ASoC: amd: acp: ACP code generic to support newer platforms

ADD Generic code to support to newer platforms, add
control threshold, irq control macros ,added structure for register
offset differences.
Signed-off-by: V sujith kumar Reddy <Vsujithkumar.Reddy@amd.com>
Link: https://lore.kernel.org/r/20220707161142.491034-3-Vsujithkumar.Reddy@amd.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/amd/acp/acp-i2s.c

@@ -199,6 +199,7 @@ static int acp_i2s_prepare(struct snd_pcm_substream *substream, struct snd_soc_d
 {
 	struct device *dev = dai->component->dev;
 	struct acp_dev_data *adata = dev_get_drvdata(dev);
+	struct acp_resource *rsrc = adata->rsrc;
 	struct acp_stream *stream = substream->runtime->private_data;
 	u32 reg_dma_size = 0, reg_fifo_size = 0, reg_fifo_addr = 0;
 	u32 phy_addr = 0, acp_fifo_addr = 0, ext_int_ctrl;
@@ -208,7 +209,7 @@ static int acp_i2s_prepare(struct snd_pcm_substream *substream, struct snd_soc_d
 	case I2S_SP_INSTANCE:
 		if (dir == SNDRV_PCM_STREAM_PLAYBACK) {
 			reg_dma_size = ACP_I2S_TX_DMA_SIZE;
-			acp_fifo_addr = ACP_SRAM_PTE_OFFSET +
+			acp_fifo_addr = rsrc->sram_pte_offset +
 						SP_PB_FIFO_ADDR_OFFSET;
 			reg_fifo_addr =	ACP_I2S_TX_FIFOADDR;
 			reg_fifo_size = ACP_I2S_TX_FIFOSIZE;
@@ -217,7 +218,7 @@ static int acp_i2s_prepare(struct snd_pcm_substream *substream, struct snd_soc_d
 			writel(phy_addr, adata->acp_base + ACP_I2S_TX_RINGBUFADDR);
 		} else {
 			reg_dma_size = ACP_I2S_RX_DMA_SIZE;
-			acp_fifo_addr = ACP_SRAM_PTE_OFFSET +
+			acp_fifo_addr = rsrc->sram_pte_offset +
 						SP_CAPT_FIFO_ADDR_OFFSET;
 			reg_fifo_addr = ACP_I2S_RX_FIFOADDR;
 			reg_fifo_size = ACP_I2S_RX_FIFOSIZE;
@@ -228,7 +229,7 @@ static int acp_i2s_prepare(struct snd_pcm_substream *substream, struct snd_soc_d
 	case I2S_BT_INSTANCE:
 		if (dir == SNDRV_PCM_STREAM_PLAYBACK) {
 			reg_dma_size = ACP_BT_TX_DMA_SIZE;
-			acp_fifo_addr = ACP_SRAM_PTE_OFFSET +
+			acp_fifo_addr = rsrc->sram_pte_offset +
 						BT_PB_FIFO_ADDR_OFFSET;
 			reg_fifo_addr = ACP_BT_TX_FIFOADDR;
 			reg_fifo_size = ACP_BT_TX_FIFOSIZE;
@@ -237,7 +238,7 @@ static int acp_i2s_prepare(struct snd_pcm_substream *substream, struct snd_soc_d
 			writel(phy_addr, adata->acp_base + ACP_BT_TX_RINGBUFADDR);
 		} else {
 			reg_dma_size = ACP_BT_RX_DMA_SIZE;
-			acp_fifo_addr = ACP_SRAM_PTE_OFFSET +
+			acp_fifo_addr = rsrc->sram_pte_offset +
 						BT_CAPT_FIFO_ADDR_OFFSET;
 			reg_fifo_addr = ACP_BT_RX_FIFOADDR;
 			reg_fifo_size = ACP_BT_RX_FIFOSIZE;
@@ -255,11 +256,13 @@ static int acp_i2s_prepare(struct snd_pcm_substream *substream, struct snd_soc_d
 	writel(acp_fifo_addr, adata->acp_base + reg_fifo_addr);
 	writel(FIFO_SIZE, adata->acp_base + reg_fifo_size);
 
