Merge tag 'v4.15-rc1' into next-seccomp

Linux 4.15-rc1

15 files changed, 138 insertions, 40 deletions

diff --git a/include/linux/iio/adc/ad_sigma_delta.h b/include/linux/iio/adc/ad_sigma_delta.h
index 5ba430cc9a87..1fc7abd28b0b 100644
--- a/include/linux/iio/adc/ad_sigma_delta.h
+++ b/include/linux/iio/adc/ad_sigma_delta.h
@@ -111,6 +111,9 @@ int ad_sd_write_reg(struct ad_sigma_delta *sigma_delta, unsigned int reg,
 int ad_sd_read_reg(struct ad_sigma_delta *sigma_delta, unsigned int reg,
 	unsigned int size, unsigned int *val);
 
+int ad_sd_reset(struct ad_sigma_delta *sigma_delta,
+	unsigned int reset_length);
+
 int ad_sigma_delta_single_conversion(struct iio_dev *indio_dev,
 	const struct iio_chan_spec *chan, int *val);
 int ad_sd_calibrate_all(struct ad_sigma_delta *sigma_delta,
diff --git a/include/linux/iio/buffer_impl.h b/include/linux/iio/buffer_impl.h
index 8daba198fafa..b9e22b7e2f28 100644
--- a/include/linux/iio/buffer_impl.h
+++ b/include/linux/iio/buffer_impl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _IIO_BUFFER_GENERIC_IMPL_H_
 #define _IIO_BUFFER_GENERIC_IMPL_H_
 #include <linux/sysfs.h>
diff --git a/include/linux/iio/common/st_sensors.h b/include/linux/iio/common/st_sensors.h
index 497f2b3a5a62..f9bd6e8ab138 100644
--- a/include/linux/iio/common/st_sensors.h
+++ b/include/linux/iio/common/st_sensors.h
@@ -105,6 +105,11 @@ struct st_sensor_fullscale {
 	struct st_sensor_fullscale_avl fs_avl[ST_SENSORS_FULLSCALE_AVL_MAX];
 };
 
+struct st_sensor_sim {
+	u8 addr;
+	u8 value;
+};
+
 /**
  * struct st_sensor_bdu - ST sensor device block data update
  * @addr: address of the register.
@@ -126,28 +131,39 @@ struct st_sensor_das {
 };
 
 /**
+ * struct st_sensor_int_drdy - ST sensor device drdy line parameters
+ * @addr: address of INT drdy register.
+ * @mask: mask to enable drdy line.
+ * @addr_od: address to enable/disable Open Drain on the INT line.
+ * @mask_od: mask to enable/disable Open Drain on the INT line.
+ */
+struct st_sensor_int_drdy {
+	u8 addr;
+	u8 mask;
+	u8 addr_od;
+	u8 mask_od;
+};
+
+/**
  * struct st_sensor_data_ready_irq - ST sensor device data-ready interrupt
- * @addr: address of the register.
- * @mask_int1: mask to enable/disable IRQ on INT1 pin.
- * @mask_int2: mask to enable/disable IRQ on INT2 pin.
+ * struct int1 - data-ready configuration register for INT1 pin.
+ * struct int2 - data-ready configuration register for INT2 pin.
  * @addr_ihl: address to enable/disable active low on the INT lines.
  * @mask_ihl: mask to enable/disable active low on the INT lines.
- * @addr_od: address to enable/disable Open Drain on the INT lines.
- * @mask_od: mask to enable/disable Open Drain on the INT lines.
- * @addr_stat_drdy: address to read status of DRDY (data ready) interrupt
+ * struct stat_drdy - status register of DRDY (data ready) interrupt.
  * struct ig1 - represents the Interrupt Generator 1 of sensors.
  * @en_addr: address of the enable ig1 register.
  * @en_mask: mask to write the on/off value for enable.
  */
 struct st_sensor_data_ready_irq {
-	u8 addr;
-	u8 mask_int1;
-	u8 mask_int2;
+	struct st_sensor_int_drdy int1;
+	struct st_sensor_int_drdy int2;
 	u8 addr_ihl;
 	u8 mask_ihl;
-	u8 addr_od;
-	u8 mask_od;
-	u8 addr_stat_drdy;
+	struct {
+		u8 addr;
+		u8 mask;
+	} stat_drdy;
 	struct {
 		u8 en_addr;
 		u8 en_mask;
@@ -197,6 +213,7 @@ struct st_sensor_transfer_function {
  * @bdu: Block data update register.
  * @das: Data Alignment Selection register.
  * @drdy_irq: Data ready register of the sensor.
+ * @sim: SPI serial interface mode register of the sensor.
  * @multi_read_bit: Use or not particular bit for [I2C/SPI] multi-read.
  * @bootime: samples to discard when sensor passing from power-down to power-up.
  */
@@ -213,6 +230,7 @@ struct st_sensor_settings {
 	struct st_sensor_bdu bdu;
 	struct st_sensor_das das;
 	struct st_sensor_data_ready_irq drdy_irq;
+	struct st_sensor_sim sim;
 	bool multi_read_bit;
 	unsigned int bootime;
 };
@@ -325,4 +343,16 @@ ssize_t st_sensors_sysfs_sampling_frequency_avail(struct device *dev,
 ssize_t st_sensors_sysfs_scale_avail(struct device *dev,
 				struct device_attribute *attr, char *buf);
 
