[ARM] pxa: allow clk aliases
We need to support more than one name+device for a struct clk for a
small number of peripherals. We do this by re-using struct clk alias
to another struct clk - IOW, if we find that the entry we're using is
an alias, we return the aliased entry not the one we found.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-pxa/clock.h b/arch/arm/mach-pxa/clock.h
index bc6b77e..83cbfab 100644
--- a/arch/arm/mach-pxa/clock.h
+++ b/arch/arm/mach-pxa/clock.h
@@ -15,6 +15,7 @@
unsigned int cken;
unsigned int delay;
unsigned int enabled;
+ struct clk *other;
};
#define INIT_CKEN(_name, _cken, _rate, _delay, _dev) \
@@ -35,6 +36,17 @@
.cken = CKEN_##_cken, \
}
+/*
+ * This is a placeholder to alias one clock device+name pair
+ * to another struct clk.
+ */
+#define INIT_CKOTHER(_name, _other, _dev) \
+ { \
+ .name = _name, \
+ .dev = _dev, \
+ .other = _other, \
+ }
+
extern const struct clkops clk_cken_ops;
void clk_cken_enable(struct clk *clk);