1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
3 // This file is provided under a dual BSD/GPLv2 license. When using or
4 // redistributing this file, you may do so under either license.
6 // Copyright(c) 2021 Advanced Micro Devices, Inc.
8 // Authors: Ajit Kumar Pandey <AjitKumar.Pandey@amd.com>
12 * Hardware interface for Renoir ACP block
15 #include <linux/platform_device.h>
16 #include <linux/module.h>
17 #include <linux/err.h>
19 #include <sound/pcm_params.h>
20 #include <sound/soc.h>
21 #include <sound/soc-dai.h>
22 #include <linux/dma-mapping.h>
26 #define DRV_NAME "acp_asoc_renoir"
28 #define ACP_SOFT_RST_DONE_MASK 0x00010001
30 #define ACP_PWR_ON_MASK 0x01
31 #define ACP_PWR_OFF_MASK 0x00
32 #define ACP_PGFSM_STAT_MASK 0x03
33 #define ACP_POWERED_ON 0x00
34 #define ACP_PWR_ON_IN_PROGRESS 0x01
35 #define ACP_POWERED_OFF 0x02
37 #define ACP_TIMEOUT 500
39 #define ACP_ERROR_MASK 0x20000000
40 #define ACP_EXT_INTR_STAT_CLEAR_MASK 0xFFFFFFFF
42 static struct acp_resource rsrc = {
46 .irq_reg_offset = 0x1800,
47 .i2s_pin_cfg_offset = 0x1400,
49 .scratch_reg_offset = 0x12800,
50 .sram_pte_offset = 0x02052800,
53 static struct snd_soc_acpi_codecs amp_rt1019 = {
55 .codecs = {"10EC1019"}
58 static struct snd_soc_acpi_codecs amp_max = {
60 .codecs = {"MX98360A"}
63 static struct snd_soc_acpi_mach snd_soc_acpi_amd_acp_machines[] = {
66 .drv_name = "acp3xalc56821019",
67 .machine_quirk = snd_soc_acpi_codec_list,
68 .quirk_data = &_rt1019,
72 .drv_name = "acp3xalc5682sm98360",
73 .machine_quirk = snd_soc_acpi_codec_list,
74 .quirk_data = &_max,
78 .drv_name = "acp3xalc5682s1019",
79 .machine_quirk = snd_soc_acpi_codec_list,
80 .quirk_data = &_rt1019,
84 .drv_name = "renoir-acp",
89 static struct snd_soc_dai_driver acp_renoir_dai[] = {
92 .id = I2S_SP_INSTANCE,
94 .stream_name = "I2S SP Playback",
95 .rates = SNDRV_PCM_RATE_8000_96000,
96 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |
97 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE,
104 .stream_name = "I2S SP Capture",
105 .rates = SNDRV_PCM_RATE_8000_48000,
106 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |
107 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE,
113 .ops = &asoc_acp_cpu_dai_ops,
114 .probe = &asoc_acp_i2s_probe,
117 .name = "acp-i2s-bt",
118 .id = I2S_BT_INSTANCE,
120 .stream_name = "I2S BT Playback",
121 .rates = SNDRV_PCM_RATE_8000_96000,
122 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |
123 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE,
130 .stream_name = "I2S BT Capture",
131 .rates = SNDRV_PCM_RATE_8000_48000,
132 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |
133 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE,
139 .ops = &asoc_acp_cpu_dai_ops,
140 .probe = &asoc_acp_i2s_probe,
143 .name = "acp-pdm-dmic",
146 .rates = SNDRV_PCM_RATE_8000_48000,
147 .formats = SNDRV_PCM_FMTBIT_S32_LE,
153 .ops = &acp_dmic_dai_ops,
157 static int acp3x_power_on(void __iomem *base)
161 val = readl(base + ACP_PGFSM_STATUS);
163 if (val == ACP_POWERED_ON)
166 if ((val & ACP_PGFSM_STAT_MASK) != ACP_PWR_ON_IN_PROGRESS)
167 writel(ACP_PWR_ON_MASK, base + ACP_PGFSM_CONTROL);
169 return readl_poll_timeout(base + ACP_PGFSM_STATUS, val, !val, DELAY_US, ACP_TIMEOUT);
172 static int acp3x_power_off(void __iomem *base)
176 writel(ACP_PWR_OFF_MASK, base + ACP_PGFSM_CONTROL);
