diff options
| author | Sam Ravnborg <sam@ravnborg.org> | 2020-07-27 19:03:16 +0200 |
|---|---|---|
| committer | Sam Ravnborg <sam@ravnborg.org> | 2020-07-27 19:22:26 +0200 |
| commit | 136d73a8c88d113b46d29c51710fe9e689e1b93e (patch) | |
| tree | efdc3887f5cb72299f36dcf3ee2d31a7902ab745 /drivers/gpu/drm/bridge/tc358767.c | |
| parent | a8ef18d7dd4817cc35ab03358b3fe2aafad22d9f (diff) | |
drm/bridge: tc358767: add detect bridge operation
Prepare the bridge driver for chained operation by adding
support for the detect operation.
v3:
- Fix code to make it readable (Laurent)
v2:
- Do not announce detect operation if there is no hpd pin (Laurent)
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Andrzej Hajda <a.hajda@samsung.com>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
Cc: Jonas Karlman <jonas@kwiboo.se>
Cc: Jernej Skrabec <jernej.skrabec@siol.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20200727170320.959777-2-sam@ravnborg.org
Diffstat (limited to 'drivers/gpu/drm/bridge/tc358767.c')
| -rw-r--r-- | drivers/gpu/drm/bridge/tc358767.c | 30 |
1 files changed, 20 insertions, 10 deletions
diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c index c2777b226c75..bde89e213882 100644 --- a/drivers/gpu/drm/bridge/tc358767.c +++ b/drivers/gpu/drm/bridge/tc358767.c @@ -1369,21 +1369,13 @@ static const struct drm_connector_helper_funcs tc_connector_helper_funcs = { .get_modes = tc_connector_get_modes, }; -static enum drm_connector_status tc_connector_detect(struct drm_connector *connector, - bool force) +static enum drm_connector_status tc_bridge_detect(struct drm_bridge *bridge) { - struct tc_data *tc = connector_to_tc(connector); + struct tc_data *tc = bridge_to_tc(bridge); bool conn; u32 val; int ret; - if (tc->hpd_pin < 0) { - if (tc->panel) - return connector_status_connected; - else - return connector_status_unknown; - } - ret = regmap_read(tc->regmap, GPIOI, &val); if (ret) return connector_status_unknown; @@ -1396,6 +1388,20 @@ static enum drm_connector_status tc_connector_detect(struct drm_connector *conne return connector_status_disconnected; } +static enum drm_connector_status +tc_connector_detect(struct drm_connector *connector, bool force) +{ + struct tc_data *tc = connector_to_tc(connector); + + if (tc->hpd_pin >= 0) + return tc_bridge_detect(&tc->bridge); + + if (tc->panel) + return connector_status_connected; + else + return connector_status_unknown; +} + static const struct drm_connector_funcs tc_connector_funcs = { .detect = tc_connector_detect, .fill_modes = drm_helper_probe_single_connector_modes, @@ -1458,6 +1464,7 @@ static const struct drm_bridge_funcs tc_bridge_funcs = { .disable = tc_bridge_disable, .post_disable = tc_bridge_post_disable, .mode_fixup = tc_bridge_mode_fixup, + .detect = tc_bridge_detect, }; static bool tc_readable_reg(struct device *dev, unsigned int reg) @@ -1680,6 +1687,9 @@ static int tc_probe(struct i2c_client *client, const struct i2c_device_id *id) return ret; tc->bridge.funcs = &tc_bridge_funcs; + if (tc->hpd_pin >= 0) + tc->bridge.ops |= DRM_BRIDGE_OP_DETECT; + tc->bridge.of_node = dev->of_node; drm_bridge_add(&tc->bridge); |