-	ext_int_ctrl = readl(adata->acp_base + ACP_EXTERNAL_INTR_CNTL);
-	ext_int_ctrl |= BIT(I2S_RX_THRESHOLD) | BIT(BT_RX_THRESHOLD)
-			| BIT(I2S_TX_THRESHOLD) | BIT(BT_TX_THRESHOLD);
+	ext_int_ctrl = readl(ACP_EXTERNAL_INTR_CNTL(adata, rsrc->irqp_used));
+	ext_int_ctrl |= BIT(I2S_RX_THRESHOLD(rsrc->offset)) |
+			BIT(BT_RX_THRESHOLD(rsrc->offset)) |
+			BIT(I2S_TX_THRESHOLD(rsrc->offset)) |
+			BIT(BT_TX_THRESHOLD(rsrc->offset));
 
-	writel(ext_int_ctrl, adata->acp_base + ACP_EXTERNAL_INTR_CNTL);
+	writel(ext_int_ctrl, ACP_EXTERNAL_INTR_CNTL(adata, rsrc->irqp_used));
 
 	return 0;
 }
@@ -268,28 +271,30 @@ static int acp_i2s_startup(struct snd_pcm_substream *substream, struct snd_soc_d
 {
 	struct acp_stream *stream = substream->runtime->private_data;
 	struct device *dev = dai->component->dev;
+	struct acp_dev_data *adata = dev_get_drvdata(dev);
+	struct acp_resource *rsrc = adata->rsrc;
 	unsigned int dir = substream->stream;
 	unsigned int irq_bit = 0;
 
 	switch (dai->driver->id) {
 	case I2S_SP_INSTANCE:
 		if (dir == SNDRV_PCM_STREAM_PLAYBACK) {
-			irq_bit = BIT(I2S_TX_THRESHOLD);
+			irq_bit = BIT(I2S_TX_THRESHOLD(rsrc->offset));
 			stream->pte_offset = ACP_SRAM_SP_PB_PTE_OFFSET;
 			stream->fifo_offset = SP_PB_FIFO_ADDR_OFFSET;
 		} else {
-			irq_bit = BIT(I2S_RX_THRESHOLD);
+			irq_bit = BIT(I2S_RX_THRESHOLD(rsrc->offset));
 			stream->pte_offset = ACP_SRAM_SP_CP_PTE_OFFSET;
 			stream->fifo_offset = SP_CAPT_FIFO_ADDR_OFFSET;
 		}
 		break;
 	case I2S_BT_INSTANCE:
 		if (dir == SNDRV_PCM_STREAM_PLAYBACK) {
-			irq_bit = BIT(BT_TX_THRESHOLD);
+			irq_bit = BIT(BT_TX_THRESHOLD(rsrc->offset));
 			stream->pte_offset = ACP_SRAM_BT_PB_PTE_OFFSET;
 			stream->fifo_offset = BT_PB_FIFO_ADDR_OFFSET;
 		} else {
-			irq_bit = BIT(BT_RX_THRESHOLD);
+			irq_bit = BIT(BT_RX_THRESHOLD(rsrc->offset));
 			stream->pte_offset = ACP_SRAM_BT_CP_PTE_OFFSET;
 			stream->fifo_offset = BT_CAPT_FIFO_ADDR_OFFSET;
 		}
@@ -319,6 +324,7 @@ int asoc_acp_i2s_probe(struct snd_soc_dai *dai)
 {
 	struct device *dev = dai->component->dev;
 	struct acp_dev_data *adata = dev_get_drvdata(dev);
+	struct acp_resource *rsrc = adata->rsrc;
 	unsigned int val;
 
 	if (!adata->acp_base) {
@@ -326,8 +332,8 @@ int asoc_acp_i2s_probe(struct snd_soc_dai *dai)
 		return -EINVAL;
 	}
 
-	val = readl(adata->acp_base + ACP_I2S_PIN_CONFIG);
-	if (val != I2S_MODE) {
+	val = readl(adata->acp_base + rsrc->i2s_pin_cfg_offset);
+	if (val != rsrc->i2s_mode) {
 		dev_err(dev, "I2S Mode not supported val %x\n", val);
 		return -EINVAL;
 	}

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

@@ -160,9 +160,9 @@ static int acp_dmic_dai_startup(struct snd_pcm_substream *substream,
 	stream->reg_offset = ACP_REGION2_OFFSET;
 
