Re: [PATCH] Revert "spi: omap2-mcspi: Switch to readl_poll_timeout()"

[Mark Brown]

On Thu, 10 Sep 2020 17:56:24 +0530, Aswath Govindraju wrote:
> This reverts commit 13d515c796adc49a49b0cd2212ccd7f43a37fc5a.
> 
> The amount of time spent polling for the MCSPI_CHSTAT bits to be set on
> AM335x-icev2 platform is less than 1us (about 0.6us) in most cases, with
> or without using DMA. So, in most cases the function need not sleep.
> Also, setting the sleep_usecs to zero would not be optimal here because
> ktime_add_us() used in readl_poll_timeout() is slower compared to the
> direct addition used after the revert. So, it is sub-optimal to use
> readl_poll_timeout in this case.
> 
> [...]

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-next

Thanks!

[1/1] spi: omap2-mcspi: Improve performance waiting for CHSTAT
      commit: 7b1d96813317358312440d0d07abbfbeb0ef8d22

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
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Thanks,
Mark