+#ifdef CONFIG_OF
+void st_sensors_of_name_probe(struct device *dev,
+			      const struct of_device_id *match,
+			      char *name, int len);
+#else
+static inline void st_sensors_of_name_probe(struct device *dev,
+					    const struct of_device_id *match,
+					    char *name, int len)
+{
+}
+#endif
+
 #endif /* ST_SENSORS_H */
diff --git a/include/linux/iio/common/st_sensors_i2c.h b/include/linux/iio/common/st_sensors_i2c.h
index 254de3c7dde8..0a2c25e06d1f 100644
--- a/include/linux/iio/common/st_sensors_i2c.h
+++ b/include/linux/iio/common/st_sensors_i2c.h
@@ -18,16 +18,6 @@
 void st_sensors_i2c_configure(struct iio_dev *indio_dev,
 		struct i2c_client *client, struct st_sensor_data *sdata);
 
-#ifdef CONFIG_OF
-void st_sensors_of_i2c_probe(struct i2c_client *client,
-			     const struct of_device_id *match);
-#else
-static inline void st_sensors_of_i2c_probe(struct i2c_client *client,
-					   const struct of_device_id *match)
-{
-}
-#endif
-
 #ifdef CONFIG_ACPI
 int st_sensors_match_acpi_device(struct device *dev);
 #else
diff --git a/include/linux/iio/dac/ad5421.h b/include/linux/iio/dac/ad5421.h
index 8fd8f057a890..d8ee9a7f8a6a 100644
--- a/include/linux/iio/dac/ad5421.h
+++ b/include/linux/iio/dac/ad5421.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __IIO_DAC_AD5421_H__
 #define __IIO_DAC_AD5421_H__
 
diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h
index d68bec297a45..20b61347ea58 100644
--- a/include/linux/iio/iio.h
+++ b/include/linux/iio/iio.h
@@ -365,12 +365,9 @@ unsigned int iio_get_time_res(const struct iio_dev *indio_dev);
 #define INDIO_MAX_RAW_ELEMENTS		4
 
 struct iio_trigger; /* forward declaration */
-struct iio_dev;
 
 /**
  * struct iio_info - constant information about device
- * @driver_module:	module structure used to ensure correct
- *			ownership of chrdevs etc
  * @event_attrs:	event control attributes
  * @attrs:		general purpose device attributes
  * @read_raw:		function to request a value from the device.
@@ -425,7 +422,6 @@ struct iio_dev;
  *			were flushed and there was an error.
  **/
 struct iio_info {
-	struct module			*driver_module;
 	const struct attribute_group	*event_attrs;
 	const struct attribute_group	*attrs;
 
