[PATCH-RESEND 0/3] i2c: core/pxa: Add support for hardware lock
vaibhav.hiremath at linaro.org
Tue Jun 16 01:28:59 PDT 2015
On Wednesday 03 June 2015 12:15 AM, Vaibhav Hiremath wrote:
> To justify the need for hardware lock, lets take a real usecase scenario -
> In case of Marvell SoC, PXA910 silicon, both AP and CP are present and
> these two ARM cores are sharing one pair of I2C pins.
> In order to keep I2C transaction operated with atomic, hardware lock
> (RIPC) is required.
> This patch extends support for atomic operation by adding hardware lock support
> to the i2c-core.
> PATCH[1/3] : Core changes for hardware lock
> PATCH[2/3 & 3/3] : hardware lock support to i2c-pxa bus driver.
> Link to previous post:
> - DT node addition
> I am using PXA1928 based platform which is still not available
> in Mainline, so it is based on, below patch-series
> Link to Rob's patches:
> PMIC 88pm860 support
> Vaibhav Hiremath (3):
> i2c: core: append hardware lock with bus lock
> i2c: pxa: Add support for hardware lock
> i2c: pxa: Add pin ctrl support for CP core access
Any update on this patch-series?
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