1a8fe58ceSMaruthi Bayyavarapu /* 2a8fe58ceSMaruthi Bayyavarapu * Copyright 2015 Advanced Micro Devices, Inc. 3a8fe58ceSMaruthi Bayyavarapu * 4a8fe58ceSMaruthi Bayyavarapu * Permission is hereby granted, free of charge, to any person obtaining a 5a8fe58ceSMaruthi Bayyavarapu * copy of this software and associated documentation files (the "Software"), 6a8fe58ceSMaruthi Bayyavarapu * to deal in the Software without restriction, including without limitation 7a8fe58ceSMaruthi Bayyavarapu * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8a8fe58ceSMaruthi Bayyavarapu * and/or sell copies of the Software, and to permit persons to whom the 9a8fe58ceSMaruthi Bayyavarapu * Software is furnished to do so, subject to the following conditions: 10a8fe58ceSMaruthi Bayyavarapu * 11a8fe58ceSMaruthi Bayyavarapu * The above copyright notice and this permission notice shall be included in 12a8fe58ceSMaruthi Bayyavarapu * all copies or substantial portions of the Software. 13a8fe58ceSMaruthi Bayyavarapu * 14a8fe58ceSMaruthi Bayyavarapu * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15a8fe58ceSMaruthi Bayyavarapu * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16a8fe58ceSMaruthi Bayyavarapu * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17a8fe58ceSMaruthi Bayyavarapu * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18a8fe58ceSMaruthi Bayyavarapu * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19a8fe58ceSMaruthi Bayyavarapu * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20a8fe58ceSMaruthi Bayyavarapu * OTHER DEALINGS IN THE SOFTWARE. 21a8fe58ceSMaruthi Bayyavarapu * 22a8fe58ceSMaruthi Bayyavarapu * Authors: AMD 23a8fe58ceSMaruthi Bayyavarapu * 24a8fe58ceSMaruthi Bayyavarapu */ 25a8fe58ceSMaruthi Bayyavarapu 26a8fe58ceSMaruthi Bayyavarapu #include <linux/irqdomain.h> 27a8fe58ceSMaruthi Bayyavarapu #include <linux/platform_device.h> 28a8fe58ceSMaruthi Bayyavarapu #include <sound/designware_i2s.h> 29a8fe58ceSMaruthi Bayyavarapu #include <sound/pcm.h> 30a8fe58ceSMaruthi Bayyavarapu 31a8fe58ceSMaruthi Bayyavarapu #include "amdgpu.h" 32a8fe58ceSMaruthi Bayyavarapu #include "atom.h" 33a8fe58ceSMaruthi Bayyavarapu #include "amdgpu_acp.h" 34a8fe58ceSMaruthi Bayyavarapu 35a8fe58ceSMaruthi Bayyavarapu #include "acp_gfx_if.h" 36a8fe58ceSMaruthi Bayyavarapu 37a8fe58ceSMaruthi Bayyavarapu #define ACP_TILE_ON_MASK 0x03 38a8fe58ceSMaruthi Bayyavarapu #define ACP_TILE_OFF_MASK 0x02 39a8fe58ceSMaruthi Bayyavarapu #define ACP_TILE_ON_RETAIN_REG_MASK 0x1f 40a8fe58ceSMaruthi Bayyavarapu #define ACP_TILE_OFF_RETAIN_REG_MASK 0x20 41a8fe58ceSMaruthi Bayyavarapu 42a8fe58ceSMaruthi Bayyavarapu #define ACP_TILE_P1_MASK 0x3e 43a8fe58ceSMaruthi Bayyavarapu #define ACP_TILE_P2_MASK 0x3d 44a8fe58ceSMaruthi Bayyavarapu #define ACP_TILE_DSP0_MASK 0x3b 45a8fe58ceSMaruthi Bayyavarapu #define ACP_TILE_DSP1_MASK 0x37 46a8fe58ceSMaruthi Bayyavarapu 