Unverified Commit 33d120a4 authored by Syed Saba Kareem's avatar Syed Saba Kareem Committed by Mark Brown
Browse files

ASoC: amd: acp: Add acp6.3 pci legacy driver support 



Add pci legacy driver support and create platform driver for
acp6.3 based platforms.

Signed-off-by: default avatarSyed Saba Kareem <Syed.SabaKareem@amd.com>
Link: https://lore.kernel.org/r/20231021145110.478744-1-Syed.SabaKareem@amd.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent f5c7bc7a

sound/soc/amd/acp/acp-legacy-common.c

+4 −0
Original line number Diff line number Diff line
@@ -260,6 +260,10 @@ static int acp_power_on(struct acp_chip_info *chip) 
		acp_pgfsm_stat_reg = ACP6X_PGFSM_STATUS;

		acp_pgfsm_ctrl_reg = ACP6X_PGFSM_CONTROL;

		break;

	case ACP63_DEV:

		acp_pgfsm_stat_reg = ACP63_PGFSM_STATUS;

		acp_pgfsm_ctrl_reg = ACP63_PGFSM_CONTROL;

		break;

	default:

		return -EINVAL;

	}

sound/soc/amd/acp/acp-pci.c

+4 −0
Original line number Diff line number Diff line
@@ -87,6 +87,10 @@ static int acp_pci_probe(struct pci_dev *pci, const struct pci_device_id *pci_id 
		chip->name = "acp_asoc_rembrandt";

		chip->acp_rev = ACP6X_DEV;

		break;

	case 0x63:

		chip->name = "acp_asoc_acp63";

		chip->acp_rev = ACP63_DEV;

		break;

	default:

		dev_err(dev, "Unsupported device revision:0x%x\n", pci->revision);

		ret = -EINVAL;

sound/soc/amd/acp/acp63.c

0 → 100644
+314 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)

//

// This file is provided under a dual BSD/GPLv2 license. When using or

// redistributing this file, you may do so under either license.

//

// Copyright(c) 2023 Advanced Micro Devices, Inc.

//

// Authors: Syed Saba kareem <syed.sabakareem@amd.com>

/*

 * Hardware interface for ACP6.3 block

 */



#include <linux/platform_device.h>

#include <linux/module.h>

#include <linux/err.h>

#include <linux/io.h>

#include <sound/pcm_params.h>

#include <sound/soc.h>

#include <sound/soc-dai.h>

#include <linux/dma-mapping.h>

#include <linux/pm_runtime.h>

#include <linux/pci.h>

#include "amd.h"



#define DRV_NAME "acp_asoc_acp63"



#define CLK_PLL_PWR_REQ_N0		0X0006C2C0

#define CLK_SPLL_FIELD_2_N0		0X0006C114

#define CLK_PLL_REQ_N0			0X0006C0DC

#define CLK_DFSBYPASS_CONTR		0X0006C2C8

#define CLK_DFS_CNTL_N0			0X0006C1A4



#define PLL_AUTO_STOP_REQ		BIT(4)

#define PLL_AUTO_START_REQ		BIT(0)

#define PLL_FRANCE_EN			BIT(4)

#define EXIT_DPF_BYPASS_0		BIT(16)

#define EXIT_DPF_BYPASS_1		BIT(17)

#define CLK0_DIVIDER			0X30



union clk_pll_req_no {

	struct {

		u32 fb_mult_int : 9;

		u32 reserved : 3;

		u32 pll_spine_div : 4;

		u32 gb_mult_frac : 16;

	} bitfields, bits;

	u32 clk_pll_req_no_reg;

};



static struct acp_resource rsrc = {

	.offset = 0,

	.no_of_ctrls = 2,

	.irqp_used = 1,

	.soc_mclk = true,

	.irq_reg_offset = 0x1a00,

	.i2s_pin_cfg_offset = 0x1440,

	.i2s_mode = 0x0a,

	.scratch_reg_offset = 0x12800,

	.sram_pte_offset = 0x03802800,

};



static struct snd_soc_acpi_mach snd_soc_acpi_amd_acp63_acp_machines[] = {

	{

		.id = "AMDI0052",

		.drv_name = "acp63-acp",

	},

	{},

};



