1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Copyright 2021 Linaro Limited 4 * 5 * Author: Daniel Lezcano <daniel.lezcano@linaro.org> 6 * 7 * DTPM hierarchy description 8 */ 9 #include <linux/dtpm.h> 10 #include <linux/module.h> 11 #include <linux/of.h> 12 #include <linux/platform_device.h> 13 14 static struct dtpm_node __initdata rk3399_hierarchy[] = { 15 [0]{ .name = "rk3399", 16 .type = DTPM_NODE_VIRTUAL }, 17 [1]{ .name = "package", 18 .type = DTPM_NODE_VIRTUAL, 19 .parent = &rk3399_hierarchy[0] }, 20 [2]{ .name = "/cpus/cpu@0", 21 .type = DTPM_NODE_DT, 22 .parent = &rk3399_hierarchy[1] }, 23 [3]{ .name = "/cpus/cpu@1", 24 .type = DTPM_NODE_DT, 25 .parent = &rk3399_hierarchy[1] }, 26 [4]{ .name = "/cpus/cpu@2", 27 .type = DTPM_NODE_DT, 28 .parent = &rk3399_hierarchy[1] }, 29 [5]{ .name = "/cpus/cpu@3", 30 .type = DTPM_NODE_DT, 31 .parent = &rk3399_hierarchy[1] }, 32 [6]{ .name = "/cpus/cpu@100", 33 .type = DTPM_NODE_DT, 34 .parent = &rk3399_hierarchy[1] }, 35 [7]{ .name = "/cpus/cpu@101", 36 .type = DTPM_NODE_DT, 37 .parent = &rk3399_hierarchy[1] }, 38 [8]{ .name = "/gpu@ff9a0000", 39 .type = DTPM_NODE_DT, 40 .parent = &rk3399_hierarchy[1] }, 41 [9]{ /* sentinel */ } 42 }; 43 44 static struct of_device_id __initdata rockchip_dtpm_match_table[] = { 45 { .compatible = "rockchip,rk3399", .data = rk3399_hierarchy }, 46 {}, 47 }; 48 49 static int __init rockchip_dtpm_init(void) 50 { 51 return dtpm_create_hierarchy(rockchip_dtpm_match_table); 52 } 53 module_init(rockchip_dtpm_init); 54 55 static void __exit rockchip_dtpm_exit(void) 56 { 57 return dtpm_destroy_hierarchy(); 58 } 59 module_exit(rockchip_dtpm_exit); 60 61 MODULE_SOFTDEP("pre: panfrost cpufreq-dt"); 62 MODULE_DESCRIPTION("Rockchip DTPM driver"); 63 MODULE_LICENSE("GPL"); 64 MODULE_ALIAS("platform:dtpm"); 65 MODULE_AUTHOR("Daniel Lezcano <daniel.lezcano@kernel.org"); 66