diff --git a/soc/swr-mstr-ctrl.c b/soc/swr-mstr-ctrl.c index a9d755b89442..25f0353ba0a6 100644 --- a/soc/swr-mstr-ctrl.c +++ b/soc/swr-mstr-ctrl.c @@ -27,6 +27,7 @@ #include #include #include +#include #include "swrm_registers.h" #include "swr-mstr-ctrl.h" #include "swrm_port_config.h" @@ -1423,6 +1424,33 @@ static int swrm_master_init(struct swr_mstr_ctrl *swrm) return ret; } +static int swrm_event_notify(struct notifier_block *self, + unsigned long action, void *data) +{ + struct swr_mstr_ctrl *swrm = container_of(self, struct swr_mstr_ctrl, + event_notifier); + if (!swrm || !swrm->pdev) { + pr_err("%s: swrm or pdev is NULL\n", __func__); + return -EINVAL; + } + if (action != MSM_AUD_DC_EVENT) { + dev_err(&swrm->pdev->dev, "%s: invalid event type: %lu\n", + __func__, action); + return -EINVAL; + } + + schedule_work(&(swrm->dc_presence_work)); + + return 0; +} + +static void swrm_notify_work_fn(struct work_struct *work) +{ + struct swr_mstr_ctrl *swrm = container_of(work, struct swr_mstr_ctrl, + dc_presence_work); + swrm_wcd_notify(swrm->pdev, SWR_DEVICE_DOWN, NULL); +} + static int swrm_probe(struct platform_device *pdev) { struct swr_mstr_ctrl *swrm; @@ -1671,6 +1699,10 @@ static int swrm_probe(struct platform_device *pdev) pm_runtime_enable(&pdev->dev); pm_runtime_mark_last_busy(&pdev->dev); + INIT_WORK(&swrm->dc_presence_work, swrm_notify_work_fn); + swrm->event_notifier.notifier_call = swrm_event_notify; + msm_aud_evt_register_client(&swrm->event_notifier); + return 0; err_mstr_fail: if (swrm->reg_irq) @@ -1700,6 +1732,7 @@ static int swrm_remove(struct platform_device *pdev) pm_runtime_disable(&pdev->dev); pm_runtime_set_suspended(&pdev->dev); swr_unregister_master(&swrm->master); + msm_aud_evt_unregister_client(&swrm->event_notifier); mutex_destroy(&swrm->mlock); mutex_destroy(&swrm->reslock); mutex_destroy(&swrm->force_down_lock); diff --git a/soc/swr-mstr-ctrl.h b/soc/swr-mstr-ctrl.h index 59c7e76c94b3..9d8fd94b2028 100644 --- a/soc/swr-mstr-ctrl.h +++ b/soc/swr-mstr-ctrl.h @@ -139,6 +139,8 @@ struct swr_mstr_ctrl { u8 num_cfg_devs; struct mutex force_down_lock; int force_down_state; + struct notifier_block event_notifier; + struct work_struct dc_presence_work; u8 num_ports; struct swrm_port_type port_mapping[SWR_MSTR_PORT_LEN][SWR_MAX_CH_PER_PORT];