staging: iio: tsl2x7x: rename prox_config to als_prox_config

The configuration register on the device is represented with the
prox_config member on the tsl2x7x_settings structure. According to the
TSL2772 data sheet, this register can hold: 1) the proximity drive
level, 2) ALS/Proximity long wait, and 3) the ALS gain level. This
patch renames prox_config to als_prox_config since ALS settings can
be stored here as well.
Signed-off-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

drivers/staging/iio/light/tsl2x7x.c

@@ -64,7 +64,7 @@
 #define TSL2X7X_PRX_MAXTHRESHLO		0X0A
 #define TSL2X7X_PRX_MAXTHRESHHI		0X0B
 #define TSL2X7X_PERSISTENCE		0x0C
-#define TSL2X7X_PRX_CONFIG		0x0D
+#define TSL2X7X_ALS_PRX_CONFIG		0x0D
 #define TSL2X7X_PRX_COUNT		0x0E
 #define TSL2X7X_GAIN			0x0F
 #define TSL2X7X_NOTUSED			0x10
@@ -215,7 +215,7 @@ static const struct tsl2x7x_settings tsl2x7x_default_settings = {
 	.prox_time = 255, /* 2.73 ms */
 	.prox_gain = 0,
 	.wait_time = 255,
-	.prox_config = 0,
+	.als_prox_config = 0,
 	.als_gain_trim = 1000,
 	.als_cal_target = 150,
 	.als_persistence = 1,
@@ -602,7 +602,8 @@ static int tsl2x7x_chip_on(struct iio_dev *indio_dev)
 	/* Non calculated parameters */
 	chip->tsl2x7x_config[TSL2X7X_PRX_TIME] = chip->settings.prox_time;
 	chip->tsl2x7x_config[TSL2X7X_WAIT_TIME] = chip->settings.wait_time;
-	chip->tsl2x7x_config[TSL2X7X_PRX_CONFIG] = chip->settings.prox_config;
+	chip->tsl2x7x_config[TSL2X7X_ALS_PRX_CONFIG] =
+		chip->settings.als_prox_config;
 
 	chip->tsl2x7x_config[TSL2X7X_ALS_MINTHRESHLO] =
 		(chip->settings.als_thresh_low) & 0xFF;

drivers/staging/iio/light/tsl2x7x.h

@@ -60,7 +60,8 @@ struct tsl2x7x_lux {
  *                          increments. Total integration time is
  *                          (256 - prx_time) * 2.73.
  *  @prox_gain:             Index into the tsl2x7x_prx_gain array.
- *  @prox_config:           Prox configuration filters.
+ *  @als_prox_config:       The value of the ALS / Proximity configuration
+ *                          register.
  *  @als_cal_target:        Known external ALS reading for calibration.
  *  @als_persistence:       H/W Filters, Number of 'out of limits' ALS readings.
  *  @als_interrupt_en:      Enable/Disable ALS interrupts
@@ -85,7 +86,7 @@ struct tsl2x7x_settings {
 	int wait_time;
 	int prox_time;
 	int prox_gain;
-	int prox_config;
+	int als_prox_config;
 	int als_cal_target;
 	u8 als_persistence;
 	bool als_interrupt_en;