1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-only */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * PCC (Platform Communications Channel) methods 4*4882a593Smuzhiyun */ 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun #ifndef _PCC_H 7*4882a593Smuzhiyun #define _PCC_H 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun #include <linux/mailbox_controller.h> 10*4882a593Smuzhiyun #include <linux/mailbox_client.h> 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun #define MAX_PCC_SUBSPACES 256 13*4882a593Smuzhiyun #ifdef CONFIG_PCC 14*4882a593Smuzhiyun extern struct mbox_chan *pcc_mbox_request_channel(struct mbox_client *cl, 15*4882a593Smuzhiyun int subspace_id); 16*4882a593Smuzhiyun extern void pcc_mbox_free_channel(struct mbox_chan *chan); 17*4882a593Smuzhiyun #else pcc_mbox_request_channel(struct mbox_client * cl,int subspace_id)18*4882a593Smuzhiyunstatic inline struct mbox_chan *pcc_mbox_request_channel(struct mbox_client *cl, 19*4882a593Smuzhiyun int subspace_id) 20*4882a593Smuzhiyun { 21*4882a593Smuzhiyun return ERR_PTR(-ENODEV); 22*4882a593Smuzhiyun } pcc_mbox_free_channel(struct mbox_chan * chan)23*4882a593Smuzhiyunstatic inline void pcc_mbox_free_channel(struct mbox_chan *chan) { } 24*4882a593Smuzhiyun #endif 25*4882a593Smuzhiyun 26*4882a593Smuzhiyun #endif /* _PCC_H */ 27