Hi, This series is version 2 of the code to introduce a wkup_m3_ipc driver to handle communication between the MPU and Cortex M3 present on TI AM335x and AM437x SoCs. v1 of this series can be found at [1]. Changes include: - Buildable as a module - Added am437x support - Various cleanups and fixes based on comments on v1 - Ability to use mailbox in noirq mode for cpuidle on am335x v2 contains an additional patch for the omap mailbox driver now to allow us to set ti,mbox-send-noirq for the wkup_m3 mailbox to allow us to support cpuidle on am335x. Although we can rely on interrupts during the suspend path, we must send a message during the cpuidle path from noirq context so we must have the ability to do this without using an interrupt, so we introduce the flag to indicate this. The patch has been included here with the wkup_m3_ipc patch so that the usage and context is clear. This series uses the wkup_m3_rproc driver which is merged as of v4.2-rc1, but the required dt nodes are not yet merged and can be found here [2]. A full branch containing all necessary PM code for both am335x and am437x has been pushed here [3] a big picture view of the plan for this series. This driver relies on the firmware at [4] being present in /lib/firmware in the rootfs or built in to the kernel. Regards, Dave [1] http://www.spinics.net/lists/arm-kernel/msg387990.html [2] http://www.spinics.net/lists/linux-omap/msg119973.html [3] https://github.com/dgerlach/linux-pm/tree/pm-v4.2-rc2-amx3-suspend [4] https://git.ti.com/ti-cm3-pm-firmware Dave Gerlach (3): mailbox/omap: Add ti,mbox-send-noirq quirk to fix AM33xx CPU Idle Documentation: dt: add bindings for TI Wakeup M3 IPC device soc: ti: Add wkup_m3_ipc driver .../devicetree/bindings/mailbox/omap-mailbox.txt | 8 + .../devicetree/bindings/soc/ti/wkup_m3_ipc.txt | 57 +++ drivers/mailbox/omap-mailbox.c | 49 ++- drivers/soc/ti/Kconfig | 10 + drivers/soc/ti/Makefile | 1 + drivers/soc/ti/wkup_m3_ipc.c | 486 +++++++++++++++++++++ include/linux/wkup_m3_ipc.h | 30 ++ 7 files changed, 637 insertions(+), 4 deletions(-) create mode 100644 Documentation/devicetree/bindings/soc/ti/wkup_m3_ipc.txt create mode 100644 drivers/soc/ti/wkup_m3_ipc.c create mode 100644 include/linux/wkup_m3_ipc.h -- 2.4.5 -- 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
