omap: clock: Check for enable/disable ops support
Check if enable/disable operations are supported for a given
clock node before attempting to call them.
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c
index e9625fc..b187596 100644
--- a/arch/arm/mach-omap2/clock.c
+++ b/arch/arm/mach-omap2/clock.c
@@ -261,7 +261,8 @@
pr_debug("clock: %s: disabling in hardware\n", clk->name);
- clk->ops->disable(clk);
+ if (clk->ops && clk->ops->disable)
+ clk->ops->disable(clk);
if (clk->clkdm)
clkdm_clk_disable(clk->clkdm, clk);
@@ -312,10 +313,13 @@
}
}
- ret = clk->ops->enable(clk);
- if (ret) {
- WARN(1, "clock: %s: could not enable: %d\n", clk->name, ret);
- goto oce_err3;
+ if (clk->ops && clk->ops->enable) {
+ ret = clk->ops->enable(clk);
+ if (ret) {
+ WARN(1, "clock: %s: could not enable: %d\n",
+ clk->name, ret);
+ goto oce_err3;
+ }
}
return 0;