blob: e7ab77ed7213a49f15904eddd8de1af5cfc8264f
| 1 | /* |
| 2 | * drivers/amlogic/media/frame_provider/decoder/utils/vdec_power_ctrl.h |
| 3 | * |
| 4 | * Copyright (C) 2016 Amlogic, Inc. All rights reserved. |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 14 | * more details. |
| 15 | * |
| 16 | */ |
| 17 | |
| 18 | #include <linux/kernel.h> |
| 19 | #include <linux/types.h> |
| 20 | #include <linux/errno.h> |
| 21 | #include <linux/of.h> |
| 22 | #include <linux/of_fdt.h> |
| 23 | #include <linux/of_device.h> |
| 24 | #include <linux/module.h> |
| 25 | #include <linux/delay.h> |
| 26 | #include <linux/version.h> |
| 27 | #include <linux/device.h> |
| 28 | #include <linux/platform_device.h> |
| 29 | #include <linux/pm.h> |
| 30 | #include <linux/pm_domain.h> |
| 31 | #include <linux/pm_runtime.h> |
| 32 | #include "vdec.h" |
| 33 | |
| 34 | /* Directly controlled by reading and writing registers. */ |
| 35 | #define PM_POWER_CTRL_RW_REG (0) |
| 36 | |
| 37 | /* Use power_ctrl_xxx family of interface controls. */ |
| 38 | #define PM_POWER_CTRL_API (1) |
| 39 | |
| 40 | /* |
| 41 | * Power Domain interface control, currently supported |
| 42 | * in versions 4.19 and above. |
| 43 | */ |
| 44 | #define PM_POWER_DOMAIN (2) |
| 45 | |
| 46 | /* |
| 47 | * Controlled by the secure API provided by power domain, |
| 48 | * version 4.9 supports currently supported platforms (SC2). |
| 49 | */ |
| 50 | #define PM_POWER_DOMAIN_SEC_API (3) |
| 51 | |
| 52 | /* |
| 53 | * Use non-secure API control through power domain, version 4.9 support, |
| 54 | * currently supported platforms (SM1, TM2, TM2-revB). |
| 55 | */ |
| 56 | #define PM_POWER_DOMAIN_NONSEC_API (4) |
| 57 | |
| 58 | enum pm_pd_e { |
| 59 | PD_VDEC, |
| 60 | PD_HCODEC, |
| 61 | PD_VDEC2, |
| 62 | PD_HEVC, |
| 63 | PD_HEVCB, |
| 64 | PD_WAVE, |
| 65 | PD_MAX |
| 66 | }; |
| 67 | |
| 68 | struct pm_pd_s { |
| 69 | u8 *name; |
| 70 | struct device *dev; |
| 71 | struct device_link *link; |
| 72 | }; |
| 73 | |
| 74 | struct power_manager_s { |
| 75 | int pm_type; |
| 76 | struct pm_pd_s *pd_data; |
| 77 | int (*init) (struct device *dev); |
| 78 | void (*release) (struct device *dev); |
| 79 | void (*power_on) (struct device *dev, int id); |
| 80 | void (*power_off) (struct device *dev, int id); |
| 81 | bool (*power_state) (struct device *dev, int id); |
| 82 | }; |
| 83 | |
| 84 | const char *get_pm_name(int type); |
| 85 | |
| 86 | #if LINUX_VERSION_CODE < KERNEL_VERSION(4, 19, 0) |
| 87 | #define DL_FLAG_STATELESS BIT(0) |
| 88 | #define DL_FLAG_AUTOREMOVE_CONSUMER BIT(1) |
| 89 | #define DL_FLAG_PM_RUNTIME BIT(2) |
| 90 | #define DL_FLAG_RPM_ACTIVE BIT(3) |
| 91 | #define DL_FLAG_AUTOREMOVE_SUPPLIER BIT(4) |
| 92 | |
| 93 | struct device_link { |
| 94 | u32 flags; |
| 95 | /* ... */ |
| 96 | }; |
| 97 | |
| 98 | static inline struct device *dev_pm_domain_attach_by_name(struct device *dev, |
| 99 | const char *name) |
| 100 | { return NULL; } |
| 101 | static inline struct device_link *device_link_add(struct device *consumer, |
| 102 | struct device *supplier, u32 flags) |
| 103 | { return NULL; } |
| 104 | static inline void device_link_del(struct device_link *link) { return; } |
| 105 | static inline void device_link_remove(void *consumer, struct device *supplier) { return; } |
| 106 | #endif |
| 107 | |
| 108 |