Re: [PATCH 2/5] OMAP3: PM: Disabled I2C4 repeated start operation mode

[Kevin Hilman <khilman@deeprootsystems.com>]

Tero Kristo <tero.kristo@nokia.com> writes:

> From: Tero Kristo <tero.kristo@nokia.com>
>
> Repeated start forces I2C4 pads low during idle, which increases power
> consumption through external pull-ups. On the other hand, this change
> increases I2C4 command latencies somewhat due to additional master code
> sent in the beginning of each I2C4 command (8 bits data + start + ack bits
> in fast/standard mode => increases total command duration from 25us to 50us.)
>
> Signed-off-by: Tero Kristo <tero.kristo@nokia.com>

Thanks, applying this version to PM branch.

Kevin

> ---
>  arch/arm/mach-omap2/pm34xx.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
> index b97f7d8..796d726 100644
> --- a/arch/arm/mach-omap2/pm34xx.c
> +++ b/arch/arm/mach-omap2/pm34xx.c
> @@ -1221,7 +1221,7 @@ static void __init configure_vc(void)
>  	prm_write_mod_reg(OMAP3430_CMD1 | OMAP3430_RAV1, OMAP3430_GR_MOD,
>  			  OMAP3_PRM_VC_CH_CONF_OFFSET);
>  
> -	prm_write_mod_reg(OMAP3430_MCODE_SHIFT | OMAP3430_HSEN | OMAP3430_SREN,
> +	prm_write_mod_reg(OMAP3430_MCODE_SHIFT | OMAP3430_HSEN,
>  			  OMAP3430_GR_MOD,
>  			  OMAP3_PRM_VC_I2C_CFG_OFFSET);
>  
> -- 
> 1.5.4.3
>
> --
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