linux-kernel - Re: [PATCH v2 1/7] media: uapi: add MEDIA_BUS_FMT_RGB565_1X24

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Date:   Tue, 29 Nov 2022 14:39:25 +0200
From:   Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:     Maxime Ripard <maxime@...no.tech>
Cc:     Emma Anholt <emma@...olt.net>, Maxime Ripard <mripard@...nel.org>,
        Rob Herring <robh@...nel.org>, Daniel Vetter <daniel@...ll.ch>,
        Eric Anholt <eric@...olt.net>, David Airlie <airlied@...ux.ie>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Joerg Quinten <aBUGSworstnightmare@...il.com>,
        Chris Morgan <macromorgan@...mail.com>,
        Dave Stevenson <dave.stevenson@...pberrypi.com>
Subject: Re: [PATCH v2 1/7] media: uapi: add MEDIA_BUS_FMT_RGB565_1X24_CPADHI

On Tue, Nov 29, 2022 at 02:23:04PM +0200, Laurent Pinchart wrote:
> Hi Maxime and Chris,
> 
> Thank you for the patch.
> 
> On Thu, Oct 20, 2022 at 10:30:45AM +0200, Maxime Ripard wrote:
> > From: Chris Morgan <macromorgan@...mail.com>
> > 
> > Add the MEDIA_BUS_FMT_RGB565_1X24_CPADHI format used by the Geekworm
> > MZP280 panel for the Raspberry Pi.
> > 
> > Signed-off-by: Chris Morgan <macromorgan@...mail.com>
> > Signed-off-by: Maxime Ripard <maxime@...no.tech>
> 
> Reviewed-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>
> 
> > ---
> >  .../userspace-api/media/v4l/subdev-formats.rst     | 37 ++++++++++++++++++++++
> >  include/uapi/linux/media-bus-format.h              |  3 +-
> >  2 files changed, 39 insertions(+), 1 deletion(-)
> > 
> > diff --git a/Documentation/userspace-api/media/v4l/subdev-formats.rst b/Documentation/userspace-api/media/v4l/subdev-formats.rst
> > index d21d532eee15..1e61c02aa788 100644
> > --- a/Documentation/userspace-api/media/v4l/subdev-formats.rst
> > +++ b/Documentation/userspace-api/media/v4l/subdev-formats.rst
> > @@ -986,6 +986,43 @@ The following tables list existing packed RGB formats.
> >        - g\ :sub:`2`
> >        - g\ :sub:`1`
> >        - g\ :sub:`0`
> > +    * .. _MEDIA-BUS-FMT-RGB565-1X24_CPADHI:
> > +
> > +      - MEDIA_BUS_FMT_RGB565_1X24_CPADHI
> > +      - 0x1022
> > +      -
> > +      -
> > +      -
> > +      -
> > +      -
> > +      -
> > +      -
> > +      -
> > +      -
> > +      - 0
> > +      - 0
> > +      - 0
> > +      - r\ :sub:`4`
> > +      - r\ :sub:`3`
> > +      - r\ :sub:`2`
> > +      - r\ :sub:`1`
> > +      - r\ :sub:`0`
> > +      - 0
> > +      - 0
> > +      - g\ :sub:`5`
> > +      - g\ :sub:`4`
> > +      - g\ :sub:`3`
> > +      - g\ :sub:`2`
> > +      - g\ :sub:`1`
> > +      - g\ :sub:`0`
> > +      - 0
> > +      - 0
> > +      - 0
> > +      - b\ :sub:`4`
> > +      - b\ :sub:`3`
> > +      - b\ :sub:`2`
> > +      - b\ :sub:`1`
> > +      - b\ :sub:`0`
> >      * .. _MEDIA-BUS-FMT-RGB666-1X24_CPADHI:
> >  
> >        - MEDIA_BUS_FMT_RGB666_1X24_CPADHI
> > diff --git a/include/uapi/linux/media-bus-format.h b/include/uapi/linux/media-bus-format.h
> > index ec3323dbb927..b0a945eb7040 100644
> > --- a/include/uapi/linux/media-bus-format.h
> > +++ b/include/uapi/linux/media-bus-format.h
> > @@ -34,13 +34,14 @@
> >  
> >  #define MEDIA_BUS_FMT_FIXED			0x0001
> >  
> > -/* RGB - next is	0x1022 */
> > +/* RGB - next is	0x1023 */
> >  #define MEDIA_BUS_FMT_RGB444_1X12		0x1016
> >  #define MEDIA_BUS_FMT_RGB444_2X8_PADHI_BE	0x1001
> >  #define MEDIA_BUS_FMT_RGB444_2X8_PADHI_LE	0x1002
> >  #define MEDIA_BUS_FMT_RGB555_2X8_PADHI_BE	0x1003
> >  #define MEDIA_BUS_FMT_RGB555_2X8_PADHI_LE	0x1004
> >  #define MEDIA_BUS_FMT_RGB565_1X16		0x1017
> > +#define MEDIA_BUS_FMT_RGB565_1X24_CPADHI	0x1022

I spoke a bit too fast, this should go down with the other 1X24 formats.
The Rb tag still holds with this fixed.

> >  #define MEDIA_BUS_FMT_BGR565_2X8_BE		0x1005
> >  #define MEDIA_BUS_FMT_BGR565_2X8_LE		0x1006
> >  #define MEDIA_BUS_FMT_RGB565_2X8_BE		0x1007
> > 

-- 
Regards,

Laurent Pinchart