diff options
Diffstat (limited to 'sound/soc/fsl/fsl_ssi.c')
-rw-r--r-- | sound/soc/fsl/fsl_ssi.c | 47 |
1 files changed, 19 insertions, 28 deletions
diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c index 2595611e8a6d..e8bb8eef1d16 100644 --- a/sound/soc/fsl/fsl_ssi.c +++ b/sound/soc/fsl/fsl_ssi.c @@ -603,17 +603,20 @@ static int fsl_ssi_set_bclk(struct snd_pcm_substream *substream, factor = (div2 + 1) * (7 * psr + 1) * 2; for (i = 0; i < 255; i++) { - /* The bclk rate must be smaller than 1/5 sysclk rate */ - if (factor * (i + 1) < 5) - continue; - - tmprate = freq * factor * (i + 2); + tmprate = freq * factor * (i + 1); if (baudclk_is_used) clkrate = clk_get_rate(ssi_private->baudclk); else clkrate = clk_round_rate(ssi_private->baudclk, tmprate); + /* + * Hardware limitation: The bclk rate must be + * never greater than 1/5 IPG clock rate + */ + if (clkrate * 5 > clk_get_rate(ssi_private->clk)) + continue; + clkrate /= factor; afreq = clkrate / (i + 1); @@ -1224,7 +1227,7 @@ static int fsl_ssi_imx_probe(struct platform_device *pdev, ssi_private->dma_params_tx.addr = ssi_private->ssi_phys + CCSR_SSI_STX0; ssi_private->dma_params_rx.addr = ssi_private->ssi_phys + CCSR_SSI_SRX0; - ret = !of_property_read_u32_array(np, "dmas", dmas, 4); + ret = of_property_read_u32_array(np, "dmas", dmas, 4); if (ssi_private->use_dma && !ret && dmas[2] == IMX_DMATYPE_SSI_DUAL) { ssi_private->use_dual_fifo = true; /* When using dual fifo mode, we need to keep watermark @@ -1285,7 +1288,7 @@ static int fsl_ssi_probe(struct platform_device *pdev) const struct of_device_id *of_id; const char *p, *sprop; const uint32_t *iprop; - struct resource res; + struct resource *res; void __iomem *iomem; char name[64]; @@ -1332,19 +1335,11 @@ static int fsl_ssi_probe(struct platform_device *pdev) } ssi_private->cpu_dai_drv.name = dev_name(&pdev->dev); - /* Get the addresses and IRQ */ - ret = of_address_to_resource(np, 0, &res); - if (ret) { - dev_err(&pdev->dev, "could not determine device resources\n"); - return ret; - } - ssi_private->ssi_phys = res.start; - - iomem = devm_ioremap(&pdev->dev, res.start, resource_size(&res)); - if (!iomem) { - dev_err(&pdev->dev, "could not map device resources\n"); - return -ENOMEM; - } + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + iomem = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(iomem)) + return PTR_ERR(iomem); + ssi_private->ssi_phys = res->start; ret = of_property_match_string(np, "clock-names", "ipg"); if (ret < 0) { @@ -1390,8 +1385,8 @@ static int fsl_ssi_probe(struct platform_device *pdev) return ret; } - ret = snd_soc_register_component(&pdev->dev, &fsl_ssi_component, - &ssi_private->cpu_dai_drv, 1); + ret = devm_snd_soc_register_component(&pdev->dev, &fsl_ssi_component, + &ssi_private->cpu_dai_drv, 1); if (ret) { dev_err(&pdev->dev, "failed to register DAI: %d\n", ret); goto error_asoc_register; @@ -1404,13 +1399,13 @@ static int fsl_ssi_probe(struct platform_device *pdev) if (ret < 0) { dev_err(&pdev->dev, "could not claim irq %u\n", ssi_private->irq); - goto error_irq; + goto error_asoc_register; } } ret = fsl_ssi_debugfs_create(&ssi_private->dbg_stats, &pdev->dev); if (ret) - goto error_irq; + goto error_asoc_register; /* * If codec-handle property is missing from SSI node, we assume @@ -1451,9 +1446,6 @@ done: error_sound_card: fsl_ssi_debugfs_remove(&ssi_private->dbg_stats); -error_irq: - snd_soc_unregister_component(&pdev->dev); - error_asoc_register: if (ssi_private->soc->imx) fsl_ssi_imx_clean(pdev, ssi_private); @@ -1469,7 +1461,6 @@ static int fsl_ssi_remove(struct platform_device *pdev) if (ssi_private->pdev) platform_device_unregister(ssi_private->pdev); - snd_soc_unregister_component(&pdev->dev); if (ssi_private->soc->imx) fsl_ssi_imx_clean(pdev, ssi_private); |