[PATCH 1/2] MIPS: OCTEON: Select ARCH_REQUIRE_GPIOLIB

[David Daney <ddaney.cavm-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

From: David Daney <david.daney-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org>

... and create asm/mach-cavium-octeon/gpio.h so that things continue
to build.

This allows us to use the existing I2C connected GPIO expanders.

Signed-off-by: David Daney <david.daney-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org>
---
 arch/mips/Kconfig                               |    1 +
 arch/mips/include/asm/mach-cavium-octeon/gpio.h |   21 +++++++++++++++++++++
 2 files changed, 22 insertions(+), 0 deletions(-)
 create mode 100644 arch/mips/include/asm/mach-cavium-octeon/gpio.h

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index d0011ef..3134457 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -744,6 +744,7 @@ config CAVIUM_OCTEON_REFERENCE_BOARD
 	select USB_ARCH_HAS_OHCI
 	select USB_ARCH_HAS_EHCI
 	select HOLES_IN_ZONE
+	select ARCH_REQUIRE_GPIOLIB
 	help
 	  This option supports all of the Octeon reference boards from Cavium
 	  Networks. It builds a kernel that dynamically determines the Octeon
diff --git a/arch/mips/include/asm/mach-cavium-octeon/gpio.h b/arch/mips/include/asm/mach-cavium-octeon/gpio.h
new file mode 100644
index 0000000..34e9f7a
--- /dev/null
+++ b/arch/mips/include/asm/mach-cavium-octeon/gpio.h
@@ -0,0 +1,21 @@
+#ifndef __ASM_MACH_CAVIUM_OCTEON_GPIO_H
+#define __ASM_MACH_CAVIUM_OCTEON_GPIO_H
+
+#ifdef CONFIG_GPIOLIB
+#define gpio_get_value	__gpio_get_value
+#define gpio_set_value	__gpio_set_value
+#define gpio_cansleep	__gpio_cansleep
+#else
+int gpio_request(unsigned gpio, const char *label);
+void gpio_free(unsigned gpio);
+int gpio_direction_input(unsigned gpio);
+int gpio_direction_output(unsigned gpio, int value);
+int gpio_get_value(unsigned gpio);
+void gpio_set_value(unsigned gpio, int value);
+#endif
+
+#include <asm-generic/gpio.h>
+
+#define gpio_to_irq	__gpio_to_irq
+
+#endif /* __ASM_MACH_GENERIC_GPIO_H */
-- 
1.7.2.3