@@ -518,6 +514,7 @@ struct iio_buffer_setup_ops {
 /**
  * struct iio_dev - industrial I/O device
  * @id:			[INTERN] used to identify device internally
+ * @driver_module:	[INTERN] used to make it harder to undercut users
  * @modes:		[DRIVER] operating modes supported by device
  * @currentmode:	[DRIVER] current operating mode
  * @dev:		[DRIVER] device structure, should be assigned a parent
@@ -535,7 +532,7 @@ struct iio_buffer_setup_ops {
  * @scan_timestamp:	[INTERN] set if any buffers have requested timestamp
  * @scan_index_timestamp:[INTERN] cache of the index to the timestamp
  * @trig:		[INTERN] current device trigger (buffer modes)
- * @trig_readonly	[INTERN] mark the current trigger immutable
+ * @trig_readonly:	[INTERN] mark the current trigger immutable
  * @pollfunc:		[DRIVER] function run on trigger being received
  * @pollfunc_event:	[DRIVER] function run on events trigger being received
  * @channels:		[DRIVER] channel specification structure table
@@ -558,6 +555,7 @@ struct iio_buffer_setup_ops {
  */
 struct iio_dev {
 	int				id;
+	struct module			*driver_module;
 
 	int				modes;
 	int				currentmode;
@@ -604,9 +602,34 @@ struct iio_dev {
 
 const struct iio_chan_spec
 *iio_find_channel_from_si(struct iio_dev *indio_dev, int si);
-int iio_device_register(struct iio_dev *indio_dev);
+/**
+ * iio_device_register() - register a device with the IIO subsystem
+ * @indio_dev:		Device structure filled by the device driver
+ **/
+#define iio_device_register(iio_dev) \
+	__iio_device_register((iio_dev), THIS_MODULE)
+int __iio_device_register(struct iio_dev *indio_dev, struct module *this_mod);
 void iio_device_unregister(struct iio_dev *indio_dev);
-int devm_iio_device_register(struct device *dev, struct iio_dev *indio_dev);
+/**
+ * devm_iio_device_register - Resource-managed iio_device_register()
+ * @dev:	Device to allocate iio_dev for
+ * @indio_dev:	Device structure filled by the device driver
+ *
+ * Managed iio_device_register.  The IIO device registered with this
+ * function is automatically unregistered on driver detach. This function
+ * calls iio_device_register() internally. Refer to that function for more
+ * information.
+ *
+ * If an iio_dev registered with this function needs to be unregistered
+ * separately, devm_iio_device_unregister() must be used.
+ *
+ * RETURNS:
+ * 0 on success, negative error number on failure.
+ */
+#define devm_iio_device_register(dev, indio_dev) \
+	__devm_iio_device_register((dev), (indio_dev), THIS_MODULE);
+int __devm_iio_device_register(struct device *dev, struct iio_dev *indio_dev,
+			       struct module *this_mod);
 void devm_iio_device_unregister(struct device *dev, struct iio_dev *indio_dev);
 int iio_push_event(struct iio_dev *indio_dev, u64 ev_code, s64 timestamp);
 int iio_device_claim_direct_mode(struct iio_dev *indio_dev);
diff --git a/include/linux/iio/kfifo_buf.h b/include/linux/iio/kfifo_buf.h
index 027cfa9c3703..764659e01b68 100644
--- a/include/linux/iio/kfifo_buf.h
+++ b/include/linux/iio/kfifo_buf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_IIO_KFIFO_BUF_H__
 #define __LINUX_IIO_KFIFO_BUF_H__
 
diff --git a/include/linux/iio/magnetometer/ak8975.h b/include/linux/iio/magnetometer/ak8975.h
index c8400959d197..ac9366f807cb 100644
--- a/include/linux/iio/magnetometer/ak8975.h
+++ b/include/linux/iio/magnetometer/ak8975.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __IIO_MAGNETOMETER_AK8975_H__
 #define __IIO_MAGNETOMETER_AK8975_H__
 
