Messages in this thread Patch in this message | | | From | Brian Masney <> | Subject | [PATCH v3 06/28] staging: iio: tsl2583: change current chip state from a tristate to a bool | Date | Thu, 10 Nov 2016 04:25:42 -0500 |
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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 <masneyb@onstation.org> --- drivers/staging/iio/light/tsl2583.c | 18 ++++++------------ 1 file changed, 6 insertions(+), 12 deletions(-)
diff --git a/drivers/staging/iio/light/tsl2583.c b/drivers/staging/iio/light/tsl2583.c index 29dd072..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; } @@ -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
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