linux-kernel - Re: [PATCH v2 3/3] pinctrl: sunxi: Make sunxi_pconf_group_set use sunxi_pconf

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Date:   Fri, 11 Nov 2016 09:38:52 +0100
From:   Maxime Ripard <maxime.ripard@...e-electrons.com>
To:     Chen-Yu Tsai <wens@...e.org>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        linux-gpio@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-sunxi@...glegroups.com
Subject: Re: [PATCH v2 3/3] pinctrl: sunxi: Make sunxi_pconf_group_set use
 sunxi_pconf_reg helper

On Fri, Nov 11, 2016 at 10:44:55AM +0800, Chen-Yu Tsai wrote:
> The sunxi_pconf_reg helper introduced in the last patch gives us the
> chance to rework sunxi_pconf_group_set to have it match the structure
> of sunxi_pconf_(group_)get and make it easier to understand.
> 
> For each config to set, it:
> 
>     1. checks if the parameter is supported.
>     2. checks if the argument is within limits.
>     3. converts argument to the register value.
>     4. writes to the register with spinlock held.
> 
> As a result the function now blocks unsupported config parameters,
> instead of silently ignoring them.
> 
> Signed-off-by: Chen-Yu Tsai <wens@...e.org>

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

But I think the config variable removal should be part of patch 2, as
discussed there.

Thanks!
Maxime

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

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