From: Libin Yang libin.yang@intel.com
In resume from S3, HDAC HDMI codec driver dapm event callback may be operated before HDMI codec driver turns on the display audio power domain because of the contest between display driver and hdmi codec driver.
This patch adds the device_link between kbl_rt5663_rt5514_max98927 machine device(consumer) and hdmi codec device (supplier) to make sure the sequence is always correct.
Signed-off-by: Libin Yang libin.yang@intel.com --- sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-)
diff --git a/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c b/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c index 879f142..e9ec696 100644 --- a/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c +++ b/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c @@ -30,6 +30,7 @@ #include "../../codecs/rt5514.h" #include "../../codecs/rt5663.h" #include "../../codecs/hdac_hdmi.h" +#include "hdac_hdmi_common.h"
#define KBL_REALTEK_CODEC_DAI "rt5663-aif" #define KBL_REALTEK_DMIC_CODEC_DAI "rt5514-aif1" @@ -58,6 +59,7 @@ struct kbl_codec_private { struct snd_soc_jack kabylake_headset; struct list_head hdmi_pcm_list; struct snd_soc_jack kabylake_hdmi[2]; + struct device_link *link; };
enum { @@ -224,7 +226,8 @@ static int kabylake_hdmi_init(struct snd_soc_pcm_runtime *rtd, int device)
list_add_tail(&pcm->head, &ctx->hdmi_pcm_list);
- return 0; + /* Setup a device_link between machine device and HDMI codec device. */ + return hdac_hdmi_add_device_link(rtd->card->dev, dai->dev, &ctx->link); }
static int kabylake_hdmi1_init(struct snd_soc_pcm_runtime *rtd) @@ -672,8 +675,17 @@ static const struct platform_device_id kbl_board_ids[] = { { } };
+static int kabylake_audio_remove(struct platform_device *pdev) +{ + struct snd_soc_card *card = platform_get_drvdata(pdev); + struct kbl_codec_private *ctx = snd_soc_card_get_drvdata(card); + + return hdac_hdmi_del_device_link(&ctx->link); +} + static struct platform_driver kabylake_audio = { .probe = kabylake_audio_probe, + .remove = kabylake_audio_remove, .driver = { .name = "kbl_r5514_5663_max", .pm = &snd_soc_pm_ops,