From 81f517270da632c0ddf4c511a086d5aa7e5606ee Mon Sep 17 00:00:00 2001 From: "Andrew F. Davis" Date: Sun, 1 May 2016 15:36:54 -0500 Subject: [PATCH] iio: health/afe440x: Always use separate gain values Locking the two gain stages to the same setting adds no value for us, so initialize them as unlocked and remove the sysfs for unlocking them. This also allows us to greatly simplify showing and setting the gain registers. Signed-off-by: Andrew F. Davis Signed-off-by: Jonathan Cameron --- .../ABI/testing/sysfs-bus-iio-health-afe440x | 9 --- drivers/iio/health/afe4403.c | 60 ++++++------------- drivers/iio/health/afe4404.c | 60 ++++++------------- drivers/iio/health/afe440x.h | 15 +---- 4 files changed, 37 insertions(+), 107 deletions(-) diff --git a/Documentation/ABI/testing/sysfs-bus-iio-health-afe440x b/Documentation/ABI/testing/sysfs-bus-iio-health-afe440x index 3740f253d406..b19053a86054 100644 --- a/Documentation/ABI/testing/sysfs-bus-iio-health-afe440x +++ b/Documentation/ABI/testing/sysfs-bus-iio-health-afe440x @@ -8,15 +8,6 @@ Description: Transimpedance Amplifier. Y is 1 for Rf1 and Cf1, Y is 2 for Rf2 and Cf2 values. -What: /sys/bus/iio/devices/iio:deviceX/tia_separate_en -Date: December 2015 -KernelVersion: -Contact: Andrew F. Davis -Description: - Enable or disable separate settings for the TransImpedance - Amplifier above, when disabled both values are set by the - first channel. - What: /sys/bus/iio/devices/iio:deviceX/in_intensity_ledY_raw /sys/bus/iio/devices/iio:deviceX/in_intensity_ledY_ambient_raw Date: December 2015 diff --git a/drivers/iio/health/afe4403.c b/drivers/iio/health/afe4403.c index 54847853eb7a..bcff5280c5c9 100644 --- a/drivers/iio/health/afe4403.c +++ b/drivers/iio/health/afe4403.c @@ -180,9 +180,9 @@ static ssize_t afe440x_show_register(struct device *dev, struct iio_dev *indio_dev = dev_to_iio_dev(dev); struct afe4403_data *afe = iio_priv(indio_dev); struct afe440x_attr *afe440x_attr = to_afe440x_attr(attr); - unsigned int reg_val, type; + unsigned int reg_val; int vals[2]; - int ret, val_len; + int ret; ret = regmap_read(afe->regmap, afe440x_attr->reg, ®_val); if (ret) @@ -191,27 +191,13 @@ static ssize_t afe440x_show_register(struct device *dev, reg_val &= afe440x_attr->mask; reg_val >>= afe440x_attr->shift; - switch (afe440x_attr->type) { - case SIMPLE: - type = IIO_VAL_INT; - val_len = 1; - vals[0] = reg_val; - break; - case RESISTANCE: - case CAPACITANCE: - type = IIO_VAL_INT_PLUS_MICRO; - val_len = 2; - if (reg_val < afe440x_attr->table_size) { - vals[0] = afe440x_attr->val_table[reg_val].integer; - vals[1] = afe440x_attr->val_table[reg_val].fract; - break; - } + if (reg_val >= afe440x_attr->table_size) return -EINVAL; - default: - return -EINVAL; - } - return iio_format_value(buf, type, val_len, vals); + vals[0] = afe440x_attr->val_table[reg_val].integer; + vals[1] = afe440x_attr->val_table[reg_val].fract; + + return iio_format_value(buf, IIO_VAL_INT_PLUS_MICRO, 2, vals); } static ssize_t afe440x_store_register(struct device *dev, @@ -227,22 +213,12 @@ static ssize_t afe440x_store_register(struct device *dev, if (ret) return ret; - switch (afe440x_attr->type) { - case SIMPLE: - val = integer; - break; - case RESISTANCE: - case CAPACITANCE: - for (val = 0; val < afe440x_attr->table_size; val++) - if (afe440x_attr->val_table[val].integer == integer && - afe440x_attr->val_table[val].fract == fract) - break; - if (val == afe440x_attr->table_size) - return -EINVAL; - break; - default: + for (val = 0; val < afe440x_attr->table_size; val++) + if (afe440x_attr->val_table[val].integer == integer && + afe440x_attr->val_table[val].fract == fract) + break; + if (val == afe440x_attr->table_size) return -EINVAL; - } ret = regmap_update_bits(afe->regmap, afe440x_attr->reg, afe440x_attr->mask, @@ -253,16 +229,13 @@ static ssize_t afe440x_store_register(struct device *dev, return count; } -static AFE440X_ATTR(tia_separate_en, AFE4403_TIAGAIN, AFE440X_TIAGAIN_ENSEPGAIN, SIMPLE, NULL, 0); - -static AFE440X_ATTR(tia_resistance1, AFE4403_TIAGAIN, AFE4403_TIAGAIN_RES, RESISTANCE, afe4403_res_table, ARRAY_SIZE(afe4403_res_table)); -static AFE440X_ATTR(tia_capacitance1, AFE4403_TIAGAIN, AFE4403_TIAGAIN_CAP, CAPACITANCE, afe4403_cap_table, ARRAY_SIZE(afe4403_cap_table)); +static AFE440X_ATTR(tia_resistance1, AFE4403_TIAGAIN, AFE4403_TIAGAIN_RES, afe4403_res_table); +static AFE440X_ATTR(tia_capacitance1, AFE4403_TIAGAIN, AFE4403_TIAGAIN_CAP, afe4403_cap_table); -static AFE440X_ATTR(tia_resistance2, AFE4403_TIA_AMB_GAIN, AFE4403_TIAGAIN_RES, RESISTANCE, afe4403_res_table, ARRAY_SIZE(afe4403_res_table)); -static AFE440X_ATTR(tia_capacitance2, AFE4403_TIA_AMB_GAIN, AFE4403_TIAGAIN_RES, CAPACITANCE, afe4403_cap_table, ARRAY_SIZE(afe4403_cap_table)); +static AFE440X_ATTR(tia_resistance2, AFE4403_TIA_AMB_GAIN, AFE4403_TIAGAIN_RES, afe4403_res_table); +static AFE440X_ATTR(tia_capacitance2, AFE4403_TIA_AMB_GAIN, AFE4403_TIAGAIN_RES, afe4403_cap_table); static struct attribute *afe440x_attributes[] = { - &afe440x_attr_tia_separate_en.dev_attr.attr, &afe440x_attr_tia_resistance1.dev_attr.attr, &afe440x_attr_tia_capacitance1.dev_attr.attr, &afe440x_attr_tia_resistance2.dev_attr.attr, @@ -473,6 +446,7 @@ static const struct iio_trigger_ops afe4403_trigger_ops = { static const struct reg_sequence afe4403_reg_sequences[] = { AFE4403_TIMING_PAIRS, { AFE440X_CONTROL1, AFE440X_CONTROL1_TIMEREN }, + { AFE4403_TIAGAIN, AFE440X_TIAGAIN_ENSEPGAIN }, }; static const struct regmap_range afe4403_yes_ranges[] = { diff --git a/drivers/iio/health/afe4404.c b/drivers/iio/health/afe4404.c index 2d4c522f81e1..b9c1666c963b 100644 --- a/drivers/iio/health/afe4404.c +++ b/drivers/iio/health/afe4404.c @@ -193,9 +193,9 @@ static ssize_t afe440x_show_register(struct device *dev, struct iio_dev *indio_dev = dev_to_iio_dev(dev); struct afe4404_data *afe = iio_priv(indio_dev); struct afe440x_attr *afe440x_attr = to_afe440x_attr(attr); - unsigned int reg_val, type; + unsigned int reg_val; int vals[2]; - int ret, val_len; + int ret; ret = regmap_read(afe->regmap, afe440x_attr->reg, ®_val); if (ret) @@ -204,27 +204,13 @@ static ssize_t afe440x_show_register(struct device *dev, reg_val &= afe440x_attr->mask; reg_val >>= afe440x_attr->shift; - switch (afe440x_attr->type) { - case SIMPLE: - type = IIO_VAL_INT; - val_len = 1; - vals[0] = reg_val; - break; - case RESISTANCE: - case CAPACITANCE: - type = IIO_VAL_INT_PLUS_MICRO; - val_len = 2; - if (reg_val < afe440x_attr->table_size) { - vals[0] = afe440x_attr->val_table[reg_val].integer; - vals[1] = afe440x_attr->val_table[reg_val].fract; - break; - } + if (reg_val >= afe440x_attr->table_size) return -EINVAL; - default: - return -EINVAL; - } - return iio_format_value(buf, type, val_len, vals); + vals[0] = afe440x_attr->val_table[reg_val].integer; + vals[1] = afe440x_attr->val_table[reg_val].fract; + + return iio_format_value(buf, IIO_VAL_INT_PLUS_MICRO, 2, vals); } static ssize_t afe440x_store_register(struct device *dev, @@ -240,22 +226,12 @@ static ssize_t afe440x_store_register(struct device *dev, if (ret) return ret; - switch (afe440x_attr->type) { - case SIMPLE: - val = integer; - break; - case RESISTANCE: - case CAPACITANCE: - for (val = 0; val < afe440x_attr->table_size; val++) - if (afe440x_attr->val_table[val].integer == integer && - afe440x_attr->val_table[val].fract == fract) - break; - if (val == afe440x_attr->table_size) - return -EINVAL; - break; - default: + for (val = 0; val < afe440x_attr->table_size; val++) + if (afe440x_attr->val_table[val].integer == integer && + afe440x_attr->val_table[val].fract == fract) + break; + if (val == afe440x_attr->table_size) return -EINVAL; - } ret = regmap_update_bits(afe->regmap, afe440x_attr->reg, afe440x_attr->mask, @@ -266,16 +242,13 @@ static ssize_t afe440x_store_register(struct device *dev, return count; } -static AFE440X_ATTR(tia_separate_en, AFE4404_TIA_GAIN_SEP, AFE440X_TIAGAIN_ENSEPGAIN, SIMPLE, NULL, 0); - -static AFE440X_ATTR(tia_resistance1, AFE4404_TIA_GAIN, AFE4404_TIA_GAIN_RES, RESISTANCE, afe4404_res_table, ARRAY_SIZE(afe4404_res_table)); -static AFE440X_ATTR(tia_capacitance1, AFE4404_TIA_GAIN, AFE4404_TIA_GAIN_CAP, CAPACITANCE, afe4404_cap_table, ARRAY_SIZE(afe4404_cap_table)); +static AFE440X_ATTR(tia_resistance1, AFE4404_TIA_GAIN, AFE4404_TIA_GAIN_RES, afe4404_res_table); +static AFE440X_ATTR(tia_capacitance1, AFE4404_TIA_GAIN, AFE4404_TIA_GAIN_CAP, afe4404_cap_table); -static AFE440X_ATTR(tia_resistance2, AFE4404_TIA_GAIN_SEP, AFE4404_TIA_GAIN_RES, RESISTANCE, afe4404_res_table, ARRAY_SIZE(afe4404_res_table)); -static AFE440X_ATTR(tia_capacitance2, AFE4404_TIA_GAIN_SEP, AFE4404_TIA_GAIN_CAP, CAPACITANCE, afe4404_cap_table, ARRAY_SIZE(afe4404_cap_table)); +static AFE440X_ATTR(tia_resistance2, AFE4404_TIA_GAIN_SEP, AFE4404_TIA_GAIN_RES, afe4404_res_table); +static AFE440X_ATTR(tia_capacitance2, AFE4404_TIA_GAIN_SEP, AFE4404_TIA_GAIN_CAP, afe4404_cap_table); static struct attribute *afe440x_attributes[] = { - &afe440x_attr_tia_separate_en.dev_attr.attr, &afe440x_attr_tia_resistance1.dev_attr.attr, &afe440x_attr_tia_capacitance1.dev_attr.attr, &afe440x_attr_tia_resistance2.dev_attr.attr, @@ -443,6 +416,7 @@ static const struct iio_trigger_ops afe4404_trigger_ops = { static const struct reg_sequence afe4404_reg_sequences[] = { AFE4404_TIMING_PAIRS, { AFE440X_CONTROL1, AFE440X_CONTROL1_TIMEREN }, + { AFE4404_TIA_GAIN_SEP, AFE440X_TIAGAIN_ENSEPGAIN }, { AFE440X_CONTROL2, AFE440X_CONTROL3_OSC_ENABLE }, }; diff --git a/drivers/iio/health/afe440x.h b/drivers/iio/health/afe440x.h index c671ab78a23a..544bbabd6321 100644 --- a/drivers/iio/health/afe440x.h +++ b/drivers/iio/health/afe440x.h @@ -71,8 +71,7 @@ #define AFE440X_CONTROL1_TIMEREN BIT(8) /* TIAGAIN register fields */ -#define AFE440X_TIAGAIN_ENSEPGAIN_MASK BIT(15) -#define AFE440X_TIAGAIN_ENSEPGAIN_SHIFT 15 +#define AFE440X_TIAGAIN_ENSEPGAIN BIT(15) /* CONTROL2 register fields */ #define AFE440X_CONTROL2_PDN_AFE BIT(0) @@ -133,12 +132,6 @@ struct afe440x_reg_info { .output = true, \ } -enum afe440x_reg_type { - SIMPLE, - RESISTANCE, - CAPACITANCE, -}; - struct afe440x_val_table { int integer; int fract; @@ -167,7 +160,6 @@ struct afe440x_attr { unsigned int reg; unsigned int shift; unsigned int mask; - enum afe440x_reg_type type; const struct afe440x_val_table *val_table; unsigned int table_size; }; @@ -175,7 +167,7 @@ struct afe440x_attr { #define to_afe440x_attr(_dev_attr) \ container_of(_dev_attr, struct afe440x_attr, dev_attr) -#define AFE440X_ATTR(_name, _reg, _field, _type, _table, _size) \ +#define AFE440X_ATTR(_name, _reg, _field, _table) \ struct afe440x_attr afe440x_attr_##_name = { \ .dev_attr = __ATTR(_name, (S_IRUGO | S_IWUSR), \ afe440x_show_register, \ @@ -183,9 +175,8 @@ struct afe440x_attr { .reg = _reg, \ .shift = _field ## _SHIFT, \ .mask = _field ## _MASK, \ - .type = _type, \ .val_table = _table, \ - .table_size = _size, \ + .table_size = ARRAY_SIZE(_table), \ } #endif /* _AFE440X_H */ -- 2.39.5