On 26.03.2023 14:37, Christophe JAILLET wrote:
> Use devm_clk_get_optional() instead of hand writing it.
> This saves some loC and improves the semantic.
>
> Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
Acked-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
> ---
> drivers/iommu/exynos-iommu.c | 24 ++++++++----------------
> 1 file changed, 8 insertions(+), 16 deletions(-)
>
> diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c
> index 483aaaeb6dae..867f409e0325 100644
> --- a/drivers/iommu/exynos-iommu.c
> +++ b/drivers/iommu/exynos-iommu.c
> @@ -747,22 +747,16 @@ static int exynos_sysmmu_probe(struct platform_device *pdev)
> return ret;
> }
>
> - data->clk = devm_clk_get(dev, "sysmmu");
> - if (PTR_ERR(data->clk) == -ENOENT)
> - data->clk = NULL;
> - else if (IS_ERR(data->clk))
> + data->clk = devm_clk_get_optional(dev, "sysmmu");
> + if (IS_ERR(data->clk))
> return PTR_ERR(data->clk);
>
> - data->aclk = devm_clk_get(dev, "aclk");
> - if (PTR_ERR(data->aclk) == -ENOENT)
> - data->aclk = NULL;
> - else if (IS_ERR(data->aclk))
> + data->aclk = devm_clk_get_optional(dev, "aclk");
> + if (IS_ERR(data->aclk))
> return PTR_ERR(data->aclk);
>
> - data->pclk = devm_clk_get(dev, "pclk");
> - if (PTR_ERR(data->pclk) == -ENOENT)
> - data->pclk = NULL;
> - else if (IS_ERR(data->pclk))
> + data->pclk = devm_clk_get_optional(dev, "pclk");
> + if (IS_ERR(data->pclk))
> return PTR_ERR(data->pclk);
>
> if (!data->clk && (!data->aclk || !data->pclk)) {
> @@ -770,10 +764,8 @@ static int exynos_sysmmu_probe(struct platform_device *pdev)
> return -ENOSYS;
> }
>
> - data->clk_master = devm_clk_get(dev, "master");
> - if (PTR_ERR(data->clk_master) == -ENOENT)
> - data->clk_master = NULL;
> - else if (IS_ERR(data->clk_master))
> + data->clk_master = devm_clk_get_optional(dev, "master");
> + if (IS_ERR(data->clk_master))
> return PTR_ERR(data->clk_master);
>
> data->sysmmu = dev;
Best regards
--
Marek Szyprowski, PhD
Samsung R&D Institute Poland
