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> 2725030321SMaruthi Srinivas Bayyavarapu #include <linux/pm_domain.h> 28a8fe58ceSMaruthi Bayyavarapu #include <linux/platform_device.h> 29a8fe58ceSMaruthi Bayyavarapu #include <sound/designware_i2s.h> 30a8fe58ceSMaruthi Bayyavarapu #include <sound/pcm.h> 31a8fe58ceSMaruthi Bayyavarapu 32a8fe58ceSMaruthi Bayyavarapu #include "amdgpu.h" 33a8fe58ceSMaruthi Bayyavarapu #include "atom.h" 34a8fe58ceSMaruthi Bayyavarapu #include "amdgpu_acp.h" 35a8fe58ceSMaruthi Bayyavarapu 36a8fe58ceSMaruthi Bayyavarapu #include "acp_gfx_if.h" 37a8fe58ceSMaruthi Bayyavarapu 38a8fe58ceSMaruthi Bayyavarapu #define ACP_TILE_ON_MASK 0x03 39a8fe58ceSMaruthi Bayyavarapu #define ACP_TILE_OFF_MASK 0x02 40a8fe58ceSMaruthi Bayyavarapu #define ACP_TILE_ON_RETAIN_REG_MASK 0x1f 41a8fe58ceSMaruthi Bayyavarapu #define ACP_TILE_OFF_RETAIN_REG_MASK 0x20 42a8fe58ceSMaruthi Bayyavarapu 43a8fe58ceSMaruthi Bayyavarapu #define ACP_TILE_P1_MASK 0x3e 44a8fe58ceSMaruthi Bayyavarapu #define ACP_TILE_P2_MASK 0x3d 45a8fe58ceSMaruthi Bayyavarapu #define ACP_TILE_DSP0_MASK 0x3b 46a8fe58ceSMaruthi Bayyavarapu #define ACP_TILE_DSP1_MASK 0x37 47a8fe58ceSMaruthi Bayyavarapu 48a8fe58ceSMaruthi Bayyavarapu #define ACP_TILE_DSP2_MASK 0x2f 49a8fe58ceSMaruthi Bayyavarapu 50a8fe58ceSMaruthi Bayyavarapu #define ACP_DMA_REGS_END 0x146c0 51a8fe58ceSMaruthi Bayyavarapu #define ACP_I2S_PLAY_REGS_START 0x14840 52a8fe58ceSMaruthi Bayyavarapu #define ACP_I2S_PLAY_REGS_END 0x148b4 53a8fe58ceSMaruthi Bayyavarapu #define ACP_I2S_CAP_REGS_START 0x148b8 54a8fe58ceSMaruthi Bayyavarapu #define ACP_I2S_CAP_REGS_END 0x1496c 55a8fe58ceSMaruthi Bayyavarapu 56a8fe58ceSMaruthi Bayyavarapu #define ACP_I2S_COMP1_CAP_REG_OFFSET 0xac 57a8fe58ceSMaruthi Bayyavarapu #define ACP_I2S_COMP2_CAP_REG_OFFSET 0xa8 58a8fe58ceSMaruthi Bayyavarapu #define ACP_I2S_COMP1_PLAY_REG_OFFSET 0x6c 59a8fe58ceSMaruthi Bayyavarapu #define ACP_I2S_COMP2_PLAY_REG_OFFSET 0x68 60a8fe58ceSMaruthi Bayyavarapu 61a8fe58ceSMaruthi Bayyavarapu #define mmACP_PGFSM_RETAIN_REG 0x51c9 62a8fe58ceSMaruthi Bayyavarapu #define mmACP_PGFSM_CONFIG_REG 0x51ca 63a8fe58ceSMaruthi Bayyavarapu #define mmACP_PGFSM_READ_REG_0 0x51cc 64a8fe58ceSMaruthi Bayyavarapu 65a8fe58ceSMaruthi Bayyavarapu #define mmACP_MEM_SHUT_DOWN_REQ_LO 0x51f8 66a8fe58ceSMaruthi Bayyavarapu #define mmACP_MEM_SHUT_DOWN_REQ_HI 0x51f9 67a8fe58ceSMaruthi Bayyavarapu #define mmACP_MEM_SHUT_DOWN_STS_LO 0x51fa 68a8fe58ceSMaruthi Bayyavarapu #define mmACP_MEM_SHUT_DOWN_STS_HI 0x51fb 69a8fe58ceSMaruthi Bayyavarapu 70a8fe58ceSMaruthi Bayyavarapu #define ACP_TIMEOUT_LOOP 0x000000FF 71a8fe58ceSMaruthi Bayyavarapu #define ACP_DEVS 3 72a8fe58ceSMaruthi Bayyavarapu #define ACP_SRC_ID 162 73a8fe58ceSMaruthi Bayyavarapu 74a8fe58ceSMaruthi Bayyavarapu enum { 75a8fe58ceSMaruthi Bayyavarapu ACP_TILE_P1 = 0, 76a8fe58ceSMaruthi Bayyavarapu ACP_TILE_P2, 77a8fe58ceSMaruthi Bayyavarapu ACP_TILE_DSP0, 78a8fe58ceSMaruthi Bayyavarapu ACP_TILE_DSP1, 79a8fe58ceSMaruthi Bayyavarapu ACP_TILE_DSP2, 80a8fe58ceSMaruthi Bayyavarapu }; 81a8fe58ceSMaruthi Bayyavarapu 82a8fe58ceSMaruthi Bayyavarapu static int acp_sw_init(void *handle) 83a8fe58ceSMaruthi Bayyavarapu { 84a8fe58ceSMaruthi Bayyavarapu struct amdgpu_device *adev = (struct amdgpu_device *)handle; 85a8fe58ceSMaruthi Bayyavarapu 86a8fe58ceSMaruthi Bayyavarapu adev->acp.parent = adev->dev; 87a8fe58ceSMaruthi Bayyavarapu 88a8fe58ceSMaruthi Bayyavarapu adev->acp.cgs_device = 89a8fe58ceSMaruthi Bayyavarapu amdgpu_cgs_create_device(adev); 90a8fe58ceSMaruthi Bayyavarapu if (!adev->acp.cgs_device) 91a8fe58ceSMaruthi Bayyavarapu return -EINVAL; 92a8fe58ceSMaruthi Bayyavarapu 93a8fe58ceSMaruthi Bayyavarapu return 0; 94a8fe58ceSMaruthi Bayyavarapu } 95a8fe58ceSMaruthi Bayyavarapu 96a8fe58ceSMaruthi Bayyavarapu static int acp_sw_fini(void *handle) 97a8fe58ceSMaruthi Bayyavarapu { 98a8fe58ceSMaruthi Bayyavarapu struct amdgpu_device *adev = (struct amdgpu_device *)handle; 99a8fe58ceSMaruthi Bayyavarapu 100a8fe58ceSMaruthi Bayyavarapu if (adev->acp.cgs_device) 101a8fe58ceSMaruthi Bayyavarapu amdgpu_cgs_destroy_device(adev->acp.cgs_device); 102a8fe58ceSMaruthi Bayyavarapu 103a8fe58ceSMaruthi Bayyavarapu return 0; 104a8fe58ceSMaruthi Bayyavarapu } 105a8fe58ceSMaruthi Bayyavarapu 10625030321SMaruthi Srinivas Bayyavarapu /* power off a tile/block within ACP */ 10725030321SMaruthi Srinivas Bayyavarapu static int acp_suspend_tile(void *cgs_dev, int tile) 10825030321SMaruthi Srinivas Bayyavarapu { 10925030321SMaruthi Srinivas Bayyavarapu u32 val = 0; 11025030321SMaruthi Srinivas Bayyavarapu u32 count = 0; 11125030321SMaruthi Srinivas Bayyavarapu 11225030321SMaruthi Srinivas Bayyavarapu if ((tile < ACP_TILE_P1) || (tile > ACP_TILE_DSP2)) { 11325030321SMaruthi Srinivas Bayyavarapu pr_err("Invalid ACP tile : %d to suspend\n", tile); 11425030321SMaruthi Srinivas Bayyavarapu return -1; 11525030321SMaruthi Srinivas Bayyavarapu } 11625030321SMaruthi Srinivas Bayyavarapu 11725030321SMaruthi Srinivas Bayyavarapu val = cgs_read_register(cgs_dev, mmACP_PGFSM_READ_REG_0 + tile); 11825030321SMaruthi Srinivas Bayyavarapu val &= ACP_TILE_ON_MASK; 11925030321SMaruthi Srinivas Bayyavarapu 12025030321SMaruthi Srinivas Bayyavarapu if (val == 0x0) { 12125030321SMaruthi Srinivas Bayyavarapu val = cgs_read_register(cgs_dev, mmACP_PGFSM_RETAIN_REG); 12225030321SMaruthi Srinivas Bayyavarapu val = val | (1 << tile); 12325030321SMaruthi Srinivas Bayyavarapu cgs_write_register(cgs_dev, mmACP_PGFSM_RETAIN_REG, val); 12425030321SMaruthi Srinivas Bayyavarapu cgs_write_register(cgs_dev, mmACP_PGFSM_CONFIG_REG, 12525030321SMaruthi Srinivas Bayyavarapu 0x500 + tile); 12625030321SMaruthi Srinivas Bayyavarapu 12725030321SMaruthi Srinivas Bayyavarapu count = ACP_TIMEOUT_LOOP; 12825030321SMaruthi Srinivas Bayyavarapu while (true) { 12925030321SMaruthi Srinivas Bayyavarapu val = cgs_read_register(cgs_dev, mmACP_PGFSM_READ_REG_0 13025030321SMaruthi Srinivas Bayyavarapu + tile); 13125030321SMaruthi Srinivas Bayyavarapu val = val & ACP_TILE_ON_MASK; 13225030321SMaruthi Srinivas Bayyavarapu if (val == ACP_TILE_OFF_MASK) 13325030321SMaruthi Srinivas Bayyavarapu break; 13425030321SMaruthi Srinivas Bayyavarapu if (--count == 0) { 13525030321SMaruthi Srinivas Bayyavarapu pr_err("Timeout reading ACP PGFSM status\n"); 13625030321SMaruthi Srinivas Bayyavarapu return -ETIMEDOUT; 13725030321SMaruthi Srinivas Bayyavarapu } 13825030321SMaruthi Srinivas Bayyavarapu udelay(100); 13925030321SMaruthi Srinivas Bayyavarapu } 14025030321SMaruthi Srinivas Bayyavarapu 14125030321SMaruthi Srinivas Bayyavarapu val = cgs_read_register(cgs_dev, mmACP_PGFSM_RETAIN_REG); 14225030321SMaruthi Srinivas Bayyavarapu 14325030321SMaruthi Srinivas Bayyavarapu val |= ACP_TILE_OFF_RETAIN_REG_MASK; 14425030321SMaruthi Srinivas Bayyavarapu cgs_write_register(cgs_dev, mmACP_PGFSM_RETAIN_REG, val); 14525030321SMaruthi Srinivas Bayyavarapu } 14625030321SMaruthi Srinivas Bayyavarapu return 0; 14725030321SMaruthi Srinivas Bayyavarapu } 14825030321SMaruthi Srinivas Bayyavarapu 14925030321SMaruthi Srinivas Bayyavarapu /* power on a tile/block within ACP */ 15025030321SMaruthi