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authorDavid S. Miller <davem@davemloft.net>2008-08-20 23:03:24 -0700
committerDavid S. Miller <davem@davemloft.net>2008-08-24 20:33:56 -0700
commit15df0f3302fdecaa97da0b95d72b3a9a59be8692 (patch)
treebafd5996a7f88b07954fdd1408559c1537bc85b4 /arch/sparc
parent44266215e3c8209613cea014721015113b7cd2d9 (diff)
downloadop-kernel-dev-15df0f3302fdecaa97da0b95d72b3a9a59be8692.zip
op-kernel-dev-15df0f3302fdecaa97da0b95d72b3a9a59be8692.tar.gz
sparc: Add GPIO layer support.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc')
-rw-r--r--arch/sparc/Kconfig6
-rw-r--r--arch/sparc/include/asm/gpio.h36
2 files changed, 42 insertions, 0 deletions
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index a214002..cb1dd35 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -20,6 +20,11 @@ config GENERIC_ISA_DMA
bool
default y
+config GENERIC_GPIO
+ bool
+ help
+ Generic GPIO API support
+
config ARCH_NO_VIRT_TO_BUS
def_bool y
@@ -69,6 +74,7 @@ config SPARC
select HAVE_OPROFILE
select HAVE_ARCH_KGDB if !SMP
select HAVE_ARCH_TRACEHOOK
+ select ARCH_WANT_OPTIONAL_GPIOLIB
# Identify this as a Sparc32 build
config SPARC32
diff --git a/arch/sparc/include/asm/gpio.h b/arch/sparc/include/asm/gpio.h
new file mode 100644
index 0000000..a0e3ac0
--- /dev/null
+++ b/arch/sparc/include/asm/gpio.h
@@ -0,0 +1,36 @@
+#ifndef __ASM_SPARC_GPIO_H
+#define __ASM_SPARC_GPIO_H
+
+#include <linux/errno.h>
+#include <asm-generic/gpio.h>
+
+#ifdef CONFIG_GPIOLIB
+
+static inline int gpio_get_value(unsigned int gpio)
+{
+ return __gpio_get_value(gpio);
+}
+
+static inline void gpio_set_value(unsigned int gpio, int value)
+{
+ __gpio_set_value(gpio, value);
+}
+
+static inline int gpio_cansleep(unsigned int gpio)
+{
+ return __gpio_cansleep(gpio);
+}
+
+static inline int gpio_to_irq(unsigned int gpio)
+{
+ return -ENOSYS;
+}
+
+static inline int irq_to_gpio(unsigned int irq)
+{
+ return -EINVAL;
+}
+
+#endif /* CONFIG_GPIOLIB */
+
+#endif /* __ASM_SPARC_GPIO_H */
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