linux-kernel - Re: [PATCH] i.MX6: Support 16-bit BT.1120 video input

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Message-ID: <20211006084526.GA2048@kadam>
Date:   Wed, 6 Oct 2021 11:45:26 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     Krzysztof Hałasa <khalasa@...p.pl>
Cc:     Philipp Zabel <p.zabel@...gutronix.de>,
        Steve Longerbeam <slongerbeam@...il.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        linux-kernel@...r.kernel.org, linux-media@...r.kernel.org,
        linux-staging@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] i.MX6: Support 16-bit BT.1120 video input

On Wed, Oct 06, 2021 at 08:13:48AM +0200, Krzysztof Hałasa wrote:
> @@ -373,11 +387,18 @@ static int fill_csi_bus_cfg(struct ipu_csi_bus_config *csicfg,
>  		break;
>  	case V4L2_MBUS_BT656:
>  		csicfg->ext_vsync = 0;
> +		/* UYVY10_1X20 etc. should be supported as well */
> +		is_bt1120 = mbus_fmt->code == MEDIA_BUS_FMT_UYVY8_1X16 ||
> +			mbus_fmt->code == MEDIA_BUS_FMT_YUYV8_1X16;

Could you align better for readability, otherwise it's harder to spot
the two characters which are swapped between those to macros.  (Also
it's basically normal for both sides of a || to be aligned...)

		is_bt1120 = (mbus_fmt->code == MEDIA_BUS_FMT_UYVY8_1X16 ||
			     mbus_fmt->code == MEDIA_BUS_FMT_YUYV8_1X16);

>  		if (V4L2_FIELD_HAS_BOTH(mbus_fmt->field) ||
>  		    mbus_fmt->field == V4L2_FIELD_ALTERNATE)
> -			csicfg->clk_mode = IPU_CSI_CLK_MODE_CCIR656_INTERLACED;
> +			csicfg->clk_mode = is_bt1120 ?
> +				IPU_CSI_CLK_MODE_CCIR1120_INTERLACED_SDR :
> +				IPU_CSI_CLK_MODE_CCIR656_INTERLACED;
>  		else
> -			csicfg->clk_mode = IPU_CSI_CLK_MODE_CCIR656_PROGRESSIVE;
> +			csicfg->clk_mode = is_bt1120 ?
> +				IPU_CSI_CLK_MODE_CCIR1120_PROGRESSIVE_SDR :
> +				IPU_CSI_CLK_MODE_CCIR656_PROGRESSIVE;
>  		break;
>  	case V4L2_MBUS_CSI2_DPHY:
>  		/*

regards,
dan carpenter