drm/msm/dp: remove max_pclk_khz field from dp_panel/dp_display

Since the last commit, the max_pclk_khz became constant, it's set to
DP_MAX_PIXEL_CLK_KHZ and never changed afterwards. Remove it completely
and use DP_MAX_PIXEL_CLK_KHZ directly.
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/480139/
Link: https://lore.kernel.org/r/20220330223008.649274-4-dmitry.baryshkov@linaro.org
[DB: applied a fix to follow connector->bridge conversion]
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

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

@@ -44,8 +44,6 @@ static int dp_debug_show(struct seq_file *seq, void *p)
 	drm_mode = &debug->panel->dp_mode.drm_mode;
 
 	seq_printf(seq, "\tname = %s\n", DEBUG_NAME);
-	seq_printf(seq, "\tdp_panel\n\t\tmax_pclk_khz = %d\n",
-			debug->panel->max_pclk_khz);
 	seq_printf(seq, "\tdrm_dp_link\n\t\trate = %u\n",
 			debug->panel->link_info.rate);
 	seq_printf(seq, "\t\tnum_lanes = %u\n",

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

@@ -377,7 +377,6 @@ static int dp_display_process_hpd_high(struct dp_display_private *dp)
 	dp->audio_supported = drm_detect_monitor_audio(edid);
 	dp_panel_handle_sink_request(dp->panel);
 
-	dp->dp_display.max_pclk_khz = DP_MAX_PIXEL_CLK_KHZ;
 	dp->dp_display.max_dp_lanes = dp->parser->max_dp_lanes;
 
 	/*
@@ -1006,9 +1005,7 @@ enum drm_mode_status dp_bridge_mode_valid(struct drm_bridge *bridge,
 		return -EINVAL;
 	}
 
-	if ((dp->max_pclk_khz <= 0) ||
-			(dp->max_pclk_khz > DP_MAX_PIXEL_CLK_KHZ) ||
-			(mode->clock > dp->max_pclk_khz))
+	if (mode->clock > DP_MAX_PIXEL_CLK_KHZ)
 		return MODE_BAD;
 
 	dp_display = container_of(dp, struct dp_display_private, dp_display);

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

@@ -26,8 +26,6 @@ struct msm_dp {
 
 	bool wide_bus_en;
 
-	u32 max_pclk_khz;
-
 	u32 max_dp_lanes;
 	struct dp_audio *dp_audio;
 };

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

@@ -49,7 +49,6 @@ struct dp_panel {
 	bool video_test;
 
 	u32 vic;
-	u32 max_pclk_khz;
 	u32 max_dp_lanes;
 
 	u32 max_bw_code;