Re: spi: stm32-qspi: Always wait BUSY bit to be cleared in stm32_qspi_wait_cmd()
From: Mark Brown
Date: Thu Jun 03 2021 - 14:42:23 EST
On Thu, 3 Jun 2021 09:34:21 +0200, patrice.chotard@xxxxxxxxxxx wrote:
> In U-boot side, an issue has been encountered when QSPI source clock is
> running at low frequency (24 MHz for example), waiting for TCF bit to be
> set didn't ensure that all data has been send out the FIFO, we should also
> wait that BUSY bit is cleared.
>
> To prevent similar issue in kernel driver, we implement similar behavior
> by always waiting BUSY bit to be cleared.
Applied to
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-next
Thanks!
[1/1] spi: stm32-qspi: Always wait BUSY bit to be cleared in stm32_qspi_wait_cmd()
commit: d38fa9a155b2829b7e2cfcf8a4171b6dd3672808
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.
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Thanks,
Mark