 	/* Enable DMIC Interrupts */
-	ext_int_ctrl = readl(adata->acp_base + ACP_EXTERNAL_INTR_CNTL);
+	ext_int_ctrl = readl(ACP_EXTERNAL_INTR_CNTL(adata, 0));
 	ext_int_ctrl |= PDM_DMA_INTR_MASK;
-	writel(ext_int_ctrl, adata->acp_base + ACP_EXTERNAL_INTR_CNTL);
+	writel(ext_int_ctrl, ACP_EXTERNAL_INTR_CNTL(adata, 0));
 
 	return 0;
 }
@@ -175,9 +175,9 @@ static void acp_dmic_dai_shutdown(struct snd_pcm_substream *substream,
 	u32 ext_int_ctrl;
 
 	/* Disable DMIC interrupts */
-	ext_int_ctrl = readl(adata->acp_base + ACP_EXTERNAL_INTR_CNTL);
+	ext_int_ctrl = readl(ACP_EXTERNAL_INTR_CNTL(adata, 0));
 	ext_int_ctrl |= ~PDM_DMA_INTR_MASK;
-	writel(ext_int_ctrl, adata->acp_base + ACP_EXTERNAL_INTR_CNTL);
+	writel(ext_int_ctrl, ACP_EXTERNAL_INTR_CNTL(adata, 0));
 }
 
 const struct snd_soc_dai_ops acp_dmic_dai_ops = {

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

@@ -91,6 +91,7 @@ EXPORT_SYMBOL_NS_GPL(acp_machine_select, SND_SOC_ACP_COMMON);
 static irqreturn_t i2s_irq_handler(int irq, void *data)
 {
 	struct acp_dev_data *adata = data;
+	struct acp_resource *rsrc = adata->rsrc;
 	struct acp_stream *stream;
 	u16 i2s_flag = 0;
 	u32 val, i;
@@ -98,12 +99,13 @@ static irqreturn_t i2s_irq_handler(int irq, void *data)
 	if (!adata)
 		return IRQ_NONE;
 
-	val = readl(adata->acp_base + ACP_EXTERNAL_INTR_STAT);
+	val = readl(ACP_EXTERNAL_INTR_STAT(adata, rsrc->irqp_used));
 
 	for (i = 0; i < ACP_MAX_STREAM; i++) {
 		stream = adata->stream[i];
 		if (stream && (val & stream->irq_bit)) {
-			writel(stream->irq_bit, adata->acp_base + ACP_EXTERNAL_INTR_STAT);
+			writel(stream->irq_bit,
+			       ACP_EXTERNAL_INTR_STAT(adata, rsrc->irqp_used));
 			snd_pcm_period_elapsed(stream->substream);
 			i2s_flag = 1;
 			break;
@@ -118,6 +120,7 @@ static irqreturn_t i2s_irq_handler(int irq, void *data)
 
 static void config_pte_for_stream(struct acp_dev_data *adata, struct acp_stream *stream)
 {
+	struct acp_resource *rsrc = adata->rsrc;
 	u32 pte_reg, pte_size, reg_val;
 
 	/* Use ATU base Group5 */
@@ -126,7 +129,7 @@ static void config_pte_for_stream(struct acp_dev_data *adata, struct acp_stream
 	stream->reg_offset = 0x02000000;
 
 	/* Group Enable */
-	reg_val = ACP_SRAM_PTE_OFFSET;
+	reg_val = rsrc->sram_pte_offset;
 	writel(reg_val | BIT(31), adata->acp_base + pte_reg);
 	writel(PAGE_SIZE_4K_ENABLE,  adata->acp_base + pte_size);
 }
@@ -135,6 +138,7 @@ static void config_acp_dma(struct acp_dev_data *adata, int cpu_id, int size)
 {
 	struct acp_stream *stream = adata->stream[cpu_id];
 	struct snd_pcm_substream *substream = stream->substream;
+	struct acp_resource *rsrc = adata->rsrc;
 	dma_addr_t addr = substream->dma_buffer.addr;
 	int num_pages = (PAGE_ALIGN(size) >> PAGE_SHIFT);
 	u32 low, high, val;
@@ -146,9 +150,9 @@ static void config_acp_dma(struct acp_dev_data *adata, int cpu_id, int size)
 		/* Load the low address of page int ACP SRAM through SRBM */
 		low = lower_32_bits(addr);
 		high = upper_32_bits(addr);
-		writel(low, adata->acp_base + ACP_SCRATCH_REG_0 + val);
+		writel(low, adata->acp_base + rsrc->scratch_reg_offset + val);
 		high |= BIT(31);
-		writel(high, adata->acp_base + ACP_SCRATCH_REG_0 + val + 4);
+		writel(high, adata->acp_base + rsrc->scratch_reg_offset + val + 4);
 
