GPIO: Add support for GPIO on CLPS711X-target platform
The CLPS711X CPUs provide some GPIOs for use in the system. This
driver provides support for these via gpiolib. Due to platform
limitations, driver does not support interrupts, only inputs and
outputs.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 73067ef..f456cf4 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -364,6 +364,7 @@
config ARCH_CLPS711X
bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
+ select ARCH_REQUIRE_GPIOLIB
select ARCH_USES_GETTIMEOFFSET
select CLKDEV_LOOKUP
select COMMON_CLK
diff --git a/arch/arm/mach-clps711x/include/mach/gpio.h b/arch/arm/mach-clps711x/include/mach/gpio.h
new file mode 100644
index 0000000..8ac6889
--- /dev/null
+++ b/arch/arm/mach-clps711x/include/mach/gpio.h
@@ -0,0 +1,13 @@
+/*
+ * This file contains the CLPS711X GPIO definitions.
+ *
+ * Copyright (C) 2012 Alexander Shiyan <shc_work@mail.ru>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+/* Simple helper for convert port & pin to GPIO number */
+#define CLPS711X_GPIO(port, bit) ((port) * 8 + (bit))