Add bindings for A9 with some features, and driver for A9 base on A4.

Fix the incorrect keep_ss of the last descriptor.

Signed-off-by: Xianwei Zhao <xianwei.zhao@amlogic.com>
---
Changes in v3:
- Re-wrap binding commit msg and drop "amlogic,word-gap" property.
- Handle the hardware word gap through the existing word_delay mechanism in the transfer path instead.
- Link to v2: https://lore.kernel.org/r/20260723-a9-spisg-v2-0-9fc39106b7e2@amlogic.com

Changes in v2:
- Move the added properties defined to top-level and then reestrict them  in bindings.
- Fix some pre-exiting bug reported by Sashiko AI review that as a separate submission.
- Limit the value that will be writed to CFG_CS_HOLD.
- Link to v1: https://lore.kernel.org/r/20260717-a9-spisg-v1-0-2eeea77be19f@amlogic.com

---
Sunny Luo (1):
      spi: amlogic: spisg: Fix the incorrect keep_ss of the last descriptor

Xianwei Zhao (3):
      spi: dt-bindings: amlogic: spisg: Document A9-specific properties
      spi: amlogic: spisg: Fix transfer size limit and timeout handling
      spi: amlogic: spisg: Add support for A9 controller features

 .../devicetree/bindings/spi/amlogic,a4-spisg.yaml  | 30 ++++++-
 drivers/spi/spi-amlogic-spisg.c                    | 99 +++++++++++++++++++---
 2 files changed, 111 insertions(+), 18 deletions(-)
---
base-commit: d0b5dd16226814e5c73ba8daf88d3d91c990a38f
change-id: 20260715-a9-spisg-f19ce0403a50

Best regards,
-- 
Xianwei Zhao <xianwei.zhao@amlogic.com>

On Fri, 31 Jul 2026 09:08:24 +0000, Xianwei Zhao wrote:
> spi: add support for Amlogic A9
> 
> Add bindings for A9 with some features, and driver for A9 base on A4.
> 
> Fix the incorrect keep_ss of the last descriptor.
> 
> 
> [...]

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-7.4

Thanks!

[1/4] spi: dt-bindings: amlogic: spisg: Document A9-specific properties
      https://git.kernel.org/broonie/spi/c/29359ee126bd
[2/4] spi: amlogic: spisg: Fix transfer size limit and timeout handling
      https://git.kernel.org/broonie/spi/c/754d2bbd92f5
[3/4] spi: amlogic: spisg: Fix the incorrect keep_ss of the last descriptor
      https://git.kernel.org/broonie/spi/c/253dfb1839c6
[4/4] spi: amlogic: spisg: Add support for A9 controller features
      https://git.kernel.org/broonie/spi/c/b552119acd63

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