drm/amd/display: Eliminate warnings in amdgpu_dm_helpers.c

Fix the following warnings reported by checkpatch:

WARNING: Block comments use a trailing */ on a separate line
WARNING: Prefer using '"%s...", __func__' to using 'execute_synaptics_rc_command', this function's name, in a string
WARNING: Prefer using '"%s...", __func__' to using 'apply_synaptics_fifo_reset_wa', this function's name, in a string
WARNING: braces {} are not necessary for single statement blocks

Cc: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Cc: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c

@@ -68,15 +68,15 @@ static void apply_edid_quirks(struct edid *edid, struct dc_edid_caps *edid_caps)
 	}
 }
 
-/* dm_helpers_parse_edid_caps
- *
- * Parse edid caps
+/**
+ * dm_helpers_parse_edid_caps() - Parse edid caps
  *
+ * @link: current detected link
  * @edid:	[in] pointer to edid
- *  edid_caps:	[in] pointer to edid caps
- * @return
- *	void
- * */
+ * @edid_caps:	[in] pointer to edid caps
+ *
+ * Return: void
+ */
 enum dc_edid_status dm_helpers_parse_edid_caps(
 		struct dc_link *link,
 		const struct dc_edid *edid,
@@ -255,7 +255,8 @@ bool dm_helpers_dp_mst_write_payload_allocation_table(
 	/* Accessing the connector state is required for vcpi_slots allocation
 	 * and directly relies on behaviour in commit check
 	 * that blocks before commit guaranteeing that the state
-	 * is not gonna be swapped while still in use in commit tail */
+	 * is not gonna be swapped while still in use in commit tail
+	 */
 
 	if (!aconnector || !aconnector->mst_root)
 		return false;
@@ -282,7 +283,8 @@ bool dm_helpers_dp_mst_write_payload_allocation_table(
 	/* mst_mgr->->payloads are VC payload notify MST branch using DPCD or
 	 * AUX message. The sequence is slot 1-63 allocated sequence for each
 	 * stream. AMD ASIC stream slot allocation should follow the same
-	 * sequence. copy DRM MST allocation to dc */
+	 * sequence. copy DRM MST allocation to dc
+	 */
 	fill_dc_mst_payload_table_from_drm(stream->link, enable, target_payload, proposed_table);
 
 	return true;
@@ -633,7 +635,7 @@ static bool execute_synaptics_rc_command(struct drm_dp_aux *aux,
 	ret = drm_dp_dpcd_write(aux, SYNAPTICS_RC_COMMAND, &rc_cmd, sizeof(rc_cmd));
 
 	if (ret < 0) {
-		DRM_ERROR("	execute_synaptics_rc_command - write cmd ..., err = %d\n", ret);
+		DRM_ERROR("%s: write cmd ..., err = %d\n",  __func__, ret);
 		return false;
 	}
 
@@ -655,7 +657,7 @@ static bool execute_synaptics_rc_command(struct drm_dp_aux *aux,
 		drm_dp_dpcd_read(aux, SYNAPTICS_RC_DATA, data, length);
 	}
 
-	DC_LOG_DC("	execute_synaptics_rc_command - success = %d\n", success);
+	DC_LOG_DC("%s: success = %d\n", __func__, success);
 
 	return success;
 }
@@ -664,7 +666,7 @@ static void apply_synaptics_fifo_reset_wa(struct drm_dp_aux *aux)
 {
 	unsigned char data[16] = {0};
 
-	DC_LOG_DC("Start apply_synaptics_fifo_reset_wa\n");
+	DC_LOG_DC("Start %s\n", __func__);
 
 	// Step 2
 	data[0] = 'P';
@@ -722,7 +724,7 @@ static void apply_synaptics_fifo_reset_wa(struct drm_dp_aux *aux)
 	if (!execute_synaptics_rc_command(aux, true, 0x02, 0, 0, NULL))
 		return;
 
-	DC_LOG_DC("Done apply_synaptics_fifo_reset_wa\n");
+	DC_LOG_DC("Done %s\n", __func__);
 }
 
 /* MST Dock */
@@ -995,9 +997,8 @@ void dm_helpers_override_panel_settings(
 	struct dc_panel_config *panel_config)
 {
 	// Feature DSC
-	if (amdgpu_dc_debug_mask & DC_DISABLE_DSC) {
+	if (amdgpu_dc_debug_mask & DC_DISABLE_DSC)
 		panel_config->dsc.disable_dsc_edp = true;
-	}
 }
 
 void *dm_helpers_allocate_gpu_mem(