Re: [PATCH v2 4/5] reset: qcom: Add PDC Global reset signals for WPSS

[Sibi Sankar]

Hey Philipp,

Thanks for the review. Will get them
fixed in the next re-spin.

On 2021-04-27 13:28, Philipp Zabel wrote:
> Hi Sibi,
>
> On Tue, 2021-04-27 at 13:03 +0530, Sibi Sankar wrote:
> > Add PDC Global reset signals for Wireless Processor Subsystem (WPSS)
> > on SC7280 SoCs.
> >
> > Signed-off-by: Sibi Sankar <sibis@xxxxxxxxxxxxxx>
> > ---
> >
> > v2:
> >  * place resets and num_resets adjacent to each other [Stephen]
> [...]
> > +struct qcom_pdc_reset_desc {
> > +	const struct qcom_pdc_reset_map *resets;
> > +	size_t num_resets;
> > +	unsigned int offset;
> > +};
> [...]
>
> For consistency, please do the same here:
>
> > +static const struct qcom_pdc_reset_desc sdm845_pdc_reset_desc = {
> > +	.resets = sdm845_pdc_resets,
> > +	.offset = RPMH_SDM845_PDC_SYNC_RESET,
> > +	.num_resets = ARRAY_SIZE(sdm845_pdc_resets),
> > +};
> [...]
>
> and here:
>
> > +static const struct qcom_pdc_reset_desc sc7280_pdc_reset_desc = {
> > +	.resets = sc7280_pdc_resets,
> > +	.offset = RPMH_SC7280_PDC_SYNC_RESET,
> > +	.num_resets = ARRAY_SIZE(sc7280_pdc_resets),
> > +};
>
> [...]
> > @@ -54,19 +89,18 @@ static int qcom_pdc_control_assert(struct 
> > reset_controller_dev *rcdev,
> >  					unsigned long idx)
> >  {
> >  	struct qcom_pdc_reset_data *data = to_qcom_pdc_reset_data(rcdev);
> > +	const struct qcom_pdc_reset_map *map = &data->desc->resets[idx];
> >
> > -	return regmap_update_bits(data->regmap, RPMH_PDC_SYNC_RESET,
> > -				  BIT(sdm845_pdc_resets[idx].bit),
> > -				  BIT(sdm845_pdc_resets[idx].bit));
> > +	return regmap_update_bits(data->regmap, data->desc->offset, 
> > BIT(map->bit), BIT(map->bit));
> >  }
>
> Why not go one step further:
>
> 	u32 mask = BIT(data->desc->resets[idx].bit);
>
> 	return regmap_update_bits(data->regmap, data->desc->offset, mask, 
> mask);
>
> That seems to be a common pattern in other qcom drivers.

will send out a separate patch for
the other reset driver.

> Either way, with the above reset/num_reset changes:
>
> Reviewed-by: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
>
> Also,
>
> Acked-by: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
>
> for the whole series to go through the qcom tree, or let me know if you
> want me to pick up patches 2-4 next round.
>
> regards
> Philipp

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