Hi, This series contains the remaining code to enable suspend to mem and standby on am335x and am437x platforms. It depends on the ti-emif-sram series sent here [1]. Changes are based on comments given for V2 of this series which can be found here [2].
This code also depends on firmware for the wkup_m3 that is available here [3] that can either be placed in /lib/firmware or built in to the kernel. Changes from v2 are described in the patches but summary is: * Squash patch 5 into patch 3 since they touch the same platform code and don't need to be two patches. * Fix small ASM bug to program EMIF for self refresh then save context so that we save the exact state of the emif before suspending. * Add missing of_node_put in patch 4 * Avoid extern definition for asm-offsets definition and use a stub instead of defining out in asm-offsets. * Use dev_err and friends in pm33xx driver for PM messages. * General code cleanups. For testing the drivers required are: CONFIG_MAILBOX CONFIG_OMAP2PLUS_MBOX CONFIG_WKUP_M3_RPROC CONFIG_SOC_TI CONFIG_WKUP_M3_IPC CONFIG_TI_EMIF_SRAM CONFIG_AMX3_PM There is still a device tree patch series to follow that will completely enable PM but I will wait to send that until this series and the emif series have been reviewed, until then all patches have been pushed here for use [4]. Regards, Dave [1] https://www.spinics.net/lists/linux-omap/msg138314.html [2] https://www.spinics.net/lists/arm-kernel/msg582309.html [3] https://git.ti.com/processor-firmware/ti-amx3-cm3-pm-firmware/blobs/7eb9c0856a9e8b3b42bf64f761da135852b8eea7/bin/am335x-pm-firmware.elf [4] https://github.com/dgerlach/linux-pm/tree/upstream/v4.13/amx3-suspend-v3 Dave Gerlach (4): ARM: OMAP2+: Introduce low-level suspend code for AM33XX ARM: OMAP2+: Introduce low-level suspend code for AM43XX ARM: OMAP2+: pm33xx-core: Add platform code needed for PM soc: ti: Add pm33xx driver for basic suspend support Documentation/devicetree/bindings/arm/omap/mpu.txt | 16 + arch/arm/kernel/asm-offsets.c | 2 + arch/arm/mach-omap2/Kconfig | 1 + arch/arm/mach-omap2/Makefile | 4 + arch/arm/mach-omap2/common.h | 7 + arch/arm/mach-omap2/io.c | 2 + arch/arm/mach-omap2/pm.h | 3 + arch/arm/mach-omap2/pm33xx-core.c | 197 +++++++++++ arch/arm/mach-omap2/sleep33xx.S | 221 ++++++++++++ arch/arm/mach-omap2/sleep43xx.S | 394 +++++++++++++++++++++ drivers/soc/ti/Kconfig | 9 + drivers/soc/ti/Makefile | 1 + drivers/soc/ti/pm33xx.c | 357 +++++++++++++++++++ include/linux/platform_data/pm33xx.h | 74 ++++ 14 files changed, 1288 insertions(+) create mode 100644 arch/arm/mach-omap2/pm33xx-core.c create mode 100644 arch/arm/mach-omap2/sleep33xx.S create mode 100644 arch/arm/mach-omap2/sleep43xx.S create mode 100644 drivers/soc/ti/pm33xx.c create mode 100644 include/linux/platform_data/pm33xx.h -- 2.13.0
