linux-kernel - Re: [PATCH v5 04/11] clk: sunxi-ng: Add feature to find closest rate

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Message-ID: <5854308.MhkbZ0Pkbq@jernej-laptop>
Date:   Sun, 06 Aug 2023 15:33:07 +0200
From:   Jernej Škrabec <jernej.skrabec@...il.com>
To:     Maxime Ripard <mripard@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>, Chen-Yu Tsai <wens@...e.org>,
        Samuel Holland <samuel@...lland.org>,
        Andre Przywara <andre.przywara@....com>,
        Roman Beranek <me@...y.cz>, Frank Oltmanns <frank@...manns.dev>
Cc:     linux-clk@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-sunxi@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Frank Oltmanns <frank@...manns.dev>
Subject: Re: [PATCH v5 04/11] clk: sunxi-ng: Add feature to find closest rate

Dne nedelja, 06. avgust 2023 ob 15:06:49 CEST je Frank Oltmanns napisal(a):
> The default behaviour of clocks in the sunxi-ng driver is to select a
> clock rate that is closest to but less than the requested rate.
> 
> Add the CCU_FEATURE_CLOSEST_RATE flag, which can be used to allow clocks
> to find the closest rate instead.
> 
> Acked-by: Maxime Ripard <mripard@...nel.org>
> Signed-off-by: Frank Oltmanns <frank@...manns.dev>

Acked-by: Jernej Skrabec <jernej.skrabec@...il.com>

Best regards,
Jernej

> ---
>  drivers/clk/sunxi-ng/ccu_common.h | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/clk/sunxi-ng/ccu_common.h
> b/drivers/clk/sunxi-ng/ccu_common.h index fbf16c6b896d..5ad219f041d5 100644
> --- a/drivers/clk/sunxi-ng/ccu_common.h
> +++ b/drivers/clk/sunxi-ng/ccu_common.h
> @@ -18,6 +18,7 @@
>  #define CCU_FEATURE_MMC_TIMING_SWITCH	BIT(6)
>  #define CCU_FEATURE_SIGMA_DELTA_MOD	BIT(7)
>  #define CCU_FEATURE_KEY_FIELD		BIT(8)
> +#define CCU_FEATURE_CLOSEST_RATE	BIT(9)
> 
>  /* MMC timing mode switch bit */
>  #define CCU_MMC_NEW_TIMING_MODE		BIT(30)