staging: pi433: fix CamelCase for lnaGain enum

Fixes checkpatch warning:

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

drivers/staging/pi433/Documentation/pi433.txt

@@ -196,7 +196,7 @@ rf params:
 		sets the electrical adoption of the antenna
 		fifty_ohm	- for antennas with an impedance of 50Ohm
 		two_hundred_ohm	- for antennas with an impedance of 200Ohm
-	lnaGain
+	lna_gain
 		sets the gain of the low noise amp
 		automatic	- lna gain is determined by an agc
 		max		- lna gain is set to maximum

drivers/staging/pi433/pi433_if.h

@@ -117,7 +117,7 @@ struct pi433_rx_cfg {
 	__u8			rssi_threshold;
 	enum threshold_decrement threshold_decrement;
 	enum antenna_impedance	antenna_impedance;
-	enum lnaGain		lna_gain;
+	enum lna_gain		lna_gain;
 	enum mantisse		bw_mantisse;	/* normal: 0x50 */
 	__u8			bw_exponent;	/* during AFC: 0x8b */
 	enum dagc		dagc;

drivers/staging/pi433/rf69.c

@@ -399,9 +399,9 @@ int rf69_set_antenna_impedance(struct spi_device *spi, enum antenna_impedance an
 	}
 }
 
-int rf69_set_lna_gain(struct spi_device *spi, enum lnaGain lnaGain)
+int rf69_set_lna_gain(struct spi_device *spi, enum lna_gain lna_gain)
 {
-	switch (lnaGain) {
+	switch (lna_gain) {
 	case automatic:
 		return rf69_read_mod_write(spi, REG_LNA, MASK_LNA_GAIN, LNA_GAIN_AUTO);
 	case max:

drivers/staging/pi433/rf69.h

@@ -37,7 +37,7 @@ 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 pa_ramp pa_ramp);
 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_lna_gain(struct spi_device *spi, enum lna_gain lna_gain);
 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);
 int rf69_set_ook_threshold_dec(struct spi_device *spi, enum threshold_decrement threshold_decrement);

drivers/staging/pi433/rf69_enum.h

@@ -65,7 +65,7 @@ enum antenna_impedance {
 	two_hundred_ohm
 };
 
-enum lnaGain {
+enum lna_gain {
 	automatic,
 	max,
 	max_minus_6,