Merge tag 'iio-for-5.20a' of https://git.kernel.org/pub/scm/linux/ker…

…nel/git/jic23/iio into char-misc-next Jonathan writes: IIO new device support, features and minor fixes for 5.20 Several on-running cleanup efforts dominate this time, plus the DMA safety alignment issue identified due to improved understanding of the restrictions as a result of Catalin Marinas' efforts in that area. One immutable branch in here due to MFD and SPMI elements needed for the qcom-rradc driver. Device support * bmi088 - Add support for bmi085 (accelerometer part of IMU) - Add support for bmi090l (accelerometer part of IMU) * mcp4922 - Add support for single channel device MCP4921 * rzg2l-adc - Add compatible and minor tweaks to support RZ/G2UL ADC * sca3300 - Add support for scl3300 including refactoring driver to support multiple device types and cleanup noticed whilst working on driver. * spmi-rradc - New driver for Qualcomm SPMI Round Robin ADC including necessary additional utility functions in SPMI core and related MFD driver. * ti-dac55781 - Add compatible for DAC121C081 which is very similar to existing parts. Features * core - Warn on iio_trigger_get() on an unregistered IIO trigger. * bma400 - Triggered buffer support - Activity and step counting - Misc driver improvements such as devm and header ordering * cm32181 - Add PM support. * cros_ec - Sensor location support * sx9324 - Add precharge resistor setting - Add internal compensation resistor setting - Add CS idle/sleep mode. * sx9360 - Add precharge resistor setting * vl53l0x - Handle reset GPIO, regulator and relax handling of irq type. Cleanup and minor fixes: Treewide changes - Cleanup of error handling in remove functions in many drivers. - Update dt-binding maintainers for a number of ADI bindings. - Several sets of conversion of drivers from device tree specific to generic device properties. Includes fixing up various related header and Kconfig issues. - Drop include of of.h from iio.h and fix up drivers that need to include it directly. - More moves of clusters of drivers into appropriate IIO_XXX namespaces. - Tree wide fix of a long running bug around DMA safety requirements. IIO was using __cacheline_aligned to pad iio_priv() structures. This worked for a long time by coincidence, but correct alignment is ARCH_KMALLOC_MINALIGN. As there is activity around this area, introduce an IIO local IIO_DMA_MINALIGN to allow for changing it in one place rather than every driver in future. Note, there have been no reports of this bug in the wild, and it may not happen on any platforms supported by upstream, so no rush to backport these fixes. Other cleanup * core - Switch to ida_alloc()/free() - Drop unused iio_get_time_res() - Octal permissions and DEVICE_ATTR_* macros. - Cleanup bared unsigned usage. * MAINTAINERS - Add include/dt-bindings/iio/ to the main IIO entry. * ad5380 - Comment syntax fix. * ad74413r - Call to for_each_set_bit_from(), with from value as 0 replaced. * ad7768-1 - Drop explicit setting of INDIO_BUFFER_TRIGGERED as now done by the core. * adxl345 - Fix wrong address in dt-binding example. * adxl367 - Drop extra update of FIFO watermark. * at91-sama5d2 - Limit requested watermark to the hwfifo size. * bmg160, bme680 - Typos * cio-dac - Switch to iomap rather than direct use of ioports * kxsd9 - Replace CONFIG_PM guards with new PM macros that let the compiler cleanly remove the unused code and structures when !CONFIG_PM * lsm6dsx - Use new pm_sleep_ptr() and EXPORT_SIMPLE_DEV_PM_OPS(). Then move to Namespace. * meson_saradc - general cleanup. - Avoid attaching resources to iio_dev->dev - Use same struct device for all error messages - Convert to dev_err_probe() and use local struct device *dev to reduce code complexity. - Use devm_clk_get_optional() instead of hand rolling. - Use regmap_read_poll_timeout() instead of hand rolling. * mma7660 - Drop ACPI_PTR() use that is unhelpful. * mpu3050 - Stop exporting symbols not used outside of module - Switch to new DEFINE_RUNTIME_DEV_PM_OPS() macro and move to Namespace. * ping - Typo fix * qcom-spmi-rradc - Typo fix * sc27xx - Convert to generic struct u32_fract * srf08 - Drop a redundant check on !val * st_lsm6dsx - Limit the requested watermark to the hwfifo size. * stm32-adc - Use generic_handle_domain_irq() instead of opencoding. - Fix handling of ADC disable. * stm32-dac - Use str_enabled_disable() instead of open coding. * stx104 - Switch to iomap rather than direct use of ioports * tsc2046 - Drop explicit setting of INDIO_BUFFER_TRIGGERED as now done by the core. * tsl2563 - Replace flush_scheduled_work() with cancel_delayed_work_sync() - Replace cancel_delayed_work() with cancel_delayed_work_sync() * vl53l0x - Make the VDD regulator optional by allowing a dummy regulator. * tag 'iio-for-5.20a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (244 commits) iio: adc: xilinx-xadc: Drop duplicate NULL check in xadc_parse_dt() iio: adc: xilinx-xadc: Make use of device properties iio: light: cm32181: Add PM support iio: adc: ad778-1: do not explicity set INDIO_BUFFER_TRIGGERED mode iio: adc: ti-tsc2046: do not explicity set INDIO_BUFFER_TRIGGERED mode iio: adc: stm32-adc: disable adc before calibration iio: adc: stm32-adc: make safe adc disable iio: dac: ad5380: align '*' each line and drop unneeded blank line iio: adc: qcom-spmi-rradc: Fix spelling mistake "coherrency" -> "coherency" iio: Don't use bare "unsigned" dt-bindings: iio: dac: mcp4922: expand for mcp4921 support iio: dac: mcp4922: add support to mcp4921 iio: chemical: sps30: Move symbol exports into IIO_SPS30 namespace iio: pressure: bmp280: Move symbol exports to IIO_BMP280 namespace iio: imu: bmi160: Move exported symbols to IIO_BMI160 namespace iio: adc: stm32-adc: Use generic_handle_domain_irq() proximity: vl53l0x: Make VDD regulator actually optional MAINTAINERS: add include/dt-bindings/iio to IIO SUBSYSTEM AND DRIVERS dt-bindings: iio/accel: Fix adi,adxl345/6 example I2C address iio: gyro: bmg160: Fix typo in comment ...
mariux64 · Jul 14, 2022 · 2a3c8f8 · 2a3c8f8
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diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
@@ -79,6 +79,11 @@ Description:
 		* "accel-base"
 		* "accel-display"
 
