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| author | Paolo Abeni <pabeni@redhat.com> | 2022-09-08 18:34:54 +0200 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2022-09-08 18:38:30 +0200 |
| commit | 9f8f1933dce555d3c246f447f54fca8de8889da9 (patch) | |
| tree | dc447d0174473de8385d47eb8aedc058a336e4a9 /drivers/iio/adc | |
| parent | net: sparx5: fix function return type to match actual type (diff) | |
| parent | Merge tag 'net-6.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netd... (diff) | |
| download | linux-9f8f1933dce555d3c246f447f54fca8de8889da9.tar.gz linux-9f8f1933dce555d3c246f447f54fca8de8889da9.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
drivers/net/ethernet/freescale/fec.h
7d650df99d52 ("net: fec: add pm_qos support on imx6q platform")
40c79ce13b03 ("net: fec: add stop mode support for imx8 platform")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'drivers/iio/adc')
| -rw-r--r-- | drivers/iio/adc/ad7292.c | 4 | ||||
| -rw-r--r-- | drivers/iio/adc/mcp3911.c | 28 |
2 files changed, 23 insertions, 9 deletions
diff --git a/drivers/iio/adc/ad7292.c b/drivers/iio/adc/ad7292.c index 92c68d467c50..a2f9fda25ff3 100644 --- a/drivers/iio/adc/ad7292.c +++ b/drivers/iio/adc/ad7292.c @@ -287,10 +287,8 @@ static int ad7292_probe(struct spi_device *spi) ret = devm_add_action_or_reset(&spi->dev, ad7292_regulator_disable, st); - if (ret) { - regulator_disable(st->reg); + if (ret) return ret; - } ret = regulator_get_voltage(st->reg); if (ret < 0) diff --git a/drivers/iio/adc/mcp3911.c b/drivers/iio/adc/mcp3911.c index 1cb4590fe412..890af7dca62d 100644 --- a/drivers/iio/adc/mcp3911.c +++ b/drivers/iio/adc/mcp3911.c @@ -40,8 +40,8 @@ #define MCP3911_CHANNEL(x) (MCP3911_REG_CHANNEL0 + x * 3) #define MCP3911_OFFCAL(x) (MCP3911_REG_OFFCAL_CH0 + x * 6) -/* Internal voltage reference in uV */ -#define MCP3911_INT_VREF_UV 1200000 +/* Internal voltage reference in mV */ +#define MCP3911_INT_VREF_MV 1200 #define MCP3911_REG_READ(reg, id) ((((reg) << 1) | ((id) << 5) | (1 << 0)) & 0xff) #define MCP3911_REG_WRITE(reg, id) ((((reg) << 1) | ((id) << 5) | (0 << 0)) & 0xff) @@ -113,6 +113,8 @@ static int mcp3911_read_raw(struct iio_dev *indio_dev, if (ret) goto out; + *val = sign_extend32(*val, 23); + ret = IIO_VAL_INT; break; @@ -137,11 +139,18 @@ static int mcp3911_read_raw(struct iio_dev *indio_dev, *val = ret / 1000; } else { - *val = MCP3911_INT_VREF_UV; + *val = MCP3911_INT_VREF_MV; } - *val2 = 24; - ret = IIO_VAL_FRACTIONAL_LOG2; + /* + * For 24bit Conversion + * Raw = ((Voltage)/(Vref) * 2^23 * Gain * 1.5 + * Voltage = Raw * (Vref)/(2^23 * Gain * 1.5) + */ + + /* val2 = (2^23 * 1.5) */ + *val2 = 12582912; + ret = IIO_VAL_FRACTIONAL; break; } @@ -208,7 +217,14 @@ static int mcp3911_config(struct mcp3911 *adc) u32 configreg; int ret; - device_property_read_u32(dev, "device-addr", &adc->dev_addr); + ret = device_property_read_u32(dev, "microchip,device-addr", &adc->dev_addr); + + /* + * Fallback to "device-addr" due to historical mismatch between + * dt-bindings and implementation + */ + if (ret) + device_property_read_u32(dev, "device-addr", &adc->dev_addr); if (adc->dev_addr > 3) { dev_err(&adc->spi->dev, "invalid device address (%i). Must be in range 0-3.\n", |