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authorLinus Torvalds <torvalds@linux-foundation.org>2015-09-09 02:16:26 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2015-09-09 02:16:26 +0300
commitacceba598eda9817bc187f3a683a2d2ee7e7fbc7 (patch)
tree761b3950789d5eee179b75ecdafafc988ee42a46 /include/linux/platform_data
parentc19176154b464c861e49355eff636aa6896735b5 (diff)
parent5a73882fd2c3a86b502d54da532d373a1f2db15e (diff)
downloadlinux-acceba598eda9817bc187f3a683a2d2ee7e7fbc7.tar.xz
Merge branch 'i2c/for-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
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 ...
Diffstat (limited to 'include/linux/platform_data')
-rw-r--r--include/linux/platform_data/i2c-mux-reg.h44
1 files changed, 44 insertions, 0 deletions
diff --git a/include/linux/platform_data/i2c-mux-reg.h b/include/linux/platform_data/i2c-mux-reg.h
new file mode 100644
index 000000000000..c68712aadf43
--- /dev/null
+++ b/include/linux/platform_data/i2c-mux-reg.h
@@ -0,0 +1,44 @@
+/*
+ * I2C multiplexer using a single register
+ *
+ * Copyright 2015 Freescale Semiconductor
+ * York Sun <yorksun@freescale.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#ifndef __LINUX_PLATFORM_DATA_I2C_MUX_REG_H
+#define __LINUX_PLATFORM_DATA_I2C_MUX_REG_H
+
+/**
+ * struct i2c_mux_reg_platform_data - Platform-dependent data for i2c-mux-reg
+ * @parent: Parent I2C bus adapter number
+ * @base_nr: Base I2C bus number to number adapters from or zero for dynamic
+ * @values: Array of value for each channel
+ * @n_values: Number of multiplexer channels
+ * @little_endian: Indicating if the register is in little endian
+ * @write_only: Reading the register is not allowed by hardware
+ * @classes: Optional I2C auto-detection classes
+ * @idle: Value to write to mux when idle
+ * @idle_in_use: indicate if idle value is in use
+ * @reg: Virtual address of the register to switch channel
+ * @reg_size: register size in bytes
+ */
+struct i2c_mux_reg_platform_data {
+ int parent;
+ int base_nr;
+ const unsigned int *values;
+ int n_values;
+ bool little_endian;
+ bool write_only;
+ const unsigned int *classes;
+ u32 idle;
+ bool idle_in_use;
+ void __iomem *reg;
+ resource_size_t reg_size;
+};
+
+#endif /* __LINUX_PLATFORM_DATA_I2C_MUX_REG_H */