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ASoC: samsung: i2s: Move clk_get() to platform driver probe() 

Acquire the I2S interface clock in driver probe() callback
as it's a per-device not a per-DAI clock. While at it switch
to the resource managed clk_get().

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Sylwester Nawrocki 2015-01-14 19:42:31 +01:00 committed by Mark Brown
parent af1cf5cf9c
commit 0ec2ba807c
1 changed files with 7 additions and 12 deletions
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19
sound/soc/samsung/i2s.c
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@ -971,18 +971,12 @@ static int samsung_i2s_dai_probe(struct snd_soc_dai *dai)
struct i2s_dai *other = i2s->pri_dai ? : i2s->sec_dai;
int ret;
if (other && other->clk) { /* If this is probe on secondary */
if (is_secondary(i2s)) { /* If this is probe on the secondary DAI */
samsung_asoc_init_dma_data(dai, &other->sec_dai->dma_playback,
NULL);
goto probe_exit;
}
i2s->clk = clk_get(&i2s->pdev->dev, "iis");
if (IS_ERR(i2s->clk)) {
dev_err(&i2s->pdev->dev, "failed to get i2s_clock\n");
return PTR_ERR(i2s->clk);
}
ret = clk_prepare_enable(i2s->clk);
if (ret != 0) {
dev_err(&i2s->pdev->dev, "failed to enable clock: %d\n", ret);
@ -991,10 +985,6 @@ static int samsung_i2s_dai_probe(struct snd_soc_dai *dai)
samsung_asoc_init_dma_data(dai, &i2s->dma_playback, &i2s->dma_capture);
if (other) {
other->clk = i2s->clk;
}
if (i2s->quirks & QUIRK_NEED_RSTCLR)
writel(CON_RSTCLR, i2s->addr + I2SCON);
@ -1032,7 +1022,6 @@ static int samsung_i2s_dai_remove(struct snd_soc_dai *dai)
writel(0, i2s->addr + I2SCON);
clk_disable_unprepare(i2s->clk);
clk_put(i2s->clk);
}
i2s->clk = NULL;
@ -1222,6 +1211,11 @@ static int samsung_i2s_probe(struct platform_device *pdev)
regs_base = res->start;
pri_dai->clk = devm_clk_get(&pdev->dev, "iis");
if (IS_ERR(pri_dai->clk)) {
dev_err(&pdev->dev, "Failed to get iis clock\n");
return PTR_ERR(pri_dai->clk);
}
pri_dai->dma_playback.dma_addr = regs_base + I2STXD;
pri_dai->dma_capture.dma_addr = regs_base + I2SRXD;
pri_dai->dma_playback.ch_name = "tx";
@ -1253,6 +1247,7 @@ static int samsung_i2s_probe(struct platform_device *pdev)
sec_dai->dma_playback.dma_size = 4;
sec_dai->addr = pri_dai->addr;
sec_dai->clk = pri_dai->clk;
sec_dai->quirks = quirks;
sec_dai->idma_playback.dma_addr = idma_addr;
sec_dai->pri_dai = pri_dai;