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[0/5] Add support for VeriSilicon APB GPIO driver

Message ID 20250212-kernel-upstreaming-add_gpio_support-v1-0-080e724a21f3@blaize.com
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Series Add support for VeriSilicon APB GPIO driver | expand

Message

Nikolaos Pasaloukos Feb. 12, 2025, 1:46 p.m. UTC 
This patchset adds a GPIO driver for the VeriSilicon APB v0.2
hardware. This controller is used in the Blaize BLZP1600
SoC for its GPIO interface. It is essential for upstream
support of the SoC since it is used to provide signals for the
Ethernet, SD and many other interfaces.

It also adds VeriSilicon as a vendor prefix, devicetree
bindings for the controller and the driver itself.

Adds the GPIO interface to the Blaize BLZP1600 SoC devicetree
and includes it in the ARM generic kernel defconfig.

The hardware itself consists of 32 I/O pins. It has
programmable interrupt generation capability on the pins.
The interrupts can be edge or level triggered and it
includes a de-bounce circuit.

Signed-off-by: Nikolaos Pasaloukos <nikolaos.pasaloukos@blaize.com>
---
Nikolaos Pasaloukos (5):
      dt-bindings: Add VeriSilicon vendor prefix
      dt-bindings: Document VeriSilicon APB GPIO driver
      gpio: vsiapb: Add VeriSilicon APB support
      arm64: dts: blaize-blzp1600: Add VeriSilicon GPIO support
      arm64: defconfig: Add VeriSilicon GPIO driver

 .../devicetree/bindings/gpio/vsi,apb-gpio.yaml     |  83 ++++++
 .../devicetree/bindings/vendor-prefixes.yaml       |   2 +
 MAINTAINERS                                        |  10 +
 arch/arm64/boot/dts/blaize/blaize-blzp1600-cb2.dts |  36 +++
 arch/arm64/boot/dts/blaize/blaize-blzp1600.dtsi    |  12 +
 arch/arm64/configs/defconfig                       |   1 +
 drivers/gpio/Kconfig                               |   9 +
 drivers/gpio/Makefile                              |   1 +
 drivers/gpio/gpio-vsiapb.c                         | 284 +++++++++++++++++++++
 9 files changed, 438 insertions(+)
---
base-commit: 6d5039eb97a58be0817ee0f5956ec4d22047f42a
change-id: 20250117-kernel-upstreaming-add_gpio_support-b4ce05eff7a5

Best regards,