mbox series

[0/8] spi: Introduce spi-cs-setup-ns dt property

Message ID 20221117105249.115649-1-tudor.ambarus@microchip.com
Headers
Series spi: Introduce spi-cs-setup-ns dt property |

Message

Tudor Ambarus Nov. 17, 2022, 10:52 a.m. UTC 
  SPI NOR flashes have specific cs-setup time requirements without which
they can't work at frequencies close to their maximum supported frequency,
as they miss the first bits of the instruction command. Unrecognized
commands are ignored, thus the flash will be unresponsive. Introduce the
spi-cs-setup-ns property to allow spi devices to specify their cs setup
time.

Tudor Ambarus (8):
  spi: dt-bindings: Introduce spi-cs-setup-ns property
  spi: Introduce spi-cs-setup-ns property
  spi: Reintroduce spi_set_cs_timing()
  spi: atmel-quadspi: Add support for configuring CS timing
  ARM: dts: at91-sama5d27_wlsom1: Set sst26vf064b SPI NOR flash at its
    maximum frequency
  ARM: dts: at91-sama5d27_som1: Set sst26vf064b SPI NOR flash at its
    maximum frequency
  ARM: dts: at91: sama5d2_icp: Set sst26vf064b SPI NOR flash at its
    maximum frequency
  ARM: dts: at91: sam9x60ek: Set sst26vf064b SPI NOR flash at its
    maximum frequency

 .../bindings/spi/spi-peripheral-props.yaml    |  5 +++
 arch/arm/boot/dts/at91-sam9x60ek.dts          |  3 +-
 arch/arm/boot/dts/at91-sama5d27_som1.dtsi     |  3 +-
 arch/arm/boot/dts/at91-sama5d27_wlsom1.dtsi   |  3 +-
 arch/arm/boot/dts/at91-sama5d2_icp.dts        |  3 +-
 drivers/spi/atmel-quadspi.c                   | 34 +++++++++++++++
 drivers/spi/spi.c                             | 43 +++++++++++++++++++
 7 files changed, 90 insertions(+), 4 deletions(-)

Comments

Mark Brown Nov. 18, 2022, 2:04 p.m. UTC | #1 
On Thu, 17 Nov 2022 12:52:41 +0200, Tudor Ambarus wrote:
> SPI NOR flashes have specific cs-setup time requirements without which
> they can't work at frequencies close to their maximum supported frequency,
> as they miss the first bits of the instruction command. Unrecognized
> commands are ignored, thus the flash will be unresponsive. Introduce the
> spi-cs-setup-ns property to allow spi devices to specify their cs setup
> time.
> 
> [...]

Applied to

   broonie/spi.git for-next

Thanks!

[1/8] spi: dt-bindings: Introduce spi-cs-setup-ns property
      commit: f6c911f3308c1cfb97ae1da6654080d7104e2df2
[2/8] spi: Introduce spi-cs-setup-ns property
      commit: 33a2fde5f77bd744b8bd0c694bc173cc968e55a5
[3/8] spi: Reintroduce spi_set_cs_timing()
      commit: 684a47847ae639689e7b823251975348a8e5434f
[4/8] spi: atmel-quadspi: Add support for configuring CS timing
      commit: f732646d0ccd22f42ed7de5e59c0abb7a848e034

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