linux-kernel - Re: [PATCH v2 05/13] drm/sun4i: hdmi: create a regmap for later use

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Message-ID: <20170926095647.o4p72dd6n3257n5m@flea>
Date:   Tue, 26 Sep 2017 11:56:47 +0200
From:   Maxime Ripard <maxime.ripard@...e-electrons.com>
To:     Chen-Yu Tsai <wens@...e.org>
Cc:     Mark Brown <broonie@...nel.org>, David Airlie <airlied@...ux.ie>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...eaurora.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        dri-devel@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-sunxi@...glegroups.com
Subject: Re: [PATCH v2 05/13] drm/sun4i: hdmi: create a regmap for later use

On Tue, Sep 26, 2017 at 06:59:11AM +0000, Chen-Yu Tsai wrote:
> The HDMI driver is written with readl/writel I/O to the registers.
> However, to support the A31 variant, which has a different layout
> for the DDC registers, it was recommended to use regfields to have
> a cleaner implementation. To use regfields, we need to create an
> underlying regmap.
> 
> This patch only adds the regmap. It does not convert the existing
> driver accesses to use regmap.
> 
> Signed-off-by: Chen-Yu Tsai <wens@...e.org>

Acked-by: Maxime Ripard <maxime.ripard@...e-electrons.com>

Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

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