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From: frowand.list@gmail.com (Frank Rowand)
To: linux-arm-kernel@lists.infradead.org
Subject: [patch 7/7] dt: dtb version: report dtb info
Date: Wed, 18 Mar 2015 20:41:27 -0700	[thread overview]
Message-ID: <550A4567.5030803@gmail.com> (raw)
In-Reply-To: <550A42AC.8060104@gmail.com>

From: Frank Rowand <frank.rowand@sonymobile.com>

Report the /chosen/dtb-info properties on boot.

Signed-off-by: Frank Rowand <frank.rowand@sonymobile.com>
---

The beginning of the context for hunk 2 includes a line from
2fa645cb2703d9b3786d850db815414dfeefa51d, which is in 4.0-rc4.  The
author of that commit has submitted a request to revert the commit:
http://lkml.iu.edu/hypermail/linux/kernel/1503.2/02134.html


 drivers/of/base.c |   42 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)

Index: b/drivers/of/base.c
===================================================================
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -1880,6 +1880,7 @@ static void of_alias_add(struct alias_pr
 void of_alias_scan(void * (*dt_alloc)(u64 size, u64 align))
 {
 	struct property *pp;
+	struct device_node *dtb_info = NULL;
 
 	of_aliases = of_find_node_by_path("/aliases");
 	of_chosen = of_find_node_by_path("/chosen");
@@ -1899,6 +1900,47 @@ void of_alias_scan(void * (*dt_alloc)(u6
 		}
 	}
 
+	dtb_info = of_find_node_by_path("/chosen/dtb-info");
+	if (dtb_info == NULL)
+		dtb_info = of_find_node_by_path("/chosen at 0/dtb-info");
+
+	if (dtb_info) {
+		const char *string;
+		int len;
+
+		string = of_get_property(dtb_info, "version", &len);
+		if (string) {
+			pr_notice("DTB version ");
+			for ( ; len > 0;
+				len -= (strlen(string) + 1),
+				string += (strlen(string) + 1)) {
+				pr_cont("%s", string);
+			}
+			pr_cont("\n");
+		}
+
+		string = of_get_property(dtb_info, "version-linux", &len);
+		if (string) {
+			pr_notice("DTB linux version ");
+			for ( ; len > 0;
+				len -= (strlen(string) + 1),
+				string += (strlen(string) + 1)) {
+				pr_cont("%s", string);
+			}
+			pr_cont("\n");
+		}
+
+		string = of_get_property(dtb_info, "dts-path", &len);
+		if (string)
+			pr_notice("DTB source %s\n", string);
+
+		string = of_get_property(dtb_info, "dtb-path", &len);
+		if (string)
+			pr_notice("DTB blob %s\n", string);
+
+		of_node_put(dtb_info);
+	}
+
 	if (!of_aliases)
 		return;
 

  parent reply	other threads:[~2015-03-19  3:41 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-19  3:29 [patch 0/7] dt: dtb version: add version info to dtb Frank Rowand
2015-03-19  3:31 ` [patch 1/7] dt: dtb version: consolidate documentation of chosen node bindings Frank Rowand
2015-03-19 13:40   ` Mark Rutland
2015-03-19  3:33 ` [patch 2/7] dt: dtb version: document chosen/dtb-info node binding Frank Rowand
2015-03-19 13:23   ` Rob Herring
2015-03-19 16:42     ` Frank Rowand
2015-03-19 18:41     ` Russell King - ARM Linux
2015-03-19 18:53       ` Mark Rutland
2015-03-19 19:01       ` Frank Rowand
2015-03-19 19:32         ` Russell King - ARM Linux
2015-03-19 20:44           ` Frank Rowand
2015-03-20 14:42             ` Mark Rutland
2015-03-19 13:49   ` Mark Rutland
2015-03-19 17:02     ` Frank Rowand
2015-03-19 17:23       ` Geert Uytterhoeven
2015-03-19 19:12       ` Mark Rutland
2015-03-19 21:27         ` Frank Rowand
2015-03-20 15:25           ` Mark Rutland
2015-03-19 17:37   ` Frank Rowand
2015-03-19  3:34 ` [patch 3/7] dt: dtb version: arm dts Makefile Frank Rowand
2015-03-19  3:36 ` [patch 4/7] dt: dtb version: kernel Makefile Frank Rowand
2015-03-19  3:38 ` [patch 5/7] dt: dtb version: kbuild scripts Frank Rowand
2015-03-19  3:39 ` [patch 6/7] dt: dtb version: dtsi files Frank Rowand
2015-03-19 18:46   ` Sascha Hauer
2015-03-19  3:41 ` Frank Rowand [this message]
2015-03-19  8:12 ` [patch 0/7] dt: dtb version: add version info to dtb Gregory CLEMENT
2015-03-19 17:05   ` Frank Rowand
2015-03-20 13:46 ` Rob Herring
2015-03-20 19:14   ` Uwe Kleine-König

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