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authorSrinivas Kandagatla <srinivas.kandagatla@linaro.org>2015-05-22 00:52:49 +0300
committerMark Brown <broonie@kernel.org>2015-05-22 15:27:06 +0300
commit9a127cff91e43af807c96ca4ec7c855d382cc23d (patch)
tree7b9b3fd3f181047788da764b6dfd3fff8540a1a4 /sound/soc/qcom/lpass-cpu.c
parent7cc24b169fa176618c654e50cb27640b75fe68d6 (diff)
downloadlinux-9a127cff91e43af807c96ca4ec7c855d382cc23d.tar.xz
ASoC: qcom: support bitclk and osrclk per i2s port
This patch adds support to allow bitclk and osrclk per i2s dai port. on APQ8016 there are 4 i2s ports each one has its own bit clks. Without this patch its not possible to support multiple i2s ports in the lpass driver. Tested-by: Kenneth Westfield <kwestfie@codeaurora.org> Acked-by: Kenneth Westfield <kwestfie@codeaurora.org> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/qcom/lpass-cpu.c')
-rw-r--r--sound/soc/qcom/lpass-cpu.c60
1 files changed, 40 insertions, 20 deletions
diff --git a/sound/soc/qcom/lpass-cpu.c b/sound/soc/qcom/lpass-cpu.c
index fd181330b3ca..96cb4950b2fd 100644
--- a/sound/soc/qcom/lpass-cpu.c
+++ b/sound/soc/qcom/lpass-cpu.c
@@ -33,7 +33,7 @@ static int lpass_cpu_daiops_set_sysclk(struct snd_soc_dai *dai, int clk_id,
struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
int ret;
- ret = clk_set_rate(drvdata->mi2s_osr_clk, freq);
+ ret = clk_set_rate(drvdata->mi2s_osr_clk[dai->driver->id], freq);
if (ret)
dev_err(dai->dev, "%s() error setting mi2s osrclk to %u: %d\n",
__func__, freq, ret);
@@ -47,18 +47,18 @@ static int lpass_cpu_daiops_startup(struct snd_pcm_substream *substream,
struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
int ret;
- ret = clk_prepare_enable(drvdata->mi2s_osr_clk);
+ ret = clk_prepare_enable(drvdata->mi2s_osr_clk[dai->diver->id]);
if (ret) {
dev_err(dai->dev, "%s() error in enabling mi2s osr clk: %d\n",
__func__, ret);
return ret;
}
- ret = clk_prepare_enable(drvdata->mi2s_bit_clk);
+ ret = clk_prepare_enable(drvdata->mi2s_bit_clk[dai->driver->id]);
if (ret) {
dev_err(dai->dev, "%s() error in enabling mi2s bit clk: %d\n",
__func__, ret);
- clk_disable_unprepare(drvdata->mi2s_osr_clk);
+ clk_disable_unprepare(drvdata->mi2s_osr_clk[dai->driver->id]);
return ret;
}
@@ -70,8 +70,8 @@ static void lpass_cpu_daiops_shutdown(struct snd_pcm_substream *substream,
{
struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
- clk_disable_unprepare(drvdata->mi2s_bit_clk);
- clk_disable_unprepare(drvdata->mi2s_osr_clk);
+ clk_disable_unprepare(drvdata->mi2s_bit_clk[dai->driver->id]);
+ clk_disable_unprepare(drvdata->mi2s_osr_clk[dai->driver->id]);
}
static int lpass_cpu_daiops_hw_params(struct snd_pcm_substream *substream,
@@ -146,7 +146,8 @@ static int lpass_cpu_daiops_hw_params(struct snd_pcm_substream *substream,
return ret;
}
- ret = clk_set_rate(drvdata->mi2s_bit_clk, rate * bitwidth * 2);
+ ret = clk_set_rate(drvdata->mi2s_bit_clk[dai->driver->id],
+ rate * bitwidth * 2);
if (ret) {
dev_err(dai->dev, "%s() error setting mi2s bitclk to %u: %d\n",
__func__, rate * bitwidth * 2, ret);
@@ -354,7 +355,8 @@ int asoc_qcom_lpass_cpu_platform_probe(struct platform_device *pdev)
struct lpass_variant *variant;
struct device *dev = &pdev->dev;
const struct of_device_id *match;
- int ret;
+ char clk_name[16];
+ int ret, i, dai_id;
dsp_of_node = of_parse_phandle(pdev->dev.of_node, "qcom,adsp", 0);
if (dsp_of_node) {
@@ -400,18 +402,36 @@ int asoc_qcom_lpass_cpu_platform_probe(struct platform_device *pdev)
if (variant->init)
variant->init(pdev);
- drvdata->mi2s_osr_clk = devm_clk_get(&pdev->dev, "mi2s-osr-clk");
- if (IS_ERR(drvdata->mi2s_osr_clk)) {
- dev_err(&pdev->dev, "%s() error getting mi2s-osr-clk: %ld\n",
- __func__, PTR_ERR(drvdata->mi2s_osr_clk));
- return PTR_ERR(drvdata->mi2s_osr_clk);
- }
-
- drvdata->mi2s_bit_clk = devm_clk_get(&pdev->dev, "mi2s-bit-clk");
- if (IS_ERR(drvdata->mi2s_bit_clk)) {
- dev_err(&pdev->dev, "%s() error getting mi2s-bit-clk: %ld\n",
- __func__, PTR_ERR(drvdata->mi2s_bit_clk));
- return PTR_ERR(drvdata->mi2s_bit_clk);
+ for (i = 0; i < variant->num_dai; i++) {
+ dai_id = variant->dai_driver[i].id;
+ if (variant->num_dai > 1)
+ sprintf(clk_name, "mi2s-osr-clk%d", i);
+ else
+ sprintf(clk_name, "mi2s-osr-clk");
+
+ drvdata->mi2s_osr_clk[dai_id] = devm_clk_get(&pdev->dev,
+ clk_name);
+ if (IS_ERR(drvdata->mi2s_osr_clk[dai_id])) {
+ dev_err(&pdev->dev,
+ "%s() error getting mi2s-osr-clk: %ld\n",
+ __func__,
+ PTR_ERR(drvdata->mi2s_osr_clk[dai_id]));
+ return PTR_ERR(drvdata->mi2s_osr_clk[dai_id]);
+ }
+
+ if (variant->num_dai > 1)
+ sprintf(clk_name, "mi2s-bit-clk%d", i);
+ else
+ sprintf(clk_name, "mi2s-bit-clk");
+
+ drvdata->mi2s_bit_clk[dai_id] = devm_clk_get(&pdev->dev,
+ clk_name);
+ if (IS_ERR(drvdata->mi2s_bit_clk[dai_id])) {
+ dev_err(&pdev->dev,
+ "%s() error getting mi2s-bit-clk: %ld\n",
+ __func__, PTR_ERR(drvdata->mi2s_bit_clk[i]));
+ return PTR_ERR(drvdata->mi2s_bit_clk[dai_id]);
+ }
}
drvdata->ahbix_clk = devm_clk_get(&pdev->dev, "ahbix-clk");