Patchwork [025/222] usb: host: xhci: Stricter conditional for Z1 system models for Compliance Mode Patch

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Submitter Herton Ronaldo Krzesinski
Date Jan. 16, 2013, 3:53 p.m.
Message ID <>
Download mbox | patch
Permalink /patch/212603/
State New
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Herton Ronaldo Krzesinski - Jan. 16, 2013, 3:53 p.m. -stable review patch.  If anyone has any objections, please let me know.


From: "Alexis R. Cortes" <>

commit b0e4e606ff6ff26da0f60826e75577b56ba4e463 upstream.

This minor patch creates a more stricter conditional for the Z1 sytems for applying
the Compliance Mode Patch, this to avoid the quirk to be applied to models that
contain a "Z1" in their dmi product string but are different from Z1 systems.

This patch should be backported to stable kernels as old as 3.2, that
contain the commit 71c731a296f1b08a3724bd1b514b64f1bda87a23 "usb: host:
xhci: Fix Compliance Mode on SN65LVPE502CP Hardware"

Signed-off-by: Alexis R. Cortes <>
Signed-off-by: Sarah Sharp <>
Signed-off-by: Herton Ronaldo Krzesinski <>
 drivers/usb/host/xhci.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)


diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index f67634b..77da9a0 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -480,7 +480,7 @@  static bool compliance_mode_recovery_timer_quirk_check(void)
 	if (strstr(dmi_product_name, "Z420") ||
 			strstr(dmi_product_name, "Z620") ||
 			strstr(dmi_product_name, "Z820") ||
-			strstr(dmi_product_name, "Z1"))
+			strstr(dmi_product_name, "Z1 Workstation"))
 		return true;
 	return false;