linux-kernel - Re: [PATCH] clk: Add support for enabling/disabling clocks from debugfs

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Message-ID: <d8af2119-1d1e-44b1-a18b-3b99069b1ca0@codeaurora.org>
Date:   Mon, 20 Jul 2020 19:30:19 -0700
From:   Mike Tipton <mdtipton@...eaurora.org>
To:     sboyd@...nel.org, mturquette@...libre.com
Cc:     linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org,
        tdas@...eaurora.org
Subject: Re: [PATCH] clk: Add support for enabling/disabling clocks from
 debugfs

On 6/29/2020 5:30 PM, Mike Tipton wrote:
> For test and debug purposes, it's often necessary to enable or disable
> clocks from shell. Add a new debugfs file (clk_prepare_enable) that
> calls clk_prepare_enable() when writing "1" and clk_disable_unprepare()
> when writing "0".
> 
> This can have security implications, so only support it when the code
> has been modified to #define CLOCK_ALLOW_WRITE_DEBUGS.
> 
> Signed-off-by: Mike Tipton <mdtipton@...eaurora.org>
> ---
>   drivers/clk/clk.c | 38 ++++++++++++++++++++++++++++++++++----
>   1 file changed, 34 insertions(+), 4 deletions(-)
> 

Friendly reminder.

Thanks,
Mike