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can: rcar_canfd: Fix controller mode setting

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[ Upstream commit 5cff263606a10102a0ea19ff579eaa18fd5577ad ]

Driver configures register to choose controller mode before
setting all channels to reset mode leading to failure.
The patch corrects operation of mode setting.

Signed-off-by: Duy Nguyen <duy.nguyen.rh@renesas.com>
Signed-off-by: Tranh Ha <tranh.ha.xb@renesas.com>
Link: https://patch.msgid.link/TYWPR01MB87434739F83E27EDCD23DF44B416A@TYWPR01MB8743.jpnprd01.prod.outlook.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Duy Nguyen
2025-09-18 07:03:45 +00:00
committed by Greg Kroah-Hartman
parent e93af78718
commit bf28f5db40
1 changed files with 4 additions and 3 deletions
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7
drivers/net/can/rcar/rcar_canfd.c
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@@ -738,9 +738,6 @@ static int rcar_canfd_reset_controller(struct rcar_canfd_global *gpriv)
/* Reset Global error flags */
rcar_canfd_write(gpriv->base, RCANFD_GERFL, 0x0);
/* Set the controller into appropriate mode */
rcar_canfd_set_mode(gpriv);
/* Transition all Channels to reset mode */
for_each_set_bit(ch, &gpriv->channels_mask, gpriv->info->max_channels) {
rcar_canfd_clear_bit(gpriv->base,
@@ -760,6 +757,10 @@ static int rcar_canfd_reset_controller(struct rcar_canfd_global *gpriv)
return err;
}
}
/* Set the controller into appropriate mode */
rcar_canfd_set_mode(gpriv);
return 0;
}