 		/* Move to next physically contiguous page */
 		val += 8;
@@ -187,7 +191,7 @@ static int acp_dma_open(struct snd_soc_component *component, struct snd_pcm_subs
 	}
 	runtime->private_data = stream;
 
-	writel(1, adata->acp_base + ACP_EXTERNAL_INTR_ENB);
+	writel(1, ACP_EXTERNAL_INTR_ENB(adata));
 
 	return ret;
 }

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

@@ -39,6 +39,17 @@
 #define ACP_ERROR_MASK 0x20000000
 #define ACP_EXT_INTR_STAT_CLEAR_MASK 0xFFFFFFFF
 
+static struct acp_resource rsrc = {
+	.offset = 20,
+	.no_of_ctrls = 1,
+	.irqp_used = 0,
+	.irq_reg_offset = 0x1800,
+	.i2s_pin_cfg_offset = 0x1400,
+	.i2s_mode = 0x04,
+	.scratch_reg_offset = 0x12800,
+	.sram_pte_offset = 0x02052800,
+};
+
 static struct snd_soc_acpi_codecs amp_rt1019 = {
 	.num_codecs = 1,
 	.codecs = {"10EC1019"}
@@ -186,20 +197,24 @@ static int acp3x_reset(void __iomem *base)
 	return readl_poll_timeout(base + ACP_SOFT_RESET, val, !val, DELAY_US, ACP_TIMEOUT);
 }
 
-static void acp3x_enable_interrupts(void __iomem *base)
+static void acp3x_enable_interrupts(struct acp_dev_data *adata)
 {
+	struct acp_resource *rsrc = adata->rsrc;
 	u32 ext_intr_ctrl;
 
-	writel(0x01, base + ACP_EXTERNAL_INTR_ENB);
-	ext_intr_ctrl = readl(base + ACP_EXTERNAL_INTR_CNTL);
+	writel(0x01, ACP_EXTERNAL_INTR_ENB(adata));
+	ext_intr_ctrl = readl(ACP_EXTERNAL_INTR_CNTL(adata, rsrc->irqp_used));
 	ext_intr_ctrl |= ACP_ERROR_MASK;
-	writel(ext_intr_ctrl, base + ACP_EXTERNAL_INTR_CNTL);
+	writel(ext_intr_ctrl, ACP_EXTERNAL_INTR_CNTL(adata, rsrc->irqp_used));
 }
 
-static void acp3x_disable_interrupts(void __iomem *base)
+static void acp3x_disable_interrupts(struct acp_dev_data *adata)
 {
-	writel(ACP_EXT_INTR_STAT_CLEAR_MASK, base + ACP_EXTERNAL_INTR_STAT);
-	writel(0x00, base + ACP_EXTERNAL_INTR_ENB);
+	struct acp_resource *rsrc = adata->rsrc;
+
+	writel(ACP_EXT_INTR_STAT_CLEAR_MASK,
+	       ACP_EXTERNAL_INTR_STAT(adata, rsrc->irqp_used));
+	writel(0x00, ACP_EXTERNAL_INTR_ENB(adata));
 }
 
 static int rn_acp_init(void __iomem *base)
@@ -218,8 +233,6 @@ static int rn_acp_init(void __iomem *base)
 	if (ret)
 		return ret;
 
-	acp3x_enable_interrupts(base);
-
 	return 0;
 }
 
@@ -227,8 +240,6 @@ static int rn_acp_deinit(void __iomem *base)
 {
 	int ret = 0;
 
