drm/msm/dp: fix all kernel-doc warnings

Correct and add kernel-doc comments to eliminate all warnings:

Warning: ../drivers/gpu/drm/msm/dp/dp_debug.h:31 expecting prototype for
 msm_dp_debug_get(). Prototype was for msm_dp_debug_init() instead
Warning: ../drivers/gpu/drm/msm/dp/dp_drm.c:24 function parameter
 'connector' not described in 'msm_dp_bridge_detect'
Warning: ../drivers/gpu/drm/msm/dp/dp_link.h:90 expecting prototype for
 mdss_dp_test_bit_depth_to_bpp(). Prototype was for
 msm_dp_link_bit_depth_to_bpp() instead
Warning: ../drivers/gpu/drm/msm/dp/dp_link.h:126 function parameter
 'aux' not described in 'msm_dp_link_get'
Warning: ../drivers/gpu/drm/msm/dp/dp_link.h:126 function parameter
 'dev' not described in 'msm_dp_link_get'
Warning: ../drivers/gpu/drm/msm/dp/dp_panel.h:70 function parameter
 'bw_code' not described in 'is_link_rate_valid'
Warning: ../drivers/gpu/drm/msm/dp/dp_panel.h:84 expecting prototype for
 msm_dp_link_is_lane_count_valid(). Prototype was for
 is_lane_count_valid() instead

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/695647/
Link: https://lore.kernel.org/r/20251219184638.1813181-3-rdunlap@infradead.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>

Author: rddunlap

drivers/gpu/drm/msm/dp/dp_debug.h

@@ -12,7 +12,7 @@
 #if defined(CONFIG_DEBUG_FS)
 
 /**
- * msm_dp_debug_get() - configure and get the DisplayPlot debug module data
+ * msm_dp_debug_init() - configure and get the DisplayPlot debug module data
  *
  * @dev: device instance of the caller
  * @panel: instance of panel module

drivers/gpu/drm/msm/dp/dp_drm.c

@@ -18,6 +18,7 @@
 /**
  * msm_dp_bridge_detect - callback to determine if connector is connected
  * @bridge: Pointer to drm bridge structure
+ * @connector: Pointer to drm connector structure
  * Returns: Bridge's 'is connected' status
  */
 static enum drm_connector_status

drivers/gpu/drm/msm/dp/dp_link.h

@@ -80,11 +80,11 @@ struct msm_dp_link {
 };
 
 /**
- * mdss_dp_test_bit_depth_to_bpp() - convert test bit depth to bpp
+ * msm_dp_link_bit_depth_to_bpp() - convert test bit depth to bpp
  * @tbd: test bit depth
  *
- * Returns the bits per pixel (bpp) to be used corresponding to the
- * git bit depth value. This function assumes that bit depth has
+ * Returns: the bits per pixel (bpp) to be used corresponding to the
+ * bit depth value. This function assumes that bit depth has
  * already been validated.
  */
 static inline u32 msm_dp_link_bit_depth_to_bpp(u32 tbd)
@@ -120,7 +120,8 @@ bool msm_dp_link_send_edid_checksum(struct msm_dp_link *msm_dp_link, u8 checksum
 
 /**
  * msm_dp_link_get() - get the functionalities of dp test module
- *
+ * @dev: kernel device structure
+ * @aux: DisplayPort AUX channel
  *
  * return: a pointer to msm_dp_link struct
  */

drivers/gpu/drm/msm/dp/dp_panel.h

@@ -63,9 +63,9 @@ void msm_dp_panel_disable_vsc_sdp(struct msm_dp_panel *msm_dp_panel);
 
 /**
  * is_link_rate_valid() - validates the link rate
- * @lane_rate: link rate requested by the sink
+ * @bw_code: link rate requested by the sink
  *
- * Returns true if the requested link rate is supported.
+ * Returns: true if the requested link rate is supported.
  */
 static inline bool is_link_rate_valid(u32 bw_code)
 {
@@ -76,10 +76,10 @@ static inline bool is_link_rate_valid(u32 bw_code)
 }
 
 /**
- * msm_dp_link_is_lane_count_valid() - validates the lane count
+ * is_lane_count_valid() - validates the lane count
  * @lane_count: lane count requested by the sink
  *
- * Returns true if the requested lane count is supported.
+ * Returns: true if the requested lane count is supported.
  */
 static inline bool is_lane_count_valid(u32 lane_count)
 {