linux-kernel - Re: [PATCH v3 6/8] drivers: soc: add support for exynos SROM driver

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Message-ID: <CAGcde9E+DELn_-ibE5+NtsrtBFNqG=AKF8wk=Yh8YYxZbk+v3w@mail.gmail.com>
Date:	Mon, 19 Oct 2015 19:58:55 +0530
From:	Pankaj Dubey <pankaj.dubey@...sung.com>
To:	LABBE Corentin <clabbe.montjoie@...il.com>
Cc:	linux-samsung-soc <linux-samsung-soc@...r.kernel.org>,
	linux-kernel@...r.kernel.org,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Kukjin Kim <kgene.kim@...sung.com>,
	Krzysztof Kozłowski <k.kozlowski@...sung.com>,
	p.fedin@...sung.com,
	"thomas.ab@...sung.com" <thomas.ab@...sung.com>
Subject: Re: [PATCH v3 6/8] drivers: soc: add support for exynos SROM driver

Hi,

Thanks for review.

On 13 October 2015 at 20:30, LABBE Corentin <clabbe.montjoie@...il.com> wrote:
> +static struct exynos_srom_reg_dump *exynos_srom_alloc_reg_dump(
> +               const unsigned long *rdump,
> +               unsigned long nr_rdump)
> +{
> +       struct exynos_srom_reg_dump *rd;
> +       unsigned int i;
> +
> +       rd = kcalloc(nr_rdump, sizeof(*rd), GFP_KERNEL);
> +       if (!rd)
> +               return NULL;
> +
> +       for (i = 0; i < nr_rdump; ++i)
> +               rd[i].offset = rdump[i];
> +
> +       return rd;
> +}
>
> You do not free rd anywhere in your code.
>

OK, I missed that, corrected in v4.

> +static int exynos_srom_probe(struct platform_device *pdev)
> +{
> +       struct device_node *np;
> +       struct device *dev = &pdev->dev;
> +
> +       np = dev->of_node;
>
> Are you sure that dev->of_node will be always set ?
> I see lots of driver who if (dev->of_node) {}
>

Taken care in v4.

> +       exynos_srom_base = of_iomap(np, 0);
> +
> +       if (!exynos_srom_base) {
> +               pr_err("iomap of exynos srom controller failed\n");
> +               return -ENOMEM;
> +       }
>
> You can use dev_err(dev, "") insted of pr_err
>

Taken care in v4.

> +
> +       exynos_srom_regs = exynos_srom_alloc_reg_dump(exynos_srom_offsets,
> +                       sizeof(exynos_srom_offsets));
> +
> +       if (!exynos_srom_regs) {
> +               iounmap(exynos_srom_regs);
> +               return -ENOMEM;
> +       }
> +
> +       return 0;
> +}
>
> Instead of using a global static exynos_srom_base/exynos_srom_regs, why you do not use platform_set_drvdata() ?
>

OK. Taken care in v4.

Posted v4 here

https://lkml.org/lkml/2015/10/19/278

Thanks,
Pankaj Dubey

> Regards
> LABBE Corentin
>
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