linux-kernel - Re: [PATCH v4 02/15] clk: Allow drivers to pass in a regmap

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Date:	Mon, 13 Jan 2014 18:25:17 -0800
From:	Stephen Boyd <sboyd@...eaurora.org>
To:	Mike Turquette <mturquette@...aro.org>
CC:	linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	Saravana Kannan <skannan@...eaurora.org>,
	Mark Brown <broonie@...nel.org>
Subject: Re: [PATCH v4 02/15] clk: Allow drivers to pass in a regmap

On 01/09/14 23:05, Stephen Boyd wrote:
> It feels another key point is being missed though. The regmap
> pointer and the enable_reg/enable_mask is embedded in clk_hw to
> allow the same code to be used by different types of surrounding
> structs. Each struct: clk_pll, clk_rcg, and clk_branch in this
> series use the regmap interface to enable/disable the clock and
> they can easily do so by passing something that's always
> available from struct clk_hw (be it via a wrapper struct, private
> data member, or addition of new fields to clk_hw). If the regmap
> members move into each specific type of clock we can't just pass
> a single pointer to the enable/disable regmap functions anymore.
> This is the reason why I suggested a driver data pointer or
> container struct so that everything regmap related is contained
> within one type.
>

Any thoughts?

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