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Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0207-dwc_otg-Enable-the-hack-for-Split-Interrupt-transact.patch')
-rw-r--r--target/linux/brcm2708/patches-4.4/0207-dwc_otg-Enable-the-hack-for-Split-Interrupt-transact.patch28
1 files changed, 28 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0207-dwc_otg-Enable-the-hack-for-Split-Interrupt-transact.patch b/target/linux/brcm2708/patches-4.4/0207-dwc_otg-Enable-the-hack-for-Split-Interrupt-transact.patch
new file mode 100644
index 0000000000..5ea9384e75
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.4/0207-dwc_otg-Enable-the-hack-for-Split-Interrupt-transact.patch
@@ -0,0 +1,28 @@
+From cd141372388a05c228ce0552cfc6edc3bf3b65d6 Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Mon, 21 Mar 2016 15:38:38 +0000
+Subject: [PATCH 207/304] dwc_otg: Enable the hack for Split Interrupt
+ transactions by default
+
+dwc_otg.fiq_fsm_mask=0xF has long been a suggestion for users with audio stutters or other USB bandwidth issues.
+So far we are aware of many success stories but no failure caused by this setting.
+Make it a default to learn more.
+
+See: https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=70437
+
+Signed-off-by: popcornmix <popcornmix@gmail.com>
+---
+ drivers/usb/host/dwc_otg/dwc_otg_driver.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/usb/host/dwc_otg/dwc_otg_driver.c
++++ b/drivers/usb/host/dwc_otg/dwc_otg_driver.c
+@@ -247,7 +247,7 @@ bool fiq_fsm_enable = true;
+ //Bulk split-transaction NAK holdoff in microframes
+ uint16_t nak_holdoff = 8;
+
+-unsigned short fiq_fsm_mask = 0x07;
++unsigned short fiq_fsm_mask = 0x0F;
+
+ /**
+ * This function shows the Driver Version.