[PATCH v4 04/26] staging: iio: tsl2583: change current chip state from a tristate to a bool

[Brian Masney]

The current chip state is represented as a tristate (working, suspended,
and unknown). The unknown state was not used. This patch changes the
chip state so that it is now represented as a single boolean value
(suspended).

Signed-off-by: Brian Masney <masn...@onstation.org>
---
 drivers/staging/iio/light/tsl2583.c | 20 +++++++-------------
 1 file changed, 7 insertions(+), 13 deletions(-)

diff --git a/drivers/staging/iio/light/tsl2583.c 
b/drivers/staging/iio/light/tsl2583.c
index 40aa78e..5a32102 100644
--- a/drivers/staging/iio/light/tsl2583.c
+++ b/drivers/staging/iio/light/tsl2583.c
@@ -67,12 +67,6 @@
 #define TSL2583_CHIP_ID                        0x90
 #define TSL2583_CHIP_ID_MASK           0xf0
 
-enum {
-       TSL258X_CHIP_UNKNOWN = 0,
-       TSL258X_CHIP_WORKING = 1,
-       TSL258X_CHIP_SUSPENDED = 2
-};
-
 /* Per-device data */
 struct taos_als_info {
        u16 als_ch0;
@@ -94,7 +88,7 @@ struct tsl2583_chip {
        struct taos_settings taos_settings;
        int als_time_scale;
        int als_saturation;
-       int taos_chip_status;
+       bool suspended;
 };
 
 struct taos_lux {
@@ -441,7 +435,7 @@ static int tsl2583_chip_init_and_power_on(struct iio_dev 
*indio_dev)
        if (ret < 0)
                return ret;
 
-       chip->taos_chip_status = TSL258X_CHIP_WORKING;
+       chip->suspended = false;
 
        return ret;
 }
@@ -494,7 +488,7 @@ static ssize_t in_illuminance_calibrate_store(struct device 
*dev,
 
        mutex_lock(&chip->als_mutex);
 
-       if (chip->taos_chip_status != TSL258X_CHIP_WORKING) {
+       if (chip->suspended) {
                ret = -EBUSY;
                goto done;
        }
@@ -627,7 +621,7 @@ static int tsl2583_read_raw(struct iio_dev *indio_dev,
 
        mutex_lock(&chip->als_mutex);
 
-       if (chip->taos_chip_status != TSL258X_CHIP_WORKING) {
+       if (chip->suspended) {
                ret = -EBUSY;
                goto read_done;
        }
@@ -704,7 +698,7 @@ static int tsl2583_write_raw(struct iio_dev *indio_dev,
 
        mutex_lock(&chip->als_mutex);
 
-       if (chip->taos_chip_status != TSL258X_CHIP_WORKING) {
+       if (chip->suspended) {
                ret = -EBUSY;
                goto write_done;
        }
@@ -778,7 +772,7 @@ static int taos_probe(struct i2c_client *clientp,
        i2c_set_clientdata(clientp, indio_dev);
 
        mutex_init(&chip->als_mutex);
-       chip->taos_chip_status = TSL258X_CHIP_UNKNOWN;
+       chip->suspended = true;
 
        ret = i2c_smbus_read_byte_data(clientp,
                                       TSL258X_CMD_REG | TSL258X_CHIPID);
@@ -835,7 +829,7 @@ static int __maybe_unused taos_suspend(struct device *dev)
        mutex_lock(&chip->als_mutex);
 
        ret = tsl2583_set_power_state(chip, TSL258X_CNTL_PWR_OFF);
-       chip->taos_chip_status = TSL258X_CHIP_SUSPENDED;
+       chip->suspended = true;
 
        mutex_unlock(&chip->als_mutex);
        return ret;
-- 
2.7.4