From da1497d08b8d9240fc892d0cca536d25141bd3e0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Yannick=20Fertr=C3=A9?= <yannick.fertre@st.com>
Date: Tue, 21 Jan 2020 11:24:56 +0100
Subject: drm/bridge/synopsys: dsi: missing post disable
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Git-commit: 7ca0116077f54d61a0449650e8e8ea3b278d9179
Patch-mainline: v5.7-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322
Sometime the post_disable function is missing (not registered).
Signed-off-by: Yannick Fertré <yannick.fertre@st.com>
Reviewed-by: Philippe Cornu <philippe.cornu@st.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1579602296-7683-1-git-send-email-yannick.fertre@st.com
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
index b18351b6760a..12823ae91065 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
@@ -824,7 +824,8 @@ static void dw_mipi_dsi_bridge_post_disable(struct drm_bridge *bridge)
* This needs to be fixed in the drm_bridge framework and the API
* needs to be updated to manage our own call chains...
*/
- dsi->panel_bridge->funcs->post_disable(dsi->panel_bridge);
+ if (dsi->panel_bridge->funcs->post_disable)
+ dsi->panel_bridge->funcs->post_disable(dsi->panel_bridge);
if (phy_ops->power_off)
phy_ops->power_off(dsi->plat_data->priv_data);
--
2.28.0