This is a note to let you know that I've just added the patch titled
can: rcar_canfd: Fix data transmission failed on R-Car V3U
to the 5.18-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
can-rcar_canfd-fix-data-transmission-failed-on-r-car-v3u.patch
and it can be found in the queue-5.18 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 374e11f1bde91545674233459e5a0416ba842b69 Mon Sep 17 00:00:00 2001
From: Duy Nguyen <duy.nguyen.rh@xxxxxxxxxxx>
Date: Mon, 4 Jul 2022 16:46:11 +0900
Subject: can: rcar_canfd: Fix data transmission failed on R-Car V3U
From: Duy Nguyen <duy.nguyen.rh@xxxxxxxxxxx>
commit 374e11f1bde91545674233459e5a0416ba842b69 upstream.
On R-Car V3U, this driver should use suitable register offset instead of
other SoCs' one. Otherwise, data transmission failed on R-Car V3U.
Fixes: 45721c406dcf ("can: rcar_canfd: Add support for r8a779a0 SoC")
Link: https://lore.kernel.org/all/20220704074611.957191-1-yoshihiro.shimoda.uh@xxxxxxxxxxx
Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Signed-off-by: Duy Nguyen <duy.nguyen.rh@xxxxxxxxxxx>
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
Signed-off-by: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/can/rcar/rcar_canfd.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
--- a/drivers/net/can/rcar/rcar_canfd.c
+++ b/drivers/net/can/rcar/rcar_canfd.c
@@ -1334,7 +1334,10 @@ static void rcar_canfd_set_bittiming(str
cfg = (RCANFD_DCFG_DTSEG1(gpriv, tseg1) | RCANFD_DCFG_DBRP(brp) |
RCANFD_DCFG_DSJW(sjw) | RCANFD_DCFG_DTSEG2(gpriv, tseg2));
- rcar_canfd_write(priv->base, RCANFD_F_DCFG(ch), cfg);
+ if (is_v3u(gpriv))
+ rcar_canfd_write(priv->base, RCANFD_V3U_DCFG(ch), cfg);
+ else
+ rcar_canfd_write(priv->base, RCANFD_F_DCFG(ch), cfg);
netdev_dbg(priv->ndev, "drate: brp %u, sjw %u, tseg1 %u, tseg2 %u\n",
brp, sjw, tseg1, tseg2);
} else {
Patches currently in stable-queue which might be from duy.nguyen.rh@xxxxxxxxxxx are
queue-5.18/can-rcar_canfd-fix-data-transmission-failed-on-r-car-v3u.patch