Srinivas Bayyavarapu static int acp_resume_tile(void *cgs_dev, int tile) 15125030321SMaruthi Srinivas Bayyavarapu { 15225030321SMaruthi Srinivas Bayyavarapu u32 val = 0; 15325030321SMaruthi Srinivas Bayyavarapu u32 count = 0; 15425030321SMaruthi Srinivas Bayyavarapu 15525030321SMaruthi Srinivas Bayyavarapu if ((tile < ACP_TILE_P1) || (tile > ACP_TILE_DSP2)) { 15625030321SMaruthi Srinivas Bayyavarapu pr_err("Invalid ACP tile to resume\n"); 15725030321SMaruthi Srinivas Bayyavarapu return -1; 15825030321SMaruthi Srinivas Bayyavarapu } 15925030321SMaruthi Srinivas Bayyavarapu 16025030321SMaruthi Srinivas Bayyavarapu val = cgs_read_register(cgs_dev, mmACP_PGFSM_READ_REG_0 + tile); 16125030321SMaruthi Srinivas Bayyavarapu val = val & ACP_TILE_ON_MASK; 16225030321SMaruthi Srinivas Bayyavarapu 16325030321SMaruthi Srinivas Bayyavarapu if (val != 0x0) { 16425030321SMaruthi Srinivas Bayyavarapu cgs_write_register(cgs_dev, mmACP_PGFSM_CONFIG_REG, 16525030321SMaruthi Srinivas Bayyavarapu 0x600 + tile); 16625030321SMaruthi Srinivas Bayyavarapu count = ACP_TIMEOUT_LOOP; 16725030321SMaruthi Srinivas Bayyavarapu while (true) { 16825030321SMaruthi Srinivas Bayyavarapu val = cgs_read_register(cgs_dev, mmACP_PGFSM_READ_REG_0 16925030321SMaruthi Srinivas Bayyavarapu + tile); 17025030321SMaruthi Srinivas Bayyavarapu val = val & ACP_TILE_ON_MASK; 17125030321SMaruthi Srinivas Bayyavarapu if (val == 0x0) 17225030321SMaruthi Srinivas Bayyavarapu break; 17325030321SMaruthi Srinivas Bayyavarapu if (--count == 0) { 17425030321SMaruthi Srinivas Bayyavarapu pr_err("Timeout reading ACP PGFSM status\n"); 17525030321SMaruthi Srinivas Bayyavarapu return -ETIMEDOUT; 17625030321SMaruthi Srinivas Bayyavarapu } 17725030321SMaruthi Srinivas Bayyavarapu udelay(100); 17825030321SMaruthi Srinivas Bayyavarapu } 17925030321SMaruthi Srinivas Bayyavarapu val = cgs_read_register(cgs_dev, mmACP_PGFSM_RETAIN_REG); 18025030321SMaruthi Srinivas Bayyavarapu if (tile == ACP_TILE_P1) 18125030321SMaruthi Srinivas Bayyavarapu val = val & (ACP_TILE_P1_MASK); 18225030321SMaruthi Srinivas Bayyavarapu else if (tile == ACP_TILE_P2) 18325030321SMaruthi Srinivas Bayyavarapu val = val & (ACP_TILE_P2_MASK); 18425030321SMaruthi Srinivas Bayyavarapu 18525030321SMaruthi Srinivas Bayyavarapu cgs_write_register(cgs_dev, mmACP_PGFSM_RETAIN_REG, val); 18625030321SMaruthi Srinivas Bayyavarapu } 18725030321SMaruthi Srinivas Bayyavarapu return 0; 18825030321SMaruthi Srinivas Bayyavarapu } 18925030321SMaruthi Srinivas Bayyavarapu 19025030321SMaruthi Srinivas Bayyavarapu struct acp_pm_domain { 19125030321SMaruthi Srinivas Bayyavarapu void *cgs_dev; 19225030321SMaruthi Srinivas Bayyavarapu struct generic_pm_domain gpd; 19325030321SMaruthi Srinivas Bayyavarapu }; 19425030321SMaruthi Srinivas Bayyavarapu 19525030321SMaruthi Srinivas Bayyavarapu static int acp_poweroff(struct generic_pm_domain *genpd) 19625030321SMaruthi Srinivas Bayyavarapu { 19725030321SMaruthi Srinivas Bayyavarapu int i, ret; 19825030321SMaruthi Srinivas Bayyavarapu struct acp_pm_domain *apd; 19925030321SMaruthi Srinivas Bayyavarapu 20025030321SMaruthi Srinivas Bayyavarapu apd = container_of(genpd, struct acp_pm_domain, gpd); 20125030321SMaruthi Srinivas Bayyavarapu if (apd != NULL) { 20225030321SMaruthi Srinivas Bayyavarapu /* Donot return abruptly if any of power tile fails to suspend. 