RE: [PATCH 11/13] DSPBRIDGE: Set VDD1 OPP1 unconditionally while moving to off mode

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Hi,

> -----Original Message-----
> From: Ameya Palande [mailto:ameya.palande@xxxxxxxxx]
> Sent: Wednesday, July 15, 2009 9:57 AM
> To: linux-omap@xxxxxxxxxxxxxxx
> Cc: Ramirez Luna, Omar; Guzman Lugo, Fernando; Menon, Nishanth;
> hiroshi.doyu@xxxxxxxxx
> Subject: [PATCH 11/13] DSPBRIDGE: Set VDD1 OPP1 unconditionally while
> moving to off mode
> 
> Signed-off-by: Ameya Palande <ameya.palande@xxxxxxxxx>
> ---
>  drivers/dsp/bridge/wmd/tiomap3430_pwr.c |   18 ++++++++++--------
>  1 files changed, 10 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/dsp/bridge/wmd/tiomap3430_pwr.c
> b/drivers/dsp/bridge/wmd/tiomap3430_pwr.c
> index 7cc29b7..7c7d9c4 100644
> --- a/drivers/dsp/bridge/wmd/tiomap3430_pwr.c
> +++ b/drivers/dsp/bridge/wmd/tiomap3430_pwr.c
> @@ -167,17 +167,19 @@ DSP_STATUS handle_hibernation_fromDSP(struct
> WMD_DEV_CONTEXT *pDevContext)
>  			if (DSP_FAILED(status))
>  				return status;
>  			IO_SHMsetting(hIOMgr, SHM_GETOPP, &opplevel);
> -			/* Set the OPP to low level before moving to OFF mode */
>  			if (opplevel != VDD1_OPP1) {
>  				DBG_Trace(DBG_LEVEL5,
> -					"Tiomap_pwr.c - DSP requested"
> -					" OPP = %d, MPU requesting low"
> -					" OPP %d instead\n", opplevel,
> -					VDD1_OPP1);
> -				if (pdata->dsp_set_min_opp)
> -					(*pdata->dsp_set_min_opp)(VDD1_OPP1);
> -				status = DSP_SOK;
> +					" DSP requested OPP = %d, MPU"
> +					" requesting low OPP %d instead\n",
> +					opplevel, VDD1_OPP1);
>  			}
> +			/*
> +			 * Set the OPP to low level before moving to OFF
> +			 * mode
> +			 */
> +			if (pdata->dsp_set_min_opp)
> +				(*pdata->dsp_set_min_opp)(VDD1_OPP1);
> +			status = DSP_SOK;

I think that the "if statement" is only avoiding setting the OPP1 if the DSP is already in OPP1. Were you seeing an issue without this change?

>  #endif /* CONFIG_BRIDGE_DVFS */
>  		} else {
>  			DBG_Trace(DBG_LEVEL7,
> --
> 1.6.2.4
> 

Regards,
Fernando.

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