diff options
Diffstat (limited to 'target/linux/lantiq/patches-4.19')
-rw-r--r-- | target/linux/lantiq/patches-4.19/0002-usb-dwc2-use-a-longer-AHB-idle-timeout-in-dwc2_core_.patch | 35 |
1 files changed, 0 insertions, 35 deletions
diff --git a/target/linux/lantiq/patches-4.19/0002-usb-dwc2-use-a-longer-AHB-idle-timeout-in-dwc2_core_.patch b/target/linux/lantiq/patches-4.19/0002-usb-dwc2-use-a-longer-AHB-idle-timeout-in-dwc2_core_.patch deleted file mode 100644 index c004e44e4a..0000000000 --- a/target/linux/lantiq/patches-4.19/0002-usb-dwc2-use-a-longer-AHB-idle-timeout-in-dwc2_core_.patch +++ /dev/null @@ -1,35 +0,0 @@ -From bfe92b01cafebb10f0d7f38dceb37433687b7887 Mon Sep 17 00:00:00 2001 -From: Martin Blumenstingl <martin.blumenstingl@googlemail.com> -Date: Thu, 20 Jun 2019 19:50:22 +0200 -Subject: [PATCH] usb: dwc2: use a longer AHB idle timeout in dwc2_core_reset() - -Use a 10000us AHB idle timeout in dwc2_core_reset() and make it -consistent with the other "wait for AHB master IDLE state" ocurrences. - -This fixes a problem for me where dwc2 would not want to initialize when -updating to 4.19 on a MIPS Lantiq VRX200 SoC. dwc2 worked fine with -4.14. -Testing on my board shows that it takes 180us until AHB master IDLE -state is signalled. The very old vendor driver for this SoC (ifxhcd) -used a 1 second timeout. -Use the same timeout that is used everywhere when polling for -GRSTCTL_AHBIDLE instead of using a timeout that "works for one board" -(180us in my case) to have consistent behavior across the dwc2 driver. - -Cc: linux-stable <stable@vger.kernel.org> # 4.19+ -Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> ---- - drivers/usb/dwc2/core.c | 2 +- - 1 file changed, 1 insertion(+), 1 deletion(-) - ---- a/drivers/usb/dwc2/core.c -+++ b/drivers/usb/dwc2/core.c -@@ -531,7 +531,7 @@ int dwc2_core_reset(struct dwc2_hsotg *h - } - - /* Wait for AHB master IDLE state */ -- if (dwc2_hsotg_wait_bit_set(hsotg, GRSTCTL, GRSTCTL_AHBIDLE, 50)) { -+ if (dwc2_hsotg_wait_bit_set(hsotg, GRSTCTL, GRSTCTL_AHBIDLE, 10000)) { - dev_warn(hsotg->dev, "%s: HANG! AHB Idle timeout GRSTCTL GRSTCTL_AHBIDLE\n", - __func__); - return -EBUSY; |