[net-next,v2] [PATCH net-next v2] net: wwan: t7xx: Change PM_AUTOSUSPEND_MS to 5000

Andrew Lunn andrew at lunn.ch
Thu Nov 14 07:33:16 PST 2024


On Thu, Nov 14, 2024 at 06:20:02PM +0800, wojackbb at gmail.com wrote:
> From: Jack Wu <wojackbb at gmail.com>
> 
> Because optimizing the power consumption of t7XX,
> change auto suspend time to 5000.
> 
> The Tests uses a script to loop through the power_state
> of t7XX.
> (for example: /sys/bus/pci/devices/0000\:72\:00.0/power_state)
> 
> * If Auto suspend is 20 seconds,
>   test script show power_state have 0~5% of the time was in D3 state
>   when host don't have data packet transmission.
> 
> * Changed auto suspend time to 5 seconds,
>   test script show power_state have 50%~80% of the time was in D3 state
>   when host don't have data packet transmission.
> 
> We tested Fibocom FM350 and our products using the t7xx and they all
> benefited from this.
> 
> Signed-off-by: Jack Wu <wojackbb at gmail.com>

Reviewed-by: Andrew Lunn <andrew at lunn.ch>

    Andrew



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