From 3231573065ad4f4ecc5c9147b24f29f846dc0c2f Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Tue, 28 May 2019 11:27:44 +0300
Subject: [PATCH] drm/bridge: tc358767: read display_props in get_modes()
Git-commit: 3231573065ad4f4ecc5c9147b24f29f846dc0c2f
Patch-mainline: v5.3-rc1
References: bsc#1051510

We need to know the link bandwidth to filter out modes we cannot
support, so we need to have read the display props before doing the
filtering.

To ensure we have up to date display props, call tc_get_display_props()
in the beginning of tc_connector_get_modes().

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190528082747.3631-22-tomi.valkeinen@ti.com
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/gpu/drm/bridge/tc358767.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c
index ffcbecf69d40..2b9d6046d76e 100644
--- a/drivers/gpu/drm/bridge/tc358767.c
+++ b/drivers/gpu/drm/bridge/tc358767.c
@@ -1188,6 +1188,13 @@ static int tc_connector_get_modes(struct drm_connector *connector)
 	struct tc_data *tc = connector_to_tc(connector);
 	struct edid *edid;
 	unsigned int count;
+	int ret;
+
+	ret = tc_get_display_props(tc);
+	if (ret < 0) {
+		dev_err(tc->dev, "failed to read display props: %d\n", ret);
+		return 0;
+	}
 
 	if (tc->panel && tc->panel->funcs && tc->panel->funcs->get_modes) {
 		count = tc->panel->funcs->get_modes(tc->panel);
-- 
2.16.4