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-rw-r--r--drivers/iio/adc/Kconfig4
-rw-r--r--drivers/iio/adc/at91_adc.c356
-rw-r--r--drivers/iio/adc/exynos_adc.c6
-rw-r--r--drivers/iio/adc/men_z188_adc.c4
-rw-r--r--drivers/iio/adc/twl4030-madc.c1
-rw-r--r--drivers/iio/common/hid-sensors/hid-sensor-trigger.c3
-rw-r--r--drivers/iio/imu/inv_mpu6050/inv_mpu_core.c7
-rw-r--r--drivers/iio/magnetometer/ak8975.c9
-rw-r--r--drivers/iio/pressure/mpl3115.c6
9 files changed, 320 insertions, 76 deletions
diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
index de6d2f41291d..20a7073f1dd6 100644
--- a/drivers/iio/adc/Kconfig
+++ b/drivers/iio/adc/Kconfig
@@ -118,7 +118,7 @@ config AT91_ADC
Say yes here to build support for Atmel AT91 ADC.
config EXYNOS_ADC
- bool "Exynos ADC driver support"
+ tristate "Exynos ADC driver support"
depends on ARCH_EXYNOS || (OF && COMPILE_TEST)
help
Core support for the ADC block found in the Samsung EXYNOS series
@@ -126,7 +126,7 @@ config EXYNOS_ADC
this resource.
config LP8788_ADC
- bool "LP8788 ADC driver"
+ tristate "LP8788 ADC driver"
depends on MFD_LP8788
help
Say yes here to build support for TI LP8788 ADC.
diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c
index b9592010511e..772e869c280e 100644
--- a/drivers/iio/adc/at91_adc.c
+++ b/drivers/iio/adc/at91_adc.c
@@ -31,7 +31,108 @@
#include <linux/iio/trigger_consumer.h>
#include <linux/iio/triggered_buffer.h>
-#include <mach/at91_adc.h>
+/* Registers */
+#define AT91_ADC_CR 0x00 /* Control Register */
+#define AT91_ADC_SWRST (1 << 0) /* Software Reset */
+#define AT91_ADC_START (1 << 1) /* Start Conversion */
+
+#define AT91_ADC_MR 0x04 /* Mode Register */
+#define AT91_ADC_TSAMOD (3 << 0) /* ADC mode */
+#define AT91_ADC_TSAMOD_ADC_ONLY_MODE (0 << 0) /* ADC Mode */
+#define AT91_ADC_TSAMOD_TS_ONLY_MODE (1 << 0) /* Touch Screen Only Mode */
+#define AT91_ADC_TRGEN (1 << 0) /* Trigger Enable */
+#define AT91_ADC_TRGSEL (7 << 1) /* Trigger Selection */
+#define AT91_ADC_TRGSEL_TC0 (0 << 1)
+#define AT91_ADC_TRGSEL_TC1 (1 << 1)
+#define AT91_ADC_TRGSEL_TC2 (2 << 1)
+#define AT91_ADC_TRGSEL_EXTERNAL (6 << 1)
+#define AT91_ADC_LOWRES (1 << 4) /* Low Resolution */
+#define AT91_ADC_SLEEP (1 << 5) /* Sleep Mode */
+#define AT91_ADC_PENDET (1 << 6) /* Pen contact detection enable */
+#define AT91_ADC_PRESCAL_9260 (0x3f << 8) /* Prescalar Rate Selection */
+#define AT91_ADC_PRESCAL_9G45 (0xff << 8)
+#define AT91_ADC_PRESCAL_(x) ((x) << 8)
+#define AT91_ADC_STARTUP_9260 (0x1f << 16) /* Startup Up Time */
+#define AT91_ADC_STARTUP_9G45 (0x7f << 16)
+#define AT91_ADC_STARTUP_9X5 (0xf << 16)
+#define AT91_ADC_STARTUP_(x) ((x) << 16)
+#define AT91_ADC_SHTIM (0xf << 24) /* Sample & Hold Time */
+#define AT91_ADC_SHTIM_(x) ((x) << 24)
+#define AT91_ADC_PENDBC (0x0f << 28) /* Pen Debounce time */
+#define AT91_ADC_PENDBC_(x) ((x) << 28)
+
+#define AT91_ADC_TSR 0x0C
+#define AT91_ADC_TSR_SHTIM (0xf << 24) /* Sample & Hold Time */
+#define AT91_ADC_TSR_SHTIM_(x) ((x) << 24)
+
+#define AT91_ADC_CHER 0x10 /* Channel Enable Register */
+#define AT91_ADC_CHDR 0x14 /* Channel Disable Register */
