From de3e3d848b88709a98efde55e90b25ce2595aaa9 Mon Sep 17 00:00:00 2001
From: Srinivas Ramana <sramana@codeaurora.org>
Date: Tue, 31 May 2016 11:11:52 +0530
Subject: [PATCH] mach-qcom: add support to populate dt nodes for 32-bit
 platforms

Add support to populate device tree nodes for the new
32-bit platforms under under mach-qcom.

Change-Id: I5fd747de84917c16f28f3f72d7b34b5db157637c
Signed-off-by: Srinivas Ramana <sramana@codeaurora.org>
Signed-off-by: Tengfei Fan <tengfeif@codeaurora.org>
Signed-off-by: Jeevan Shriram <jshriram@codeaurora.org>
---
 arch/arm/mach-qcom/Makefile   |  1 +
 arch/arm/mach-qcom/board-dt.c | 21 +++++++++++++++++++++
 arch/arm/mach-qcom/board-dt.h |  8 ++++++++
 3 files changed, 30 insertions(+)
 create mode 100644 arch/arm/mach-qcom/board-dt.c
 create mode 100644 arch/arm/mach-qcom/board-dt.h

diff --git a/arch/arm/mach-qcom/Makefile b/arch/arm/mach-qcom/Makefile
index b839201c9802..8c3a333a46fa 100644
--- a/arch/arm/mach-qcom/Makefile
+++ b/arch/arm/mach-qcom/Makefile
@@ -1,2 +1,3 @@
 # SPDX-License-Identifier: GPL-2.0-only
 obj-$(CONFIG_SMP)	+= platsmp.o
+obj-$(CONFIG_USE_OF) 	+= board-dt.o
diff --git a/arch/arm/mach-qcom/board-dt.c b/arch/arm/mach-qcom/board-dt.c
new file mode 100644
index 000000000000..1e3d1468544a
--- /dev/null
+++ b/arch/arm/mach-qcom/board-dt.c
@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2016-2020, The Linux Foundation. All rights reserved.
+ */
+
+#include <linux/kernel.h>
+#include <linux/of.h>
+#include <linux/of_fdt.h>
+
+#include "board-dt.h"
+
+void __init board_dt_populate(struct of_dev_auxdata *adata)
+{
+	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
+
+	/* Explicitly parent the /soc devices to the root node to preserve
+	 * the kernel ABI (sysfs structure, etc) until userspace is updated
+	 */
+	of_platform_populate(of_find_node_by_path("/soc"),
+			     of_default_bus_match_table, adata, NULL);
+}
diff --git a/arch/arm/mach-qcom/board-dt.h b/arch/arm/mach-qcom/board-dt.h
new file mode 100644
index 000000000000..7ca9f994c0a2
--- /dev/null
+++ b/arch/arm/mach-qcom/board-dt.h
@@ -0,0 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2016-2020, The Linux Foundation. All rights reserved.
+ */
+
+#include <linux/of_platform.h>
+
+void __init board_dt_populate(struct of_dev_auxdata *adata);