| /* SPDX-License-Identifier: GPL-2.0-only |
| * |
| * Copyright (c) 2016, Fuzhou Rockchip Electronics Co., Ltd |
| * Author: Lin Huang <hl@rock-chips.com> |
| */ |
| |
| #ifndef __SOC_RK3399_DMC_H |
| #define __SOC_RK3399_DMC_H |
| |
| struct devfreq; |
| struct notifier_block; |
| |
| #define DMC_MIN_SET_RATE_NS (250 * NSEC_PER_USEC) |
| #define DMC_MIN_VBLANK_NS (DMC_MIN_SET_RATE_NS + 50 * NSEC_PER_USEC) |
| |
| #if IS_ENABLED(CONFIG_ARM_RK3399_DMC_DEVFREQ) |
| int rockchip_dmcfreq_register_clk_sync_nb(struct devfreq *devfreq, |
| struct notifier_block *nb); |
| int rockchip_dmcfreq_unregister_clk_sync_nb(struct devfreq *devfreq, |
| struct notifier_block *nb); |
| int rockchip_dmcfreq_block(struct devfreq *devfreq); |
| int rockchip_dmcfreq_unblock(struct devfreq *devfreq); |
| #else |
| static inline int rockchip_dmcfreq_register_clk_sync_nb(struct devfreq *devfreq, |
| struct notifier_block *nb) { return 0; } |
| static inline int rockchip_dmcfreq_unregister_clk_sync_nb( |
| struct devfreq *devfreq, |
| struct notifier_block *nb) { return 0; } |
| static inline int rockchip_dmcfreq_block(struct devfreq *devfreq) { return 0; } |
| static inline int rockchip_dmcfreq_unblock(struct devfreq *devfreq) |
| { return 0; } |
| #endif |
| #endif |
