diff options
| author | Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> | 2026-01-07 20:14:59 +0200 |
|---|---|---|
| committer | Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> | 2026-01-19 13:10:35 +0200 |
| commit | 3a4ceb89a9723088615ea1c960fc589f87caddb7 (patch) | |
| tree | e7ed99f2a6d26caa34b522893bfb43264e62e65b /drivers/gpu | |
| parent | 7436a87db99d57196c49d10de35f41531993d5f1 (diff) | |
drm/vc4: hdmi: implement clear_infoframe
Implement the clear_infoframe callback, disabling corresponding
InfoFrame type.
Acked-by: Maxime Ripard <mripard@kernel.org>
Link: https://patch.msgid.link/20260107-limit-infoframes-2-v4-2-213d0d3bd490@oss.qualcomm.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_hdmi.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c index 1798d1156d10..4cfb7ebc0c81 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -624,6 +624,30 @@ static int vc4_hdmi_stop_packet(struct vc4_hdmi *vc4_hdmi, return ret; } +static int vc4_hdmi_clear_infoframe(struct drm_connector *connector, + enum hdmi_infoframe_type type) +{ + struct vc4_hdmi *vc4_hdmi = connector_to_vc4_hdmi(connector); + struct drm_device *drm = connector->dev; + int ret; + int idx; + + if (!drm_dev_enter(drm, &idx)) + return 0; + + WARN_ONCE(!(HDMI_READ(HDMI_RAM_PACKET_CONFIG) & + VC4_HDMI_RAM_PACKET_ENABLE), + "Packet RAM has to be on to store the packet."); + + ret = vc4_hdmi_stop_packet(vc4_hdmi, type, true); + if (ret) + drm_err(drm, "Failed to wait for infoframe to go idle: %d\n", ret); + + drm_dev_exit(idx); + + return ret; +} + static int vc4_hdmi_write_infoframe(struct drm_connector *connector, enum hdmi_infoframe_type type, const u8 *infoframe, size_t len) @@ -1660,6 +1684,7 @@ vc4_hdmi_connector_clock_valid(const struct drm_connector *connector, static const struct drm_connector_hdmi_funcs vc4_hdmi_hdmi_connector_funcs = { .tmds_char_rate_valid = vc4_hdmi_connector_clock_valid, + .clear_infoframe = vc4_hdmi_clear_infoframe, .write_infoframe = vc4_hdmi_write_infoframe, }; |