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@xxxxxxxxxxx>
---
sound/soc/samsung/i2s.c | 19 +++++++------------
1 file changed, 7 insertions(+), 12 deletions(-)
diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c
index 6c7f956..7f967b2 100644
--- a/sound/soc/samsung/i2s.c
+++ b/sound/soc/samsung/i2s.c
@@ -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;
--
1.7.9.5
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
