linux-kernel - Re: [PATCH v3 3/3] ALSA: hda: add support for Huawei WMI micmute LED

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Message-ID: <20181119235713.GB7367@amd>
Date:   Tue, 20 Nov 2018 00:57:13 +0100
From:   Pavel Machek <pavel@....cz>
To:     Ayman Bagabas <ayman.bagabas@...il.com>
Cc:     Darren Hart <dvhart@...radead.org>,
        Andy Shevchenko <andy@...radead.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Kailang Yang <kailang@...ltek.com>,
        Hui Wang <hui.wang@...onical.com>,
        linux-kernel@...r.kernel.org, platform-driver-x86@...r.kernel.org,
        alsa-devel@...a-project.org
Subject: Re: [PATCH v3 3/3] ALSA: hda: add support for Huawei WMI micmute LED

Hi!

> Some of Huawei laptops come with a LED in the micmute key. This patch
> enables and disable this LED accordingly.
> 
> Signed-off-by: Ayman Bagabas <ayman.bagabas@...il.com>

NAK.

We already have a LED subsystem. 

> +#if IS_ENABLED(CONFIG_HUAWEI_LAPTOP)
> +#include <linux/platform_data/x86/huawei_wmi.h>
> +
> +static int (*huawei_wmi_micmute_led_set_func)(bool);
> +

So we should not be doing this.

Thinkpad ACPI module exports its LEDs there, for example.

Thanks,

									Pavel

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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