ACK: [SRU][F:linux-bluefield][PATCH v4 0/1] UBUNTU: SAUCE: i2c-mlxbf.c: support lock mechanism

[Zachary Tahenakos]

Acked-by: Zachary Tahenakos <zachary.tahenakos at canonical.com>

On Thu, Jul 21, 2022 at 10:06 AM Asmaa Mnebhi <asmaa at nvidia.com> wrote:

> Buglink: https://bugs.launchpad.net/bugs/1981105
>
> SRU Justification:
>
> [Impact]
>
> Support the I2C lock mechanism, otherwise there could be unexpected
> behavior when an i2c bus is accessed by several entities like the linux
> driver, ATF driver and UEFI driver. Make sure to pick up the ATF/UEFI image
> to accompany this change
> because at boot time ATF will ensure that the lock is released.
>
> [Fix]
>
> * Support lock and unlock
> * replace ioremap_nocache with ioremap
>
> [Test Case]
>
> * Make sure the i2c-mlxbf.c driver is loaded and /dev/i2c-1 is created
> * check that ipmitool from the BF->BMC and from the BMC->BF work (this
> only applies on boards with a BMC of course)
>
> [Regression Potential]
>
> Any of the test cases above could be impacted due to these changes.
> Make sure you load the latest ATF/UEFI image to accompany this change.
>
> --
> kernel-team mailing list
> kernel-team at lists.ubuntu.com
> https://lists.ubuntu.com/mailman/listinfo/kernel-team
>
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