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List:       linux-fbdev
Subject:    Re: [PATCH] video: ARM CLCD: export symbols for driver module
From:       Tomi Valkeinen <tomi.valkeinen () ti ! com>
Date:       2016-08-30 8:55:59
Message-ID: a32cc9c5-7440-2f79-b714-a60a830ab926 () ti ! com
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On 26/08/16 18:34, Arnd Bergmann wrote:
> The amba-clcd-versatile.c code is always built-in and has to
> be done that way because it gets called by platform code that is
> also built-in. However, it now also gets called from the
> core CLCD driver through the .init_panel callback function,
> which leads to a build error when the framebuffer is configured
> as a loadable module:
> 
> ERROR: "versatile_clcd_init_panel" [drivers/video/fbdev/amba-clcd-mod.ko] undefined!
> 
> The same thing happens for the nomadik driver, although that
> could be linked into the core module if we want to:
> 
> ERROR: "nomadik_clcd_init_panel" [drivers/video/fbdev/amba-clcd.ko] undefined!
> ERROR: "nomadik_clcd_init_board" [drivers/video/fbdev/amba-clcd.ko] undefined!
> 
> For consistency, I'm taking the same approach in both cases here
> and just export the functions to make them usable by the driver.
> 
> Alternatively, we could split out the CONFIG_OF-code from amba-clcd-versatile.c
> into a new file and link those two together with the core driver as one
> module.
> 
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> Fixes: 1d3f0cbe0d3a ("video: ARM CLCD: add special board and panel hooks for Nomadik")
> Fixes: 25348160e9a4 ("video: ARM CLCD: add special panel hook for Versatiles")
> ---
>  drivers/video/fbdev/amba-clcd-nomadik.c   | 2 ++
>  drivers/video/fbdev/amba-clcd-versatile.c | 2 +-
>  2 files changed, 3 insertions(+), 1 deletion(-)

Thanks, queued for 4.9.

 Tomi


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