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-rw-r--r--drivers/iio/Kconfig1
-rw-r--r--drivers/iio/Makefile1
-rw-r--r--drivers/iio/adc/exynos_adc.c24
-rw-r--r--drivers/iio/adc/meson_saradc.c2
-rw-r--r--drivers/iio/adc/stx104.c96
-rw-r--r--drivers/iio/addac/Kconfig8
-rw-r--r--drivers/iio/addac/Makefile6
-rw-r--r--drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c2
-rw-r--r--drivers/iio/common/ms_sensors/ms_sensors_i2c.c4
-rw-r--r--drivers/iio/imu/inv_mpu6050/inv_mpu_core.c4
-rw-r--r--drivers/iio/industrialio-core.c2
-rw-r--r--drivers/iio/pressure/bmp280-core.c2
-rw-r--r--drivers/iio/pressure/ms5611_core.c2
13 files changed, 107 insertions, 47 deletions
diff --git a/drivers/iio/Kconfig b/drivers/iio/Kconfig
index d08aeb41c..810e72e4e 100644
--- a/drivers/iio/Kconfig
+++ b/drivers/iio/Kconfig
@@ -70,6 +70,7 @@ config IIO_TRIGGERED_EVENT
source "drivers/iio/accel/Kconfig"
source "drivers/iio/adc/Kconfig"
+source "drivers/iio/addac/Kconfig"
source "drivers/iio/afe/Kconfig"
source "drivers/iio/amplifiers/Kconfig"
source "drivers/iio/chemical/Kconfig"
diff --git a/drivers/iio/Makefile b/drivers/iio/Makefile
index cb5993251..a60d0cbfe 100644
--- a/drivers/iio/Makefile
+++ b/drivers/iio/Makefile
@@ -15,6 +15,7 @@ obj-$(CONFIG_IIO_TRIGGERED_EVENT) += industrialio-triggered-event.o
obj-y += accel/
obj-y += adc/
+obj-y += addac/
obj-y += afe/
obj-y += amplifiers/
obj-y += buffer/
diff --git a/drivers/iio/adc/exynos_adc.c b/drivers/iio/adc/exynos_adc.c
index 1ca2c4d39..7c5ea4ed5 100644
--- a/drivers/iio/adc/exynos_adc.c
+++ b/drivers/iio/adc/exynos_adc.c
@@ -817,6 +817,12 @@ static int exynos_adc_probe(struct platform_device *pdev)
}
}
+ /* leave out any TS related code if unreachable */
+ if (IS_REACHABLE(CONFIG_INPUT)) {
+ has_ts = of_property_read_bool(pdev->dev.of_node,
+ "has-touchscreen") || pdata;
+ }
+
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
dev_err(&pdev->dev, "no irq resource?\n");
@@ -824,11 +830,15 @@ static int exynos_adc_probe(struct platform_device *pdev)
}
info->irq = irq;
- irq = platform_get_irq(pdev, 1);
- if (irq == -EPROBE_DEFER)
- return irq;
+ if (has_ts) {
+ irq = platform_get_irq(pdev, 1);
+ if (irq == -EPROBE_DEFER)
+ return irq;
- info->tsirq = irq;
+ info->tsirq = irq;
+ } else {
+ info->tsirq = -1;
+ }
info->dev = &pdev->dev;
@@ -895,12 +905,6 @@ static int exynos_adc_probe(struct platform_device *pdev)
if (info->data->init_hw)
info->data->init_hw(info);
- /* leave out any TS related code if unreachable */
- if (IS_REACHABLE(CONFIG_INPUT)) {
- has_ts = of_property_read_bool(pdev->dev.of_node,
- "has-touchscreen") || pdata;
- }
-
if (pdata)
info->delay = pdata->delay;
else
diff --git a/drivers/iio/adc/meson_saradc.c b/drivers/iio/adc/meson_saradc.c
index 6e0ef9bb2..c44876935 100644
--- a/drivers/iio/adc/meson_saradc.c
+++ b/drivers/iio/adc/meson_saradc.c
@@ -75,7 +75,7 @@
#define MESON_SAR_ADC_REG3_PANEL_DETECT_COUNT_MASK GENMASK(20, 18)
#define MESON_SAR_ADC_REG3_PANEL_DETECT_FILTER_TB_MASK GENMASK(17, 16)
#define MESON_SAR_ADC_REG3_ADC_CLK_DIV_SHIFT 10
- #define MESON_SAR_ADC_REG3_ADC_CLK_DIV_WIDTH 5
+ #define MESON_SAR_ADC_REG3_ADC_CLK_DIV_WIDTH 6
#define MESON_SAR_ADC_REG3_BLOCK_DLY_SEL_MASK GENMASK(9, 8)
#define MESON_SAR_ADC_REG3_BLOCK_DLY_MASK GENMASK(7, 0)
diff --git a/drivers/iio/adc/stx104.c b/drivers/iio/adc/stx104.c
index 0662ca199..49aeb7621 100644
--- a/drivers/iio/adc/stx104.c
+++ b/drivers/iio/adc/stx104.c
@@ -23,7 +23,9 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