20325030321SMaruthi Srinivas Bayyavarapu * Log it and continue powering off other tile 20425030321SMaruthi Srinivas Bayyavarapu */ 20525030321SMaruthi Srinivas Bayyavarapu for (i = 4; i >= 0 ; i--) { 20625030321SMaruthi Srinivas Bayyavarapu ret = acp_suspend_tile(apd->cgs_dev, ACP_TILE_P1 + i); 20725030321SMaruthi Srinivas Bayyavarapu if (ret) 20825030321SMaruthi Srinivas Bayyavarapu pr_err("ACP tile %d tile suspend failed\n", i); 20925030321SMaruthi Srinivas Bayyavarapu } 21025030321SMaruthi Srinivas Bayyavarapu } 21125030321SMaruthi Srinivas Bayyavarapu return 0; 21225030321SMaruthi Srinivas Bayyavarapu } 21325030321SMaruthi Srinivas Bayyavarapu 21425030321SMaruthi Srinivas Bayyavarapu static int acp_poweron(struct generic_pm_domain *genpd) 21525030321SMaruthi Srinivas Bayyavarapu { 21625030321SMaruthi Srinivas Bayyavarapu int i, ret; 21725030321SMaruthi Srinivas Bayyavarapu struct acp_pm_domain *apd; 21825030321SMaruthi Srinivas Bayyavarapu 21925030321SMaruthi Srinivas Bayyavarapu apd = container_of(genpd, struct acp_pm_domain, gpd); 22025030321SMaruthi Srinivas Bayyavarapu if (apd != NULL) { 22125030321SMaruthi Srinivas Bayyavarapu for (i = 0; i < 2; i++) { 22225030321SMaruthi Srinivas Bayyavarapu ret = acp_resume_tile(apd->cgs_dev, ACP_TILE_P1 + i); 22325030321SMaruthi Srinivas Bayyavarapu if (ret) { 22425030321SMaruthi Srinivas Bayyavarapu pr_err("ACP tile %d resume failed\n", i); 22525030321SMaruthi Srinivas Bayyavarapu break; 22625030321SMaruthi Srinivas Bayyavarapu } 22725030321SMaruthi Srinivas Bayyavarapu } 22825030321SMaruthi Srinivas Bayyavarapu 22925030321SMaruthi Srinivas Bayyavarapu /* Disable DSPs which are not going to be used */ 23025030321SMaruthi Srinivas Bayyavarapu for (i = 0; i < 3; i++) { 23125030321SMaruthi Srinivas Bayyavarapu ret = acp_suspend_tile(apd->cgs_dev, ACP_TILE_DSP0 + i); 23225030321SMaruthi Srinivas Bayyavarapu /* Continue suspending other DSP, even if one fails */ 23325030321SMaruthi Srinivas Bayyavarapu if (ret) 23425030321SMaruthi Srinivas Bayyavarapu pr_err("ACP DSP %d suspend failed\n", i); 23525030321SMaruthi Srinivas Bayyavarapu } 23625030321SMaruthi Srinivas Bayyavarapu } 23725030321SMaruthi Srinivas Bayyavarapu return 0; 23825030321SMaruthi Srinivas Bayyavarapu } 23925030321SMaruthi Srinivas Bayyavarapu 24025030321SMaruthi Srinivas Bayyavarapu static struct device *get_mfd_cell_dev(const char *device_name, int r) 24125030321SMaruthi Srinivas Bayyavarapu { 24225030321SMaruthi Srinivas Bayyavarapu char auto_dev_name[25]; 24325030321SMaruthi Srinivas Bayyavarapu struct device *dev; 24425030321SMaruthi Srinivas Bayyavarapu 245a65ecc40SDan Carpenter snprintf(auto_dev_name, sizeof(auto_dev_name), 246a65ecc40SDan Carpenter "%s.%d.auto", device_name, r); 24725030321SMaruthi Srinivas Bayyavarapu dev = bus_find_device_by_name(&platform_bus_type, NULL, auto_dev_name); 24825030321SMaruthi Srinivas Bayyavarapu dev_info(dev, "device %s added to pm domain\n", auto_dev_name); 24925030321SMaruthi Srinivas Bayyavarapu 25025030321SMaruthi Srinivas Bayyavarapu return dev; 25125030321SMaruthi Srinivas Bayyavarapu } 25225030321SMaruthi Srinivas Bayyavarapu 253a8fe58ceSMaruthi Bayyavarapu /** 254a8fe58ceSMaruthi Bayyavarapu * acp_hw_init - start and test ACP block 255a8fe58ceSMaruthi Bayyavarapu * 256a8fe58ceSMaruthi Bayyavarapu * @adev: amdgpu_device pointer 257a8fe58ceSMaruthi Bayyavarapu * 258a8fe58ceSMaruthi Bayyavarapu */ 259a8fe58ceSMaruthi Bayyavarapu static int acp_hw_init(void *handle) 260a8fe58ceSMaruthi Bayyavarapu { 26125030321SMaruthi Srinivas Bayyavarapu int r, i; 262a8fe58ceSMaruthi Bayyavarapu uint64_t acp_base; 26325030321SMaruthi Srinivas Bayyavarapu struct device *dev; 264a8fe58ceSMaruthi Bayyavarapu struct i2s_platform_data *i2s_pdata; 265a8fe58ceSMaruthi