On 5/29/18 2:43 AM, mac.chiang@intel.com wrote:

From: Mac Chiang mac.chiang@intel.com

On APL, commit fd0f237572ad ("ASoC: Intel: bxt: Move codec sysclk config to codec_init function") fixed an issue related to jack detection.

The MCLK for DA7219 does not change in this platform, but is currently being configured everytime as part of the platform_clock event handler for DAPM. The upshot of this is that we have unnecessary calls to this function, and it also means that if a stream hasn't yet been started, DA7219 driver does not have the correct MCLK rates programmed and so the HP detection feature does not operate as expected.

The same fix is needed on KBL.

This patch rectifies this issue by moving the sysclk call to codec_init function so it's only called once at initialisation.

Signed-off-by: Mac Chiang mac.chiang@intel.com

You need to CC: maintainers if you want this patch applied. Also the notes/changelog should go below the --- marker.

Notes(changelog): v2: - correct the MCLK to 24.576M v3: - described the comments clearly

---

notes go here.

sound/soc/intel/boards/kbl_da7219_max98357a.c | 17 +++++++++-------- 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/sound/soc/intel/boards/kbl_da7219_max98357a.c b/sound/soc/intel/boards/kbl_da7219_max98357a.c index c332a32..ad3029d 100644 --- a/sound/soc/intel/boards/kbl_da7219_max98357a.c +++ b/sound/soc/intel/boards/kbl_da7219_max98357a.c @@ -66,14 +66,6 @@ static int platform_clock_control(struct snd_soc_dapm_widget *w, return -EIO; }

• /* Configure sysclk for codec */
• ret = snd_soc_dai_set_sysclk(codec_dai, DA7219_CLKSRC_MCLK, 24576000,

• 		     SND_SOC_CLOCK_IN);
  

• if (ret) {

• dev_err(card->dev, "can't set codec sysclk configuration\n");
  

• return ret;
  

• }
• if (SND_SOC_DAPM_EVENT_OFF(event)) { ret = snd_soc_dai_set_pll(codec_dai, 0, DA7219_SYSCLK_MCLK, 0, 0);

@@ -170,9 +162,18 @@ static int kabylake_da7219_codec_init(struct snd_soc_pcm_runtime *rtd) { struct kbl_codec_private *ctx = snd_soc_card_get_drvdata(rtd->card); struct snd_soc_component *component = rtd->codec_dai->component;

• struct snd_soc_dai *codec_dai = rtd->codec_dai; struct snd_soc_jack *jack; int ret;

• /* Configure sysclk for codec */

• ret = snd_soc_dai_set_sysclk(codec_dai, DA7219_CLKSRC_MCLK, 24576000,

• 				SND_SOC_CLOCK_IN);
  

• if (ret) {

• dev_err(rtd->dev, "can't set codec sysclk configuration\n");
  

• return ret;
  

• }

• /*

  • Headset buttons map to the google Reference headset.
  • These can be configured by userspace.