sunxi: driver refresh for 3.13

[openwrt/svn-archive/archive.git] / target / linux / sunxi / patches-3.13 / 160-3-phy-core-no-module-build.patch

diff --git a/target/linux/sunxi/patches-3.13/160-3-phy-core-no-module-build.patch b/target/linux/sunxi/patches-3.13/160-3-phy-core-no-module-build.patch
new file mode 100644 (file)
index 0000000..15be07e
--- /dev/null
+++ b/target/linux/sunxi/patches-3.13/160-3-phy-core-no-module-build.patch
@@ -0,0 +1,48 @@
+From 87c01c9ef0602abaa909771c6c6eab1f4c2c384d Mon Sep 17 00:00:00 2001
+From: Hans de Goede <hdegoede@redhat.com>
+Date: Tue, 11 Feb 2014 16:55:57 +0100
+Subject: [PATCH] phy-core: Don't allow building phy-core as a module
+
+include/phy/phy.h has stub code in there for when building without the
+phy-core enabled. This is useful for generic drivers such as ahci-platform,
+ehci-platoform and ohci-platform which have support for driving an optional
+phy passed to them through the devicetree.
+
+Since on some boards this phy functionality is not needed, being able to
+disable the phy subsystem without needing a lot of #ifdef magic in the
+driver using it is quite useful.
+
+However this breaks when the module using the phy subsystem is build-in and
+the phy-core is not, which leads to the build failing with missing symbol
+errors in the linking stage of the zImage.
+
+Which leads to gems such as this being added to the Kconfig for achi_platform:
+
+       depends on GENERIC_PHY || !GENERIC_PHY
+
+Rather then duplicating this code in a lot of places using the phy-core,
+I believe it is better to simply not allow the phy-core to be built as a
+module. The phy core is quite small and has no external dependencies, so
+always building it in when enabling it should not be an issue.
+
+Signed-off-by: Hans de Goede <hdegoede@redhat.com>
+---
+ drivers/phy/Kconfig | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig
+index afa2354..4ef8755 100644
+--- a/drivers/phy/Kconfig
++++ b/drivers/phy/Kconfig
+@@ -5,7 +5,7 @@
+ menu "PHY Subsystem"
+ 
+ config GENERIC_PHY
+-      tristate "PHY Core"
++      bool "PHY Core"
+       help
+         Generic PHY support.
+ 
+-- 
+1.8.5.5
+