From: Wolfram Sang <wsa@the-dreams.de>
To: linux-i2c@vger.kernel.org
Cc: Wolfram Sang <wsa@the-dreams.de>,
linux-sh@vger.kernel.org, Magnus Damm <magnus.damm@gmail.com>,
Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>,
Geert Uytterhoeven <geert@linux-m68k.org>
Subject: [PATCH 0/3] i2c: rcar: adapt PM usage to multi master case
Date: Wed, 23 Dec 2015 16:56:31 +0000 [thread overview]
Message-ID: <1450889794-9509-1-git-send-email-wsa@the-dreams.de> (raw)
If we are in a multi-master scenario, we need to block runtime PM so the
arbitration circuit stays awake.
So, we define a new binding and adapt the i2c-rcar driver to have an example
implementation.
Changes since RFC:
* added acks from Rob and Geert (thanks!)
* use of_property_read_bool() now instead of of_get_property (thanks Sergei)
* way more testing
Wolfram Sang (3):
i2c: document binding for multi-master case
i2c: rcar: remove macros dealing with flags
i2c: rcar: disable PM in multi-master mode
Documentation/devicetree/bindings/i2c/i2c.txt | 5 ++++
drivers/i2c/busses/i2c-rcar.c | 39 ++++++++++++++++-----------
2 files changed, 28 insertions(+), 16 deletions(-)
--
2.1.4
next reply other threads:[~2015-12-23 16:56 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-23 16:56 Wolfram Sang [this message]
2015-12-23 16:56 ` [PATCH 1/3] i2c: document binding for multi-master case Wolfram Sang
2015-12-23 16:56 ` [PATCH 2/3] i2c: rcar: remove macros dealing with flags Wolfram Sang
2015-12-23 16:56 ` [PATCH 3/3] i2c: rcar: disable PM in multi-master mode Wolfram Sang
2016-01-02 21:15 ` [PATCH 0/3] i2c: rcar: adapt PM usage to multi master case Wolfram Sang
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