1// SPDX-License-Identifier: GPL-2.0+ 2/* 3 * Copyright 2014 Freescale Semiconductor, Inc. 4 * Copyright 2020-21 NXP 5 * Copyright 2021 Microsoft Corporation 6 */ 7 8#include <common.h> 9#include <i2c.h> 10#include "i2c_common.h" 11#include "i2c_mux.h" 12 13/* 14 * A new Kconfig option for something that used to always be built should be 15 * "default y". 16 */ 17#ifdef CONFIG_FSL_USE_PCA9547_MUX 18 19int select_i2c_ch_pca9547(u8 ch, int bus) 20{ 21 int ret; 22 DEVICE_HANDLE_T dev; 23 24 /* Open device handle */ 25 ret = fsl_i2c_get_device(I2C_MUX_PCA_ADDR_PRI, bus, &dev); 26 if (ret) { 27 printf("PCA: No PCA9547 device found\n"); 28 return ret; 29 } 30 31 ret = I2C_WRITE(dev, 0, &ch, sizeof(ch)); 32 if (ret) { 33 printf("PCA: Unable to select channel %d (%d)\n", (int)ch, ret); 34 return ret; 35 } 36 37 return 0; 38} 39 40#endif 41