ASoC: jz4740-i2s: Refactor DMA channel setup

It's simpler to set up the playback and capture DMA settings
at driver probe time instead of during DAI probing.

Signed-off-by: Aidan MacDonald <aidanmacdonald.0x0@gmail.com>
Acked-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20220706211330.120198-3-aidanmacdonald.0x0@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/jz4740/jz4740-i2s.c b/sound/soc/jz4740/jz4740-i2s.c
index 298ff0a..ecd8df7 100644 (file)
--- a/sound/soc/jz4740/jz4740-i2s.c
+++ b/sound/soc/jz4740/jz4740-i2s.c
@@ -95,7 +95,6 @@ struct i2s_soc_info {
 struct jz4740_i2s {
        struct resource *mem;
        void __iomem *base;
-       dma_addr_t phys_base;
 
        struct clk *clk_aic;
        struct clk *clk_i2s;
@@ -370,21 +369,6 @@ static int jz4740_i2s_resume(struct snd_soc_component *component)
        return 0;
 }
 
-static void jz4740_i2s_init_pcm_config(struct jz4740_i2s *i2s)
-{
-       struct snd_dmaengine_dai_dma_data *dma_data;
-
-       /* Playback */
-       dma_data = &i2s->playback_dma_data;
-       dma_data->maxburst = 16;
-       dma_data->addr = i2s->phys_base + JZ_REG_AIC_FIFO;
-
-       /* Capture */
-       dma_data = &i2s->capture_dma_data;
-       dma_data->maxburst = 16;
-       dma_data->addr = i2s->phys_base + JZ_REG_AIC_FIFO;
-}
-
 static int jz4740_i2s_dai_probe(struct snd_soc_dai *dai)
 {
        struct jz4740_i2s *i2s = snd_soc_dai_get_drvdata(dai);
@@ -395,7 +379,6 @@ static int jz4740_i2s_dai_probe(struct snd_soc_dai *dai)
        if (ret)
                return ret;
 
-       jz4740_i2s_init_pcm_config(i2s);
        snd_soc_dai_init_dma_data(dai, &i2s->playback_dma_data,
                &i2s->capture_dma_data);
 
@@ -529,7 +512,11 @@ static int jz4740_i2s_dev_probe(struct platform_device *pdev)
        if (IS_ERR(i2s->base))
                return PTR_ERR(i2s->base);
 
-       i2s->phys_base = mem->start;
+       i2s->playback_dma_data.maxburst = 16;
+       i2s->playback_dma_data.addr = mem->start + JZ_REG_AIC_FIFO;
+
+       i2s->capture_dma_data.maxburst = 16;
+       i2s->capture_dma_data.addr = mem->start + JZ_REG_AIC_FIFO;
 
        i2s->clk_aic = devm_clk_get(dev, "aic");
        if (IS_ERR(i2s->clk_aic))