+#define AT91_ADC_CHSR 0x18 /* Channel Status Register */
+#define AT91_ADC_CH(n) (1 << (n)) /* Channel Number */
+
+#define AT91_ADC_SR 0x1C /* Status Register */
+#define AT91_ADC_EOC(n) (1 << (n)) /* End of Conversion on Channel N */
+#define AT91_ADC_OVRE(n) (1 << ((n) + 8))/* Overrun Error on Channel N */
+#define AT91_ADC_DRDY (1 << 16) /* Data Ready */
+#define AT91_ADC_GOVRE (1 << 17) /* General Overrun Error */
+#define AT91_ADC_ENDRX (1 << 18) /* End of RX Buffer */
+#define AT91_ADC_RXFUFF (1 << 19) /* RX Buffer Full */
+
+#define AT91_ADC_SR_9X5 0x30 /* Status Register for 9x5 */
+#define AT91_ADC_SR_DRDY_9X5 (1 << 24) /* Data Ready */
+
+#define AT91_ADC_LCDR 0x20 /* Last Converted Data Register */
+#define AT91_ADC_LDATA (0x3ff)
+
+#define AT91_ADC_IER 0x24 /* Interrupt Enable Register */
+#define AT91_ADC_IDR 0x28 /* Interrupt Disable Register */
+#define AT91_ADC_IMR 0x2C /* Interrupt Mask Register */
+#define AT91RL_ADC_IER_PEN (1 << 20)
+#define AT91RL_ADC_IER_NOPEN (1 << 21)
+#define AT91_ADC_IER_PEN (1 << 29)
+#define AT91_ADC_IER_NOPEN (1 << 30)
+#define AT91_ADC_IER_XRDY (1 << 20)
+#define AT91_ADC_IER_YRDY (1 << 21)
+#define AT91_ADC_IER_PRDY (1 << 22)
+#define AT91_ADC_ISR_PENS (1 << 31)
+
+#define AT91_ADC_CHR(n) (0x30 + ((n) * 4)) /* Channel Data Register N */
+#define AT91_ADC_DATA (0x3ff)
+
+#define AT91_ADC_CDR0_9X5 (0x50) /* Channel Data Register 0 for 9X5 */
+
+#define AT91_ADC_ACR 0x94 /* Analog Control Register */
+#define AT91_ADC_ACR_PENDETSENS (0x3 << 0) /* pull-up resistor */
+
+#define AT91_ADC_TSMR 0xB0
+#define AT91_ADC_TSMR_TSMODE (3 << 0) /* Touch Screen Mode */
+#define AT91_ADC_TSMR_TSMODE_NONE (0 << 0)
+#define AT91_ADC_TSMR_TSMODE_4WIRE_NO_PRESS (1 << 0)
+#define AT91_ADC_TSMR_TSMODE_4WIRE_PRESS (2 << 0)
+#define AT91_ADC_TSMR_TSMODE_5WIRE (3 << 0)
+#define AT91_ADC_TSMR_TSAV (3 << 4) /* Averages samples */
+#define AT91_ADC_TSMR_TSAV_(x) ((x) << 4)
+#define AT91_ADC_TSMR_SCTIM (0x0f << 16) /* Switch closure time */
+#define AT91_ADC_TSMR_PENDBC (0x0f << 28) /* Pen Debounce time */
+#define AT91_ADC_TSMR_PENDBC_(x) ((x) << 28)
+#define AT91_ADC_TSMR_NOTSDMA (1 << 22) /* No Touchscreen DMA */
+#define AT91_ADC_TSMR_PENDET_DIS (0 << 24) /* Pen contact detection disable */
+#define AT91_ADC_TSMR_PENDET_ENA (1 << 24) /* Pen contact detection enable */
+
+#define AT91_ADC_TSXPOSR 0xB4
+#define AT91_ADC_TSYPOSR 0xB8
+#define AT91_ADC_TSPRESSR 0xBC
+
+#define AT91_ADC_TRGR_9260 AT91_ADC_MR
+#define AT91_ADC_TRGR_9G45 0x08
+#define AT91_ADC_TRGR_9X5 0xC0
+
+/* Trigger Register bit field */
+#define AT91_ADC_TRGR_TRGPER (0xffff << 16)
+#define AT91_ADC_TRGR_TRGPER_(x) ((x) << 16)
+#define AT91_ADC_TRGR_TRGMOD (0x7 << 0)
+#define AT91_ADC_TRGR_NONE (0 << 0)
+#define AT91_ADC_TRGR_MOD_PERIOD_TRIG (5 << 0)
#define AT91_ADC_CHAN(st, ch) \
(st->registers->channel_base + (ch * 4))
@@ -46,6 +147,29 @@
#define TOUCH_SAMPLE_PERIOD_US 2000 /* 2ms */
#define TOUCH_PEN_DETECT_DEBOUNCE_US 200
+#define MAX_RLPOS_BITS 10
+#define TOUCH_SAMPLE_PERIOD_US_RL 10000 /* 10ms, the SoC can't keep up with 2ms */
