[PATCH v2 0/6] Add Aspeed G7 sgpio support
From: Billy Tsai <hidden>
Date: 2026-01-23 09:26:31
Also in:
linux-aspeed, linux-devicetree, linux-gpio, lkml
The Aspeed 7th generation SoC features two SGPIO master controllers: both with 256 serial inputs and outputs. The main difference from the previous generation is that the control logic has been updated to support per-pin control, allowing each pin to have its own 32-bit register for configuring value, interrupt type, and more. This patch serial also add low-level operations (llops) to abstract the register access for SGPIO registers making it easier to extend the driver to support different hardware register layouts. Signed-off-by: Billy Tsai <redacted> --- Changes in v2: - Split the IRQ-related llops conversion into a separate patch to keep changes logically scoped. - Minimized unrelated changes (such as variable renaming) to reduce diff noise and ease review. - Clarified the llops design intent and semantics. - Link to v1: https://lore.kernel.org/r/20260117-upstream_sgpio-v1-0-850ef3ffb680@aspeedtech.com (local) --- Billy Tsai (6): gpio: aspeed-sgpio: Change the macro to support deferred probe gpio: aspeed-sgpio: Remove unused bank name field gpio: aspeed-sgpio: Create llops to handle hardware access gpio: aspeed-sgpio: Convert IRQ functions to use llops callbacks dt-bindings: gpio: aspeed,sgpio: Support ast2700 gpio: aspeed-sgpio: Support G7 Aspeed sgpiom controller .../devicetree/bindings/gpio/aspeed,sgpio.yaml | 4 +- drivers/gpio/gpio-aspeed-sgpio.c | 362 +++++++++++++-------- 2 files changed, 227 insertions(+), 139 deletions(-) --- base-commit: 39d3389331abd712461f50249722f7ed9d815068 change-id: 20251223-upstream_sgpio-70d815c64a19 Best regards, -- Billy Tsai [off-list ref]