Merge tag 'v4.14-rc2' into patchwork

[android-x86/kernel.git] / drivers / media / cec / cec-adap.c

diff --git a/drivers/media/cec/cec-adap.c b/drivers/media/cec/cec-adap.c
index eed6c39..98f88c4 100644 (file)
--- a/drivers/media/cec/cec-adap.c
+++ b/drivers/media/cec/cec-adap.c
@@ -86,7 +86,7 @@ void cec_queue_event_fh(struct cec_fh *fh,
                        const struct cec_event *new_ev, u64 ts)
 {
        static const u8 max_events[CEC_NUM_EVENTS] = {
-               1, 1, 64, 64,
+               1, 1, 64, 64, 8, 8,
        };
        struct cec_event_entry *entry;
        unsigned int ev_idx = new_ev->event - 1;
@@ -170,6 +170,22 @@ void cec_queue_pin_cec_event(struct cec_adapter *adap, bool is_high, ktime_t ts)
 }
 EXPORT_SYMBOL_GPL(cec_queue_pin_cec_event);
 
+/* Notify userspace that the HPD pin changed state at the given time. */
+void cec_queue_pin_hpd_event(struct cec_adapter *adap, bool is_high, ktime_t ts)
+{
+       struct cec_event ev = {
+               .event = is_high ? CEC_EVENT_PIN_HPD_HIGH :
+                                  CEC_EVENT_PIN_HPD_LOW,
+       };
+       struct cec_fh *fh;
+
+       mutex_lock(&adap->devnode.lock);
+       list_for_each_entry(fh, &adap->devnode.fhs, list)
+               cec_queue_event_fh(fh, &ev, ktime_to_ns(ts));
+       mutex_unlock(&adap->devnode.lock);
+}
+EXPORT_SYMBOL_GPL(cec_queue_pin_hpd_event);
+
 /*
  * Queue a new message for this filehandle.
  *
@@ -1797,12 +1813,19 @@ static int cec_receive_notify(struct cec_adapter *adap, struct cec_msg *msg,
         */
        switch (msg->msg[1]) {
        case CEC_MSG_GET_CEC_VERSION:
-       case CEC_MSG_GIVE_DEVICE_VENDOR_ID:
        case CEC_MSG_ABORT:
        case CEC_MSG_GIVE_DEVICE_POWER_STATUS:
-       case CEC_MSG_GIVE_PHYSICAL_ADDR:
        case CEC_MSG_GIVE_OSD_NAME:
+               /*
+                * These messages reply with a directed message, so ignore if
+                * the initiator is Unregistered.
+                */
+               if (!adap->passthrough && from_unregistered)
+                       return 0;
+               /* Fall through */
+       case CEC_MSG_GIVE_DEVICE_VENDOR_ID:
        case CEC_MSG_GIVE_FEATURES:
+       case CEC_MSG_GIVE_PHYSICAL_ADDR:
                /*
                 * Skip processing these messages if the passthrough mode
                 * is on.
@@ -1810,7 +1833,7 @@ static int cec_receive_notify(struct cec_adapter *adap, struct cec_msg *msg,
                if (adap->passthrough)
                        goto skip_processing;
                /* Ignore if addressing is wrong */
-               if (is_broadcast || from_unregistered)
+               if (is_broadcast)
                        return 0;
                break;