[PATCH 1/2] PM / suspend: Add platform_suspend_target_state()

[Pavel Machek]

Hi!

> Although this callback is optional and documented as such, it requires
> a platform_suspend_ops::begin callback to be implemented in order to
> provide an accurate suspend/resume state within the driver that
> implements this platform_suspend_ops.
> 
> An enumeration: platform_target_state is defined which currently defines
> the standard ACPI_S[1-4] states and can be extended with platform
> specific suspend states.
> 
> Signed-off-by: Florian Fainelli <f.fainelli at gmail.com>
> ---
>  include/linux/suspend.h | 25 +++++++++++++++++++++++++
>  kernel/power/suspend.c  | 15 +++++++++++++++
>  2 files changed, 40 insertions(+)
> 
> diff --git a/include/linux/suspend.h b/include/linux/suspend.h
> index 0b1cf32edfd7..6e6cc0778816 100644
> --- a/include/linux/suspend.h
> +++ b/include/linux/suspend.h
> @@ -50,6 +50,16 @@ enum suspend_stat_step {
>  	SUSPEND_RESUME
>  };
>  
> +enum platform_target_state {
> +	PLATFORM_STATE_UNKNOWN = -1,
> +	PLATFORM_STATE_WORKING = 0,
> +	PLATFORM_STATE_ACPI_S1,
> +	PLATFORM_STATE_ACPI_S2,
> +	PLATFORM_STATE_ACPI_S3,
> +	PLATFORM_STATE_ACPI_S4,
> +	/* Add platform specific states here */
> +};
> +

As I tried to explain in the email thread, having list with all the possible platform
states is no-go. We have about 1000 platforms supported...

NAK.
									Pavel