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| author | Francesco Dolcini <francesco.dolcini@toradex.com> | 2024-06-03 10:35:58 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-06-04 15:44:57 +0200 |
| commit | df1c5d55abc118f083854ff7e5048a16c98be714 (patch) | |
| tree | ad6caee5034c791f41cd2ab7e454024a784d9b13 | |
| parent | f12e04c39e45b38d60263c41775b0a76b3f8dd0e (diff) | |
| download | linux-df1c5d55abc118f083854ff7e5048a16c98be714.tar.gz linux-df1c5d55abc118f083854ff7e5048a16c98be714.tar.bz2 linux-df1c5d55abc118f083854ff7e5048a16c98be714.zip | |
usb: typec: mux: gpio-sbu: Make enable gpio optional
The enable gpio is not required when the SBU mux is used only for
orientation, make it optional.
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20240603083558.9629-3-francesco@dolcini.it
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/typec/mux/gpio-sbu-mux.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/usb/typec/mux/gpio-sbu-mux.c b/drivers/usb/typec/mux/gpio-sbu-mux.c index 374168482d36..8902102c05a8 100644 --- a/drivers/usb/typec/mux/gpio-sbu-mux.c +++ b/drivers/usb/typec/mux/gpio-sbu-mux.c @@ -66,6 +66,9 @@ static int gpio_sbu_mux_set(struct typec_mux_dev *mux, { struct gpio_sbu_mux *sbu_mux = typec_mux_get_drvdata(mux); + if (!sbu_mux->enable_gpio) + return -EOPNOTSUPP; + mutex_lock(&sbu_mux->lock); switch (state->mode) { @@ -102,7 +105,8 @@ static int gpio_sbu_mux_probe(struct platform_device *pdev) mutex_init(&sbu_mux->lock); - sbu_mux->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_LOW); + sbu_mux->enable_gpio = devm_gpiod_get_optional(dev, "enable", + GPIOD_OUT_LOW); if (IS_ERR(sbu_mux->enable_gpio)) return dev_err_probe(dev, PTR_ERR(sbu_mux->enable_gpio), "unable to acquire enable gpio\n"); |