+#define TOUCH_SHTIM 0xa
+
+/**
+ * struct at91_adc_reg_desc - Various informations relative to registers
+ * @channel_base: Base offset for the channel data registers
+ * @drdy_mask: Mask of the DRDY field in the relevant registers
+ (Interruptions registers mostly)
+ * @status_register: Offset of the Interrupt Status Register
+ * @trigger_register: Offset of the Trigger setup register
+ * @mr_prescal_mask: Mask of the PRESCAL field in the adc MR register
+ * @mr_startup_mask: Mask of the STARTUP field in the adc MR register
+ */
+struct at91_adc_reg_desc {
+ u8 channel_base;
+ u32 drdy_mask;
+ u8 status_register;
+ u8 trigger_register;
+ u32 mr_prescal_mask;
+ u32 mr_startup_mask;
+};
+
struct at91_adc_caps {
bool has_ts; /* Support touch screen */
bool has_tsmr; /* only at91sam9x5, sama5d3 have TSMR reg */
@@ -64,12 +188,6 @@ struct at91_adc_caps {
struct at91_adc_reg_desc registers;
};
-enum atmel_adc_ts_type {
- ATMEL_ADC_TOUCHSCREEN_NONE = 0,
- ATMEL_ADC_TOUCHSCREEN_4WIRE = 4,
- ATMEL_ADC_TOUCHSCREEN_5WIRE = 5,
-};
-
struct at91_adc_state {
struct clk *adc_clk;
u16 *buffer;
@@ -114,6 +232,11 @@ struct at91_adc_state {
u16 ts_sample_period_val;
u32 ts_pressure_threshold;
+ u16 ts_pendbc;
+
+ bool ts_bufferedmeasure;
+ u32 ts_prev_absx;
+ u32 ts_prev_absy;
};
static irqreturn_t at91_adc_trigger_handler(int irq, void *p)
@@ -220,7 +343,72 @@ static int at91_ts_sample(struct at91_adc_state *st)
return 0;
}
-static irqreturn_t at91_adc_interrupt(int irq, void *private)
+static irqreturn_t at91_adc_rl_interrupt(int irq, void *private)
+{
+ struct iio_dev *idev = private;
+ struct at91_adc_state *st = iio_priv(idev);
+ u32 status = at91_adc_readl(st, st->registers->status_register);
+ unsigned int reg;
+
+ status &= at91_adc_readl(st, AT91_ADC_IMR);
+ if (status & st->registers->drdy_mask)
+ handle_adc_eoc_trigger(irq, idev);
+
+ if (status & AT91RL_ADC_IER_PEN) {
+ /* Disabling pen debounce is required to get a NOPEN irq */
+ reg = at91_adc_readl(st, AT91_ADC_MR);
+ reg &= ~AT91_ADC_PENDBC;
+ at91_adc_writel(st, AT91_ADC_MR, reg);
+
+ at91_adc_writel(st, AT91_ADC_IDR, AT91RL_ADC_IER_PEN);
+ at91_adc_writel(st, AT91_ADC_IER, AT91RL_ADC_IER_NOPEN
+ | AT91_ADC_EOC(3));
+ /* Set up period trigger for sampling */
+ at91_adc_writel(st, st->registers->trigger_register,
+ AT91_ADC_TRGR_MOD_PERIOD_TRIG |
+ AT91_ADC_TRGR_TRGPER_(st->ts_sample_period_val));
+ } else if (status & AT91RL_ADC_IER_NOPEN) {
+ reg = at91_adc_readl(st, AT91_ADC_MR);
+ reg |= AT91_ADC_PENDBC_(st->ts_pendbc) & AT91_ADC_PENDBC;
+ at91_adc_writel(st, AT91_ADC_MR, reg);
+ at91_adc_writel(st, st->registers->trigger_register,
+ AT91_ADC_TRGR_NONE);
+
+ at91_adc_writel(st, AT91_ADC_IDR, AT91RL_ADC_IER_NOPEN
+ | AT91_ADC_EOC(3));
+ at91_adc_writel(st, AT91_ADC_IER, AT91RL_ADC_IER_PEN);
+ st->ts_bufferedmeasure = false;
+ input_report_key(st->ts_input, BTN_TOUCH, 0);
+ input_sync(st->ts_input);
+ } else if (status & AT91_ADC_EOC(3)) {
+ /* Conversion finished */
+ if (st->ts_bufferedmeasure) {
+ /*
+ * Last measurement is always discarded, since it can
+ * be erroneous.
