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authorJuergen Beisert <j.beisert@pengutronix.de>2008-07-21 14:21:34 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-22 09:59:40 -0700
commit0c36ec31473593aa937ff04f3b3b630e81512734 (patch)
tree28afc1e7d6e0cf31f1ab2978a121e5f8cf504cc9 /include/linux
parent651910874633a75f4a726d44e449be0a56b4b2e0 (diff)
gpio: gpio driver for max7301 SPI GPIO expander
Maxim's MAX7301 is an SPI GPIO expander with 28 GPIOs. Note: MAX7301's interrupt feature is not supported yet. [akpm@linux-foundation.org: coding-style fixes] [g.liakhovetski@pengutronix.de: Fix inaccuracies in comments, check spi_setup() return code, mask off high byte in max7301_read()] Signed-off-by: Juergen Beisert <j.beisert@pengutronix.de> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@pengutronix.de> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/spi/max7301.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/spi/max7301.h b/include/linux/spi/max7301.h
new file mode 100644
index 00000000000..6dfd83f19b4
--- /dev/null
+++ b/include/linux/spi/max7301.h
@@ -0,0 +1,9 @@
+#ifndef LINUX_SPI_MAX7301_H
+#define LINUX_SPI_MAX7301_H
+
+struct max7301_platform_data {
+ /* number assigned to the first GPIO */
+ unsigned base;
+};
+
+#endif