b/kernel/drivers/usb/host/xhci-mem.c
index 9221838..4c5bf05 100644
--- a/kernel/drivers/usb/host/xhci-mem.c
+++ b/kernel/drivers/usb/host/xhci-mem.c
@@ -2236,7 +2236,7 @@
 {
 	u32 temp, port_offset, port_count;
 	int i;
-	u8 major_revision, minor_revision;
+	u8 major_revision, minor_revision, tmp_minor_revision;
 	struct xhci_hub *rhub;
 	struct device *dev = xhci_to_hcd(xhci)->self.sysdev;
 	struct xhci_port_cap *port_cap;
@@ -2256,6 +2256,15 @@
 		 */
 		if (minor_revision > 0x00 && minor_revision < 0x10)
 			minor_revision <<= 4;
+		/*
+		 * Some zhaoxin's xHCI controller that follow usb3.1 spec
+		 * but only support Gen1.
+		 */
+		if (xhci->quirks & XHCI_ZHAOXIN_HOST) {
+			tmp_minor_revision = minor_revision;
+			minor_revision = 0;
+		}
+
 	} else if (major_revision <= 0x02) {
 		rhub = &xhci->usb2_rhub;
 	} else {
@@ -2265,10 +2274,6 @@
 		/* Ignoring port protocol we can't understand. FIXME */
 		return;
 	}
-	rhub->maj_rev = XHCI_EXT_PORT_MAJOR(temp);
-
-	if (rhub->min_rev < minor_revision)
-		rhub->min_rev = minor_revision;
 
 	/* Port offset and count in the third dword, see section 7.2 */
 	temp = readl(addr + 2);
@@ -2287,8 +2292,6 @@
 	if (xhci->num_port_caps > max_caps)
 		return;
 
-	port_cap->maj_rev = major_revision;
-	port_cap->min_rev = minor_revision;
 	port_cap->psi_count = XHCI_EXT_PORT_PSIC(temp);
 
 	if (port_cap->psi_count) {
@@ -2309,6 +2312,11 @@
 				  XHCI_EXT_PORT_PSIV(port_cap->psi[i - 1])))
 				port_cap->psi_uid_count++;
 
+			if (xhci->quirks & XHCI_ZHAOXIN_HOST &&
+			    major_revision == 0x03 &&
+			    XHCI_EXT_PORT_PSIV(port_cap->psi[i]) >= 5)
+				minor_revision = tmp_minor_revision;
+
 			xhci_dbg(xhci, "PSIV:%d PSIE:%d PLT:%d PFD:%d LP:%d PSIM:%d\n",
 				  XHCI_EXT_PORT_PSIV(port_cap->psi[i]),
 				  XHCI_EXT_PORT_PSIE(port_cap->psi[i]),
@@ -2318,6 +2326,15 @@
 				  XHCI_EXT_PORT_PSIM(port_cap->psi[i]));
 		}
 	}
+
+	rhub->maj_rev = major_revision;
+
+	if (rhub->min_rev < minor_revision)
+		rhub->min_rev = minor_revision;
+
+	port_cap->maj_rev = major_revision;
+	port_cap->min_rev = minor_revision;
+
 	/* cache usb2 port capabilities */
 	if (major_revision < 0x03 && xhci->num_ext_caps < max_caps)
 		xhci->ext_caps[xhci->num_ext_caps++] = temp;
@@ -2568,8 +2585,12 @@
 	 * and our use of dma addresses in the trb_address_map radix tree needs
 	 * TRB_SEGMENT_SIZE alignment, so we pick the greater alignment need.
 	 */
-	xhci->segment_pool = dma_pool_create("xHCI ring segments", dev,
-			TRB_SEGMENT_SIZE, TRB_SEGMENT_SIZE, xhci->page_size);
+	if (xhci->quirks & XHCI_ZHAOXIN_TRB_FETCH)
+		xhci->segment_pool = dma_pool_create("xHCI ring segments", dev,
+				TRB_SEGMENT_SIZE * 2, TRB_SEGMENT_SIZE * 2, xhci->page_size * 2);
+	else
+		xhci->segment_pool = dma_pool_create("xHCI ring segments", dev,
+				TRB_SEGMENT_SIZE, TRB_SEGMENT_SIZE, xhci->page_size);
 
 	/* See Table 46 and Note on Figure 55 */
 	xhci->device_pool = dma_pool_create("xHCI input/output contexts", dev,

--
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