This series moves the BCM2835 WDT driver that controls a fraction of the PM block out to soc/ and adds most of the rest of its functionality. My motivation has been to have V3D be functional without firmware calls, probably improve its interactivity (since we'll be able to power on/off without RPC to the firmware that may be busy with other tasks), and (in a patch not submitted in this series) extend its binding to use the reset controller instead of trying to reset by toggling its power domain. I've tested V3D with a few hours of running a V3D test, sleep(1) (to trigger PM domain off); running a GPU hang job (to trigger reset); sleep(1). The non-hanging success-case job always passed, and dmesg had no complaints from bcm2835-pm. The other power domains are not tested, but I've done my best. This series will probably also be of interest to the https://github.com/christinaa/rpi-open-firmware project for enabling USB. Eric Anholt (8): watchdog: bcm2835: Move the driver to the soc/ directory. soc: bcm: bcm2835-pm: Rename the driver to its new "PM" name. soc: bcm: bcm2835-pm: Stop using _relaxed mmio accessors. soc: bcm: bcm2835-pm: Make some little accessor macros for the mmio area. dt-bindings: soc: Add a new binding for the BCM2835 PM node. soc: bcm: bcm2835-pm: Add support for power domains under a new binding. ARM: bcm283x: Extend the WDT DT node out to cover the whole PM block. ARM: bcm283x: Switch V3D over to using the PM driver instead of firmware. .../bindings/soc/bcm/brcm,bcm2835-pm.txt | 42 + arch/arm/boot/dts/bcm2835-rpi.dtsi | 4 - arch/arm/boot/dts/bcm283x.dtsi | 16 +- arch/arm/mach-bcm/Kconfig | 1 + drivers/soc/bcm/Makefile | 1 + drivers/soc/bcm/bcm2835-pm.c | 866 ++++++++++++++++++ drivers/watchdog/Kconfig | 11 - drivers/watchdog/Makefile | 1 - drivers/watchdog/bcm2835_wdt.c | 254 ----- include/dt-bindings/soc/bcm2835-pm.h | 28 + 10 files changed, 951 insertions(+), 273 deletions(-) create mode 100644 Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-pm.txt create mode 100644 drivers/soc/bcm/bcm2835-pm.c delete mode 100644 drivers/watchdog/bcm2835_wdt.c create mode 100644 include/dt-bindings/soc/bcm2835-pm.h -- 2.19.1