+ * Always report previous measurement
+ */
+ input_report_abs(st->ts_input, ABS_X, st->ts_prev_absx);
+ input_report_abs(st->ts_input, ABS_Y, st->ts_prev_absy);
+ input_report_key(st->ts_input, BTN_TOUCH, 1);
+ input_sync(st->ts_input);
+ } else
+ st->ts_bufferedmeasure = true;
+
+ /* Now make new measurement */
+ st->ts_prev_absx = at91_adc_readl(st, AT91_ADC_CHAN(st, 3))
+ << MAX_RLPOS_BITS;
+ st->ts_prev_absx /= at91_adc_readl(st, AT91_ADC_CHAN(st, 2));
+
+ st->ts_prev_absy = at91_adc_readl(st, AT91_ADC_CHAN(st, 1))
+ << MAX_RLPOS_BITS;
+ st->ts_prev_absy /= at91_adc_readl(st, AT91_ADC_CHAN(st, 0));
+ }
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t at91_adc_9x5_interrupt(int irq, void *private)
{
struct iio_dev *idev = private;
struct at91_adc_state *st = iio_priv(idev);
@@ -322,12 +510,11 @@ static int at91_adc_channel_init(struct iio_dev *idev)
return idev->num_channels;
}
-static u8 at91_adc_get_trigger_value_by_name(struct iio_dev *idev,
+static int at91_adc_get_trigger_value_by_name(struct iio_dev *idev,
struct at91_adc_trigger *triggers,
const char *trigger_name)
{
struct at91_adc_state *st = iio_priv(idev);
- u8 value = 0;
int i;
for (i = 0; i < st->trigger_number; i++) {
@@ -340,15 +527,16 @@ static u8 at91_adc_get_trigger_value_by_name(struct iio_dev *idev,
return -ENOMEM;
if (strcmp(trigger_name, name) == 0) {
- value = triggers[i].value;
kfree(name);
- break;
+ if (triggers[i].value == 0)
+ return -EINVAL;
+ return triggers[i].value;
}
kfree(name);
}
- return value;
+ return -EINVAL;
}
static int at91_adc_configure_trigger(struct iio_trigger *trig, bool state)
@@ -358,14 +546,14 @@ static int at91_adc_configure_trigger(struct iio_trigger *trig, bool state)
struct iio_buffer *buffer = idev->buffer;
struct at91_adc_reg_desc *reg = st->registers;
u32 status = at91_adc_readl(st, reg->trigger_register);
- u8 value;
+ int value;
u8 bit;
value = at91_adc_get_trigger_value_by_name(idev,
st->trigger_list,
idev->trig->name);
- if (value == 0)
- return -EINVAL;
+ if (value < 0)
+ return value;
if (state) {
st->buffer = kmalloc(idev->scan_bytes, GFP_KERNEL);
@@ -653,6 +841,8 @@ static int at91_adc_probe_dt_ts(struct device_node *node,
return -EINVAL;
}
+ if (!st->caps->has_tsmr)
+ return 0;
prop = 0;
of_property_read_u32(node, "atmel,adc-ts-pressure-threshold", &prop);
st->ts_pressure_threshold = prop;
@@ -776,6 +966,7 @@ static int at91_adc_probe_pdata(struct at91_adc_state *st,
st->trigger_number = pdata->trigger_number;
st->trigger_list = pdata->trigger_list;
st->registers = &st->caps->registers;
+ st->touchscreen_type = pdata->touchscreen_type;
return 0;
}
@@ -790,7 +981,10 @@ static int atmel_ts_open(struct input_dev *dev)
{
struct at91_adc_state *st = input_get_drvdata(dev);
- at91_adc_writel(st, AT91_ADC_IER, AT91_ADC_IER_PEN);
