From: Hans de Goede <hdegoede@redhat.com>
To: linux-arm-kernel@lists.infradead.org
Subject: Re: [linux-sunxi] Re: [PATCH 4/4] simplefb: add clock handling code
Date: Wed, 27 Aug 2014 12:50:18 +0000 [thread overview]
Message-ID: <53FDD40A.3040106@redhat.com> (raw)
In-Reply-To: <CAKON4Owj=b7r_iuOOrr_5R++oSbxqF0G0i4puFz7aTaUF+weuw@mail.gmail.com>
Hi,
On 08/27/2014 02:44 PM, jonsmirl@gmail.com wrote:
<snip>
>> 1) Serving as *the* fb until a kms driver is present
>
> Why can't we whip together a real device specific fbdev driver and
> quit trying to run without a device specific driver in place? History
> has shown that to be bad idea except during early boot when there
> isn't a choice.
Writing a kms driver and getting it upstream is not a simple task, and
starting with a too limited implementation is dangerous as we need to get
the devicetree binding first from the get go.
IOW this is not really a realistic answer to problem 1.
<snip>
>> 2) Allowing for output of early kernel boot messages.
>
> For this to work the kernel needs to know two things - address of the
> framebuffer and the x/y layout. Then just nuke this display when the
> kernel finishes the boot process.
Please read my earlier mails on how completely flawed it is to write
"when the kernel finishes the boot process". The problem is that there
is no way to really determine when this happens.
Regards,
Hans
next prev parent reply other threads:[~2014-08-27 12:50 UTC|newest]
Thread overview: 269+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-13 7:17 simplefb: add clock handling Luc Verhaegen
2014-08-13 7:17 ` [PATCH 1/4] simplefb: formalize pseudo palette handling Luc Verhaegen
2014-08-13 7:25 ` David Herrmann
2014-08-13 8:46 ` Geert Uytterhoeven
2014-08-13 8:50 ` David Herrmann
2014-08-13 16:45 ` Stephen Warren
2014-08-13 7:17 ` [PATCH 2/4] simplefb: add goto error path to probe Luc Verhaegen
2014-08-13 7:27 ` David Herrmann
2014-08-14 10:29 ` Luc Verhaegen
2014-08-14 10:33 ` David Herrmann
2014-08-14 10:42 ` Luc Verhaegen
2014-08-13 7:17 ` [PATCH 3/4] simplefb: disable dt node upon remove Luc Verhaegen
2014-08-13 8:40 ` Grant Likely
2014-08-13 8:49 ` David Herrmann
2014-08-13 9:23 ` Grant Likely
2014-08-13 9:32 ` David Herrmann
2014-08-13 9:45 ` Luc Verhaegen
2014-08-13 10:19 ` [linux-sunxi] " Luc Verhaegen
2014-08-13 12:54 ` jonsmirl
2014-08-13 19:14 ` Grant Likely
2014-08-13 19:25 ` Luc Verhaegen
2014-08-13 19:58 ` Stephen Warren
2014-08-13 20:01 ` Luc Verhaegen
2014-08-13 20:00 ` Grant Likely
2014-08-13 20:19 ` Luc Verhaegen
2014-08-13 20:41 ` [linux-sunxi] " jonsmirl
2014-08-14 10:15 ` Grant Likely
2014-08-14 12:07 ` jonsmirl
2014-08-15 0:45 ` Henrik Nordström
