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soundwire: amd: Add support for AMD Manager driver

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AMD ACP(v6.x) IP block has two SoundWire manager devices.
Add support for
  - Manager driver probe & remove sequence
  - Helper functions to enable/disable interrupts,
    Initialize sdw manager, enable sdw pads
  - Manager driver sdw_master_ops & port_ops callbacks

Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/lkml/20230310162554.699766-3-Vijendar.Mukunda@amd.com
Link: https://lore.kernel.org/r/20230321050901.115439-3-Vijendar.Mukunda@amd.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Vijendar Mukunda
2023-03-21 10:38:55 +05:30
committed by Vinod Koul
parent f346fdf977
commit d8f48fbdfd
3 changed files with 972 additions and 0 deletions
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670
drivers/soundwire/amd_manager.c Normal file
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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (C) 2023 Advanced Micro Devices, Inc. All rights reserved.
*/
#ifndef __AMD_MANAGER_H
#define __AMD_MANAGER_H
#include <linux/soundwire/sdw_amd.h>
#define SDW_MANAGER_REG_OFFSET 0xc00
#define AMD_SDW_DEFAULT_ROWS 50
#define AMD_SDW_DEFAULT_COLUMNS 10
#define ACP_PAD_PULLDOWN_CTRL 0x0001448
#define ACP_SW_PAD_KEEPER_EN 0x0001454
#define ACP_SW0_WAKE_EN 0x0001458
#define ACP_EXTERNAL_INTR_CNTL0 0x0001a04
#define ACP_EXTERNAL_INTR_STAT0 0x0001a0c
#define ACP_EXTERNAL_INTR_CNTL(i) (ACP_EXTERNAL_INTR_CNTL0 + ((i) * 4))
#define ACP_EXTERNAL_INTR_STAT(i) (ACP_EXTERNAL_INTR_STAT0 + ((i) * 4))
#define ACP_SW_WAKE_EN(i) (ACP_SW0_WAKE_EN + ((i) * 8))
#define ACP_SW_EN 0x0003000
#define ACP_SW_EN_STATUS 0x0003004
#define ACP_SW_FRAMESIZE 0x0003008
#define ACP_SW_SSP_COUNTER 0x000300c
#define ACP_SW_AUDIO0_TX_EN 0x0003010
#define ACP_SW_AUDIO0_TX_EN_STATUS 0x0003014
#define ACP_SW_AUDIO0_TX_FRAME_FORMAT 0x0003018
#define ACP_SW_AUDIO0_TX_SAMPLEINTERVAL 0x000301c
#define ACP_SW_AUDIO0_TX_HCTRL_DP0 0x0003020
#define ACP_SW_AUDIO0_TX_HCTRL_DP1 0x0003024
#define ACP_SW_AUDIO0_TX_HCTRL_DP2 0x0003028
#define ACP_SW_AUDIO0_TX_HCTRL_DP3 0x000302c
#define ACP_SW_AUDIO0_TX_OFFSET_DP0 0x0003030
#define ACP_SW_AUDIO0_TX_OFFSET_DP1 0x0003034
#define ACP_SW_AUDIO0_TX_OFFSET_DP2 0x0003038
#define ACP_SW_AUDIO0_TX_OFFSET_DP3 0x000303c
#define ACP_SW_AUDIO0_TX_CHANNEL_ENABLE_DP0 0x0003040
