linux-kernel - Re: [PATCH 2/3] rtc: imx-sc: Make compatible string more generic

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Message-ID: <CAOMZO5BCuBKHs1jXkm3qFD84_xcB=0NSwE3SLJHx9kq4Stbd_A@mail.gmail.com>
Date:   Tue, 11 Jun 2019 17:32:13 -0300
From:   Fabio Estevam <festevam@...il.com>
To:     Yongcai Huang <Anson.Huang@....com>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Sascha Hauer <kernel@...gutronix.de>,
        Alessandro Zummo <a.zummo@...ertech.it>,
        alexandre.belloni@...tlin.com, Dong Aisheng <aisheng.dong@....com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Peng Fan <peng.fan@....com>,
        Daniel Baluta <daniel.baluta@....com>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" 
        <linux-arm-kernel@...ts.infradead.org>,
        "open list:REAL TIME CLOCK (RTC) SUBSYSTEM" 
        <linux-rtc@...r.kernel.org>, NXP Linux Team <Linux-imx@....com>
Subject: Re: [PATCH 2/3] rtc: imx-sc: Make compatible string more generic

Hi Anson,

On Tue, Jun 11, 2019 at 3:31 AM <Anson.Huang@....com> wrote:
>
> From: Anson Huang <Anson.Huang@....com>
>
> i.MX system controller RTC driver can support all i.MX SoCs
> with system controller inside, this patch makes the compatible
> string more generic to support other i.MX SoCs with system
> controller inside, such as i.MX8QM etc..
>
> Signed-off-by: Anson Huang <Anson.Huang@....com>
> ---
>  drivers/rtc/rtc-imx-sc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/rtc/rtc-imx-sc.c b/drivers/rtc/rtc-imx-sc.c
> index c933045..38ef3ca 100644
> --- a/drivers/rtc/rtc-imx-sc.c
> +++ b/drivers/rtc/rtc-imx-sc.c
> @@ -178,7 +178,7 @@ static int imx_sc_rtc_probe(struct platform_device *pdev)
>  }
>
>  static const struct of_device_id imx_sc_dt_ids[] = {
> -       { .compatible = "fsl,imx8qxp-sc-rtc", },
> +       { .compatible = "fsl,imx-sc-rtc", },

What is wrong with the current compatible string?

If you want to support i.MX8QM just add in its dtsi:

compatible = "fsl,imx8qm-sc-rtc", "fsl,imx8qxp-sc-rtc"

and add a dt-bindings entry for "fsl,imx8qm-sc-rtc"