Pull i2c updates from Wolfram Sang: "Features: - new drivers: Renesas EMEV2, register based MUX, NXP LPC2xxx - core: scans DT and assigns wakeup interrupts. no driver changes needed. - core: some refcouting issues fixed and better API for that - core: new helper function for best effort block read emulation - slave framework: proper DT bindings and userspace instantiation - some bigger work for xiic, pxa, omap drivers .. and quite a number of smaller driver fixes, cleanups, improvements" * 'i2c/for-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (65 commits) i2c: mux: reg Change ioread endianness for readback i2c: mux: reg: fix compilation warnings i2c: mux: reg: simplify register size checking i2c: muxes: fix leaked i2c adapter device node references i2c: allow specifying separate wakeup interrupt in device tree of/irq: export of_get_irq_byname() i2c: xgene-slimpro: dma_mapping_error() doesn't return an error code i2c: Replace I2C_CROS_EC_TUNNEL dependency eeprom: at24: use i2c_smbus_read_i2c_block_data_or_emulated i2c: core: Add support for best effort block read emulation i2c: lpc2k: add driver i2c: mux: Add register-based mux i2c-mux-reg i2c: dt: describe generic bindings i2c: slave: print warning if slave flag not set i2c: support 10 bit and slave addresses in sysfs 'new_device' i2c: take address space into account when checking for used addresses i2c: apply DT flags when probing i2c: make address check indpendent from client struct i2c: rename address check functions i2c: apply address offset for slaves, too ...
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| 1 | /* | ||
| 2 | * I2C multiplexer using a single register | ||
| 3 | * | ||
| 4 | * Copyright 2015 Freescale Semiconductor | ||
| 5 | * York Sun <yorksun@freescale.com> | ||
| 6 | * | ||
| 7 | * This program is free software; you can redistribute it and/or modify it | ||
| 8 | * under the terms of the GNU General Public License as published by the | ||
| 9 | * Free Software Foundation; either version 2 of the License, or (at your | ||
| 10 | * option) any later version. | ||
| 11 | */ | ||
| 12 | |||
| 13 | #ifndef __LINUX_PLATFORM_DATA_I2C_MUX_REG_H | ||
| 14 | #define __LINUX_PLATFORM_DATA_I2C_MUX_REG_H | ||
| 15 | |||
| 16 | /** | ||
| 17 | * struct i2c_mux_reg_platform_data - Platform-dependent data for i2c-mux-reg | ||
| 18 | * @parent: Parent I2C bus adapter number | ||
| 19 | * @base_nr: Base I2C bus number to number adapters from or zero for dynamic | ||
| 20 | * @values: Array of value for each channel | ||
| 21 | * @n_values: Number of multiplexer channels | ||
| 22 | * @little_endian: Indicating if the register is in little endian | ||
| 23 | * @write_only: Reading the register is not allowed by hardware | ||
| 24 | * @classes: Optional I2C auto-detection classes | ||
| 25 | * @idle: Value to write to mux when idle | ||
| 26 | * @idle_in_use: indicate if idle value is in use | ||
| 27 | * @reg: Virtual address of the register to switch channel | ||
| 28 | * @reg_size: register size in bytes | ||
| 29 | */ | ||
| 30 | struct i2c_mux_reg_platform_data { | ||
| 31 | int parent; | ||
| 32 | int base_nr; | ||
| 33 | const unsigned int *values; | ||
| 34 | int n_values; | ||
| 35 | bool little_endian; | ||
| 36 | bool write_only; | ||
| 37 | const unsigned int *classes; | ||
| 38 | u32 idle; | ||
| 39 | bool idle_in_use; | ||
| 40 | void __iomem *reg; | ||
| 41 | resource_size_t reg_size; | ||
| 42 | }; | ||
| 43 | |||
| 44 | #endif /* __LINUX_PLATFORM_DATA_I2C_MUX_REG_H */ | ||