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[0/2] spi: ar934x: fix transfer size and delays

Message ID 20211222055958.1383233-1-oskari@lemmela.net (mailing list archive)
Headers show
Series spi: ar934x: fix transfer size and delays | expand

Message

Oskari Lemmelä Dec. 22, 2021, 5:59 a.m. UTC 
Some of slow SPI devices can not handle 32 bits transfers or need
delay between words/transfers.

Series is tested with ATSAMD20J15 slave device which is running @8Mhz.
Limiting bits per word to 16 bits and adding delay between transfers,
gives slave device enough extra time to process reply.

Oskari Lemmela (2):
  spi: ar934x: fix transfer size
  spi: ar934x: fix transfer and word delays

 drivers/spi/spi-ar934x.c | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

Comments

Mark Brown Dec. 22, 2021, 2:04 p.m. UTC | #1 
On Wed, 22 Dec 2021 07:59:56 +0200, Oskari Lemmela wrote:
> Some of slow SPI devices can not handle 32 bits transfers or need
> delay between words/transfers.
> 
> Series is tested with ATSAMD20J15 slave device which is running @8Mhz.
> Limiting bits per word to 16 bits and adding delay between transfers,
> gives slave device enough extra time to process reply.
> 
> [...]

Applied to

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

Thanks!

[2/2] spi: ar934x: fix transfer and word delays
      commit: c70282457c380db7deb57c81a6894debc8f88efa

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
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark
Mark Brown Jan. 4, 2022, 4:02 p.m. UTC | #2 
On Wed, 22 Dec 2021 07:59:56 +0200, Oskari Lemmela wrote:
> Some of slow SPI devices can not handle 32 bits transfers or need
> delay between words/transfers.
> 
> Series is tested with ATSAMD20J15 slave device which is running @8Mhz.
> Limiting bits per word to 16 bits and adding delay between transfers,
> gives slave device enough extra time to process reply.
> 
> [...]

Applied to

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

Thanks!

[1/2] spi: ar934x: fix transfer size
      commit: ebe33e5a98dcf14a9630845f3f10c193584ac054

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
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark