[PATCH v9 09/14] USB: typec: tps6598x: Refactor tps6598x port registration

Abdel Alkuor
2023-10-01T08:16:03Z

tps6598x and cd321x use TPS_REG_SYSTEM_CONF to get dr/pr roles
where other similar devices don't have this register such as tps25750.

Move tps6598x port registration to its own function

Signed-off-by: Abdel Alkuor <abdelalkuor@geotab.com>
---
Changes in v9:
- No changes
Changes in v8:
- No changes
Changes in v7:
- Add driver name to commit subject
Changes in v6:
- No changes
Changes in v5:
- Incorporating tps25750 into tps6598x driver

drivers/usb/typec/tipd/core.c | 99 +++++++++++++++++++----------------
1 file changed, 54 insertions(+), 45 deletions(-)

diff --git a/drivers/usb/typec/tipd/core.c b/drivers/usb/typec/tipd/core.c
index 52dc1cc16bed..0195eabd96bf 100644
--- a/drivers/usb/typec/tipd/core.c
+++ b/drivers/usb/typec/tipd/core.c
@@ -1032,14 +1032,64 @@ static int tps25750_apply_patch(struct tps6598x *tps)
return 0;
};

+static int
+tps6598x_register_port(struct tps6598x *tps, struct fwnode_handle *fwnode)
+{
+ int ret;
+ u32 conf;
+ struct typec_capability typec_cap = { };
+
+ ret = tps6598x_read32(tps, TPS_REG_SYSTEM_CONF, &conf);
+ if (ret)
+ return ret;
+
+ typec_cap.revision = USB_TYPEC_REV_1_2;
+ typec_cap.pd_revision = 0x200;
+ typec_cap.prefer_role = TYPEC_NO_PREFERRED_ROLE;
+ typec_cap.driver_data = tps;
+ typec_cap.ops = &tps6598x_ops;
+ typec_cap.fwnode = fwnode;
+
+ switch (TPS_SYSCONF_PORTINFO(conf)) {
+ case TPS_PORTINFO_SINK_ACCESSORY:
+ case TPS_PORTINFO_SINK:
+ typec_cap.type = TYPEC_PORT_SNK;
+ typec_cap.data = TYPEC_PORT_UFP;
+ break;
+ case TPS_PORTINFO_DRP_UFP_DRD:
+ case TPS_PORTINFO_DRP_DFP_DRD:
+ typec_cap.type = TYPEC_PORT_DRP;
+ typec_cap.data = TYPEC_PORT_DRD;
+ break;
+ case TPS_PORTINFO_DRP_UFP:
+ typec_cap.type = TYPEC_PORT_DRP;
+ typec_cap.data = TYPEC_PORT_UFP;
+ break;
+ case TPS_PORTINFO_DRP_DFP:
+ typec_cap.type = TYPEC_PORT_DRP;
+ typec_cap.data = TYPEC_PORT_DFP;
+ break;
+ case TPS_PORTINFO_SOURCE:
+ typec_cap.type = TYPEC_PORT_SRC;
+ typec_cap.data = TYPEC_PORT_DFP;
+ break;
+ default:
+ return -ENODEV;
+ }
+
+ tps->port = typec_register_port(tps->dev, &typec_cap);
+ if (IS_ERR(tps->port))
+ return PTR_ERR(tps->port);
+
+ return 0;
+}
+
static int tps6598x_probe(struct i2c_client *client)
{
struct device_node *np = client->dev.of_node;
- struct typec_capability typec_cap = { };
struct tps6598x *tps;
struct fwnode_handle *fwnode;
u32 status;
- u32 conf;
u32 vid;
int ret;
u64 mask1;
@@ -1112,10 +1162,6 @@ static int tps6598x_probe(struct i2c_client *client)
goto err_clear_mask;
trace_tps6598x_status(status);

- ret = tps6598x_read32(tps, TPS_REG_SYSTEM_CONF, &conf);
- if (ret < 0)
- goto err_clear_mask;
-
/*
* This fwnode has a "compatible" property, but is never populated as a
* struct device. Instead we simply parse it to read the properties.
@@ -1133,50 +1179,13 @@ static int tps6598x_probe(struct i2c_client *client)
goto err_fwnode_put;
}

- typec_cap.revision = USB_TYPEC_REV_1_2;
- typec_cap.pd_revision = 0x200;
- typec_cap.prefer_role = TYPEC_NO_PREFERRED_ROLE;
- typec_cap.driver_data = tps;
- typec_cap.ops = &tps6598x_ops;
- typec_cap.fwnode = fwnode;
-
- switch (TPS_SYSCONF_PORTINFO(conf)) {
- case TPS_PORTINFO_SINK_ACCESSORY:
- case TPS_PORTINFO_SINK:
- typec_cap.type = TYPEC_PORT_SNK;
- typec_cap.data = TYPEC_PORT_UFP;
- break;
- case TPS_PORTINFO_DRP_UFP_DRD:
- case TPS_PORTINFO_DRP_DFP_DRD:
- typec_cap.type = TYPEC_PORT_DRP;
- typec_cap.data = TYPEC_PORT_DRD;
- break;
- case TPS_PORTINFO_DRP_UFP:
- typec_cap.type = TYPEC_PORT_DRP;
- typec_cap.data = TYPEC_PORT_UFP;
- break;
- case TPS_PORTINFO_DRP_DFP:
- typec_cap.type = TYPEC_PORT_DRP;
- typec_cap.data = TYPEC_PORT_DFP;
- break;
- case TPS_PORTINFO_SOURCE:
- typec_cap.type = TYPEC_PORT_SRC;
- typec_cap.data = TYPEC_PORT_DFP;
- break;
- default:
- ret = -ENODEV;
- goto err_role_put;
- }
-
ret = devm_tps6598_psy_register(tps);
if (ret)
goto err_role_put;

- tps->port = typec_register_port(&client->dev, &typec_cap);
- if (IS_ERR(tps->port)) {
- ret = PTR_ERR(tps->port);
+ ret = tps6598x_register_port(tps, fwnode);
+ if (ret)
goto err_role_put;
- }

if (status & TPS_STATUS_PLUG_PRESENT) {
ret = tps6598x_read16(tps, TPS_REG_POWER_STATUS, &tps->pwr_status);
--
2.34.1