Re: [PATCH v3] drm: mxsfb_crtc: Reset the eLCDIF controller

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On 05/22/2017 03:55 PM, Fabio Estevam wrote:
> Hi Marek,
> 
> On Fri, May 5, 2017 at 3:01 PM, Fabio Estevam <fabio.estevam@xxxxxxx> wrote:
>> According to the eLCDIF initialization steps listed in the MX6SX
>> Reference Manual the eLCDIF block reset is mandatory.
>>
>> Without performing the eLCDIF reset the display shows garbage content
>> when the kernel boots.
>>
>> In earlier tests this issue has not been observed because the bootloader
>> was previously showing a splash screen and the bootloader display driver
>> does properly implement the eLCDIF reset.
>>
>> Add the eLCDIF reset to the driver, so that it can operate correctly
>> independently of the bootloader.
>>
>> Tested on a imx6sx-sdb board.
>>
>> Cc: <stable@xxxxxxxxxxxxxxx>
>> Signed-off-by: Fabio Estevam <fabio.estevam@xxxxxxx>
>> ---
>> Changes since v2:
>>
>> - Remove unneeded udelay(1) - Marek
> 
> Any comments about v3?
> 
IMO it's OK.

Reviewed-by: Marek Vasut <marex@xxxxxxx>

-- 
Best regards,
Marek Vasut



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