diff options
| -rw-r--r-- | sound/soc/msm/apq8096-auto.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/sound/soc/msm/apq8096-auto.c b/sound/soc/msm/apq8096-auto.c index 3aaff39d291d..613ee45bdcec 100644 --- a/sound/soc/msm/apq8096-auto.c +++ b/sound/soc/msm/apq8096-auto.c @@ -48,6 +48,8 @@ #define SAMPLING_RATE_192KHZ 192000 #define SAMPLING_RATE_384KHZ 384000 +#define ADSP_STATE_READY_TIMEOUT_MS 10000 + static int hdmi_rx_bit_format = SNDRV_PCM_FORMAT_S16_LE; static int msm_auxpcm_rate = SAMPLING_RATE_8KHZ; static int msm_hdmi_rx_ch = 2; @@ -7678,6 +7680,33 @@ static struct platform_driver apq8096_asoc_machine_dummy_driver = { .remove = dummy_machine_remove, }; +static int apq8096_is_adsp_ready(void) +{ + int adsp_ready = 0; + unsigned long timeout; + + timeout = jiffies + + msecs_to_jiffies(ADSP_STATE_READY_TIMEOUT_MS); + do { + if (!q6core_is_adsp_ready()) { + pr_err_ratelimited("%s: ADSP Audio isn't ready\n", + __func__); + /* + * ADSP will be coming up after subsystem restart and + * it might not be fully up when the control reaches + * here. So, wait for 50msec before checking ADSP state + */ + msleep(50); + } else { + pr_debug("%s: ADSP Audio is ready\n", __func__); + adsp_ready = 1; + break; + } + } while (time_after(timeout, jiffies)); + + return adsp_ready; +} + static int apq8096_adsp_state_callback(struct notifier_block *nb, unsigned long value, void *priv) { @@ -7689,6 +7718,11 @@ static int apq8096_adsp_state_callback(struct notifier_block *nb, if (sndcard) { switch (value) { case SUBSYS_AFTER_POWERUP: + if (!apq8096_is_adsp_ready()) { + pr_err("%s: timed out waiting for ADSP\n", __func__); + return -ETIMEDOUT; + } + pr_debug("%s:SSR complete, set sndcard state as ONLINE\n", __func__); snd_soc_card_change_online_state(sndcard, 1); |