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authorRichard Röjfors <richard.rojfors@mocean-labs.com>2009-12-15 16:46:18 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-16 07:20:00 -0800
commit35570ac6039ef490b9c5abde1fee4803a39bf4e1 (patch)
tree59b743b2ff1b1e054fa83b91d5c0c83be98e3cfc /include/linux/timb_gpio.h
parent4efec6272e8e61fc77132b4d2bae56d61b289956 (diff)
downloadlwn-35570ac6039ef490b9c5abde1fee4803a39bf4e1.tar.gz
lwn-35570ac6039ef490b9c5abde1fee4803a39bf4e1.zip
gpio: add GPIO driver for the Timberdale FPGA
A GPIO driver for the Timberdale FPGA found on the Intel Atom board Russellville. The GPIO driver also has an IRQ-chip to support interrupts on the pins. Signed-off-by: Richard Röjfors <richard.rojfors@mocean-labs.com> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/timb_gpio.h')
-rw-r--r--include/linux/timb_gpio.h37
1 files changed, 37 insertions, 0 deletions
diff --git a/include/linux/timb_gpio.h b/include/linux/timb_gpio.h
new file mode 100644
index 000000000000..ce456eaae861
--- /dev/null
+++ b/include/linux/timb_gpio.h
@@ -0,0 +1,37 @@
+/*
+ * timb_gpio.h timberdale FPGA GPIO driver, platform data definition
+ * Copyright (c) 2009 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef _LINUX_TIMB_GPIO_H
+#define _LINUX_TIMB_GPIO_H
+
+/**
+ * struct timbgpio_platform_data - Platform data of the Timberdale GPIO driver
+ * @gpio_base The number of the first GPIO pin, set to -1 for
+ * dynamic number allocation.
+ * @nr_pins Number of pins that is supported by the hardware (1-32)
+ * @irq_base If IRQ is supported by the hardware, this is the base
+ * number of IRQ:s. One IRQ per pin will be used. Set to
+ * -1 if IRQ:s is not supported.
+ */
+struct timbgpio_platform_data {
+ int gpio_base;
+ int nr_pins;
+ int irq_base;
+};
+
+#endif