47a8fe58ceSMaruthi Bayyavarapu #define ACP_TILE_DSP2_MASK 0x2f 48a8fe58ceSMaruthi Bayyavarapu 49a8fe58ceSMaruthi Bayyavarapu #define ACP_DMA_REGS_END 0x146c0 50a8fe58ceSMaruthi Bayyavarapu #define ACP_I2S_PLAY_REGS_START 0x14840 51a8fe58ceSMaruthi Bayyavarapu #define ACP_I2S_PLAY_REGS_END 0x148b4 52a8fe58ceSMaruthi Bayyavarapu #define ACP_I2S_CAP_REGS_START 0x148b8 53a8fe58ceSMaruthi Bayyavarapu #define ACP_I2S_CAP_REGS_END 0x1496c 54a8fe58ceSMaruthi Bayyavarapu 55a8fe58ceSMaruthi Bayyavarapu #define ACP_I2S_COMP1_CAP_REG_OFFSET 0xac 56a8fe58ceSMaruthi Bayyavarapu #define ACP_I2S_COMP2_CAP_REG_OFFSET 0xa8 57a8fe58ceSMaruthi Bayyavarapu #define ACP_I2S_COMP1_PLAY_REG_OFFSET 0x6c 58a8fe58ceSMaruthi Bayyavarapu #define ACP_I2S_COMP2_PLAY_REG_OFFSET 0x68 59a8fe58ceSMaruthi Bayyavarapu 60a8fe58ceSMaruthi Bayyavarapu #define mmACP_PGFSM_RETAIN_REG 0x51c9 61a8fe58ceSMaruthi Bayyavarapu #define mmACP_PGFSM_CONFIG_REG 0x51ca 62a8fe58ceSMaruthi Bayyavarapu #define mmACP_PGFSM_READ_REG_0 0x51cc 63a8fe58ceSMaruthi Bayyavarapu 64a8fe58ceSMaruthi Bayyavarapu #define mmACP_MEM_SHUT_DOWN_REQ_LO 0x51f8 65a8fe58ceSMaruthi Bayyavarapu #define mmACP_MEM_SHUT_DOWN_REQ_HI 0x51f9 66a8fe58ceSMaruthi Bayyavarapu #define mmACP_MEM_SHUT_DOWN_STS_LO 0x51fa 67a8fe58ceSMaruthi Bayyavarapu #define mmACP_MEM_SHUT_DOWN_STS_HI 0x51fb 68a8fe58ceSMaruthi Bayyavarapu 69a8fe58ceSMaruthi Bayyavarapu #define ACP_TIMEOUT_LOOP 0x000000FF 70a8fe58ceSMaruthi Bayyavarapu #define ACP_DEVS 3 71a8fe58ceSMaruthi Bayyavarapu #define ACP_SRC_ID 162 72a8fe58ceSMaruthi Bayyavarapu 73a8fe58ceSMaruthi Bayyavarapu enum { 74a8fe58ceSMaruthi Bayyavarapu ACP_TILE_P1 = 0, 75a8fe58ceSMaruthi Bayyavarapu ACP_TILE_P2, 76a8fe58ceSMaruthi Bayyavarapu ACP_TILE_DSP0, 77a8fe58ceSMaruthi Bayyavarapu ACP_TILE_DSP1, 78a8fe58ceSMaruthi Bayyavarapu ACP_TILE_DSP2, 79a8fe58ceSMaruthi Bayyavarapu }; 80a8fe58ceSMaruthi Bayyavarapu 81a8fe58ceSMaruthi Bayyavarapu static int acp_sw_init(void *handle) 82a8fe58ceSMaruthi Bayyavarapu { 83a8fe58ceSMaruthi Bayyavarapu struct amdgpu_device *adev = (struct amdgpu_device *)handle; 84a8fe58ceSMaruthi Bayyavarapu 85a8fe58ceSMaruthi Bayyavarapu adev->acp.parent = adev->dev; 86a8fe58ceSMaruthi Bayyavarapu 87a8fe58ceSMaruthi Bayyavarapu adev->acp.cgs_device = 88a8fe58ceSMaruthi Bayyavarapu amdgpu_cgs_create_device(adev); 89a8fe58ceSMaruthi Bayyavarapu if (!adev->acp.cgs_device) 90a8fe58ceSMaruthi Bayyavarapu return -EINVAL; 91a8fe58ceSMaruthi Bayyavarapu 92a8fe58ceSMaruthi Bayyavarapu return 0; 93a8fe58ceSMaruthi Bayyavarapu } 94a8fe58ceSMaruthi Bayyavarapu 95a8fe58ceSMaruthi Bayyavarapu static int acp_sw_fini(void *handle) 96a8fe58ceSMaruthi Bayyavarapu { 97a8fe58ceSMaruthi Bayyavarapu struct amdgpu_device *adev = (struct amdgpu_device *)handle; 98a8fe58ceSMaruthi Bayyavarapu 99a8fe58ceSMaruthi Bayyavarapu if (adev->acp.cgs_device) 100a8fe58ceSMaruthi Bayyavarapu