From: Rajan Vaja <rajan.vaja@xilinx.com>
Date: Fri, 10 Aug 2018 08:45:34 +0000 (-0700)
Subject: dm: core: Scan "/firmware" node by default
X-Git-Tag: v2018.11-rc1~115^2~6
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=1712ca21924b;p=oweals%2Fu-boot.git

dm: core: Scan "/firmware" node by default

All Linux firmware drivers are put under "/firmware" node
and it has support to populate "/firmware" node by default.

u-boot and Linux can share same DTB. In this case, driver
probe for devices under "/firmware" will not be invoked
as "/firmware" does not have its own "compatible" property.

This patch scans "/firmware" node by default like "/clocks".

Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
---

diff --git a/drivers/core/root.c b/drivers/core/root.c
index 1ab4c38bcf..47d10b888f 100644
--- a/drivers/core/root.c
+++ b/drivers/core/root.c
@@ -357,8 +357,14 @@ int dm_extended_scan_fdt(const void *blob, bool pre_reloc_only)
 	}
 
 	ret = dm_scan_fdt_ofnode_path("/clocks", pre_reloc_only);
-	if (ret)
+	if (ret) {
 		debug("scan for /clocks failed: %d\n", ret);
+		return ret;
+	}
+
+	ret = dm_scan_fdt_ofnode_path("/firmware", pre_reloc_only);
+	if (ret)
+		debug("scan for /firmware failed: %d\n", ret);
 
 	return ret;
 }