From mboxrd@z Thu Jan  1 00:00:00 1970
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Mon, 20 Dec 2010 23:00:10 +0000
Subject: Re: about ap4evb HDMI video
Message-Id: <Pine.LNX.4.64.1012202355010.16079@axis700.grange>
List-Id: <linux-sh.vger.kernel.org>
References: <w3pbp4g6enp.wl%kuninori.morimoto.gx@renesas.com>
In-Reply-To: <w3pbp4g6enp.wl%kuninori.morimoto.gx@renesas.com>
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To: linux-sh@vger.kernel.org

On Mon, 20 Dec 2010, Kuninori Morimoto wrote:

> 
> Dear Guennadi, Magnus, Paul
> 
> Now I'm using paul/rmobile-latest tree,
> and HDMI video doens't work on mach-ap4evb board.
> 
> It print below when boot.
> Why is this happen ?

Strange, it works for me with the same board and branch as of commit 
09dd7ded60019d6a4fd2ae20a08c4ad2bc3ed3e9 and without any warnings. I'll 
forward you off-list my .config.

Thanks
Guennadi

> 
> ---------------
> ...
> msgmni has been set to 500
> io scheduler noop registered (default)
> sh-mobile-hdmi sh-mobile-hdmi: Detected HDMI controller 0x0:0x0
> sh-mobile-hdmi sh-mobile-hdmi: clocks managed by runtime pm
> sh_mobile_lcdc_fb sh_mobile_lcdc_fb.1: clocks managed by runtime pm
> ------------[ cut here ]------------
> WARNING: at /opt/usr/src/WORK/morimoto/gitlinux/linux-2.6/mm/page_alloc.c:1985 )
> Modules linked in:
> [<c002a220>] (unwind_backtrace+0x0/0xe4) from [<c0033b80>] (warn_slowpath_commo)
> [<c0033b80>] (warn_slowpath_common+0x4c/0x64) from [<c0033bb0>] (warn_slowpath_)
> [<c0033bb0>] (warn_slowpath_null+0x18/0x1c) from [<c0063808>] (__alloc_pages_no)
> [<c0063808>] (__alloc_pages_nodemask+0x144/0x528) from [<c002ac90>] (__dma_allo)
> [<c002ac90>] (__dma_alloc+0x90/0x2a4) from [<c002af1c>] (dma_alloc_coherent+0x5)
> [<c002af1c>] (dma_alloc_coherent+0x54/0x60) from [<c026616c>] (sh_mobile_lcdc_p)
> [<c026616c>] (sh_mobile_lcdc_probe+0x5ac/0x820) from [<c017e8fc>] (platform_drv)
> [<c017e8fc>] (platform_drv_probe+0x14/0x18) from [<c017dab8>] (driver_probe_dev)
> [<c017dab8>] (driver_probe_device+0xc8/0x184) from [<c017dbd4>] (__driver_attac)
> [<c017dbd4>] (__driver_attach+0x60/0x84) from [<c017d324>] (bus_for_each_dev+0x)
> [<c017d324>] (bus_for_each_dev+0x48/0x74) from [<c017cc90>] (bus_add_driver+0x9)
> [<c017cc90>] (bus_add_driver+0x9c/0x20c) from [<c017dec4>] (driver_register+0xa)
> [<c017dec4>] (driver_register+0xa8/0x138) from [<c00253ac>] (do_one_initcall+0x)
> [<c00253ac>] (do_one_initcall+0xcc/0x1a0) from [<c00083c4>] (kernel_init+0x94/0)
> [<c00083c4>] (kernel_init+0x94/0x14c) from [<c0026830>] (kernel_thread_exit+0x0)
> ---[ end trace dec6997083161631 ]---
> sh_mobile_lcdc_fb sh_mobile_lcdc_fb.1: unable to allocate buffer
> sh_mobile_lcdc_fb: probe of sh_mobile_lcdc_fb.1 failed with error -12
> sh_mobile_lcdc_fb sh_mobile_lcdc_fb.0: clocks managed by runtime pm
> Console: switching to colour frame buffer device 100x30
> graphics fb0: registered sh_mobile_lcdc_fb/mainlcd as 800x480 16bpp.
> ...
> ---------------
> 
> Best regards
> --
> Kuninori Morimoto
>  
> 

---
Guennadi Liakhovetski, Ph.D.
Freelance Open-Source Software Developer
http://www.open-technology.de/