+		For devices where an accelerometer is housed in the swivel camera subassembly
+		(for AR application), the following standardized label is used:
+
+		* "accel-camera"
+
 What:		/sys/bus/iio/devices/iio:deviceX/current_timestamp_clock
 KernelVersion:	4.5
 Contact:	linux-iio@vger.kernel.org

diff --git a/Documentation/devicetree/bindings/iio/accel/adi,adis16240.yaml b/Documentation/devicetree/bindings/iio/accel/adi,adis16240.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
 title: ADIS16240 Programmable Impact Sensor and Recorder driver
 
 maintainers:
-  - Alexandru Ardelean <alexandru.ardelean@analog.com>
+  - Alexandru Tachici <alexandru.tachici@analog.com>
 
 description: |
   ADIS16240 Programmable Impact Sensor and Recorder driver that supports

diff --git a/Documentation/devicetree/bindings/iio/accel/adi,adxl345.yaml b/Documentation/devicetree/bindings/iio/accel/adi,adxl345.yaml
@@ -55,7 +55,7 @@ examples:
         /* Example for a I2C device node */
         accelerometer@2a {
             compatible = "adi,adxl345";
-            reg = <0x53>;
+            reg = <0x2a>;
             interrupt-parent = <&gpio0>;
             interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
         };

diff --git a/Documentation/devicetree/bindings/iio/accel/bosch,bmi088.yaml b/Documentation/devicetree/bindings/iio/accel/bosch,bmi088.yaml
@@ -17,7 +17,9 @@ description: |
 properties:
   compatible:
     enum:
+      - bosch,bmi085-accel
       - bosch,bmi088-accel
+      - bosch,bmi090l-accel
 
   reg:
     maxItems: 1

diff --git a/Documentation/devicetree/bindings/iio/accel/murata,sca3300.yaml b/Documentation/devicetree/bindings/iio/accel/murata,sca3300.yaml
@@ -17,6 +17,7 @@ properties:
   compatible:
     enum:
       - murata,sca3300
+      - murata,scl3300
 
   reg:
     maxItems: 1

diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad9467.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad9467.yaml
@@ -8,7 +8,6 @@ title: Analog Devices AD9467 and similar High-Speed ADCs
 
 maintainers:
   - Michael Hennerich <michael.hennerich@analog.com>
-  - Alexandru Ardelean <alexandru.ardelean@analog.com>
 
 description: |
   The AD9467 and the parts similar with it, are high-speed analog-to-digital

diff --git a/Documentation/devicetree/bindings/iio/adc/adi,axi-adc.yaml b/Documentation/devicetree/bindings/iio/adc/adi,axi-adc.yaml
@@ -8,7 +8,6 @@ title: Analog Devices AXI ADC IP core
 
