> 
> From: Bean Huo <[email protected]>
> 
> Currently UFS WriteBooster driver uses clock scaling up/down to set
> WB on/off, for the platform which doesn't support
> UFSHCD_CAP_CLK_SCALING,
> WB will be always on. Provide a sysfs attribute to enable/disable WB
> during runtime. Write 1/0 to "wb_on" sysfs node to enable/disable UFS WB.
> 
> Signed-off-by: Bean Huo <[email protected]>
Reviewed-by: Avri Altman <[email protected]>

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