RE: [PATCH v1 2/2] scsi: ufs-mediatek: Add UFS support for Mediatek SoC chips

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Hi Avri,

On Fri, 2019-02-22 at 10:29 +0000, Avri Altman wrote:
> Hi,
> 
> > +
> > +struct ufs_mtk_dev_params {
> > +	u32 pwm_rx_gear;        /* pwm rx gear to work in */
> > +	u32 pwm_tx_gear;        /* pwm tx gear to work in */
> > +	u32 hs_rx_gear;         /* hs rx gear to work in */
> > +	u32 hs_tx_gear;         /* hs tx gear to work in */
> > +	u32 rx_lanes;           /* number of rx lanes */
> > +	u32 tx_lanes;           /* number of tx lanes */
> > +	u32 rx_pwr_pwm;         /* rx pwm working pwr */
> > +	u32 tx_pwr_pwm;         /* tx pwm working pwr */
> > +	u32 rx_pwr_hs;          /* rx hs working pwr */
> > +	u32 tx_pwr_hs;          /* tx hs working pwr */
> > +	u32 hs_rate;            /* rate A/B to work in HS */
> > +	u32 desired_working_mode;
> > +};
> As this is essentially identical to ufs_qcom_dev_params and ufs_hisi_dev_params etc.,
> Maybe move it to ufshcd-platform.h in a short preparatory patch, so it can be reused?
> 

Good suggestion. This is currently also our preferred way to define host
limitation. I can help re-factor this in next patch.

> Also, the vast majority of the code in these platform-dependent modules is pretty much the same.
> I wonder if it can be shape to fit some standard form?
> But this is out of scope of your series.
> 

Currently ufs-mediatek driver is a "shell" only for basic UFS operations
in Mediatek SoC chips. We are planning to try to add more rich features
in the near future and thus more and more different platform-dependent
codes will be uploaded.

However, as you mentioned, there may be still lots of similar codes and
flows in these platform-dependent drivers. And we can think how to
simplify or standardize them later.

> 
> > +/*
> > + * PHY Adpater attributes
> > + */
> > +#define PA_LOCALTXLCCENABLE         0x155E
> Already in unipro.h

Will remove this.

> 
> Thanks,
> Avri

Thanks,
Stanley

> 
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