linux-kernel - Re: [PATCH] clk: sunxi-ng: ccu-sun6i-rtc: set rtc-32k to critical

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Message-ID: <5560593.DvuYhMxLoT@kista>
Date:   Sun, 24 Apr 2022 21:55:17 +0200
From:   Jernej Škrabec <jernej.skrabec@...il.com>
To:     Chen-Yu Tsai <wens@...e.org>, Samuel Holland <samuel@...lland.org>,
        Icenowy Zheng <uwu@...nowy.me>
Cc:     linux-clk@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-sunxi@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Icenowy Zheng <uwu@...nowy.me>
Subject: Re: [PATCH] clk: sunxi-ng: ccu-sun6i-rtc: set rtc-32k to critical

Dne nedelja, 24. april 2022 ob 07:59:59 CEST je Icenowy Zheng napisal(a):
> RTC itself is the one and only consumer of rtc-32k clock. As the rtc
> should be always running, set rtc-32k clock to critical, to prevent it
> from being gated by the kernel.
> 
> Fixes: d91612d7f01a ("clk: sunxi-ng: Add support for the sun6i RTC clocks")
> Signed-off-by: Icenowy Zheng <uwu@...nowy.me>

This one was already submitted here:
https://lore.kernel.org/linux-sunxi/20220411050100.40964-1-samuel@sholland.org/

Best regards,
Jernej

> ---
>  drivers/clk/sunxi-ng/ccu-sun6i-rtc.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/clk/sunxi-ng/ccu-sun6i-rtc.c b/drivers/clk/sunxi-ng/ccu-
sun6i-rtc.c
> index 8a10bade7e0d..3d9c9ce5a3db 100644
> --- a/drivers/clk/sunxi-ng/ccu-sun6i-rtc.c
> +++ b/drivers/clk/sunxi-ng/ccu-sun6i-rtc.c
> @@ -241,6 +241,7 @@ static struct clk_init_data rtc_32k_init_data = {
>  	.ops		= &ccu_mux_ops,
>  	.parent_hws	= rtc_32k_parents,
>  	.num_parents	= ARRAY_SIZE(rtc_32k_parents), /* updated 
during probe */
> +	.flags		= CLK_IS_CRITICAL,
>  };
>  
>  static struct ccu_mux rtc_32k_clk = {
> -- 
> 2.35.1
> 
> 
>