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| author | Vignesh R <vigneshr@ti.com> | 2015-09-14 19:54:33 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-10-05 05:47:09 +0200 |
| commit | e93762bbf68143594223024532fdeef71f5e8f75 (patch) | |
| tree | 3d3a334353e7131a5a3777a586a9dfc4cf35a537 /Documentation/w1 | |
| parent | drivers/w1/w1_int.c: call put_device if device_register fails (diff) | |
| download | linux-e93762bbf68143594223024532fdeef71f5e8f75.tar.xz linux-e93762bbf68143594223024532fdeef71f5e8f75.zip | |
w1: masters: omap_hdq: add support for 1-wire mode
This patches makes following changes to omap_hdq driver
- Enable 1-wire mode.
- Implement w1_triplet callback to facilitate search rom
procedure and auto detection of 1-wire slaves.
- Proper enabling and disabling of interrupt.
- Cleanups (formatting and return value checks).
HDQ mode remains unchanged.
Signed-off-by: Vignesh R <vigneshr@ti.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Cc: Jonathan Corbet <corbet@lwn.net>
CC: Tony Lindgren <tony@atomide.com>
Cc: Vignesh R <vigneshr@ti.com>
Cc: NeilBrown <neilb@suse.de>
Cc: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/w1')
| -rw-r--r-- | Documentation/w1/masters/omap-hdq | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/w1/masters/omap-hdq b/Documentation/w1/masters/omap-hdq index 884dc284b215..234522709a5f 100644 --- a/Documentation/w1/masters/omap-hdq +++ b/Documentation/w1/masters/omap-hdq @@ -44,3 +44,9 @@ e.g: insmod omap_hdq.ko W1_ID=2 inamod w1_bq27000.ko F_ID=2 +The driver also supports 1-wire mode. In this mode, there is no need to +pass slave ID as parameter. The driver will auto-detect slaves connected +to the bus using SEARCH_ROM procedure. 1-wire mode can be selected by +setting "ti,mode" property to "1w" in DT (see +Documentation/devicetree/bindings/w1/omap-hdq.txt for more details). +By default driver is in HDQ mode. |