2014-08-15 1:27 ` jonsmirl
2014-08-15 6:43 ` Maxime Ripard
2014-08-15 12:34 ` jonsmirl
2014-08-13 16:44 ` Stephen Warren
2014-08-13 17:26 ` [linux-sunxi] " jonsmirl
2014-08-13 17:34 ` Stephen Warren
2014-08-13 17:44 ` jonsmirl
2014-08-13 7:17 ` [PATCH 4/4] simplefb: add clock handling code Luc Verhaegen
2014-08-13 16:38 ` Stephen Warren
2014-08-13 16:47 ` Luc Verhaegen
2014-08-13 17:01 ` Maxime Ripard
2014-08-14 9:37 ` [linux-sunxi] " Hans de Goede
2014-08-14 10:31 ` [linux-sunxi] " Koen Kooi
2014-08-14 10:57 ` Luc Verhaegen
2014-08-14 11:18 ` Hans de Goede
2014-08-14 11:18 ` Hans de Goede
2014-08-25 12:12 ` Thierry Reding
2014-08-25 12:44 ` Maxime Ripard
2014-08-25 13:39 ` Thierry Reding
2014-08-25 13:47 ` [linux-sunxi] " Hans de Goede
2014-08-25 14:16 ` Thierry Reding
2014-08-25 14:23 ` jonsmirl
2014-08-25 14:27 ` Hans de Goede
2014-08-25 15:12 ` Thierry Reding
2014-08-25 15:18 ` Luc Verhaegen
2014-08-26 8:40 ` Thierry Reding
2014-08-26 13:22 ` Maxime Ripard
2014-08-26 13:43 ` Thierry Reding
2014-08-25 15:49 ` jonsmirl
2014-08-26 9:02 ` Hans de Goede
2014-08-25 15:01 ` Thierry Reding
2014-08-25 14:23 ` Hans de Goede
2014-08-25 14:53 ` Thierry Reding
2014-08-25 15:07 ` Maxime Ripard
2014-08-26 8:26 ` Thierry Reding
2014-08-26 9:00 ` Mark Brown
2014-08-26 9:18 ` Thierry Reding
2014-08-26 10:06 ` Mark Brown
2014-08-26 10:55 ` Thierry Reding
2014-08-26 11:33 ` Mark Brown
2014-08-26 18:40 ` Henrik Nordström
2014-08-27 7:40 ` Mark Brown
2014-08-27 8:22 ` Maxime Ripard
2014-08-27 8:37 ` Geert Uytterhoeven
2014-08-27 8:55 ` Maxime Ripard
2014-08-27 9:05 ` Geert Uytterhoeven
2014-08-27 10:32 ` Maxime Ripard
2014-08-27 10:07 ` Thierry Reding
2014-08-27 10:26 ` Henrik Nordström
2014-08-27 12:45 ` Julian Calaby
2014-08-27 13:24 ` Maxime Ripard
2014-08-25 15:08 ` jonsmirl
2014-08-25 14:58 ` Maxime Ripard
2014-08-25 15:05 ` Thierry Reding
2014-08-25 15:09 ` Luc Verhaegen
2014-08-26 7:52 ` Thierry Reding
2014-08-26 12:02 ` Luc Verhaegen
2014-08-26 12:21 ` Thierry Reding
2014-08-26 12:33 ` Luc Verhaegen
2014-08-26 14:41 ` Thierry Reding
2014-08-25 15:22 ` Maxime Ripard
2014-08-26 8:04 ` Thierry Reding
2014-08-26 8:45 ` Michal Suchanek
2014-08-26 13:53 ` Maxime Ripard
2014-08-26 14:35 ` Thierry Reding
2014-08-26 19:59 ` Hans de Goede
2014-08-27 9:31 ` Thierry Reding
2014-08-27 10:35 ` Hans de Goede
2014-08-27 12:44 ` jonsmirl
2014-08-27 12:50 ` Hans de Goede [this message]
2014-08-27 12:56 ` jonsmirl
2014-08-27 13:05 ` Thierry Reding
2014-08-27 12:56 ` Thierry Reding
2014-08-27 13:44 ` Hans de Goede
2014-08-27 14:16 ` Thierry Reding
2014-08-28 12:15 ` Hans de Goede
2014-08-28 13:22 ` jonsmirl
2014-08-28 14:20 ` Geert Uytterhoeven
2014-08-28 14:33 ` jonsmirl