amdgpu_cgs_destroy_device(adev->acp.cgs_device); 101a8fe58ceSMaruthi Bayyavarapu 102a8fe58ceSMaruthi Bayyavarapu return 0; 103a8fe58ceSMaruthi Bayyavarapu } 104a8fe58ceSMaruthi Bayyavarapu 105a8fe58ceSMaruthi Bayyavarapu /** 106a8fe58ceSMaruthi Bayyavarapu * acp_hw_init - start and test ACP block 107a8fe58ceSMaruthi Bayyavarapu * 108a8fe58ceSMaruthi Bayyavarapu * @adev: amdgpu_device pointer 109a8fe58ceSMaruthi Bayyavarapu * 110a8fe58ceSMaruthi Bayyavarapu */ 111a8fe58ceSMaruthi Bayyavarapu static int acp_hw_init(void *handle) 112a8fe58ceSMaruthi Bayyavarapu { 113a8fe58ceSMaruthi Bayyavarapu int r; 114a8fe58ceSMaruthi Bayyavarapu uint64_t acp_base; 115a8fe58ceSMaruthi Bayyavarapu struct i2s_platform_data *i2s_pdata; 116a8fe58ceSMaruthi Bayyavarapu 117a8fe58ceSMaruthi Bayyavarapu struct amdgpu_device *adev = (struct amdgpu_device *)handle; 118a8fe58ceSMaruthi Bayyavarapu 119a8fe58ceSMaruthi Bayyavarapu const struct amdgpu_ip_block_version *ip_version = 120a8fe58ceSMaruthi Bayyavarapu amdgpu_get_ip_block(adev, AMD_IP_BLOCK_TYPE_ACP); 121a8fe58ceSMaruthi Bayyavarapu 122a8fe58ceSMaruthi Bayyavarapu if (!ip_version) 123a8fe58ceSMaruthi Bayyavarapu return -EINVAL; 124a8fe58ceSMaruthi Bayyavarapu 125a8fe58ceSMaruthi Bayyavarapu r = amd_acp_hw_init(adev->acp.cgs_device, 126a8fe58ceSMaruthi Bayyavarapu ip_version->major, ip_version->minor); 127a8fe58ceSMaruthi Bayyavarapu /* -ENODEV means board uses AZ rather than ACP */ 128a8fe58ceSMaruthi Bayyavarapu if (r == -ENODEV) 129a8fe58ceSMaruthi Bayyavarapu return 0; 130a8fe58ceSMaruthi Bayyavarapu else if (r) 131a8fe58ceSMaruthi Bayyavarapu return r; 132a8fe58ceSMaruthi Bayyavarapu 133a8fe58ceSMaruthi Bayyavarapu r = cgs_get_pci_resource(adev->acp.cgs_device, CGS_RESOURCE_TYPE_MMIO, 134a8fe58ceSMaruthi Bayyavarapu 0x5289, 0, &acp_base); 135a8fe58ceSMaruthi Bayyavarapu if (r == -ENODEV) 136a8fe58ceSMaruthi Bayyavarapu return 0; 137a8fe58ceSMaruthi Bayyavarapu else if (r) 138a8fe58ceSMaruthi Bayyavarapu return r; 139a8fe58ceSMaruthi Bayyavarapu 140a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_cell = kzalloc(sizeof(struct mfd_cell) * ACP_DEVS, 141a8fe58ceSMaruthi Bayyavarapu GFP_KERNEL); 142a8fe58ceSMaruthi Bayyavarapu 143a8fe58ceSMaruthi Bayyavarapu if (adev->acp.acp_cell == NULL) 144a8fe58ceSMaruthi Bayyavarapu return -ENOMEM; 145a8fe58ceSMaruthi Bayyavarapu 146a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_res = kzalloc(sizeof(struct resource) * 4, GFP_KERNEL); 147a8fe58ceSMaruthi Bayyavarapu 148a8fe58ceSMaruthi Bayyavarapu if (adev->acp.acp_res == NULL) { 149a8fe58ceSMaruthi Bayyavarapu kfree(adev->acp.acp_cell); 150a8fe58ceSMaruthi Bayyavarapu return -ENOMEM; 151a8fe58ceSMaruthi Bayyavarapu } 152a8fe58ceSMaruthi Bayyavarapu 153a8fe58ceSMaruthi Bayyavarapu i2s_pdata = kzalloc(sizeof(struct i2s_platform_data) * 2, GFP_KERNEL); 154a8fe58ceSMaruthi Bayyavarapu if (i2s_pdata == NULL) { 