linux-kernel - Re: [PATCH 2/2] drm: lcdif: Add i.MX93 LCDIF support

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Message-ID: <ace76615-533a-9295-8271-95262859d287@denx.de>
Date:   Mon, 23 Jan 2023 16:57:25 +0100
From:   Marek Vasut <marex@...x.de>
To:     Liu Ying <victor.liu@....com>, dri-devel@...ts.freedesktop.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Cc:     stefan@...er.ch, airlied@...il.com, daniel@...ll.ch,
        robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        shawnguo@...nel.org, s.hauer@...gutronix.de, kernel@...gutronix.de,
        festevam@...il.com, linux-imx@....com
Subject: Re: [PATCH 2/2] drm: lcdif: Add i.MX93 LCDIF support

On 1/23/23 08:23, Liu Ying wrote:
> The LCDIF embedded in i.MX93 SoC is essentially the same to those
> in i.MX8mp SoC.  However, i.MX93 LCDIF may connect with MIPI DSI
> controller through LCDIF cross line pattern(controlled by mediamix
> blk-ctrl) or connect with LVDS display bridge(LDB) directly or a
> parallel display(also through mediamix blk-ctrl), so add multiple
> encoders(with DRM_MODE_ENCODER_NONE encoder type) support in the
> LCDIF DRM driver and find a bridge to attach the relevant encoder's
> chain when needed.  While at it, derive lcdif_crtc_state structure
> from drm_crtc_state structure to introduce bus_format and bus_flags
> states so that the next downstream bridges may use consistent bus
> format and bus flags.

Would it be possible to split this patch into preparatory clean up and 
i.MX93 addition ? It seems like the patch is doing two things according 
to the commit message.