#define ACP_SW_AUDIO0_TX_CHANNEL_ENABLE_DP1 0x0003044
#define ACP_SW_AUDIO0_TX_CHANNEL_ENABLE_DP2 0x0003048
#define ACP_SW_AUDIO0_TX_CHANNEL_ENABLE_DP3 0x000304c
#define ACP_SW_AUDIO1_TX_EN 0x0003050
#define ACP_SW_AUDIO1_TX_EN_STATUS 0x0003054
#define ACP_SW_AUDIO1_TX_FRAME_FORMAT 0x0003058
#define ACP_SW_AUDIO1_TX_SAMPLEINTERVAL 0x000305c
#define ACP_SW_AUDIO1_TX_HCTRL 0x0003060
#define ACP_SW_AUDIO1_TX_OFFSET 0x0003064
#define ACP_SW_AUDIO1_TX_CHANNEL_ENABLE_DP0 0x0003068
#define ACP_SW_AUDIO2_TX_EN 0x000306c
#define ACP_SW_AUDIO2_TX_EN_STATUS 0x0003070
#define ACP_SW_AUDIO2_TX_FRAME_FORMAT 0x0003074
#define ACP_SW_AUDIO2_TX_SAMPLEINTERVAL 0x0003078
#define ACP_SW_AUDIO2_TX_HCTRL 0x000307c
#define ACP_SW_AUDIO2_TX_OFFSET 0x0003080
#define ACP_SW_AUDIO2_TX_CHANNEL_ENABLE_DP0 0x0003084
#define ACP_SW_AUDIO0_RX_EN 0x0003088
#define ACP_SW_AUDIO0_RX_EN_STATUS 0x000308c
#define ACP_SW_AUDIO0_RX_FRAME_FORMAT 0x0003090
#define ACP_SW_AUDIO0_RX_SAMPLEINTERVAL 0x0003094
#define ACP_SW_AUDIO0_RX_HCTRL_DP0 0x0003098
#define ACP_SW_AUDIO0_RX_HCTRL_DP1 0x000309c
#define ACP_SW_AUDIO0_RX_HCTRL_DP2 0x0003100
#define ACP_SW_AUDIO0_RX_HCTRL_DP3 0x0003104
#define ACP_SW_AUDIO0_RX_OFFSET_DP0 0x0003108
#define ACP_SW_AUDIO0_RX_OFFSET_DP1 0x000310c
#define ACP_SW_AUDIO0_RX_OFFSET_DP2 0x0003110
#define ACP_SW_AUDIO0_RX_OFFSET_DP3 0x0003114
#define ACP_SW_AUDIO0_RX_CHANNEL_ENABLE_DP0 0x0003118
#define ACP_SW_AUDIO0_RX_CHANNEL_ENABLE_DP1 0x000311c
#define ACP_SW_AUDIO0_RX_CHANNEL_ENABLE_DP2 0x0003120
#define ACP_SW_AUDIO0_RX_CHANNEL_ENABLE_DP3 0x0003124
#define ACP_SW_AUDIO1_RX_EN 0x0003128
#define ACP_SW_AUDIO1_RX_EN_STATUS 0x000312c
#define ACP_SW_AUDIO1_RX_FRAME_FORMAT 0x0003130
#define ACP_SW_AUDIO1_RX_SAMPLEINTERVAL 0x0003134
#define ACP_SW_AUDIO1_RX_HCTRL 0x0003138
#define ACP_SW_AUDIO1_RX_OFFSET 0x000313c
#define ACP_SW_AUDIO1_RX_CHANNEL_ENABLE_DP0 0x0003140
#define ACP_SW_AUDIO2_RX_EN 0x0003144
#define ACP_SW_AUDIO2_RX_EN_STATUS 0x0003148
#define ACP_SW_AUDIO2_RX_FRAME_FORMAT 0x000314c
#define ACP_SW_AUDIO2_RX_SAMPLEINTERVAL 0x0003150
#define ACP_SW_AUDIO2_RX_HCTRL 0x0003154
#define ACP_SW_AUDIO2_RX_OFFSET 0x0003158
#define ACP_SW_AUDIO2_RX_CHANNEL_ENABLE_DP0 0x000315c
#define ACP_SW_BPT_PORT_EN 0x0003160
#define ACP_SW_BPT_PORT_EN_STATUS 0x0003164
#define ACP_SW_BPT_PORT_FRAME_FORMAT 0x0003168
#define ACP_SW_BPT_PORT_SAMPLEINTERVAL 0x000316c
#define ACP_SW_BPT_PORT_HCTRL 0x0003170
#define ACP_SW_BPT_PORT_OFFSET 0x0003174