155a8fe58ceSMaruthi Bayyavarapu kfree(adev->acp.acp_res); 156a8fe58ceSMaruthi Bayyavarapu kfree(adev->acp.acp_cell); 157a8fe58ceSMaruthi Bayyavarapu return -ENOMEM; 158a8fe58ceSMaruthi Bayyavarapu } 159a8fe58ceSMaruthi Bayyavarapu 160a8fe58ceSMaruthi Bayyavarapu i2s_pdata[0].quirks = DW_I2S_QUIRK_COMP_REG_OFFSET; 161a8fe58ceSMaruthi Bayyavarapu i2s_pdata[0].cap = DWC_I2S_PLAY; 162a8fe58ceSMaruthi Bayyavarapu i2s_pdata[0].snd_rates = SNDRV_PCM_RATE_8000_96000; 163a8fe58ceSMaruthi Bayyavarapu i2s_pdata[0].i2s_reg_comp1 = ACP_I2S_COMP1_PLAY_REG_OFFSET; 164a8fe58ceSMaruthi Bayyavarapu i2s_pdata[0].i2s_reg_comp2 = ACP_I2S_COMP2_PLAY_REG_OFFSET; 165a8fe58ceSMaruthi Bayyavarapu 166a8fe58ceSMaruthi Bayyavarapu i2s_pdata[1].quirks = DW_I2S_QUIRK_COMP_REG_OFFSET | 167a8fe58ceSMaruthi Bayyavarapu DW_I2S_QUIRK_COMP_PARAM1; 168a8fe58ceSMaruthi Bayyavarapu i2s_pdata[1].cap = DWC_I2S_RECORD; 169a8fe58ceSMaruthi Bayyavarapu i2s_pdata[1].snd_rates = SNDRV_PCM_RATE_8000_96000; 170a8fe58ceSMaruthi Bayyavarapu i2s_pdata[1].i2s_reg_comp1 = ACP_I2S_COMP1_CAP_REG_OFFSET; 171a8fe58ceSMaruthi Bayyavarapu i2s_pdata[1].i2s_reg_comp2 = ACP_I2S_COMP2_CAP_REG_OFFSET; 172a8fe58ceSMaruthi Bayyavarapu 173a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_res[0].name = "acp2x_dma"; 174a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_res[0].flags = IORESOURCE_MEM; 175a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_res[0].start = acp_base; 176a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_res[0].end = acp_base + ACP_DMA_REGS_END; 177a8fe58ceSMaruthi Bayyavarapu 178a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_res[1].name = "acp2x_dw_i2s_play"; 179a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_res[1].flags = IORESOURCE_MEM; 180a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_res[1].start = acp_base + ACP_I2S_PLAY_REGS_START; 181a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_res[1].end = acp_base + ACP_I2S_PLAY_REGS_END; 182a8fe58ceSMaruthi Bayyavarapu 183a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_res[2].name = "acp2x_dw_i2s_cap"; 184a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_res[2].flags = IORESOURCE_MEM; 185a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_res[2].start = acp_base + ACP_I2S_CAP_REGS_START; 186a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_res[2].end = acp_base + ACP_I2S_CAP_REGS_END; 187a8fe58ceSMaruthi Bayyavarapu 188a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_res[3].name = "acp2x_dma_irq"; 189a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_res[3].flags = IORESOURCE_IRQ; 190a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_res[3].start = amdgpu_irq_create_mapping(adev, 162); 191a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_res[3].end = adev->acp.acp_res[3].start; 192a8fe58ceSMaruthi Bayyavarapu 