ARM: uniphier: add sg_set_iectrl_range()

For PH1-LD20 or later, per-pin input-enable control is supported,
that is, we need to set-up IECTRL registers for a group of pins.
This helper function will be useful for a bunch of register settings.

Signed-off-by: Masahiro Yamada <[email protected]>

diff --git a/arch/arm/mach-uniphier/sg-regs.h b/arch/arm/mach-uniphier/sg-regs.h
index 2cdc2db26efb2fa919a544d857cee3f3b507cdd2..4044245ee1854dcd390542f777cd1636d8b03178 100644 (file)
--- a/arch/arm/mach-uniphier/sg-regs.h
+++ b/arch/arm/mach-uniphier/sg-regs.h
@@ -126,6 +126,14 @@ static inline void sg_set_iectrl(unsigned pin)
        writel(tmp, reg);
 }
 
+static inline void sg_set_iectrl_range(unsigned min, unsigned max)
+{
+       int i;
+
+       for (i = min; i <= max; i++)
+               sg_set_iectrl(i);
+}
+
 #endif /* __ASSEMBLY__ */
 
 #endif /* ARCH_SG_REGS_H */