On Mon, Nov 11, 2019 at 07:31:46AM +0100, gregkh@xxxxxxxxxxxxxxxxxxx wrote:
The patch below does not apply to the 4.14-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@xxxxxxxxxxxxxxx>.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 5e269324db5adb2f5f6ec9a93a9c7b0672932b47 Mon Sep 17 00:00:00 2001
From: Joakim Zhang <qiangqing.zhang@xxxxxxx>
Date: Thu, 15 Aug 2019 08:00:26 +0000
Subject: [PATCH] can: flexcan: disable completely the ECC mechanism
The ECC (memory error detection and correction) mechanism can be
activated or not, controlled by the ECCDIS bit in CAN_MECR. When
disabled, updates on indications and reporting registers are stopped.
So if want to disable ECC completely, had better assert ECCDIS bit, not
just mask the related interrupts.
Fixes: cdce844865be ("can: flexcan: add vf610 support for FlexCAN")
Signed-off-by: Joakim Zhang <qiangqing.zhang@xxxxxxx>
Cc: linux-stable <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx>
I've adjusted the patch to work around missing 88462d2a7830 ("can:
flexcan: Remodel FlexCAN register r/w APIs for big endian FlexCAN
controllers.") and queued it for 4.14-4.4.
--
Thanks,
Sasha