+ if (st->caps->has_tsmr)
+ at91_adc_writel(st, AT91_ADC_IER, AT91_ADC_IER_PEN);
+ else
+ at91_adc_writel(st, AT91_ADC_IER, AT91RL_ADC_IER_PEN);
return 0;
}
@@ -798,45 +992,61 @@ static void atmel_ts_close(struct input_dev *dev)
{
struct at91_adc_state *st = input_get_drvdata(dev);
- at91_adc_writel(st, AT91_ADC_IDR, AT91_ADC_IER_PEN);
+ if (st->caps->has_tsmr)
+ at91_adc_writel(st, AT91_ADC_IDR, AT91_ADC_IER_PEN);
+ else
+ at91_adc_writel(st, AT91_ADC_IDR, AT91RL_ADC_IER_PEN);
}
static int at91_ts_hw_init(struct at91_adc_state *st, u32 adc_clk_khz)
{
- u32 reg = 0, pendbc;
+ u32 reg = 0;
int i = 0;
- if (st->touchscreen_type == ATMEL_ADC_TOUCHSCREEN_4WIRE)
- reg = AT91_ADC_TSMR_TSMODE_4WIRE_PRESS;
- else
- reg = AT91_ADC_TSMR_TSMODE_5WIRE;
-
/* a Pen Detect Debounce Time is necessary for the ADC Touch to avoid
* pen detect noise.
* The formula is : Pen Detect Debounce Time = (2 ^ pendbc) / ADCClock
*/
- pendbc = round_up(TOUCH_PEN_DETECT_DEBOUNCE_US * adc_clk_khz / 1000, 1);
+ st->ts_pendbc = round_up(TOUCH_PEN_DETECT_DEBOUNCE_US * adc_clk_khz /
+ 1000, 1);
- while (pendbc >> ++i)
+ while (st->ts_pendbc >> ++i)
; /* Empty! Find the shift offset */
- if (abs(pendbc - (1 << i)) < abs(pendbc - (1 << (i - 1))))
- pendbc = i;
+ if (abs(st->ts_pendbc - (1 << i)) < abs(st->ts_pendbc - (1 << (i - 1))))
+ st->ts_pendbc = i;
else
- pendbc = i - 1;
+ st->ts_pendbc = i - 1;
- if (st->caps->has_tsmr) {
- reg |= AT91_ADC_TSMR_TSAV_(st->caps->ts_filter_average)
- & AT91_ADC_TSMR_TSAV;
- reg |= AT91_ADC_TSMR_PENDBC_(pendbc) & AT91_ADC_TSMR_PENDBC;
- reg |= AT91_ADC_TSMR_NOTSDMA;
- reg |= AT91_ADC_TSMR_PENDET_ENA;
- reg |= 0x03 << 8; /* TSFREQ, need bigger than TSAV */
-
- at91_adc_writel(st, AT91_ADC_TSMR, reg);
- } else {
- /* TODO: for 9g45 which has no TSMR */
+ if (!st->caps->has_tsmr) {
+ reg = at91_adc_readl(st, AT91_ADC_MR);
+ reg |= AT91_ADC_TSAMOD_TS_ONLY_MODE | AT91_ADC_PENDET;
+
+ reg |= AT91_ADC_PENDBC_(st->ts_pendbc) & AT91_ADC_PENDBC;
+ at91_adc_writel(st, AT91_ADC_MR, reg);
+
+ reg = AT91_ADC_TSR_SHTIM_(TOUCH_SHTIM) & AT91_ADC_TSR_SHTIM;
+ at91_adc_writel(st, AT91_ADC_TSR, reg);
+
+ st->ts_sample_period_val = round_up((TOUCH_SAMPLE_PERIOD_US_RL *
+ adc_clk_khz / 1000) - 1, 1);
+
+ return 0;
}
+ if (st->touchscreen_type == ATMEL_ADC_TOUCHSCREEN_4WIRE)
+ reg = AT91_ADC_TSMR_TSMODE_4WIRE_PRESS;
+ else
+ reg = AT91_ADC_TSMR_TSMODE_5WIRE;
+
+ reg |= AT91_ADC_TSMR_TSAV_(st->caps->ts_filter_average)
+ & AT91_ADC_TSMR_TSAV;
+ reg |= AT91_ADC_TSMR_PENDBC_(st->ts_pendbc) & AT91_ADC_TSMR_PENDBC;
+ reg |= AT91_ADC_TSMR_NOTSDMA;
+ reg |= AT91_ADC_TSMR_PENDET_ENA;
+ reg |= 0x03 << 8; /* TSFREQ, needs to be bigger than TSAV */
+
+ at91_adc_writel(st, AT91_ADC_TSMR, reg);
+
/* Change adc internal resistor value for better pen detection,
* default value is 100 kOhm.
