[alsa-devel] [PATCH] OMAP: Exporting functions doing common register access

Jarkko Nikula jhnikula at gmail.com
Wed Nov 18 15:33:14 CET 2009

On Wed, 18 Nov 2009 03:40:40 -0700 (MST)
Paul Walmsley <paul at pwsan.com> wrote:

> In the interim, I would suggest that you remove the the clock source and 
> receiver source change functions from omap-mcbsp.c, split them into OMAP1 
> and OMAP2/3 variants, and place them into arch/arm/mach-omap*/mcbsp.c.  
> Expand struct omap_mcbsp_ops to add function pointers to those functions.  
> Call those from soc/omap-mcbsp.c via mcbsp->pdata->ops. That way you won't 
> need those exports.
Paul: What's your opinnion, would it be possible or would it be wise to
handle these McBSP clock route setups with the clock framework instead?

Functions omap_mcbsp_dai_set_clks_src and omap_mcbsp_dai_set_rcvr_src
are basically just setting up the input clock for McBSP SRG or McBSP1

> I don't understand how this code compiled on OMAP1 in any case, since it 
> doesn't have a System Control Module.
OMAP1 can include control.h as well :-)

Access is anyway protected with the cpu_class_is_omap1().


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