static struct snd_soc_dai_driver acp63_dai[] = {

{

	.name = "acp-i2s-sp",

	.id = I2S_SP_INSTANCE,

	.playback = {

		.stream_name = "I2S SP Playback",

		.rates = SNDRV_PCM_RATE_8000_96000,

		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |

			   SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE,

		.channels_min = 2,

		.channels_max = 8,

		.rate_min = 8000,

		.rate_max = 96000,

	},

	.capture = {

		.stream_name = "I2S SP Capture",

		.rates = SNDRV_PCM_RATE_8000_48000,

		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |

			   SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE,

		.channels_min = 2,

		.channels_max = 2,

		.rate_min = 8000,

		.rate_max = 48000,

	},

	.ops = &asoc_acp_cpu_dai_ops,

},

{

	.name = "acp-i2s-bt",

	.id = I2S_BT_INSTANCE,

	.playback = {

		.stream_name = "I2S BT Playback",

		.rates = SNDRV_PCM_RATE_8000_96000,

		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |

			   SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE,

		.channels_min = 2,

		.channels_max = 8,

		.rate_min = 8000,

		.rate_max = 96000,

	},

	.capture = {

		.stream_name = "I2S BT Capture",

		.rates = SNDRV_PCM_RATE_8000_48000,

		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |

			   SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE,

		.channels_min = 2,

		.channels_max = 2,

		.rate_min = 8000,

		.rate_max = 48000,

	},

	.ops = &asoc_acp_cpu_dai_ops,

},

{

	.name = "acp-i2s-hs",

	.id = I2S_HS_INSTANCE,

	.playback = {

		.stream_name = "I2S HS Playback",

		.rates = SNDRV_PCM_RATE_8000_96000,

		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |

			   SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE,

		.channels_min = 2,

		.channels_max = 8,

		.rate_min = 8000,

		.rate_max = 96000,

	},

	.capture = {

		.stream_name = "I2S HS Capture",

		.rates = SNDRV_PCM_RATE_8000_48000,

		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |

			   SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE,

		.channels_min = 2,

		.channels_max = 8,

		.rate_min = 8000,

		.rate_max = 48000,

	},

	.ops = &asoc_acp_cpu_dai_ops,

},

{

	.name = "acp-pdm-dmic",

	.id = DMIC_INSTANCE,

	.capture = {

		.rates = SNDRV_PCM_RATE_8000_48000,

		.formats = SNDRV_PCM_FMTBIT_S32_LE,

		.channels_min = 2,

		.channels_max = 2,

		.rate_min = 8000,

		.rate_max = 48000,

	},

	.ops = &acp_dmic_dai_ops,

},

};



static int acp63_i2s_master_clock_generate(struct acp_dev_data *adata)

{

	u32 data;

	union clk_pll_req_no clk_pll;

	struct pci_dev *smn_dev;



	smn_dev = pci_get_device(PCI_VENDOR_ID_AMD, 0x14E8, NULL);

	if (!smn_dev)

		return -ENODEV;



	/* Clk5 pll register values to get mclk as 196.6MHz*/

	clk_pll.bits.fb_mult_int = 0x31;

	clk_pll.bits.pll_spine_div = 0;

	clk_pll.bits.gb_mult_frac = 0x26E9;



	data = smn_read(smn_dev, CLK_PLL_PWR_REQ_N0);

	smn_write(smn_dev, CLK_PLL_PWR_REQ_N0, data | PLL_AUTO_STOP_REQ);



	data = smn_read(smn_dev, CLK_SPLL_FIELD_2_N0);

	if (data & PLL_FRANCE_EN)

		smn_write(smn_dev, CLK_SPLL_FIELD_2_N0, data | PLL_FRANCE_EN);



	smn_write(smn_dev, CLK_PLL_REQ_N0, clk_pll.clk_pll_req_no_reg);



	data = smn_read(smn_dev, CLK_PLL_PWR_REQ_N0);

	smn_write(smn_dev, CLK_PLL_PWR_REQ_N0, data | PLL_AUTO_START_REQ);



	data = smn_read(smn_dev, CLK_DFSBYPASS_CONTR);

	smn_write(smn_dev, CLK_DFSBYPASS_CONTR, data | EXIT_DPF_BYPASS_0);

	smn_write(smn_dev, CLK_DFSBYPASS_CONTR, data | EXIT_DPF_BYPASS_1);



	smn_write(smn_dev, CLK_DFS_CNTL_N0, CLK0_DIVIDER);

	return 0;

}



static int acp63_audio_probe(struct platform_device *pdev)

{

	struct device *dev = &pdev->dev;

	struct acp_chip_info *chip;

	struct acp_dev_data *adata;

	struct resource *res;

	int ret;



	chip = dev_get_platdata(&pdev->dev);

	if (!chip || !chip->base) {

		dev_err(&pdev->dev, "ACP chip data is NULL\n");

		return -ENODEV;