+#include <linux/mutex.h>
#include <linux/spinlock.h>
+#include <linux/types.h>
#define STX104_OUT_CHAN(chan) { \
.type = IIO_VOLTAGE, \
@@ -53,13 +55,37 @@ module_param_hw_array(base, uint, ioport, &num_stx104, 0);
MODULE_PARM_DESC(base, "Apex Embedded Systems STX104 base addresses");
/**
+ * struct stx104_reg - device register structure
+ * @ssr_ad: Software Strobe Register and ADC Data
+ * @achan: ADC Channel
+ * @dio: Digital I/O
+ * @dac: DAC Channels
+ * @cir_asr: Clear Interrupts and ADC Status
+ * @acr: ADC Control
+ * @pccr_fsh: Pacer Clock Control and FIFO Status MSB
+ * @acfg: ADC Configuration
+ */
+struct stx104_reg {
+ u16 ssr_ad;
+ u8 achan;
+ u8 dio;
+ u16 dac[2];
+ u8 cir_asr;
+ u8 acr;
+ u8 pccr_fsh;
+ u8 acfg;
+};
+
+/**
* struct stx104_iio - IIO device private data structure
+ * @lock: synchronization lock to prevent I/O race conditions
* @chan_out_states: channels' output states
- * @base: base port address of the IIO device
+ * @reg: I/O address offset for the device registers
*/
struct stx104_iio {
+ struct mutex lock;
unsigned int chan_out_states[STX104_NUM_OUT_CHAN];
- unsigned int base;
+ struct stx104_reg __iomem *reg;
};
/**
@@ -72,7 +98,7 @@ struct stx104_iio {
struct stx104_gpio {
struct gpio_chip chip;
spinlock_t lock;
- unsigned int base;
+ u8 __iomem *base;
unsigned int out_state;
};
@@ -80,6 +106,7 @@ static int stx104_read_raw(struct iio_dev *indio_dev,
struct iio_chan_spec const *chan, int *val, int *val2, long mask)
{
struct stx104_iio *const priv = iio_priv(indio_dev);
+ struct stx104_reg __iomem *const reg = priv->reg;
unsigned int adc_config;
int adbu;
int gain;
@@ -87,7 +114,7 @@ static int stx104_read_raw(struct iio_dev *indio_dev,
switch (mask) {
case IIO_CHAN_INFO_HARDWAREGAIN:
/* get gain configuration */
- adc_config = inb(priv->base + 11);
+ adc_config = ioread8(&reg->acfg);
gain = adc_config & 0x3;
*val = 1 << gain;
@@ -98,25 +125,31 @@ static int stx104_read_raw(struct iio_dev *indio_dev,
return IIO_VAL_INT;
}
+ mutex_lock(&priv->lock);
+
/* select ADC channel */
- outb(chan->channel | (chan->channel << 4), priv->base + 2);
+ iowrite8(chan->channel | (chan->channel << 4), &reg->achan);
+
+ /* trigger ADC sample capture by writing to the 8-bit
+ * Software Strobe Register and wait for completion
+ */
+ iowrite8(0, &reg->ssr_ad);
+ while (ioread8(&reg->cir_asr) & BIT(7));
- /* trigger ADC sample capture and wait for completion */
- outb(0, priv->base);
- while (inb(priv->base + 8) & BIT(7));
+ *val = ioread16(&reg->ssr_ad);
- *val = inw(priv->base);
+ mutex_unlock(&priv->lock);
return IIO_VAL_INT;
case IIO_CHAN_INFO_OFFSET:
/* get ADC bipolar/unipolar configuration */
- adc_config = inb(priv->base + 11);
+ adc_config = ioread8(&reg->acfg);
adbu = !(adc_config & BIT(2));
*val = -32768 * adbu;
return IIO_VAL_INT;
case IIO_CHAN_INFO_SCALE:
/* get ADC bipolar/unipolar and gain configuration */
- adc_config = inb(priv->base + 11);
+ adc_config = ioread8(&reg->acfg);
adbu = !(adc_config & BIT(2));
gain = adc_config & 0x3;
@@ -138,16 +171,16 @@ static int stx104_write_raw(struct iio_dev *indio_dev,
/* Only four gain states (x1, x2, x4, x8) */
switch (val) {
case 1:
- outb(0, priv->base + 11);
+ iowrite8(0, &priv->reg->acfg);
break;
case 2:
- outb(1, priv->base + 11);
+ iowrite8(1, &priv->reg->acfg);
break;
case 4:
- outb(2, priv->base + 11);
+ iowrite8(2, &priv->reg->acfg);
break;
case 8:
- outb(3, priv->base + 11);
+ iowrite8(3, &priv->reg->acfg);