#define ACP_SW_BPT_PORT_CHANNEL_ENABLE 0x0003178
#define ACP_SW_BPT_PORT_FIRST_BYTE_ADDR 0x000317c
#define ACP_SW_CLK_RESUME_CTRL 0x0003180
#define ACP_SW_CLK_RESUME_DELAY_CNTR 0x0003184
#define ACP_SW_BUS_RESET_CTRL 0x0003188
#define ACP_SW_PRBS_ERR_STATUS 0x000318c
#define ACP_SW_IMM_CMD_UPPER_WORD 0x0003230
#define ACP_SW_IMM_CMD_LOWER_QWORD 0x0003234
#define ACP_SW_IMM_RESP_UPPER_WORD 0x0003238
#define ACP_SW_IMM_RESP_LOWER_QWORD 0x000323c
#define ACP_SW_IMM_CMD_STS 0x0003240
#define ACP_SW_BRA_BASE_ADDRESS 0x0003244
#define ACP_SW_BRA_TRANSFER_SIZE 0x0003248
#define ACP_SW_BRA_DMA_BUSY 0x000324c
#define ACP_SW_BRA_RESP 0x0003250
#define ACP_SW_BRA_RESP_FRAME_ADDR 0x0003254
#define ACP_SW_BRA_CURRENT_TRANSFER_SIZE 0x0003258
#define ACP_SW_STATE_CHANGE_STATUS_0TO7 0x000325c
#define ACP_SW_STATE_CHANGE_STATUS_8TO11 0x0003260
#define ACP_SW_STATE_CHANGE_STATUS_MASK_0TO7 0x0003264
#define ACP_SW_STATE_CHANGE_STATUS_MASK_8TO11 0x0003268
#define ACP_SW_CLK_FREQUENCY_CTRL 0x000326c
#define ACP_SW_ERROR_INTR_MASK 0x0003270
#define ACP_SW_PHY_TEST_MODE_DATA_OFF 0x0003274
#define ACP_DELAY_US 10
#define AMD_SDW_TIMEOUT 1000
#define AMD_SDW_DEFAULT_CLK_FREQ 12000000
#define AMD_SDW_MCP_RESP_ACK BIT(0)
#define AMD_SDW_MCP_RESP_NACK BIT(1)
#define AMD_SDW_MCP_RESP_RDATA GENMASK(14, 7)
#define AMD_SDW_MCP_CMD_SSP_TAG BIT(31)
#define AMD_SDW_MCP_CMD_COMMAND GENMASK(14, 12)
#define AMD_SDW_MCP_CMD_DEV_ADDR GENMASK(11, 8)
#define AMD_SDW_MCP_CMD_REG_ADDR_HIGH GENMASK(7, 0)
#define AMD_SDW_MCP_CMD_REG_ADDR_LOW GENMASK(31, 24)
#define AMD_SDW_MCP_CMD_REG_DATA GENMASK(14, 7)
#define AMD_SDW_MCP_SLAVE_STAT_0_3 GENMASK(14, 7)
#define AMD_SDW_MCP_SLAVE_STAT_4_11 GENMASK_ULL(39, 24)
#define AMD_SDW_MCP_SLAVE_STATUS_MASK GENMASK(1, 0)
#define AMD_SDW_MCP_SLAVE_STATUS_BITS GENMASK(3, 2)
#define AMD_SDW_MCP_SLAVE_STATUS_8TO_11 GENMASK_ULL(15, 0)
#define AMD_SDW_MCP_SLAVE_STATUS_VALID_MASK(x) BIT(((x) * 4))
#define AMD_SDW_MCP_SLAVE_STAT_SHIFT_MASK(x) (((x) * 4) + 1)
#define AMD_SDW_MASTER_SUSPEND_DELAY_MS 2000
#define AMD_SDW_QUIRK_MASK_BUS_ENABLE BIT(0)
#define AMD_SDW_IMM_RES_VALID 1
#define AMD_SDW_IMM_CMD_BUSY 2
#define AMD_SDW_ENABLE 1
#define AMD_SDW_DISABLE 0
#define AMD_SDW_BUS_RESET_CLEAR_REQ 0
#define AMD_SDW_BUS_RESET_REQ 1
#define AMD_SDW_BUS_RESET_DONE 2
#define AMD_SDW_BUS_BASE_FREQ 24000000
#define AMD_SDW0_EXT_INTR_MASK 0x200000
#define AMD_SDW1_EXT_INTR_MASK 4
