ASoC: amd: ps: add soundwire wake interrupt handling

Add SoundWire wake interrupt handling for ACP7.0 & ACP7.1 platforms.

Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://patch.msgid.link/20250207062819.1527184-18-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/amd/ps/acp63.h b/sound/soc/amd/ps/acp63.h
index 48dac2a044c222a3c3028b35b74169aba0d864e2..9940151b0675e56f64c10a21dcb1c68be981ddd0 100644 (file)
--- a/sound/soc/amd/ps/acp63.h
+++ b/sound/soc/amd/ps/acp63.h
@@ -139,6 +139,10 @@
 #define ACP70_PGFSM_STATUS_MASK                        0xFF
 #define ACP70_TIMEOUT                          2000
 #define ACP70_SDW_HOST_WAKE_MASK       0x0C00000
+#define ACP70_SDW0_HOST_WAKE_STAT      BIT(24)
+#define ACP70_SDW1_HOST_WAKE_STAT      BIT(25)
+#define ACP70_SDW0_PME_STAT            BIT(26)
+#define ACP70_SDW1_PME_STAT            BIT(27)
 
 #define ACP70_SDW0_DMA_MAX_STREAMS     6
 #define ACP70_SDW1_DMA_MAX_STREAMS     ACP70_SDW0_DMA_MAX_STREAMS
@@ -325,6 +329,8 @@ struct acp_hw_ops {
  * @is_pdm_config: flat set to true when PDM configuration is selected from BIOS
  * @is_sdw_config: flag set to true when SDW configuration is selected from BIOS
  * @sdw_en_stat: flag set to true when any one of the SoundWire manager instance is enabled
+ * @acp70_sdw0_wake_event: flag set to true when wake irq asserted for SW0 instance
+ * @acp70_sdw1_wake_event: flag set to true when wake irq asserted for SW1 instance
  * @addr: pci ioremap address
  * @reg_range: ACP reigister range
  * @acp_rev: ACP PCI revision id
@@ -356,6 +362,8 @@ struct acp63_dev_data {
        bool is_pdm_config;
        bool is_sdw_config;
        bool sdw_en_stat;
+       bool acp70_sdw0_wake_event;
+       bool acp70_sdw1_wake_event;
        u32 addr;
        u32 reg_range;
        u32 acp_rev;

diff --git a/sound/soc/amd/ps/pci-ps.c b/sound/soc/amd/ps/pci-ps.c
index a9e140ca129616e2cbedf8c7b5b121ae0f39b3e8..6a725cf36345573b3f1b0f29d70b640c1fb83896 100644 (file)
--- a/sound/soc/amd/ps/pci-ps.c
+++ b/sound/soc/amd/ps/pci-ps.c
@@ -21,6 +21,65 @@
 
 #include "acp63.h"
 
+static void handle_acp70_sdw_wake_event(struct acp63_dev_data *adata)
+{
+       struct amd_sdw_manager *amd_manager;
+
+       if (adata->acp70_sdw0_wake_event) {
+               amd_manager = dev_get_drvdata(&adata->sdw->pdev[0]->dev);
+               if (amd_manager)
+                       pm_request_resume(amd_manager->dev);
+               adata->acp70_sdw0_wake_event = 0;
+       }
+
+       if (adata->acp70_sdw1_wake_event) {
+               amd_manager = dev_get_drvdata(&adata->sdw->pdev[1]->dev);
+               if (amd_manager)
+                       pm_request_resume(amd_manager->dev);
+               adata->acp70_sdw1_wake_event = 0;
+       }
+}
+
+static short int check_and_handle_acp70_sdw_wake_irq(struct acp63_dev_data *adata)
+{
+       u32 ext_intr_stat1;
+       int irq_flag = 0;
+       bool sdw_wake_irq = false;
+
+       ext_intr_stat1 = readl(adata->acp63_base + ACP_EXTERNAL_INTR_STAT1);
+       if (ext_intr_stat1 & ACP70_SDW0_HOST_WAKE_STAT) {
+               writel(ACP70_SDW0_HOST_WAKE_STAT, adata->acp63_base + ACP_EXTERNAL_INTR_STAT1);
+               adata->acp70_sdw0_wake_event = true;
+               sdw_wake_irq = true;
+       }
+
+       if (ext_intr_stat1 & ACP70_SDW1_HOST_WAKE_STAT) {
+               writel(ACP70_SDW1_HOST_WAKE_STAT, adata->acp63_base + ACP_EXTERNAL_INTR_STAT1);
+               adata->acp70_sdw1_wake_event = true;
+               sdw_wake_irq = true;
+       }
+
+       if (ext_intr_stat1 & ACP70_SDW0_PME_STAT) {
+               writel(0, adata->acp63_base + ACP_SW0_WAKE_EN);
+               writel(ACP70_SDW0_PME_STAT, adata->acp63_base + ACP_EXTERNAL_INTR_STAT1);
+               adata->acp70_sdw0_wake_event = true;
+               sdw_wake_irq = true;
+       }
+
+       if (ext_intr_stat1 & ACP70_SDW1_PME_STAT) {
+               writel(0, adata->acp63_base + ACP_SW1_WAKE_EN);
+               writel(ACP70_SDW1_PME_STAT, adata->acp63_base + ACP_EXTERNAL_INTR_STAT1);
+               adata->acp70_sdw1_wake_event = true;
+               sdw_wake_irq = true;
+       }
+
+       if (sdw_wake_irq) {
+               handle_acp70_sdw_wake_event(adata);
+               irq_flag = 1;
+       }
+       return irq_flag;
+}
+
 static short int check_and_handle_sdw_dma_irq(struct acp63_dev_data *adata, u32 ext_intr_stat,
                                              u32 ext_intr_stat1)
 {
@@ -163,6 +222,9 @@ static irqreturn_t acp63_irq_handler(int irq, void *dev_id)
                irq_flag = 1;
        }
 
+       if (adata->acp_rev >= ACP70_PCI_REV)
+               irq_flag = check_and_handle_acp70_sdw_wake_irq(adata);
+
        if (ext_intr_stat & BIT(PDM_DMA_STAT)) {
                ps_pdm_data = dev_get_drvdata(&adata->pdm_dev->dev);
                writel(BIT(PDM_DMA_STAT), adata->acp63_base + ACP_EXTERNAL_INTR_STAT);