Re: [PATCH 01/18] thermal: exynos: fix setting rising_threshold for Exynos5433

Daniel Lezcano
2018-04-30T14:36:56Z

On Thu, Apr 26, 2018 at 01:51:16PM +0200, Bartlomiej Zolnierkiewicz wrote:
> Add missing clearing of the previous value when setting rising
> temperature threshold.
>
> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
> ---
> drivers/thermal/samsung/exynos_tmu.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
> index cda716c..523d26e 100644
> --- a/drivers/thermal/samsung/exynos_tmu.c
> +++ b/drivers/thermal/samsung/exynos_tmu.c
> @@ -577,6 +577,7 @@ static int exynos5433_tmu_initialize(struct platform_device *pdev)
> threshold_code = temp_to_code(data, temp);
>
> rising_threshold = readl(data->base + rising_reg_offset);
> + rising_threshold &= ~(0xff << j * 8);
> rising_threshold |= (threshold_code << j * 8);

Bartlomiej,

I see this code is duplicated all around the driver, so I can't blame you to
fix it in the same way it is written today but this is not how to deal with
fields in a register mapping. Can you fix it by adding correct macros with
masks?

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