From: Stephen Warren <swarren@wwwdotorg.org>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH v3 06/18] tegra: fdt: Add LCD definitions for Tegra
Date: Tue, 31 Jul 2012 10:12:35 -0600 [thread overview]
Message-ID: <501803F3.6090803@wwwdotorg.org> (raw)
In-Reply-To: <CAPnjgZ2SbVVKxUdW1cvLf_9rAWLWeiVr-y6S_sz-Uw5_O_AyQA@mail.gmail.com>
On 07/31/2012 03:27 AM, Simon Glass wrote:
> On Thu, Jul 12, 2012 at 4:25 PM, Simon Glass <sjg@chromium.org> wrote:
>> Add LCD definitions and also a proposed binding for LCD displays.
>>
>> The PWM is as per what will likely be committed to linux-next soon.
>>
>> The displaymode binding comes from a proposal here:
>>
>> http://lists.freedesktop.org/archives/dri-devel/2012-July/024875.html
>>
>> The panel binding is new, and fills a need to specify the panel
>> timings and other tegra-specific information. Should a binding appear
>> that allows the pwm to handle this automatically, we can revisit
>> this.
>
> Any comments on this binding please? The main addition from Thierry's
> one posted on LMKL is the LCD resolution selection.
I have some concerns about the way the mode is represented in the
binding; the timing parameters are quite different to how e.g. an EDID
DTD would represent them, which I think will lead to conversion mistakes
when writing the DT.
I'm trying to get along of Sascha's original email so I can join in on
that discussion.
>> diff --git a/doc/device-tree-bindings/video/tegra20-dc.txt b/doc/device-tree-bindings/video/tegra20-dc.txt
>> +Optional properties (rgb):
>> + - nvidia,frame-buffer: address of frame buffer (if omitted it will be
>> + calculated)
>> + - This may be useful to share an address between U-Boot and Linux and
>> + avoid boot-time corruption / flicker
Why can't the display driver read this out of the display registers,
instead of requiring the same information to be passed using DT too?
next prev parent reply other threads:[~2012-07-31 16:12 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-12 15:25 [U-Boot] [PATCH v3 0/18] tegra: Add display driver and LCD support for Seaboard Simon Glass
2012-07-12 15:25 ` [U-Boot] [PATCH v3 01/18] fdt: Tidy debugging, add to fdtdec_get_int/addr() Simon Glass
2012-09-21 20:06 ` Anatolij Gustschin
2012-07-12 15:25 ` [U-Boot] [PATCH v3 02/18] fdt: Add header guard to fdtdec.h Simon Glass
2012-07-19 13:49 ` Mike Frysinger
2012-09-21 20:08 ` Anatolij Gustschin
2012-07-12 15:25 ` [U-Boot] [PATCH v3 03/18] tegra: Use const for pinmux_config_pingroup/table() Simon Glass
2012-07-19 13:53 ` Mike Frysinger
2012-07-12 15:25 ` [U-Boot] [PATCH v3 04/18] tegra: Add display support to funcmux Simon Glass
2012-07-19 13:54 ` Mike Frysinger
2012-07-12 15:25 ` [U-Boot] [PATCH v3 05/18] tegra: fdt: Add pwm binding and node Simon Glass
2012-07-12 15:25 ` [U-Boot] [PATCH v3 06/18] tegra: fdt: Add LCD definitions for Tegra Simon Glass
2012-07-31 9:27 ` Simon Glass
2012-07-31 9:51 ` Thierry Reding
2012-09-27 19:44 ` Simon Glass
2012-07-31 16:12 ` Stephen Warren [this message]
2012-09-27 13:58 ` Simon Glass
2012-09-27 15:49 ` Stephen Warren
2012-09-27 20:27 ` Simon Glass
2012-09-27 23:21 ` Stephen Warren
2012-09-27 23:37 ` Simon Glass
2012-09-28 5:42 ` Thierry Reding
2012-07-12 15:25 ` [U-Boot] [PATCH v3 07/18] tegra: Add support for PWM Simon Glass
2012-07-19 13:55 ` Mike Frysinger
2012-09-27 13:51 ` Simon Glass
2012-07-12 15:25 ` [U-Boot] [PATCH v3 08/18] tegra: Add SOC support for display/lcd Simon Glass
2012-07-19 7:37 ` Thierry Reding
2012-07-19 8:24 ` Adam Jiang
2012-07-19 8:28 ` Thierry Reding
2012-07-19 8:03 ` Adam Jiang
2012-07-19 14:13 ` Mike Frysinger
2012-09-27 17:44 ` Simon Glass
2012-07-12 15:25 ` [U-Boot] [PATCH v3 09/18] tegra: Add LCD driver Simon Glass
2012-07-19 7:41 ` Thierry Reding
2012-09-27 17:28 ` Simon Glass
2012-07-12 15:25 ` [U-Boot] [PATCH v3 10/18] tegra: Add LCD support to Nvidia boards Simon Glass
2012-07-12 15:25 ` [U-Boot] [PATCH v3 11/18] arm: Add control over cachability of memory regions Simon Glass
2012-07-12 18:12 ` Albert ARIBAUD
2012-07-19 14:10 ` Mike Frysinger
2012-09-27 17:54 ` Simon Glass
2012-07-12 15:25 ` [U-Boot] [PATCH v3 12/18] lcd: Add CONFIG_LCD_ALIGNMENT to select frame buffer alignment Simon Glass
2012-07-19 13:59 ` Mike Frysinger
2012-09-27 19:20 ` Simon Glass
2012-07-12 15:25 ` [U-Boot] [PATCH v3 13/18] lcd: Add support for flushing LCD fb from dcache after update Simon Glass
2012-07-19 14:01 ` Mike Frysinger
2012-07-19 16:52 ` Mike Frysinger
2012-08-09 7:43 ` Lukasz Majewski
2012-10-16 18:16 ` Simon Glass
2012-10-17 10:38 ` Lukasz Majewski
2012-10-17 15:34 ` Eric Nelson
2012-10-17 22:07 ` Simon Glass
2012-10-18 0:41 ` Eric Nelson
2012-10-18 0:50 ` Simon Glass
2012-10-18 1:07 ` Eric Nelson
2012-10-19 23:49 ` Simon Glass
2012-07-12 15:25 ` [U-Boot] [PATCH v3 14/18] tegra: Align LCD frame buffer to section boundary Simon Glass
2012-07-19 14:01 ` Mike Frysinger
2012-07-12 15:25 ` [U-Boot] [PATCH v3 15/18] tegra: Support control of cache settings for LCD Simon Glass
2012-07-12 15:25 ` [U-Boot] [PATCH v3 16/18] tegra: fdt: Add LCD definitions for Seaboard Simon Glass
2012-07-12 15:25 ` [U-Boot] [PATCH v3 17/18] lcd: Add CONSOLE_SCROLL_LINES option to speed console Simon Glass
2012-07-19 14:04 ` Mike Frysinger
2012-09-27 19:23 ` Simon Glass
2012-07-12 15:25 ` [U-Boot] [PATCH v3 18/18] tegra: Enable display/lcd support on Seaboard Simon Glass
2012-07-19 7:58 ` [U-Boot] [PATCH v3 0/18] tegra: Add display driver and LCD support for Seaboard Thierry Reding
2012-07-31 9:28 ` Simon Glass
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