[rtc-linux] Re: [PATCH v4 1/2] mfd: cros_ec: Introduce RTC commands and events definitions.

[Brian Norris <briannorris@chromium.org>]

Hi,

On Fri, Nov 10, 2017 at 10:55:52PM +0100, Enric Balletbo i Serra wrote:
> From: Stephen Barber <smbarber@chromium.org>
> 
> The EC can function as a simple RT, this patch adds the RTC related
> definitions needed by the rtc-cros-ec driver.
> 
> Signed-off-by: Stephen Barber <smbarber@chromium.org>
> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
> Acked-by: Lee Jones <lee.jones@linaro.org>
> Acked-by: Benson Leung <bleung@chromium.org>

Reviewed-by: Brian Norris <briannorris@chromium.org>

I guess this is waiting to get merged by an RTC maintainer, since it's a
dependency for the RTC driver in patch 2? Alessandro or Alexandre, any
thoughts?

Brian

> ---
>  include/linux/mfd/cros_ec_commands.h | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/include/linux/mfd/cros_ec_commands.h b/include/linux/mfd/cros_ec_commands.h
> index 2b16e95..c6046a2 100644
> --- a/include/linux/mfd/cros_ec_commands.h
> +++ b/include/linux/mfd/cros_ec_commands.h
> @@ -291,6 +291,9 @@ enum host_event_code {
>  	/* EC desires to change state of host-controlled USB mux */
>  	EC_HOST_EVENT_USB_MUX = 28,
>  
> +	/* EC RTC event occurred */
> +	EC_HOST_EVENT_RTC = 26,
> +
>  	/*
>  	 * The high bit of the event mask is not used as a host event code.  If
>  	 * it reads back as set, then the entire event mask should be
> @@ -799,6 +802,8 @@ enum ec_feature_code {
>  	EC_FEATURE_USB_MUX = 23,
>  	/* Motion Sensor code has an internal software FIFO */
>  	EC_FEATURE_MOTION_SENSE_FIFO = 24,
> +	/* EC has RTC feature that can be controlled by host commands */
> +	EC_FEATURE_RTC = 27,
>  };
>  
>  #define EC_FEATURE_MASK_0(event_code) (1UL << (event_code % 32))
> @@ -1709,6 +1714,9 @@ struct ec_response_rtc {
>  #define EC_CMD_RTC_SET_VALUE 0x46
>  #define EC_CMD_RTC_SET_ALARM 0x47
>  
> +/* Pass as param to SET_ALARM to clear the current alarm */
> +#define EC_RTC_ALARM_CLEAR 0
> +
>  /*****************************************************************************/
>  /* Port80 log access */
>  

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