diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-07 09:42:16 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-07 09:42:16 -0700 |
commit | e611c0fe318c6d6827ee2bba660fbc23cf73f7dc (patch) | |
tree | 00854551e810b32cceab84157882eab147f2a98c /drivers/usb/typec/tps6598x.c | |
parent | Merge tag 'sh-for-5.8' of git://git.libc.org/linux-sh (diff) | |
parent | usb: dwc3: meson-g12a: fix USB2 PHY initialization on G12A and A1 SoCs (diff) | |
download | wireguard-linux-e611c0fe318c6d6827ee2bba660fbc23cf73f7dc.tar.xz wireguard-linux-e611c0fe318c6d6827ee2bba660fbc23cf73f7dc.zip |
Merge tag 'usb-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB/PHY driver updates from Greg KH:
"Here are the large set of USB and PHY driver updates for 5.8-rc1.
Nothing huge, just lots of little things:
- USB gadget fixes and additions all over the place
- new PHY drivers
- PHY driver fixes and updates
- XHCI driver updates
- musb driver updates
- more USB-serial driver ids added
- various USB quirks added
- thunderbolt minor updates and fixes
- typec updates and additions
All of these have been in linux-next for a while with no reported
issues"
* tag 'usb-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (245 commits)
usb: dwc3: meson-g12a: fix USB2 PHY initialization on G12A and A1 SoCs
usb: dwc3: meson-g12a: fix error path when fetching the reset line fails
Revert "dt-bindings: usb: qcom,dwc3: Convert USB DWC3 bindings"
Revert "dt-bindings: usb: qcom,dwc3: Add compatible for SC7180"
Revert "dt-bindings: usb: qcom,dwc3: Introduce interconnect properties for Qualcomm DWC3 driver"
USB: serial: ch341: fix lockup of devices with limited prescaler
USB: serial: ch341: add basis for quirk detection
CDC-ACM: heed quirk also in error handling
USB: serial: option: add Telit LE910C1-EUX compositions
usb: musb: Fix runtime PM imbalance on error
usb: musb: jz4740: Prevent lockup when CONFIG_SMP is set
usb: musb: mediatek: add reset FADDR to zero in reset interrupt handle
usb: musb: use true for 'use_dma'
usb: musb: start session in resume for host port
usb: musb: return -ESHUTDOWN in urb when three-strikes error happened
USB: serial: qcserial: add DW5816e QDL support
thunderbolt: Add trivial .shutdown
usb: dwc3: keystone: Turn on USB3 PHY before controller
dt-bindings: usb: ti,keystone-dwc3.yaml: Add USB3.0 PHY property
dt-bindings: usb: convert keystone-usb.txt to YAML
...
Diffstat (limited to 'drivers/usb/typec/tps6598x.c')
-rw-r--r-- | drivers/usb/typec/tps6598x.c | 64 |
1 files changed, 57 insertions, 7 deletions
diff --git a/drivers/usb/typec/tps6598x.c b/drivers/usb/typec/tps6598x.c index 0698addd1185..b7c9fe5caabe 100644 --- a/drivers/usb/typec/tps6598x.c +++ b/drivers/usb/typec/tps6598x.c @@ -12,6 +12,7 @@ #include <linux/regmap.h> #include <linux/interrupt.h> #include <linux/usb/typec.h> +#include <linux/usb/role.h> /* Register offsets */ #define TPS_REG_VID 0x00 @@ -94,6 +95,7 @@ struct tps6598x { struct typec_port *port; struct typec_partner *partner; struct usb_pd_identity partner_identity; + struct usb_role_switch *role_sw; }; /* @@ -190,6 +192,23 @@ static int tps6598x_read_partner_identity(struct tps6598x *tps) return 0; } +static void tps6598x_set_data_role(struct tps6598x *tps, + enum typec_data_role role, bool connected) +{ + enum usb_role role_val; + + if (role == TYPEC_HOST) + role_val = USB_ROLE_HOST; + else + role_val = USB_ROLE_DEVICE; + + if (!connected) + role_val = USB_ROLE_NONE; + + usb_role_switch_set_role(tps->role_sw, role_val); + typec_set_data_role(tps->port, role); +} + static int tps6598x_connect(struct tps6598x *tps, u32 status) { struct typec_partner_desc desc; @@ -220,7 +239,7 @@ static int tps6598x_connect(struct tps6598x *tps, u32 status) typec_set_pwr_opmode(tps->port, mode); typec_set_pwr_role(tps->port, TPS_STATUS_PORTROLE(status)); typec_set_vconn_role(tps->port, TPS_STATUS_VCONN(status)); - typec_set_data_role(tps->port, TPS_STATUS_DATAROLE(status)); + tps6598x_set_data_role(tps, TPS_STATUS_DATAROLE(status), true); tps->partner = typec_register_partner(tps->port, &desc); if (IS_ERR(tps->partner)) @@ -240,7 +259,7 @@ static void tps6598x_disconnect(struct tps6598x *tps, u32 status) typec_set_pwr_opmode(tps->port, TYPEC_PWR_MODE_USB); typec_set_pwr_role(tps->port, TPS_STATUS_PORTROLE(status)); typec_set_vconn_role(tps->port, TPS_STATUS_VCONN(status)); - typec_set_data_role(tps->port, TPS_STATUS_DATAROLE(status)); + tps6598x_set_data_role(tps, TPS_STATUS_DATAROLE(status), false); } static int tps6598x_exec_cmd(struct tps6598x *tps, const char *cmd, @@ -328,7 +347,7 @@ static int tps6598x_dr_set(struct typec_port *port, enum typec_data_role role) goto out_unlock; } - typec_set_data_role(tps->port, role); + tps6598x_set_data_role(tps, role, true); out_unlock: mutex_unlock(&tps->lock); @@ -452,6 +471,7 @@ static int tps6598x_probe(struct i2c_client *client) { struct typec_capability typec_cap = { }; struct tps6598x *tps; + struct fwnode_handle *fwnode; u32 status; u32 conf; u32 vid; @@ -495,11 +515,22 @@ static int tps6598x_probe(struct i2c_client *client) if (ret < 0) return ret; + fwnode = device_get_named_child_node(&client->dev, "connector"); + if (IS_ERR(fwnode)) + return PTR_ERR(fwnode); + + tps->role_sw = fwnode_usb_role_switch_get(fwnode); + if (IS_ERR(tps->role_sw)) { + ret = PTR_ERR(tps->role_sw); + 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: @@ -525,12 +556,16 @@ static int tps6598x_probe(struct i2c_client *client) typec_cap.data = TYPEC_PORT_DFP; break; default: - return -ENODEV; + ret = -ENODEV; + goto err_role_put; } tps->port = typec_register_port(&client->dev, &typec_cap); - if (IS_ERR(tps->port)) - return PTR_ERR(tps->port); + if (IS_ERR(tps->port)) { + ret = PTR_ERR(tps->port); + goto err_role_put; + } + fwnode_handle_put(fwnode); if (status & TPS_STATUS_PLUG_PRESENT) { ret = tps6598x_connect(tps, status); @@ -545,12 +580,19 @@ static int tps6598x_probe(struct i2c_client *client) if (ret) { tps6598x_disconnect(tps, 0); typec_unregister_port(tps->port); - return ret; + goto err_role_put; } i2c_set_clientdata(client, tps); return 0; + +err_role_put: + usb_role_switch_put(tps->role_sw); +err_fwnode_put: + fwnode_handle_put(fwnode); + + return ret; } static int tps6598x_remove(struct i2c_client *client) @@ -559,10 +601,17 @@ static int tps6598x_remove(struct i2c_client *client) tps6598x_disconnect(tps, 0); typec_unregister_port(tps->port); + usb_role_switch_put(tps->role_sw); return 0; } +static const struct of_device_id tps6598x_of_match[] = { + { .compatible = "ti,tps6598x", }, + {} +}; +MODULE_DEVICE_TABLE(of, tps6598x_of_match); + static const struct i2c_device_id tps6598x_id[] = { { "tps6598x" }, { } @@ -572,6 +621,7 @@ MODULE_DEVICE_TABLE(i2c, tps6598x_id); static struct i2c_driver tps6598x_i2c_driver = { .driver = { .name = "tps6598x", + .of_match_table = tps6598x_of_match, }, .probe_new = tps6598x_probe, .remove = tps6598x_remove, |