178 return readl_poll_timeout(base + ACP_PGFSM_STATUS, val,
179 (val & ACP_PGFSM_STAT_MASK) == ACP_POWERED_OFF,
180 DELAY_US, ACP_TIMEOUT);
183 static int acp3x_reset(void __iomem *base)
188 writel(1, base + ACP_SOFT_RESET);
190 ret = readl_poll_timeout(base + ACP_SOFT_RESET, val, val & ACP_SOFT_RST_DONE_MASK,
191 DELAY_US, ACP_TIMEOUT);
195 writel(0, base + ACP_SOFT_RESET);
197 return readl_poll_timeout(base + ACP_SOFT_RESET, val, !val, DELAY_US, ACP_TIMEOUT);
200 static void acp3x_enable_interrupts(struct acp_dev_data *adata)
202 struct acp_resource *rsrc = adata->rsrc;
205 writel(0x01, ACP_EXTERNAL_INTR_ENB(adata));
206 ext_intr_ctrl = readl(ACP_EXTERNAL_INTR_CNTL(adata, rsrc->irqp_used));
207 ext_intr_ctrl |= ACP_ERROR_MASK;
208 writel(ext_intr_ctrl, ACP_EXTERNAL_INTR_CNTL(adata, rsrc->irqp_used));
211 static void acp3x_disable_interrupts(struct acp_dev_data *adata)
213 struct acp_resource *rsrc = adata->rsrc;
215 writel(ACP_EXT_INTR_STAT_CLEAR_MASK,
216 ACP_EXTERNAL_INTR_STAT(adata, rsrc->irqp_used));
217 writel(0x00, ACP_EXTERNAL_INTR_ENB(adata));
220 static int rn_acp_init(void __iomem *base)
225 ret = acp3x_power_on(base);
229 writel(0x01, base + ACP_CONTROL);
232 ret = acp3x_reset(base);
239 static int rn_acp_deinit(void __iomem *base)
244 ret = acp3x_reset(base);
248 writel(0x00, base + ACP_CONTROL);
251 ret = acp3x_power_off(base);
257 static int renoir_audio_probe(struct platform_device *pdev)
259 struct device *dev = &pdev->dev;
260 struct acp_chip_info *chip;
261 struct acp_dev_data *adata;
262 struct resource *res;
265 chip = dev_get_platdata(&pdev->dev);
266 if (!chip || !chip->base) {
267 dev_err(&pdev->dev, "ACP chip data is NULL\n");
271 if (chip->acp_rev != ACP3X_DEV) {
272 dev_err(&pdev->dev, "Un-supported ACP Revision %d\n", chip->acp_rev);
276 ret = rn_acp_init(chip->base);
278 dev_err(&pdev->dev, "ACP Init failed\n");
282 adata = devm_kzalloc(dev, sizeof(struct acp_dev_data), GFP_KERNEL);
286 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "acp_mem");
288 dev_err(&pdev->dev, "IORESOURCE_MEM FAILED\n");
292 adata->acp_base = devm_ioremap(&pdev->dev, res->start, resource_size(res));
293 if (!adata->acp_base)
296 ret = platform_get_irq_byname(pdev, "acp_dai_irq");
299 adata->i2s_irq = ret;
302 adata->dai_driver = acp_renoir_dai;
303 adata->num_dai = ARRAY_SIZE(acp_renoir_dai);
306 adata->machines = snd_soc_acpi_amd_acp_machines;
307 acp_machine_select(adata);
309 dev_set_drvdata(dev, adata);
310 acp3x_enable_interrupts(adata);
311 acp_platform_register(dev);
316 static int renoir_audio_remove(struct platform_device *pdev)
318 struct device *dev = &pdev->dev;
319 struct acp_dev_data *adata = dev_get_drvdata(dev);
320 struct acp_chip_info *chip;
323 chip = dev_get_platdata(&pdev->dev);
325 acp3x_disable_interrupts(adata);
327 ret = rn_acp_deinit(chip->base);
329 dev_err(&pdev->dev, "ACP de-init Failed (%pe)\n", ERR_PTR(ret));
331 acp_platform_unregister(dev);
335 static struct platform_driver renoir_driver = {
336 .probe = renoir_audio_probe,
337 .remove = renoir_audio_remove,
339 .name = "acp_asoc_renoir",
343 module_platform_driver(renoir_driver);
345 MODULE_DESCRIPTION("AMD ACP Renoir Driver");
346 MODULE_IMPORT_NS(SND_SOC_ACP_COMMON);
347 MODULE_LICENSE("Dual BSD/GPL");
348 MODULE_ALIAS("platform:" DRV_NAME);