diff options
| -rw-r--r-- | sound/soc/fsl/fsl_ssi.c | 40 |
1 files changed, 32 insertions, 8 deletions
diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c index 671be33aa9d2..bc904696d820 100644 --- a/sound/soc/fsl/fsl_ssi.c +++ b/sound/soc/fsl/fsl_ssi.c @@ -127,6 +127,7 @@ static inline void write_ssi_mask(u32 __iomem *addr, u32 clear, u32 set) enum fsl_ssi_type { FSL_SSI_MCP8610, FSL_SSI_MX21, + FSL_SSI_MX35, FSL_SSI_MX51, }; @@ -151,6 +152,7 @@ struct fsl_ssi_private { struct snd_soc_dai_driver cpu_dai_drv; struct platform_device *pdev; + enum fsl_ssi_type hw_type; bool new_binding; bool ssi_on_imx; bool imx_ac97; @@ -199,6 +201,7 @@ struct fsl_ssi_private { static const struct of_device_id fsl_ssi_ids[] = { { .compatible = "fsl,mpc8610-ssi", .data = (void *) FSL_SSI_MCP8610}, { .compatible = "fsl,imx51-ssi", .data = (void *) FSL_SSI_MX51}, + { .compatible = "fsl,imx35-ssi", .data = (void *) FSL_SSI_MX35}, { .compatible = "fsl,imx21-ssi", .data = (void *) FSL_SSI_MX21}, {} }; @@ -222,7 +225,26 @@ static irqreturn_t fsl_ssi_isr(int irq, void *dev_id) struct ccsr_ssi __iomem *ssi = ssi_private->ssi; irqreturn_t ret = IRQ_NONE; __be32 sisr; - __be32 sisr2 = 0; + __be32 sisr2; + __be32 sisr_write_mask = 0; + + switch (ssi_private->hw_type) { + case FSL_SSI_MX21: + sisr_write_mask = 0; + break; + + case FSL_SSI_MCP8610: + case FSL_SSI_MX35: + sisr_write_mask = CCSR_SSI_SISR_RFRC | CCSR_SSI_SISR_TFRC | + CCSR_SSI_SISR_ROE0 | CCSR_SSI_SISR_ROE1 | + CCSR_SSI_SISR_TUE0 | CCSR_SSI_SISR_TUE1; + break; + + case FSL_SSI_MX51: + sisr_write_mask = CCSR_SSI_SISR_ROE0 | CCSR_SSI_SISR_ROE1 | + CCSR_SSI_SISR_TUE0 | CCSR_SSI_SISR_TUE1; + break; + } /* We got an interrupt, so read the status register to see what we were interrupted for. We mask it with the Interrupt Enable register @@ -232,13 +254,11 @@ static irqreturn_t fsl_ssi_isr(int irq, void *dev_id) if (sisr & CCSR_SSI_SISR_RFRC) { ssi_private->stats.rfrc++; - sisr2 |= CCSR_SSI_SISR_RFRC; ret = IRQ_HANDLED; } if (sisr & CCSR_SSI_SISR_TFRC) { ssi_private->stats.tfrc++; - sisr2 |= CCSR_SSI_SISR_TFRC; ret = IRQ_HANDLED; } @@ -279,25 +299,21 @@ static irqreturn_t fsl_ssi_isr(int irq, void *dev_id) if (sisr & CCSR_SSI_SISR_ROE1) { ssi_private->stats.roe1++; - sisr2 |= CCSR_SSI_SISR_ROE1; ret = IRQ_HANDLED; } if (sisr & CCSR_SSI_SISR_ROE0) { ssi_private->stats.roe0++; - sisr2 |= CCSR_SSI_SISR_ROE0; ret = IRQ_HANDLED; } if (sisr & CCSR_SSI_SISR_TUE1) { ssi_private->stats.tue1++; - sisr2 |= CCSR_SSI_SISR_TUE1; ret = IRQ_HANDLED; } if (sisr & CCSR_SSI_SISR_TUE0) { ssi_private->stats.tue0++; - sisr2 |= CCSR_SSI_SISR_TUE0; ret = IRQ_HANDLED; } @@ -341,6 +357,7 @@ static irqreturn_t fsl_ssi_isr(int irq, void *dev_id) ret = IRQ_HANDLED; } + sisr2 = sisr & sisr_write_mask; /* Clear the bits that we set */ if (sisr2) write_ssi(sisr2, &ssi->sisr); @@ -1180,6 +1197,7 @@ static int fsl_ssi_probe(struct platform_device *pdev) ssi_private->use_dma = !of_property_read_bool(np, "fsl,fiq-stream-filter"); + ssi_private->hw_type = hw_type; if (ac97) { memcpy(&ssi_private->cpu_dai_drv, &fsl_ssi_ac97_dai, @@ -1299,7 +1317,13 @@ static int fsl_ssi_probe(struct platform_device *pdev) dma_events[0], shared ? IMX_DMATYPE_SSI_SP : IMX_DMATYPE_SSI); imx_pcm_dma_params_init_data(&ssi_private->filter_data_rx, dma_events[1], shared ? IMX_DMATYPE_SSI_SP : IMX_DMATYPE_SSI); - } else if (ssi_private->use_dma) { + } + + /* + * Enable interrupts only for MCP8610 and MX51. The other MXs have + * different writeable interrupt status registers. + */ + if (ssi_private->use_dma) { /* The 'name' should not have any slashes in it. */ ret = devm_request_irq(&pdev->dev, ssi_private->irq, fsl_ssi_isr, 0, ssi_private->name, |