linux-kernel - [PATCH] drm: clarify adjusted_mode for a bridge connected to a crtc

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Date:   Mon, 26 Feb 2018 13:16:04 +0100
From:   Philippe Cornu <philippe.cornu@...com>
To:     Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Daniel Vetter <daniel.vetter@...el.com>,
        Gustavo Padovan <gustavo@...ovan.org>,
        "Maarten Lankhorst" <maarten.lankhorst@...ux.intel.com>,
        Sean Paul <seanpaul@...omium.org>,
        David Airlie <airlied@...ux.ie>,
        <dri-devel@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>
CC:     Benjamin Gaignard <benjamin.gaignard@...aro.org>,
        Yannick Fertre <yannick.fertre@...com>,
        Philippe Cornu <philippe.cornu@...com>,
        "Vincent Abriou" <vincent.abriou@...com>
Subject: [PATCH] drm: clarify adjusted_mode for a bridge connected to a crtc

This patch clarifies the adjusted_mode documentation
for a bridge directly connected to a crtc.

Signed-off-by: Philippe Cornu <philippe.cornu@...com>
---
This patch is linked to the discussion https://lkml.org/lkml/2018/1/25/367

 include/drm/drm_bridge.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/drm/drm_bridge.h b/include/drm/drm_bridge.h
index 3270fec46979..b5f3c070467c 100644
--- a/include/drm/drm_bridge.h
+++ b/include/drm/drm_bridge.h
@@ -177,7 +177,8 @@ struct drm_bridge_funcs {
 	 * pipeline has been called already. If the bridge is the first element
 	 * then this would be &drm_encoder_helper_funcs.mode_set. The display
 	 * pipe (i.e.  clocks and timing signals) is off when this function is
-	 * called.
+	 * called. If the bridge is connected to the crtc, the adjusted_mode
+	 * parameter is the one defined in &drm_crtc_state.adjusted_mode.
 	 */
 	void (*mode_set)(struct drm_bridge *bridge,
 			 struct drm_display_mode *mode,
-- 
2.15.1