On Mon, 21 Jun 2021 19:53:54 +0200, Sebastian Reichel wrote: > The PPD has a secondary processor (NXP Kinetis K20), which can be > programmed from the main system. It is connected to the main processor > by having it's EzPort interface connected to the SPI bus. Currently > both (normal and EzPort) interfaces are simply exposed to userspace. > This does not work for the EzPort, since EzPort usage requires a device > reset. The proper solution is to do the flashing from kernel space > with properly timed toggling of EzPort chip-select and reset line. In > PATCHv2 it was suggested, that this should happen via an SPI ancillary > device, so this is how it has been implemented now. > > [...] Applied to https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-next Thanks! [1/5] spi: add ancillary device support commit: 0c79378c01999bd60057c475f163ec807c24891f [2/5] spi: dt-bindings: support devices with multiple chipselects commit: d90609a4b72dbfe42da2a55f3078c35e669948e0 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
