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Signed-off-by: Yauhen Kharuzhy --- drivers/input/misc/drv260x.c | 44 +++++++++++++++++++++++------------- 1 file changed, 28 insertions(+), 16 deletions(-) diff --git a/drivers/input/misc/drv260x.c b/drivers/input/misc/drv260x.c index f7bfac6d3973..e82ede54c6f6 100644 --- a/drivers/input/misc/drv260x.c +++ b/drivers/input/misc/drv260x.c @@ -548,11 +548,17 @@ static int drv260x_probe(struct i2c_client *client) haptics->overdrive_voltage = error ? DRV260X_DEF_OD_CLAMP_VOLT : drv260x_calculate_voltage(voltage); - haptics->regulator = devm_regulator_get(dev, "vbat"); + haptics->regulator = devm_regulator_get_optional(dev, "vbat"); if (IS_ERR(haptics->regulator)) { - error = PTR_ERR(haptics->regulator); - dev_err(dev, "unable to get regulator, error: %d\n", error); - return error; + if (PTR_ERR(haptics->regulator) == -ENODEV) { + haptics->regulator = NULL; + dev_dbg(dev, "No vbat regulator found\n"); + } else { + error = PTR_ERR(haptics->regulator); + dev_err(dev, "unable to get regulator, error: %d\n", + error); + return error; + } } haptics->enable_gpio = devm_gpiod_get_optional(dev, @@ -626,13 +632,15 @@ static int drv260x_suspend(struct device *dev) gpiod_set_value(haptics->enable_gpio, 0); - error = regulator_disable(haptics->regulator); - if (error) { - dev_err(dev, "Failed to disable regulator\n"); - regmap_update_bits(haptics->regmap, - DRV260X_MODE, - DRV260X_STANDBY_MASK, 0); - return error; + if (haptics->regulator) { + error = regulator_disable(haptics->regulator); + if (error) { + dev_err(dev, "Failed to disable regulator\n"); + regmap_update_bits(haptics->regmap, + DRV260X_MODE, + DRV260X_STANDBY_MASK, 0); + return error; + } } } @@ -647,10 +655,12 @@ static int drv260x_resume(struct device *dev) guard(mutex)(&haptics->input_dev->mutex); if (input_device_enabled(haptics->input_dev)) { - error = regulator_enable(haptics->regulator); - if (error) { - dev_err(dev, "Failed to enable regulator\n"); - return error; + if (haptics->regulator) { + error = regulator_enable(haptics->regulator); + if (error) { + dev_err(dev, "Failed to enable regulator\n"); + return error; + } } error = regmap_update_bits(haptics->regmap, @@ -658,7 +668,9 @@ static int drv260x_resume(struct device *dev) DRV260X_STANDBY_MASK, 0); if (error) { dev_err(dev, "Failed to unset standby mode\n"); - regulator_disable(haptics->regulator); + if (haptics->regulator) + regulator_disable(haptics->regulator); + return error; } -- 2.51.0