1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Copyright (c) 2018 Fuzhou Rockchip Electronics Co., Ltd 4*4882a593Smuzhiyun */ 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun #include <common.h> 7*4882a593Smuzhiyun #include <console.h> 8*4882a593Smuzhiyun #include <dvfs.h> 9*4882a593Smuzhiyun dvfs_apply(struct udevice * dev)10*4882a593Smuzhiyunint dvfs_apply(struct udevice *dev) 11*4882a593Smuzhiyun { 12*4882a593Smuzhiyun const struct dm_dvfs_ops *ops = device_get_ops(dev); 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun if (!ops->apply) 15*4882a593Smuzhiyun return -ENOSYS; 16*4882a593Smuzhiyun 17*4882a593Smuzhiyun return ops->apply(dev); 18*4882a593Smuzhiyun } 19*4882a593Smuzhiyun dvfs_repeat_apply(struct udevice * dev)20*4882a593Smuzhiyunint dvfs_repeat_apply(struct udevice *dev) 21*4882a593Smuzhiyun { 22*4882a593Smuzhiyun const struct dm_dvfs_ops *ops = device_get_ops(dev); 23*4882a593Smuzhiyun 24*4882a593Smuzhiyun if (!ops->repeat_apply) 25*4882a593Smuzhiyun return -ENOSYS; 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun return ops->repeat_apply(dev); 28*4882a593Smuzhiyun } 29*4882a593Smuzhiyun dvfs_init(bool apply)30*4882a593Smuzhiyunint dvfs_init(bool apply) 31*4882a593Smuzhiyun { 32*4882a593Smuzhiyun struct udevice *dev; 33*4882a593Smuzhiyun int ret; 34*4882a593Smuzhiyun 35*4882a593Smuzhiyun ret = uclass_get_device(UCLASS_DVFS, 0, &dev); 36*4882a593Smuzhiyun if (ret) { 37*4882a593Smuzhiyun if (ret != -ENODEV) 38*4882a593Smuzhiyun printf("DVFS: Get dvfs device failed, ret=%d\n", ret); 39*4882a593Smuzhiyun return ret; 40*4882a593Smuzhiyun } 41*4882a593Smuzhiyun 42*4882a593Smuzhiyun if (apply) 43*4882a593Smuzhiyun return dvfs_apply(dev); 44*4882a593Smuzhiyun 45*4882a593Smuzhiyun return 0; 46*4882a593Smuzhiyun } 47*4882a593Smuzhiyun 48*4882a593Smuzhiyun UCLASS_DRIVER(dvfs) = { 49*4882a593Smuzhiyun .id = UCLASS_DVFS, 50*4882a593Smuzhiyun .name = "dvfs", 51*4882a593Smuzhiyun }; 52