 maintainers:
   - Michael Hennerich <michael.hennerich@analog.com>
-  - Alexandru Ardelean <alexandru.ardelean@analog.com>
 
 description: |
   Analog Devices Generic AXI ADC IP core for interfacing an ADC device

diff --git a/Documentation/devicetree/bindings/iio/adc/qcom,spmi-rradc.yaml b/Documentation/devicetree/bindings/iio/adc/qcom,spmi-rradc.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/qcom,spmi-rradc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm's SPMI PMIC Round Robin ADC
+
+maintainers:
+  - Caleb Connolly <caleb.connolly@linaro.org>
+
+description: |
+  The Qualcomm SPMI Round Robin ADC (RRADC) provides interface to clients to
+  read the voltage, current and temperature for supported peripherals such as
+  the battery thermistor die temperature, charger temperature, USB and DC input
+  voltage / current and battery ID resistor.
+
+properties:
+  compatible:
+    enum:
+      - qcom,pmi8998-rradc
+      - qcom,pm660-rradc
+
+  reg:
+    maxItems: 1
+
+  qcom,batt-id-delay-ms:
+    description: Sets the hardware settling time for the battery ID resistor.
+    enum: [0, 1, 4, 12, 20, 40, 60, 80]
+
+  "#io-channel-cells":
+    const: 1
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    pmic {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      pmic_rradc: adc@4500 {
+          compatible = "qcom,pmi8998-rradc";
+          reg = <0x4500>;
+          #io-channel-cells  = <1>;
+      };
+    };
diff --git a/Documentation/devicetree/bindings/iio/adc/renesas,rzg2l-adc.yaml b/Documentation/devicetree/bindings/iio/adc/renesas,rzg2l-adc.yaml
@@ -19,6 +19,7 @@ properties:
   compatible:
     items:
       - enum:
+          - renesas,r9a07g043-adc   # RZ/G2UL
           - renesas,r9a07g044-adc   # RZ/G2L
           - renesas,r9a07g054-adc   # RZ/V2L
       - const: renesas,rzg2l-adc
@@ -76,16 +77,35 @@ patternProperties:
     properties:
       reg:
         description: |
-          The channel number. It can have up to 8 channels numbered from 0 to 7.
-        items:
-          - minimum: 0
-            maximum: 7
+          The channel number.
 
     required:
       - reg
 
     additionalProperties: false
 
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: renesas,r9a07g043-adc
+    then:
+      patternProperties:
+        "^channel@[2-7]$": false
+        "^channel@[0-1]$":
+          properties:
+            reg:
+              minimum: 0
+              maximum: 1
+    else:
+      patternProperties:
+        "^channel@[0-7]$":
+          properties:
+            reg:
+              minimum: 0
+              maximum: 7
+
 additionalProperties: false
 
 examples:

diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5770r.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5770r.yaml
@@ -8,7 +8,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
 title: Analog Devices AD5770R DAC device driver
 
 maintainers:
-  - Mircea Caprioru <mircea.caprioru@analog.com>
+  - Alexandru Tachici <alexandru.tachici@analog.com>
 
 description: |
   Bindings for the Analog Devices AD5770R current DAC device. Datasheet can be

diff --git a/Documentation/devicetree/bindings/iio/dac/microchip,mcp4922.yaml b/Documentation/devicetree/bindings/iio/dac/microchip,mcp4922.yaml
@@ -15,6 +15,7 @@ properties:
     enum:
       - microchip,mcp4902
       - microchip,mcp4912
+      - microchip,mcp4921
       - microchip,mcp4922
 
   reg:

diff --git a/Documentation/devicetree/bindings/iio/dac/ti,dac5571.yaml b/Documentation/devicetree/bindings/iio/dac/ti,dac5571.yaml
@@ -21,6 +21,7 @@ properties:
       - ti,dac5573
       - ti,dac6573
       - ti,dac7573
+      - ti,dac121c081
 
   reg:
     maxItems: 1

diff --git a/Documentation/devicetree/bindings/iio/imu/adi,adis16480.yaml b/Documentation/devicetree/bindings/iio/imu/adi,adis16480.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
 title: Analog Devices ADIS16480 and similar IMUs
 
 maintainers:
-  - Alexandru Ardelean <alexandru.ardelean@analog.com>
+  - Alexandru Tachici <alexandru.tachici@analog.com>
 
 properties:
   compatible:

diff --git a/Documentation/devicetree/bindings/iio/proximity/semtech,sx9324.yaml b/Documentation/devicetree/bindings/iio/proximity/semtech,sx9324.yaml
@@ -126,6 +126,42 @@ properties:
       UINT_MAX (4294967295) represents infinite. Other values
       represent 1-1/N.
 
