linux-kernel - Re: [PATCH] clk: add debug message showing which unused clocks are disabled on boot

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Message-ID: <27ded6a4ebd67cef0d4b472a2aea442e.sboyd@kernel.org>
Date:   Wed, 29 Mar 2023 14:49:50 -0700
From:   Stephen Boyd <sboyd@...nel.org>
To:     Brian Masney <bmasney@...hat.com>, mturquette@...libre.com
Cc:     linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] clk: add debug message showing which unused clocks are disabled on boot

Quoting Brian Masney (2022-11-17 02:58:29)
> The clk framework on bootup will automatically disable all unused clocks
> on bootup unless the clk_ignore_unused kernel parameter is present.
> Let's add a basic debugging log statement here that shows which clocks
> are disabled. There is already tracepoint present here as well, but
> there's nothing like a simple, good ol' fashioned printk for simplicity.
> 
> Signed-off-by: Brian Masney <bmasney@...hat.com>
> ---

I'd like to see a documentation update instead that covers how to enable
the tracepoint on the kernel commandline and have it print to the serial
console.