linux-kernel - Re: [PATCH v2 4/6] platform/x86: dell-laptop: import dell_micmute_led

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Date:   Tue, 17 Jan 2017 12:23:08 +0100
From:   Pali Rohár <pali.rohar@...il.com>
To:     Michał Kępień <kernel@...pniu.pl>
Cc:     Richard Purdie <rpurdie@...ys.net>,
        Jacek Anaszewski <jacek.anaszewski@...il.com>,
        Pavel Machek <pavel@....cz>,
        Darren Hart <dvhart@...radead.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        Anthony Wong <anthony.wong@...onical.com>,
        linux-leds@...r.kernel.org, platform-driver-x86@...r.kernel.org,
        alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 4/6] platform/x86: dell-laptop: import
 dell_micmute_led_set() from drivers/leds/dell-led.c

On Monday 16 January 2017 14:22:02 Michał Kępień wrote:
> To ensure all users of dell-smbios are in drivers/platform/x86, move the
> dell_micmute_led_set() method from drivers/leds/dell-led.c to
> drivers/platform/x86/dell-laptop.c.
> 
> Signed-off-by: Michał Kępień <kernel@...pniu.pl>
> ---
>  drivers/leds/dell-led.c            | 29 -----------------------------
>  drivers/platform/x86/dell-laptop.c | 28 ++++++++++++++++++++++++++++
>  sound/pci/hda/dell_wmi_helper.c    |  6 +++---
>  3 files changed, 31 insertions(+), 32 deletions(-)
> 
> diff --git a/drivers/leds/dell-led.c b/drivers/leds/dell-led.c
> index f9002d9bb757..c9cc36a7c890 100644
> --- a/drivers/leds/dell-led.c
> +++ b/drivers/leds/dell-led.c
> @@ -16,7 +16,6 @@
>  #include <linux/slab.h>
>  #include <linux/module.h>
>  #include <linux/dmi.h>
> -#include <linux/dell-led.h>
>  #include "../platform/x86/dell-smbios.h"
>  
>  MODULE_AUTHOR("Louis Davis/Jim Dailey");
> @@ -43,34 +42,6 @@ MODULE_ALIAS("wmi:" DELL_LED_BIOS_GUID);
>  #define CMD_LED_OFF	17
>  #define CMD_LED_BLINK	18
>  
> -#define GLOBAL_MIC_MUTE_ENABLE	0x364
> -#define GLOBAL_MIC_MUTE_DISABLE	0x365
> -
> -int dell_micmute_led_set(int state)
> -{
> -	struct calling_interface_buffer *buffer;
> -	struct calling_interface_token *token;
> -
> -	if (state == 0)
> -		token = dell_smbios_find_token(GLOBAL_MIC_MUTE_DISABLE);
> -	else if (state == 1)
> -		token = dell_smbios_find_token(GLOBAL_MIC_MUTE_ENABLE);
> -	else
> -		return -EINVAL;
> -
> -	if (!token)
> -		return -ENODEV;
> -
> -	buffer = dell_smbios_get_buffer();
> -	buffer->input[0] = token->location;
> -	buffer->input[1] = token->value;
> -	dell_smbios_send_request(1, 0);
> -	dell_smbios_release_buffer();
> -
> -	return state;
> -}
> -EXPORT_SYMBOL_GPL(dell_micmute_led_set);
> -
>  struct bios_args {
>  	unsigned char length;
>  	unsigned char result_code;
> diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c
> index 2c2f02b2e08a..277656c74343 100644
> --- a/drivers/platform/x86/dell-laptop.c
> +++ b/drivers/platform/x86/dell-laptop.c
> @@ -30,6 +30,7 @@
>  #include <linux/i8042.h>
>  #include <linux/debugfs.h>
>  #include <linux/seq_file.h>
> +#include <linux/dell-led.h>
>  #include <acpi/video.h>
>  #include "dell-rbtn.h"
>  #include "dell-smbios.h"
> @@ -42,6 +43,8 @@
>  #define KBD_LED_AUTO_50_TOKEN 0x02EB
>  #define KBD_LED_AUTO_75_TOKEN 0x02EC
>  #define KBD_LED_AUTO_100_TOKEN 0x02F6
> +#define GLOBAL_MIC_MUTE_ENABLE 0x364
> +#define GLOBAL_MIC_MUTE_DISABLE 0x365

For consistency with other constants, please add leading zero (0x0364) so
all constants will be fully 16bit.

Otherwise OK and you can add my Reviewed-by.

>  
>  struct quirk_entry {
>  	u8 touchpad_led;
> @@ -1970,6 +1973,31 @@ static void kbd_led_exit(void)
>  	led_classdev_unregister(&kbd_led);
>  }
>  
> +int dell_micmute_led_set(int state)
> +{
> +	struct calling_interface_buffer *buffer;
> +	struct calling_interface_token *token;
> +
> +	if (state == 0)
> +		token = dell_smbios_find_token(GLOBAL_MIC_MUTE_DISABLE);
> +	else if (state == 1)
> +		token = dell_smbios_find_token(GLOBAL_MIC_MUTE_ENABLE);
> +	else
> +		return -EINVAL;
> +
> +	if (!token)
> +		return -ENODEV;
> +
> +	buffer = dell_smbios_get_buffer();
> +	buffer->input[0] = token->location;
> +	buffer->input[1] = token->value;
> +	dell_smbios_send_request(1, 0);
> +	dell_smbios_release_buffer();
> +
> +	return state;
> +}
> +EXPORT_SYMBOL_GPL(dell_micmute_led_set);
> +
>  static int __init dell_init(void)
>  {
>  	struct calling_interface_buffer *buffer;
> diff --git a/sound/pci/hda/dell_wmi_helper.c b/sound/pci/hda/dell_wmi_helper.c
> index 516237ad6ef5..7efa7bd7acb2 100644
> --- a/sound/pci/hda/dell_wmi_helper.c
> +++ b/sound/pci/hda/dell_wmi_helper.c
> @@ -2,7 +2,7 @@
>   * to be included from codec driver
>   */
>  
> -#if IS_ENABLED(CONFIG_LEDS_DELL_NETBOOKS)
> +#if IS_ENABLED(CONFIG_DELL_LAPTOP)
>  #include <linux/dell-led.h>
>  
>  static int dell_led_value;
> @@ -67,10 +67,10 @@ static void alc_fixup_dell_wmi(struct hda_codec *codec,
>  	}
>  }
>  
> -#else /* CONFIG_LEDS_DELL_NETBOOKS */
> +#else /* CONFIG_DELL_LAPTOP */
>  static void alc_fixup_dell_wmi(struct hda_codec *codec,
>  			       const struct hda_fixup *fix, int action)
>  {
>  }
>  
> -#endif /* CONFIG_LEDS_DELL_NETBOOKS */
> +#endif /* CONFIG_DELL_LAPTOP */

-- 
Pali Rohár
pali.rohar@...il.com