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Subject[PATCH v2 0/5] arm64: dts: rockchip: support mail and IPA thermal for rk3399
Date
This series patches supported the mail in devicetree and used the
thermal IPA by default.

Verified with kernel is based on Linus's master branch and Heiko's
v4.14-armsoc-tmp/dts64 branch. ( The Linux version 4.12.0 for now).

The most rockchip SoCs will be supported with IPA mode for thermal
in later.

---

History version:
1. The first version found on
https://www.spinics.net/lists/arm-kernel/msg593118.html

Tested on Kevin board with bringing up ChromeOS.
OS VERSION:
CHROMEOS_RELEASE_DESCRIPTION=9693.1.0 (Official Build) dev-channel kevin test

BIOS VERSION:
Google_Kevin.8785.211.2017_06_20_1043

EC VERSION:
Build info: kevin_v1.10.217-24514961d 2017-07-03 07:46:36 wxt@nb

With the ARM's lastest mali driver TX011-SW-99002-r18p0-01rel0 on
https://developer.arm.com/products/software/mali-drivers/midgard-kernel

From the bootup log:
localhost devfreq0 # dmesg |grep mali
[ 0.933334] mali ff9a0000.gpu: GPU identified as 0x0860 r2p0 status 0
[ 0.940830] mali ff9a0000.gpu: Protected mode not available
[ 0.947334] mali ff9a0000.gpu: Using configured power model mali-simple-power-model, and fallback mali-simple-power-model
[ 0.960083] mali ff9a0000.gpu: Probed as mali0

localhost devfreq0 # pwd
/sys/devices/platform/ff9a0000.gpu/devfreq/devfreq0
localhost devfreq0 # ls
available_frequencies device min_freq subsystem uevent
available_governors governor polling_interval target_freq userspace
cur_freq max_freq power trans_stat

localhost ff9a0000.gpu # ls
core_availability_policy gpuinfo modalias soft_job_timeout
core_mask js_scheduling_period of_node subsystem
devfreq js_timeouts pm_poweroff uevent
driver mem_pool_max_size power
driver_override mem_pool_size power_policy
dvfs_period misc reset_timeout
---

And for thermal with IPA.
Try to run 'md5sum /dev/zero &' and octane/benchmark scripts to go up the temperature.
From the scripts to have a look at the actual control.
"
while true; do grep "" /sys/class/thermal/thermal_zone[0-1]/temp /sys/devices/system/cpu/cpu[0-5]/cpufreq/scaling_cur_freq /sys/devices/platform/ff9a0000.gpu/devfreq/devfreq0/cur_freq;date;sleep .5; done &
"

-Caesar


Changes in v2:
As Heiko comments on https://patchwork.kernel.org/patch/9835939/
- interrupt-name use the lower case.
- use the correct compatible "arm,mali-t860"
- remove the clock name, since the mali only have one input clock.
- foo@ will produce warnings when used without reg property.
- update the commit to explain the two passive trip points changed.

Caesar Wang (5):
dt-bindings: gpu: add the RK3399 mali for rockchip specifics
dt-bindings: gpu: add a power_model optional properties for MALI
arm64: dts: rockchip: add ARM Mali GPU node for RK3399 SoCs
arm64: dts: rockchip: enable the GPU for RK3399-GRU
arm64: dts: rockchip: update the thermal zones for RK3399 SoCs

.../devicetree/bindings/gpu/arm,mali-midgard.txt | 13 ++++
arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi | 5 ++
arch/arm64/boot/dts/rockchip/rk3399-op1-opp.dtsi | 33 ++++++++++
arch/arm64/boot/dts/rockchip/rk3399-opp.dtsi | 33 ++++++++++
arch/arm64/boot/dts/rockchip/rk3399.dtsi | 74 ++++++++++++----------
5 files changed, 125 insertions(+), 33 deletions(-)

--
2.7.4

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