On Thu, Oct 01, 2015 at 12:38:07PM -0400, j...@ringle.org wrote: > From: Jon Ringle <jrin...@gridpoint.com> > > This commit allows installing a custom reg_update_bits function for cases > where > the hardware provides a mechanism to set or clear register bits without a > read/modify/write cycle. Such is the case with the Microchip ENCX24J600.
Thanks, I've applied this. I'll extend it so that individual devices
can do this as well - I've not looked at your driver but it might be
that this is a better option than regmap_bus for your driver (but both
are supported so meh). Dave, I've tagged the commit and there's a pull
request for this below:
The following changes since commit 6ff33f3902c3b1c5d0db6b1e2c70b6d76fba357f:
Linux 4.3-rc1 (2015-09-12 16:35:56 -0700)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap.git
tags/regmap-offload-update-bits
for you to fetch changes up to 77792b11409c9270d98e604b4314b85ce886ac7d:
regmap: Allow installing custom reg_update_bits function (2015-10-06 16:12:34
+0100)
----------------------------------------------------------------
regmap: Allow buses to provide a custom update_bits() operation
Some buses provide a native _update_bits() operation which for uncached
registers is faster than doing a read/modify/write cycle as it is a
single bus transaction. Add support for implementing this to regmap.
----------------------------------------------------------------
Jon Ringle (1):
regmap: Allow installing custom reg_update_bits function
drivers/base/regmap/internal.h | 2 ++
drivers/base/regmap/regmap.c | 29 ++++++++++++++++++-----------
include/linux/regmap.h | 3 +++
3 files changed, 23 insertions(+), 11 deletions(-)
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