1 /*
2  * Copyright (c) 2020, Google LLC. All rights reserved.
3  *
4  * SPDX-License-Identifier: BSD-3-Clause
5  */
6 
7 #ifndef SPMI_ARB_H
8 #define SPMI_ARB_H
9 
10 #include <stdint.h>
11 
12 /*******************************************************************************
13  * WARNING: This driver does not arbitrate access with the kernel. These APIs
14  * must only be called when the kernel is known to be quiesced (such as before
15  * boot or while the system is shutting down).
16  ******************************************************************************/
17 
18 /* 32-bit addresses combine (U)SID, PID and register address. */
19 
20 int spmi_arb_read8(uint32_t addr);
21 int spmi_arb_write8(uint32_t addr, uint8_t data);
22 
23 #endif /* SPMI_ARB_H */
24