linux-kernel - Re: [PATCH 5/6] reset: qcom: Add PDC Global reset signals for WPSS

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Date:   Sat, 13 Mar 2021 13:40:06 -0800
From:   Stephen Boyd <swboyd@...omium.org>
To:     Sibi Sankar <sibis@...eaurora.org>, bjorn.andersson@...aro.org,
        p.zabel@...gutronix.de, robh+dt@...nel.org
Cc:     agross@...nel.org, mani@...nel.org, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Sibi Sankar <sibis@...eaurora.org>
Subject: Re: [PATCH 5/6] reset: qcom: Add PDC Global reset signals for WPSS

Quoting Sibi Sankar (2021-03-08 21:51:50)
> Add PDC Global reset signals for Wireless Processor Subsystem (WPSS)
> on SC7280 SoCs.
> 
> Signed-off-by: Sibi Sankar <sibis@...eaurora.org>
> ---
>  drivers/reset/reset-qcom-pdc.c | 62 ++++++++++++++++++++++++++++++++++--------
>  1 file changed, 51 insertions(+), 11 deletions(-)
> 
> diff --git a/drivers/reset/reset-qcom-pdc.c b/drivers/reset/reset-qcom-pdc.c
> index ab74bccd4a5b..bb7113ae6232 100644
> --- a/drivers/reset/reset-qcom-pdc.c
> +++ b/drivers/reset/reset-qcom-pdc.c
> @@ -11,18 +11,26 @@
>  
>  #include <dt-bindings/reset/qcom,sdm845-pdc.h>
>  
> -#define RPMH_PDC_SYNC_RESET    0x100
> +#define RPMH_SDM845_PDC_SYNC_RESET     0x100
> +#define RPMH_SC7280_PDC_SYNC_RESET     0x1000
>  
>  struct qcom_pdc_reset_map {
>         u8 bit;
>  };
>  
> +struct qcom_pdc_reset_desc {
> +       const struct qcom_pdc_reset_map *resets;
> +       unsigned int offset;
> +       size_t num_resets;

Please put num_resets next to resets and move offset before or after the
block. That way we know that resets and num_resets are related because
they're right next to each other.

> +};
> +
>  struct qcom_pdc_reset_data {
>         struct reset_controller_dev rcdev;
>         struct regmap *regmap;
> +       const struct qcom_pdc_reset_desc *desc;
>  };
>  
> -static const struct regmap_config sdm845_pdc_regmap_config = {
> +static const struct regmap_config pdc_regmap_config = {
>         .name           = "pdc-reset",
>         .reg_bits       = 32,
>         .reg_stride     = 4,