Bayyavarapu 266a8fe58ceSMaruthi Bayyavarapu struct amdgpu_device *adev = (struct amdgpu_device *)handle; 267a8fe58ceSMaruthi Bayyavarapu 268a8fe58ceSMaruthi Bayyavarapu const struct amdgpu_ip_block_version *ip_version = 269a8fe58ceSMaruthi Bayyavarapu amdgpu_get_ip_block(adev, AMD_IP_BLOCK_TYPE_ACP); 270a8fe58ceSMaruthi Bayyavarapu 271a8fe58ceSMaruthi Bayyavarapu if (!ip_version) 272a8fe58ceSMaruthi Bayyavarapu return -EINVAL; 273a8fe58ceSMaruthi Bayyavarapu 274a8fe58ceSMaruthi Bayyavarapu r = amd_acp_hw_init(adev->acp.cgs_device, 275a8fe58ceSMaruthi Bayyavarapu ip_version->major, ip_version->minor); 276a8fe58ceSMaruthi Bayyavarapu /* -ENODEV means board uses AZ rather than ACP */ 277a8fe58ceSMaruthi Bayyavarapu if (r == -ENODEV) 278a8fe58ceSMaruthi Bayyavarapu return 0; 279a8fe58ceSMaruthi Bayyavarapu else if (r) 280a8fe58ceSMaruthi Bayyavarapu return r; 281a8fe58ceSMaruthi Bayyavarapu 282a8fe58ceSMaruthi Bayyavarapu r = cgs_get_pci_resource(adev->acp.cgs_device, CGS_RESOURCE_TYPE_MMIO, 283a8fe58ceSMaruthi Bayyavarapu 0x5289, 0, &acp_base); 284a8fe58ceSMaruthi Bayyavarapu if (r == -ENODEV) 285a8fe58ceSMaruthi Bayyavarapu return 0; 286a8fe58ceSMaruthi Bayyavarapu else if (r) 287a8fe58ceSMaruthi Bayyavarapu return r; 288a8fe58ceSMaruthi Bayyavarapu 28925030321SMaruthi Srinivas Bayyavarapu adev->acp.acp_genpd = kzalloc(sizeof(struct acp_pm_domain), GFP_KERNEL); 29025030321SMaruthi Srinivas Bayyavarapu if (adev->acp.acp_genpd == NULL) 29125030321SMaruthi Srinivas Bayyavarapu return -ENOMEM; 29225030321SMaruthi Srinivas Bayyavarapu 29325030321SMaruthi Srinivas Bayyavarapu adev->acp.acp_genpd->gpd.name = "ACP_AUDIO"; 29425030321SMaruthi Srinivas Bayyavarapu adev->acp.acp_genpd->gpd.power_off = acp_poweroff; 29525030321SMaruthi Srinivas Bayyavarapu adev->acp.acp_genpd->gpd.power_on = acp_poweron; 29625030321SMaruthi Srinivas Bayyavarapu 29725030321SMaruthi Srinivas Bayyavarapu 29825030321SMaruthi Srinivas Bayyavarapu adev->acp.acp_genpd->cgs_dev = adev->acp.cgs_device; 29925030321SMaruthi Srinivas Bayyavarapu 30025030321SMaruthi Srinivas Bayyavarapu pm_genpd_init(&adev->acp.acp_genpd->gpd, NULL, false); 30125030321SMaruthi Srinivas Bayyavarapu 302a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_cell = kzalloc(sizeof(struct mfd_cell) * ACP_DEVS, 303a8fe58ceSMaruthi Bayyavarapu GFP_KERNEL); 304a8fe58ceSMaruthi Bayyavarapu 305a8fe58ceSMaruthi Bayyavarapu if (adev->acp.acp_cell == NULL) 306a8fe58ceSMaruthi Bayyavarapu return -ENOMEM; 307a8fe58ceSMaruthi Bayyavarapu 308a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_res = kzalloc(sizeof(struct resource) * 4, GFP_KERNEL); 309a8fe58ceSMaruthi Bayyavarapu 310a8fe58ceSMaruthi Bayyavarapu if (adev->acp.acp_res == NULL) { 311a8fe58ceSMaruthi Bayyavarapu kfree(adev->acp.acp_cell); 312a8fe58ceSMaruthi Bayyavarapu return -ENOMEM; 313a8fe58ceSMaruthi Bayyavarapu } 314a8fe58ceSMaruthi Bayyavarapu 315a8fe58ceSMaruthi Bayyavarapu i2s_pdata = kzalloc(sizeof(struct i2s_platform_data) * 2, GFP_KERNEL); 316a8fe58ceSMaruthi Bayyavarapu if (i2s_pdata == NULL) { 317a8fe58ceSMaruthi Bayyavarapu kfree(adev->acp.acp_res); 318a8fe58ceSMaruthi Bayyavarapu kfree(adev->acp.acp_cell); 319a8fe58ceSMaruthi Bayyavarapu return -ENOMEM; 320a8fe58ceSMaruthi Bayyavarapu } 321a8fe58ceSMaruthi Bayyavarapu 322a8fe58ceSMaruthi Bayyavarapu i2s_pdata[0].quirks = DW_I2S_QUIRK_COMP_REG_OFFSET; 323a8fe58ceSMaruthi Bayyavarapu i2s_pdata[0].cap = DWC_I2S_PLAY; 324a8fe58ceSMaruthi Bayyavarapu i2s_pdata[0].snd_rates = SNDRV_PCM_RATE_8000_96000; 325a8fe58ceSMaruthi Bayyavarapu