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authorJiri Kosina <jkosina@suse.cz>2012-10-28 19:28:52 +0100
committerJiri Kosina <jkosina@suse.cz>2012-10-28 19:29:19 +0100
commit3bd7bf1f0fe14f591c089ae61bbfa9bd356f178a (patch)
tree0058693cc9e70b7461dae551f8a19aff2efd13ca /arch/arm/mach-shmobile/sh-gpio.h
parentf16f84937d769c893492160b1a8c3672e3992beb (diff)
parente657e078d3dfa9f96976db7a2b5fd7d7c9f1f1a6 (diff)
downloadop-kernel-dev-3bd7bf1f0fe14f591c089ae61bbfa9bd356f178a.zip
op-kernel-dev-3bd7bf1f0fe14f591c089ae61bbfa9bd356f178a.tar.gz
Merge branch 'master' into for-next
Sync up with Linus' tree to be able to apply Cesar's patch against newer version of the code. Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'arch/arm/mach-shmobile/sh-gpio.h')
-rw-r--r--arch/arm/mach-shmobile/sh-gpio.h48
1 files changed, 48 insertions, 0 deletions
diff --git a/arch/arm/mach-shmobile/sh-gpio.h b/arch/arm/mach-shmobile/sh-gpio.h
new file mode 100644
index 0000000..e834763
--- /dev/null
+++ b/arch/arm/mach-shmobile/sh-gpio.h
@@ -0,0 +1,48 @@
+/*
+ * Generic GPIO API and pinmux table support
+ *
+ * Copyright (c) 2008 Magnus Damm
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#ifndef __ASM_ARCH_GPIO_H
+#define __ASM_ARCH_GPIO_H
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/io.h>
+
+/*
+ * FIXME !!
+ *
+ * current gpio frame work doesn't have
+ * the method to control only pull up/down/free.
+ * this function should be replaced by correct gpio function
+ */
+static inline void __init gpio_direction_none(void __iomem * addr)
+{
+ __raw_writeb(0x00, addr);
+}
+
+static inline void __init gpio_request_pullup(void __iomem * addr)
+{
+ u8 data = __raw_readb(addr);
+
+ data &= 0x0F;
+ data |= 0xC0;
+ __raw_writeb(data, addr);
+}
+
+static inline void __init gpio_request_pulldown(void __iomem * addr)
+{
+ u8 data = __raw_readb(addr);
+
+ data &= 0x0F;
+ data |= 0xA0;
+
+ __raw_writeb(data, addr);
+}
+
+#endif /* __ASM_ARCH_GPIO_H */
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