| From: |
| Roger Lu <roger.lu-AT-mediatek.com> |
| To: |
| Matthias Brugger <matthias.bgg-AT-gmail.com>, Enric Balletbo Serra <eballetbo-AT-gmail.com>, Kevin Hilman <khilman-AT-kernel.org>, Rob Herring <robh+dt-AT-kernel.org>, Nicolas Boichat <drinkcat-AT-google.com>, Stephen Boyd <sboyd-AT-kernel.org>, Philipp Zabel <p.zabel-AT-pengutronix.de> |
| Subject: |
| [PATCH v14 0/7] soc: mediatek: SVS: introduce MTK SVS |
| Date: |
| Thu, 25 Mar 2021 10:51:07 +0800 |
| Message-ID: |
| <20210325025114.25842-1-roger.lu@mediatek.com> |
| Cc: |
| Fan Chen <fan.chen-AT-mediatek.com>, HenryC Chen <HenryC.Chen-AT-mediatek.com>, YT Lee <yt.lee-AT-mediatek.com>, Xiaoqing Liu <Xiaoqing.Liu-AT-mediatek.com>, Charles Yang <Charles.Yang-AT-mediatek.com>, Angus Lin <Angus.Lin-AT-mediatek.com>, Mark Rutland <mark.rutland-AT-arm.com>, Nishanth Menon <nm-AT-ti.com>, Roger Lu <roger.lu-AT-mediatek.com>, devicetree-AT-vger.kernel.org, linux-arm-kernel-AT-lists.infradead.org, linux-mediatek-AT-lists.infradead.org, linux-kernel-AT-vger.kernel.org, linux-pm-AT-vger.kernel.org, Project_Global_Chrome_Upstream_Group-AT-mediatek.com |
| Archive-link: |
| Article |
1. SVS driver uses OPP adjust event in [1] to update OPP table voltage part.
2. SVS driver gets thermal/GPU device by node [2][3] and CPU device by get_cpu_device(). After retrieving subsys device, SVS driver does
device_link_add() to make sure probe/suspend callback priority.
3. SVS dts refers to reset controller [4] to help reset SVS HW.
#mt8183 SVS related patches
[1] https://patchwork.kernel.org/patch/11193513/
[2] https://patchwork.kernel.org/project/linux-mediatek/patch...
[3] https://patchwork.kernel.org/project/linux-mediatek/patch...
#mt8192 SVS related patches
[1] https://patchwork.kernel.org/patch/11193513/
[2] https://patchwork.kernel.org/project/linux-mediatek/patch...
[3] https://lore.kernel.org/patchwork/patch/1360551/
[4] https://patchwork.kernel.org/project/linux-mediatek/patch...
changes since v13:
- Fix "mtk-svs.yaml: properties:nvmem-cells:maxItems: False schema does not allow 2"
- Remove wrong maintainer "Nishanth Menon <nm@ti.com>"
- When turn_pt = 0, SVS HIGH bank fills FREQPCT74 / FREQPCT30 with 0 and SVS controller won't run normally. Therefore, we initialize SVS HIGH bank's FREQPCT30 with svsb->freqs_pct[0] to avoid this issue.
- Change SVS GPU opp count back from 14 to 16 because GPU DVFS has a better solution
Roger Lu (7):
[v14,1/7]: dt-bindings: soc: mediatek: add mtk svs dt-bindings
[v14,2/7]: arm64: dts: mt8183: add svs device information
[v14,3/7]: soc: mediatek: SVS: introduce MTK SVS engine
[v14,4/7]: soc: mediatek: SVS: add debug commands
[v14,5/7]: dt-bindings: soc: mediatek: add mt8192 svs dt-bindings
[v14,6/7]: arm64: dts: mt8192: add svs device information
[v14,7/7]: soc: mediatek: SVS: add mt8192 SVS GPU driver
.../bindings/soc/mediatek/mtk-svs.yaml | 92 +
arch/arm64/boot/dts/mediatek/mt8183.dtsi | 18 +
arch/arm64/boot/dts/mediatek/mt8192.dtsi | 34 +
drivers/soc/mediatek/Kconfig | 10 +
drivers/soc/mediatek/Makefile | 1 +
drivers/soc/mediatek/mtk-svs.c | 2495 +++++++++++++++++
6 files changed, 2650 insertions(+)
create mode 100644 Documentation/devicetree/bindings/soc/mediatek/mtk-svs.yaml
create mode 100644 drivers/soc/mediatek/mtk-svs.c