diff --git a/include/linux/iio/sw_device.h b/include/linux/iio/sw_device.h
index fa7931933067..8642b91a7577 100644
--- a/include/linux/iio/sw_device.h
+++ b/include/linux/iio/sw_device.h
@@ -60,7 +60,7 @@ void iio_sw_device_type_configfs_unregister(struct iio_sw_device_type *dt);
 static inline
 void iio_swd_group_init_type_name(struct iio_sw_device *d,
 				  const char *name,
-				  struct config_item_type *type)
+				  const struct config_item_type *type)
 {
 #if IS_ENABLED(CONFIG_CONFIGFS_FS)
 	config_group_init_type_name(&d->group, name, type);
diff --git a/include/linux/iio/sw_trigger.h b/include/linux/iio/sw_trigger.h
index c97eab67558f..0c43738a9e24 100644
--- a/include/linux/iio/sw_trigger.h
+++ b/include/linux/iio/sw_trigger.h
@@ -60,7 +60,7 @@ void iio_sw_trigger_type_configfs_unregister(struct iio_sw_trigger_type *tt);
 static inline
 void iio_swt_group_init_type_name(struct iio_sw_trigger *t,
 				  const char *name,
-				  struct config_item_type *type)
+				  const struct config_item_type *type)
 {
 #if IS_ENABLED(CONFIG_CONFIGFS_FS)
 	config_group_init_type_name(&t->group, name, type);
diff --git a/include/linux/iio/timer/stm32-lptim-trigger.h b/include/linux/iio/timer/stm32-lptim-trigger.h
new file mode 100644
index 000000000000..34d59bfdce2d
--- /dev/null
+++ b/include/linux/iio/timer/stm32-lptim-trigger.h
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) STMicroelectronics 2017
+ *
+ * Author: Fabrice Gasnier <fabrice.gasnier@st.com>
+ *
+ * License terms:  GNU General Public License (GPL), version 2
+ */
+
+#ifndef _STM32_LPTIM_TRIGGER_H_
+#define _STM32_LPTIM_TRIGGER_H_
+
+#include <linux/iio/iio.h>
+#include <linux/iio/trigger.h>
+
+#define LPTIM1_OUT	"lptim1_out"
+#define LPTIM2_OUT	"lptim2_out"
+#define LPTIM3_OUT	"lptim3_out"
+
+#if IS_ENABLED(CONFIG_IIO_STM32_LPTIMER_TRIGGER)
+bool is_stm32_lptim_trigger(struct iio_trigger *trig);
+#else
+static inline bool is_stm32_lptim_trigger(struct iio_trigger *trig)
+{
+	return false;
+}
+#endif
+#endif
diff --git a/include/linux/iio/timer/stm32-timer-trigger.h b/include/linux/iio/timer/stm32-timer-trigger.h
index fa7d786ed99e..d68add80ab86 100644
--- a/include/linux/iio/timer/stm32-timer-trigger.h
+++ b/include/linux/iio/timer/stm32-timer-trigger.h
@@ -55,10 +55,24 @@
 #define TIM9_CH1	"tim9_ch1"
 #define TIM9_CH2	"tim9_ch2"
 
+#define TIM10_OC1	"tim10_oc1"
+
+#define TIM11_OC1	"tim11_oc1"
+
 #define TIM12_TRGO	"tim12_trgo"
 #define TIM12_CH1	"tim12_ch1"
 #define TIM12_CH2	"tim12_ch2"
 
+#define TIM13_OC1	"tim13_oc1"
+
+#define TIM14_OC1	"tim14_oc1"
+
+#define TIM15_TRGO	"tim15_trgo"
+
+#define TIM16_OC1	"tim16_oc1"
+
+#define TIM17_OC1	"tim17_oc1"
+
 bool is_stm32_timer_trigger(struct iio_trigger *trig);
 
