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drm/bridge: maxim-max96745: Add video status check

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Signed-off-by: Wyon Bi <bivvy.bi@rock-chips.com>
Change-Id: I8563e1c8c885034b7c1cb61389ce8cc97c8114c3
This commit is contained in:
Wyon Bi
2022-08-03 10:37:09 +00:00
parent 176a78c0ce
commit bf78aaf1e6
1 changed files with 19 additions and 2 deletions
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21
drivers/gpu/drm/bridge/maxim-max96745.c
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@@ -101,6 +101,19 @@ static bool max96745_bridge_link_locked(struct max96745_bridge *ser)
return true;
}
static bool max96745_bridge_vid_tx_active(struct max96745_bridge *ser)
{
u32 val;
if (regmap_read(ser->regmap, 0x0107, &val))
return false;
if (!FIELD_GET(VID_TX_ACTIVE_A | VID_TX_ACTIVE_B, val))
return false;
return true;
}
static int max96745_bridge_attach(struct drm_bridge *bridge,
enum drm_bridge_attach_flags flags)
{
@@ -134,13 +147,16 @@ static int max96745_bridge_attach(struct drm_bridge *bridge,
return ret;
}
if (max96745_bridge_link_locked(ser)) {
if (max96745_bridge_link_locked(ser))
connector->status = connector_status_connected;
else
connector->status = connector_status_disconnected;
if (max96745_bridge_vid_tx_active(ser)) {
extcon_set_state(ser->extcon, EXTCON_JACK_VIDEO_OUT, true);
enable_irq(ser->lock.irq);
ser->lock.irq_enabled = true;
} else {
connector->status = connector_status_disconnected;
extcon_set_state(ser->extcon, EXTCON_JACK_VIDEO_OUT, false);
}
@@ -163,6 +179,7 @@ static void max96745_bridge_enable(struct drm_bridge *bridge)
regmap_update_bits(ser->regmap, 0x0100, VID_TX_EN,
FIELD_PREP(VID_TX_EN, 1));
msleep(50);
if (ser->panel)
drm_panel_enable(ser->panel);