Re: [PATCH 4/9] omap: improve OMAP3_HAS_FEATURE

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* Nishanth Menon <nm@xxxxxx> [100623 05:10]:
> Replace OMAP3_HAS_FEATURE with OMAP_HAS_FEATURE allowing
> us to support multiple chip features
> 
> Cc: Tony Lindgren <tony@xxxxxxxxxxx>
> Cc: Angelo Arrifano <miknix@xxxxxxxxx>
> Cc: "Zebediah C. McClure" <zmc@xxxxxxxxxx>
> Cc: Alistair Buxton <a.j.buxton@xxxxxxxxx>
> Cc: Paul Walmsley <paul@xxxxxxxxx>
> Cc: Sanjeev Premi <premi@xxxxxx>
> Cc: Santosh Shilimkar <santosh.shilimkar@xxxxxx>
> Cc: Senthilvadivu Gurusamy <svadivu@xxxxxx>
> Cc: Kevin Hilman <khilman@xxxxxxxxxxxxxxxxxxx>
> Cc: Tomi Valkeinen <tomi.valkeinen@xxxxxxxxx>
> Cc: Aaro Koskinen <aaro.koskinen@xxxxxxxxx>
> Cc: Vikram Pandita <vikram.pandita@xxxxxx>
> Cc: Vishwanath S <vishwa.s@xxxxxx>
> Cc: linux-omap@xxxxxxxxxxxxxxx
> 
> Signed-off-by: Nishanth Menon <nm@xxxxxx>
> ---
>  arch/arm/plat-omap/include/plat/cpu.h |   24 ++++++++++++------------
>  1 files changed, 12 insertions(+), 12 deletions(-)
> 
> diff --git a/arch/arm/plat-omap/include/plat/cpu.h b/arch/arm/plat-omap/include/plat/cpu.h
> index 5f12a0b..c71dbf4 100644
> --- a/arch/arm/plat-omap/include/plat/cpu.h
> +++ b/arch/arm/plat-omap/include/plat/cpu.h
> @@ -444,6 +444,12 @@ static inline void omap1_check_revision(void) {}
>  #endif
>  void omap_check_revision(void);
>  
> +#define OMAP_HAS_FEATURE(rev, feat, flag)				\
> +static inline unsigned int omap##rev##_has_ ##feat(void)		\
> +{									\
> +	return omap##rev##_features & OMAP##rev##_HAS_ ##flag;		\
> +}									\
> +
>  /*
>   * Runtime detection of OMAP3 features
>   */
> @@ -456,17 +462,11 @@ extern u32 omap3_features;
>  #define OMAP3_HAS_ISP			BIT(4)
>  #define OMAP3_HAS_192MHZ_CLK		BIT(5)
>  
> -#define OMAP3_HAS_FEATURE(feat,flag)			\
> -static inline unsigned int omap3_has_ ##feat(void)	\
> -{							\
> -	return (omap3_features & OMAP3_HAS_ ##flag);	\
> -}							\
> -
> -OMAP3_HAS_FEATURE(l2cache, L2CACHE)
> -OMAP3_HAS_FEATURE(sgx, SGX)
> -OMAP3_HAS_FEATURE(iva, IVA)
> -OMAP3_HAS_FEATURE(neon, NEON)
> -OMAP3_HAS_FEATURE(isp, ISP)
> -OMAP3_HAS_FEATURE(192mhz_clk, 192MHZ_CLK)
> +OMAP_HAS_FEATURE(3, l2cache, L2CACHE)
> +OMAP_HAS_FEATURE(3, sgx, SGX)
> +OMAP_HAS_FEATURE(3, iva, IVA)
> +OMAP_HAS_FEATURE(3, neon, NEON)
> +OMAP_HAS_FEATURE(3, isp, ISP)
> +OMAP_HAS_FEATURE(3, 192mhz_clk, 192MHZ_CLK)

Why don't you just rename u32 omap3_features to omap_features?

Then maybe move omap_features to plat-omap/common.c, and have
a generic function for getting features?

There should not be any need to have separate features variable
for each omap.

Tony
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