diff options
| author | Abhinav Kumar <abhinavk@codeaurora.org> | 2020-09-12 23:49:30 +0300 |
|---|---|---|
| committer | Rob Clark <robdclark@chromium.org> | 2020-09-15 20:54:34 +0300 |
| commit | a1f5bda99b7bee46b01f6a9f256671c8efef0ec9 (patch) | |
| tree | ae4103e7b3f476785b351749a11214f5fa4e9ca5 /drivers/gpu/drm/msm/dp/dp_display.c | |
| parent | d13e36d7d2227e6fe91bc063d473f97d43f9442f (diff) | |
| download | linux-a1f5bda99b7bee46b01f6a9f256671c8efef0ec9.tar.xz | |
drm/msm/dp: add hook_plugged_cb hdmi-codec op for MSM DP driver
Add the hook_plugged_cb op for the MSM DP driver to signal connect
and disconnect events to the hdmi-codec driver which in-turn shall
notify the audio subsystem to start a new or teardown an existing
session.
Changes in v2: none
Changes in v3: none
Changes in v4: rebase on top of latest patchset of dependency
Changes in v5: rebase on top of latest patchset of dependency
Changes in v6: none
Signed-off-by: Abhinav Kumar <abhinavk@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Diffstat (limited to 'drivers/gpu/drm/msm/dp/dp_display.c')
| -rw-r--r-- | drivers/gpu/drm/msm/dp/dp_display.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c index dd2d9433f4d7..c30ffe778ffe 100644 --- a/drivers/gpu/drm/msm/dp/dp_display.c +++ b/drivers/gpu/drm/msm/dp/dp_display.c @@ -780,6 +780,13 @@ static int dp_display_prepare(struct msm_dp *dp) return 0; } +static void dp_display_handle_plugged_change(struct msm_dp *dp_display, + bool plugged) +{ + if (dp_display->plugged_cb && dp_display->codec_dev) + dp_display->plugged_cb(dp_display->codec_dev, plugged); +} + static int dp_display_enable(struct dp_display_private *dp, u32 data) { int rc = 0; @@ -812,6 +819,8 @@ static int dp_display_post_enable(struct msm_dp *dp_display) dp->audio->lane_count = dp->link->link_params.num_lanes; } + /* signal the connect event late to synchronize video and display */ + dp_display_handle_plugged_change(dp_display, true); return 0; } @@ -834,6 +843,19 @@ static int dp_display_unprepare(struct msm_dp *dp) return 0; } +int dp_display_set_plugged_cb(struct msm_dp *dp_display, + hdmi_codec_plugged_cb fn, struct device *codec_dev) +{ + bool plugged; + + dp_display->plugged_cb = fn; + dp_display->codec_dev = codec_dev; + plugged = dp_display->is_connected; + dp_display_handle_plugged_change(dp_display, plugged); + + return 0; +} + int dp_display_validate_mode(struct msm_dp *dp, u32 mode_pclk_khz) { const u32 num_components = 3, default_bpp = 24; @@ -1349,6 +1371,8 @@ int msm_dp_display_pre_disable(struct msm_dp *dp, struct drm_encoder *encoder) dp_ctrl_push_idle(dp_display->ctrl); + dp_display_handle_plugged_change(dp, false); + return 0; } |