* 0 = 200 kOhm, 1 = 150 kOhm, 2 = 100 kOhm, 3 = 50 kOhm
@@ -845,7 +1055,7 @@ static int at91_ts_hw_init(struct at91_adc_state *st, u32 adc_clk_khz)
at91_adc_writel(st, AT91_ADC_ACR, st->caps->ts_pen_detect_sensitivity
& AT91_ADC_ACR_PENDETSENS);
- /* Sample Peroid Time = (TRGPER + 1) / ADCClock */
+ /* Sample Period Time = (TRGPER + 1) / ADCClock */
st->ts_sample_period_val = round_up((TOUCH_SAMPLE_PERIOD_US *
adc_clk_khz / 1000) - 1, 1);
@@ -874,18 +1084,38 @@ static int at91_ts_register(struct at91_adc_state *st,
__set_bit(EV_ABS, input->evbit);
__set_bit(EV_KEY, input->evbit);
__set_bit(BTN_TOUCH, input->keybit);
- input_set_abs_params(input, ABS_X, 0, (1 << MAX_POS_BITS) - 1, 0, 0);
- input_set_abs_params(input, ABS_Y, 0, (1 << MAX_POS_BITS) - 1, 0, 0);
- input_set_abs_params(input, ABS_PRESSURE, 0, 0xffffff, 0, 0);
+ if (st->caps->has_tsmr) {
+ input_set_abs_params(input, ABS_X, 0, (1 << MAX_POS_BITS) - 1,
+ 0, 0);
+ input_set_abs_params(input, ABS_Y, 0, (1 << MAX_POS_BITS) - 1,
+ 0, 0);
+ input_set_abs_params(input, ABS_PRESSURE, 0, 0xffffff, 0, 0);
+ } else {
+ if (st->touchscreen_type != ATMEL_ADC_TOUCHSCREEN_4WIRE) {
+ dev_err(&pdev->dev,
+ "This touchscreen controller only support 4 wires\n");
+ ret = -EINVAL;
+ goto err;
+ }
+
+ input_set_abs_params(input, ABS_X, 0, (1 << MAX_RLPOS_BITS) - 1,
+ 0, 0);
+ input_set_abs_params(input, ABS_Y, 0, (1 << MAX_RLPOS_BITS) - 1,
+ 0, 0);
+ }
st->ts_input = input;
input_set_drvdata(input, st);
ret = input_register_device(input);
if (ret)
- input_free_device(st->ts_input);
+ goto err;
return ret;
+
+err:
+ input_free_device(st->ts_input);
+ return ret;
}
static void at91_ts_unregister(struct at91_adc_state *st)
@@ -943,11 +1173,13 @@ static int at91_adc_probe(struct platform_device *pdev)
*/
at91_adc_writel(st, AT91_ADC_CR, AT91_ADC_SWRST);
at91_adc_writel(st, AT91_ADC_IDR, 0xFFFFFFFF);
- ret = request_irq(st->irq,
- at91_adc_interrupt,
- 0,
- pdev->dev.driver->name,
- idev);
+
+ if (st->caps->has_tsmr)
+ ret = request_irq(st->irq, at91_adc_9x5_interrupt, 0,
+ pdev->dev.driver->name, idev);
+ else
+ ret = request_irq(st->irq, at91_adc_rl_interrupt, 0,
+ pdev->dev.driver->name, idev);
if (ret) {
dev_err(&pdev->dev, "Failed to allocate IRQ.\n");
return ret;
@@ -1051,12 +1283,6 @@ static int at91_adc_probe(struct platform_device *pdev)
goto error_disable_adc_clk;
}
} else {
- if (!st->caps->has_tsmr) {
- dev_err(&pdev->dev, "We don't support non-TSMR adc\n");
- ret = -ENODEV;
- goto error_disable_adc_clk;
- }
-
ret = at91_ts_register(st, pdev);
if (ret)
goto error_disable_adc_clk;
@@ -1120,6 +1346,20 @@ static struct at91_adc_caps at91sam9260_caps = {
},
};
+static struct at91_adc_caps at91sam9rl_caps = {
+ .has_ts = true,
+ .calc_startup_ticks = calc_startup_ticks_9260, /* same as 9260 */
+ .num_channels = 6,
+ .registers = {
+ .channel_base = AT91_ADC_CHR(0),
+ .drdy_mask = AT91_ADC_DRDY,
+ .status_register = AT91_ADC_SR,
+ .trigger_register = AT91_ADC_TRGR_9G45,
+ .mr_prescal_mask = AT91_ADC_PRESCAL_9260,
+ .mr_startup_mask = AT91_ADC_STARTUP_9G45,
+ },
+};
+
static struct at91_adc_caps at91sam9g45_caps = {
