From: David Lechner <david@lechnology.com>
To: dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org
Cc: "Noralf Trønnes" <noralf@tronnes.org>,
"David Airlie" <airlied@linux.ie>,
"Rob Herring" <robh+dt@kernel.org>,
"Mark Rutland" <mark.rutland@arm.com>,
"Sekhar Nori" <nsekhar@ti.com>,
"Kevin Hilman" <khilman@kernel.org>,
linux-fbdev@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/6] Support for LEGO MINDSTORMS EV3 LCD display
Date: Sat, 29 Jul 2017 14:40:04 -0500 [thread overview]
Message-ID: <5d8f6518-8d7e-c029-2da4-e3417afb3e40@lechnology.com> (raw)
In-Reply-To: <1501355870-13960-1-git-send-email-david@lechnology.com>
On 07/29/2017 02:17 PM, David Lechner wrote:
> The goal of this series is to get the built-in LCD of the LEGO MINDSTORMS EV3
> working. But, most of the content here is building up the infrastructure to do
> that.
>
Some general comments/questions:
I have noticed that DRM doesn't really have support for monochrome
displays. I'm guessing that is because no one really uses them anymore?
The LEGO EV3 display is just an LCD (not the backlit kind). It has two
modes of operation. It can to 2bbp grayscale or it can do 1bpp
monochrome. The grayscale isn't the best (looks splotchy in places), so
it would be nice to be able to choose between these two modes. How would
I implement something like that?
Also, how can I indicate to userspace that this display really is
monochrome/grayscale since the reported color depth 16bpp?
next prev parent reply other threads:[~2017-07-29 19:40 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-29 19:17 David Lechner
2017-07-29 19:17 ` [PATCH 1/6] drm/tinydrm: Add parameter for MIPI DCS pixel format David Lechner
2017-07-30 18:10 ` Andy Shevchenko
2017-07-29 19:17 ` [PATCH 2/6] drm/tinydrm: add helpers for ST7586 controllers David Lechner
2017-07-30 18:19 ` Andy Shevchenko
2017-07-29 19:17 ` [PATCH 3/6] drm/tinydrm: rename mi028qt module to mipi-panel David Lechner
2017-07-29 19:30 ` David Lechner
2017-07-29 19:17 ` [PATCH 4/6] drm/tinydrm: mipi-panel: refactor to use driver id David Lechner
2017-07-30 18:24 ` Andy Shevchenko
2017-07-29 19:17 ` [PATCH 5/6] drm/tinydrm: add support for LEGO MINDSTORMS EV3 LCD David Lechner
2017-07-30 18:26 ` Andy Shevchenko
2017-07-29 19:17 ` [PATCH 6/6] ARM: dts: da850-lego-ev3: Add node for LCD display David Lechner
2017-07-29 19:40 ` David Lechner [this message]
2017-07-30 17:14 ` [PATCH 0/6] Support for LEGO MINDSTORMS EV3 " Noralf Trønnes
2017-08-01 16:51 ` David Lechner
2017-08-01 18:08 ` Noralf Trønnes
2017-08-01 22:26 ` David Lechner
2017-08-02 8:05 ` Noralf Trønnes
2017-08-02 16:05 ` David Lechner
2017-08-03 10:05 ` Daniel Vetter
2017-08-03 14:07 ` Noralf Trønnes
2017-08-03 15:18 ` David Lechner
2017-08-03 17:09 ` Andy Shevchenko
2017-08-03 17:11 ` Andy Shevchenko
2017-08-03 20:11 ` Noralf Trønnes
2017-08-04 1:08 ` David Lechner
2017-08-04 1:16 ` David Lechner
2017-07-30 17:12 ` Noralf Trønnes
2017-07-30 18:27 ` Andy Shevchenko
2017-07-30 18:27 ` Andy Shevchenko
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