From: Badhri Jagan Sridharan <badhri@google.com>
To: Guenter Roeck <linux@roeck-us.net>,
Heikki Krogerus <heikki.krogerus@linux.intel.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Rob Herring <robh+dt@kernel.org>,
Lee Jones <lee.jones@linaro.org>, Mark Brown <broonie@kernel.org>,
Maxime Ripard <mripard@kernel.org>,
Alexandre Belloni <alexandre.belloni@bootlin.com>,
Thierry Reding <treding@nvidia.com>,
Prashant Malani <pmalani@chromium.org>,
Badhri Jagan Sridharan <badhri@google.com>,
Dan Carpenter <dan.carpenter@oracle.com>
Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-usb@vger.kernel.org
Subject: [PATCH v12 04/10] usb: typec: tcpm: frs sourcing vbus callback
Date: Wed, 28 Oct 2020 23:31:32 -0700 [thread overview]
Message-ID: <20201029063138.1429760-5-badhri@google.com> (raw)
In-Reply-To: <20201029063138.1429760-1-badhri@google.com>
During FRS hardware autonomously starts to source vbus. Provide
callback to perform chip specific operations.
Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
---
Introduced in v9.
Changes since v10:
Added Reviewed-by: Heikki Krogerus
Changes since v11:
none
---
drivers/usb/typec/tcpm/tcpm.c | 9 +++++++++
include/linux/usb/tcpm.h | 4 ++++
2 files changed, 13 insertions(+)
diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c
index 561480b67bce..0123d2f14c96 100644
--- a/drivers/usb/typec/tcpm/tcpm.c
+++ b/drivers/usb/typec/tcpm/tcpm.c
@@ -4091,7 +4091,16 @@ static void _tcpm_pd_vbus_on(struct tcpm_port *port)
case SRC_TRY_DEBOUNCE:
/* Do nothing, waiting for sink detection */
break;
+ case FR_SWAP_SEND:
+ case FR_SWAP_SEND_TIMEOUT:
+ case FR_SWAP_SNK_SRC_TRANSITION_TO_OFF:
+ case FR_SWAP_SNK_SRC_SOURCE_VBUS_APPLIED:
+ if (port->tcpc->frs_sourcing_vbus)
+ port->tcpc->frs_sourcing_vbus(port->tcpc);
+ break;
case FR_SWAP_SNK_SRC_NEW_SINK_READY:
+ if (port->tcpc->frs_sourcing_vbus)
+ port->tcpc->frs_sourcing_vbus(port->tcpc);
tcpm_set_state(port, FR_SWAP_SNK_SRC_SOURCE_VBUS_APPLIED, 0);
break;
diff --git a/include/linux/usb/tcpm.h b/include/linux/usb/tcpm.h
index 09762d26fa0c..7303f518ba49 100644
--- a/include/linux/usb/tcpm.h
+++ b/include/linux/usb/tcpm.h
@@ -83,6 +83,9 @@ enum tcpm_transmit_type {
* Optional; Called to enable/disable PD 3.0 fast role swap.
* Enabling frs is accessory dependent as not all PD3.0
* accessories support fast role swap.
+ * @frs_sourcing_vbus:
+ * Optional; Called to notify that vbus is now being sourced.
+ * Low level drivers can perform chip specific operations, if any.
*/
struct tcpc_dev {
struct fwnode_handle *fwnode;
@@ -109,6 +112,7 @@ struct tcpc_dev {
const struct pd_message *msg);
int (*set_bist_data)(struct tcpc_dev *dev, bool on);
int (*enable_frs)(struct tcpc_dev *dev, bool enable);
+ void (*frs_sourcing_vbus)(struct tcpc_dev *dev);
};
struct tcpm_port;
--
2.29.1.341.ge80a0c044ae-goog
next prev parent reply other threads:[~2020-10-29 7:42 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-29 6:31 [PATCH v12 00/10] TCPM support for FRS and AutoDischarge Disconnect Badhri Jagan Sridharan
2020-10-29 6:31 ` [PATCH v12 01/10] dt-bindings: usb: Maxim type-c controller device tree binding document Badhri Jagan Sridharan
2020-10-29 15:33 ` Rob Herring
2020-10-29 20:01 ` Badhri Jagan Sridharan
2020-11-06 10:45 ` Greg Kroah-Hartman
2020-10-29 6:31 ` [PATCH v12 02/10] usb: typec: tcpci_maxim: Fix the compatible string Badhri Jagan Sridharan
2020-10-29 6:31 ` [PATCH v12 03/10] usb: typec: tcpm: Refactor logic for new-source-frs-typec-current Badhri Jagan Sridharan
2020-10-29 6:31 ` Badhri Jagan Sridharan [this message]
2020-10-29 6:31 ` [PATCH v12 05/10] usb: typec: tcpci: frs sourcing vbus callback Badhri Jagan Sridharan
2020-10-29 6:31 ` [PATCH v12 06/10] usb: typec: tcpci_maxim: Fix vbus stuck on upon diconnecting sink Badhri Jagan Sridharan
2020-10-29 6:31 ` [PATCH v12 07/10] usb: typec: tcpm: Implement enabling Auto Discharge disconnect support Badhri Jagan Sridharan
2020-10-29 6:31 ` [PATCH v12 08/10] usb: typec: tcpci: Implement Auto discharge disconnect callbacks Badhri Jagan Sridharan
2020-10-29 6:31 ` [PATCH v12 09/10] usb: typec: tcpci_maxim: Enable auto discharge disconnect Badhri Jagan Sridharan
2020-10-29 6:31 ` [PATCH v12 10/10] usb: typec: tcpci_maxim: Fix uninitialized return variable Badhri Jagan Sridharan
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