+  semtech,cs-idle-sleep:
+    description:
+      State of CS pins during sleep mode and idle time.
+    enum:
+      - hi-z
+      - gnd
+      - vdd
+
+  semtech,int-comp-resistor:
+    description:
+      Internal resistor setting for compensation.
+    enum:
+      - lowest
+      - low
+      - high
+      - highest
+
+  semtech,input-precharge-resistor-ohms:
+    default: 4000
+    multipleOf: 2000
+    minimum: 0
+    maximum: 30000
+    description:
+      Pre-charge input resistance in Ohm.
+
+  semtech,input-analog-gain:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    minimum: 0
+    maximum: 3
+    description: |
+      Defines the input antenna analog gain
+      0: x1.247
+      1: x1 (default)
+      2: x0.768
+      3: x0.552
+
 required:
   - compatible
   - reg
@@ -157,5 +193,8 @@ examples:
         semtech,ph01-proxraw-strength = <2>;
         semtech,ph23-proxraw-strength = <2>;
         semtech,avg-pos-strength = <64>;
+        semtech,int-comp-resistor = "lowest";
+        semtech,input-precharge-resistor-ohms = <2000>;
+        semtech,cs-idle-sleep = "gnd";
       };
     };
diff --git a/Documentation/devicetree/bindings/iio/proximity/semtech,sx9360.yaml b/Documentation/devicetree/bindings/iio/proximity/semtech,sx9360.yaml
@@ -61,6 +61,14 @@ properties:
       UINT_MAX (4294967295) represents infinite. Other values
       represent 1-1/N.
 
+  semtech,input-precharge-resistor-ohms:
+    default: 0
+    multipleOf: 2000
+    minimum: 0
+    maximum: 30000
+    description:
+      Pre-charge input resistance in Ohm.
+
 required:
   - compatible
   - reg
@@ -85,5 +93,6 @@ examples:
         semtech,resolution = <256>;
         semtech,proxraw-strength = <2>;
         semtech,avg-pos-strength = <64>;
+        semtech,input-precharge-resistor-ohms = <4000>;
       };
     };
diff --git a/Documentation/devicetree/bindings/iio/proximity/st,vl53l0x.yaml b/Documentation/devicetree/bindings/iio/proximity/st,vl53l0x.yaml
@@ -19,6 +19,11 @@ properties:
   interrupts:
     maxItems: 1
 
+  reset-gpios:
+    maxItems: 1
+
+  vdd-supply: true
+
 required:
   - compatible
   - reg

diff --git a/MAINTAINERS b/MAINTAINERS
@@ -9724,6 +9724,7 @@ F:	Documentation/ABI/testing/sysfs-bus-iio*
 F:	Documentation/devicetree/bindings/iio/
 F:	drivers/iio/
 F:	drivers/staging/iio/
+F:	include/dt-bindings/iio/
 F:	include/linux/iio/
 F:	tools/iio/
 

diff --git a/drivers/iio/accel/Kconfig b/drivers/iio/accel/Kconfig
@@ -204,6 +204,8 @@ config BMA220
 config BMA400
 	tristate "Bosch BMA400 3-Axis Accelerometer Driver"
 	select REGMAP
+	select IIO_BUFFER
+	select IIO_TRIGGERED_BUFFER
 	select BMA400_I2C if I2C
 	select BMA400_SPI if SPI
 	help

diff --git a/drivers/iio/accel/adxl313_core.c b/drivers/iio/accel/adxl313_core.c
@@ -46,7 +46,7 @@ EXPORT_SYMBOL_NS_GPL(adxl313_writable_regs_table, IIO_ADXL313);
 struct adxl313_data {
 	struct regmap	*regmap;
 	struct mutex	lock; /* lock to protect transf_buf */
-	__le16		transf_buf ____cacheline_aligned;
+	__le16		transf_buf __aligned(IIO_DMA_MINALIGN);
 };
 
 static const int adxl313_odr_freqs[][2] = {

diff --git a/drivers/iio/accel/adxl355_core.c b/drivers/iio/accel/adxl355_core.c
@@ -177,7 +177,7 @@ struct adxl355_data {
 			u8 buf[14];
 			s64 ts;
 		} buffer;
-	} ____cacheline_aligned;
+	} __aligned(IIO_DMA_MINALIGN);
 };
 
 static int adxl355_set_op_mode(struct adxl355_data *data,