break;
default:
return -EINVAL;
@@ -160,9 +193,12 @@ static int stx104_write_raw(struct iio_dev *indio_dev,
if ((unsigned int)val > 65535)
return -EINVAL;
+ mutex_lock(&priv->lock);
+
priv->chan_out_states[chan->channel] = val;
- outw(val, priv->base + 4 + 2 * chan->channel);
+ iowrite16(val, &priv->reg->dac[chan->channel]);
+ mutex_unlock(&priv->lock);
return 0;
}
return -EINVAL;
@@ -230,7 +266,7 @@ static int stx104_gpio_get(struct gpio_chip *chip, unsigned int offset)
if (offset >= 4)
return -EINVAL;
- return !!(inb(stx104gpio->base) & BIT(offset));
+ return !!(ioread8(stx104gpio->base) & BIT(offset));
}
static int stx104_gpio_get_multiple(struct gpio_chip *chip, unsigned long *mask,
@@ -238,7 +274,7 @@ static int stx104_gpio_get_multiple(struct gpio_chip *chip, unsigned long *mask,
{
struct stx104_gpio *const stx104gpio = gpiochip_get_data(chip);
- *bits = inb(stx104gpio->base);
+ *bits = ioread8(stx104gpio->base);
return 0;
}
@@ -260,7 +296,7 @@ static void stx104_gpio_set(struct gpio_chip *chip, unsigned int offset,
else
stx104gpio->out_state &= ~mask;
- outb(stx104gpio->out_state, stx104gpio->base);
+ iowrite8(stx104gpio->out_state, stx104gpio->base);
spin_unlock_irqrestore(&stx104gpio->lock, flags);
}
@@ -287,7 +323,7 @@ static void stx104_gpio_set_multiple(struct gpio_chip *chip,
stx104gpio->out_state &= ~*mask;
stx104gpio->out_state |= *mask & *bits;
- outb(stx104gpio->out_state, stx104gpio->base);
+ iowrite8(stx104gpio->out_state, stx104gpio->base);
spin_unlock_irqrestore(&stx104gpio->lock, flags);
}
@@ -314,11 +350,16 @@ static int stx104_probe(struct device *dev, unsigned int id)
return -EBUSY;
}
+ priv = iio_priv(indio_dev);
+ priv->reg = devm_ioport_map(dev, base[id], STX104_EXTENT);
+ if (!priv->reg)
+ return -ENOMEM;
+
indio_dev->info = &stx104_info;
indio_dev->modes = INDIO_DIRECT_MODE;
/* determine if differential inputs */
- if (inb(base[id] + 8) & BIT(5)) {
+ if (ioread8(&priv->reg->cir_asr) & BIT(5)) {
indio_dev->num_channels = ARRAY_SIZE(stx104_channels_diff);
indio_dev->channels = stx104_channels_diff;
} else {
@@ -329,18 +370,17 @@ static int stx104_probe(struct device *dev, unsigned int id)
indio_dev->name = dev_name(dev);
indio_dev->dev.parent = dev;
- priv = iio_priv(indio_dev);
- priv->base = base[id];
+ mutex_init(&priv->lock);
/* configure device for software trigger operation */
- outb(0, base[id] + 9);
+ iowrite8(0, &priv->reg->acr);
/* initialize gain setting to x1 */
- outb(0, base[id] + 11);
+ iowrite8(0, &priv->reg->acfg);
/* initialize DAC output to 0V */
- outw(0, base[id] + 4);
- outw(0, base[id] + 6);
+ iowrite16(0, &priv->reg->dac[0]);
+ iowrite16(0, &priv->reg->dac[1]);
stx104gpio->chip.label = dev_name(dev);
stx104gpio->chip.parent = dev;
@@ -355,7 +395,7 @@ static int stx104_probe(struct device *dev, unsigned int id)
stx104gpio->chip.get_multiple = stx104_gpio_get_multiple;
stx104gpio->chip.set = stx104_gpio_set;
stx104gpio->chip.set_multiple = stx104_gpio_set_multiple;
- stx104gpio->base = base[id] + 3;
+ stx104gpio->base = &priv->reg->dio;
stx104gpio->out_state = 0x0;
spin_lock_init(&stx104gpio->lock);
diff --git a/drivers/iio/addac/Kconfig b/drivers/iio/addac/Kconfig
new file mode 100644
index 000000000..2e64d7755
--- /dev/null
+++ b/drivers/iio/addac/Kconfig
@@ -0,0 +1,8 @@
+#
+# ADC DAC drivers
+#
+# When adding new entries keep the list in alphabetical order
+
+menu "Analog to digital and digital to analog converters"
+
+endmenu
