linux-kernel - Re: [PATCH 2/2] gpio: sprd: Change to use SoC compatible string

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Date:   Wed, 13 Feb 2019 13:59:21 +0100
From:   Bartosz Golaszewski <bgolaszewski@...libre.com>
To:     Baolin Wang <baolin.wang@...aro.org>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Orson Zhai <orsonzhai@...il.com>,
        Lyra Zhang <zhang.lyra@...il.com>,
        Mark Brown <broonie@...nel.org>,
        linux-devicetree <devicetree@...r.kernel.org>,
        linux-gpio <linux-gpio@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/2] gpio: sprd: Change to use SoC compatible string

śr., 13 lut 2019 o 13:49 Baolin Wang <baolin.wang@...aro.org> napisał(a):
>
> Change to use SoC compatible string instead of wildcard string.
>
> Signed-off-by: Baolin Wang <baolin.wang@...aro.org>
> ---
>  drivers/gpio/gpio-pmic-eic-sprd.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpio/gpio-pmic-eic-sprd.c b/drivers/gpio/gpio-pmic-eic-sprd.c
> index ac573da..24228cf 100644
> --- a/drivers/gpio/gpio-pmic-eic-sprd.c
> +++ b/drivers/gpio/gpio-pmic-eic-sprd.c
> @@ -364,7 +364,7 @@ static int sprd_pmic_eic_probe(struct platform_device *pdev)
>  }
>
>  static const struct of_device_id sprd_pmic_eic_of_match[] = {
> -       { .compatible = "sprd,sc27xx-eic", },
> +       { .compatible = "sprd,sc2731-eic", },
>         { /* end of list */ }
>  };
>  MODULE_DEVICE_TABLE(of, sprd_pmic_eic_of_match);
> --
> 1.7.9.5
>

We guarantee to make older device-trees to work with new kernel so you
can add the new compatible, but you can't remove the old one.

Bart