disp: msm: dp: change the detect callback to detect_ctx

The connector detect function is currently implemented as a
callback from the framework, and creates a context before
calling the detect_port_ctx MST callback. This change updates
the callflow so that the framework calls the new detect_ctx
function in the MST case. This removes the need for creating a
new context before calling further downstream functions.

In addition, references to the mst_connector_get_info
function were replaced by connector_get_info to avoid
redundancy.

Change-Id: I224d09e77fad4b6925a42b1bc912a05e3e4d060a
Signed-off-by: Sudarsan Ramesh <sudarame@codeaurora.org>

msm/sde/sde_connector.h

@@ -60,6 +60,19 @@ struct sde_connector_ops {
 			bool force,
 			void *display);
 
+	/**
+	 * detect_ctx - determine if connector is connected
+	 * @connector: Pointer to drm connector structure
+	 * @ctx: Pointer to drm modeset acquire context structure
+	 * @force: Force detect setting from drm framework
+	 * @display: Pointer to private display handle
+	 * Returns: Connector 'is connected' status
+	 */
+	int (*detect_ctx)(struct drm_connector *connector,
+			struct drm_modeset_acquire_ctx *ctx,
+			bool force,
+			void *display);
+
 	/**
 	 * get_modes - add drm modes via drm_mode_probed_add()
 	 * @connector: Pointer to drm connector structure