i2s_pdata[0].i2s_reg_comp1 = ACP_I2S_COMP1_PLAY_REG_OFFSET; 326a8fe58ceSMaruthi Bayyavarapu i2s_pdata[0].i2s_reg_comp2 = ACP_I2S_COMP2_PLAY_REG_OFFSET; 327a8fe58ceSMaruthi Bayyavarapu 328a8fe58ceSMaruthi Bayyavarapu i2s_pdata[1].quirks = DW_I2S_QUIRK_COMP_REG_OFFSET | 329a8fe58ceSMaruthi Bayyavarapu DW_I2S_QUIRK_COMP_PARAM1; 330a8fe58ceSMaruthi Bayyavarapu i2s_pdata[1].cap = DWC_I2S_RECORD; 331a8fe58ceSMaruthi Bayyavarapu i2s_pdata[1].snd_rates = SNDRV_PCM_RATE_8000_96000; 332a8fe58ceSMaruthi Bayyavarapu i2s_pdata[1].i2s_reg_comp1 = ACP_I2S_COMP1_CAP_REG_OFFSET; 333a8fe58ceSMaruthi Bayyavarapu i2s_pdata[1].i2s_reg_comp2 = ACP_I2S_COMP2_CAP_REG_OFFSET; 334a8fe58ceSMaruthi Bayyavarapu 335a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_res[0].name = "acp2x_dma"; 336a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_res[0].flags = IORESOURCE_MEM; 337a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_res[0].start = acp_base; 338a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_res[0].end = acp_base + ACP_DMA_REGS_END; 339a8fe58ceSMaruthi Bayyavarapu 340a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_res[1].name = "acp2x_dw_i2s_play"; 341a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_res[1].flags = IORESOURCE_MEM; 342a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_res[1].start = acp_base + ACP_I2S_PLAY_REGS_START; 343a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_res[1].end = acp_base + ACP_I2S_PLAY_REGS_END; 344a8fe58ceSMaruthi Bayyavarapu 345a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_res[2].name = "acp2x_dw_i2s_cap"; 346a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_res[2].flags = IORESOURCE_MEM; 347a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_res[2].start = acp_base + ACP_I2S_CAP_REGS_START; 348a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_res[2].end = acp_base + ACP_I2S_CAP_REGS_END; 349a8fe58ceSMaruthi Bayyavarapu 350a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_res[3].name = "acp2x_dma_irq"; 351a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_res[3].flags = IORESOURCE_IRQ; 352a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_res[3].start = amdgpu_irq_create_mapping(adev, 162); 353a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_res[3].end = adev->acp.acp_res[3].start; 354a8fe58ceSMaruthi Bayyavarapu 355a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_cell[0].name = "acp_audio_dma"; 356a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_cell[0].num_resources = 4; 357a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_cell[0].resources = &adev->acp.acp_res[0]; 358a8fe58ceSMaruthi Bayyavarapu 359a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_cell[1].name = "designware-i2s"; 360a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_cell[1].num_resources = 1; 361a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_cell[1].resources = &adev->acp.acp_res[1]; 362a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_cell[1].platform_data = &i2s_pdata[0]; 363a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_cell[1].pdata_size = sizeof(struct i2s_platform_data); 364a8fe58ceSMaruthi Bayyavarapu 365a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_cell[2].name = "designware-i2s"; 366a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_cell[2].num_resources = 1; 367a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_cell[2].resources = &adev->acp.acp_res[2]; 368a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_cell[2].platform_data = &i2s_pdata[1]; 