summaryrefslogtreecommitdiff
path: root/drivers/iio/trigger
diff options
context:
space:
mode:
authorBenjamin Gaignard <benjamin.gaignard@st.com>2019-05-07 11:12:24 +0200
committerJonathan Cameron <Jonathan.Cameron@huawei.com>2019-07-27 20:11:18 +0100
commitb299d00420e2cc4289b1909943bb1e68634ef0bb (patch)
tree713becec4df97e8ddc81cbe0665d275f5f5b723d /drivers/iio/trigger
parent0eec1f38c7bb53b9dd2221ac982739cce7aab7fc (diff)
IIO: stm32: Remove quadrature related functions from trigger driver
Quadrature feature is now hosted on it own framework. Remove quadrature related code from stm32-trigger driver to avoid code duplication and simplify the ABI. Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio/trigger')
-rw-r--r--drivers/iio/trigger/stm32-timer-trigger.c84
1 files changed, 0 insertions, 84 deletions
diff --git a/drivers/iio/trigger/stm32-timer-trigger.c b/drivers/iio/trigger/stm32-timer-trigger.c
index ccf1ce653b25..a5dfe65cd9b9 100644
--- a/drivers/iio/trigger/stm32-timer-trigger.c
+++ b/drivers/iio/trigger/stm32-timer-trigger.c
@@ -608,86 +608,6 @@ static const struct iio_enum stm32_enable_mode_enum = {
.get = stm32_get_enable_mode
};
-static const char *const stm32_quadrature_modes[] = {
- "channel_A",
- "channel_B",
- "quadrature",
-};
-
-static int stm32_set_quadrature_mode(struct iio_dev *indio_dev,
- const struct iio_chan_spec *chan,
- unsigned int mode)
-{
- struct stm32_timer_trigger *priv = iio_priv(indio_dev);
-
- regmap_update_bits(priv->regmap, TIM_SMCR, TIM_SMCR_SMS, mode + 1);
-
- return 0;
-}
-
-static int stm32_get_quadrature_mode(struct iio_dev *indio_dev,
- const struct iio_chan_spec *chan)
-{
- struct stm32_timer_trigger *priv = iio_priv(indio_dev);
- u32 smcr;
- int mode;
-
- regmap_read(priv->regmap, TIM_SMCR, &smcr);
- mode = (smcr & TIM_SMCR_SMS) - 1;
- if ((mode < 0) || (mode > ARRAY_SIZE(stm32_quadrature_modes)))
- return -EINVAL;
-
- return mode;
-}
-
-static const struct iio_enum stm32_quadrature_mode_enum = {
- .items = stm32_quadrature_modes,
- .num_items = ARRAY_SIZE(stm32_quadrature_modes),
- .set = stm32_set_quadrature_mode,
- .get = stm32_get_quadrature_mode
-};
-
-static const char *const stm32_count_direction_states[] = {
- "up",
- "down"
-};
-
-static int stm32_set_count_direction(struct iio_dev *indio_dev,
- const struct iio_chan_spec *chan,
- unsigned int dir)
-{
- struct stm32_timer_trigger *priv = iio_priv(indio_dev);
- u32 val;
- int mode;
-
- /* In encoder mode, direction is RO (given by TI1/TI2 signals) */
- regmap_read(priv->regmap, TIM_SMCR, &val);
- mode = (val & TIM_SMCR_SMS) - 1;
- if ((mode >= 0) || (mode < ARRAY_SIZE(stm32_quadrature_modes)))
- return -EBUSY;
-
- return regmap_update_bits(priv->regmap, TIM_CR1, TIM_CR1_DIR,
- dir ? TIM_CR1_DIR : 0);
-}
-
-static int stm32_get_count_direction(struct iio_dev *indio_dev,
- const struct iio_chan_spec *chan)
-{
- struct stm32_timer_trigger *priv = iio_priv(indio_dev);
- u32 cr1;
-
- regmap_read(priv->regmap, TIM_CR1, &cr1);
-
- return ((cr1 & TIM_CR1_DIR) ? 1 : 0);
-}
-
-static const struct iio_enum stm32_count_direction_enum = {
- .items = stm32_count_direction_states,
- .num_items = ARRAY_SIZE(stm32_count_direction_states),
- .set = stm32_set_count_direction,
- .get = stm32_get_count_direction
-};
-
static ssize_t stm32_count_get_preset(struct iio_dev *indio_dev,
uintptr_t private,
const struct iio_chan_spec *chan,
@@ -728,10 +648,6 @@ static const struct iio_chan_spec_ext_info stm32_trigger_count_info[] = {
.read = stm32_count_get_preset,
.write = stm32_count_set_preset
},
- IIO_ENUM("count_direction", IIO_SEPARATE, &stm32_count_direction_enum),
- IIO_ENUM_AVAILABLE("count_direction", &stm32_count_direction_enum),
- IIO_ENUM("quadrature_mode", IIO_SEPARATE, &stm32_quadrature_mode_enum),
- IIO_ENUM_AVAILABLE("quadrature_mode", &stm32_quadrature_mode_enum),
IIO_ENUM("enable_mode", IIO_SEPARATE, &stm32_enable_mode_enum),
IIO_ENUM_AVAILABLE("enable_mode", &stm32_enable_mode_enum),
IIO_ENUM("trigger_mode", IIO_SEPARATE, &stm32_trigger_mode_enum),