summaryrefslogtreecommitdiffstats
path: root/include
diff options
context:
space:
mode:
authorMike Rapoport <mike@compulab.co.il>2009-04-02 16:57:01 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-04-02 19:04:51 -0700
commit96615841e170f0108832e64a90d51b469573a472 (patch)
treea815741cf06b44ac98ee3ac65ca8a546970c1a70 /include
parentc1c490e017b66b31f6559db9cbb51a3ce00cf639 (diff)
downloadop-kernel-dev-96615841e170f0108832e64a90d51b469573a472.zip
op-kernel-dev-96615841e170f0108832e64a90d51b469573a472.tar.gz
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 <mike@compulab.co.il> Acked-by: Alessandro Zummo <a.zummo@towertech.it> 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')
-rw-r--r--include/linux/rtc-v3020.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/rtc-v3020.h b/include/linux/rtc-v3020.h
index bf74e63..8ba646e 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
OpenPOWER on IntegriCloud