Some audio servers like to monitor a jack device (perhaps combined with
EDID, for audio-presence info) to determine DP/HDMI audio presence.
Signed-off-by: Brian Norris <briannorris@xxxxxxxxxxxx>
---
drivers/gpu/drm/rockchip/cdn-dp-core.c | 28 ++++++++++++++++++++++++++
drivers/gpu/drm/rockchip/cdn-dp-core.h | 4 ++++
2 files changed, 32 insertions(+)
diff --git a/drivers/gpu/drm/rockchip/cdn-dp-core.c b/drivers/gpu/drm/rockchip/cdn-dp-core.c
index 16497c31d9f9..edd6a1fc46cd 100644
--- a/drivers/gpu/drm/rockchip/cdn-dp-core.c
+++ b/drivers/gpu/drm/rockchip/cdn-dp-core.c
@@ -586,6 +586,13 @@ static bool cdn_dp_check_link_status(struct cdn_dp_device *dp)
return drm_dp_channel_eq_ok(link_status, min(port->lanes, sink_lanes));
}
+static void cdn_dp_audio_handle_plugged_change(struct cdn_dp_device *dp,
+ bool plugged)
+{
+ if (dp->codec_dev)
+ dp->plugged_cb(dp->codec_dev, plugged);
+}
+
static void cdn_dp_encoder_enable(struct drm_encoder *encoder)
{
struct cdn_dp_device *dp = encoder_to_dp(encoder);
@@ -641,6 +648,9 @@ static void cdn_dp_encoder_enable(struct drm_encoder *encoder)
DRM_DEV_ERROR(dp->dev, "Failed to valid video %d\n", ret);
goto out;
}
+
+ cdn_dp_audio_handle_plugged_change(dp, true);
+
out:
mutex_unlock(&dp->lock);
}
@@ -651,6 +661,8 @@ static void cdn_dp_encoder_disable(struct drm_encoder *encoder)
int ret;
mutex_lock(&dp->lock);
+ cdn_dp_audio_handle_plugged_change(dp, false);
+
if (dp->active) {
ret = cdn_dp_disable(dp);
if (ret) {
@@ -846,11 +858,27 @@ static int cdn_dp_audio_get_eld(struct device *dev, void *data,
return 0;
}
+static int cdn_dp_audio_hook_plugged_cb(struct device *dev, void *data,
+ hdmi_codec_plugged_cb fn,
+ struct device *codec_dev)
+{
+ struct cdn_dp_device *dp = dev_get_drvdata(dev);
+
+ mutex_lock(&dp->lock);
+ dp->plugged_cb = fn;
+ dp->codec_dev = codec_dev;
+ cdn_dp_audio_handle_plugged_change(dp, dp->connected);
+ mutex_unlock(&dp->lock);
+
+ return 0;
+}
+
static const struct hdmi_codec_ops audio_codec_ops = {
.hw_params = cdn_dp_audio_hw_params,
.audio_shutdown = cdn_dp_audio_shutdown,
.mute_stream = cdn_dp_audio_mute_stream,
.get_eld = cdn_dp_audio_get_eld,
+ .hook_plugged_cb = cdn_dp_audio_hook_plugged_cb,
.no_capture_mute = 1,
};
diff --git a/drivers/gpu/drm/rockchip/cdn-dp-core.h b/drivers/gpu/drm/rockchip/cdn-dp-core.h
index 81ac9b658a70..d808a9de45ed 100644
--- a/drivers/gpu/drm/rockchip/cdn-dp-core.h
+++ b/drivers/gpu/drm/rockchip/cdn-dp-core.h
@@ -10,6 +10,7 @@
#include <drm/drm_dp_helper.h>
#include <drm/drm_panel.h>
#include <drm/drm_probe_helper.h>
+#include <sound/hdmi-codec.h>
#include "rockchip_drm_drv.h"
@@ -101,5 +102,8 @@ struct cdn_dp_device {
u8 dpcd[DP_RECEIVER_CAP_SIZE];
bool sink_has_audio;
+
+ hdmi_codec_plugged_cb plugged_cb;
+ struct device *codec_dev;
};
#endif /* _CDN_DP_CORE_H */
--
2.34.1.703.g22d0c6ccf7-goog
