Re: [PATCH 1/1] v4l: omap4iss: Fix dual lane camera mode problem

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Hi Marina,

On Mon, Nov 10, 2014 at 10:11:31AM +0200, Marina Vasilevsky wrote:
> ---
>  drivers/staging/media/omap4iss/iss_csiphy.c |    3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/staging/media/omap4iss/iss_csiphy.c
> b/drivers/staging/media/omap4iss/iss_csiphy.c
> index 7c3d55d..b6e0b32 100644
> --- a/drivers/staging/media/omap4iss/iss_csiphy.c
> +++ b/drivers/staging/media/omap4iss/iss_csiphy.c
> @@ -196,8 +196,7 @@ int omap4iss_csiphy_config(struct iss_device *iss,
>          return -EINVAL;
> 
>      csi2_ddrclk_khz = pipe->external_rate / 1000
> -        / (2 * csi2->phy->used_data_lanes)
> -        * pipe->external_bpp;
> +        / 2 * pipe->external_bpp;
> 
>      /*
>       * THS_TERM: Programmed value = ceil(12.5 ns/DDRClk period) - 1.
> -- 
> 
> Hello,
> 
> I tested this fix with OMAP4 connected to OV5640 camera using 2 lanes.
> Have anybody tested other camera with 2 lanes connected to OMAP?
> 
> The value csi2_ddrclk_khz is different per camera.
> I have also driver for OV7695. Current iss params structure does not
> allow to configure it properly from board file.

Are you certain the pixel rate value provided by the sensor driver is
correct?

The formula in iss_csiphy.c is fine as far as I understand.

-- 
Kind regards,

Sakari Ailus
e-mail: sakari.ailus@xxxxxx	XMPP: sailus@xxxxxxxxxxxxxx
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