2nd set of IIO fixes for the 6.4 cycle.

Given how late this pull request is, I'm expecting these to get queued
 up for the 6.5 merge window.
 
 - adi,ad7192
   * Fix a null pointer as spi_set_drvdata() is no longer called.
   * Fix wrong check prior to using internal clock.
   * Fix dt-binding to make it clear the voltage reference is required.
 - adi,ad74413
   * DIN_SINK should not be set for functions other than digital inputs.
     Enforce that in the driver.
 - amlogic,meson-saradc
   * Fix clock divider mask length - affects only meson 8 family.
 - freescale,fxls8962af
   * Fix endian type and shift of channels to match with default device setup.
   * Narrow errata handling to FXLS8962AF only as doesn't affect other devices
     supported by this driver.
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Merge tag 'iio-fixes-for-6.4b' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-next

Jonathan writes:

2nd set of IIO fixes for the 6.4 cycle.

Given how late this pull request is, I'm expecting these to get queued
up for the 6.5 merge window.

- adi,ad7192
  * Fix a null pointer as spi_set_drvdata() is no longer called.
  * Fix wrong check prior to using internal clock.
  * Fix dt-binding to make it clear the voltage reference is required.
- adi,ad74413
  * DIN_SINK should not be set for functions other than digital inputs.
    Enforce that in the driver.
- amlogic,meson-saradc
  * Fix clock divider mask length - affects only meson 8 family.
- freescale,fxls8962af
  * Fix endian type and shift of channels to match with default device setup.
  * Narrow errata handling to FXLS8962AF only as doesn't affect other devices
    supported by this driver.

* tag 'iio-fixes-for-6.4b' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio:
  meson saradc: fix clock divider mask length
  iio: accel: fxls8962af: errata bug only applicable for FXLS8962AF
  iio: accel: fxls8962af: fixup buffer scan element type
  dt-bindings: iio: ad7192: Add mandatory reference voltage source
  iio: adc: ad7192: Fix internal/external clock selection
  iio: adc: ad7192: Fix null ad7192_state pointer access
  iio: addac: ad74413: don't set DIN_SINK for functions other than digital input

Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml

@@ -47,6 +47,9 @@ properties:
   avdd-supply:
     description: AVdd voltage supply
 
+  vref-supply:
+    description: VRef voltage supply
+
   adi,rejection-60-Hz-enable:
     description: |
       This bit enables a notch at 60 Hz when the first notch of the sinc
@@ -89,6 +92,7 @@ required:
   - interrupts
   - dvdd-supply
   - avdd-supply
+  - vref-supply
   - spi-cpol
   - spi-cpha
 
@@ -115,6 +119,7 @@ examples:
             interrupt-parent = <&gpio>;
             dvdd-supply = <&dvdd>;
             avdd-supply = <&avdd>;
+            vref-supply = <&vref>;
 
             adi,refin2-pins-enable;
             adi,rejection-60-Hz-enable;

drivers/iio/accel/fxls8962af-core.c

@@ -724,8 +724,7 @@ static const struct iio_event_spec fxls8962af_event[] = {
 		.sign = 's', \
 		.realbits = 12, \
 		.storagebits = 16, \
-		.shift = 4, \
-		.endianness = IIO_BE, \
+		.endianness = IIO_LE, \
 	}, \
 	.event_spec = fxls8962af_event, \
 	.num_event_specs = ARRAY_SIZE(fxls8962af_event), \
@@ -904,9 +903,10 @@ static int fxls8962af_fifo_transfer(struct fxls8962af_data *data,
 	int total_length = samples * sample_length;
 	int ret;
 
-	if (i2c_verify_client(dev))
+	if (i2c_verify_client(dev) &&
+	    data->chip_info->chip_id == FXLS8962AF_DEVICE_ID)
 		/*
-		 * Due to errata bug:
+		 * Due to errata bug (only applicable on fxls8962af):
 		 * E3: FIFO burst read operation error using I2C interface
 		 * We have to avoid burst reads on I2C..
 		 */

drivers/iio/adc/ad7192.c

@@ -367,7 +367,7 @@ static int ad7192_of_clock_select(struct ad7192_state *st)
 	clock_sel = AD7192_CLK_INT;
 
 	/* use internal clock */
-	if (st->mclk) {
+	if (!st->mclk) {
 		if (of_property_read_bool(np, "adi,int-clock-output-enable"))
 			clock_sel = AD7192_CLK_INT_CO;
 	} else {
@@ -380,9 +380,9 @@ static int ad7192_of_clock_select(struct ad7192_state *st)
 	return clock_sel;
 }
 
-static int ad7192_setup(struct ad7192_state *st, struct device_node *np)
+static int ad7192_setup(struct iio_dev *indio_dev, struct device_node *np)
 {
-	struct iio_dev *indio_dev = spi_get_drvdata(st->sd.spi);
+	struct ad7192_state *st = iio_priv(indio_dev);
 	bool rej60_en, refin2_en;
 	bool buf_en, bipolar, burnout_curr_en;
 	unsigned long long scale_uv;
@@ -1069,7 +1069,7 @@ static int ad7192_probe(struct spi_device *spi)
 		}
 	}
 
-	ret = ad7192_setup(st, spi->dev.of_node);
+	ret = ad7192_setup(indio_dev, spi->dev.of_node);
 	if (ret)
 		return ret;
 

drivers/iio/adc/meson_saradc.c

@@ -72,7 +72,7 @@
 	#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)
 

drivers/iio/addac/ad74413r.c

@@ -1317,13 +1317,14 @@ static int ad74413r_setup_gpios(struct ad74413r_state *st)
 		}
 
 		if (config->func == CH_FUNC_DIGITAL_INPUT_LOGIC ||
-		    config->func == CH_FUNC_DIGITAL_INPUT_LOOP_POWER)
+		    config->func == CH_FUNC_DIGITAL_INPUT_LOOP_POWER) {
 			st->comp_gpio_offsets[comp_gpio_i++] = i;
 
-		strength = config->drive_strength;
-		ret = ad74413r_set_comp_drive_strength(st, i, strength);
-		if (ret)
-			return ret;
+			strength = config->drive_strength;
+			ret = ad74413r_set_comp_drive_strength(st, i, strength);
+			if (ret)
+				return ret;
+		}
 
 		ret = ad74413r_set_gpo_config(st, i, gpo_config);
 		if (ret)