linux-kernel - Re: [PATCH v3 02/20] platform/x86: alienware-wmi: Move Lighting Control State

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Message-ID: <d2b4e5b3-1a17-4a89-abae-c6d67e0569c2@amd.com>
Date: Tue, 7 Jan 2025 15:30:20 -0600
From: Mario Limonciello <mario.limonciello@....com>
To: Kurt Borja <kuurtb@...il.com>, platform-driver-x86@...r.kernel.org
Cc: ilpo.jarvinen@...ux.intel.com, w_armin@....de, hdegoede@...hat.com,
 Dell.Client.Kernel@...l.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 02/20] platform/x86: alienware-wmi: Move Lighting
 Control State

On 1/5/2025 09:30, Kurt Borja wrote:
> Place Lighting Control State logic next to other attributes of the same
> sysfs group.
> 
> While at it, rename:
> 
> store_control_state()	-> lighting_control_state_store()
> show_control_state()	-> lighting_control_state_show()
> 
> Replace DEVICE_ATTR() with DEVICE_ATTR_RW() and do a general style
> cleanup.
> 
> Reviewed-by: Armin Wolf <W_Armin@....de>
> Signed-off-by: Kurt Borja <kuurtb@...il.com>
Reviewed-by: Mario Limonciello <mario.limonciello@....com>
> ---
>   drivers/platform/x86/dell/alienware-wmi.c | 74 ++++++++++++-----------
>   1 file changed, 39 insertions(+), 35 deletions(-)
> 
> diff --git a/drivers/platform/x86/dell/alienware-wmi.c b/drivers/platform/x86/dell/alienware-wmi.c
> index 7212d75396b9..ec64a8f22301 100644
> --- a/drivers/platform/x86/dell/alienware-wmi.c
> +++ b/drivers/platform/x86/dell/alienware-wmi.c
> @@ -545,6 +545,45 @@ static ssize_t zone_set(struct device *dev, struct device_attribute *attr,
>   	return ret ? ret : count;
>   }
>   
> +/*
> + * Lighting control state device attribute (Global)
> + */
> +static ssize_t lighting_control_state_show(struct device *dev,
> +					   struct device_attribute *attr,
> +					   char *buf)
> +{
> +	if (lighting_control_state == LEGACY_BOOTING)
> +		return sysfs_emit(buf, "[booting] running suspend\n");
> +	else if (lighting_control_state == LEGACY_SUSPEND)
> +		return sysfs_emit(buf, "booting running [suspend]\n");
> +
> +	return sysfs_emit(buf, "booting [running] suspend\n");
> +}
> +
> +static ssize_t lighting_control_state_store(struct device *dev,
> +					    struct device_attribute *attr,
> +					    const char *buf, size_t count)
> +{
> +	u8 val;
> +
> +	if (strcmp(buf, "booting\n") == 0)
> +		val = LEGACY_BOOTING;
> +	else if (strcmp(buf, "suspend\n") == 0)
> +		val = LEGACY_SUSPEND;
> +	else if (interface == LEGACY)
> +		val = LEGACY_RUNNING;
> +	else
> +		val = WMAX_RUNNING;
> +
> +	lighting_control_state = val;
> +	pr_debug("alienware-wmi: updated control state to %d\n",
> +		 lighting_control_state);
> +
> +	return count;
> +}
> +
> +static DEVICE_ATTR_RW(lighting_control_state);
> +
>   /*
>    * LED Brightness (Global)
>    */
> @@ -589,41 +628,6 @@ static struct led_classdev global_led = {
>   	.name = "alienware::global_brightness",
>   };
>   
> -/*
> - * Lighting control state device attribute (Global)
> - */
> -static ssize_t show_control_state(struct device *dev,
> -				  struct device_attribute *attr, char *buf)
> -{
> -	if (lighting_control_state == LEGACY_BOOTING)
> -		return sysfs_emit(buf, "[booting] running suspend\n");
> -	else if (lighting_control_state == LEGACY_SUSPEND)
> -		return sysfs_emit(buf, "booting running [suspend]\n");
> -	return sysfs_emit(buf, "booting [running] suspend\n");
> -}
> -
> -static ssize_t store_control_state(struct device *dev,
> -				   struct device_attribute *attr,
> -				   const char *buf, size_t count)
> -{
> -	long unsigned int val;
> -	if (strcmp(buf, "booting\n") == 0)
> -		val = LEGACY_BOOTING;
> -	else if (strcmp(buf, "suspend\n") == 0)
> -		val = LEGACY_SUSPEND;
> -	else if (interface == LEGACY)
> -		val = LEGACY_RUNNING;
> -	else
> -		val = WMAX_RUNNING;
> -	lighting_control_state = val;
> -	pr_debug("alienware-wmi: updated control state to %d\n",
> -		 lighting_control_state);
> -	return count;
> -}
> -
> -static DEVICE_ATTR(lighting_control_state, 0644, show_control_state,
> -		   store_control_state);
> -
>   static int alienware_zone_init(struct platform_device *dev)
>   {
>   	u8 zone;