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NFC: trf7970a: Remove support for 'vin-voltage-override' DT property

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The 'vin-voltage-override' DT property is used by the trf7970a
driver to override the voltage presented to the driver by the
regulator subsystem.  This is unnecessary as properly specifying
the regulator chain via DT properties will accomplish the same
thing.  Therefore, remove support for 'vin-voltage-override'.

Signed-off-by: Mark Greer <[email protected]>
Signed-off-by: Samuel Ortiz <[email protected]>
This commit is contained in:
Mark Greer 2017-04-25 15:43:53 -07:00 • committed by Samuel Ortiz
commit a34631c272
2 changed files with 1 additions and 12 deletions
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11
drivers/nfc/trf7970a.c
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@ -2005,12 +2005,6 @@ static int trf7970a_get_autosuspend_delay(struct device_node *np)
return autosuspend_delay;
}
static int trf7970a_get_vin_voltage_override(struct device_node *np,
u32 *vin_uvolts)
{
return of_property_read_u32(np, "vin-voltage-override", vin_uvolts);
}
static int trf7970a_probe(struct spi_device *spi)
{
struct device_node *np = spi->dev.of_node;
@ -2108,10 +2102,7 @@ static int trf7970a_probe(struct spi_device *spi)
goto err_destroy_lock;
}
ret = trf7970a_get_vin_voltage_override(np, &uvolts);
if (ret)
uvolts = regulator_get_voltage(trf->regulator);
uvolts = regulator_get_voltage(trf->regulator);
if (uvolts > 4000000)
trf->chip_status_ctrl = TRF7970A_CHIP_STATUS_VRS5_3;