From: Akshu Agrawal akshu.agrawal@amd.com
Non-dts based systems can use ACPI DSDT to pass on the mclk to da7219. This enables da7219 mclk to be linked to system clock. Enable/Disable of the mclk is already handled in the codec so platform drivers don't have to explicitly do handling of mclk.
Signed-off-by: Akshu Agrawal akshu.agrawal@amd.com Signed-off-by: Curtis Malainey cujomalainey@chromium.org Cc: Karthik Ramasubramanian kramasub@google.com --- include/sound/da7219.h | 2 ++ sound/soc/codecs/da7219.c | 8 +++++++- 2 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/include/sound/da7219.h b/include/sound/da7219.h index dde4542b084f3..4cf4c52be3f7f 100644 --- a/include/sound/da7219.h +++ b/include/sound/da7219.h @@ -40,6 +40,8 @@ struct da7219_pdata {
const char *dai_clk_names[DA7219_DAI_NUM_CLKS];
+ const char *mclk_name; + /* Mic */ enum da7219_micbias_voltage micbias_lvl; enum da7219_mic_amp_in_sel mic_amp_in_sel; diff --git a/sound/soc/codecs/da7219.c b/sound/soc/codecs/da7219.c index 311ea7918b312..800f61d993043 100644 --- a/sound/soc/codecs/da7219.c +++ b/sound/soc/codecs/da7219.c @@ -1782,6 +1782,8 @@ static struct da7219_pdata *da7219_fw_to_pdata(struct device *dev) pdata->dai_clk_names[DA7219_DAI_WCLK_IDX], pdata->dai_clk_names[DA7219_DAI_BCLK_IDX]);
+ device_property_read_string(dev, "dlg,mclk-name", &pdata->mclk_name); + if (device_property_read_u32(dev, "dlg,micbias-lvl", &of_val32) >= 0) pdata->micbias_lvl = da7219_fw_micbias_lvl(dev, of_val32); else @@ -2521,7 +2523,11 @@ static int da7219_probe(struct snd_soc_component *component) da7219_handle_pdata(component);
/* Check if MCLK provided */ - da7219->mclk = clk_get(component->dev, "mclk"); + if (da7219->pdata->mclk_name) + da7219->mclk = clk_get(NULL, da7219->pdata->mclk_name); + if (!da7219->mclk) + da7219->mclk = clk_get(component->dev, "mclk"); + if (IS_ERR(da7219->mclk)) { if (PTR_ERR(da7219->mclk) != -ENOENT) { ret = PTR_ERR(da7219->mclk);