linux-kernel - Re: [PATCH V3] clk: imx8m: fix bus critical clk registration

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Message-ID: <160453879574.3965362.14789600439446175918@swboyd.mtv.corp.google.com>
Date:   Wed, 04 Nov 2020 17:13:15 -0800
From:   Stephen Boyd <sboyd@...nel.org>
To:     abel.vesa@....com, festevam@...il.com, peng.fan@....com,
        s.hauer@...gutronix.de, shawnguo@...nel.org
Cc:     kernel@...gutronix.de, linux-imx@....com, Anson.Huang@....com,
        linux-clk@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, aisheng.dong@....com,
        Peng Fan <peng.fan@....com>
Subject: Re: [PATCH V3] clk: imx8m: fix bus critical clk registration

Quoting peng.fan@....com (2020-11-01 03:23:54)
> From: Peng Fan <peng.fan@....com>
> 
> noc/axi/ahb are bus clk, not peripheral clk.
> Since peripheral clk has a limitation that for peripheral clock slice,
> IP clock slices must be stopped to change the clock source.
> 
> However if the bus clk is marked as critical clk peripheral, the
> assigned clock parent operation will fail.
> 
> So we added CLK_SET_PARENT_GATE flag to avoid glitch.
> 
> And add imx8m_clk_hw_composite_bus_critical for bus critical clock usage
> 
> Fixes: 936c383673b9e ("clk: imx: fix composite peripheral flags")
> Reviewed-by: Abel Vesa <abel.vesa@....com>
> Reported-by: Abel Vesa <abel.vesa@....com>
> Signed-off-by: Peng Fan <peng.fan@....com>
> ---

Applied to clk-fixes