linux-kernel - Re: [PATCH v3 02/14] gpu: ipu-csi: Check for field type alternate

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Message-ID: <1533202966.3516.9.camel@pengutronix.de>
Date:   Thu, 02 Aug 2018 11:42:46 +0200
From:   Philipp Zabel <p.zabel@...gutronix.de>
To:     Steve Longerbeam <slongerbeam@...il.com>,
        linux-media@...r.kernel.org
Cc:     Steve Longerbeam <steve_longerbeam@...tor.com>,
        "open list:DRM DRIVERS FOR FREESCALE IMX" 
        <dri-devel@...ts.freedesktop.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 02/14] gpu: ipu-csi: Check for field type alternate

Hi Steve,

On Wed, 2018-08-01 at 12:12 -0700, Steve Longerbeam wrote:
> When the CSI is receiving from a bt.656 bus, include a check for
> field type 'alternate' when determining whether to set CSI clock
> mode to CCIR656_INTERLACED or CCIR656_PROGRESSIVE.
> 
> Signed-off-by: Steve Longerbeam <steve_longerbeam@...tor.com>
> ---
>  drivers/gpu/ipu-v3/ipu-csi.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/ipu-v3/ipu-csi.c b/drivers/gpu/ipu-v3/ipu-csi.c
> index caa05b0..5450a2d 100644
> --- a/drivers/gpu/ipu-v3/ipu-csi.c
> +++ b/drivers/gpu/ipu-v3/ipu-csi.c
> @@ -339,7 +339,8 @@ static void fill_csi_bus_cfg(struct ipu_csi_bus_config *csicfg,
>  		break;
>  	case V4L2_MBUS_BT656:
>  		csicfg->ext_vsync = 0;
> -		if (V4L2_FIELD_HAS_BOTH(mbus_fmt->field))
> +		if (V4L2_FIELD_HAS_BOTH(mbus_fmt->field) ||
> +		    mbus_fmt->field == V4L2_FIELD_ALTERNATE)
>  			csicfg->clk_mode = IPU_CSI_CLK_MODE_CCIR656_INTERLACED;
>  		else
>  			csicfg->clk_mode = IPU_CSI_CLK_MODE_CCIR656_PROGRESSIVE;

this patch is already merged in v4.18-rc7.

regards
Philipp