From: Andy Shevchenko <andy.shevchenko@gmail.com>
To: koba.ko@canonical.com, Mario Limonciello <mario.limonciello@dell.com>
Cc: "Matthew Garrett" <mjg59@srcf.ucam.org>,
"Pali Rohár" <pali.rohar@gmail.com>,
"Darren Hart" <dvhart@infradead.org>,
"Andy Shevchenko" <andy@infradead.org>,
"Platform Driver" <platform-driver-x86@vger.kernel.org>,
"Linux Kernel Mailing List" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] platform/x86: dell-laptop: don't register platform::micmute if the related tokens don't exist.
Date: Thu, 7 May 2020 13:41:42 +0300 [thread overview]
Message-ID: <CAHp75VeDFpjwZoNWj6SwvnHE70o4x+U9GnK-tbrFpK6fkBN7MA@mail.gmail.com> (raw)
In-Reply-To: <20200507094242.7523-1-koba.ko@canonical.com>
+Cc: Mario
On Thu, May 7, 2020 at 12:42 PM <koba.ko@canonical.com> wrote:
>
> From: Koba Ko <koba.ko@canonical.com>
>
> Error messge is issued,
> "platform::micmute: Setting an LED's brightness failed (-19)",
> Even the device isn't presented.
>
> Get the related tokens of SMBIOS, GLOBAL_MIC_MUTE_DISABLE/ENABLE.
> If one of two tokens doesn't exist, don't register platform::micmute.
>
What the exact platform you are experiencing that on?
> Signed-off-by: Koba Ko <koba.ko@canonical.com>
> ---
> drivers/platform/x86/dell-laptop.c | 11 +++++++----
> 1 file changed, 7 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c
> index 1e46022fb2c5..afc1ded83e56 100644
> --- a/drivers/platform/x86/dell-laptop.c
> +++ b/drivers/platform/x86/dell-laptop.c
> @@ -2208,10 +2208,13 @@ static int __init dell_init(void)
>
> dell_laptop_register_notifier(&dell_laptop_notifier);
>
> - micmute_led_cdev.brightness = ledtrig_audio_get(LED_AUDIO_MICMUTE);
> - ret = led_classdev_register(&platform_device->dev, &micmute_led_cdev);
> - if (ret < 0)
> - goto fail_led;
> + if (dell_smbios_find_token(GLOBAL_MIC_MUTE_DISABLE) &&
> + dell_smbios_find_token(GLOBAL_MIC_MUTE_ENABLE)) {
> + micmute_led_cdev.brightness = ledtrig_audio_get(LED_AUDIO_MICMUTE);
> + ret = led_classdev_register(&platform_device->dev, &micmute_led_cdev);
> + if (ret < 0)
> + goto fail_led;
> + }
>
> if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
> return 0;
> --
> 2.17.1
>
--
With Best Regards,
Andy Shevchenko
next prev parent reply other threads:[~2020-05-07 10:41 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-07 9:42 [PATCH] platform/x86: dell-laptop: don't register platform::micmute if the related tokens don't exist koba.ko
2020-05-07 10:41 ` Andy Shevchenko [this message]
[not found] ` <CAJB-X+U9vOzKNt3Z-BzZrEJhyU0Gd_5rVM=yqfy3TZTWNn2_YA@mail.gmail.com>
2020-05-07 20:26 ` Mario.Limonciello
[not found] ` <CAJB-X+UTzknY63mL2iY5mXNDYm9ohm2ZeQBdPDUBZ+MSkcUAFQ@mail.gmail.com>
2020-05-08 17:25 ` Mario.Limonciello
2020-05-07 11:13 ` Pali Rohár
[not found] ` <CAJB-X+WKqrWuKK0=BWtj7f8AovsMzbCO-QaLi2ZaP0_Q6321WQ@mail.gmail.com>
2020-05-07 11:45 ` Pali Rohár
2020-05-07 12:54 ` Andy Shevchenko
2020-05-07 12:57 ` Pali Rohár
-- strict thread matches above, loose matches on Subject: below --
2020-05-11 1:16 koba.ko
2020-05-07 12:27 koba.ko
[not found] ` <CAJB-X+XwshJp1ud32kXxRGkE+8WdM+=e1MSewmOUvgERk2yGMw@mail.gmail.com>
2020-05-07 12:58 ` Andy Shevchenko
2020-05-07 20:11 ` Mario.Limonciello
2020-05-07 8:49 koba.ko
2020-05-07 9:02 ` Andy Shevchenko
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