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 */ | |