2014-08-28 14:37 ` Geert Uytterhoeven
2014-08-28 15:11 ` jonsmirl
2014-08-28 16:25 ` Michal Suchanek
2014-08-28 16:34 ` jonsmirl
2014-08-28 16:50 ` Luc Verhaegen
2014-08-28 20:31 ` Michal Suchanek
2014-08-29 7:16 ` Thierry Reding
2014-08-29 7:01 ` Thierry Reding
2014-08-29 7:23 ` Hans de Goede
2014-08-29 8:12 ` Thierry Reding
2014-08-29 14:12 ` Maxime Ripard
2014-08-29 14:38 ` Thierry Reding
2014-08-29 15:25 ` Michal Suchanek
2014-09-02 9:25 ` Maxime Ripard
2014-09-27 23:56 ` Mike Turquette
2014-09-29 8:06 ` Thierry Reding
2014-09-29 8:27 ` Geert Uytterhoeven
2014-09-29 8:54 ` Thierry Reding
2014-09-29 9:10 ` Geert Uytterhoeven
2014-09-29 9:29 ` Thierry Reding
2014-09-29 9:44 ` Michal Suchanek
2014-09-29 10:40 ` Thierry Reding
2014-09-29 9:23 ` Maxime Ripard
2014-09-29 10:18 ` Thierry Reding
2014-09-29 10:35 ` Geert Uytterhoeven
2014-09-29 10:44 ` Thierry Reding
2014-09-29 11:32 ` Geert Uytterhoeven
2014-09-29 14:00 ` Thierry Reding
2014-09-29 11:34 ` Maxime Ripard
2014-09-29 13:54 ` Thierry Reding
2014-09-29 15:57 ` Maxime Ripard
2014-09-30 4:59 ` Thierry Reding
2014-09-30 7:46 ` Maxime Ripard
2014-09-30 11:43 ` Hans de Goede
2014-09-30 11:46 ` Thierry Reding
2014-09-30 21:37 ` Mike Turquette
2014-10-01 7:30 ` Thierry Reding
2014-10-01 18:17 ` Mike Turquette
2014-10-02 8:12 ` Thierry Reding
2014-09-29 11:00 ` Julian Calaby
2014-09-29 13:21 ` Thierry Reding
2014-09-29 14:46 ` Julian Calaby
2014-09-29 15:19 ` Thierry Reding
2014-09-29 15:42 ` Michal Suchanek
2014-09-30 0:10 ` Julian Calaby
2014-09-29 11:46 ` Maxime Ripard
2014-09-29 13:47 ` Thierry Reding
2014-09-29 15:04 ` Michal Suchanek
2014-09-29 15:49 ` Thierry Reding
2014-09-29 16:39 ` Michal Suchanek
2014-09-29 15:55 ` Mark Brown
2014-09-30 5:09 ` Thierry Reding
2014-09-30 17:39 ` Mark Brown
2014-10-01 7:41 ` Thierry Reding
2014-10-01 11:10 ` Javier Martinez Canillas
2014-10-01 12:32 ` Mark Brown
2014-10-01 12:48 ` Thierry Reding
2014-10-01 17:05 ` Mark Brown
2014-10-01 17:26 ` Hans de Goede
2014-10-01 17:54 ` jonsmirl
2014-10-01 18:12 ` Stephen Warren
2014-10-01 18:16 ` Luc Verhaegen
2014-10-02 6:42 ` Hans de Goede
2014-10-02 12:22 ` jonsmirl
2014-10-02 12:39 ` Hans de Goede
2014-10-02 12:56 ` jonsmirl
2014-10-02 13:14 ` Hans de Goede
2014-10-02 13:27 ` jonsmirl
2014-10-02 13:33 ` Hans de Goede
2014-10-02 13:40 ` jonsmirl
2014-10-02 14:08 ` Hans de Goede
2014-10-02 14:16 ` jonsmirl
2014-10-02 14:21 ` Hans de Goede
2014-10-02 14:41 ` jonsmirl
2014-10-02 14:50 ` Hans de Goede
2014-10-02 15:14 ` jonsmirl
2014-10-02 15:30 ` jonsmirl
2014-10-02 15:38 ` Hans de Goede
2014-10-02 15:36 ` Michal Suchanek
2014-10-02 23:31 ` Julian Calaby
2014-10-03 7:56 ` Hans de Goede
2014-11-11 16:15 ` Grant Likely
