User can define the typec port properties in tcpci node to setup
the port config.
Signed-off-by: Li Jun <jun.li@xxxxxxx>
---
drivers/staging/typec/tcpci.c | 63 +++++++++++++++++++++++++++++++++++++++++++
1 file changed, 63 insertions(+)
diff --git a/drivers/staging/typec/tcpci.c b/drivers/staging/typec/tcpci.c
index 24ad44f..ba4627f 100644
--- a/drivers/staging/typec/tcpci.c
+++ b/drivers/staging/typec/tcpci.c
@@ -466,6 +466,9 @@ static const struct regmap_config tcpci_regmap_config = {
static int tcpci_parse_config(struct tcpci *tcpci)
{
+ struct tcpc_config *tcfg;
+ int ret = -EINVAL;
+
tcpci->controls_vbus = true; /* XXX */
tcpci->tcpc.fwnode = device_get_named_child_node(tcpci->dev,
@@ -475,6 +478,66 @@ static int tcpci_parse_config(struct tcpci *tcpci)
return -EINVAL;
}
+ tcpci->tcpc.config = devm_kzalloc(tcpci->dev, sizeof(*tcfg),
+ GFP_KERNEL);
+ if (!tcpci->tcpc.config)
+ return -ENOMEM;
+
+ tcfg = tcpci->tcpc.config;
+
+ /* USB data support is optional */
+ ret = typec_get_data_type(tcpci->tcpc.fwnode);
+ if (ret < 0)
+ dev_dbg(tcpci->dev, "USB data is not supported.\n");
+ else
+ tcfg->data = ret;
+
+ /* Get port power type */
+ ret = typec_get_power_type(tcpci->tcpc.fwnode);
+ if (ret < 0) {
+ dev_err(tcpci->dev, "failed to get correct port type.\n");
+ return ret;
+ }
+ tcfg->type = ret;
+
+ if (tcfg->type == TYPEC_PORT_SNK)
+ goto sink;
+
+ tcfg->src_pdo = devm_kcalloc(tcpci->dev, PDO_MAX_OBJECTS,
+ sizeof(*tcfg->src_pdo), GFP_KERNEL);
+ if (!tcfg->src_pdo)
+ return -ENOMEM;
+
+ /* Get source capability */
+ ret = tcpm_get_src_config(tcpci->tcpc.fwnode, tcfg);
+ if (ret < 0) {
+ dev_err(tcpci->dev, "failed to get source pdo %d\n", ret);
+ return -EINVAL;
+ }
+
+ if (tcfg->type == TYPEC_PORT_SRC)
+ return 0;
+
+ /* Get the preferred power role for DRP */
+ ret = typec_get_preferred_role(tcpci->tcpc.fwnode);
+ if (ret < 0) {
+ dev_err(tcpci->dev, "failed to get correct preferred role.\n");
+ return ret;
+ }
+ tcfg->default_role = ret;
+sink:
+ tcfg->snk_pdo = devm_kcalloc(tcpci->dev, PDO_MAX_OBJECTS,
+ sizeof(*tcfg->snk_pdo), GFP_KERNEL);
+ if (!tcfg->snk_pdo)
+ return -ENOMEM;
+
+ /* Get power sink config */
+ ret = tcpm_get_snk_config(tcpci->tcpc.fwnode, tcfg);
+ if (ret < 0) {
+ dev_err(tcpci->dev, "failed to get sink configs %d\n", ret);
+ return -EINVAL;
+ }
+
return 0;
}
--
2.7.4
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