linux-kernel - [PATCH 4.9 088/130] ARM: dts: am33xx: Add an empty chosen node to top level DTSI

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Message-Id: <20170124075538.559175109@linuxfoundation.org>
Date:   Tue, 24 Jan 2017 08:55:28 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Pali Rohar <pali.rohar@...il.com>,
        Javier Martinez Canillas <javier@....samsung.com>,
        Tony Lindgren <tony@...mide.com>
Subject: [PATCH 4.9 088/130] ARM: dts: am33xx: Add an empty chosen node to top level DTSI

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Javier Martinez Canillas <javier@....samsung.com>

commit 1d8d6d3f2f7d553c479f24ab93767974a8c2dfad upstream.

Commit f8bf01611c99 ("ARM: dts: am33xx: Remove skeleton.dtsi usage")
removed the skeleton.dtsi usage since we want to get rid of it.

But this can cause issues when booting a kernel with a boot-loader
that doesn't create a chosen node if this isn't present in the DTB
since the decompressor relies on a pre-existing chosen node to be
available to insert the command line and merge other ATAGS info.

Fixes: f8bf01611c99 ("ARM: dts: am33xx: Remove skeleton.dtsi usage")
Reported-by: Pali Rohar <pali.rohar@...il.com>
Signed-off-by: Javier Martinez Canillas <javier@....samsung.com>
Signed-off-by: Tony Lindgren <tony@...mide.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/arm/boot/dts/am33xx.dtsi |    1 +
 1 file changed, 1 insertion(+)

--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot/dts/am33xx.dtsi
@@ -16,6 +16,7 @@
 	interrupt-parent = <&intc>;
 	#address-cells = <1>;
 	#size-cells = <1>;
+	chosen { };
 
 	aliases {
 		i2c0 = &i2c0;