linux-kernel - Re: [PATCH 2/6] usb: typec: add typec_find_pwr

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Message-ID: <20200616105612.GL3213128@kuha.fi.intel.com>
Date:   Tue, 16 Jun 2020 13:56:12 +0300
From:   Heikki Krogerus <heikki.krogerus@...ux.intel.com>
To:     Amelie Delaunay <amelie.delaunay@...com>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        Russell King <linux@...linux.org.uk>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-usb@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org,
        Fabrice Gasnier <fabrice.gasnier@...com>
Subject: Re: [PATCH 2/6] usb: typec: add typec_find_pwr_opmode

On Mon, Jun 15, 2020 at 06:15:08PM +0200, Amelie Delaunay wrote:
> This patch adds a function that converts power operation mode string into
> power operation mode value.
> 
> It is useful to configure power operation mode through device tree
> property, as power capabilities may be linked to hardware design.
> 
> Signed-off-by: Amelie Delaunay <amelie.delaunay@...com>

Acked-by: Heikki Krogerus <heikki.krogerus@...ux.intel.com>

> ---
>  drivers/usb/typec/class.c | 15 +++++++++++++++
>  include/linux/usb/typec.h |  1 +
>  2 files changed, 16 insertions(+)
> 
> diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c
> index c9234748537a..59e1837ef85e 100644
> --- a/drivers/usb/typec/class.c
> +++ b/drivers/usb/typec/class.c
> @@ -1448,6 +1448,21 @@ void typec_set_pwr_opmode(struct typec_port *port,
>  }
>  EXPORT_SYMBOL_GPL(typec_set_pwr_opmode);
>  
> +/**
> + * typec_find_pwr_opmode - Get the typec power operation mode capability
> + * @name: power operation mode string
> + *
> + * This routine is used to find the typec_pwr_opmode by its string @name.
> + *
> + * Returns typec_pwr_opmode if success, otherwise negative error code.
> + */
> +int typec_find_pwr_opmode(const char *name)
> +{
> +	return match_string(typec_pwr_opmodes,
> +			    ARRAY_SIZE(typec_pwr_opmodes), name);
> +}
> +EXPORT_SYMBOL_GPL(typec_find_pwr_opmode);
> +
>  /**
>   * typec_find_orientation - Convert orientation string to enum typec_orientation
>   * @name: Orientation string
> diff --git a/include/linux/usb/typec.h b/include/linux/usb/typec.h
> index 5daa1c49761c..f7c63ee3d443 100644
> --- a/include/linux/usb/typec.h
> +++ b/include/linux/usb/typec.h
> @@ -254,6 +254,7 @@ int typec_set_mode(struct typec_port *port, int mode);
>  
>  void *typec_get_drvdata(struct typec_port *port);
>  
> +int typec_find_pwr_opmode(const char *name);
>  int typec_find_orientation(const char *name);
>  int typec_find_port_power_role(const char *name);
>  int typec_find_power_role(const char *name);
> -- 
> 2.17.1

thanks,

-- 
heikki