RE: [PATCH v2 07/11] OMAP2/3/4: DMA: HWMOD: Device registration

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> -----Original Message-----
> From: Balbi, Felipe 
> Sent: Thursday, September 16, 2010 11:33 AM
> To: G, Manjunath Kondaiah
> Cc: Balbi, Felipe; Kevin Hilman; linux-omap@xxxxxxxxxxxxxxx; 
> Cousson, Benoit; Shilimkar, Santosh
> Subject: Re: [PATCH v2 07/11] OMAP2/3/4: DMA: HWMOD: Device 
> registration
> 
> Hi,
> 
> On Wed, Sep 15, 2010 at 10:40:08PM -0500, G, Manjunath Kondaiah wrote:
> >In that case, the dma_read/dma_write macros will be splitted into:
> >
> >static inline void omap1_dma_write(...); static inline void 
> >omap2_dma_write(...); static inline u32 omap1_dma_read(...); static 
> >inline u32 omap2_dma_read(...);
> >
> >i.e., Two macro definitions will expand into four internal functions.
> 
> why do you need separate methods for omap1 and omap2 ??

Current macro definition is:

#define dma_read(reg)                                                   \
({                                                                      \
        u32 __val;                                                      \
        if (cpu_class_is_omap1())                                       \
                __val = __raw_readw(omap_dma_base + OMAP1_DMA_##reg);   \
        else                                                            \
                __val = __raw_readl(omap_dma_base + OMAP_DMA4_##reg);   \
        __val;                                                          \
})

Since we are expanding abbrevated register offsets into full macro, hence
these macros should be used in respective read/write functions(omap1 and omap2plus).

Any other better methods?

-Manjunath--
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