shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-08 03:40:35 +09:00
Code Issues Packages Projects Releases Wiki Activity

UPSTREAM: usb: dwc2: disable lpm feature on Rockchip SoCs

Browse Source 
LPM feature of DWC2 module integrated in Rockchip SoCs doesn't work
properly or needs some additional handling, so disable it for now.
Without disabling LPM feature, the USB ADB communication fail with
the following error log:

dwc2 ff580000.usb: new address 27
dwc2 ff580000.usb: Failed to exit L1 sleep state in 200us.
dwc2 ff580000.usb: dwc2_hsotg_send_reply: cannot queue req
dwc2 ff580000.usb: dwc2_hsotg_process_req_status: failed to send reply
dwc2 ff580000.usb: dwc2_hsotg_enqueue_setup: failed queue (-11)
dwc2 ff580000.usb: Failed to exit L1 sleep state in 200us.

[diff vs vendor kernel: added lpm_clock_gating, besl and
 hird_threshold_en settings as seen in  commit 53febc9569 ("usb: dwc2:
 disable Link Power Management on STM32MP15 HS OTG")]

Signed-off-by: William Wu <william.wu@rock-chips.com>
Signed-off-by: Frank Wang <frank.wang@rock-chips.com>
Signed-off-by: Quentin Schulz <quentin.schulz@theobroma-systems.com>
Link: https://lore.kernel.org/r/20221206-dwc2-gadget-dual-role-v1-1-36515e1092cd@theobroma-systems.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 42a317d076)
Change-Id: I96a344c5e3940907b6f470110c843b69c68b60b7
This commit is contained in:
Quentin Schulz
2022-12-07 14:19:16 +01:00
committed by Tao Huang
parent fa7c72a7cf
commit 4041c1759e
1 changed files with 4 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/usb/dwc2/params.c
View File

@@ -113,8 +113,11 @@ static void dwc2_set_rk_params(struct dwc2_hsotg *hsotg)
p->ahbcfg = GAHBCFG_HBSTLEN_INCR16 <<
GAHBCFG_HBSTLEN_SHIFT;
p->power_down = DWC2_POWER_DOWN_PARAM_NONE;
p->lpm = false;
p->g_dma_desc = false;
p->lpm = false;
p->lpm_clock_gating = false;
p->besl = false;
p->hird_threshold_en = false;
}
static void dwc2_set_ltq_params(struct dwc2_hsotg *hsotg)