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From:   Vasily Khoruzhick <anarsoul@gmail.com>
To:     Andrzej Hajda <a.hajda@samsung.com>,
        Neil Armstrong <narmstrong@baylibre.com>,
        Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
        Jonas Karlman <jonas@kwiboo.se>,
        Jernej Skrabec <jernej.skrabec@siol.net>,
        David Airlie <airlied@linux.ie>,
        Daniel Vetter <daniel@ffwll.ch>, Torsten Duwe <duwe@lst.de>,
        Maxime Ripard <maxime@cerno.tech>,
        Icenowy Zheng <icenowy@aosc.io>,
        Sam Ravnborg <sam@ravnborg.org>,
        Stephen Rothwell <sfr@canb.auug.org.au>,
        Samuel Holland <samuel@sholland.org>,
        dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org
Cc:     Vasily Khoruzhick <anarsoul@gmail.com>
Subject: [PATCH] drm/bridge: anx6345: set correct BPC for display_info of connector
Date:   Sun, 29 Mar 2020 15:22:53 -0700
Message-Id: <20200329222253.2941405-1-anarsoul@gmail.com>
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Some drivers (e.g. sun4i-drm) need this info to decide whether they
need to enable dithering. Currently driver reports what panel supports
and if panel supports 8 we don't get dithering enabled.

Hardcode BPC to 6 for now since that's the only BPC
that driver supports.

Fixes: 6aa192698089 ("drm/bridge: Add Analogix anx6345 support")
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
---
 drivers/gpu/drm/bridge/analogix/analogix-anx6345.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c b/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c
index d7cb10c599a3..ea5de9395662 100644
--- a/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c
+++ b/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c
@@ -494,6 +494,9 @@ static int anx6345_get_modes(struct drm_connector *connector)
 
 	num_modes += drm_add_edid_modes(connector, anx6345->edid);
 
+	/* Driver currently supports only 6bpc */
+	connector->display_info.bpc = 6;
+
 unlock:
 	if (power_off)
 		anx6345_poweroff(anx6345);
-- 
2.25.0