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
  ...

6 files changed, 192 insertions, 0 deletions

diff --git a/include/linux/platform_data/i2c-gpio.h b/include/linux/platform_data/i2c-gpio.h
new file mode 100644
index 000000000000..352c1426fd4d
--- /dev/null
+++ b/include/linux/platform_data/i2c-gpio.h
@@ -0,0 +1,34 @@
+/*
+ * i2c-gpio interface to platform code
+ *
+ * Copyright (C) 2007 Atmel Corporation
+ *
+ * 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 _LINUX_I2C_GPIO_H
+#define _LINUX_I2C_GPIO_H
+
+/**
+ * struct i2c_gpio_platform_data - Platform-dependent data for i2c-gpio
+ * @udelay: signal toggle delay. SCL frequency is (500 / udelay) kHz
+ * @timeout: clock stretching timeout in jiffies. If the slave keeps
+ *      SCL low for longer than this, the transfer will time out.
+ * @sda_is_open_drain: SDA is configured as open drain, i.e. the pin
+ *      isn't actively driven high when setting the output value high.
+ *      gpio_get_value() must return the actual pin state even if the
+ *      pin is configured as an output.
+ * @scl_is_open_drain: SCL is set up as open drain. Same requirements
+ *      as for sda_is_open_drain apply.
+ * @scl_is_output_only: SCL output drivers cannot be turned off.
+ */
+struct i2c_gpio_platform_data {
+        int             udelay;
+        int             timeout;
+        unsigned int    sda_is_open_drain:1;
+        unsigned int    scl_is_open_drain:1;
+        unsigned int    scl_is_output_only:1;
+};
+
+#endif /* _LINUX_I2C_GPIO_H */
diff --git a/include/linux/platform_data/i2c-mux-gpio.h b/include/linux/platform_data/i2c-mux-gpio.h
new file mode 100644
index 000000000000..4406108201fe
--- /dev/null
+++ b/include/linux/platform_data/i2c-mux-gpio.h
@@ -0,0 +1,43 @@
+/*
+ * i2c-mux-gpio interface to platform code
+ *
+ * Peter Korsgaard <peter.korsgaard@barco.com>
+ *
+ * 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 _LINUX_I2C_MUX_GPIO_H
+#define _LINUX_I2C_MUX_GPIO_H
+
+/* MUX has no specific idle mode */
+#define I2C_MUX_GPIO_NO_IDLE    ((unsigned)-1)
+
+/**
+ * struct i2c_mux_gpio_platform_data - Platform-dependent data for i2c-mux-gpio
+ * @parent: Parent I2C bus adapter number
+ * @base_nr: Base I2C bus number to number adapters from or zero for dynamic
+ * @values: Array of bitmasks of GPIO settings (low/high) for each
+ *      position
+ * @n_values: Number of multiplexer positions (busses to instantiate)
+ * @classes: Optional I2C auto-detection classes
+ * @gpio_chip: Optional GPIO chip name; if set, GPIO pin numbers are given
+ *      relative to the base GPIO number of that chip
+ * @gpios: Array of GPIO numbers used to control MUX
+ * @n_gpios: Number of GPIOs used to control MUX
+ * @idle: Bitmask to write to MUX when idle or GPIO_I2CMUX_NO_IDLE if not used
+ */
+struct i2c_mux_gpio_platform_data {
+        int parent;
+        int base_nr;
+        const unsigned *values;
+        int n_values;
+        const unsigned *classes;
+        char *gpio_chip;
+        const unsigned *gpios;
+        int n_gpios;
+        unsigned idle;
+};
+
+#endif /* _LINUX_I2C_MUX_GPIO_H */
diff --git a/include/linux/platform_data/i2c-ocores.h b/include/linux/platform_data/i2c-ocores.h
new file mode 100644
index 000000000000..01edd96fe1f7
--- /dev/null
+++ b/include/linux/platform_data/i2c-ocores.h
@@ -0,0 +1,23 @@
+/*
+ * i2c-ocores.h - definitions for the i2c-ocores interface
+ *
+ * Peter Korsgaard <jacmet@sunsite.dk>
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2.  This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#ifndef _LINUX_I2C_OCORES_H
+#define _LINUX_I2C_OCORES_H
+
+struct ocores_i2c_platform_data {
+        u32 reg_shift; /* register offset shift value */
+        u32 reg_io_width; /* register io read/write width */
+        u32 clock_khz; /* input clock in kHz */
+        bool big_endian; /* registers are big endian */
+        u8 num_devices; /* number of devices in the devices list */
+        struct i2c_board_info const *devices; /* devices connected to the bus */
+};
+
+#endif /* _LINUX_I2C_OCORES_H */
diff --git a/include/linux/platform_data/i2c-omap.h b/include/linux/platform_data/i2c-omap.h
new file mode 100644
index 000000000000..3444265ee8ee
--- /dev/null
+++ b/include/linux/platform_data/i2c-omap.h
@@ -0,0 +1,39 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __I2C_OMAP_H__
+#define __I2C_OMAP_H__
+
+#include <linux/platform_device.h>
+
+/*
+ * Version 2 of the I2C peripheral unit has a different register
+ * layout and extra registers.  The ID register in the V2 peripheral
+ * unit on the OMAP4430 reports the same ID as the V1 peripheral
+ * unit on the OMAP3530, so we must inform the driver which IP
+ * version we know it is running on from platform / cpu-specific
+ * code using these constants in the hwmod class definition.
