linux-kernel - Re: [PATCH] clk: mediatek: reset: Remove unused mtk_register_reset

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Message-ID: <CAC=S1nhmuGfaQrK-3TZzY3-c1_cDbB5g_Zp2nXOzg6zQZ-j4Lw@mail.gmail.com>
Date: Thu, 18 Jul 2024 17:41:39 +0800
From: Fei Shao <fshao@...omium.org>
To: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Cc: sboyd@...nel.org, matthias.bgg@...il.com, mturquette@...libre.com, 
	p.zabel@...gutronix.de, linux-kernel@...r.kernel.org, 
	linux-arm-kernel@...ts.infradead.org, linux-mediatek@...ts.infradead.org, 
	linux-clk@...r.kernel.org, kernel@...labora.com
Subject: Re: [PATCH] clk: mediatek: reset: Remove unused mtk_register_reset_controller()

On Thu, Jul 18, 2024 at 4:26 PM AngeloGioacchino Del Regno
<angelogioacchino.delregno@...labora.com> wrote:
>
> Now that all clock controllers have been migrated to the new
> mtk_register_reset_controller_with_dev() function, the one taking
> struct device node is now unused: remove it.
>
> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
> ---
>  drivers/clk/mediatek/reset.c | 59 ------------------------------------
>  drivers/clk/mediatek/reset.h | 10 ------
>  2 files changed, 69 deletions(-)
>
> diff --git a/drivers/clk/mediatek/reset.c b/drivers/clk/mediatek/reset.c
> index 290ceda84ce4..069f9e909cb0 100644
> --- a/drivers/clk/mediatek/reset.c
> +++ b/drivers/clk/mediatek/reset.c
> @@ -110,65 +110,6 @@ static int reset_xlate(struct reset_controller_dev *rcdev,
>         return data->desc->rst_idx_map[reset_spec->args[0]];
>  }
>
> -int mtk_register_reset_controller(struct device_node *np,
> -                                 const struct mtk_clk_rst_desc *desc)
> -{
> -       struct regmap *regmap;
> -       const struct reset_control_ops *rcops = NULL;
> -       struct mtk_clk_rst_data *data;
> -       int ret;
> -
> -       if (!desc) {
> -               pr_err("mtk clock reset desc is NULL\n");
> -               return -EINVAL;
> -       }
> -
> -       switch (desc->version) {
> -       case MTK_RST_SIMPLE:
> -               rcops = &mtk_reset_ops;
> -               break;
> -       case MTK_RST_SET_CLR:
> -               rcops = &mtk_reset_ops_set_clr;
> -               break;
> -       default:
> -               pr_err("Unknown reset version %d\n", desc->version);
> -               return -EINVAL;
> -       }
> -
> -       regmap = device_node_to_regmap(np);
> -       if (IS_ERR(regmap)) {
> -               pr_err("Cannot find regmap for %pOF: %pe\n", np, regmap);
> -               return -EINVAL;
> -       }
> -
> -       data = kzalloc(sizeof(*data), GFP_KERNEL);
> -       if (!data)
> -               return -ENOMEM;
> -
> -       data->desc = desc;
> -       data->regmap = regmap;
> -       data->rcdev.owner = THIS_MODULE;
> -       data->rcdev.ops = rcops;
> -       data->rcdev.of_node = np;
> -
> -       if (data->desc->rst_idx_map_nr > 0) {
> -               data->rcdev.of_reset_n_cells = 1;
> -               data->rcdev.nr_resets = desc->rst_idx_map_nr;
> -               data->rcdev.of_xlate = reset_xlate;
> -       } else {
> -               data->rcdev.nr_resets = desc->rst_bank_nr * RST_NR_PER_BANK;
> -       }
> -
> -       ret = reset_controller_register(&data->rcdev);
> -       if (ret) {
> -               pr_err("could not register reset controller: %d\n", ret);
> -               kfree(data);
> -               return ret;
> -       }
> -
> -       return 0;
> -}
> -
>  int mtk_register_reset_controller_with_dev(struct device *dev,
>                                            const struct mtk_clk_rst_desc *desc)

I guess that means the "_with_dev" suffix here becomes redundant and
therefore can be removed.
Do you want to update it all together?

Regards,
Fei


>  {
> diff --git a/drivers/clk/mediatek/reset.h b/drivers/clk/mediatek/reset.h
> index 6a58a3d59165..562ffd290a22 100644
> --- a/drivers/clk/mediatek/reset.h
> +++ b/drivers/clk/mediatek/reset.h
> @@ -59,16 +59,6 @@ struct mtk_clk_rst_data {
>         const struct mtk_clk_rst_desc *desc;
>  };
>
> -/**
> - * mtk_register_reset_controller - Register MediaTek clock reset controller
> - * @np: Pointer to device node.
> - * @desc: Constant pointer to description of clock reset.
> - *
> - * Return: 0 on success and errorno otherwise.
> - */
> -int mtk_register_reset_controller(struct device_node *np,
> -                                 const struct mtk_clk_rst_desc *desc);
> -
>  /**
>   * mtk_register_reset_controller - Register mediatek clock reset controller with device
>   * @np: Pointer to device.
> --
> 2.45.2
>
>