[PATCH 6/8] ASoC: atmel: support CCF based clks

From: Bo Shen
Date: Mon Mar 17 2014 - 05:48:45 EST


From: Boris BREZILLON <b.brezillon@xxxxxxxxxxx>

Provide dev to clk_get function if we're using CCF based clks.
CCF based prog clks support automatic parent selection when asking for a
specific rate: remove the clk32k clk retrieval if we're using these clks.

Signed-off-by: Boris BREZILLON <b.brezillon@xxxxxxxxxxx>
[voice.shen@xxxxxxxxx: switch to devm manage function]
Signed-off-by: Bo Shen <voice.shen@xxxxxxxxx>

Signed-off-by: Bo Shen <voice.shen@xxxxxxxxx>
---

sound/soc/atmel/atmel_wm8904.c | 25 +++++++++++++------------
1 file changed, 13 insertions(+), 12 deletions(-)

diff --git a/sound/soc/atmel/atmel_wm8904.c b/sound/soc/atmel/atmel_wm8904.c
index b4e3690..a797d33 100644
--- a/sound/soc/atmel/atmel_wm8904.c
+++ b/sound/soc/atmel/atmel_wm8904.c
@@ -170,25 +170,26 @@ static int atmel_asoc_wm8904_probe(struct platform_device *pdev)
return ret;
}

- mclk = clk_get(NULL, "pck0");
+ mclk = devm_clk_get(&pdev->dev, "pck0");
if (IS_ERR(mclk)) {
dev_err(&pdev->dev, "failed to get pck0\n");
ret = PTR_ERR(mclk);
goto err_set_audio;
}

- clk_src = clk_get(NULL, "clk32k");
- if (IS_ERR(clk_src)) {
- dev_err(&pdev->dev, "failed to get clk32k\n");
- ret = PTR_ERR(clk_src);
- goto err_set_audio;
- }
+ if (!IS_ENABLED(CONFIG_COMMON_CLK)) {
+ clk_src = devm_clk_get(&pdev->dev, "clk32k");
+ if (IS_ERR(clk_src)) {
+ dev_err(&pdev->dev, "failed to get clk32k\n");
+ ret = PTR_ERR(clk_src);
+ goto err_set_audio;
+ }

- ret = clk_set_parent(mclk, clk_src);
- clk_put(clk_src);
- if (ret != 0) {
- dev_err(&pdev->dev, "failed to set MCLK parent\n");
- goto err_set_audio;
+ ret = clk_set_parent(mclk, clk_src);
+ if (ret != 0) {
+ dev_err(&pdev->dev, "failed to set MCLK parent\n");
+ goto err_set_audio;
+ }
}

dev_info(&pdev->dev, "setting pck0 to %dHz\n", MCLK_RATE);
--
1.8.5.2

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