linux-kernel - RE: [PATCH 03/13] remoteproc: Add new RPROC

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Date:   Thu, 15 Oct 2020 01:31:19 +0000
From:   Peng Fan <peng.fan@....com>
To:     Mathieu Poirier <mathieu.poirier@...aro.org>,
        "bjorn.andersson@...aro.org" <bjorn.andersson@...aro.org>,
        "ohad@...ery.com" <ohad@...ery.com>
CC:     "linux-remoteproc@...r.kernel.org" <linux-remoteproc@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH 03/13] remoteproc: Add new RPROC_ATTACHED state

> Subject: [PATCH 03/13] remoteproc: Add new RPROC_ATTACHED state
> 
> Add a new RPROC_ATTACHED state to take into account scenarios where the
> remoteproc core needs to attach to a remote processor that is booted by
> another entity.
> 
> Signed-off-by: Mathieu Poirier <mathieu.poirier@...aro.org>
> ---
>  drivers/remoteproc/remoteproc_sysfs.c | 1 +
>  include/linux/remoteproc.h            | 7 +++++--
>  2 files changed, 6 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/remoteproc/remoteproc_sysfs.c
> b/drivers/remoteproc/remoteproc_sysfs.c
> index eea514cec50e..2d575e6c9eb8 100644
> --- a/drivers/remoteproc/remoteproc_sysfs.c
> +++ b/drivers/remoteproc/remoteproc_sysfs.c
> @@ -84,6 +84,7 @@ static const char * const rproc_state_string[] = {
>  	[RPROC_RUNNING]		= "running",
>  	[RPROC_CRASHED]		= "crashed",
>  	[RPROC_DELETED]		= "deleted",
> +	[RPROC_ATTACHED]	= "attached",
>  	[RPROC_DETACHED]	= "detached",
>  	[RPROC_LAST]		= "invalid",
>  };
> diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h index
> 2fa68bf5aa4f..4e107615121a 100644
> --- a/include/linux/remoteproc.h
> +++ b/include/linux/remoteproc.h
> @@ -403,6 +403,8 @@ struct rproc_ops {
>   * @RPROC_RUNNING:	device is up and running
>   * @RPROC_CRASHED:	device has crashed; need to start recovery
>   * @RPROC_DELETED:	device is deleted
> + * @RPROC_ATTACHED:	device has been booted by another entity and
> the core
> + *			has attached to it
>   * @RPROC_DETACHED:	device has been booted by another entity and
> waiting
>   *			for the core to attach to it
>   * @RPROC_LAST:		just keep this one at the end
> @@ -419,8 +421,9 @@ enum rproc_state {
>  	RPROC_RUNNING	= 2,
>  	RPROC_CRASHED	= 3,
>  	RPROC_DELETED	= 4,
> -	RPROC_DETACHED	= 5,
> -	RPROC_LAST	= 6,
> +	RPROC_ATTACHED	= 5,
> +	RPROC_DETACHED	= 6,
> +	RPROC_LAST	= 7,
>  };
> 
>  /**
> --

Reviewed-by: Peng Fan <peng.fan@....com>