diff mbox series

[3/3] usb: typec: tcpm: Get Sink VDO from fwnode

Message ID 20210126084544.682641-4-kyletso@google.com (mailing list archive)
State Superseded
Headers show
Series common SVDM version and VDO from dt | expand

Commit Message

Kyle Tso Jan. 26, 2021, 8:45 a.m. UTC
Current design only allows TCPM to get the Sink VDO from TCPC configs.
Add an additional way from fwnode.

Signed-off-by: Kyle Tso <kyletso@google.com>
---
 drivers/usb/typec/tcpm/tcpm.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)
diff mbox series

Patch

diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c
index c14cf7842520..7b797d14d9db 100644
--- a/drivers/usb/typec/tcpm/tcpm.c
+++ b/drivers/usb/typec/tcpm/tcpm.c
@@ -5673,6 +5673,18 @@  static int tcpm_fw_get_caps(struct tcpm_port *port,
 			port->new_source_frs_current = frs_current;
 	}
 
+	ret = fwnode_property_read_u32_array(fwnode, "sink-vdos", NULL, 0);
+	if (ret <= 0 && ret != -EINVAL) {
+		return -EINVAL;
+	} else if (ret > 0) {
+		port->nr_snk_vdo = min(ret, VDO_MAX_OBJECTS);
+		ret = fwnode_property_read_u32_array(fwnode, "sink-vdos",
+						     port->snk_vdo,
+						     port->nr_snk_vdo);
+		if (ret < 0)
+			return -EINVAL;
+	}
+
 	return 0;
 }