From: Stephen Warren <swarren@wwwdotorg.org>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH v4 07/16] tegra: Add LCD driver
Date: Mon, 08 Oct 2012 16:12:44 -0600 [thread overview]
Message-ID: <50734FDC.6060703@wwwdotorg.org> (raw)
In-Reply-To: <CAPnjgZ3E1FUNw-te7nXLbSziVGy-GGvxY6-LeeAhW+-_z+AuRg@mail.gmail.com>
On 10/08/2012 04:02 PM, Simon Glass wrote:
> Hi Marc,
>
> On Fri, Oct 5, 2012 at 7:21 AM, Marc Dietrich <marvin24@gmx.de> wrote:
>> Simon,
>>
>> I tried to adapt this for paz00. I only get backlight and an all white screen.
>
> I'm not sure about that. One possibility is that your PWM is connected
> up differently. On Seaboard at least, I found that without the PWM I
> would get nothing on the display.
BTW, while fiddling around trying to find the
corrupted-display-after-reboot problem on Seaboard, I turned off/on
random display-related things. IIRC, when the panel VDD was off, but the
backlight was on, the display was all-white. Now, there are probably a
ton of other reasons that might happen, but that one would be simple to
verify with a few "gpio set" or "gpio clear" commands on your system...
next prev parent reply other threads:[~2012-10-08 22:12 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-28 0:44 [U-Boot] [PATCH v4 0/16] tegra: Add display driver and LCD support for Seaboard Simon Glass
2012-09-28 0:44 ` [U-Boot] [PATCH v4 01/16] tegra: Use const for pinmux_config_pingroup/table() Simon Glass
2012-09-28 0:44 ` [U-Boot] [PATCH v4 02/16] tegra: Add display support to funcmux Simon Glass
2012-09-28 0:44 ` [U-Boot] [PATCH v4 03/16] tegra: fdt: Add pwm binding and node Simon Glass
2012-09-28 20:08 ` Thierry Reding
2012-10-08 21:22 ` Simon Glass
2012-09-28 0:44 ` [U-Boot] [PATCH v4 04/16] tegra: fdt: Add LCD definitions for Tegra Simon Glass
2012-10-03 22:54 ` Stephen Warren
2012-10-03 22:58 ` Stephen Warren
2012-10-08 20:01 ` Simon Glass
2012-09-28 0:44 ` [U-Boot] [PATCH v4 05/16] tegra: Add support for PWM Simon Glass
2012-09-28 0:44 ` [U-Boot] [PATCH v4 06/16] tegra: Add SOC support for display/lcd Simon Glass
2012-09-28 0:44 ` [U-Boot] [PATCH v4 07/16] tegra: Add LCD driver Simon Glass
2012-10-05 14:21 ` Marc Dietrich
2012-10-08 22:02 ` Simon Glass
2012-10-08 22:12 ` Stephen Warren [this message]
2012-09-28 0:44 ` [U-Boot] [PATCH v4 08/16] tegra: Add LCD support to Nvidia boards Simon Glass
2012-09-28 0:44 ` [U-Boot] [PATCH v4 09/16] arm: Add control over cachability of memory regions Simon Glass
2012-09-28 0:44 ` [U-Boot] [PATCH v4 10/16] lcd: Add CONFIG_LCD_ALIGNMENT to select frame buffer alignment Simon Glass
2012-09-28 0:44 ` [U-Boot] [PATCH v4 11/16] lcd: Add support for flushing LCD fb from dcache after update Simon Glass
2012-09-28 0:44 ` [U-Boot] [PATCH v4 12/16] tegra: Align LCD frame buffer to section boundary Simon Glass
2012-09-28 0:44 ` [U-Boot] [PATCH v4 13/16] tegra: Support control of cache settings for LCD Simon Glass
2012-09-28 0:44 ` [U-Boot] [PATCH v4 14/16] tegra: fdt: Add LCD definitions for Seaboard Simon Glass
2012-10-03 22:58 ` Stephen Warren
2012-10-08 20:06 ` Simon Glass
2012-09-28 0:44 ` [U-Boot] [PATCH v4 15/16] lcd: Add CONSOLE_SCROLL_LINES option to speed console Simon Glass
2012-09-28 14:51 ` Lucas Stach
2012-10-08 19:55 ` Simon Glass
2012-09-28 0:44 ` [U-Boot] [PATCH v4 16/16] tegra: Enable display/lcd support on Seaboard Simon Glass
2012-10-03 17:05 ` [U-Boot] [PATCH v4 0/16] tegra: Add display driver and LCD support for Seaboard Stephen Warren
2012-10-03 17:22 ` Stephen Warren
2012-10-03 20:56 ` Simon Glass
2012-10-05 19:51 ` Stephen Warren
2012-10-08 20:06 ` Simon Glass
2012-10-08 20:26 ` Tom Warren
2012-10-08 21:30 ` Stephen Warren
2012-10-08 21:50 ` Simon Glass
2012-10-08 22:38 ` Stephen Warren
2012-10-03 23:00 ` Stephen Warren
2012-10-04 0:19 ` Simon Glass
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