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[v3,2/2] ucsi_ccg: ACPI based I2c client enumeration for AMD ASICs

Message ID 20220526063305.3144352-3-Sanket.Goswami@amd.com
State New
Headers show
Series Updates to ucsi_ccg driver | expand

Commit Message

Goswami, Sanket May 26, 2022, 6:33 a.m. UTC 
Some of the AMD platforms have Cypress CCGX PD controller connected
to system I2C i.e designware I2C controller. Added support to enumerate
the CCGX client by adding ACPI ID to the firmware.

Suggested-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Sanket Goswami <Sanket.Goswami@amd.com>
---
Changes in v3:
- Swap the patch 1 and 2 to achieve required functionality.

Changes in v2:
- No change.

 drivers/usb/typec/ucsi/ucsi_ccg.c | 7 +++++++
 1 file changed, 7 insertions(+)
diff mbox series

Patch

diff --git a/drivers/usb/typec/ucsi/ucsi_ccg.c b/drivers/usb/typec/ucsi/ucsi_ccg.c
index 0707a7156299..5c0bf48be766 100644
--- a/drivers/usb/typec/ucsi/ucsi_ccg.c
+++ b/drivers/usb/typec/ucsi/ucsi_ccg.c
@@ -1423,6 +1423,12 @@  static const struct i2c_device_id ucsi_ccg_device_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, ucsi_ccg_device_id);
 
+static const struct acpi_device_id amd_i2c_ucsi_match[] = {
+	{"AMDI0042"},
+	{}
+};
+MODULE_DEVICE_TABLE(acpi, amd_i2c_ucsi_match);
+
 static int ucsi_ccg_resume(struct device *dev)
 {
 	struct i2c_client *client = to_i2c_client(dev);
@@ -1464,6 +1470,7 @@  static struct i2c_driver ucsi_ccg_driver = {
 		.name = "ucsi_ccg",
 		.pm = &ucsi_ccg_pm,
 		.dev_groups = ucsi_ccg_groups,
+		.acpi_match_table = amd_i2c_ucsi_match,
 	},
 	.probe = ucsi_ccg_probe,
 	.remove = ucsi_ccg_remove,