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

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Date:   Tue, 20 Nov 2018 08:07:09 +0100
From:   Takashi Iwai <tiwai@...e.de>
To:     "Pavel Machek" <pavel@....cz>
Cc:     "Ayman Bagabas" <ayman.bagabas@...il.com>,
        <alsa-devel@...a-project.org>, "Hui Wang" <hui.wang@...onical.com>,
        "Andy Shevchenko" <andy@...radead.org>,
        "Darren Hart" <dvhart@...radead.org>,
        "Jaroslav Kysela" <perex@...ex.cz>,
        "Kailang Yang" <kailang@...ltek.com>,
        <linux-kernel@...r.kernel.org>,
        <platform-driver-x86@...r.kernel.org>
Subject: Re: [PATCH v3 3/3] ALSA: hda: add support for Huawei WMI micmute LED

On Tue, 20 Nov 2018 00:57:13 +0100,
Pavel Machek wrote:
> 
> > +#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.

Both thinkpad_acpi and dell_laptop provide the interface to HD-audio
in the very same way like this.


thanks,

Takashi