diff options
| author | Michael Grzeschik <m.grzeschik@pengutronix.de> | 2025-04-04 02:17:20 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-04-11 17:08:32 +0300 |
| commit | a592e0673a20c57468d5296b57130a45cb0ff487 (patch) | |
| tree | 6fbff5300b91f679119cea6e49c567d8b6130e2d /drivers/usb/typec | |
| parent | 8a50da849151e7e12b43c1d8fe7ad302223aef6b (diff) | |
| download | linux-a592e0673a20c57468d5296b57130a45cb0ff487.tar.xz | |
usb: typec: tcpci: add regulator support
The tcpci chip vbus pin is possibly driven by an regulator. This patch
is adding support to enable an optional vdd regulator before probing.
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20250404-ml-topic-tcpci-v1-1-4442c7d0ee1e@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/typec')
| -rw-r--r-- | drivers/usb/typec/tcpm/tcpci.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/usb/typec/tcpm/tcpci.c b/drivers/usb/typec/tcpm/tcpci.c index 19ab6647af70..a56e31b20c21 100644 --- a/drivers/usb/typec/tcpm/tcpci.c +++ b/drivers/usb/typec/tcpm/tcpci.c @@ -17,6 +17,7 @@ #include <linux/usb/tcpci.h> #include <linux/usb/tcpm.h> #include <linux/usb/typec.h> +#include <linux/regulator/consumer.h> #define PD_RETRY_COUNT_DEFAULT 3 #define PD_RETRY_COUNT_3_0_OR_HIGHER 2 @@ -905,6 +906,10 @@ static int tcpci_probe(struct i2c_client *client) int err; u16 val = 0; + err = devm_regulator_get_enable_optional(&client->dev, "vdd"); + if (err && err != -ENODEV) + return dev_err_probe(&client->dev, err, "Failed to get regulator\n"); + chip = devm_kzalloc(&client->dev, sizeof(*chip), GFP_KERNEL); if (!chip) return -ENOMEM; |