Thread (24 messages) 24 messages, 4 authors, 2021-02-12

Re: [PATCH v6 7/7] usb: typec: tcpm: Get Sink VDO from fwnode

From: Guenter Roeck <linux@roeck-us.net>
Date: 2021-02-12 04:22:35
Also in: linux-usb, lkml

On Fri, Feb 05, 2021 at 11:34:15AM +0800, Kyle Tso wrote:
Commit a079973f462a ("usb: typec: tcpm: Remove tcpc_config
configuration mechanism") removed the tcpc_config which includes the
Sink VDO and it is not yet added back with fwnode. Add it now.

Signed-off-by: Kyle Tso <redacted>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
quoted hunk ↗ jump to hunk
---
Changes since v5:
- no change

 drivers/usb/typec/tcpm/tcpm.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c
index b45cd191a8a4..be0b6469dd3d 100644
--- a/drivers/usb/typec/tcpm/tcpm.c
+++ b/drivers/usb/typec/tcpm/tcpm.c
@@ -5722,6 +5722,20 @@ static int tcpm_fw_get_caps(struct tcpm_port *port,
 			port->new_source_frs_current = frs_current;
 	}
 
+	/* sink-vdos is optional */
+	ret = fwnode_property_count_u32(fwnode, "sink-vdos");
+	if (ret < 0)
+		ret = 0;
+
+	port->nr_snk_vdo = min(ret, VDO_MAX_OBJECTS);
+	if (port->nr_snk_vdo) {
+		ret = fwnode_property_read_u32_array(fwnode, "sink-vdos",
+						     port->snk_vdo,
+						     port->nr_snk_vdo);
+		if (ret < 0)
+			return ret;
+	}
+
 	return 0;
 }
 
-- 
2.30.0.365.g02bc693789-goog
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