[PATCH v2] i2c: cadence: Avoid fifo clear after start
Andi Shyti
andi.shyti at kernel.org
Fri May 3 11:46:26 PDT 2024
Hi Sai Pavan,
On Fri, May 03, 2024 at 03:12:08PM +0530, Sai Pavan Boddu wrote:
> The Driver unintentionally programs ctrl reg to clear the fifo, which
> happens after the start of transaction. Previously, this was not an issue
> as it involved read-modified-write. However, this issue breaks i2c reads
> on QEMU, as i2c-read is executed before guest starts programming control
> register.
>
> Fixes: ff0cf7bca630 ("i2c: cadence: Remove unnecessary register reads")
> Signed-off-by: Sai Pavan Boddu <sai.pavan.boddu at amd.com>
> Acked-by: Michal Simek <michal.simek at amd.com>
pushed to i2c/i2c-host-fixes.
I will send it for pull request next week as this week is already
too late and I want to see a few rounds of tests before asking
Wolfram to take it.
Thanks,
Andi
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