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Message-ID: <7hlex7p5q5.fsf@baylibre.com> Date: Fri, 18 Mar 2022 09:48:02 -0700 From: Kevin Hilman <khilman@...nel.org> To: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>, Roger Lu <roger.lu@...iatek.com>, Matthias Brugger <matthias.bgg@...il.com>, Enric Balletbo Serra <eballetbo@...il.com>, Rob Herring <robh+dt@...nel.org>, Nicolas Boichat <drinkcat@...gle.com>, Stephen Boyd <sboyd@...nel.org>, Philipp Zabel <p.zabel@...gutronix.de> Cc: Fan Chen <fan.chen@...iatek.com>, HenryC Chen <HenryC.Chen@...iatek.com>, Xiaoqing Liu <Xiaoqing.Liu@...iatek.com>, Charles Yang <Charles.Yang@...iatek.com>, Angus Lin <Angus.Lin@...iatek.com>, Mark Rutland <mark.rutland@....com>, Nishanth Menon <nm@...com>, devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org, Project_Global_Chrome_Upstream_Group@...iatek.com, Guenter Roeck <linux@...ck-us.net>, Jia-wei Chang <jia-wei.chang@...iatek.com> Subject: Re: [PATCH v23 0/7] soc: mediatek: SVS: introduce MTK SVS AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com> writes: > Il 21/02/22 07:39, Roger Lu ha scritto: >> The Smart Voltage Scaling(SVS) engine is a piece of hardware >> which calculates suitable SVS bank voltages to OPP voltage table. >> Then, DVFS driver could apply those SVS bank voltages to PMIC/Buck >> when receiving OPP_EVENT_ADJUST_VOLTAGE. >> >> 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 calls device_link_add() to make sure probe/suspend callback priority. >> >> [1] https://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm.git/commit/?h=opp/linux-next&id=25cb20a212a1f989385dfe23230817e69c62bee5 >> [2] https://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm.git/commit/?h=opp/linux-next&id=b325ce39785b1408040d90365a6ab1aa36e94f87 >> [3] https://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux.git/commit/?h=v5.16-next/dts64&id=a8168cebf1bca1b5269e8a7eb2626fb76814d6e2 >> >> change since v22: >> - Make "svsb_volt = max(svsb->volt[i] + temp_voffset, svsb->vmin);" become one line. >> - Remove voffset read/write commands for better system safety. >> - Add more comments on @turn_freq_base. >> >> Roger Lu (7): >> [v23,1/7] dt-bindings: soc: mediatek: add mtk svs dt-bindings >> [v23,2/7] arm64: dts: mt8183: add svs device information >> [v23,3/7] soc: mediatek: SVS: introduce MTK SVS engine >> [v23,4/7] soc: mediatek: SVS: add monitor mode >> [v23,5/7] soc: mediatek: SVS: add debug commands >> [v23,6/7] dt-bindings: soc: mediatek: add mt8192 svs dt-bindings >> [v23,7/7] soc: mediatek: SVS: add mt8192 SVS GPU driver >> >> .../bindings/soc/mediatek/mtk-svs.yaml | 91 + >> arch/arm64/boot/dts/mediatek/mt8183.dtsi | 16 + >> drivers/soc/mediatek/Kconfig | 10 + >> drivers/soc/mediatek/Makefile | 1 + >> drivers/soc/mediatek/mtk-svs.c | 2398 +++++++++++++++++ >> 5 files changed, 2516 insertions(+) >> create mode 100644 Documentation/devicetree/bindings/soc/mediatek/mtk-svs.yaml >> create mode 100644 drivers/soc/mediatek/mtk-svs.c >> > > Hello, > the entire series has got reviews, and this has already reached 23 iterations. > I personally have no more complaints about this one. > > Does anyone have any KO comments about this series? Reviewed-by: Kevin Hilman <khilman@...libre.com> I haven't reviewed closely since much earlier versions, but reviewing it again now, I think this series is in good shape now. Thank you Angelo for all of your detailed reviews. Also thank you Roger for your persistence and dedication on getting this feature upstream. It has been a long road, but you've stuck with it. Kevin
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