From: Dave Stevenson <dave.stevenson@raspberrypi.com> To: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Chris Morgan <macromorgan@hotmail.com>, Emma Anholt <emma@anholt.net>, David Airlie <airlied@linux.ie>, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Eric Anholt <eric@anholt.net>, Joerg Quinten <aBUGSworstnightmare@gmail.com>, Maxime Ripard <maxime@cerno.tech> Subject: Re: [PATCH 5/7] drm/vc4: dpi: Support BGR666 formats Date: Mon, 17 Oct 2022 18:26:18 +0100 [thread overview] Message-ID: <CAPY8ntAW56-17QmwVsOmtnvEbnq_OmgmM_naVGhLepR9T3BDyA@mail.gmail.com> (raw) In-Reply-To: <Y0ruTEuq1flo7/dt@pendragon.ideasonboard.com> Hi Laurent Thanks for the review. On Sat, 15 Oct 2022 at 18:31, Laurent Pinchart <laurent.pinchart@ideasonboard.com> wrote: > > On Sat, Oct 15, 2022 at 08:26:48PM +0300, Laurent Pinchart wrote: > > Hi Maxime and Joerg, > > > > Thank you for the patch. > > > > On Thu, Oct 13, 2022 at 11:56:49AM +0200, Maxime Ripard wrote: > > > From: Joerg Quinten <aBUGSworstnightmare@gmail.com> > > > > > > The VC4 DPI output can support multiple BGR666 variants, but they were > > > never added to the driver. Let's add the the support for those formats. > > > > > > Signed-off-by: Joerg Quinten <aBUGSworstnightmare@gmail.com> > > > Signed-off-by: Maxime Ripard <maxime@cerno.tech> > > > > Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> > > > > > --- > > > drivers/gpu/drm/vc4/vc4_dpi.c | 6 ++++++ > > > 1 file changed, 6 insertions(+) > > > > > > diff --git a/drivers/gpu/drm/vc4/vc4_dpi.c b/drivers/gpu/drm/vc4/vc4_dpi.c > > > index 7da3dd1db50e..ecbe4cd87036 100644 > > > --- a/drivers/gpu/drm/vc4/vc4_dpi.c > > > +++ b/drivers/gpu/drm/vc4/vc4_dpi.c > > > @@ -170,10 +170,16 @@ static void vc4_dpi_encoder_enable(struct drm_encoder *encoder) > > > dpi_c |= VC4_SET_FIELD(DPI_ORDER_BGR, > > > DPI_ORDER); > > > break; > > > + case MEDIA_BUS_FMT_BGR666_1X24_CPADHI: > > > + dpi_c |= VC4_SET_FIELD(DPI_ORDER_BGR, DPI_ORDER); > > > + fallthrough; > > Upon closer inspection of the code, I think you also need > > - dpi_c &= ~DPI_FORMAT_MASK; > + dpi_c &= ~(DPI_ORDER_MASK | DPI_FORMAT_MASK); > > a few lines above. Hmm, curious as there appears to be a difference between our vendor tree and mainline in the contents of a patch with almost the same commit text. https://github.com/torvalds/linux/commit/7a70b0b97889a89f397913c971cadfc6db9b310a vs https://github.com/raspberrypi/linux/commit/9d9dc236a9ee9021363b8601b6188e7be86d1971 Our tree leaves dpi_c effectively clear, and selects the default at the end. Mainline sets the default first. Even so, dpi_c gets initialised with dpi_c = DPI_ENABLE; dpi_c |= VC4_SET_FIELD(DPI_FORMAT_24BIT_888_RGB, DPI_FORMAT); dpi_c &= ~DPI_FORMAT_MASK; so at this point in the switch, the DPI_ORDER bits haven't changed from the default of 0. Dave > > > case MEDIA_BUS_FMT_RGB666_1X24_CPADHI: > > > dpi_c |= VC4_SET_FIELD(DPI_FORMAT_18BIT_666_RGB_2, > > > DPI_FORMAT); > > > break; > > > + case MEDIA_BUS_FMT_BGR666_1X18: > > > + dpi_c |= VC4_SET_FIELD(DPI_ORDER_BGR, DPI_ORDER); > > > + fallthrough; > > > case MEDIA_BUS_FMT_RGB666_1X18: > > > dpi_c |= VC4_SET_FIELD(DPI_FORMAT_18BIT_666_RGB_1, > > > DPI_FORMAT); > > > > > -- > Regards, > > Laurent Pinchart
