i2c/busses/i2c-designware-baytrail.c

1 // SPDX-License-Identifier: GPL-2.0
3  * Intel BayTrail PMIC I2C bus semaphore implementation
8 #include <linux/i2c.h>
13 #include "i2c-designware-core.h"
21 	if (!dev || !dev->dev)  in i2c_dw_probe_lock_support()
24 	handle = ACPI_HANDLE(dev->dev);  in i2c_dw_probe_lock_support()
36 		return -EPROBE_DEFER;  in i2c_dw_probe_lock_support()
38 	dev_info(dev->dev, "I2C bus managed by PUNIT\n");  in i2c_dw_probe_lock_support()
39 	dev->acquire_lock = iosf_mbi_block_punit_i2c_access;  in i2c_dw_probe_lock_support()
40 	dev->release_lock = iosf_mbi_unblock_punit_i2c_access;  in i2c_dw_probe_lock_support()
41 	dev->shared_with_punit = true;  in i2c_dw_probe_lock_support()