From 96615841e170f0108832e64a90d51b469573a472 Mon Sep 17 00:00:00 2001 From: Mike Rapoport Date: Thu, 2 Apr 2009 16:57:01 -0700 Subject: rtc-v3020: add ability to access v3020 chip with GPIOs The v3020 RTC can be connected to GPIOs as well as to memory-like interface. Add ability to use GPIO bit-bang for v3020 read-write access. [akpm@linux-foundation.org: fix off-by-one in error path] Signed-off-by: Mike Rapoport Acked-by: Alessandro Zummo Cc: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/rtc-v3020.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/linux/rtc-v3020.h') diff --git a/include/linux/rtc-v3020.h b/include/linux/rtc-v3020.h index bf74e63c98fe..8ba646e610d9 100644 --- a/include/linux/rtc-v3020.h +++ b/include/linux/rtc-v3020.h @@ -14,6 +14,12 @@ * is used depends on the board. */ struct v3020_platform_data { int leftshift; /* (1<<(leftshift)) & readl() */ + + int use_gpio:1; + unsigned int gpio_cs; + unsigned int gpio_wr; + unsigned int gpio_rd; + unsigned int gpio_io; }; #define V3020_STATUS_0 0x00 -- cgit v1.2.3-59-g8ed1b