[PATCH v2 0/5] arm64: dts: rockchip: support mail and IPA thermal for rk3399

Caesar Wang
2017-07-17T08:14:47Z

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(-)

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2.7.4