staging: pi433: fix CamelCase for antennaImpedance

Fixes checkpatch warnings:

  CHECK: Avoid CamelCase: <antennaImpedance>
Signed-off-by: Valentin Vidic <Valentin.Vidic@CARNet.hr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/pi433/Documentation/pi433.txt

@@ -192,7 +192,7 @@ rf params:
 		step_4_0db	- increase in 4 db steps
 		step_5_0db	- increase in 5 db steps
 		step_6_0db	- increase in 6 db steps
-	antennaImpedance
+	antenna_impedance
 		sets the electrical adoption of the antenna
 		fiftyOhm	- for antennas with an impedance of 50Ohm
 		twohundretOhm	- for antennas with an impedance of 200Ohm

drivers/staging/pi433/pi433_if.h

@@ -116,7 +116,7 @@ struct pi433_rx_cfg {
 
 	__u8			rssi_threshold;
 	enum thresholdDecrement	threshold_decrement;
-	enum antennaImpedance	antenna_impedance;
+	enum antenna_impedance	antenna_impedance;
 	enum lnaGain		lna_gain;
 	enum mantisse		bw_mantisse;	/* normal: 0x50 */
 	__u8			bw_exponent;	/* during AFC: 0x8b */

drivers/staging/pi433/rf69.c

@@ -386,9 +386,9 @@ int rf69_set_pa_ramp(struct spi_device *spi, enum paRamp paRamp)
 	}
 }
 
-int rf69_set_antenna_impedance(struct spi_device *spi, enum antennaImpedance antennaImpedance)
+int rf69_set_antenna_impedance(struct spi_device *spi, enum antenna_impedance antenna_impedance)
 {
-	switch (antennaImpedance) {
+	switch (antenna_impedance) {
 	case fiftyOhm:
 		return rf69_clear_bit(spi, REG_LNA, MASK_LNA_ZIN);
 	case twohundretOhm:

drivers/staging/pi433/rf69.h

@@ -36,7 +36,7 @@ int rf69_enable_amplifier(struct spi_device *spi, u8 amplifier_mask);
 int rf69_disable_amplifier(struct spi_device *spi, u8 amplifier_mask);
 int rf69_set_output_power_level(struct spi_device *spi, u8 power_level);
 int rf69_set_pa_ramp(struct spi_device *spi, enum paRamp paRamp);
-int rf69_set_antenna_impedance(struct spi_device *spi, enum antennaImpedance antennaImpedance);
+int rf69_set_antenna_impedance(struct spi_device *spi, enum antenna_impedance antenna_impedance);
 int rf69_set_lna_gain(struct spi_device *spi, enum lnaGain lnaGain);
 int rf69_set_bandwidth(struct spi_device *spi, enum mantisse mantisse, u8 exponent);
 int rf69_set_bandwidth_during_afc(struct spi_device *spi, enum mantisse mantisse, u8 exponent);

drivers/staging/pi433/rf69_enum.h

@@ -60,7 +60,7 @@ enum paRamp {
 	ramp10
 };
 
-enum antennaImpedance {
+enum antenna_impedance {
 	fiftyOhm,
 	twohundretOhm
 };