RE: [PATCH v6 05/15] usb: typec: add API to get typec basic port power and data config

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Hi Heikki,
> -----Original Message-----
> From: Heikki Krogerus [mailto:heikki.krogerus@xxxxxxxxxxxxxxx]
> Sent: 2018年6月11日 19:09
> To: Jun Li <jun.li@xxxxxxx>
> Cc: robh+dt@xxxxxxxxxx; gregkh@xxxxxxxxxxxxxxxxxxx; linux@xxxxxxxxxxxx;
> cw00.choi@xxxxxxxxxxx; a.hajda@xxxxxxxxxxx; shufan_lee@xxxxxxxxxxx;
> Peter Chen <peter.chen@xxxxxxx>; garsilva@xxxxxxxxxxxxxx;
> gsomlo@xxxxxxxxx; linux-usb@xxxxxxxxxxxxxxx; devicetree@xxxxxxxxxxxxxxx;
> dl-linux-imx <linux-imx@xxxxxxx>
> Subject: Re: [PATCH v6 05/15] usb: typec: add API to get typec basic port power
> and data config
> 
> Hi Jun,
> 
> On Mon, May 28, 2018 at 10:52:37AM +0800, Li Jun wrote:
> > This patch adds 3 APIs to get the typec port power and data type, and
> > preferred power role by its name string.
> >
> > Signed-off-by: Li Jun <jun.li@xxxxxxx>
> > ---
> >  drivers/usb/typec/class.c | 50
> > +++++++++++++++++++++++++++++++++++++++++++++++
> >  include/linux/usb/typec.h |  3 +++
> >  2 files changed, 53 insertions(+)
> >
> > diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c
> > index 53df10d..4c7d18c 100644
> > --- a/drivers/usb/typec/class.c
> > +++ b/drivers/usb/typec/class.c
> > @@ -802,6 +802,12 @@ static const char * const typec_port_types[] = {
> >  	[TYPEC_PORT_DRP] = "dual",
> >  };
> >
> > +static const char * const typec_data_caps[] = {
> > +	[TYPEC_PORT_DFP] = "host",
> > +	[TYPEC_PORT_UFP] = "device",
> > +	[TYPEC_PORT_DRD] = "dual",
> > +};
> 
> Since I guess you need to fix this patch in any case, could you rename that to
> "typec_port_data_roles".

OK.

> 
> And while at it, how about using this as an opportunity to rename
> typec_port_types to typec_port_power_roles?
> 
> So this just a suggestion, no need to actually change it :-) :

Also OK for me, I can rename it by this chance.

> 
> diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c index
> abbd33939109..97f7eb0e9879 100644
> --- a/drivers/usb/typec/class.c
> +++ b/drivers/usb/typec/class.c
> @@ -918,12 +918,18 @@ static const char * const typec_data_roles[] = {
>         [TYPEC_HOST]    = "host",
>  };
> 
> -static const char * const typec_port_types[] = {
> +static const char * const typec_port_power_roles[] = {
>         [TYPEC_PORT_SRC] = "source",
>         [TYPEC_PORT_SNK] = "sink",
>         [TYPEC_PORT_DRP] = "dual",
>  };
> 
> +static const char * const typec_port_data_roles[] = {
> +       [TYPEC_PORT_DFP] = "host",
> +       [TYPEC_PORT_UFP] = "device",
> +       [TYPEC_PORT_DRD] = "dual",
> +};
> +
>  static const char * const typec_port_types_drp[] = {
>         [TYPEC_PORT_SRC] = "dual [source] sink",
>         [TYPEC_PORT_SNK] = "dual source [sink]", @@ -1054,7 +1060,7 @@
> static ssize_t power_role_store(struct device *dev,
>         mutex_lock(&port->port_type_lock);
>         if (port->port_type != TYPEC_PORT_DRP) {
>                 dev_dbg(dev, "port type fixed at \"%s\"",
> -                            typec_port_types[port->port_type]);
> +                       typec_port_power_roles[port->port_type]);
>                 ret = -EOPNOTSUPP;
>                 goto unlock_and_ret;
>         }
> @@ -1095,7 +1101,7 @@ port_type_store(struct device *dev, struct
> device_attribute *attr,
>                 return -EOPNOTSUPP;
>         }
> 
> -       ret = sysfs_match_string(typec_port_types, buf);
> +       ret = sysfs_match_string(typec_port_power_roles, buf);
>         if (ret < 0)
>                 return ret;
> 
> @@ -1129,7 +1135,7 @@ port_type_show(struct device *dev, struct
> device_attribute *attr,
>                 return sprintf(buf, "%s\n",
>                                typec_port_types_drp[port->port_type]);
> 
> -       return sprintf(buf, "[%s]\n", typec_port_types[port->cap->type]);
> +       return sprintf(buf, "[%s]\n",
> + typec_port_power_roles[port->cap->type]);
>  }
>  static DEVICE_ATTR_RW(port_type);
> 
> 
> Thanks,
> 
> --
> heikki
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