[PATCH] ARM: omap2: register cpufreq-cpu0 device for am33xx

[AnilKumar, Chimata]

On Wed, Jan 30, 2013 at 20:02:22, Shawn Guo wrote:
> The cpufreq-cpu0 driver changes to instantiate use platform_driver
> mechanism.  The patch is an am33xx platform level adaptation for it.

Tested-by: AnilKumar Ch <anilkumar at ti.com>

Hi Shawn,

I have tested your patch on AM335x-EVM, no issues observed.

I think, better post v3 version which contains this patch
and cpu0-cpufreq driver changes.

Or

Post v3 of cpufreq-cpu0 driver changes. 

Thanks
AnilKumar
 
> Signed-off-by: Shawn Guo <shawn.guo at linaro.org>
> ---
>  arch/arm/mach-omap2/board-generic.c   |    1 +
>  arch/arm/mach-omap2/cclock33xx_data.c |    2 +-
>  arch/arm/mach-omap2/common.h          |    1 +
>  arch/arm/mach-omap2/io.c              |    8 ++++++++
>  4 files changed, 11 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c
> index 53cb380b..b945480 100644
> --- a/arch/arm/mach-omap2/board-generic.c
> +++ b/arch/arm/mach-omap2/board-generic.c
> @@ -139,6 +139,7 @@ DT_MACHINE_START(AM33XX_DT, "Generic AM33XX (Flattened Device Tree)")
>  	.init_irq	= omap_intc_of_init,
>  	.handle_irq	= omap3_intc_handle_irq,
>  	.init_machine	= omap_generic_init,
> +	.init_late	= am33xx_init_late,
>  	.timer		= &omap3_am33xx_timer,
>  	.dt_compat	= am33xx_boards_compat,
>  MACHINE_END
> diff --git a/arch/arm/mach-omap2/cclock33xx_data.c b/arch/arm/mach-omap2/cclock33xx_data.c
> index ea64ad6..acb1620 100644
> --- a/arch/arm/mach-omap2/cclock33xx_data.c
> +++ b/arch/arm/mach-omap2/cclock33xx_data.c
> @@ -850,7 +850,7 @@ static struct omap_clk am33xx_clks[] = {
>  	CLK(NULL,	"dpll_core_m5_ck",	&dpll_core_m5_ck,	CK_AM33XX),
>  	CLK(NULL,	"dpll_core_m6_ck",	&dpll_core_m6_ck,	CK_AM33XX),
>  	CLK(NULL,	"dpll_mpu_ck",		&dpll_mpu_ck,	CK_AM33XX),
> -	CLK("cpu0",	NULL,			&dpll_mpu_ck,	CK_AM33XX),
> +	CLK("cpufreq-cpu0.0",	NULL,		&dpll_mpu_ck,	CK_AM33XX),
>  	CLK(NULL,	"dpll_mpu_m2_ck",	&dpll_mpu_m2_ck,	CK_AM33XX),
>  	CLK(NULL,	"dpll_ddr_ck",		&dpll_ddr_ck,	CK_AM33XX),
>  	CLK(NULL,	"dpll_ddr_m2_ck",	&dpll_ddr_m2_ck,	CK_AM33XX),
> diff --git a/arch/arm/mach-omap2/common.h b/arch/arm/mach-omap2/common.h
> index 948bcaa..e3355df5 100644
> --- a/arch/arm/mach-omap2/common.h
> +++ b/arch/arm/mach-omap2/common.h
> @@ -106,6 +106,7 @@ void omap2430_init_late(void);
>  void omap3430_init_late(void);
>  void omap35xx_init_late(void);
>  void omap3630_init_late(void);
> +void am33xx_init_late(void);
>  void am35xx_init_late(void);
>  void ti81xx_init_late(void);
>  void omap4430_init_late(void);
> diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
> index 2c3fdd6..0e67711 100644
> --- a/arch/arm/mach-omap2/io.c
> +++ b/arch/arm/mach-omap2/io.c
> @@ -535,6 +535,14 @@ void __init omap3630_init_late(void)
>  	omap2_clk_enable_autoidle_all();
>  }
>  
> +void __init am33xx_init_late(void)
> +{
> +	struct platform_device_info devinfo = { .name = "cpufreq-cpu0", };
> +
> +	if (IS_ENABLED(CONFIG_GENERIC_CPUFREQ_CPU0))
> +		platform_device_register_full(&devinfo);
> +}
> +
>  void __init am35xx_init_late(void)
>  {
>  	omap_mux_late_init();
> -- 
> 1.7.9.5
> 
> 
>