Re: [PATCH 5.4.33 0/2] Fix for long operation cmds busy detection

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On 4/24/20 6:45 PM, Sasha Levin wrote:
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On Fri, Apr 24, 2020 at 01:06:04PM -0700, Sowjanya Komatineni wrote:
This series is to backport the upstream patches that fixes busy detection
for long operation mmc commands by implementing Tegra specific timeout
callback to switch between finite and infinite HW busy detection wait
modes.


Sowjanya Komatineni (2):
 sdhci: tegra: Implement Tegra specific set_timeout callback
 sdhci: tegra: Enable MMC_CAP_WAIT_WHILE_BUSY host capability

What regression do these patches fix?

This isn't a regression as we don't have any known failures as of today with the specific mmc devices we are using on our platforms.

But this patch fixes a long outstanding bug for sdhci-tegra to handle long busy wait for mmc command operations that may take longer than host max busy timeout. So, this is something that's missing from the beginning and good to have.


--
Thanks,
Sasha




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