From 623787fd58c2ef2fc5a504eacc99672c464211eb Mon Sep 17 00:00:00 2001
From: Peng Fan <Peng.Fan@freescale.com>
Date: Thu, 29 Oct 2015 15:54:51 +0800
Subject: imx: imx-common: power down lcdif before boot os

Need to call lcdif_power_down to make lcdif in initial state
before kernel boot. Similar issue for uboot reset with lcdif
enabled, system will hang after serveral times resetting. Need
to let lcdif initial state to make all go well.

Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Eric Nelson <eric.nelson@boundarydevices.com>
Cc: Nikita Kiryanov <nikita@compulab.co.il>
Cc: Tim Harvey <tharvey@gateworks.com>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
---
 arch/arm/imx-common/cpu.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'arch')

diff --git a/arch/arm/imx-common/cpu.c b/arch/arm/imx-common/cpu.c
index d3d1fc5afa..656bb60bbe 100644
--- a/arch/arm/imx-common/cpu.c
+++ b/arch/arm/imx-common/cpu.c
@@ -279,6 +279,9 @@ void arch_preboot_os(void)
 	/* disable video before launching O/S */
 	ipuv3_fb_shutdown();
 #endif
+#if defined(CONFIG_VIDEO_MXS)
+	lcdif_power_down();
+#endif
 }
 
 void set_chipselect_size(int const cs_size)
-- 
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