linux-toradex.git/drivers/rtc/rtc-v3020.c, branch v2.6.32.15

rtc: v3020: fix v3020_mmio_read_bit()

2009-11-12T15:25:59+00:00

v3020_mmio_read_bit() always returns 0 when left_shift > 7.

v3020_mmio_read_bit()'s return type is (unsigned char).  The code returns
a value masked by (1 << left_shift) that is casted to the return type.  If
left_shift is larger than 7, the cast will always result in a 0 return
value.  The problem was discovered with left_shift = 16, and the included
patch corrects the problem.

The bug was introduced in the last (Apr 3 2009) commit of the file, kernel
versions 2.6.30 and later.

Cc: Alessandro Zummo 
Cc: Paul Gortmaker 
Cc: Raphael Assenat 
Cc: 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

rtc-v3020: add ability to access v3020 chip with GPIOs

2009-04-03T02:04:51+00:00

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

rtc-v3020: coding style cleanup

2009-04-01T15:59:26+00:00

Signed-off-by: Mike Rapoport 
Acked-by: Alessandro Zummo 
Cc: David Brownell 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

drivers/rtc/: use bcd2bin/bin2bcd

2008-10-20T15:52:41+00:00

Change drivers/rtc/ to use the new bcd2bin/bin2bcd functions instead of
the obsolete BCD_TO_BIN/BIN_TO_BCD/BCD2BIN/BIN2BCD macros.

Signed-off-by: Adrian Bunk 
Acked-by: Alessandro Zummo 
Cc: David Brownell 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

rtc: replace remaining FUNCTION occurrences

2008-04-28T15:58:17+00:00

__FUNCTION__ is gcc-specific, use __func__

Signed-off-by: Harvey Harrison 
Cc: David Brownell 
Cc: Alessandro Zummo 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

rtc: fix platform driver hotplug/coldplug

2008-04-11T15:06:44+00:00

Since 43cc71eed1250755986da4c0f9898f9a635cb3bf, the platform modalias is
prefixed with "platform:".  Add MODULE_ALIAS() to the hotpluggable RTC
platform drivers, to re-enable module auto loading.

[dbrownell@users.sourceforge.net: more drivers, minor fix]
Signed-off-by: Kay Sievers 
Signed-off-by: David Brownell 
Cc: Greg KH 
Cc: Alessandro Zummo 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

RTC v3020 fixes

2007-09-12T00:21:20+00:00

Fix off-by-one in month calculations
Add delay for bus accesses to satisfy Tw > 500ns

Signed-off-by: Mike Rapoport 
Acked-by: Raphael Assenat 
Cc: Alessandro Zummo 
Cc: David Brownell 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] rtc: fix printk of 64-bit res on 32-bit platform

2006-10-17T15:18:47+00:00

With 64-bit resources on 32-bit platforms, the resource address might be
larger than a void*.  Fix printk to work regardless of resource size.

Signed-off-by: Jeff Garzik 
Cc: Alessandro Zummo 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] constify rtc_class_ops: update drivers

2006-10-01T07:39:25+00:00

Update RTC framework so that drivers can constify their method tables, moving
them from ".data" to ".rodata".  Then update the drivers.

Signed-off-by: David Brownell 
Cc: Alessandro Zummo 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] Remove unnecessary check in drivers/rtc/rtc-v3020.c

2006-10-01T07:39:24+00:00

Looks like the probe function always gets a valid pdev, and checking it
after dereferencing it is pretty useless.  This patch removes the check
(cid #1365)

Signed-off-by: Eric Sesterhenn 
Cc: Alessandro Zummo 
Cc: Raphael Assenat 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds