Merge tag 'devicetree-for-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull DeviceTree updates from Rob Herring:
 "Pretty standard stuff with dtc upstream sync being the biggest piece.

   - Sync dtc to upstream commit 0931cea3ba20. This picks up overlay
     support in dtc.

   - Set dma_ops for reserved memory users.

   - Make references to IOMMU consistent in DT bindings.

   - Cleanup references to pm_power_off in bindings.

   - Move some display bindings that snuck into the old bindings/video/
     path.

   - Fix some wrong documentation paths caused from binding
     restructuring.

   - Vendor prefixes for Faraday and Fujitsu.

   - Fix an of_node ref counting leak in of_find_node_opts_by_path

   - Introduce new graph helper of_graph_get_remote_node() which will be
     used by DRM drivers in 4.12"

* tag 'devicetree-for-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (27 commits)
  DT: add Faraday Tec. as vendor
  of: introduce of_graph_get_remote_node
  of: Add missing space at end of pr_fmt().
  of: make of_device_make_bus_id() static
  of: fix of_node leak caused in of_find_node_opts_by_path
  dt-bindings: net: remove reference to fixed link support
  dt-bindings: power: reset: qnap-poweroff: Drop reference to pm_power_off
  dt-bindings: power: reset: gpio-poweroff: Drop reference to pm_power_off
  dt-bindings: mfd: as3722: Drop reference to pm_power_off
  dt-bindings: display: move ANX7814 and SiI8620 bridge bindings
  of/unittest: Swap arguments of of_unittest_apply_overlay()
  Documentation: usb: fix wrong documentation paths
  serial: fsl-imx-uart.txt: Remove generic property
  devicetree: Add Fujitsu Ltd. vendor prefix
  Documentation: display: fix wrong documentation paths
  of: remove redundant memset in overlay
  bus:qcom : Fix typo in qcom,ebi2.txt
  dt-bindings: qman: Remove pool channel node
  Documentation: panel-dpi: fix path to display-timing.txt
  devicetree: bindings: clk: mvebu: fix description for sata1 on Armada XP
  ...

1 files changed, 30 insertions, 0 deletions

diff --git a/scripts/dtc/util.c b/scripts/dtc/util.c
index fb124eea4919..3550f86bd6df 100644
--- a/scripts/dtc/util.c
+++ b/scripts/dtc/util.c
@@ -46,6 +46,36 @@ char *xstrdup(const char *s)
 	return d;
 }
 
+/* based in part from (3) vsnprintf */
+int xasprintf(char **strp, const char *fmt, ...)
+{
+	int n, size = 128;	/* start with 128 bytes */
+	char *p;
+	va_list ap;
+
+	/* initial pointer is NULL making the fist realloc to be malloc */
+	p = NULL;
+	while (1) {
+		p = xrealloc(p, size);
+
+		/* Try to print in the allocated space. */
+		va_start(ap, fmt);
+		n = vsnprintf(p, size, fmt, ap);
+		va_end(ap);
+
+		/* If that worked, return the string. */
+		if (n > -1 && n < size)
+			break;
+		/* Else try again with more space. */
+		if (n > -1)	/* glibc 2.1 */
+			size = n + 1; /* precisely what is needed */
+		else		/* glibc 2.0 */
+			size *= 2; /* twice the old size */
+	}
+	*strp = p;
+	return strlen(p);
+}
+
 char *join_path(const char *path, const char *name)
 {
 	int lenp = strlen(path);