2014-10-02 14:18 ` Maxime Ripard
2014-10-02 14:23 ` Hans de Goede
2014-10-02 14:17 ` Michal Suchanek
2014-10-02 13:59 ` Michal Suchanek
2014-10-02 13:23 ` Michal Suchanek
2014-10-02 13:34 ` jonsmirl
2014-10-02 13:40 ` Hans de Goede
2014-10-02 13:44 ` jonsmirl
2014-10-02 13:46 ` Geert Uytterhoeven
2014-10-02 13:49 ` jonsmirl
2014-10-02 19:15 ` Geert Uytterhoeven
2014-10-02 15:49 ` Stephen Warren
2014-10-03 11:16 ` Hans de Goede
2014-10-03 11:45 ` Tomi Valkeinen
2014-10-03 11:53 ` Hans de Goede
2014-10-01 11:31 ` Mark Brown
2014-09-29 16:28 ` Maxime Ripard
2014-09-29 16:58 ` Luc Verhaegen
2014-09-29 22:02 ` Luc Verhaegen
2014-09-30 5:39 ` Thierry Reding
2014-09-30 8:03 ` Maxime Ripard
2014-09-30 11:02 ` Thierry Reding
2014-09-30 12:41 ` Mark Brown
2014-09-30 12:50 ` jonsmirl
2014-09-30 5:21 ` Thierry Reding
2014-09-30 7:52 ` Maxime Ripard
2014-09-30 8:54 ` Thierry Reding
2014-09-30 9:38 ` Michal Suchanek
2014-09-30 11:31 ` Thierry Reding
2014-09-30 14:12 ` Michal Suchanek
2014-09-30 12:29 ` Maxime Ripard
2014-09-29 16:11 ` Mark Brown
2014-09-30 6:03 ` Thierry Reding
2014-09-30 18:00 ` Mark Brown
2014-10-01 8:14 ` Thierry Reding
2014-10-01 12:20 ` Mark Brown
2014-10-01 12:48 ` Thierry Reding
2014-10-01 13:01 ` jonsmirl
2014-10-01 13:17 ` Michal Suchanek
2014-10-01 13:40 ` jonsmirl
2014-10-01 17:17 ` Mark Brown
2014-10-01 18:43 ` Geert Uytterhoeven
2014-10-02 8:30 ` Thierry Reding
2014-10-02 8:27 ` Thierry Reding
2014-10-01 8:17 ` Thierry Reding
2014-09-29 17:51 ` jonsmirl
2014-09-29 18:06 ` Michal Suchanek
2014-08-27 13:56 ` Maxime Ripard
2014-08-27 14:30 ` Thierry Reding
2014-08-27 13:43 ` Maxime Ripard
2014-08-26 21:02 ` Maxime Ripard
2014-08-27 6:54 ` Thierry Reding
2014-08-27 8:00 ` Hans de Goede
2014-08-27 9:37 ` Thierry Reding
2014-08-27 8:45 ` Maxime Ripard
2014-08-27 9:52 ` Thierry Reding
2014-08-27 15:42 ` Maxime Ripard
2014-08-27 20:57 ` Michal Suchanek
2014-08-28 10:08 ` Thierry Reding
2014-08-29 5:13 ` Michal Suchanek
2014-08-29 6:19 ` Thierry Reding
2014-08-29 6:48 ` Michal Suchanek
2014-08-29 7:08 ` Thierry Reding
2014-08-28 10:11 ` Thierry Reding
2014-08-28 10:32 ` Michal Suchanek
2014-08-28 20:46 ` Maxime Ripard
2014-08-29 6:29 ` Thierry Reding
2014-08-29 13:57 ` Maxime Ripard
2014-08-29 14:31 ` Thierry Reding
2014-08-27 8:17 ` Henrik Nordström
2014-08-25 15:25 ` Andreas Färber
2014-08-26 13:19 ` Maxime Ripard
2014-08-13 7:54 ` simplefb: add clock handling David Herrmann
2014-08-13 8:11 ` Luc Verhaegen
2014-08-13 8:21 ` [linux-sunxi] " Koen Kooi
2014-08-13 8:36 ` Hans de Goede
2014-08-13 10:16 ` Koen Kooi
2014-08-13 10:24 ` David Herrmann
2014-08-13 11:36 ` Hans de Goede
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