under low power state a SoundWire Wake IRQ could trigger MBHC interrupts so make sure that codec is not in suspended state when this happens.
Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org --- sound/soc/codecs/wcd-mbhc-v2.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+)
diff --git a/sound/soc/codecs/wcd-mbhc-v2.c b/sound/soc/codecs/wcd-mbhc-v2.c index 7488a150a138..c53c2ef33e1a 100644 --- a/sound/soc/codecs/wcd-mbhc-v2.c +++ b/sound/soc/codecs/wcd-mbhc-v2.c @@ -5,6 +5,7 @@ #include <linux/init.h> #include <linux/slab.h> #include <linux/device.h> +#include <linux/pm_runtime.h> #include <linux/printk.h> #include <linux/delay.h> #include <linux/kernel.h> @@ -711,6 +712,16 @@ static irqreturn_t wcd_mbhc_hphr_ocp_irq(int irq, void *data) static int wcd_mbhc_initialise(struct wcd_mbhc *mbhc) { struct snd_soc_component *component = mbhc->component; + int ret; + + ret = pm_runtime_get_sync(component->dev); + if (ret < 0 && ret != -EACCES) { + dev_err_ratelimited(component->dev, + "pm_runtime_get_sync failed in %s, ret %d\n", + __func__, ret); + pm_runtime_put_noidle(component->dev); + return ret; + }
mutex_lock(&mbhc->lock);
@@ -751,6 +762,9 @@ static int wcd_mbhc_initialise(struct wcd_mbhc *mbhc)
mutex_unlock(&mbhc->lock);
+ pm_runtime_mark_last_busy(component->dev); + pm_runtime_put_autosuspend(component->dev); + return 0; }
@@ -1078,10 +1092,19 @@ static void wcd_correct_swch_plug(struct work_struct *work) int output_mv, cross_conn, hs_threshold, try = 0, micbias_mv; bool is_spl_hs = false; bool is_pa_on; + int ret;
mbhc = container_of(work, struct wcd_mbhc, correct_plug_swch); component = mbhc->component;
+ ret = pm_runtime_get_sync(component->dev); + if (ret < 0 && ret != -EACCES) { + dev_err_ratelimited(component->dev, + "pm_runtime_get_sync failed in %s, ret %d\n", + __func__, ret); + pm_runtime_put_noidle(component->dev); + return; + } micbias_mv = wcd_mbhc_get_micbias(mbhc); hs_threshold = wcd_mbhc_adc_get_hs_thres(mbhc);
@@ -1232,6 +1255,9 @@ static void wcd_correct_swch_plug(struct work_struct *work)
if (mbhc->mbhc_cb->hph_pull_down_ctrl) mbhc->mbhc_cb->hph_pull_down_ctrl(component, true); + + pm_runtime_mark_last_busy(component->dev); + pm_runtime_put_autosuspend(component->dev); }
static irqreturn_t wcd_mbhc_adc_hs_rem_irq(int irq, void *data)