linux-kernel - Re: [PATCH 3/7] clk: stm32mp1: set ck

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Message-ID: <155008009213.115909.12905657780692674136@swboyd.mtv.corp.google.com>
Date:   Wed, 13 Feb 2019 09:48:12 -0800
From:   Stephen Boyd <sboyd@...nel.org>
To:     Alexandre Torgue <alexandre.torgue@...com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Michael Turquette <mturquette@...libre.com>,
        gabriel.fernandez@...com
Cc:     linux-clk@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Gabriel Fernandez <gabriel.fernandez@...com>
Subject: Re: [PATCH 3/7] clk: stm32mp1: set ck_csi as critical clock

Quoting gabriel.fernandez@...com (2019-02-12 05:51:50)
> From: Gabriel Fernandez <gabriel.fernandez@...com>
> 
> ck_csi is used for IO compensation so it should be
> considered as "always-on" and kept on.
> 
> Signed-off-by: Gabriel Fernandez <gabriel.fernandez@...com>
> ---
>  drivers/clk/clk-stm32mp1.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/clk/clk-stm32mp1.c b/drivers/clk/clk-stm32mp1.c
> index e72079de83f4..5b30e4eeca2c 100644
> --- a/drivers/clk/clk-stm32mp1.c
> +++ b/drivers/clk/clk-stm32mp1.c
> @@ -1661,7 +1661,8 @@ static const struct clock_config stm32mp1_clock_cfg[] = {
>  
>         /*  External / Internal Oscillators */
>         GATE_MP1(CK_HSE, "ck_hse", "clk-hse", 0, RCC_OCENSETR, 8, 0),
> -       GATE_MP1(CK_CSI, "ck_csi", "clk-csi", 0, RCC_OCENSETR, 4, 0),
> +       GATE_MP1(CK_CSI, "ck_csi", "clk-csi", CLK_IS_CRITICAL,

Please add a comment to the code indicating this so we know why critical
is here without reading git history.