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Diffstat (limited to 'sound/soc/mxs/mxs-saif.c')
-rw-r--r--sound/soc/mxs/mxs-saif.c72
1 files changed, 36 insertions, 36 deletions
diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c
index d31dc52fa862..54511c5e6a7c 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) {