Re: [PATCH AUTOSEL 5.11 05/67] can: flexcan: add CAN wakeup function for i.MX8QM

Hi Sasha,

On Wed, Feb 24, 2021 at 10:35 PM Sasha Levin [off-list ref] wrote:

From: Joakim Zhang <redacted>

[ Upstream commit 812f0116c66a3ebaf0b6062226aa85574dd79f67 ]

The System Controller Firmware (SCFW) is a low-level system function
which runs on a dedicated Cortex-M core to provide power, clock, and
resource management. It exists on some i.MX8 processors. e.g. i.MX8QM
(QM, QP), and i.MX8QX (QXP, DX). SCU driver manages the IPC interface
between host CPU and the SCU firmware running on M4.

For i.MX8QM, stop mode request is controlled by System Controller Unit(SCU)
firmware, this patch introduces FLEXCAN_QUIRK_SETUP_STOP_MODE_SCFW quirk
for this function.

Signed-off-by: Joakim Zhang <redacted>
Link: https://lore.kernel.org/r/20201106105627.31061-6-qiangqing.zhang@nxp.com (local)
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>

This is adding a new feature and not fixing a bug.

Why does it qualify for stable inclusion?