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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Tomi Valkeinen <tomi.valkeinen@ti.com>,
        Nishanth Menon <nm@ti.com>,
        Nikhil Devshatwar <nikhil.nd@ti.com>
Subject: [PATCH 5.10 595/717] arm64: dts: ti: k3-am65: mark dss as dma-coherent
Date:   Mon, 28 Dec 2020 13:49:53 +0100
Message-Id: <20201228125049.418042163@linuxfoundation.org>
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From: Tomi Valkeinen <tomi.valkeinen@ti.com>

commit 50301e8815c681bc5de8ca7050c4b426923d4e19 upstream.

DSS is IO coherent on AM65, so we should mark it as such with
'dma-coherent' property in the DT file.

Fixes: fc539b90eda2 ("arm64: dts: ti: am654: Add DSS node")
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Nikhil Devshatwar <nikhil.nd@ti.com>
Cc: stable@vger.kernel.org # v5.8+
Link: https://lore.kernel.org/r/20201102134650.55321-1-tomi.valkeinen@ti.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/arm64/boot/dts/ti/k3-am65-main.dtsi |    2 ++
 1 file changed, 2 insertions(+)

--- a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
@@ -867,6 +867,8 @@
 
 		status = "disabled";
 
+		dma-coherent;
+
 		dss_ports: ports {
 			#address-cells = <1>;
 			#size-cells = <0>;