369a8fe58ceSMaruthi Bayyavarapu adev->acp.acp_cell[2].pdata_size = sizeof(struct i2s_platform_data); 370a8fe58ceSMaruthi Bayyavarapu 371a8fe58ceSMaruthi Bayyavarapu r = mfd_add_hotplug_devices(adev->acp.parent, adev->acp.acp_cell, 372a8fe58ceSMaruthi Bayyavarapu ACP_DEVS); 373a8fe58ceSMaruthi Bayyavarapu if (r) 374a8fe58ceSMaruthi Bayyavarapu return r; 375a8fe58ceSMaruthi Bayyavarapu 37625030321SMaruthi Srinivas Bayyavarapu for (i = 0; i < ACP_DEVS ; i++) { 37725030321SMaruthi Srinivas Bayyavarapu dev = get_mfd_cell_dev(adev->acp.acp_cell[i].name, i); 37825030321SMaruthi Srinivas Bayyavarapu r = pm_genpd_add_device(&adev->acp.acp_genpd->gpd, dev); 37925030321SMaruthi Srinivas Bayyavarapu if (r) { 38025030321SMaruthi Srinivas Bayyavarapu dev_err(dev, "Failed to add dev to genpd\n"); 38125030321SMaruthi Srinivas Bayyavarapu return r; 38225030321SMaruthi Srinivas Bayyavarapu } 38325030321SMaruthi Srinivas Bayyavarapu } 38425030321SMaruthi Srinivas Bayyavarapu 385a8fe58ceSMaruthi Bayyavarapu return 0; 386a8fe58ceSMaruthi Bayyavarapu } 387a8fe58ceSMaruthi Bayyavarapu 388a8fe58ceSMaruthi Bayyavarapu /** 389a8fe58ceSMaruthi Bayyavarapu * acp_hw_fini - stop the hardware block 390a8fe58ceSMaruthi Bayyavarapu * 391a8fe58ceSMaruthi Bayyavarapu * @adev: amdgpu_device pointer 392a8fe58ceSMaruthi Bayyavarapu * 393a8fe58ceSMaruthi Bayyavarapu */ 394a8fe58ceSMaruthi Bayyavarapu static int acp_hw_fini(void *handle) 395a8fe58ceSMaruthi Bayyavarapu { 39625030321SMaruthi Srinivas Bayyavarapu int i, ret; 39725030321SMaruthi Srinivas Bayyavarapu struct device *dev; 39825030321SMaruthi Srinivas Bayyavarapu 399a8fe58ceSMaruthi Bayyavarapu struct amdgpu_device *adev = (struct amdgpu_device *)handle; 400a8fe58ceSMaruthi Bayyavarapu 40125030321SMaruthi Srinivas Bayyavarapu for (i = 0; i < ACP_DEVS ; i++) { 40225030321SMaruthi Srinivas Bayyavarapu dev = get_mfd_cell_dev(adev->acp.acp_cell[i].name, i); 40325030321SMaruthi Srinivas Bayyavarapu ret = pm_genpd_remove_device(&adev->acp.acp_genpd->gpd, dev); 40425030321SMaruthi Srinivas Bayyavarapu /* If removal fails, dont giveup and try rest */ 40525030321SMaruthi Srinivas Bayyavarapu if (ret) 40625030321SMaruthi Srinivas Bayyavarapu dev_err(dev, "remove dev from genpd failed\n"); 40725030321SMaruthi Srinivas Bayyavarapu } 40825030321SMaruthi Srinivas Bayyavarapu 409a8fe58ceSMaruthi Bayyavarapu mfd_remove_devices(adev->acp.parent); 410a8fe58ceSMaruthi Bayyavarapu kfree(adev->acp.acp_res); 41125030321SMaruthi Srinivas Bayyavarapu kfree(adev->acp.acp_genpd); 412a8fe58ceSMaruthi Bayyavarapu kfree(adev->acp.acp_cell); 413a8fe58ceSMaruthi Bayyavarapu 414a8fe58ceSMaruthi Bayyavarapu return 0; 415a8fe58ceSMaruthi Bayyavarapu } 416a8fe58ceSMaruthi Bayyavarapu 417a8fe58ceSMaruthi Bayyavarapu static int acp_suspend(void *handle) 418a8fe58ceSMaruthi Bayyavarapu { 419a8fe58ceSMaruthi Bayyavarapu return 0; 420a8fe58ceSMaruthi Bayyavarapu } 421a8fe58ceSMaruthi Bayyavarapu 422a8fe58ceSMaruthi Bayyavarapu static int acp_resume(void *handle) 423a8fe58ceSMaruthi Bayyavarapu { 42425030321SMaruthi Srinivas Bayyavarapu int i, ret; 42525030321SMaruthi Srinivas Bayyavarapu struct acp_pm_domain *apd; 42625030321SMaruthi Srinivas Bayyavarapu struct amdgpu_device *adev = (struct amdgpu_device *)handle; 42725030321SMaruthi Srinivas Bayyavarapu 4288f994555SAlex Deucher /* return early if no ACP */ 4298f994555SAlex Deucher if (!adev->acp.acp_genpd) 4308f994555SAlex Deucher return 0; 4318f994555SAlex Deucher 43225030321SMaruthi Srinivas Bayyavarapu /* SMU block will power on ACP irrespective of ACP runtime status. 