linux-kernel - Re: [PATCH v2 3/6] ARM: at91: Add armv7m support

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Message-ID: <5506721.HBUId2vnJb@wuerfel>
Date:   Thu, 20 Oct 2016 11:52:20 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     linux-arm-kernel@...ts.infradead.org
Cc:     Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
        Nicolas Ferre <nicolas.ferre@...el.com>,
        linux-kernel@...r.kernel.org,
        Szemző András <sza@....hu>
Subject: Re: [PATCH v2 3/6] ARM: at91: Add armv7m support

On Thursday, October 20, 2016 11:41:32 AM CEST Alexandre Belloni wrote:
> +
> +static void __init samx7_dt_device_init(void)
> +{
> +       struct soc_device *soc;
> +       struct device *soc_dev = NULL;
> +
> +       soc = at91_soc_init(samx7_socs);
> +       if (soc)
> +               soc_dev = soc_device_to_device(soc);
> +
> +       of_platform_populate(NULL, of_default_bus_match_table, NULL, soc_dev);
> +}

This was initially the idea for the soc_device, but we've stopped
using it as the parent for the on-chip devices a while ago.

Just register the device for identification here, and use
of_platform_default_populate with a NULL parent as most others do.

We should also investigate whether we can convert the three other
at91 variants to do the same without breaking expectations in user space.

	Arnd