.has_ts = true,
.calc_startup_ticks = calc_startup_ticks_9260, /* same as 9260 */
@@ -1154,6 +1394,7 @@ static struct at91_adc_caps at91sam9x5_caps = {
static const struct of_device_id at91_adc_dt_ids[] = {
{ .compatible = "atmel,at91sam9260-adc", .data = &at91sam9260_caps },
+ { .compatible = "atmel,at91sam9rl-adc", .data = &at91sam9rl_caps },
{ .compatible = "atmel,at91sam9g45-adc", .data = &at91sam9g45_caps },
{ .compatible = "atmel,at91sam9x5-adc", .data = &at91sam9x5_caps },
{},
@@ -1165,6 +1406,9 @@ static const struct platform_device_id at91_adc_ids[] = {
.name = "at91sam9260-adc",
.driver_data = (unsigned long)&at91sam9260_caps,
}, {
+ .name = "at91sam9rl-adc",
+ .driver_data = (unsigned long)&at91sam9rl_caps,
+ }, {
.name = "at91sam9g45-adc",
.driver_data = (unsigned long)&at91sam9g45_caps,
}, {
diff --git a/drivers/iio/adc/exynos_adc.c b/drivers/iio/adc/exynos_adc.c
index d325aeafe5cb..010578f1d762 100644
--- a/drivers/iio/adc/exynos_adc.c
+++ b/drivers/iio/adc/exynos_adc.c
@@ -351,7 +351,7 @@ static int exynos_adc_probe(struct platform_device *pdev)
exynos_adc_hw_init(info);
- ret = of_platform_populate(np, exynos_adc_match, NULL, &pdev->dev);
+ ret = of_platform_populate(np, exynos_adc_match, NULL, &indio_dev->dev);
if (ret < 0) {
dev_err(&pdev->dev, "failed adding child nodes\n");
goto err_of_populate;
@@ -360,7 +360,7 @@ static int exynos_adc_probe(struct platform_device *pdev)
return 0;
err_of_populate:
- device_for_each_child(&pdev->dev, NULL,
+ device_for_each_child(&indio_dev->dev, NULL,
exynos_adc_remove_devices);
iio_device_unregister(indio_dev);
err_irq:
@@ -378,7 +378,7 @@ static int exynos_adc_remove(struct platform_device *pdev)
struct iio_dev *indio_dev = platform_get_drvdata(pdev);
struct exynos_adc *info = iio_priv(indio_dev);
- device_for_each_child(&pdev->dev, NULL,
+ device_for_each_child(&indio_dev->dev, NULL,
exynos_adc_remove_devices);
iio_device_unregister(indio_dev);
free_irq(info->irq, info);
diff --git a/drivers/iio/adc/men_z188_adc.c b/drivers/iio/adc/men_z188_adc.c
index 6989c16aec2b..b58d6302521f 100644
--- a/drivers/iio/adc/men_z188_adc.c
+++ b/drivers/iio/adc/men_z188_adc.c
@@ -121,8 +121,8 @@ static int men_z188_probe(struct mcb_device *dev,
indio_dev->num_channels = ARRAY_SIZE(z188_adc_iio_channels);
mem = mcb_request_mem(dev, "z188-adc");
- if (!mem)
- return -ENOMEM;
+ if (IS_ERR(mem))
+ return PTR_ERR(mem);
adc->base = ioremap(mem->start, resource_size(mem));
if (adc->base == NULL)
diff --git a/drivers/iio/adc/twl4030-madc.c b/drivers/iio/adc/twl4030-madc.c
index 7de1c4c87942..eb86786e698e 100644
--- a/drivers/iio/adc/twl4030-madc.c
+++ b/drivers/iio/adc/twl4030-madc.c
@@ -645,6 +645,7 @@ int twl4030_get_madc_conversion(int channel_no)
req.channels = (1 << channel_no);
req.method = TWL4030_MADC_SW2;
req.active = 0;
+ req.raw = 0;
req.func_cb = NULL;
ret = twl4030_madc_conversion(&req);
if (ret < 0)
diff --git a/drivers/iio/common/hid-sensors/hid-sensor-trigger.c b/drivers/iio/common/hid-sensors/hid-sensor-trigger.c
index 73282cee0c81..a3109a6f4d86 100644
--- a/drivers/iio/common/hid-sensors/hid-sensor-trigger.c
