m68knommu: define a local devm_clk_get() function

From: Greg Ungerer <[email protected]>

Commit f4d40de39a23f0c39cca55ac63e1175c69c3d2f7 ("net fec: do not depend on grouped clocks") breaks compilation of the FEC driver for non iMX platforms in linux-3.5-rc1. For example when compiling for ColdFire I get:

LD vmlinux
drivers/built-in.o: In function `fec_probe':
fec.c:(.devinit.text+0x1e0): undefined reference to `devm_clk_get'

Define a simple devm_clk_get() function for the m68knommu architecture.

---
 arch/m68k/platform/coldfire/clk.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

index 9f1260c..44da406 100644
@@ -42,4 +42,11 @@ unsigned long clk_get_rate(struct clk *clk)
 	return MCF_CLK;
 }
 EXPORT_SYMBOL(clk_get_rate);
+
+struct clk *devm_clk_get(struct device *dev, const char *id)
+{
+	return NULL;
+}
+EXPORT_SYMBOL(devm_clk_get);
+
 /***************************************************************************/

1.7.0.4