linux-kernel - [PATCH v4 0/3] usb: meson: fix shared reset control use

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Message-Id: <20211205215846.153703-1-aouledameur@baylibre.com>
Date:   Sun,  5 Dec 2021 22:58:43 +0100
From:   Amjad Ouled-Ameur <aouledameur@...libre.com>
To:     khilman@...libre.com
Cc:     Amjad Ouled-Ameur <aouledameur@...libre.com>,
        p.zabel@...gutronix.de, balbi@...nel.org, jbrunet@...libre.com,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-usb@...r.kernel.org
Subject: [PATCH v4 0/3] usb: meson: fix shared reset control use

This patchset fixes a usb suspend warning seen on the libretech-cc by
using reset_control_rearm() call of the reset framework API. 
This call allows a reset consummer to release the reset line even when 
just triggered so that it may be triggered again by other reset
consummers.

reset_control_(de)assert() calls are called, in some meson usb drivers, 
on a shared reset line when reset_control_reset has been used. This is not
allowed by the reset framework.

Finally the meson usb drivers are updated to use this new call, which
solves the suspend issue addressed by the previous reverted 
commit 7a410953d1fb ("usb: dwc3: meson-g12a: fix shared reset control
use").

changes since v3:
- Remove unnecessary reset_control_rearm() after reset_control_reset() 
failure.
- Use dev_err_probe().

Amjad Ouled-Ameur (3):
  phy: amlogic: phy-meson-gxl-usb2: fix shared reset controller use
  phy: amlogic: meson8b-usb2: Use dev_err_probe()
  phy: amlogic: meson8b-usb2: fix shared reset control use

 drivers/phy/amlogic/phy-meson-gxl-usb2.c | 1 +
 drivers/phy/amlogic/phy-meson8b-usb2.c   | 9 +++++++--
 2 files changed, 8 insertions(+), 2 deletions(-)

-- 
2.25.1