193a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_cell[0].name = "acp_audio_dma"; 194a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_cell[0].num_resources = 4; 195a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_cell[0].resources = &adev->acp.acp_res[0]; 196a8fe58ceSMaruthi Bayyavarapu 197a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_cell[1].name = "designware-i2s"; 198a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_cell[1].num_resources = 1; 199a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_cell[1].resources = &adev->acp.acp_res[1]; 200a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_cell[1].platform_data = &i2s_pdata[0]; 201a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_cell[1].pdata_size = sizeof(struct i2s_platform_data); 202a8fe58ceSMaruthi Bayyavarapu 203a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_cell[2].name = "designware-i2s"; 204a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_cell[2].num_resources = 1; 205a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_cell[2].resources = &adev->acp.acp_res[2]; 206a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_cell[2].platform_data = &i2s_pdata[1]; 207a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_cell[2].pdata_size = sizeof(struct i2s_platform_data); 208a8fe58ceSMaruthi Bayyavarapu 209a8fe58ceSMaruthi Bayyavarapu r = mfd_add_hotplug_devices(adev->acp.parent, adev->acp.acp_cell, 210a8fe58ceSMaruthi Bayyavarapu ACP_DEVS); 211a8fe58ceSMaruthi Bayyavarapu if (r) 212a8fe58ceSMaruthi Bayyavarapu return r; 213a8fe58ceSMaruthi Bayyavarapu 214a8fe58ceSMaruthi Bayyavarapu return 0; 215a8fe58ceSMaruthi Bayyavarapu } 216a8fe58ceSMaruthi Bayyavarapu 217a8fe58ceSMaruthi Bayyavarapu /** 218a8fe58ceSMaruthi Bayyavarapu * acp_hw_fini - stop the hardware block 219a8fe58ceSMaruthi Bayyavarapu * 220a8fe58ceSMaruthi Bayyavarapu * @adev: amdgpu_device pointer 221a8fe58ceSMaruthi Bayyavarapu * 222a8fe58ceSMaruthi Bayyavarapu */ 223a8fe58ceSMaruthi Bayyavarapu static int acp_hw_fini(void *handle) 224a8fe58ceSMaruthi Bayyavarapu { 225a8fe58ceSMaruthi Bayyavarapu struct amdgpu_device *adev = (struct amdgpu_device *)handle; 226a8fe58ceSMaruthi Bayyavarapu 227a8fe58ceSMaruthi Bayyavarapu mfd_remove_devices(adev->acp.parent); 228a8fe58ceSMaruthi Bayyavarapu kfree(adev->acp.acp_res); 229a8fe58ceSMaruthi Bayyavarapu kfree(adev->acp.acp_cell); 230a8fe58ceSMaruthi Bayyavarapu 231a8fe58ceSMaruthi Bayyavarapu return 0; 232a8fe58ceSMaruthi Bayyavarapu } 233a8fe58ceSMaruthi Bayyavarapu 234a8fe58ceSMaruthi Bayyavarapu static int acp_suspend(void *handle) 235a8fe58ceSMaruthi Bayyavarapu { 236a8fe58ceSMaruthi Bayyavarapu return 0; 237a8fe58ceSMaruthi Bayyavarapu } 238a8fe58ceSMaruthi Bayyavarapu 239a8fe58ceSMaruthi Bayyavarapu static int acp_resume(void *handle) 240a8fe58ceSMaruthi Bayyavarapu { 241a8fe58ceSMaruthi Bayyavarapu return 0; 242a8fe58ceSMaruthi