linux-kernel - Re: [PATCH 0/3] clk: support regmap

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Message-ID: <162262192433.4130789.1017942859005253343@swboyd.mtv.corp.google.com>
Date:   Wed, 02 Jun 2021 01:18:44 -0700
From:   Stephen Boyd <sboyd@...nel.org>
To:     Peng Fan (OSS) <peng.fan@....nxp.com>, mturquette@...libre.com
Cc:     linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, kernel@...gutronix.de,
        Peng Fan <peng.fan@....com>,
        Jerome Brunet <jbrunet@...libre.com>
Subject: Re: [PATCH 0/3] clk: support regmap

Quoting Peng Fan (OSS) (2021-05-28 04:34:00)
> From: Peng Fan <peng.fan@....com>
> 
> To i.MX8ULP, a PCC register provides clk(mux, gate, divider) and peripheral
> reset functionality, so we need make sure the access to the PCC register
> be protected to avoid concurrent access from clk and reset subsystem.
> 
> So let's use regmap here.
> 
> The i.MX specific code will be posted if this patchset is ok for you.

We have a couple regmap clk drivers in the tree. Either combine the
different regmap clk drivers or duplicate it into the imx directory. I'd
prefer we combine them but last time I couldn't agree on the approach
when Jerome wanted to do it. Maybe now is the time to combine them all
into one common piece of code.

> 
> Peng Fan (3):
>   clk: mux: support regmap
>   clk: fractional-divider: support regmap
>   clk: gate: support regmap