WARNING: multiple messages have this Message-ID (diff)
From: Dave Stevenson <dave.stevenson@raspberrypi.com> To: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Maxime Ripard <maxime@cerno.tech>, Maxime Ripard <mripard@kernel.org>, Eric Anholt <eric@anholt.net>, Daniel Vetter <daniel@ffwll.ch>, David Airlie <airlied@linux.ie>, Rob Herring <robh@kernel.org>, Emma Anholt <emma@anholt.net>, dri-devel@lists.freedesktop.org, Joerg Quinten <aBUGSworstnightmare@gmail.com>, Chris Morgan <macromorgan@hotmail.com>, linux-kernel@vger.kernel.org Subject: Re: [PATCH 5/7] drm/vc4: dpi: Support BGR666 formats Date: Mon, 17 Oct 2022 18:26:18 +0100 [thread overview] Message-ID: <CAPY8ntAW56-17QmwVsOmtnvEbnq_OmgmM_naVGhLepR9T3BDyA@mail.gmail.com> (raw) In-Reply-To: <Y0ruTEuq1flo7/dt@pendragon.ideasonboard.com> Hi Laurent Thanks for the review. On Sat, 15 Oct 2022 at 18:31, Laurent Pinchart <laurent.pinchart@ideasonboard.com> wrote: > > On Sat, Oct 15, 2022 at 08:26:48PM +0300, Laurent Pinchart wrote: > > Hi Maxime and Joerg, > > > > Thank you for the patch. > > > > On Thu, Oct 13, 2022 at 11:56:49AM +0200, Maxime Ripard wrote: > > > From: Joerg Quinten <aBUGSworstnightmare@gmail.com> > > > > > > The VC4 DPI output can support multiple BGR666 variants, but they were > > > never added to the driver. Let's add the the support for those formats. > > > > > > Signed-off-by: Joerg Quinten <aBUGSworstnightmare@gmail.com> > > > Signed-off-by: Maxime Ripard <maxime@cerno.tech> > > > > Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> > > > > > --- > > > drivers/gpu/drm/vc4/vc4_dpi.c | 6 ++++++ > > > 1 file changed, 6 insertions(+) > > > > > > diff --git a/drivers/gpu/drm/vc4/vc4_dpi.c b/drivers/gpu/drm/vc4/vc4_dpi.c > > > index 7da3dd1db50e..ecbe4cd87036 100644 > > > --- a/drivers/gpu/drm/vc4/vc4_dpi.c > > > +++ b/drivers/gpu/drm/vc4/vc4_dpi.c > > > @@ -170,10 +170,16 @@ static void vc4_dpi_encoder_enable(struct drm_encoder *encoder) > > > dpi_c |= VC4_SET_FIELD(DPI_ORDER_BGR, > > > DPI_ORDER); > > > break; > > > + case MEDIA_BUS_FMT_BGR666_1X24_CPADHI: > > > + dpi_c |= VC4_SET_FIELD(DPI_ORDER_BGR, DPI_ORDER); > > > + fallthrough; > > Upon closer inspection of the code, I think you also need > > - dpi_c &= ~DPI_FORMAT_MASK; > + dpi_c &= ~(DPI_ORDER_MASK | DPI_FORMAT_MASK); > > a few lines above. Hmm, curious as there appears to be a difference between our vendor tree and mainline in the contents of a patch with almost the same commit text. https://github.com/torvalds/linux/commit/7a70b0b97889a89f397913c971cadfc6db9b310a vs https://github.com/raspberrypi/linux/commit/9d9dc236a9ee9021363b8601b6188e7be86d1971 Our tree leaves dpi_c effectively