diff --git a/drivers/iio/addac/Makefile b/drivers/iio/addac/Makefile
new file mode 100644
index 000000000..b888b9ee1
--- /dev/null
+++ b/drivers/iio/addac/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for industrial I/O ADDAC drivers
+#
+
+# When adding new entries keep the list in alphabetical order
diff --git a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c
index 414cc43c2..66991fd4b 100644
--- a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c
+++ b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c
@@ -46,7 +46,7 @@ int cros_ec_sensors_core_init(struct platform_device *pdev,
platform_set_drvdata(pdev, indio_dev);
state->ec = ec->ec_dev;
- state->msg = devm_kzalloc(&pdev->dev,
+ state->msg = devm_kzalloc(&pdev->dev, sizeof(*state->msg) +
max((u16)sizeof(struct ec_params_motion_sense),
state->ec->max_response), GFP_KERNEL);
if (!state->msg)
diff --git a/drivers/iio/common/ms_sensors/ms_sensors_i2c.c b/drivers/iio/common/ms_sensors/ms_sensors_i2c.c
index 125b5ff61..a551b0071 100644
--- a/drivers/iio/common/ms_sensors/ms_sensors_i2c.c
+++ b/drivers/iio/common/ms_sensors/ms_sensors_i2c.c
@@ -16,8 +16,8 @@
/* Conversion times in us */
static const u16 ms_sensors_ht_t_conversion_time[] = { 50000, 25000,
13000, 7000 };
-static const u16 ms_sensors_ht_h_conversion_time[] = { 16000, 3000,
- 5000, 8000 };
+static const u16 ms_sensors_ht_h_conversion_time[] = { 16000, 5000,
+ 3000, 8000 };
static const u16 ms_sensors_tp_conversion_time[] = { 500, 1100, 2100,
4100, 8220, 16440 };
diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
index 6b560d99f..351032e4e 100644
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
@@ -508,13 +508,13 @@ inv_mpu6050_read_raw(struct iio_dev *indio_dev,
ret = inv_mpu6050_sensor_show(st, st->reg->gyro_offset,
chan->channel2, val);
mutex_unlock(&st->lock);
- return IIO_VAL_INT;
+ return ret;
case IIO_ACCEL:
mutex_lock(&st->lock);
ret = inv_mpu6050_sensor_show(st, st->reg->accl_offset,
chan->channel2, val);
mutex_unlock(&st->lock);
- return IIO_VAL_INT;
+ return ret;
default:
return -EINVAL;
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index 49d4b4f1a..ad9bd2001 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -323,7 +323,7 @@ static ssize_t iio_debugfs_write_reg(struct file *file,
char buf[80];
int ret;
- count = min_t(size_t, count, (sizeof(buf)-1));
+ count = min(count, sizeof(buf) - 1);
if (copy_from_user(buf, userbuf, count))
return -EFAULT;
diff --git a/drivers/iio/pressure/bmp280-core.c b/drivers/iio/pressure/bmp280-core.c
index 074f6f865..5efc50d93 100644
--- a/drivers/iio/pressure/bmp280-core.c
+++ b/drivers/iio/pressure/bmp280-core.c
@@ -1110,7 +1110,7 @@ int bmp280_common_probe(struct device *dev,
* however as it happens, the BMP085 shares the chip ID of BMP180
* so we look for an IRQ if we have that.
*/
- if (irq > 0 || (chip_id == BMP180_CHIP_ID)) {
+ if (irq > 0 && (chip_id == BMP180_CHIP_ID)) {
ret = bmp085_fetch_eoc_irq(dev, name, irq, data);
if (ret)
goto out_disable_vdda;
diff --git a/drivers/iio/pressure/ms5611_core.c b/drivers/iio/pressure/ms5611_core.c
index 5c7a734ed..9980c6f33 100644
--- a/drivers/iio/pressure/ms5611_core.c
+++ b/drivers/iio/pressure/ms5611_core.c
@@ -79,7 +79,7 @@ static bool ms5611_prom_is_valid(u16 *prom, size_t len)
crc = (crc >> 12) & 0x000F;
- return crc_orig != 0x0000 && crc == crc_orig;
+ return crc == crc_orig;
}
static int ms5611_read_prom(struct iio_dev *indio_dev)
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-21 17:59:52 +0000