netdev - Re: [PATCH can-next 04/21] can: rockchip_canfd: add driver for Rockchip CAN-FD controller

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Message-ID: <20240731-viridian-chimpanzee-of-opportunity-be6bfb-mkl@pengutronix.de>
Date: Wed, 31 Jul 2024 10:02:23 +0200
From: Marc Kleine-Budde <mkl@...gutronix.de>
To: Simon Horman <horms@...nel.org>
Cc: kernel@...gutronix.de, Vincent Mailhol <mailhol.vincent@...adoo.fr>, 
	"David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Heiko Stuebner <heiko@...ech.de>, Philipp Zabel <p.zabel@...gutronix.de>, 
	Elaine Zhang <zhangqing@...k-chips.com>, David Jander <david.jander@...tonic.nl>, 
	linux-can@...r.kernel.org, netdev@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-arm-kernel@...ts.infradead.org, linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH can-next 04/21] can: rockchip_canfd: add driver for
 Rockchip CAN-FD controller

On 30.07.2024 17:34:39, Simon Horman wrote:
> On Mon, Jul 29, 2024 at 03:05:35PM +0200, Marc Kleine-Budde wrote:
> > Add driver for the Rockchip CAN-FD controller.
> > 
> > The IP core on the rk3568v2 SoC has 12 documented errata. Corrections
> > for these errata will be added in the upcoming patches.
> > 
> > Since several workarounds are required for the TX path, only add the
> > base driver that only implements the RX path.
> > 
> > Although the RX path implements CAN-FD support, it's not activated in
> > ctrlmode_supported, as the IP core in the rk3568v2 has problems with
> > receiving or sending certain CAN-FD frames.
> > 
> > Signed-off-by: Marc Kleine-Budde <mkl@...gutronix.de>
> 
> ...
> 
> > +static void rkcanfd_get_berr_counter_raw(struct rkcanfd_priv *priv,
> > +					 struct can_berr_counter *bec)
> > +{
> > +	struct can_berr_counter bec_raw;
> > +
> > +	bec->rxerr = rkcanfd_read(priv, RKCANFD_REG_RXERRORCNT);
> > +	bec->txerr = rkcanfd_read(priv, RKCANFD_REG_TXERRORCNT);
> > +	bec_raw = *bec;
> 
> nit: bec_raw is assigned but otherwise unused
>      although this is addressed in patch 15 of this series.

Moved there.

Thanks,
Marc

-- 
Pengutronix e.K.                 | Marc Kleine-Budde          |
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