From 0c36ec31473593aa937ff04f3b3b630e81512734 Mon Sep 17 00:00:00 2001 From: Juergen Beisert Date: Mon, 21 Jul 2008 14:21:34 -0700 Subject: 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 Signed-off-by: Guennadi Liakhovetski Cc: Russell King Signed-off-by: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/gpio/Kconfig | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers/gpio/Kconfig') diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index 008c38ba774..9e0c4fbfc51 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -69,6 +69,12 @@ config GPIO_PCF857X comment "SPI GPIO expanders:" +config GPIO_MAX7301 + tristate "Maxim MAX7301 GPIO expander" + depends on SPI_MASTER + help + gpio driver for Maxim MAX7301 SPI GPIO expander. + config GPIO_MCP23S08 tristate "Microchip MCP23S08 I/O expander" depends on SPI_MASTER -- cgit v1.2.3