From: Sam Ravnborg <sam@ravnborg.org>
To: "Màxim Pedraza Padilla" <maximpedraza@gmail.com>
Cc: "Maxime Ripard" <mripard@kernel.org>,
"Helge Deller" <deller@gmx.de>,
"Uwe Kleine-König" <u.kleine-koenig@baylibre.com>,
"Rob Herring" <robh@kernel.org>,
"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
"Conor Dooley" <conor+dt@kernel.org>,
"Thomas Zimmermann" <tzimmermann@suse.de>,
linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
kernel@pengutronix.de, "Francesco Valla" <francesco@valla.it>
Subject: Re: [RFC PATCH 0/6] Boot logo supplied by the device tree
Date: Tue, 18 Aug 2026 19:24:59 +0200 [thread overview]
Message-ID: <20260818172459.GA770905@ravnborg.org> (raw)
In-Reply-To: <CAEUXW=Ffs+WKsQrNc3zjwtfAO=FKTf_7jQFovD+yjmD_yJuY2Q@mail.gmail.com>
Hi Màxim.
On Tue, Aug 18, 2026 at 12:48:21AM +0200, Màxim Pedraza Padilla wrote:
> Hi Sam,
>
> Thank you -- that's a useful pointer, and it settles the question of how
> a splash should be drawn without fbcon: a DRM client at
> drm_client_setup(), next to drm_log, not a drm_fb_helper hook.
>
> Francesco's series is genuinely inspiring work, and it would be very
> useful to me if it could take a CLUT224 image -- unfortunately it can't.
> It only accepts an uncompressed 24-bit RGB888 BMP, whereas our logo is
> paletted, which is what keeps it small: 17 KiB for 800x480 rather than
> around a megabyte. So as it stands the format doesn't line up with what
> we carry.
Without looking at it in detail I would assume adding CLUT224 support
would be doable. Step 1 would be to add a format conversion in
drm_format_helper and use that. You may also find this useful for other
purposes.
Sam
next prev parent reply other threads:[~2026-08-18 17:25 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-31 21:50 [RFC PATCH 0/6] Boot logo supplied by the device tree Max Pedraza
2026-07-31 21:50 ` [RFC PATCH 1/6] dt-bindings: display: add a device tree supplied boot logo Max Pedraza
2026-07-31 21:50 ` [RFC PATCH 2/6] video: logo: allow the boot logo to come from the device tree Max Pedraza
2026-07-31 21:50 ` [RFC PATCH 3/6] fbdev: honour the device tree boot logo placement properties Max Pedraza
2026-07-31 21:50 ` [RFC PATCH 4/6] dt-bindings: display: allow the boot logo in a reserved memory region Max Pedraza
2026-07-31 21:50 ` [RFC PATCH 5/6] video: logo: allow the boot logo to come from " Max Pedraza
2026-07-31 21:50 ` [RFC PATCH 6/6] video: logo: add ppmtodtlogo host tool Max Pedraza
2026-08-01 8:08 ` [RFC PATCH 0/6] Boot logo supplied by the device tree Uwe Kleine-König
2026-08-01 20:44 ` Helge Deller
2026-08-01 22:01 ` Màxim Pedraza Padilla
2026-08-02 13:35 ` Uwe Kleine-König
2026-08-02 22:56 ` Màxim Pedraza Padilla
2026-08-10 9:02 ` Maxime Ripard
2026-08-12 0:31 ` Màxim Pedraza Padilla
2026-08-12 7:42 ` Maxime Ripard
2026-08-12 23:50 ` Màxim Pedraza Padilla
2026-08-13 8:02 ` Maxime Ripard
2026-08-13 23:50 ` Màxim Pedraza Padilla
2026-08-14 15:53 ` Sam Ravnborg
2026-08-17 22:48 ` Màxim Pedraza Padilla
2026-08-18 17:24 ` Sam Ravnborg [this message]
2026-08-18 19:39 ` Francesco Valla
2026-08-03 12:39 ` Ulrich Ölmann
2026-08-03 22:04 ` Màxim Pedraza Padilla
2026-08-04 5:25 ` Ulrich Ölmann
2026-08-04 15:59 ` Màxim Pedraza Padilla
2026-08-04 13:58 ` Geert Uytterhoeven
2026-08-04 22:37 ` Màxim Pedraza Padilla
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