linux-kernel - Re: [PATCH v5] platform/x86: inspur-platform-profile: Add platform profile support

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Message-ID: <a6dc9391-26c9-cb25-44ed-3aab4d528f0@linux.intel.com>
Date:   Fri, 27 Oct 2023 16:22:42 +0300 (EEST)
From:   Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
To:     Ai Chao <aichao@...inos.cn>
cc:     Hans de Goede <hdegoede@...hat.com>, markgross@...nel.org,
        LKML <linux-kernel@...r.kernel.org>,
        platform-driver-x86@...r.kernel.org
Subject: Re: [PATCH v5] platform/x86: inspur-platform-profile: Add platform
 profile support

On Fri, 20 Oct 2023, Ai Chao wrote:

> Add support for Inspur platforms to used the platform profile feature.
> 
> This will allow users to determine and control the platform modes
> between low-power, balanced and performance modes.
> 
> Signed-off-by: Ai Chao <aichao@...inos.cn>
> ---
> 
> v5: Rename inspur-wmi to inspur_platform_profile
> v4: Add select ACPI_PLATFORM_PROFILE
> v3: Remove input device, using the platform profile interface
> v2: Remove Event GUID, remove inspur_wmi_notify and inspur_wmi_notify.
> 
>  drivers/platform/x86/Kconfig                  |  11 +
>  drivers/platform/x86/Makefile                 |   3 +
>  .../platform/x86/inspur_platform_profile.c    | 216 ++++++++++++++++++
>  3 files changed, 230 insertions(+)
>  create mode 100644 drivers/platform/x86/inspur_platform_profile.c
> 
> diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
> index 2a1070543391..7e69fdaccdd5 100644
> --- a/drivers/platform/x86/Kconfig
> +++ b/drivers/platform/x86/Kconfig
> @@ -988,6 +988,17 @@ config TOUCHSCREEN_DMI
>  	  the OS-image for the device. This option supplies the missing info.
>  	  Enable this for x86 tablets with Silead or Chipone touchscreens.
>  
> +config INSPUR_PLATFORM_PROFILE
> +	tristate "Inspur WMI platform profile driver"
> +	depends on ACPI_WMI
> +	select ACPI_PLATFORM_PROFILE
> +	help
> +	This will allow users to determine and control the platform modes
> +	between low-power, balanced and performance modes.
> +
> +	To compile this driver as a module, choose M here: the module
> +	will be called inspur-platform-profile.
> +
>  source "drivers/platform/x86/x86-android-tablets/Kconfig"
>  
>  config FW_ATTR_CLASS
> diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile
> index b457de5abf7d..c7a18e95ad8c 100644
> --- a/drivers/platform/x86/Makefile
> +++ b/drivers/platform/x86/Makefile
> @@ -98,6 +98,9 @@ obj-$(CONFIG_TOSHIBA_WMI)	+= toshiba-wmi.o
>  # before toshiba_acpi initializes
>  obj-$(CONFIG_ACPI_TOSHIBA)	+= toshiba_acpi.o
>  
> +# Inspur
> +obj-$(CONFIG_INSPUR_PLATFORM_PROFILE)	+= inspur_platform_profile.o
> +
>  # Laptop drivers
>  obj-$(CONFIG_ACPI_CMPC)		+= classmate-laptop.o
>  obj-$(CONFIG_COMPAL_LAPTOP)	+= compal-laptop.o
> diff --git a/drivers/platform/x86/inspur_platform_profile.c b/drivers/platform/x86/inspur_platform_profile.c
> new file mode 100644
> index 000000000000..6e376cb6d47e
> --- /dev/null
> +++ b/drivers/platform/x86/inspur_platform_profile.c

> +/**
> + * Power Mode:
> + *           0x0: Balance Mode
> + *           0x1: Performance Mode
> + *           0x2: Power Saver Mode
> + */
> +enum inspur_tmp_profile {
> +	INSPUR_TMP_PROFILE_BALANCE	= 0,
> +	INSPUR_TMP_PROFILE_PERFORMANCE	= 1,
> +	INSPUR_TMP_PROFILE_POWERSAVE	= 2,
> +};

> +/**
> + * Set Power Mode to EC RAM. If Power Mode value greater than 0x3,
> + * return error
> + * Method ID: 0x3
> + * Arg: 4 Bytes
> + * Byte [0]: Power Mode:
> + *         0x0: Balance Mode
> + *         0x1: Performance Mode
> + *         0x2: Power Saver Mode
> + * Return Value: 4 Bytes
> + * Byte [0]: Return Code
> + *         0x0: No Error
> + *         0x1: Error
> + */
> +static int inspur_platform_profile_set(struct platform_profile_handler *pprof,
> +				       enum platform_profile_option profile)
> +{

> +/**
> + * Get Power Mode from EC RAM, If Power Mode value greater than 0x3,
> + * return error
> + * Method ID: 0x2
> + * Return Value: 4 Bytes
> + * Byte [0]: Return Code
> + *         0x0: No Error
> + *         0x1: Error
> + * Byte [1]: Power Mode
> + *         0x0: Balance Mode
> + *         0x1: Performance Mode
> + *         0x2: Power Saver Mode
> + */
> +static int inspur_platform_profile_get(struct platform_profile_handler *pprof,
> +				       enum platform_profile_option *profile)
> +{

Applied to review-ilpo.

I had to remove the kerneldoc markers as the comments above are not 
consistent with what kerneldoc expects and it triggered a warning.

-- 
 i.