Re: [PATCH v2] ARM: i.MX: sabresd: Add support for i.MX6QP board variant

[Bastian Krause <bst@pengutronix.de>]

On 4/22/21 5:14 PM, Bastian Krause wrote:
> On 4/15/21 5:31 PM, Lucas Stach wrote:
>> Am Donnerstag, dem 15.04.2021 um 17:12 +0200 schrieb Sascha Hauer:
>>> On Thu, Apr 15, 2021 at 04:59:30PM +0200, Lucas Stach wrote:
>>>> Am Donnerstag, dem 15.04.2021 um 16:03 +0200 schrieb Sascha Hauer:
>>>>> The SabreSD comes with different SoC variants. This patch adds support
>>>>> for the i.MX6QP based board. the DCD data has been taken from U-Boot
>>>>> 2021.04
>>>>>
>>>>> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
>>>>> ---
>>>>>
>>>> [...]
>>>>> new file mode 100644
>>>>> index 0000000000..52cc8aa73b
>>>>> --- /dev/null
>>>>> +++ b/arch/arm/dts/imx6qp-sabresd.dts
>>>>> @@ -0,0 +1,42 @@
>>>>> +/*
>>>>> + * Copyright 2012 Freescale Semiconductor, Inc.
>>>>> + * Copyright 2011 Linaro Ltd.
>>>>> + *
>>>>> + * The code contained herein is licensed under the GNU General Public
>>>>> + * License. You may obtain a copy of the GNU General Public License
>>>>> + * Version 2 or later at the following locations:
>>>>> + *
>>>>> + * http://www.opensource.org/licenses/gpl-license.html
>>>>> + * http://www.gnu.org/copyleft/gpl.html
>>>>> + */
>>>>> +
>>>>> +#include <arm/imx6qp-sabresd.dts>
>>>>> +
>>>>> +/ {
>>>>> +	model = "Freescale i.MX6 Quad SABRE Smart Device Board";
>>>>> +	compatible = "fsl,imx6q-sabresd", "fsl,imx6q";
>>>>
>>>> I'm not sure I like this overwriting of the compatible string. AFAICS
>>>> we don't have any instances for "fsl,imx6qp" compatible checks in
>>>> either Barebox or Linux kernel, so it shouldn't cause any immediate
>>>> damage, but this still feels wrong.
>>>
>>> It's overwritten with the same strings as the included upstream dts has.
>>> Anyway, as you say overwriting them here seems wrong. I removed it.
>>
>> You had me confused for bit here, so I just checked and the compatible
>> in the included upstream dts is different, as expected:
>>
>> compatible = "fsl,imx6qp-sabresd", "fsl,imx6qp";
>>
>> So now that you removed those lines, does you board file need fixing
>> for the different compatibles?
> 
> My board works fine (bootspec-wise) with the dropped compatible.

What's the state of this patch, Sascha?

Regards,
Bastian

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