drm: lcdif: Add multiple encoders and first bridges support

The single LCDIF embedded in i.MX93 SoC may drive multiple displays
simultaneously. Look at LCDIF output port's remote port parents to
find all enabled first bridges. Add an encoder for each found bridge
and attach the bridge to the encoder. This is a preparation for
adding i.MX93 LCDIF support.

Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Acked-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Liu Ying <victor.liu@nxp.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Marek Vasut <marex@denx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230510092450.4024730-6-victor.liu@nxp.com

drm: lcdif: Check consistent bus format and flags across first bridges

The single LCDIF embedded in i.MX93 SoC may drive multiple displays
simultaneously. Check bus format and flags across first bridges in
->atomic_check() to ensure they are consistent. This is a preparation
for adding i.MX93 LCDIF support.

Acked-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Liu Ying <victor.liu@nxp.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230510092450.4024730-5-victor.liu@nxp.com

drm/lcdif: Clean up headers

Drop unneeded headers, sort rest alphabetically, no functional change.

Acked-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Liu Ying <victor.liu@nxp.com>
Reported-by: Liu Ying <victor.liu@oss.nxp.com>
Tested-by: Martyn Welch <martyn.welch@collabora.com>
Fixes: 9db35bb349a0e ("drm: lcdif: Add support for i.MX8MP LCDIF variant")
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Alexander Stein <alexander.stein@ew.tq-group.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Liu Ying <victor.liu@nxp.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Marek Vasut <marex@denx.de>
Cc: Martyn Welch <martyn.welch@collabora.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Robby Cai <robby.cai@nxp.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Stefan Agner <stefan@agner.ch>
Reviewed-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220819140852.255187-1-marex@denx.de

drm: lcdif: Add support for i.MX8MP LCDIF variant

Add support for i.MX8MP LCDIF variant. This is called LCDIFv3 and is
completely different from the LCDIFv3 found in i.MX23 in that it has
a completely scrambled register layout compared to all previous LCDIF
variants. The new LCDIFv3 also supports 36bit address space.

Add a separate driver which is really a fork of MXSFB driver with the
i.MX8MP LCDIF variant handling filled in.

Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Tested-by: Martyn Welch <martyn.welch@collabora.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Alexander Stein <alexander.stein@ew.tq-group.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Robby Cai <robby.cai@nxp.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Stefan Agner <stefan@agner.ch>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220628174152.167284-2-marex@denx.de