From: Jan Luebbe <jluebbe@debian.org>
To: barebox@lists.infradead.org
Subject: i2c bus recovery support
Date: Wed, 8 Jul 2015 15:29:14 +0200 [thread overview]
Message-ID: <1436362158-24488-1-git-send-email-jluebbe@debian.org> (raw)
This series ports the kernel's i2c bus recovery support to barebox.
Bus recovery is necessary when a slave device pulls the SDA line low because it
is in a wrong state. The fix is to toggle the SCL line, which move the slaves
into the idle state. Using the same structure and callbacks as the kernel makes
it easy to port the per-driver code to barebox.
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next reply other threads:[~2015-07-08 13:29 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-08 13:29 Jan Luebbe [this message]
2015-07-08 13:29 ` [PATCH 1/4] i2c: add bus recovery infrastructure Jan Luebbe
2015-07-13 6:47 ` Sascha Hauer
2015-07-08 13:29 ` [PATCH 2/4] i2c: only use set_scl for recovery after calling prepare_recovery Jan Luebbe
2015-07-08 13:29 ` [PATCH 3/4] i2c-omap: clear ARDY twice Jan Luebbe
2015-07-08 13:29 ` [PATCH 4/4] i2c-omap: add bus recovery support Jan Luebbe
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