From: Mathieu Poirier <mathieu.poirier@linaro.org>
To: stable@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Subject: [stable 4.19][PATCH 1/4] ARM: dts: am4372: Set memory bandwidth limit for DISPC
Date: Tue, 15 Oct 2019 00:59:34 -0600 [thread overview]
Message-ID: <20191015065937.23169-1-mathieu.poirier@linaro.org> (raw)
From: Peter Ujfalusi <peter.ujfalusi@ti.com>
commit f90ec6cdf674248dcad85bf9af6e064bf472b841 upstream
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>
Cc: stable <stable@vger.kernel.org> # 4.19
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.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 d4b7c59eec68..cf1e4f747242 100644
--- a/arch/arm/boot/dts/am4372.dtsi
+++ b/arch/arm/boot/dts/am4372.dtsi
@@ -1142,6 +1142,8 @@
ti,hwmods = "dss_dispc";
clocks = <&disp_clk>;
clock-names = "fck";
+
+ max-memory-bandwidth = <230000000>;
};
rfbi: rfbi@4832a800 {
--
2.17.1
next reply other threads:[~2019-10-15 6:59 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-15 6:59 Mathieu Poirier [this message]
2019-10-15 6:59 ` [stable 4.19][PATCH 2/4] ASoC: pcm3168a: The codec does not support S32_LE Mathieu Poirier
2019-10-15 6:59 ` [stable 4.19][PATCH 3/4] arm64: dts: ti: k3-am65-main: Fix gic-its node unit-address Mathieu Poirier
2019-10-15 6:59 ` [stable 4.19][PATCH 4/4] usb: gadget: udc: core: Fix segfault if udc_bind_to_driver() for pending driver fails Mathieu Poirier
2019-10-16 18:31 ` [stable 4.19][PATCH 1/4] ARM: dts: am4372: Set memory bandwidth limit for DISPC Greg KH
2019-10-17 16:50 ` Mathieu Poirier
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