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>
Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-usb@vger.kernel.org,
Amelie Delaunay <amelie.delaunay@st.com>
Subject: [PATCH v10 10/15] usb: typec: tcpci: frs sourcing vbus callback
Date: Wed, 7 Oct 2020 23:15:51 -0700 [thread overview]
Message-ID: <20201008061556.1402293-11-badhri@google.com> (raw)
In-Reply-To: <20201008061556.1402293-1-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>
---
v9 is the first version of this patch in the series. Added to fix
occasional bug of vbus turning back on when disconnecting the FRS accessory
after disconnect. No changes since v9.
---
drivers/usb/typec/tcpm/tcpci.c | 9 +++++++++
drivers/usb/typec/tcpm/tcpci.h | 4 ++++
2 files changed, 13 insertions(+)
diff --git a/drivers/usb/typec/tcpm/tcpci.c b/drivers/usb/typec/tcpm/tcpci.c
index f9f0af64da5f..f91688e43991 100644
--- a/drivers/usb/typec/tcpm/tcpci.c
+++ b/drivers/usb/typec/tcpm/tcpci.c
@@ -284,6 +284,14 @@ static int tcpci_enable_frs(struct tcpc_dev *dev, bool enable)
return ret;
}
+static void tcpci_frs_sourcing_vbus(struct tcpc_dev *dev)
+{
+ struct tcpci *tcpci = tcpc_to_tcpci(dev);
+
+ if (tcpci->data->frs_sourcing_vbus)
+ tcpci->data->frs_sourcing_vbus(tcpci, tcpci->data);
+}
+
static int tcpci_set_bist_data(struct tcpc_dev *tcpc, bool enable)
{
struct tcpci *tcpci = tcpc_to_tcpci(tcpc);
@@ -628,6 +636,7 @@ struct tcpci *tcpci_register_port(struct device *dev, struct tcpci_data *data)
tcpci->tcpc.pd_transmit = tcpci_pd_transmit;
tcpci->tcpc.set_bist_data = tcpci_set_bist_data;
tcpci->tcpc.enable_frs = tcpci_enable_frs;
+ tcpci->tcpc.frs_sourcing_vbus = tcpci_frs_sourcing_vbus;
err = tcpci_parse_config(tcpci);
if (err < 0)
diff --git a/drivers/usb/typec/tcpm/tcpci.h b/drivers/usb/typec/tcpm/tcpci.h
index 5ef07a56d67a..b418fe11b527 100644
--- a/drivers/usb/typec/tcpm/tcpci.h
+++ b/drivers/usb/typec/tcpm/tcpci.h
@@ -143,6 +143,9 @@
/*
* @TX_BUF_BYTE_x_hidden
* optional; Set when TX_BUF_BYTE_x can only be accessed through I2C_WRITE_BYTE_COUNT.
+ * @frs_sourcing_vbus:
+ * Optional; Callback to perform chip specific operations when FRS
+ * is sourcing vbus.
*/
struct tcpci;
struct tcpci_data {
@@ -154,6 +157,7 @@ struct tcpci_data {
int (*start_drp_toggling)(struct tcpci *tcpci, struct tcpci_data *data,
enum typec_cc_status cc);
int (*set_vbus)(struct tcpci *tcpci, struct tcpci_data *data, bool source, bool sink);
+ void (*frs_sourcing_vbus)(struct tcpci *tcpci, struct tcpci_data *data);
};
struct tcpci *tcpci_register_port(struct device *dev, struct tcpci_data *data);
--
2.28.0.806.g8561365e88-goog
next prev parent reply other threads:[~2020-10-08 6:16 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-08 6:15 [PATCH v10 00/15] TCPM support for FRS and AutoDischarge Disconnect Badhri Jagan Sridharan
2020-10-08 6:15 ` [PATCH v10 01/15] usb: typec: tcpci: Add a getter method to retrieve tcpm_port reference Badhri Jagan Sridharan
2020-10-08 6:15 ` [PATCH v10 02/15] usb: typec: tcpci: Add set_vbus tcpci callback Badhri Jagan Sridharan
2020-10-08 6:15 ` [PATCH v10 03/15] dt-bindings: usb: Maxim type-c controller device tree binding document Badhri Jagan Sridharan
2020-10-08 6:15 ` [PATCH v10 04/15] usb: typec: tcpci_maxim: Chip level TCPC driver Badhri Jagan Sridharan
2020-10-08 6:15 ` [PATCH v10 05/15] dt-bindings: connector: Add property to set initial current cap for FRS Badhri Jagan Sridharan
2020-10-08 6:15 ` [PATCH v10 06/15] usb: typec: tcpm: Add support for Sink Fast Role SWAP(FRS) Badhri Jagan Sridharan
2020-10-08 6:15 ` [PATCH v10 07/15] usb: typec: tcpci: Implement callbacks for FRS Badhri Jagan Sridharan
2020-10-08 6:15 ` [PATCH v10 08/15] usb: typec: tcpci_maxim: Add support for Sink FRS Badhri Jagan Sridharan
2020-10-08 6:15 ` [PATCH v10 09/15] usb: typec: tcpm: frs sourcing vbus callback Badhri Jagan Sridharan
2020-10-19 13:40 ` Heikki Krogerus
2020-10-08 6:15 ` Badhri Jagan Sridharan [this message]
2020-10-19 13:41 ` [PATCH v10 10/15] usb: typec: tcpci: " Heikki Krogerus
2020-10-08 6:15 ` [PATCH v10 11/15] usb: typec: tcpci_max77759: Fix vbus stuck on upon diconnecting sink Badhri Jagan Sridharan
2020-10-19 13:44 ` Heikki Krogerus
2020-10-08 6:15 ` [PATCH v10 12/15] usb: typec: tcpm: Parse frs type-c current from device tree Badhri Jagan Sridharan
2020-10-08 6:15 ` [PATCH v10 13/15] usb: typec: tcpm: Implement enabling Auto Discharge disconnect support Badhri Jagan Sridharan
2020-10-19 13:48 ` Heikki Krogerus
2020-10-08 6:15 ` [PATCH v10 14/15] usb: typec: tcpci: Implement Auto discharge disconnect callbacks Badhri Jagan Sridharan
2020-10-19 13:49 ` Heikki Krogerus
2020-10-08 6:15 ` [PATCH v10 15/15] usb: typec: tcpci_maxim: Enable auto discharge disconnect Badhri Jagan Sridharan
2020-10-19 13:50 ` Heikki Krogerus
2020-10-08 7:46 ` [PATCH v10 00/15] TCPM support for FRS and AutoDischarge Disconnect Greg Kroah-Hartman
2020-10-08 17:54 ` Badhri Jagan Sridharan
2020-10-13 14:11 ` Rob Herring
2020-10-19 13:55 ` Heikki Krogerus
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