| /* |
| * include/linux/amlogic/media/clk/gp_pll.h |
| * |
| * Copyright (C) 2017 Amlogic, Inc. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| * more details. |
| * |
| */ |
| |
| #ifndef GP_PLL_H |
| #define GP_PLL_H |
| |
| #include <linux/kernel.h> |
| #include <linux/list.h> |
| |
| #define GP_PLL_USER_FLAG_REQUEST 0x01 |
| #define GP_PLL_USER_FLAG_GRANTED 0x02 |
| |
| #define GP_PLL_USER_EVENT_YIELD 0x01 |
| #define GP_PLL_USER_EVENT_GRANT 0x02 |
| |
| struct gp_pll_user_handle_s { |
| struct list_head list; |
| const char *name; |
| u32 priority; |
| int (*callback)(struct gp_pll_user_handle_s *user, int event); |
| u32 flag; |
| }; |
| |
| extern struct gp_pll_user_handle_s *gp_pll_user_register |
| (const char *name, u32 priority, |
| int (*callback)(struct gp_pll_user_handle_s *, int)); |
| |
| extern void gp_pll_user_unregister(struct gp_pll_user_handle_s *user); |
| |
| extern void gp_pll_request(struct gp_pll_user_handle_s *user); |
| |
| extern void gp_pll_release(struct gp_pll_user_handle_s *user); |
| |
| #endif |