diff options
| author | Vijendar Mukunda <Vijendar.Mukunda@amd.com> | 2023-03-21 10:38:55 +0530 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2023-04-12 15:30:35 +0530 |
| commit | d8f48fbdfd9af268e92b33462472559d2840228c (patch) | |
| tree | 4d4a7996a091a92d5501799cbf3423c41c51adb6 /include/linux/soundwire | |
| parent | f346fdf977209b1f2a6fd701a853372d398cce91 (diff) | |
soundwire: amd: Add support for AMD Manager driver
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>
Diffstat (limited to 'include/linux/soundwire')
| -rw-r--r-- | include/linux/soundwire/sdw_amd.h | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/include/linux/soundwire/sdw_amd.h b/include/linux/soundwire/sdw_amd.h new file mode 100644 index 000000000000..c14a291a40e8 --- /dev/null +++ b/include/linux/soundwire/sdw_amd.h @@ -0,0 +1,67 @@ +/* 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 |