clear, and selects the default at the end. Mainline sets the default first. Even so, dpi_c gets initialised with dpi_c = DPI_ENABLE; dpi_c |= VC4_SET_FIELD(DPI_FORMAT_24BIT_888_RGB, DPI_FORMAT); dpi_c &= ~DPI_FORMAT_MASK; so at this point in the switch, the DPI_ORDER bits haven't changed from the default of 0. Dave > > > case MEDIA_BUS_FMT_RGB666_1X24_CPADHI: > > > dpi_c |= VC4_SET_FIELD(DPI_FORMAT_18BIT_666_RGB_2, > > > DPI_FORMAT); > > > break; > > > + case MEDIA_BUS_FMT_BGR666_1X18: > > > + dpi_c |= VC4_SET_FIELD(DPI_ORDER_BGR, DPI_ORDER); > > > + fallthrough; > > > case MEDIA_BUS_FMT_RGB666_1X18: > > > dpi_c |= VC4_SET_FIELD(DPI_FORMAT_18BIT_666_RGB_1, > > > DPI_FORMAT); > > > > > -- > Regards, > > Laurent Pinchart
next prev parent reply other threads:[~2022-10-17 17:27 UTC|newest] Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-10-13 9:56 [PATCH 0/7] drm/vc4: dpi: Various improvements Maxime Ripard 2022-10-13 9:56 ` Maxime Ripard 2022-10-13 9:56 ` [PATCH 1/7] media: uapi: add MEDIA_BUS_FMT_RGB565_1X24_CPADHI Maxime Ripard 2022-10-13 9:56 ` Maxime Ripard 2022-10-13 9:56 ` [PATCH 2/7] media: uapi: add MEDIA_BUS_FMT_BGR666_1X18 Maxime Ripard 2022-10-13 9:56 ` Maxime Ripard 2022-10-15 17:07 ` Laurent Pinchart 2022-10-15 17:07 ` Laurent Pinchart 2022-10-13 9:56 ` [PATCH 3/7] media: uapi: add MEDIA_BUS_FMT_BGR666_1X24_CPADHI Maxime Ripard 2022-10-13 9:56 ` Maxime Ripard 2022-10-13 9:56 ` [PATCH 4/7] drm/vc4: dpi: Support RGB565 format Maxime Ripard 2022-10-13 9:56 ` Maxime Ripard 2022-10-15 17:29 ` Laurent Pinchart 2022-10-15 17:29 ` Laurent Pinchart 2022-10-17 17:12 ` Dave Stevenson 2022-10-17 17:12 ` Dave Stevenson 2022-10-13 9:56 ` [PATCH 5/7] drm/vc4: dpi: Support BGR666 formats Maxime Ripard 2022-10-13 9:56 ` Maxime Ripard 2022-10-15 17:26 ` Laurent Pinchart 2022-10-15 17:26 ` Laurent Pinchart 2022-10-15 17:30 ` Laurent Pinchart 2022-10-15 17:30 ` Laurent Pinchart 2022-10-17 17:26 ` Dave Stevenson [this message] 2022-10-17 17:26 ` Dave Stevenson 2022-10-13 9:56 ` [PATCH 6/7] drm/vc4: dpi: Change the default DPI format to being 18bpp, not 24 Maxime Ripard 2022-10-13 9:56 ` Maxime Ripard 2022-10-15 17:13 ` Laurent Pinchart 2022-10-15 17:13 ` Laurent Pinchart 2022-10-17 17:03 ` Dave Stevenson 2022-10-17 17:03 ` Dave Stevenson 2022-10-13 9:56 ` [PATCH 7/7] drm/vc4: dpi: Fix format mapping for RGB565 Maxime Ripard 2022-10-13 9:56 ` Maxime Ripard 2022-10-15 17:19 ` Laurent Pinchart 2022-10-15 17:19 ` Laurent Pinchart
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=CAPY8ntAW56-17QmwVsOmtnvEbnq_OmgmM_naVGhLepR9T3BDyA@mail.gmail.com \ --to=dave.stevenson@raspberrypi.com \ --cc=aBUGSworstnightmare@gmail.com \ --cc=airlied@linux.ie \ --cc=dri-devel@lists.freedesktop.org \ --cc=emma@anholt.net \ --cc=eric@anholt.net \ --cc=laurent.pinchart@ideasonboard.com \ --cc=linux-kernel@vger.kernel.org \ --cc=macromorgan@hotmail.com \ --cc=maxime@cerno.tech \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.