According to the documentation max frequency for ACLK300_DISP1 is 300MHz.
Add an OPP which makes it possible to use the full performance when needed.

Signed-off-by: Lukasz Luba <l.l...@partner.samsung.com>
---
 arch/arm/boot/dts/exynos5420.dtsi | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm/boot/dts/exynos5420.dtsi 
b/arch/arm/boot/dts/exynos5420.dtsi
index 74d014f3eaa6..1097fa758d9e 100644
--- a/arch/arm/boot/dts/exynos5420.dtsi
+++ b/arch/arm/boot/dts/exynos5420.dtsi
@@ -1299,6 +1299,9 @@
                        opp01 {
                                opp-hz = /bits/ 64 <200000000>;
                        };
+                       opp02 {
+                               opp-hz = /bits/ 64 <300000000>;
+                       };
                };
 
                bus_disp1_opp_table: opp_table14 {
-- 
2.17.1

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