Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

Pull input updates from Dmitry Torokhov:
 "The most notable item is addition of support for Synaptics RMI4
  protocol which is native protocol for all current Synaptics devices
  (touchscreens, touchpads).  In later releases we'll switch devices
  using HID and PS/2 protocol emulation to RMI4.

  You will also get:
   - BYD PS/2 touchpad protocol support for psmouse
   - MELFAS MIP4 Touchscreen driver
   - rotary encoder was moved away from legacy platform data and to
     generic device properties API, devm_* API, and can now handle
     encoders using more than 2 GPIOs
   - Cypress touchpad driver was switched to devm_* API and device
     properties
   - other assorted driver fixes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (40 commits)
  ARM: pxa/raumfeld: use PROPERTY_ENTRY_INTEGER to define props
  Input: synaptics-rmi4 - using logical instead of bitwise AND
  Input: powermate - fix oops with malicious USB descriptors
  Input: snvs_pwrkey - fix returned value check of syscon_regmap_lookup_by_phandle()
  MAINTAINERS: add devicetree bindings to Input Drivers section
  Input: synaptics-rmi4 - add device tree support to the SPI transport driver
  Input: synaptics-rmi4 - add SPI transport driver
  Input: synaptics-rmi4 - add support for F30
  Input: synaptics-rmi4 - add support for F12
  Input: synaptics-rmi4 - add device tree support for 2d sensors and F11
  Input: synaptics-rmi4 - add support for 2D sensors and F11
  Input: synaptics-rmi4 - add device tree support for RMI4 I2C devices
  Input: synaptics-rmi4 - add I2C transport driver
  Input: synaptics-rmi4 - add support for Synaptics RMI4 devices
  Input: ad7879 - add device tree support
  Input: ad7879 - fix default x/y axis assignment
  Input: ad7879 - move header to platform_data directory
  Input: ts4800 - add hardware dependency
  Input: cyapa - fix for losing events during device power transitions
  Input: sh_keysc - remove dependency on SUPERH
  ...

5 files changed, 361 insertions, 33 deletions

diff --git a/include/linux/input/cyttsp.h b/include/linux/input/cyttsp.h
index 5af7c66f1fca..586c8c95dcb0 100644
--- a/include/linux/input/cyttsp.h
+++ b/include/linux/input/cyttsp.h
@@ -40,19 +40,4 @@
 /* Active distance in pixels for a gesture to be reported */
 #define CY_ACT_DIST_DFLT 0xF8 /* pixels */
 
-struct cyttsp_platform_data {
-	u32 maxx;
-	u32 maxy;
-	bool use_hndshk;
-	u8 act_dist;	/* Active distance */
-	u8 act_intrvl;  /* Active refresh interval; ms */
-	u8 tch_tmout;   /* Active touch timeout; ms */
-	u8 lp_intrvl;   /* Low power refresh interval; ms */
-	int (*init)(void);
-	void (*exit)(void);
-	char *name;
-	s16 irq_gpio;
-	u8 *bl_keys;
-};
-
 #endif /* _CYTTSP_H_ */
diff --git a/include/linux/spi/ad7879.h b/include/linux/platform_data/ad7879.h
index 58368be0b4c0..69e2e1fd2bc8 100644
--- a/include/linux/spi/ad7879.h
+++ b/include/linux/platform_data/ad7879.h
@@ -1,4 +1,4 @@
-/* linux/spi/ad7879.h */
+/* linux/platform_data/ad7879.h */
 
