[PATCH 1/7] dt-bindings: can: flexcan: fix imx8mp compatbile

[Joakim Zhang]

Hi Aisheng, Marc,

> -----Original Message-----
> From: Dong Aisheng <dongas86 at gmail.com>
> Sent: 2021年7月15日 18:46
> To: Marc Kleine-Budde <mkl at pengutronix.de>
> Cc: Aisheng Dong <aisheng.dong at nxp.com>; devicetree
> <devicetree at vger.kernel.org>; moderated list:ARM/FREESCALE IMX / MXC
> ARM ARCHITECTURE <linux-arm-kernel at lists.infradead.org>; dl-linux-imx
> <linux-imx at nxp.com>; Sascha Hauer <kernel at pengutronix.de>; Rob Herring
> <robh+dt at kernel.org>; Shawn Guo <shawnguo at kernel.org>; Joakim Zhang
> <qiangqing.zhang at nxp.com>; linux-can at vger.kernel.org;
> netdev at vger.kernel.org
> Subject: Re: [PATCH 1/7] dt-bindings: can: flexcan: fix imx8mp compatbile
> 
> Hi Marc,
> 
> On Thu, Jul 15, 2021 at 5:12 PM Marc Kleine-Budde <mkl at pengutronix.de>
> wrote:
> >
> > On 15.07.2021 16:25:30, Dong Aisheng wrote:
> > > This patch fixes the following errors during make dtbs_check:
> > > arch/arm64/boot/dts/freescale/imx8mp-evk.dt.yaml: can at 308c0000:
> compatible: 'oneOf' conditional failed, one must be fixed:
> > >       ['fsl,imx8mp-flexcan', 'fsl,imx6q-flexcan'] is too long
> >
> > IIRC the fsl,imx6q-flexcan binding doesn't work on the imx8mp. Maybe
> > better change the dtsi?
> 
> I checked with Joakim that the flexcan on MX8MP is derived from MX6Q with
> extra ECC added. Maybe we should still keep it from HW point of view?

Sorry, Aisheng, I double check the history, and get the below results:

8MP reuses 8QXP(8QM), except ECC_EN (ipv_flexcan3_syn_006/D_IP_FlexCAN3_SYN_057 which corresponds to version d_ip_flexcan3_syn.03.00.17.01)

I prefer to change the dtsi as Mac suggested if possible, shall I send a fix patch?
 
Best Regards,
Joakim Zhang
> Regards
> Aisheng
> 
> >
> > regards,
> > Marc
> >
> > --
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