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Groups > linux.kernel > #1474250
| From | Javier Martinez Canillas <javier@osg.samsung.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH 1/2] ARM: dts: exynos: Fix mismatched value for SD4 pull up/down configuration on exynos4210 |
| Date | 2016-09-01 12:20 +0200 |
| Message-ID | <scxgd-rt-3@gated-at.bofh.it> (permalink) |
| References | <scvHr-78u-9@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Hello Krzysztof,
On 09/01/2016 10:37 AM, Krzysztof Kozlowski wrote:
> The pinctrl pull up/down register on exynos4210 is 2-bit wide for each
> pin and it accepts only values of 0, 1 and 3. The pins sd4-bus-width8
> were configured with value of 4. The driver does not validate the value
> so this overflow effectively set a bit 1 in adjacent pins thus
> configuring them to pull down.
>
> The author's intention was probably to set drive strength of 4x. All
> other bus-widths pins are configured with pull up and drive strength of
> 4x. Fix this one with same pattern.
>
> Fixes: 87711d8c7c70 ("ARM: dts: Add pinctrl node entries for SAMSUNG EXYNOS4210 SoC")
> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
> ---
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Best regards,
--
Javier Martinez Canillas
Open Source Group
Samsung Research America
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[PATCH 1/2] ARM: dts: exynos: Fix mismatched value for SD4 pull up/down configuration on exynos4210 Krzysztof Kozlowski <k.kozlowski@samsung.com> - 2016-09-01 10:40 +0200 Re: [PATCH 1/2] ARM: dts: exynos: Fix mismatched value for SD4 pull up/down configuration on exynos4210 Javier Martinez Canillas <javier@osg.samsung.com> - 2016-09-01 12:20 +0200 Re: [PATCH 1/2] ARM: dts: exynos: Fix mismatched value for SD4 pull up/down configuration on exynos4210 Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> - 2016-09-01 13:20 +0200
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