-	acp3x_disable_interrupts(base);
-
 	/* Reset */
 	ret = acp3x_reset(base);
 	if (ret)
@@ -290,11 +301,13 @@ static int renoir_audio_probe(struct platform_device *pdev)
 	adata->dev = dev;
 	adata->dai_driver = acp_renoir_dai;
 	adata->num_dai = ARRAY_SIZE(acp_renoir_dai);
+	adata->rsrc = &rsrc;
 
 	adata->machines = snd_soc_acpi_amd_acp_machines;
 	acp_machine_select(adata);
 
 	dev_set_drvdata(dev, adata);
+	acp3x_enable_interrupts(adata);
 	acp_platform_register(dev);
 
 	return 0;
@@ -303,11 +316,14 @@ static int renoir_audio_probe(struct platform_device *pdev)
 static int renoir_audio_remove(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
+	struct acp_dev_data *adata = dev_get_drvdata(dev);
 	struct acp_chip_info *chip;
 	int ret;
 
 	chip = dev_get_platdata(&pdev->dev);
 
+	acp3x_disable_interrupts(adata);
+
 	ret = rn_acp_deinit(chip->base);
 	if (ret)
 		dev_err(&pdev->dev, "ACP de-init Failed (%pe)\n", ERR_PTR(ret));

sound/soc/amd/acp/amd.h

@@ -32,13 +32,12 @@
 #define ACP3x_I2STDM_REG_END		0x1242410
 #define ACP3x_BT_TDM_REG_START		0x1242800
 #define ACP3x_BT_TDM_REG_END		0x1242810
-#define I2S_MODE			0x04
-#define I2S_RX_THRESHOLD		27
-#define I2S_TX_THRESHOLD		28
-#define BT_TX_THRESHOLD			26
-#define BT_RX_THRESHOLD			25
 
-#define ACP_SRAM_PTE_OFFSET		0x02052800
+#define THRESHOLD(bit, base)	((bit) + (base))
+#define I2S_RX_THRESHOLD(base)	THRESHOLD(7, base)
+#define I2S_TX_THRESHOLD(base)	THRESHOLD(8, base)
+#define BT_TX_THRESHOLD(base)	THRESHOLD(6, base)
+#define BT_RX_THRESHOLD(base)	THRESHOLD(5, base)
 
 #define ACP_SRAM_SP_PB_PTE_OFFSET	0x0
 #define ACP_SRAM_SP_CP_PTE_OFFSET	0x100
@@ -92,6 +91,17 @@ struct acp_stream {
 	u32 fifo_offset;
 };
 
+struct acp_resource {
+	int offset;
+	int no_of_ctrls;
+	int irqp_used;
+	u32 irq_reg_offset;
+	u32 i2s_pin_cfg_offset;
+	int i2s_mode;
+	u64 scratch_reg_offset;
+	u64 sram_pte_offset;
+};
+
 struct acp_dev_data {
 	char *name;
 	struct device *dev;
@@ -106,6 +116,8 @@ struct acp_dev_data {
 
 	struct snd_soc_acpi_mach *machines;
 	struct platform_device *mach_dev;
+
+	struct acp_resource *rsrc;
 };
 
 extern const struct snd_soc_dai_ops asoc_acp_cpu_dai_ops;

sound/soc/amd/acp/chip_offset_byte.h

@@ -20,11 +20,13 @@
 #define ACP_SOFT_RESET                          0x1000
 #define ACP_CONTROL                             0x1004
 
-#define ACP_EXTERNAL_INTR_ENB                         0x1800
-#define ACP_EXTERNAL_INTR_CNTL                        0x1804
-#define ACP_EXTERNAL_INTR_STAT                        0x1808
-#define ACP_I2S_PIN_CONFIG                            0x1400
-#define ACP_SCRATCH_REG_0                             0x12800
+#define ACP_EXTERNAL_INTR_REG_ADDR(adata, offset, ctrl) \
+	(adata->acp_base + adata->rsrc->irq_reg_offset + offset + (ctrl * 0x04))
+
+#define ACP_EXTERNAL_INTR_ENB(adata) ACP_EXTERNAL_INTR_REG_ADDR(adata, 0x0, 0x0)
+#define ACP_EXTERNAL_INTR_CNTL(adata, ctrl) ACP_EXTERNAL_INTR_REG_ADDR(adata, 0x4, ctrl)
+#define ACP_EXTERNAL_INTR_STAT(adata, ctrl) ACP_EXTERNAL_INTR_REG_ADDR(adata, \
+	(0x4 + (adata->rsrc->no_of_ctrls * 0x04)), ctrl)
 
 /* Registers from ACP_AUDIO_BUFFERS block */