Merge branch 'i2c/for-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang: - mainly feature additions to drivers (stm32f7, qup, xlp9xx, mlxcpld, ...) - conversion to use the i2c_8bit_addr_from_msg macro consistently - move includes to platform_data - core updates to allow the (still in review) I3C subsystem to connect - and the regular share of smaller driver updates * 'i2c/for-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (68 commits) i2c: qup: fix building without CONFIG_ACPI i2c: tegra: Remove suspend-resume i2c: imx-lpi2c: Switch to SPDX identifier i2c: mxs: Switch to SPDX identifier i2c: busses: make use of i2c_8bit_addr_from_msg i2c: algos: make use of i2c_8bit_addr_from_msg i2c: rcar: document R8A77980 bindings i2c: qup: Add command-line parameter to override SCL frequency i2c: qup: Correct duty cycle for FM and FM+ i2c: qup: Add support for Fast Mode Plus i2c: qup: add probe path for Centriq ACPI devices i2c: robotfuzz-osif: drop pointless test i2c: robotfuzz-osif: remove pointless local variable i2c: rk3x: Don't print visible virtual mapping MMIO address i2c: opal: don't check number of messages in the driver i2c: ibm_iic: don't check number of messages in the driver i2c: imx: Switch to SPDX identifier i2c: mux: pca954x: merge calls to of_match_device and of_device_get_match_data i2c: mux: demux-pinctrl: use proper parent device for demux adapter i2c: mux: improve error message for failed symlink ...
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@@ -20,6 +20,10 @@ The next transaction types are supported:
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- Write Byte/Block.
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Registers:
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CPBLTY 0x0 - capability reg.
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Bits [6:5] - transaction length. b01 - 72B is supported,
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36B in other case.
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Bit 7 - SMBus block read support.
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CTRL 0x1 - control reg.
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Resets all the registers.
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HALF_CYC 0x4 - cycle reg.
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@@ -18,7 +18,7 @@ Usage
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i2c-ocores uses the platform bus, so you need to provide a struct
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platform_device with the base address and interrupt number. The
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dev.platform_data of the device should also point to a struct
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ocores_i2c_platform_data (see linux/i2c-ocores.h) describing the
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ocores_i2c_platform_data (see linux/platform_data/i2c-ocores.h) describing the
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distance between registers and the input clock speed.
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There is also a possibility to attach a list of i2c_board_info which
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the i2c-ocores driver will add to the bus upon creation.
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@@ -30,12 +30,12 @@ i2c-mux-gpio uses the platform bus, so you need to provide a struct
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platform_device with the platform_data pointing to a struct
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i2c_mux_gpio_platform_data with the I2C adapter number of the master
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bus, the number of bus segments to create and the GPIO pins used
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to control it. See include/linux/i2c-mux-gpio.h for details.
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to control it. See include/linux/platform_data/i2c-mux-gpio.h for details.
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E.G. something like this for a MUX providing 4 bus segments
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controlled through 3 GPIO pins:
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#include <linux/i2c-mux-gpio.h>
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#include <linux/platform_data/i2c-mux-gpio.h>
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#include <linux/platform_device.h>
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static const unsigned myboard_gpiomux_gpios[] = {
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