 /* Touchscreen characteristics vary between boards and models.  The
  * platform_data for the device's "struct device" holds this information.
diff --git a/include/linux/rmi.h b/include/linux/rmi.h
new file mode 100644
index 000000000000..e0aca1476001
--- /dev/null
+++ b/include/linux/rmi.h
@@ -0,0 +1,359 @@
+/*
+ * Copyright (c) 2011-2016 Synaptics Incorporated
+ * Copyright (c) 2011 Unixphere
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#ifndef _RMI_H
+#define _RMI_H
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+#include <linux/list.h>
+#include <linux/module.h>
+#include <linux/types.h>
+
+#define NAME_BUFFER_SIZE 256
+
+/**
+ * struct rmi_2d_axis_alignment - target axis alignment
+ * @swap_axes: set to TRUE if desired to swap x- and y-axis
+ * @flip_x: set to TRUE if desired to flip direction on x-axis
+ * @flip_y: set to TRUE if desired to flip direction on y-axis
+ * @clip_x_low - reported X coordinates below this setting will be clipped to
+ *               the specified value
+ * @clip_x_high - reported X coordinates above this setting will be clipped to
+ *               the specified value
+ * @clip_y_low - reported Y coordinates below this setting will be clipped to
+ *               the specified value
+ * @clip_y_high - reported Y coordinates above this setting will be clipped to
+ *               the specified value
+ * @offset_x - this value will be added to all reported X coordinates
+ * @offset_y - this value will be added to all reported Y coordinates
+ * @rel_report_enabled - if set to true, the relative reporting will be
+ *               automatically enabled for this sensor.
+ */
+struct rmi_2d_axis_alignment {
+	bool swap_axes;
+	bool flip_x;
+	bool flip_y;
+	u16 clip_x_low;
+	u16 clip_y_low;
+	u16 clip_x_high;
+	u16 clip_y_high;
+	u16 offset_x;
+	u16 offset_y;
+	u8 delta_x_threshold;
+	u8 delta_y_threshold;
+};
+
+/** This is used to override any hints an F11 2D sensor might have provided
+ * as to what type of sensor it is.
+ *
+ * @rmi_f11_sensor_default - do not override, determine from F11_2D_QUERY14 if
+ * available.
+ * @rmi_f11_sensor_touchscreen - treat the sensor as a touchscreen (direct
+ * pointing).
+ * @rmi_f11_sensor_touchpad - thread the sensor as a touchpad (indirect
+ * pointing).
+ */
+enum rmi_sensor_type {
+	rmi_sensor_default = 0,
+	rmi_sensor_touchscreen,
+	rmi_sensor_touchpad
+};
+
+#define RMI_F11_DISABLE_ABS_REPORT      BIT(0)
+
+/**
+ * struct rmi_2d_sensor_data - overrides defaults for a 2D sensor.
+ * @axis_align - provides axis alignment overrides (see above).
+ * @sensor_type - Forces the driver to treat the sensor as an indirect
+ * pointing device (touchpad) rather than a direct pointing device
+ * (touchscreen).  This is useful when F11_2D_QUERY14 register is not
+ * available.
+ * @disable_report_mask - Force data to not be reported even if it is supported
+ * by the firware.
+ * @topbuttonpad - Used with the "5 buttons touchpads" found on the Lenovo 40
+ * series
+ * @kernel_tracking - most moderns RMI f11 firmwares implement Multifinger
+ * Type B protocol. However, there are some corner cases where the user
+ * triggers some jumps by tapping with two fingers on the touchpad.
+ * Use this setting and dmax to filter out these jumps.
+ * Also, when using an old sensor using MF Type A behavior, set to true to
+ * report an actual MT protocol B.
+ * @dmax - the maximum distance (in sensor units) the kernel tracking allows two
+ * distincts fingers to be considered the same.
+ */
+struct rmi_2d_sensor_platform_data {
+	struct rmi_2d_axis_alignment axis_align;
+	enum rmi_sensor_type sensor_type;
+	int x_mm;
+	int y_mm;
+	int disable_report_mask;
+	u16 rezero_wait;
+	bool topbuttonpad;
+	bool kernel_tracking;
+	int dmax;
+};
+
+/**
+ * struct rmi_f30_data - overrides defaults for a single F30 GPIOs/LED chip.
+ * @buttonpad - the touchpad is a buttonpad, so enable only the first actual
+ * button that is found.
+ * @trackstick_buttons - Set when the function 30 is handling the physical
+ * buttons of the trackstick (as a PD/2 passthrough device.
+ * @disable - the touchpad incorrectly reports F30 and it should be ignored.
+ * This is a special case which is due to misconfigured firmware.
+ */
+struct rmi_f30_data {
+	bool buttonpad;
+	bool trackstick_buttons;
+	bool disable;
+};
+
+/**
+ * struct rmi_f01_power - override default power management settings.
+ *
+ */
+enum rmi_f01_nosleep {
