Re: [PATCH] media: i2c: ov5645: Fix power up sequence

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Hi Ezequiel,

On Wed, Jul 3, 2019 at 10:10 AM Ezequiel Garcia <ezequiel@xxxxxxxxxxxxx> wrote:
>
> This is mostly a port of Jacopo's fix:
>
>   commit aa4bb8b8838ffcc776a79f49a4d7476b82405349
>   Author: Jacopo Mondi <jacopo@xxxxxxxxxx>
>   Date:   Fri Jul 6 05:51:52 2018 -0400
>
>   media: ov5640: Re-work MIPI startup sequence
>
> In the OV5645 case, the changes are:
>
> - Move OV5645_IO_MIPI_CTRL00 (0x300e) out of the initial setting blob.
> - At set_power(1) time power up MIPI Tx/Rx and set data and clock lanes in
>   LP11 during 'sleep' and 'idle' with MIPI clock in non-continuous mode.
> - At set_power(0) time power down MIPI Tx/Rx (in addition to the current
>   power down of regulators and clock gating).
> - At s_stream time enable/disable the MIPI interface output.
>
> With this commit the sensor is able to enter LP-11 mode during power up,
> as expected by some CSI-2 controllers.
>
> Many thanks to Fabio Estevam for his help debugging this issue.
>
> Signed-off-by: Ezequiel Garcia <ezequiel@xxxxxxxxxxxxx>

With this patch the applied the OV5645 camera successfully enters in
LP-11 and the imx6 capture driver does not complain anymore.

Tested-by: Fabio Estevam <festevam@xxxxxxxxx>

Thanks!



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