Hi David, On Tue, Sep 23, 2014 at 11:40:26AM -0700, David E. Box wrote: > This patch implements an I2C bus sharing mechanism between the host and platform > hardware on select Intel BayTrail SoC platforms using the X-Powers AXP288 PMIC. > > On these platforms access to the PMIC must be shared with platform hardware. The > hardware unit assumes full control of the I2C bus and the host must request > access through a special semaphore. Hardware control of the bus also makes it > necessary to disable runtime pm to avoid interfering with hardware transactions. > > Signed-off-by: David E. Box <david.e.box@xxxxxxxxxxxxxxx> Sorry for stepping in like this without really knowing your platform, but wouldn't using the hwspinlock framework make more sense than hardcoding your own internal functions here? Thanks, Maxime -- Maxime Ripard, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com
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