+	RMI_F01_NOSLEEP_DEFAULT = 0,
+	RMI_F01_NOSLEEP_OFF = 1,
+	RMI_F01_NOSLEEP_ON = 2
+};
+
+/**
+ * struct rmi_f01_power_management -When non-zero, these values will be written
+ * to the touch sensor to override the default firmware settigns.  For a
+ * detailed explanation of what each field does, see the corresponding
+ * documention in the RMI4 specification.
+ *
+ * @nosleep - specifies whether the device is permitted to sleep or doze (that
+ * is, enter a temporary low power state) when no fingers are touching the
+ * sensor.
+ * @wakeup_threshold - controls the capacitance threshold at which the touch
+ * sensor will decide to wake up from that low power state.
+ * @doze_holdoff - controls how long the touch sensor waits after the last
+ * finger lifts before entering the doze state, in units of 100ms.
+ * @doze_interval - controls the interval between checks for finger presence
+ * when the touch sensor is in doze mode, in units of 10ms.
+ */
+struct rmi_f01_power_management {
+	enum rmi_f01_nosleep nosleep;
+	u8 wakeup_threshold;
+	u8 doze_holdoff;
+	u8 doze_interval;
+};
+
+/**
+ * struct rmi_device_platform_data_spi - provides parameters used in SPI
+ * communications.  All Synaptics SPI products support a standard SPI
+ * interface; some also support what is called SPI V2 mode, depending on
+ * firmware and/or ASIC limitations.  In V2 mode, the touch sensor can
+ * support shorter delays during certain operations, and these are specified
+ * separately from the standard mode delays.
+ *
+ * @block_delay - for standard SPI transactions consisting of both a read and
+ * write operation, the delay (in microseconds) between the read and write
+ * operations.
+ * @split_read_block_delay_us - for V2 SPI transactions consisting of both a
+ * read and write operation, the delay (in microseconds) between the read and
+ * write operations.
+ * @read_delay_us - the delay between each byte of a read operation in normal
+ * SPI mode.
+ * @write_delay_us - the delay between each byte of a write operation in normal
+ * SPI mode.
+ * @split_read_byte_delay_us - the delay between each byte of a read operation
+ * in V2 mode.
+ * @pre_delay_us - the delay before the start of a SPI transaction.  This is
+ * typically useful in conjunction with custom chip select assertions (see
+ * below).
+ * @post_delay_us - the delay after the completion of an SPI transaction.  This
+ * is typically useful in conjunction with custom chip select assertions (see
+ * below).
+ * @cs_assert - For systems where the SPI subsystem does not control the CS/SSB
+ * line, or where such control is broken, you can provide a custom routine to
+ * handle a GPIO as CS/SSB.  This routine will be called at the beginning and
+ * end of each SPI transaction.  The RMI SPI implementation will wait
+ * pre_delay_us after this routine returns before starting the SPI transfer;
+ * and post_delay_us after completion of the SPI transfer(s) before calling it
+ * with assert==FALSE.
+ */
+struct rmi_device_platform_data_spi {
+	u32 block_delay_us;
+	u32 split_read_block_delay_us;
+	u32 read_delay_us;
+	u32 write_delay_us;
+	u32 split_read_byte_delay_us;
+	u32 pre_delay_us;
+	u32 post_delay_us;
+	u8 bits_per_word;
+	u16 mode;
+
+	void *cs_assert_data;
+	int (*cs_assert)(const void *cs_assert_data, const bool assert);
+};
+
+/**
+ * struct rmi_device_platform_data - system specific configuration info.
+ *
+ * @reset_delay_ms - after issuing a reset command to the touch sensor, the
+ * driver waits a few milliseconds to give the firmware a chance to
+ * to re-initialize.  You can override the default wait period here.
+ */
+struct rmi_device_platform_data {
+	int reset_delay_ms;
+
+	struct rmi_device_platform_data_spi spi_data;
+
+	/* function handler pdata */
+	struct rmi_2d_sensor_platform_data *sensor_pdata;
+	struct rmi_f01_power_management power_management;
+	struct rmi_f30_data *f30_data;
+};
+
+/**
+ * struct rmi_function_descriptor - RMI function base addresses
+ *
+ * @query_base_addr: The RMI Query base address
+ * @command_base_addr: The RMI Command base address
+ * @control_base_addr: The RMI Control base address
+ * @data_base_addr: The RMI Data base address
+ * @interrupt_source_count: The number of irqs this RMI function needs
+ * @function_number: The RMI function number
+ *
+ * This struct is used when iterating the Page Description Table. The addresses