 #endif
diff --git a/include/linux/iio/trigger.h b/include/linux/iio/trigger.h
index ea08302f2d7b..7d5e44518379 100644
--- a/include/linux/iio/trigger.h
+++ b/include/linux/iio/trigger.h
@@ -23,7 +23,6 @@ struct iio_trigger;
 
 /**
  * struct iio_trigger_ops - operations structure for an iio_trigger.
- * @owner:		used to monitor usage count of the trigger.
  * @set_trigger_state:	switch on/off the trigger on demand
  * @try_reenable:	function to reenable the trigger when the
  *			use count is zero (may be NULL)
@@ -34,7 +33,6 @@ struct iio_trigger;
  * instances of a given device.
  **/
 struct iio_trigger_ops {
-	struct module *owner;
 	int (*set_trigger_state)(struct iio_trigger *trig, bool state);
 	int (*try_reenable)(struct iio_trigger *trig);
 	int (*validate_device)(struct iio_trigger *trig,
@@ -62,6 +60,7 @@ struct iio_trigger_ops {
  **/
 struct iio_trigger {
 	const struct iio_trigger_ops	*ops;
+	struct module			*owner;
 	int				id;
 	const char			*name;
 	struct device			dev;
@@ -87,14 +86,14 @@ static inline struct iio_trigger *to_iio_trigger(struct device *d)
 
 static inline void iio_trigger_put(struct iio_trigger *trig)
 {
-	module_put(trig->ops->owner);
+	module_put(trig->owner);
 	put_device(&trig->dev);
 }
 
 static inline struct iio_trigger *iio_trigger_get(struct iio_trigger *trig)
 {
 	get_device(&trig->dev);
-	__module_get(trig->ops->owner);
+	__module_get(trig->owner);
 
 	return trig;
 }
@@ -127,10 +126,16 @@ static inline void *iio_trigger_get_drvdata(struct iio_trigger *trig)
  * iio_trigger_register() - register a trigger with the IIO core
  * @trig_info:	trigger to be registered
  **/
-int iio_trigger_register(struct iio_trigger *trig_info);
+#define iio_trigger_register(trig_info) \
+	__iio_trigger_register((trig_info), THIS_MODULE)
+int __iio_trigger_register(struct iio_trigger *trig_info,
+			   struct module *this_mod);
 
-int devm_iio_trigger_register(struct device *dev,
-			      struct iio_trigger *trig_info);
+#define devm_iio_trigger_register(dev, trig_info) \
+	__devm_iio_trigger_register((dev), (trig_info), THIS_MODULE)
+int __devm_iio_trigger_register(struct device *dev,
+				struct iio_trigger *trig_info,
+				struct module *this_mod);
 
 /**
  * iio_trigger_unregister() - unregister a trigger from the core
@@ -144,8 +149,8 @@ void devm_iio_trigger_unregister(struct device *dev,
 /**
  * iio_trigger_set_immutable() - set an immutable trigger on destination
  *
- * @indio_dev - IIO device structure containing the device
- * @trig - trigger to assign to device
+ * @indio_dev: IIO device structure containing the device
+ * @trig: trigger to assign to device
  *
  **/
 int iio_trigger_set_immutable(struct iio_dev *indio_dev, struct iio_trigger *trig);
diff --git a/include/linux/iio/triggered_buffer.h b/include/linux/iio/triggered_buffer.h
index 30145616773d..238ad30ce166 100644
--- a/include/linux/iio/triggered_buffer.h
+++ b/include/linux/iio/triggered_buffer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_IIO_TRIGGERED_BUFFER_H_
 #define _LINUX_IIO_TRIGGERED_BUFFER_H_
 
diff --git a/include/linux/iio/triggered_event.h b/include/linux/iio/triggered_event.h
index 8fe8537085bb..13250fd99745 100644
--- a/include/linux/iio/triggered_event.h
+++ b/include/linux/iio/triggered_event.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_IIO_TRIGGERED_EVENT_H_
 #define _LINUX_IIO_TRIGGERED_EVENT_H_