From: Bin Meng <bmeng.cn@gmail.com>
Date: Mon, 24 Aug 2015 08:14:01 +0000 (-0700)
Subject: dm: pci: Optimize pci_uclass_post_bind()
X-Git-Tag: KARO-TX6-2015-09-18~129
X-Git-Url: https://git.kernelconcepts.de/?p=karo-tx-uboot.git;a=commitdiff_plain;h=01ec422665b32191b940a355ebc6bb107fa9e8e7

dm: pci: Optimize pci_uclass_post_bind()

If there is no pci device listed in the device tree,
don't bother scanning the device tree.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
---

diff --git a/drivers/pci/pci-uclass.c b/drivers/pci/pci-uclass.c
index 2d12344ae2..b25298fb5e 100644
--- a/drivers/pci/pci-uclass.c
+++ b/drivers/pci/pci-uclass.c
@@ -631,6 +631,13 @@ error:
 
 static int pci_uclass_post_bind(struct udevice *bus)
 {
+	/*
+	 * If there is no pci device listed in the device tree,
+	 * don't bother scanning the device tree.
+	 */
+	if (bus->of_offset == -1)
+		return 0;
+
 	/*
 	 * Scan the device tree for devices. This does not probe the PCI bus,
 	 * as this is not permitted while binding. It just finds devices