linux-kernel - Re: [PATCH 6/9] drm: atmel_hlcdc: Add support for XLCDC in atmel LCD driver

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Message-ID: <20230613-recant-citadel-a3d3878ced06@spud>
Date:   Tue, 13 Jun 2023 19:17:04 +0100
From:   Conor Dooley <conor@...nel.org>
To:     Manikandan Muralidharan <manikandan.m@...rochip.com>
Cc:     lee@...nel.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        nicolas.ferre@...rochip.com, alexandre.belloni@...tlin.com,
        claudiu.beznea@...rochip.com, sam@...nborg.org,
        bbrezillon@...nel.org, airlied@...il.com, daniel@...ll.ch,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        Hari.PrasathGE@...rochip.com,
        Balamanikandan.Gunasundar@...rochip.com,
        Durai.ManickamKR@...rochip.com, Nayabbasha.Sayed@...rochip.com,
        Dharma.B@...rochip.com, Varshini.Rajendran@...rochip.com,
        Balakrishnan.S@...rochip.com
Subject: Re: [PATCH 6/9] drm: atmel_hlcdc: Add support for XLCDC in atmel LCD
 driver

On Tue, Jun 13, 2023 at 12:34:23PM +0530, Manikandan Muralidharan wrote:
> - XLCDC in SAM9X7 has different sets of registers and additional
> configuration bits when compared to previous HLCDC IP. Read/write
> operation on the controller registers is now separated using the
> XLCDC status flag.
> 	- HEO scaling, window resampling, Alpha blending, YUV-to-RGB
> conversion in XLCDC is derived and handled using additional
> configuration bits and registers.
> 	- Writing one to the Enable fields of each layer in LCD_ATTRE
> is required to reflect the values set in Configuration, FBA, Enable
> registers of each layer
> 
> Signed-off-by: Manikandan Muralidharan <manikandan.m@...rochip.com>
> [Hari.PrasathGE@...rochip.com: update the attribute field for each layer]
> Signed-off-by: Hari Prasath Gujulan Elango <Hari.PrasathGE@...rochip.com>
> [durai.manickamkr@...rochip.com: implement status flag to seprate register update]

These things inside [] look suspiciously like they should be
co-developed-bys...


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