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[1/2] ucsi_ccg: ACPI based I2c client enumeration for AMD ASICs

Message ID 20220510052437.3212186-2-Sanket.Goswami@amd.com (mailing list archive)
State Superseded
Headers show
Series Updates to ucsi_ccg driver | expand

Commit Message

Goswami, Sanket May 10, 2022, 5:24 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.

Signed-off-by: Sanket Goswami <Sanket.Goswami@amd.com>
---
 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 6db7c8ddd51c..7585599bacfd 100644
--- a/drivers/usb/typec/ucsi/ucsi_ccg.c
+++ b/drivers/usb/typec/ucsi/ucsi_ccg.c
@@ -1418,6 +1418,12 @@  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);
@@ -1459,6 +1465,7 @@  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,