	}



	if (chip->acp_rev != ACP63_DEV) {

		dev_err(&pdev->dev, "Un-supported ACP Revision %d\n", chip->acp_rev);

		return -ENODEV;

	}



	adata = devm_kzalloc(dev, sizeof(struct acp_dev_data), GFP_KERNEL);

	if (!adata)

		return -ENOMEM;



	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "acp_mem");

	if (!res) {

		dev_err(&pdev->dev, "IORESOURCE_MEM FAILED\n");

		return -ENODEV;

	}



	adata->acp_base = devm_ioremap(&pdev->dev, res->start, resource_size(res));

	if (!adata->acp_base)

		return -ENOMEM;



	res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "acp_dai_irq");

	if (!res) {

		dev_err(&pdev->dev, "IORESOURCE_IRQ FAILED\n");

		return -ENODEV;

	}



	adata->i2s_irq = res->start;

	adata->dev = dev;

	adata->dai_driver = acp63_dai;

	adata->num_dai = ARRAY_SIZE(acp63_dai);

	adata->rsrc = &rsrc;

	adata->machines = snd_soc_acpi_amd_acp63_acp_machines;

	acp_machine_select(adata);

	dev_set_drvdata(dev, adata);

	ret = acp63_i2s_master_clock_generate(adata);

	if (ret)

		return ret;



	acp_enable_interrupts(adata);

	acp_platform_register(dev);

	pm_runtime_set_autosuspend_delay(&pdev->dev, ACP_SUSPEND_DELAY_MS);

	pm_runtime_use_autosuspend(&pdev->dev);

	pm_runtime_mark_last_busy(&pdev->dev);

	pm_runtime_set_active(&pdev->dev);

	pm_runtime_enable(&pdev->dev);

	return 0;

}



static void acp63_audio_remove(struct platform_device *pdev)

{

	struct device *dev = &pdev->dev;

	struct acp_dev_data *adata = dev_get_drvdata(dev);



	acp_disable_interrupts(adata);

	acp_platform_unregister(dev);

	pm_runtime_disable(&pdev->dev);

}



static int __maybe_unused acp63_pcm_resume(struct device *dev)

{

	struct acp_dev_data *adata = dev_get_drvdata(dev);

	struct acp_stream *stream;

	struct snd_pcm_substream *substream;

	snd_pcm_uframes_t buf_in_frames;

	u64 buf_size;



	acp63_i2s_master_clock_generate(adata);

	spin_lock(&adata->acp_lock);

	list_for_each_entry(stream, &adata->stream_list, list) {

		if (stream) {

			substream = stream->substream;

			if (substream && substream->runtime) {

				buf_in_frames = (substream->runtime->buffer_size);

				buf_size = frames_to_bytes(substream->runtime, buf_in_frames);

				config_pte_for_stream(adata, stream);

				config_acp_dma(adata, stream, buf_size);

				if (stream->dai_id)

					restore_acp_i2s_params(substream, adata, stream);

				else

					restore_acp_pdm_params(substream, adata);

			}

		}

	}

	spin_unlock(&adata->acp_lock);

	return 0;

}



static const struct dev_pm_ops acp63_dma_pm_ops = {

	SET_SYSTEM_SLEEP_PM_OPS(NULL, acp63_pcm_resume)

};



static struct platform_driver acp63_driver = {

	.probe = acp63_audio_probe,

	.remove_new = acp63_audio_remove,

	.driver = {

		.name = "acp_asoc_acp63",

		.pm = &acp63_dma_pm_ops,

	},

};



module_platform_driver(acp63_driver);



MODULE_DESCRIPTION("AMD ACP acp63 Driver");

MODULE_IMPORT_NS(SND_SOC_ACP_COMMON);

MODULE_LICENSE("Dual BSD/GPL");

MODULE_ALIAS("platform:" DRV_NAME);

sound/soc/amd/acp/amd.h

+4 −0
Original line number Diff line number Diff line
@@ -20,6 +20,7 @@ 


#define ACP3X_DEV			3

#define ACP6X_DEV			6

#define ACP63_DEV			0x63



#define DMIC_INSTANCE			0x00

#define I2S_SP_INSTANCE			0x01
@@ -95,6 +96,9 @@ 
#define ACP6X_PGFSM_CONTROL                     0x1024

#define ACP6X_PGFSM_STATUS                      0x1028



#define ACP63_PGFSM_CONTROL			ACP6X_PGFSM_CONTROL

#define ACP63_PGFSM_STATUS			ACP6X_PGFSM_STATUS



#define ACP_SOFT_RST_DONE_MASK	0x00010001



#define ACP_PGFSM_CNTL_POWER_ON_MASK            0x01