+++ b/drivers/iio/common/hid-sensors/hid-sensor-trigger.c
@@ -75,6 +75,9 @@ int hid_sensor_power_state(struct hid_sensor_common *st, bool state)
(s32)report_val);
}
+ sensor_hub_get_feature(st->hsdev, st->power_state.report_id,
+ st->power_state.index,
+ &state_val);
return 0;
}
EXPORT_SYMBOL(hid_sensor_power_state);
diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
index af287bf71915..0c6517c94a9d 100644
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
@@ -660,6 +660,7 @@ static int inv_mpu_probe(struct i2c_client *client,
{
struct inv_mpu6050_state *st;
struct iio_dev *indio_dev;
+ struct inv_mpu6050_platform_data *pdata;
int result;
if (!i2c_check_functionality(client->adapter,
@@ -672,8 +673,10 @@ static int inv_mpu_probe(struct i2c_client *client,
st = iio_priv(indio_dev);
st->client = client;
- st->plat_data = *(struct inv_mpu6050_platform_data
- *)dev_get_platdata(&client->dev);
+ pdata = (struct inv_mpu6050_platform_data
+ *)dev_get_platdata(&client->dev);
+ if (pdata)
+ st->plat_data = *pdata;
/* power is turned on inside check chip type*/
result = inv_check_and_setup_chip(st, id);
if (result)
diff --git a/drivers/iio/magnetometer/ak8975.c b/drivers/iio/magnetometer/ak8975.c
index a29592cae301..a2357921d761 100644
--- a/drivers/iio/magnetometer/ak8975.c
+++ b/drivers/iio/magnetometer/ak8975.c
@@ -373,8 +373,6 @@ static int ak8975_read_axis(struct iio_dev *indio_dev, int index, int *val)
{
struct ak8975_data *data = iio_priv(indio_dev);
struct i2c_client *client = data->client;
- u16 meas_reg;
- s16 raw;
int ret;
mutex_lock(&data->lock);
@@ -422,16 +420,11 @@ static int ak8975_read_axis(struct iio_dev *indio_dev, int index, int *val)
dev_err(&client->dev, "Read axis data fails\n");
goto exit;
}
- meas_reg = ret;
mutex_unlock(&data->lock);
- /* Endian conversion of the measured values. */
- raw = (s16) (le16_to_cpu(meas_reg));
-
/* Clamp to valid range. */
- raw = clamp_t(s16, raw, -4096, 4095);
- *val = raw;
+ *val = clamp_t(s16, ret, -4096, 4095);
return IIO_VAL_INT;
exit:
diff --git a/drivers/iio/pressure/mpl3115.c b/drivers/iio/pressure/mpl3115.c
index ba6d0c520e63..01b2e0b18878 100644
--- a/drivers/iio/pressure/mpl3115.c
+++ b/drivers/iio/pressure/mpl3115.c
@@ -98,7 +98,7 @@ static int mpl3115_read_raw(struct iio_dev *indio_dev,
mutex_unlock(&data->lock);
if (ret < 0)
return ret;
- *val = sign_extend32(be32_to_cpu(tmp) >> 12, 23);
+ *val = be32_to_cpu(tmp) >> 12;
return IIO_VAL_INT;
case IIO_TEMP: /* in 0.0625 celsius / LSB */
mutex_lock(&data->lock);
@@ -112,7 +112,7 @@ static int mpl3115_read_raw(struct iio_dev *indio_dev,
mutex_unlock(&data->lock);
if (ret < 0)
return ret;
- *val = sign_extend32(be32_to_cpu(tmp) >> 20, 15);
+ *val = sign_extend32(be32_to_cpu(tmp) >> 20, 11);
return IIO_VAL_INT;
default:
return -EINVAL;
@@ -185,7 +185,7 @@ static const struct iio_chan_spec mpl3115_channels[] = {
BIT(IIO_CHAN_INFO_SCALE),
.scan_index = 0,
.scan_type = {
- .sign = 's',
+ .sign = 'u',
.realbits = 20,
.storagebits = 32,
.shift = 12,
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-23 23:19:34 +0000