mirror of
https://github.com/archlinuxarm/PKGBUILDs.git
synced 2024-09-19 22:08:32 +00:00
45 lines
1.6 KiB
Diff
45 lines
1.6 KiB
Diff
|
From 917f2c7ef10029386dc0a0e3046aa5087499e94a Mon Sep 17 00:00:00 2001
|
||
|
|
From: Hal Emmerich <hal@halemmerich.com>
|
||
|
|
Date: Thu, 19 Jul 2018 21:48:08 -0500
|
||
|
|
Subject: [PATCH 14/14] usb: dwc2: disable power_down on rockchip devices
|
||
|
|
|
||
|
|
The bug would let the usb controller enter partial power down,
|
||
|
|
which was formally known as hibernate, upon boot if nothing was plugged
|
||
|
|
in to the port. Partial power down couldn't be exited properly, so any
|
||
|
|
usb devices plugged in after boot would not be usable.
|
||
|
|
|
||
|
|
Before the name change, params.hibernation was false by default, so
|
||
|
|
_dwc2_hcd_suspend() would skip entering hibernation. With the
|
||
|
|
rename, _dwc2_hcd_suspend() was changed to use params.power_down
|
||
|
|
to decide whether or not to enter partial power down.
|
||
|
|
|
||
|
|
Since params.power_down is non-zero by default, it needs to be set
|
||
|
|
to 0 for rockchip devices to restore functionality.
|
||
|
|
|
||
|
|
This bug was reported in the linux-usb thread:
|
||
|
|
REGRESSION: usb: dwc2: USB device not seen after boot
|
||
|
|
|
||
|
|
The commit that caused this regression is:
|
||
|
|
6d23ee9caa6790aea047f9aca7f3c03cb8d96eb6
|
||
|
|
|
||
|
|
Signed-off-by: Hal Emmerich <hal@halemmerich.com>
|
||
|
|
---
|
||
|
|
drivers/usb/dwc2/params.c | 1 +
|
||
|
|
1 file changed, 1 insertion(+)
|
||
|
|
|
||
|
|
diff --git a/drivers/usb/dwc2/params.c b/drivers/usb/dwc2/params.c
|
||
|
|
index af075d4da895..f621970d3979 100644
|
||
|
|
--- a/drivers/usb/dwc2/params.c
|
||
|
|
+++ b/drivers/usb/dwc2/params.c
|
||
|
|
@@ -83,6 +83,7 @@ static void dwc2_set_rk_params(struct dwc2_hsotg *hsotg)
|
||
|
|
p->host_perio_tx_fifo_size = 256;
|
||
|
|
p->ahbcfg = GAHBCFG_HBSTLEN_INCR16 <<
|
||
|
|
GAHBCFG_HBSTLEN_SHIFT;
|
||
|
|
+ p->power_down = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void dwc2_set_ltq_params(struct dwc2_hsotg *hsotg)
|
||
|
|
--
|
||
|
|
2.19.0
|
||
|
|
|