diff options
Diffstat (limited to 'sound/soc/mxs/mxs-saif.c')
| -rw-r--r-- | sound/soc/mxs/mxs-saif.c | 72 |
1 files changed, 36 insertions, 36 deletions
diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c index d31dc52fa86..54511c5e6a7 100644 --- a/sound/soc/mxs/mxs-saif.c +++ b/sound/soc/mxs/mxs-saif.c @@ -24,10 +24,9 @@ #include <linux/slab.h> #include <linux/dma-mapping.h> #include <linux/clk.h> +#include <linux/clk-provider.h> #include <linux/delay.h> #include <linux/time.h> -#include <linux/fsl/mxs-dma.h> -#include <linux/pinctrl/consumer.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/pcm_params.h> @@ -605,8 +604,6 @@ static int mxs_saif_dai_probe(struct snd_soc_dai *dai) struct mxs_saif *saif = dev_get_drvdata(dai->dev); snd_soc_dai_set_drvdata(dai, saif); - dai->playback_dma_data = &saif->dma_param; - dai->capture_dma_data = &saif->dma_param; return 0; } @@ -662,12 +659,38 @@ static irqreturn_t mxs_saif_irq(int irq, void *dev_id) return IRQ_HANDLED; } +static int mxs_saif_mclk_init(struct platform_device *pdev) +{ + struct mxs_saif *saif = platform_get_drvdata(pdev); + struct device_node *np = pdev->dev.of_node; + struct clk *clk; + int ret; + + clk = clk_register_divider(&pdev->dev, "mxs_saif_mclk", + __clk_get_name(saif->clk), 0, + saif->base + SAIF_CTRL, + BP_SAIF_CTRL_BITCLK_MULT_RATE, 3, + 0, NULL); + if (IS_ERR(clk)) { + ret = PTR_ERR(clk); + if (ret == -EEXIST) + return 0; + dev_err(&pdev->dev, "failed to register mclk: %d\n", ret); + return PTR_ERR(clk); + } + + ret = of_clk_add_provider(np, of_clk_src_simple_get, clk); + if (ret) + return ret; + + return 0; +} + static int mxs_saif_probe(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; - struct resource *iores, *dmares; + struct resource *iores; struct mxs_saif *saif; - struct pinctrl *pinctrl; int ret = 0; struct device_node *master; @@ -707,12 +730,6 @@ static int mxs_saif_probe(struct platform_device *pdev) mxs_saif[saif->id] = saif; - pinctrl = devm_pinctrl_get_select_default(&pdev->dev); - if (IS_ERR(pinctrl)) { - ret = PTR_ERR(pinctrl); - return ret; - } - saif->clk = devm_clk_get(&pdev->dev, NULL); if (IS_ERR(saif->clk)) { ret = PTR_ERR(saif->clk); @@ -727,22 +744,6 @@ static int mxs_saif_probe(struct platform_device *pdev) if (IS_ERR(saif->base)) return PTR_ERR(saif->base); - dmares = platform_get_resource(pdev, IORESOURCE_DMA, 0); - if (!dmares) { - /* - * TODO: This is a temporary solution and should be changed - * to use generic DMA binding later when the helplers get in. - */ - ret = of_property_read_u32(np, "fsl,saif-dma-channel", - &saif->dma_param.chan_num); - if (ret) { - dev_err(&pdev->dev, "failed to get dma channel\n"); - return ret; - } - } else { - saif->dma_param.chan_num = dmares->start; - } - saif->irq = platform_get_irq(pdev, 0); if (saif->irq < 0) { ret = saif->irq; @@ -759,16 +760,15 @@ static int mxs_saif_probe(struct platform_device *pdev) return ret; } - saif->dma_param.dma_data.chan_irq = platform_get_irq(pdev, 1); - if (saif->dma_param.dma_data.chan_irq < 0) { - ret = saif->dma_param.dma_data.chan_irq; - dev_err(&pdev->dev, "failed to get dma irq resource: %d\n", - ret); - return ret; - } - platform_set_drvdata(pdev, saif); + /* We only support saif0 being tx and clock master */ + if (saif->id == 0) { + ret = mxs_saif_mclk_init(pdev); + if (ret) + dev_warn(&pdev->dev, "failed to init clocks\n"); + } + ret = snd_soc_register_component(&pdev->dev, &mxs_saif_component, &mxs_saif_dai, 1); if (ret) { |