43325030321SMaruthi Srinivas Bayyavarapu * Power off explicitly based on genpd ACP runtime status so that ACP 43425030321SMaruthi Srinivas Bayyavarapu * hw and ACP-genpd status are in sync. 43525030321SMaruthi Srinivas Bayyavarapu * 'suspend_power_off' represents "Power status before system suspend" 43625030321SMaruthi Srinivas Bayyavarapu */ 43725030321SMaruthi Srinivas Bayyavarapu if (adev->acp.acp_genpd->gpd.suspend_power_off == true) { 43825030321SMaruthi Srinivas Bayyavarapu apd = container_of(&adev->acp.acp_genpd->gpd, 43925030321SMaruthi Srinivas Bayyavarapu struct acp_pm_domain, gpd); 44025030321SMaruthi Srinivas Bayyavarapu 44125030321SMaruthi Srinivas Bayyavarapu for (i = 4; i >= 0 ; i--) { 44225030321SMaruthi Srinivas Bayyavarapu ret = acp_suspend_tile(apd->cgs_dev, ACP_TILE_P1 + i); 44325030321SMaruthi Srinivas Bayyavarapu if (ret) 44425030321SMaruthi Srinivas Bayyavarapu pr_err("ACP tile %d tile suspend failed\n", i); 44525030321SMaruthi Srinivas Bayyavarapu } 44625030321SMaruthi Srinivas Bayyavarapu } 447a8fe58ceSMaruthi Bayyavarapu return 0; 448a8fe58ceSMaruthi Bayyavarapu } 449a8fe58ceSMaruthi Bayyavarapu 450a8fe58ceSMaruthi Bayyavarapu static int acp_early_init(void *handle) 451a8fe58ceSMaruthi Bayyavarapu { 452a8fe58ceSMaruthi Bayyavarapu return 0; 453a8fe58ceSMaruthi Bayyavarapu } 454a8fe58ceSMaruthi Bayyavarapu 455a8fe58ceSMaruthi Bayyavarapu static bool acp_is_idle(void *handle) 456a8fe58ceSMaruthi Bayyavarapu { 457a8fe58ceSMaruthi Bayyavarapu return true; 458a8fe58ceSMaruthi Bayyavarapu } 459a8fe58ceSMaruthi Bayyavarapu 460a8fe58ceSMaruthi Bayyavarapu static int acp_wait_for_idle(void *handle) 461a8fe58ceSMaruthi Bayyavarapu { 462a8fe58ceSMaruthi Bayyavarapu return 0; 463a8fe58ceSMaruthi Bayyavarapu } 464a8fe58ceSMaruthi Bayyavarapu 465a8fe58ceSMaruthi Bayyavarapu static int acp_soft_reset(void *handle) 466a8fe58ceSMaruthi Bayyavarapu { 467a8fe58ceSMaruthi Bayyavarapu return 0; 468a8fe58ceSMaruthi Bayyavarapu } 469a8fe58ceSMaruthi Bayyavarapu 470a8fe58ceSMaruthi Bayyavarapu static int acp_set_clockgating_state(void *handle, 471a8fe58ceSMaruthi Bayyavarapu enum amd_clockgating_state state) 472a8fe58ceSMaruthi Bayyavarapu { 473a8fe58ceSMaruthi Bayyavarapu return 0; 474a8fe58ceSMaruthi Bayyavarapu } 475a8fe58ceSMaruthi Bayyavarapu 476a8fe58ceSMaruthi Bayyavarapu static int acp_set_powergating_state(void *handle, 477a8fe58ceSMaruthi Bayyavarapu enum amd_powergating_state state) 478a8fe58ceSMaruthi Bayyavarapu { 479a8fe58ceSMaruthi Bayyavarapu return 0; 480a8fe58ceSMaruthi Bayyavarapu } 481a8fe58ceSMaruthi Bayyavarapu 482a8fe58ceSMaruthi Bayyavarapu const struct amd_ip_funcs acp_ip_funcs = { 48388a907d6STom St Denis .name = "acp_ip", 484a8fe58ceSMaruthi Bayyavarapu .early_init = acp_early_init, 485a8fe58ceSMaruthi Bayyavarapu .late_init = NULL, 486a8fe58ceSMaruthi Bayyavarapu .sw_init = acp_sw_init, 487a8fe58ceSMaruthi Bayyavarapu .sw_fini = acp_sw_fini, 488a8fe58ceSMaruthi Bayyavarapu .hw_init = acp_hw_init, 489a8fe58ceSMaruthi Bayyavarapu .hw_fini = acp_hw_fini, 490a8fe58ceSMaruthi Bayyavarapu .suspend = acp_suspend, 491a8fe58ceSMaruthi Bayyavarapu .resume = acp_resume, 492a8fe58ceSMaruthi Bayyavarapu .is_idle = acp_is_idle, 493a8fe58ceSMaruthi Bayyavarapu .wait_for_idle = acp_wait_for_idle, 494a8fe58ceSMaruthi Bayyavarapu .soft_reset = acp_soft_reset, 495a8fe58ceSMaruthi Bayyavarapu .set_clockgating_state = acp_set_clockgating_state, 496a8fe58ceSMaruthi Bayyavarapu .set_powergating_state = acp_set_powergating_state, 497a8fe58ceSMaruthi Bayyavarapu }; 498