From: Enric Balletbo i Serra <enric.balletbo@collabora.com>
To: Prashant Malani <pmalani@chromium.org>, linux-kernel@vger.kernel.org
Cc: heikki.krogerus@linux.intel.com, twawrzynczak@chromium.org,
Benson Leung <bleung@chromium.org>,
"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
<devicetree@vger.kernel.org>, Guenter Roeck <groeck@chromium.org>,
Rob Herring <robh+dt@kernel.org>
Subject: Re: [PATCH 2/2] platform/chrome: typec: Register Type C switches
Date: Thu, 30 Apr 2020 00:25:10 +0200 [thread overview]
Message-ID: <542cfe8f-04a5-8dbb-b498-90254bb4c54e@collabora.com> (raw)
In-Reply-To: <20200422222242.241699-2-pmalani@chromium.org>
Hi Prashant,
Following my previous comments ...
On 23/4/20 0:22, Prashant Malani wrote:
> Register Type C mux and switch handles, when provided via firmware
> bindings. These will allow the cros-ec-typec driver, and also alternate
> mode drivers to configure connected Muxes correctly, according to PD
> information retrieved from the Chrome OS EC.
>
> Signed-off-by: Prashant Malani <pmalani@chromium.org>
> ---
> drivers/platform/chrome/cros_ec_typec.c | 47 +++++++++++++++++++++++++
> 1 file changed, 47 insertions(+)
>
> diff --git a/drivers/platform/chrome/cros_ec_typec.c b/drivers/platform/chrome/cros_ec_typec.c
> index eda57db26f8d..324ead297c4d 100644
> --- a/drivers/platform/chrome/cros_ec_typec.c
> +++ b/drivers/platform/chrome/cros_ec_typec.c
> @@ -14,6 +14,8 @@
> #include <linux/platform_data/cros_usbpd_notify.h>
> #include <linux/platform_device.h>
> #include <linux/usb/typec.h>
> +#include <linux/usb/typec_mux.h>
> +#include <linux/usb/role.h>
>
> #define DRV_NAME "cros-ec-typec"
>
> @@ -25,6 +27,9 @@ struct cros_typec_port {
> struct typec_partner *partner;
> /* Port partner PD identity info. */
> struct usb_pd_identity p_identity;
> + struct typec_switch *ori_sw;
> + struct typec_mux *mux;
> + struct usb_role_switch *role_sw;
> };
>
> /* Platform-specific data for the Chrome OS EC Type C controller. */
> @@ -84,6 +89,40 @@ static int cros_typec_parse_port_props(struct typec_capability *cap,
> return 0;
> }
>
> +static int cros_typec_get_switch_handles(struct cros_typec_port *port,
> + struct fwnode_handle *fwnode,
> + struct device *dev)
> +{
> + port->mux = fwnode_typec_mux_get(fwnode, NULL);
> + if (IS_ERR(port->mux)) {
> + dev_info(dev, "Mux handle not found.\n");
Be quiet also here, dev_dbg at most, as you're ignoring the error anyway at the end.
> + goto mux_err;
> + }
> +
> + port->ori_sw = fwnode_typec_switch_get(fwnode);
> + if (IS_ERR(port->ori_sw)) {
> + dev_info(dev, "Orientation switch handle not found.\n");
Same here
> + goto ori_sw_err;
> + }
> +
> + port->role_sw = fwnode_usb_role_switch_get(fwnode);
> + if (IS_ERR(port->role_sw)) {
> + dev_info(dev, "USB role switch handle not found.\n");
And here.
> + goto role_sw_err;
> + }
> +
> + return 0;
> +
> +role_sw_err:
> + usb_role_switch_put(port->role_sw);
> +ori_sw_err:
> + typec_switch_put(port->ori_sw);
> +mux_err:
> + typec_mux_put(port->mux);
> +
> + return -ENODEV;
> +}
> +
> static void cros_unregister_ports(struct cros_typec_data *typec)
> {
> int i;
> @@ -91,6 +130,9 @@ static void cros_unregister_ports(struct cros_typec_data *typec)
> for (i = 0; i < typec->num_ports; i++) {
> if (!typec->ports[i])
> continue;
> + usb_role_switch_put(typec->ports[i]->role_sw);
> + typec_switch_put(typec->ports[i]->ori_sw);
> + typec_mux_put(typec->ports[i]->mux);
> typec_unregister_port(typec->ports[i]->port);
> }
> }
> @@ -153,6 +195,11 @@ static int cros_typec_init_ports(struct cros_typec_data *typec)
> ret = PTR_ERR(cros_port->port);
> goto unregister_ports;
> }
> +
> + ret = cros_typec_get_switch_handles(cros_port, fwnode, dev);
> + if (ret)
> + dev_info(dev, "No switch control for port %d\n",
> + port_num);
> }
>
> return 0;
>
next prev parent reply other threads:[~2020-04-29 22:25 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-22 22:22 [PATCH 1/2] dt-bindings: chrome: Add cros-ec-typec mux props Prashant Malani
2020-04-22 22:22 ` [PATCH 2/2] platform/chrome: typec: Register Type C switches Prashant Malani
2020-04-24 11:36 ` Heikki Krogerus
2020-04-29 22:22 ` Enric Balletbo i Serra
2020-04-29 23:02 ` Prashant Malani
2020-04-29 23:20 ` Enric Balletbo i Serra
2020-04-29 22:25 ` Enric Balletbo i Serra [this message]
2020-05-18 7:19 ` Prashant Malani
2020-04-23 2:59 ` [PATCH 1/2] dt-bindings: chrome: Add cros-ec-typec mux props Prashant Malani
2020-04-29 22:13 ` Enric Balletbo i Serra
2020-05-06 18:06 ` Benson Leung
2020-05-11 18:03 ` Prashant Malani
2020-05-11 19:28 ` Rob Herring
2020-05-11 20:46 ` Prashant Malani
2020-05-12 13:41 ` Heikki Krogerus
2020-05-14 18:16 ` Prashant Malani
2020-05-29 21:54 ` Rob Herring
2020-05-29 23:30 ` Prashant Malani
2020-06-09 20:30 ` Rob Herring
2020-06-09 23:57 ` Prashant Malani
2020-06-10 15:33 ` Heikki Krogerus
2020-06-10 16:53 ` Rob Herring
2020-06-10 17:48 ` Prashant Malani
2020-06-11 20:00 ` Rob Herring
2020-06-12 17:34 ` Prashant Malani
2020-06-15 13:22 ` Heikki Krogerus
2020-06-18 18:59 ` Prashant Malani
2020-06-29 20:41 ` Prashant Malani
2020-07-10 8:51 ` Prashant Malani
2020-07-17 18:04 ` Prashant Malani
2020-06-12 12:46 ` Heikki Krogerus
2020-06-12 14:20 ` Rob Herring
2020-06-15 10:24 ` Heikki Krogerus
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=542cfe8f-04a5-8dbb-b498-90254bb4c54e@collabora.com \
--to=enric.balletbo@collabora.com \
--cc=bleung@chromium.org \
--cc=devicetree@vger.kernel.org \
--cc=groeck@chromium.org \
--cc=heikki.krogerus@linux.intel.com \
--cc=linux-kernel@vger.kernel.org \
--cc=pmalani@chromium.org \
--cc=robh+dt@kernel.org \
--cc=twawrzynczak@chromium.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).