Bayyavarapu } 243a8fe58ceSMaruthi Bayyavarapu 244a8fe58ceSMaruthi Bayyavarapu static int acp_early_init(void *handle) 245a8fe58ceSMaruthi Bayyavarapu { 246a8fe58ceSMaruthi Bayyavarapu return 0; 247a8fe58ceSMaruthi Bayyavarapu } 248a8fe58ceSMaruthi Bayyavarapu 249a8fe58ceSMaruthi Bayyavarapu static bool acp_is_idle(void *handle) 250a8fe58ceSMaruthi Bayyavarapu { 251a8fe58ceSMaruthi Bayyavarapu return true; 252a8fe58ceSMaruthi Bayyavarapu } 253a8fe58ceSMaruthi Bayyavarapu 254a8fe58ceSMaruthi Bayyavarapu static int acp_wait_for_idle(void *handle) 255a8fe58ceSMaruthi Bayyavarapu { 256a8fe58ceSMaruthi Bayyavarapu return 0; 257a8fe58ceSMaruthi Bayyavarapu } 258a8fe58ceSMaruthi Bayyavarapu 259a8fe58ceSMaruthi Bayyavarapu static int acp_soft_reset(void *handle) 260a8fe58ceSMaruthi Bayyavarapu { 261a8fe58ceSMaruthi Bayyavarapu return 0; 262a8fe58ceSMaruthi Bayyavarapu } 263a8fe58ceSMaruthi Bayyavarapu 264a8fe58ceSMaruthi Bayyavarapu static void acp_print_status(void *handle) 265a8fe58ceSMaruthi Bayyavarapu { 266a8fe58ceSMaruthi Bayyavarapu struct amdgpu_device *adev = (struct amdgpu_device *)handle; 267a8fe58ceSMaruthi Bayyavarapu 268a8fe58ceSMaruthi Bayyavarapu dev_info(adev->dev, "ACP STATUS\n"); 269a8fe58ceSMaruthi Bayyavarapu } 270a8fe58ceSMaruthi Bayyavarapu 271a8fe58ceSMaruthi Bayyavarapu static int acp_set_clockgating_state(void *handle, 272a8fe58ceSMaruthi Bayyavarapu enum amd_clockgating_state state) 273a8fe58ceSMaruthi Bayyavarapu { 274a8fe58ceSMaruthi Bayyavarapu return 0; 275a8fe58ceSMaruthi Bayyavarapu } 276a8fe58ceSMaruthi Bayyavarapu 277a8fe58ceSMaruthi Bayyavarapu static int acp_set_powergating_state(void *handle, 278a8fe58ceSMaruthi Bayyavarapu enum amd_powergating_state state) 279a8fe58ceSMaruthi Bayyavarapu { 280a8fe58ceSMaruthi Bayyavarapu return 0; 281a8fe58ceSMaruthi Bayyavarapu } 282a8fe58ceSMaruthi Bayyavarapu 283a8fe58ceSMaruthi Bayyavarapu const struct amd_ip_funcs acp_ip_funcs = { 284a8fe58ceSMaruthi Bayyavarapu .early_init = acp_early_init, 285a8fe58ceSMaruthi Bayyavarapu .late_init = NULL, 286a8fe58ceSMaruthi Bayyavarapu .sw_init = acp_sw_init, 287a8fe58ceSMaruthi Bayyavarapu .sw_fini = acp_sw_fini, 288a8fe58ceSMaruthi Bayyavarapu .hw_init = acp_hw_init, 289a8fe58ceSMaruthi Bayyavarapu .hw_fini = acp_hw_fini, 290a8fe58ceSMaruthi Bayyavarapu .suspend = acp_suspend, 291a8fe58ceSMaruthi Bayyavarapu .resume = acp_resume, 292a8fe58ceSMaruthi Bayyavarapu .is_idle = acp_is_idle, 293a8fe58ceSMaruthi Bayyavarapu .wait_for_idle = acp_wait_for_idle, 294a8fe58ceSMaruthi Bayyavarapu .soft_reset = acp_soft_reset, 295a8fe58ceSMaruthi Bayyavarapu .print_status = acp_print_status, 296a8fe58ceSMaruthi Bayyavarapu .set_clockgating_state = acp_set_clockgating_state, 297a8fe58ceSMaruthi Bayyavarapu .set_powergating_state = acp_set_powergating_state, 298a8fe58ceSMaruthi Bayyavarapu }; 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