From: tony@atomide•com (Tony Lindgren)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH] ARM: OMAP: RX-51: change probe order of touchscreen and panel SPI devices
Date: Wed, 8 May 2013 15:23:21 -0700 [thread overview]
Message-ID: <20130508222320.GL32546@atomide.com> (raw)
In-Reply-To: <1367427597-30060-1-git-send-email-aaro.koskinen@iki.fi>
* Aaro Koskinen <aaro.koskinen@iki•fi> [130501 10:06]:
> Commit 9fdca9df (spi: omap2-mcspi: convert to module_platform_driver)
> broke the SPI display/panel driver probe on RX-51/N900. The exact cause is
> not fully understood, but it seems to be related to the probe order. SPI
> communication to the panel driver (spi1.2) fails unless the touchscreen
> (spi1.0) has been probed/initialized before. When the omap2-mcspi driver
> was converted to a platform driver, it resulted in that the devices are
> probed immediately after the board registers them in the order they are
> listed in the board file.
>
> Fix the issue by moving the touchscreen before the panel in the SPI
> device list.
>
> The patch fixes the following failure:
>
> [ 1.260955] acx565akm spi1.2: invalid display ID
> [ 1.265899] panel-acx565akm display0: acx_panel_probe panel detect error
> [ 1.273071] omapdss CORE error: driver probe failed: -19
Thanks for updating the description, applying into omap-for-v3.10/fixes.
Regards,
Tony
prev parent reply other threads:[~2013-05-08 22:23 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-01 16:59 [PATCH] ARM: OMAP: RX-51: change probe order of touchscreen and panel SPI devices Aaro Koskinen
2013-05-08 22:23 ` Tony Lindgren [this message]
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