Commit 5fd6c4f0 authored by Sanket Goswami's avatar Sanket Goswami Committed by Greg Kroah-Hartman
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ucsi_ccg: ACPI based I2c client enumeration for AMD ASICs 



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: default avatarHeikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: default avatarSanket Goswami <Sanket.Goswami@amd.com>
Link: https://lore.kernel.org/r/20220526063305.3144352-3-Sanket.Goswami@amd.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 5767f400

drivers/usb/typec/ucsi/ucsi_ccg.c

+7 −0
Original line number Diff line number Diff line
@@ -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,