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Message-ID: <e910fc2f-2acb-b81d-4b8c-532562952aeb@redhat.com>
Date: Thu, 10 Feb 2022 18:55:47 +0100
From: Javier Martinez Canillas <javierm@...hat.com>
To: Geert Uytterhoeven <geert@...ux-m68k.org>
Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
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Linux Fbdev development list <linux-fbdev@...r.kernel.org>,
Daniel Vetter <daniel.vetter@...ll.ch>,
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DRI Development <dri-devel@...ts.freedesktop.org>,
Daniel Vetter <daniel@...ll.ch>,
David Airlie <airlied@...ux.ie>,
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Maxime Ripard <mripard@...nel.org>,
Rob Herring <robh+dt@...nel.org>,
Thierry Reding <thierry.reding@...il.com>,
Uwe Kleine-König <u.kleine-koenig@...gutronix.de>,
"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
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Subject: Re: [PATCH v3 0/7] drm: Add driver for Solomon SSD130X OLED displays
Hello Geert,
On 2/10/22 18:06, Geert Uytterhoeven wrote:
> On Wed, Feb 9, 2022 at 1:19 PM Geert Uytterhoeven <geert@...ux-m68k.org> wrote:
>> On Wed, Feb 9, 2022 at 10:03 AM Javier Martinez Canillas
>> <javierm@...hat.com> wrote:
>>> This patch series adds a DRM driver for the Solomon OLED SSD1305, SSD1306,
>>> SSD1307 and SSD1309 displays. It is a port of the ssd1307fb fbdev driver.
>>
>> [...]
>
>> The logo is not shown, even when I create a 16-color or 224-color
>> version of the small monochrome logo I'm using.
>
> My mistake, I messed up the hook-up, causing it to pick a different
> logo that was too large to be displayed.
>
Great, thanks for all the testing.
> Of course it's using the 224-color logo reduced to monochrome instead
> of the real monochrome logo, as fbcon thinks it's running on XRGB8888.
>
Right. Once the patch lands, I'll look at wiring up the needed support in
DRM for the drivers to be able to advertise 8-bit grayscale and monochrome
to avoid the unnecessary conversions and to have feature parity with fbdev.
But I just wanted to do it incrementally and first port to DRM as first step.
Best regards,
--
Javier Martinez Canillas
Linux Engineering
Red Hat
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