diff options
| author | Per-Daniel Olsson <perdo@axis.com> | 2022-04-29 09:22:08 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2022-05-03 13:47:36 +0100 |
| commit | 62139f52b7e588d565aa9df81ea0a0548a68b823 (patch) | |
| tree | 92cd5765921e4690c3c1ac7c90710528ca0e9196 /drivers/regulator/pca9450-regulator.c | |
| parent | e721b161399b30e085faa2f4b930ebeb15df36a7 (diff) | |
regulator: pca9450: Make I2C Level Translator configurable
Make the I2C Level Translator included in PCA9450 configurable from
devicetree. The reset state is off. By setting nxp,i2c-lt-enable, the
I2C Level Translator will be enabled while in STANDBY or RUN state.
Signed-off-by: Per-Daniel Olsson <perdo@axis.com>
Signed-off-by: Rickard x Andersson <rickaran@axis.com>
Link: https://lore.kernel.org/r/20220429072211.24957-2-rickaran@axis.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/regulator/pca9450-regulator.c')
| -rw-r--r-- | drivers/regulator/pca9450-regulator.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/regulator/pca9450-regulator.c b/drivers/regulator/pca9450-regulator.c index 64e5f5f0cc84..87b4e6e29ba1 100644 --- a/drivers/regulator/pca9450-regulator.c +++ b/drivers/regulator/pca9450-regulator.c @@ -810,6 +810,17 @@ static int pca9450_i2c_probe(struct i2c_client *i2c, return ret; } + if (of_property_read_bool(i2c->dev.of_node, "nxp,i2c-lt-enable")) { + /* Enable I2C Level Translator */ + ret = regmap_update_bits(pca9450->regmap, PCA9450_REG_CONFIG2, + I2C_LT_MASK, I2C_LT_ON_STANDBY_RUN); + if (ret) { + dev_err(&i2c->dev, + "Failed to enable I2C level translator\n"); + return ret; + } + } + /* * The driver uses the LDO5CTRL_H register to control the LDO5 regulator. * This is only valid if the SD_VSEL input of the PMIC is high. Let's |