linux-kernel - Re: [PATCH v2 03/11] i2c: brcmstb: Convert to devm_platform_ioremap

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Message-ID: <CAKekbeux2ApVp1Jcjdn-+8CS+hGtR5LGE2kL_x12MOzq41ZF-w@mail.gmail.com>
Date:   Mon, 10 Jul 2023 14:21:11 -0400
From:   Kamal Dasu <kamal.dasu@...adcom.com>
To:     Yangtao Li <frank.li@...o.com>
Cc:     Broadcom internal kernel review list 
        <bcm-kernel-feedback-list@...adcom.com>,
        Andi Shyti <andi.shyti@...nel.org>,
        Florian Fainelli <florian.fainelli@...adcom.com>,
        linux-i2c@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 03/11] i2c: brcmstb: Convert to devm_platform_ioremap_resource()

On Mon, Jul 10, 2023 at 2:34 AM Yangtao Li <frank.li@...o.com> wrote:
>
> Use devm_platform_ioremap_resource() to simplify code.
>
> Signed-off-by: Yangtao Li <frank.li@...o.com>

Reviewed-by:  Kamal Dasu <kamal.dasu@...adcom.com>
> ---
>  drivers/i2c/busses/i2c-brcmstb.c | 19 ++++++-------------
>  1 file changed, 6 insertions(+), 13 deletions(-)
>
> diff --git a/drivers/i2c/busses/i2c-brcmstb.c b/drivers/i2c/busses/i2c-brcmstb.c
> index cf92cbcb8c86..0d422487161a 100644
> --- a/drivers/i2c/busses/i2c-brcmstb.c
> +++ b/drivers/i2c/busses/i2c-brcmstb.c
> @@ -594,11 +594,10 @@ static int bcm2711_release_bsc(struct brcmstb_i2c_dev *dev)
>
>  static int brcmstb_i2c_probe(struct platform_device *pdev)
>  {
> -       int rc = 0;
>         struct brcmstb_i2c_dev *dev;
>         struct i2c_adapter *adap;
> -       struct resource *iomem;
>         const char *int_name;
> +       int rc;
>
>         /* Allocate memory for private data structure */
>         dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
> @@ -614,18 +613,15 @@ static int brcmstb_i2c_probe(struct platform_device *pdev)
>         init_completion(&dev->done);
>
>         /* Map hardware registers */
> -       iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> -       dev->base = devm_ioremap_resource(dev->device, iomem);
> -       if (IS_ERR(dev->base)) {
> -               rc = -ENOMEM;
> -               goto probe_errorout;
> -       }
> +       dev->base = devm_platform_ioremap_resource(pdev, 0);
> +       if (IS_ERR(dev->base))
> +               return PTR_ERR(dev->base);
>
>         if (of_device_is_compatible(dev->device->of_node,
>                                     "brcm,bcm2711-hdmi-i2c")) {
>                 rc = bcm2711_release_bsc(dev);
>                 if (rc)
> -                       goto probe_errorout;
> +                       return rc;
>         }
>
>         rc = of_property_read_string(dev->device->of_node, "interrupt-names",
> @@ -678,16 +674,13 @@ static int brcmstb_i2c_probe(struct platform_device *pdev)
>         adap->dev.of_node = pdev->dev.of_node;
>         rc = i2c_add_adapter(adap);
>         if (rc)
> -               goto probe_errorout;
> +               return rc;
>
>         dev_info(dev->device, "%s@...z registered in %s mode\n",
>                  int_name ? int_name : " ", dev->clk_freq_hz,
>                  (dev->irq >= 0) ? "interrupt" : "polling");
>
>         return 0;
> -
> -probe_errorout:
> -       return rc;
>  }
>
>  static void brcmstb_i2c_remove(struct platform_device *pdev)
> --
> 2.39.0
>

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