[U-Boot] [PATCH v4 06/13] ARM: uniphier: add sg_set_iectrl_range()

[Masahiro Yamada]

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 <yamada.masahiro at socionext.com>
---

Changes in v4: None
Changes in v3: None
Changes in v2: None

 arch/arm/mach-uniphier/sg-regs.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm/mach-uniphier/sg-regs.h b/arch/arm/mach-uniphier/sg-regs.h
index 2cdc2db..4044245 100644
--- 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 */
-- 
1.9.1