#define AMD_SDW_IRQ_MASK_0TO7 0x77777777
#define AMD_SDW_IRQ_MASK_8TO11 0x000d7777
#define AMD_SDW_IRQ_ERROR_MASK 0xff
#define AMD_SDW_MAX_FREQ_NUM 1
#define AMD_SDW0_MAX_TX_PORTS 3
#define AMD_SDW0_MAX_RX_PORTS 3
#define AMD_SDW1_MAX_TX_PORTS 1
#define AMD_SDW1_MAX_RX_PORTS 1
#define AMD_SDW0_MAX_DAI 6
#define AMD_SDW1_MAX_DAI 2
#define AMD_SDW_SLAVE_0_ATTACHED 5
#define AMD_SDW_SSP_COUNTER_VAL 3
#define AMD_DPN_FRAME_FMT_PFM GENMASK(1, 0)
#define AMD_DPN_FRAME_FMT_PDM GENMASK(3, 2)
#define AMD_DPN_FRAME_FMT_BLK_PKG_MODE BIT(4)
#define AMD_DPN_FRAME_FMT_BLK_GRP_CTRL GENMASK(6, 5)
#define AMD_DPN_FRAME_FMT_WORD_LEN GENMASK(12, 7)
#define AMD_DPN_FRAME_FMT_PCM_OR_PDM BIT(13)
#define AMD_DPN_HCTRL_HSTOP GENMASK(3, 0)
#define AMD_DPN_HCTRL_HSTART GENMASK(7, 4)
#define AMD_DPN_OFFSET_CTRL_1 GENMASK(7, 0)
#define AMD_DPN_OFFSET_CTRL_2 GENMASK(15, 8)
#define AMD_DPN_CH_EN_LCTRL GENMASK(2, 0)
#define AMD_DPN_CH_EN_CHMASK GENMASK(10, 3)
#define AMD_SDW_STAT_MAX_RETRY_COUNT 100
#define AMD_SDW0_PAD_PULLDOWN_CTRL_ENABLE_MASK 0x7f9f
#define AMD_SDW1_PAD_PULLDOWN_CTRL_ENABLE_MASK 0x7ffa
#define AMD_SDW0_PAD_PULLDOWN_CTRL_DISABLE_MASK 0x60
#define AMD_SDW1_PAD_PULLDOWN_CTRL_DISABLE_MASK 5
#define AMD_SDW0_PAD_KEEPER_EN_MASK 1
#define AMD_SDW1_PAD_KEEPER_EN_MASK 0x10
#define AMD_SDW0_PAD_KEEPER_DISABLE_MASK 0x1e
#define AMD_SDW1_PAD_KEEPER_DISABLE_MASK 0xf
static u32 amd_sdw_freq_tbl[AMD_SDW_MAX_FREQ_NUM] = {
AMD_SDW_DEFAULT_CLK_FREQ,
};
struct sdw_manager_dp_reg {
u32 frame_fmt_reg;
u32 sample_int_reg;
u32 hctrl_dp0_reg;
u32 offset_reg;
u32 lane_ctrl_ch_en_reg;
};
static struct sdw_manager_dp_reg sdw0_manager_dp_reg[AMD_SDW0_MAX_DAI] = {
{ACP_SW_AUDIO0_TX_FRAME_FORMAT, ACP_SW_AUDIO0_TX_SAMPLEINTERVAL, ACP_SW_AUDIO0_TX_HCTRL_DP0,
ACP_SW_AUDIO0_TX_OFFSET_DP0, ACP_SW_AUDIO0_TX_CHANNEL_ENABLE_DP0},
{ACP_SW_AUDIO1_TX_FRAME_FORMAT, ACP_SW_AUDIO1_TX_SAMPLEINTERVAL, ACP_SW_AUDIO1_TX_HCTRL,
ACP_SW_AUDIO1_TX_OFFSET, ACP_SW_AUDIO1_TX_CHANNEL_ENABLE_DP0},
{ACP_SW_AUDIO2_TX_FRAME_FORMAT, ACP_SW_AUDIO2_TX_SAMPLEINTERVAL, ACP_SW_AUDIO2_TX_HCTRL,
ACP_SW_AUDIO2_TX_OFFSET, ACP_SW_AUDIO2_TX_CHANNEL_ENABLE_DP0},
{ACP_SW_AUDIO0_RX_FRAME_FORMAT, ACP_SW_AUDIO0_RX_SAMPLEINTERVAL, ACP_SW_AUDIO0_RX_HCTRL_DP0,
ACP_SW_AUDIO0_RX_OFFSET_DP0, ACP_SW_AUDIO0_RX_CHANNEL_ENABLE_DP0},
{ACP_SW_AUDIO1_RX_FRAME_FORMAT, ACP_SW_AUDIO1_RX_SAMPLEINTERVAL, ACP_SW_AUDIO1_RX_HCTRL,
ACP_SW_AUDIO1_RX_OFFSET, ACP_SW_AUDIO1_RX_CHANNEL_ENABLE_DP0},
