A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-07 20:33:58 -04:00
Code Issues Projects Releases Packages Wiki Activity

usb: phy: snps: Enable autoresume for FS/HS peripherals only

Browse source 
Currently the driver enables autoresume for all the connected
peripherals. In a case where an LS device is connected but fails
the enumeration, this autoresume enablement is leading to PHY
keeping the Dm pulled up even when the peripheral is detached.
Hence, the detach hs_phy_irq is never fired and disconnect is
not processed.
Since remote wakeup from LS peripherals is not a requirement on
our platforms, enable autoresume for FS/HS devices only.

Change-Id: I0a62d08e58af18b523af322c64529f5183d55907
Signed-off-by: Ajay Agarwal <ajaya@codeaurora.org>
This commit is contained in:
Ajay Agarwal 2021-01-25 18:48:47 +05:30 • committed by Gerrit - the friendly Code Review server
commit 4ee28c3cb7
1 changed files with 4 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

9
drivers/usb/phy/phy-msm-snps-hs.c
View file

@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2017-2020, The Linux Foundation. All rights reserved.
* Copyright (c) 2017-2021, The Linux Foundation. All rights reserved.
*/
#include <linux/module.h>
@ -487,12 +487,11 @@ static int msm_hsphy_set_suspend(struct usb_phy *uphy, int suspend)
suspend:
if (suspend) { /* Bus suspend */
if (phy->cable_connected) {
/* Enable auto-resume functionality only during host
* mode bus suspend with some peripheral connected.
/* Enable auto-resume functionality during host mode
* bus suspend with some FS/HS peripheral connected.
*/
if ((phy->phy.flags & PHY_HOST_MODE) &&
((phy->phy.flags & PHY_HSFS_MODE) ||
(phy->phy.flags & PHY_LS_MODE))) {
(phy->phy.flags & PHY_HSFS_MODE)) {
/* Enable auto-resume functionality by pulsing
* signal
*/