+ * are 16-bit values to include the current page address.
+ *
+ */
+struct rmi_function_descriptor {
+	u16 query_base_addr;
+	u16 command_base_addr;
+	u16 control_base_addr;
+	u16 data_base_addr;
+	u8 interrupt_source_count;
+	u8 function_number;
+	u8 function_version;
+};
+
+struct rmi_device;
+
+/**
+ * struct rmi_transport_dev - represent an RMI transport device
+ *
+ * @dev: Pointer to the communication device, e.g. i2c or spi
+ * @rmi_dev: Pointer to the RMI device
+ * @proto_name: name of the transport protocol (SPI, i2c, etc)
+ * @ops: pointer to transport operations implementation
+ *
+ * The RMI transport device implements the glue between different communication
+ * buses such as I2C and SPI.
+ *
+ */
+struct rmi_transport_dev {
+	struct device *dev;
+	struct rmi_device *rmi_dev;
+
+	const char *proto_name;
+	const struct rmi_transport_ops *ops;
+
+	struct rmi_device_platform_data pdata;
+
+	struct input_dev *input;
+
+	void *attn_data;
+	int attn_size;
+};
+
+/**
+ * struct rmi_transport_ops - defines transport protocol operations.
+ *
+ * @write_block: Writing a block of data to the specified address
+ * @read_block: Read a block of data from the specified address.
+ */
+struct rmi_transport_ops {
+	int (*write_block)(struct rmi_transport_dev *xport, u16 addr,
+			   const void *buf, size_t len);
+	int (*read_block)(struct rmi_transport_dev *xport, u16 addr,
+			  void *buf, size_t len);
+	int (*reset)(struct rmi_transport_dev *xport, u16 reset_addr);
+};
+
+/**
+ * struct rmi_driver - driver for an RMI4 sensor on the RMI bus.
+ *
+ * @driver: Device driver model driver
+ * @reset_handler: Called when a reset is detected.
+ * @clear_irq_bits: Clear the specified bits in the current interrupt mask.
+ * @set_irq_bist: Set the specified bits in the current interrupt mask.
+ * @store_productid: Callback for cache product id from function 01
+ * @data: Private data pointer
+ *
+ */
+struct rmi_driver {
+	struct device_driver driver;
+
+	int (*reset_handler)(struct rmi_device *rmi_dev);
+	int (*clear_irq_bits)(struct rmi_device *rmi_dev, unsigned long *mask);
+	int (*set_irq_bits)(struct rmi_device *rmi_dev, unsigned long *mask);
+	int (*store_productid)(struct rmi_device *rmi_dev);
+	int (*set_input_params)(struct rmi_device *rmi_dev,
+			struct input_dev *input);
+	void *data;
+};
+
+/**
+ * struct rmi_device - represents an RMI4 sensor device on the RMI bus.
+ *
+ * @dev: The device created for the RMI bus
+ * @number: Unique number for the device on the bus.
+ * @driver: Pointer to associated driver
+ * @xport: Pointer to the transport interface
+ *
+ */
+struct rmi_device {
+	struct device dev;
+	int number;
+
+	struct rmi_driver *driver;
+	struct rmi_transport_dev *xport;
+
+};
+
+struct rmi_driver_data {
+	struct list_head function_list;
+
+	struct rmi_device *rmi_dev;
+
+	struct rmi_function *f01_container;
+	bool f01_bootloader_mode;
+
+	u32 attn_count;
+	int num_of_irq_regs;
+	int irq_count;
+	unsigned long *irq_status;
+	unsigned long *fn_irq_bits;
+	unsigned long *current_irq_mask;
+	unsigned long *new_irq_mask;
+	struct mutex irq_mutex;
+	struct input_dev *input;
+
+	u8 pdt_props;
+	u8 bsr;
+
+	bool enabled;
+
+	void *data;
+};
+
+int rmi_register_transport_device(struct rmi_transport_dev *xport);
+void rmi_unregister_transport_device(struct rmi_transport_dev *xport);
+int rmi_process_interrupt_requests(struct rmi_device *rmi_dev);
+
+int rmi_driver_suspend(struct rmi_device *rmi_dev);
+int rmi_driver_resume(struct rmi_device *rmi_dev);
+#endif
diff --git a/include/linux/rotary_encoder.h b/include/linux/rotary_encoder.h
deleted file mode 100644
index fe3dc64e5aeb..000000000000
--- a/include/linux/rotary_encoder.h
+++ /dev/null
@@ -1,17 +0,0 @@
-#ifndef __ROTARY_ENCODER_H__
-#define __ROTARY_ENCODER_H__
-
-struct rotary_encoder_platform_data {
-	unsigned int steps;
-	unsigned int axis;
-	unsigned int gpio_a;
-	unsigned int gpio_b;
-	unsigned int inverted_a;
-	unsigned int inverted_b;
-	unsigned int steps_per_period;
-	bool relative_axis;
-	bool rollover;
-	bool wakeup_source;
-};
-
-#endif /* __ROTARY_ENCODER_H__ */
diff --git a/include/uapi/linux/input.h b/include/uapi/linux/input.h
index 2758687300b4..01113841190d 100644
--- a/include/uapi/linux/input.h
+++ b/include/uapi/linux/input.h
@@ -246,6 +246,7 @@ struct input_mask {
 #define BUS_GSC			0x1A
 #define BUS_ATARI		0x1B
 #define BUS_SPI			0x1C
+#define BUS_RMI			0x1D
 
 /*
  * MT_TOOL types