From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>,
Tomi Valkeinen <tomi.valkeinen@ti.com>,
Tony Lindgren <tony@atomide.com>, Sasha Levin <sashal@kernel.org>,
linux-omap@vger.kernel.org, devicetree@vger.kernel.org
Subject: [PATCH AUTOSEL 4.4 05/11] ARM: dts: am4372: Set memory bandwidth limit for DISPC
Date: Wed, 9 Oct 2019 13:06:39 -0400 [thread overview]
Message-ID: <20191009170646.696-5-sashal@kernel.org> (raw)
In-Reply-To: <20191009170646.696-1-sashal@kernel.org>
From: Peter Ujfalusi <peter.ujfalusi@ti.com>
[ Upstream commit f90ec6cdf674248dcad85bf9af6e064bf472b841 ]
Set memory bandwidth limit to filter out resolutions above 720p@60Hz to
avoid underflow errors due to the bandwidth needs of higher resolutions.
am43xx can not provide enough bandwidth to DISPC to correctly handle
'high' resolutions.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm/boot/dts/am4372.dtsi | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm/boot/dts/am4372.dtsi b/arch/arm/boot/dts/am4372.dtsi
index 3ef1d5a26389c..3bb5254a227a3 100644
--- a/arch/arm/boot/dts/am4372.dtsi
+++ b/arch/arm/boot/dts/am4372.dtsi
@@ -1002,6 +1002,8 @@
ti,hwmods = "dss_dispc";
clocks = <&disp_clk>;
clock-names = "fck";
+
+ max-memory-bandwidth = <230000000>;
};
rfbi: rfbi@4832a800 {
--
2.20.1
parent reply other threads:[~2019-10-09 17:06 UTC|newest]
Thread overview: expand[flat|nested] mbox.gz Atom feed
[parent not found: <20191009170646.696-1-sashal@kernel.org>]
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