drm/i915/tv: Cleanup up obsolete comments

The ages old kerneldoc-esque comments still refer to the original stubs
and not the more complete functions. As they were only describing the
external entry points (or at least thought themselves to be, they had
drifted!), they don't provide any commentary for the code flow.

drivers/gpu/drm/i915/intel_tv.c:379: warning: cannot understand function prototype: 'const struct tv_mode tv_modes[] = '
drivers/gpu/drm/i915/intel_tv.c:1133: warning: bad line:
drivers/gpu/drm/i915/intel_tv.c:1140: warning: Function parameter or member 'intel_tv' not described in 'intel_tv_detect_type'
drivers/gpu/drm/i915/intel_tv.c:1140: warning: Function parameter or member 'connector' not described in 'intel_tv_detect_type'
drivers/gpu/drm/i915/intel_tv.c:1272: warning: Function parameter or member 'connector' not described in 'intel_tv_detect'
drivers/gpu/drm/i915/intel_tv.c:1272: warning: Function parameter or member 'ctx' not described in 'intel_tv_detect'
drivers/gpu/drm/i915/intel_tv.c:1272: warning: Function parameter or member 'force' not described in 'intel_tv_detect'
drivers/gpu/drm/i915/intel_tv.c:1351: warning: Function parameter or member 'connector' not described in 'intel_tv_get_modes'
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180214085814.2565-1-chris@chris-wilson.co.uk

drivers/gpu/drm/i915/intel_tv.c

@@ -43,7 +43,6 @@ enum tv_margin {
 	TV_MARGIN_RIGHT, TV_MARGIN_BOTTOM
 };
 
-/** Private structure for the integrated TV support */
 struct intel_tv {
 	struct intel_encoder base;
 
@@ -370,12 +369,11 @@ struct tv_mode {
  * The constants below were all computed using a 107.520MHz clock
  */
 
-/**
+/*
  * Register programming values for TV modes.
  *
  * These values account for -1s required.
  */
-
 static const struct tv_mode tv_modes[] = {
 	{
 		.name		= "NTSC-M",
@@ -1126,14 +1124,6 @@ static const struct drm_display_mode reported_modes[] = {
 	},
 };
 
-/**
- * Detects TV presence by checking for load.
- *
- * Requires that the current pipe's DPLL is active.
-
- * \return true if TV is connected.
- * \return false if TV is disconnected.
- */
 static int
 intel_tv_detect_type(struct intel_tv *intel_tv,
 		      struct drm_connector *connector)
@@ -1259,12 +1249,6 @@ static void intel_tv_find_better_format(struct drm_connector *connector)
 	connector->state->tv.mode = i;
 }
 
-/**
- * Detect the TV connection.
- *
- * Currently this always returns CONNECTOR_STATUS_UNKNOWN, as we need to be sure
- * we have a pipe programmed in order to probe the TV.
- */
 static int
 intel_tv_detect(struct drm_connector *connector,
 		struct drm_modeset_acquire_ctx *ctx,
@@ -1339,13 +1323,6 @@ intel_tv_choose_preferred_modes(const struct tv_mode *tv_mode,
 	}
 }
 
-/**
- * Stub get_modes function.
- *
- * This should probably return a set of fixed modes, unless we can figure out
- * how to probe modes off of TV connections.
- */
-
 static int
 intel_tv_get_modes(struct drm_connector *connector)
 {
@@ -1512,7 +1489,8 @@ intel_tv_init(struct drm_i915_private *dev_priv)
 	connector = &intel_connector->base;
 	state = connector->state;
 
-	/* The documentation, for the older chipsets at least, recommend
+	/*
+	 * The documentation, for the older chipsets at least, recommend
 	 * using a polling method rather than hotplug detection for TVs.
 	 * This is because in order to perform the hotplug detection, the PLLs
 	 * for the TV must be kept alive increasing power drain and starving