sparc: Add GPIO layer support.

Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index a214002114ed90b0f8924c6837cbfcc622af737c..cb1dd356b278ae9430f797ab36caf4daa2c87657 100644 (file)
--- 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 (file)
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 */

diff --git a/arch/sparc64/Kconfig b/arch/sparc64/Kconfig
index 923a98959fa7349930efa343a4ab1febd4d5b05f..489b6912fa0926dc2590f12183541addeadaf5d2 100644 (file)
--- a/arch/sparc64/Kconfig
+++ b/arch/sparc64/Kconfig
@@ -18,6 +18,7 @@ config SPARC64
        select HAVE_ARCH_KGDB
        select USE_GENERIC_SMP_HELPERS if SMP
        select HAVE_ARCH_TRACEHOOK
+       select ARCH_WANT_OPTIONAL_GPIOLIB
 
 config GENERIC_TIME
        bool
@@ -31,6 +32,11 @@ config GENERIC_CLOCKEVENTS
        bool
        default y
 
+config GENERIC_GPIO
+       bool
+       help
+         Generic GPIO API support
+
 config 64BIT
        def_bool y