+ */
+
+#define OMAP_I2C_IP_VERSION_1 1
+#define OMAP_I2C_IP_VERSION_2 2
+
+/* struct omap_i2c_bus_platform_data .flags meanings */
+
+#define OMAP_I2C_FLAG_NO_FIFO                   BIT(0)
+#define OMAP_I2C_FLAG_SIMPLE_CLOCK              BIT(1)
+#define OMAP_I2C_FLAG_16BIT_DATA_REG            BIT(2)
+#define OMAP_I2C_FLAG_ALWAYS_ARMXOR_CLK BIT(5)
+#define OMAP_I2C_FLAG_FORCE_19200_INT_CLK       BIT(6)
+/* how the CPU address bus must be translated for I2C unit access */
+#define OMAP_I2C_FLAG_BUS_SHIFT_NONE 0
+#define OMAP_I2C_FLAG_BUS_SHIFT_1               BIT(7)
+#define OMAP_I2C_FLAG_BUS_SHIFT_2               BIT(8)
+#define OMAP_I2C_FLAG_BUS_SHIFT__SHIFT 7
+
+struct omap_i2c_bus_platform_data {
+        u32             clkrate;
+        u32             rev;
+        u32             flags;
+        void            (*set_mpu_wkup_lat)(struct device *dev, long set);
+};
+
+#endif
diff --git a/include/linux/platform_data/i2c-pca-platform.h b/include/linux/platform_data/i2c-pca-platform.h
new file mode 100644
index 000000000000..c37329432a8e
--- /dev/null
+++ b/include/linux/platform_data/i2c-pca-platform.h
@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef I2C_PCA9564_PLATFORM_H
+#define I2C_PCA9564_PLATFORM_H
+
+struct i2c_pca9564_pf_platform_data {
+        int i2c_clock_speed;    /* values are defined in linux/i2c-algo-pca.h */
+        int timeout;            /* timeout in jiffies */
+};
+
+#endif /* I2C_PCA9564_PLATFORM_H */
diff --git a/include/linux/platform_data/i2c-xiic.h b/include/linux/platform_data/i2c-xiic.h
new file mode 100644
index 000000000000..4f9f2256a97e
--- /dev/null
+++ b/include/linux/platform_data/i2c-xiic.h
@@ -0,0 +1,43 @@
+/*
+ * i2c-xiic.h
+ * Copyright (c) 2009 Intel Corporation
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/* Supports:
+ * Xilinx IIC
+ */
+
+#ifndef _LINUX_I2C_XIIC_H
+#define _LINUX_I2C_XIIC_H
+
+/**
+ * struct xiic_i2c_platform_data - Platform data of the Xilinx I2C driver
+ * @num_devices:        Number of devices that shall be added when the driver
+ *                      is probed.
+ * @devices:            The actuall devices to add.
+ *
+ * This purpose of this platform data struct is to be able to provide a number
+ * of devices that should be added to the I2C bus. The reason is that sometimes
+ * the I2C board info is not enough, a new PCI board can for instance be
+ * plugged into a standard PC, and the bus number might be unknown at
+ * early init time.
+ */
+struct xiic_i2c_platform_data {
+        u8                              num_devices;
+        struct i2c_board_info const     *devices;
+};
+
+#endif /* _LINUX_I2C_XIIC_H */