{ACP_SW_AUDIO2_RX_FRAME_FORMAT, ACP_SW_AUDIO2_RX_SAMPLEINTERVAL, ACP_SW_AUDIO2_RX_HCTRL,
ACP_SW_AUDIO2_RX_OFFSET, ACP_SW_AUDIO2_RX_CHANNEL_ENABLE_DP0},
};
static struct sdw_manager_dp_reg sdw1_manager_dp_reg[AMD_SDW1_MAX_DAI] = {
{ACP_SW_AUDIO1_TX_FRAME_FORMAT, ACP_SW_AUDIO1_TX_SAMPLEINTERVAL, ACP_SW_AUDIO1_TX_HCTRL,
ACP_SW_AUDIO1_TX_OFFSET, ACP_SW_AUDIO1_TX_CHANNEL_ENABLE_DP0},
{ACP_SW_AUDIO1_RX_FRAME_FORMAT, ACP_SW_AUDIO1_RX_SAMPLEINTERVAL, ACP_SW_AUDIO1_RX_HCTRL,
ACP_SW_AUDIO1_RX_OFFSET, ACP_SW_AUDIO1_RX_CHANNEL_ENABLE_DP0}
};
static struct sdw_manager_reg_mask sdw_manager_reg_mask_array[2] = {
{
AMD_SDW0_PAD_KEEPER_EN_MASK,
AMD_SDW0_PAD_PULLDOWN_CTRL_ENABLE_MASK,
AMD_SDW0_EXT_INTR_MASK
},
{
AMD_SDW1_PAD_KEEPER_EN_MASK,
AMD_SDW1_PAD_PULLDOWN_CTRL_ENABLE_MASK,
AMD_SDW1_EXT_INTR_MASK
}
};
#endif

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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (C) 2023 Advanced Micro Devices, Inc. All rights reserved.
*/
#ifndef __SDW_AMD_H
#define __SDW_AMD_H
#include <linux/soundwire/sdw.h>
#define ACP_SDW0 0
#define ACP_SDW1 1
struct acp_sdw_pdata {
u16 instance;
/* mutex to protect acp common register access */
struct mutex *acp_sdw_lock;
};
struct sdw_manager_reg_mask {
u32 sw_pad_enable_mask;
u32 sw_pad_pulldown_mask;
u32 acp_sdw_intr_mask;
};
/**
* struct amd_sdw_manager - amd manager driver context
* @bus: bus handle
* @dev: linux device
* @mmio: SoundWire registers mmio base
* @acp_mmio: acp registers mmio base
* @reg_mask: register mask structure per manager instance
* @probe_work: SoundWire manager probe workqueue
* @acp_sdw_lock: mutex to protect acp share register access
* @num_din_ports: number of input ports
* @num_dout_ports: number of output ports
* @cols_index: Column index in frame shape
* @rows_index: Rows index in frame shape
* @instance: SoundWire manager instance
* @quirks: SoundWire manager quirks
* @wake_en_mask: wake enable mask per SoundWire manager
* @power_mode_mask: flag interprets amd SoundWire manager power mode
*/
struct amd_sdw_manager {
struct sdw_bus bus;
struct device *dev;
void __iomem *mmio;
void __iomem *acp_mmio;
struct sdw_manager_reg_mask *reg_mask;
struct work_struct probe_work;
/* mutex to protect acp common register access */
struct mutex *acp_sdw_lock;
int num_din_ports;
int num_dout_ports;
int cols_index;
int rows_index;
u32 instance;
u32 quirks;
u32 wake_en_mask;
u32 power_mode_mask;
};
#endif