drm/msm/dp: drop dp_mode argument from dp_panel_get_modes()

Since the commit ab20592 ("drm/msm/dp: remove mode hard-coding in
case of DP CTS") the function dp_panel_get_modes() doesn't use (or fill)
the dp_mode argument. Drop it completely.

Reviewed-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/480138/
Link: https://lore.kernel.org/r/20220330223008.649274-2-dmitry.baryshkov@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

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

@@ -1044,7 +1044,7 @@ int dp_display_get_modes(struct msm_dp *dp,
 	dp_display = container_of(dp, struct dp_display_private, dp_display);
 
 	ret = dp_panel_get_modes(dp_display->panel,
-		dp->connector, dp_mode);
+		dp->connector);
 	if (dp_mode->drm_mode.clock)
 		dp->max_pclk_khz = dp_mode->drm_mode.clock;
 	return ret;

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

@@ -262,7 +262,7 @@ u32 dp_panel_get_mode_bpp(struct dp_panel *dp_panel,
 }
 
 int dp_panel_get_modes(struct dp_panel *dp_panel,
-	struct drm_connector *connector, struct dp_display_mode *mode)
+	struct drm_connector *connector)
 {
 	if (!dp_panel) {
 		DRM_ERROR("invalid input\n");

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

@@ -64,7 +64,7 @@ int dp_panel_read_sink_caps(struct dp_panel *dp_panel,
 u32 dp_panel_get_mode_bpp(struct dp_panel *dp_panel, u32 mode_max_bpp,
 			u32 mode_pclk_khz);
 int dp_panel_get_modes(struct dp_panel *dp_panel,
-		struct drm_connector *connector, struct dp_display_mode *mode);
+		struct drm_connector *connector);
 void dp_panel_handle_sink_request(struct dp_panel *dp_panel);
 void dp_panel_tpg_config(struct dp_panel *dp_panel, bool enable);