[RFC PATCH 0/3] ARM64: meson-gxbb: Add support for system suspend

From: Neil Armstrong
Date: Thu Nov 03 2016 - 10:30:24 EST

Thie patchset is a very experiment patchset to support the System Suspend
feature of the Amlogic Meson GX SoCs.

These SoCs implements system suspend using a non-standard PSCI CPU_SUSPEND
parameter to enter system suspend.
A small driver is added to properly fill the platform_suspend_ops and make
to correct SMC call.

In order to wake up from an alarm, these SoCs have a special memory mapped
register where an alarm time delay in seconds is stored.
In order to reuse the RTC wakealarm feature, implement a fake RTC device
that uses the system time to calculate a delay to write to the register.

Note that this RFC is here to seek a better way to handle these platform
specific features.

Neil Armstrong (3):
ARM64: meson: Add Amlogic Meson GX PM Suspend
rtc: Add Amlogic Virtual Wake RTC
ARM64: dts: meson-gxbb: Add support for PM and Virtual RTC

arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi | 9 ++
drivers/firmware/meson/Kconfig | 6 +
drivers/firmware/meson/Makefile | 1 +
drivers/firmware/meson/meson_gx_pm.c | 86 +++++++++++++++
drivers/rtc/Kconfig | 10 ++
drivers/rtc/Makefile | 1 +
drivers/rtc/rtc-meson-vrtc.c | 164 ++++++++++++++++++++++++++++
7 files changed, 277 insertions(+)
create mode 100644 drivers/firmware/meson/meson_gx_pm.c
create mode 100644 drivers/rtc/rtc-meson-vrtc.c