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ucsi_ccg: ACPI based I2c client enumeration for AMD ASICs

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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>
Link: https://lore.kernel.org/r/20220526063305.3144352-3-Sanket.Goswami@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sanket Goswami 2022-05-26 12:03:05 +05:30 committed by Greg Kroah-Hartman
parent 5767f40053
commit 5fd6c4f0a6
1 changed files with 7 additions and 0 deletions
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7
drivers/usb/typec/ucsi/ucsi_ccg.c
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@ -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,