From: Mike Ditto <mditto@consentry.com>
To: Jochen Friedrich <jochen@scram.de>
Cc: linuxppc-dev@ozlabs.org, i2c@lm-sensors.org,
David Gibson <david@gibson.dropbear.id.au>
Subject: Re: [PATCH] i2c-cpm: Add flexibility for I2C clock frequency and filter.
Date: Fri, 31 Oct 2008 14:19:46 -0700 [thread overview]
Message-ID: <490B7672.3040904@consentry.com> (raw)
In-Reply-To: <490AEEBF.9000707@scram.de>
Jochen Friedrich wrote:
> What needs to be done though is to document this change in
> Documentation/powerpc/dts-bindings/fsl/cpm_qe/cpm/i2c.txt.
How about the below?
I'll wait for David to comment on the property name and for any suggestions
on the documentation below, then I'll submit a new patch.
--- linux/Documentation/powerpc/dts-bindings/fsl/cpm_qe/cpm/i2c.txt 11 Oct 2008 02:49:31 -0000 1.1.1.1
+++ linux/Documentation/powerpc/dts-bindings/fsl/cpm_qe/cpm/i2c.txt 31 Oct 2008 21:15:06 -0000
@@ -10,8 +10,12 @@
- #address-cells : Should be one. The cell is the i2c device address with
the r/w bit set to zero.
- #size-cells : Should be zero.
-- clock-frequency : Can be used to set the i2c clock frequency. If
- unspecified, a default frequency of 60kHz is being used.
+- clock-frequency : Can be used to set the desired i2c clock frequency (in Hz).
+ If unspecified, a default of 60 kHz is being used. The actual frequency may
+ be somewhat higher than this value, depending on how the BRG_CLK and dividers
+ work out.
+- clock-filter : boolean; if defined, indicates that this controller
+ should enable the SCL digital filter.
The following two properties are deprecated. They are only used by legacy
i2c drivers to find the bus to probe:
- linux,i2c-index : Can be used to hard code an i2c bus number. By default,
next prev parent reply other threads:[~2008-10-31 21:19 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-31 4:09 [PATCH] i2c-cpm: Add flexibility for I2C clock frequency and filter Mike Ditto
2008-10-31 11:40 ` Jochen Friedrich
2008-10-31 21:19 ` Mike Ditto [this message]
2008-10-31 21:22 ` Mike Ditto
2008-11-05 23:36 ` David Gibson
2008-11-06 0:35 ` Mike Ditto
2008-11-06 0:53 ` David Gibson
2008-11-06 1:12 ` Mike Ditto
-- strict thread matches above, loose matches on Subject: below --
2008-10-31 4:13 Mike Ditto
2008-11-06 1:55 Mike Ditto
2008-11-06 11:27 ` Jochen Friedrich
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