Re: [PATCH v9 1/4] clk: meson: add one based divider support for sclk

From: Stephen Boyd
Date: Thu Jan 13 2022 - 16:28:06 EST


Quoting Liang Yang (2022-01-13 03:57:42)
> diff --git a/drivers/clk/meson/sclk-div.c b/drivers/clk/meson/sclk-div.c
> index 76d31c0a3342..79c9efd28115 100644
> --- a/drivers/clk/meson/sclk-div.c
> +++ b/drivers/clk/meson/sclk-div.c
> @@ -28,22 +29,39 @@ meson_sclk_div_data(struct clk_regmap *clk)
> return (struct meson_sclk_div_data *)clk->data;
> }
>
> -static int sclk_div_maxval(struct meson_sclk_div_data *sclk)
> +static inline int sclk_get_reg(int val, unsigned char flag)
> {
> - return (1 << sclk->div.width) - 1;
> + if ((flag & MESON_SCLK_ONE_BASED) || !val)
> + return val;
> + else
> + return val - 1;

Please drop the else

> +}
> +
> +static inline int sclk_get_divider(int reg, unsigned char flag)
> +{
> + if (flag & MESON_SCLK_ONE_BASED)
> + return reg;
> + else

Please drop the else

> + return reg + 1;
> }
>
> static int sclk_div_maxdiv(struct meson_sclk_div_data *sclk)
> {
> - return sclk_div_maxval(sclk) + 1;