drm/msm/dp: Remove dp_display_is_ds_bridge()

This function is simply drm_dp_is_branch() so use that instead of
open-coding it.

Cc: Vinod Polimera <quic_vpolimer@quicinc.com>
Cc: Kuogee Hsieh <quic_khsieh@quicinc.com>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Tested-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Reviewed-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/554989/
Link: https://lore.kernel.org/r/20230829184735.2841739-8-swboyd@chromium.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c
index 76f13954015b18d3df297826ea0672b9a4f10064..96bbf6fec2f1270ba46279d9c25673bb2a54a1ca 100644 (file)
--- a/drivers/gpu/drm/msm/dp/dp_display.c
+++ b/drivers/gpu/drm/msm/dp/dp_display.c
@@ -341,19 +341,12 @@ static const struct component_ops dp_display_comp_ops = {
        .unbind = dp_display_unbind,
 };
 
-static bool dp_display_is_ds_bridge(struct dp_panel *panel)
-{
-       return (panel->dpcd[DP_DOWNSTREAMPORT_PRESENT] &
-               DP_DWN_STRM_PORT_PRESENT);
-}
-
 static bool dp_display_is_sink_count_zero(struct dp_display_private *dp)
 {
        drm_dbg_dp(dp->drm_dev, "present=%#x sink_count=%d\n",
                        dp->panel->dpcd[DP_DOWNSTREAMPORT_PRESENT],
                dp->link->sink_count);
-       return dp_display_is_ds_bridge(dp->panel) &&
-               (dp->link->sink_count == 0);
+       return drm_dp_is_branch(dp->panel->dpcd) && dp->link->sink_count == 0;
 }
 
 static void dp_display_send_hpd_event(struct msm_dp *dp_display)