drm: bridge: dw-hdmi: Store current connector in struct dw_hdmi

Store the connector that the bridge is currently wired to in the dw_hdmi
structure. This is currently identical to the connector field, but will
differ once the driver supports disabling connector creation.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200526011505.31884-21-laurent.pinchart+renesas@ideasonboard.com

diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index 35d38b6..16bffed 100644 (file)
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -181,6 +181,7 @@ struct dw_hdmi {
 
        struct mutex mutex;             /* for state below and previous_mode */
        enum drm_connector_force force; /* mutex-protected force state */
+       struct drm_connector *curr_conn;/* current connector (only valid when !disabled) */
        bool disabled;                  /* DRM has disabled our bridge */
        bool bridge_is_on;              /* indicates the bridge is on */
        bool rxsense;                   /* rxsense state */
@@ -2823,23 +2824,32 @@ static void dw_hdmi_bridge_mode_set(struct drm_bridge *bridge,
        mutex_unlock(&hdmi->mutex);
 }
 
-static void dw_hdmi_bridge_disable(struct drm_bridge *bridge)
+static void dw_hdmi_bridge_atomic_disable(struct drm_bridge *bridge,
+                                         struct drm_bridge_state *old_state)
 {
        struct dw_hdmi *hdmi = bridge->driver_private;
 
        mutex_lock(&hdmi->mutex);
        hdmi->disabled = true;
+       hdmi->curr_conn = NULL;
        dw_hdmi_update_power(hdmi);
        dw_hdmi_update_phy_mask(hdmi);
        mutex_unlock(&hdmi->mutex);
 }
 
-static void dw_hdmi_bridge_enable(struct drm_bridge *bridge)
+static void dw_hdmi_bridge_atomic_enable(struct drm_bridge *bridge,
+                                        struct drm_bridge_state *old_state)
 {
        struct dw_hdmi *hdmi = bridge->driver_private;
+       struct drm_atomic_state *state = old_state->base.state;
+       struct drm_connector *connector;
+
+       connector = drm_atomic_get_new_connector_for_encoder(state,
+                                                            bridge->encoder);
 
        mutex_lock(&hdmi->mutex);
        hdmi->disabled = false;
+       hdmi->curr_conn = connector;
        dw_hdmi_update_power(hdmi);
        dw_hdmi_update_phy_mask(hdmi);
        mutex_unlock(&hdmi->mutex);
@@ -2854,8 +2864,8 @@ static const struct drm_bridge_funcs dw_hdmi_bridge_funcs = {
        .atomic_check = dw_hdmi_bridge_atomic_check,
        .atomic_get_output_bus_fmts = dw_hdmi_bridge_atomic_get_output_bus_fmts,
        .atomic_get_input_bus_fmts = dw_hdmi_bridge_atomic_get_input_bus_fmts,
-       .enable = dw_hdmi_bridge_enable,
-       .disable = dw_hdmi_bridge_disable,
+       .atomic_enable = dw_hdmi_bridge_atomic_enable,
+       .atomic_disable = dw_hdmi_bridge_atomic_disable,
        .mode_set = dw_hdmi_bridge_mode_set,
        .mode_valid = dw_hdmi_bridge_mode_valid,
 };