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15347d2dea
Refactors similar mux code from multiple NXP boards into a common location, and allows it to be disabled in config. New config: CONFIG_FSL_USE_PCA9547_MUX to enable PCA9547 mux functionality. Signed-off-by: Stephen Carlson <stcarlso@linux.microsoft.com> Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
31 lines
840 B
C
31 lines
840 B
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright 2014 Freescale Semiconductor, Inc.
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* Copyright 2020-21 NXP
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* Copyright 2021 Microsoft Corporation
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*/
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#ifndef __NXP_I2C_COMMON_H__
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#define __NXP_I2C_COMMON_H__
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/* Common functionality shared by the I2C drivers for VID and the mux. */
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#ifdef CONFIG_DM_I2C
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#define DEVICE_HANDLE_T struct udevice *
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#define I2C_READ(dev, register, data, length) \
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dm_i2c_read(dev, register, data, length)
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#define I2C_WRITE(dev, register, data, length) \
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dm_i2c_write(dev, register, data, length)
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#else
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#define DEVICE_HANDLE_T int
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#define I2C_READ(dev, register, data, length) \
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i2c_read(dev, register, 1, data, length)
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#define I2C_WRITE(dev, register, data, length) \
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i2c_write(dev, register, 1, data, length)
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#endif
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int fsl_i2c_get_device(int address, int bus, DEVICE_HANDLE_T *dev);
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#endif
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