diff options
| author | Vijendar Mukunda <Vijendar.Mukunda@amd.com> | 2023-06-12 12:58:56 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2023-06-21 01:30:26 +0300 |
| commit | e1cb350610ce88d9995b8b287930d3ba821d9f2b (patch) | |
| tree | 2ef002245f878fadb100ba98dcadd6f56e78d2fb /sound | |
| parent | d1351c30ac8a6cf61b0bbe9fcbc8d2851cd44f3c (diff) | |
| download | linux-e1cb350610ce88d9995b8b287930d3ba821d9f2b.tar.xz | |
ASoC: amd: ps: handle SoundWire interrupts in acp pci driver
Handle SoundWire manager related interrupts in ACP PCI driver
interrupt handler and schedule SoundWire manager work queue for
further processing.
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://lore.kernel.org/r/20230612095903.2113464-3-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/amd/ps/acp63.h | 3 | ||||
| -rw-r--r-- | sound/soc/amd/ps/pci-ps.c | 48 |
2 files changed, 46 insertions, 5 deletions
diff --git a/sound/soc/amd/ps/acp63.h b/sound/soc/amd/ps/acp63.h index 80ab542529a7..494f498bdc91 100644 --- a/sound/soc/amd/ps/acp63.h +++ b/sound/soc/amd/ps/acp63.h @@ -99,6 +99,9 @@ * manager instance combination. */ #define ACP63_SDW_PDM_DEV_CONFIG GENMASK(1, 0) +#define ACP_SDW0_STAT BIT(21) +#define ACP_SDW1_STAT BIT(2) +#define ACP_ERROR_IRQ BIT(29) enum acp_config { ACP_CONFIG_0 = 0, diff --git a/sound/soc/amd/ps/pci-ps.c b/sound/soc/amd/ps/pci-ps.c index cf57ad2d7ccc..ac82dbe13351 100644 --- a/sound/soc/amd/ps/pci-ps.c +++ b/sound/soc/amd/ps/pci-ps.c @@ -56,6 +56,7 @@ static int acp63_reset(void __iomem *acp_base) static void acp63_enable_interrupts(void __iomem *acp_base) { writel(1, acp_base + ACP_EXTERNAL_INTR_ENB); + writel(ACP_ERROR_IRQ, acp_base + ACP_EXTERNAL_INTR_CNTL); } static void acp63_disable_interrupts(void __iomem *acp_base) @@ -102,23 +103,60 @@ static irqreturn_t acp63_irq_handler(int irq, void *dev_id) { struct acp63_dev_data *adata; struct pdm_dev_data *ps_pdm_data; - u32 val; + struct amd_sdw_manager *amd_manager; + u32 ext_intr_stat, ext_intr_stat1; + u16 irq_flag = 0; u16 pdev_index; adata = dev_id; if (!adata) return IRQ_NONE; + /* ACP interrupts will be cleared by reading particular bit and writing + * same value to the status register. writing zero's doesn't have any + * effect. + * Bit by bit checking of IRQ field is implemented. + */ + ext_intr_stat = readl(adata->acp63_base + ACP_EXTERNAL_INTR_STAT); + if (ext_intr_stat & ACP_SDW0_STAT) { + writel(ACP_SDW0_STAT, adata->acp63_base + ACP_EXTERNAL_INTR_STAT); + pdev_index = adata->sdw0_dev_index; + amd_manager = dev_get_drvdata(&adata->pdev[pdev_index]->dev); + if (amd_manager) + schedule_work(&amd_manager->amd_sdw_irq_thread); + irq_flag = 1; + } + + ext_intr_stat1 = readl(adata->acp63_base + ACP_EXTERNAL_INTR_STAT1); + if (ext_intr_stat1 & ACP_SDW1_STAT) { + writel(ACP_SDW1_STAT, adata->acp63_base + ACP_EXTERNAL_INTR_STAT1); + pdev_index = adata->sdw1_dev_index; + amd_manager = dev_get_drvdata(&adata->pdev[pdev_index]->dev); + if (amd_manager) + schedule_work(&amd_manager->amd_sdw_irq_thread); + irq_flag = 1; + } - val = readl(adata->acp63_base + ACP_EXTERNAL_INTR_STAT); - if (val & BIT(PDM_DMA_STAT)) { + if (ext_intr_stat & ACP_ERROR_IRQ) { + writel(ACP_ERROR_IRQ, adata->acp63_base + ACP_EXTERNAL_INTR_STAT); + /* TODO: Report SoundWire Manager instance errors */ + writel(0, adata->acp63_base + ACP_SW0_I2S_ERROR_REASON); + writel(0, adata->acp63_base + ACP_SW1_I2S_ERROR_REASON); + writel(0, adata->acp63_base + ACP_ERROR_STATUS); + irq_flag = 1; + } + + if (ext_intr_stat & BIT(PDM_DMA_STAT)) { pdev_index = adata->pdm_dev_index; ps_pdm_data = dev_get_drvdata(&adata->pdev[pdev_index]->dev); writel(BIT(PDM_DMA_STAT), adata->acp63_base + ACP_EXTERNAL_INTR_STAT); if (ps_pdm_data->capture_stream) snd_pcm_period_elapsed(ps_pdm_data->capture_stream); - return IRQ_HANDLED; + irq_flag = 1; } - return IRQ_NONE; + if (irq_flag) + return IRQ_HANDLED; + else + return IRQ_NONE; } static int sdw_amd_scan_controller(struct device *dev) |