// SPDX-License-Identifier: GPL-2.0 /* * I2C driver for the Renesas EMEV2 SoC * * Copyright (C) 2015 Wolfram Sang <[email protected]> * Copyright 2013 Codethink Ltd. * Copyright 2010-2015 Renesas Electronics Corporation */ #include <linux/clk.h> #include <linux/completion.h> #include <linux/device.h> #include <linux/i2c.h> #include <linux/init.h> #include <linux/interrupt.h> #include <linux/io.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/of.h> #include <linux/platform_device.h> #include <linux/sched.h> /* I2C Registers */ #define I2C_OFS_IICACT0 … #define I2C_OFS_IIC0 … #define I2C_OFS_IICC0 … #define I2C_OFS_SVA0 … #define I2C_OFS_IICCL0 … #define I2C_OFS_IICX0 … #define I2C_OFS_IICS0 … #define I2C_OFS_IICSE0 … #define I2C_OFS_IICF0 … /* I2C IICACT0 Masks */ #define I2C_BIT_IICE0 … /* I2C IICC0 Masks */ #define I2C_BIT_LREL0 … #define I2C_BIT_WREL0 … #define I2C_BIT_SPIE0 … #define I2C_BIT_WTIM0 … #define I2C_BIT_ACKE0 … #define I2C_BIT_STT0 … #define I2C_BIT_SPT0 … /* I2C IICCL0 Masks */ #define I2C_BIT_SMC0 … #define I2C_BIT_DFC0 … /* I2C IICSE0 Masks */ #define I2C_BIT_MSTS0 … #define I2C_BIT_ALD0 … #define I2C_BIT_EXC0 … #define I2C_BIT_COI0 … #define I2C_BIT_TRC0 … #define I2C_BIT_ACKD0 … #define I2C_BIT_STD0 … #define I2C_BIT_SPD0 … /* I2C IICF0 Masks */ #define I2C_BIT_STCF … #define I2C_BIT_IICBSY … #define I2C_BIT_STCEN … #define I2C_BIT_IICRSV … struct em_i2c_device { … }; static inline void em_clear_set_bit(struct em_i2c_device *priv, u8 clear, u8 set, u8 reg) { … } static int em_i2c_wait_for_event(struct em_i2c_device *priv) { … } static void em_i2c_stop(struct em_i2c_device *priv) { … } static void em_i2c_reset(struct i2c_adapter *adap) { … } static int __em_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg *msg, int stop) { … } static int em_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num) { … } static bool em_i2c_slave_irq(struct em_i2c_device *priv) { … } static irqreturn_t em_i2c_irq_handler(int this_irq, void *dev_id) { … } static u32 em_i2c_func(struct i2c_adapter *adap) { … } static int em_i2c_reg_slave(struct i2c_client *slave) { … } static int em_i2c_unreg_slave(struct i2c_client *slave) { … } static const struct i2c_algorithm em_i2c_algo = …; static int em_i2c_probe(struct platform_device *pdev) { … } static void em_i2c_remove(struct platform_device *dev) { … } static const struct of_device_id em_i2c_ids[] = …; static struct platform_driver em_i2c_driver = …; module_platform_driver(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …; MODULE_DEVICE_TABLE(of, em_i2c_ids);
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