Hi, This is Mediatek MT8173 Command Queue(CMDQ) driver. The CMDQ is used to help write registers with critical time limitation, such as updating display configuration during the vblank. It controls Global Command Engine (GCE) hardware to achieve this requirement. These patches have a build dependency on top of v4.7-rc1. Changes since v8: - use mailbox framework, and merge options for GCE thread into mailbox channel - use timer to handle timeout case - rename cmdq_handle_error_done to cmdq_thread_irq_handler, handle error by cmdq_task_handle_error, and handle timeout by cmdq_thread_handle_timeout - use bitops - fix bug of treating working task as done task - move GCE hardware events' mapping from header to driver - remove code about previous tasks since we should keep tasks' order for display, and it is impossible to have previous tasks - centralize code to handle executed tasks in cmdq_task_exec_done - use u64* instead of u32* for GCE command pointer - drop cmdq_thread_readl/writel - depends on ARM64 - refine some code accroding to comments for v8 Best regards, HS Liao HS Liao (4): dt-bindings: soc: Add documentation for the MediaTek GCE unit CMDQ: Mediatek CMDQ driver arm64: dts: mt8173: Add GCE node CMDQ: save more energy in idle .../devicetree/bindings/soc/mediatek/gce.txt | 44 + arch/arm64/boot/dts/mediatek/mt8173.dtsi | 10 + drivers/soc/mediatek/Kconfig | 11 + drivers/soc/mediatek/Makefile | 1 + drivers/soc/mediatek/mtk-cmdq.c | 967 +++++++++++++++++++++ include/soc/mediatek/cmdq.h | 192 ++++ 6 files changed, 1225 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/mediatek/gce.txt create mode 100644 drivers/soc/mediatek/mtk-cmdq.c create mode 100644 include/soc/mediatek/cmdq.h -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
