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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * Copyright 2014 Freescale Semiconductor, Inc.
- * Copyright 2020-21 NXP
- * Copyright 2021 Microsoft Corporation
- */
- #include <common.h>
- #include <i2c.h>
- #include "i2c_common.h"
- #include "i2c_mux.h"
- /*
- * A new Kconfig option for something that used to always be built should be
- * “default y”.
- */
- #ifdef CONFIG_FSL_USE_PCA9547_MUX
- int select_i2c_ch_pca9547(u8 ch, int bus)
- {
- int ret;
- DEVICE_HANDLE_T dev;
- /* Open device handle */
- ret = fsl_i2c_get_device(I2C_MUX_PCA_ADDR_PRI, bus, &dev);
- if (ret) {
- printf("PCA: No PCA9547 device found\n");
- return ret;
- }
- ret = I2C_WRITE(dev, 0, &ch, sizeof(ch));
- if (ret) {
- printf("PCA: Unable to select channel %d (%d)\n", (int)ch, ret);
- return ret;
- }
- return 0;
- }
- #endif
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