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From: Keerthy <j-keerthy@ti.com>
To: <robh+dt@kernel.org>, <daniel.lezcano@linaro.org>,
	<amitk@kernel.org>, <rui.zhang@intel.com>, <kristo@kernel.org>
Cc: <j-keerthy@ti.com>, <linux-pm@vger.kernel.org>,
	<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: [PATCH 0/4] thermal: k3_j72xx_bandgap: Add the bandgap driver support
Date: Mon, 4 Oct 2021 16:55:46 +0530	[thread overview]
Message-ID: <20211004112550.27546-1-j-keerthy@ti.com> (raw)

Add VTM thermal support. In the Voltage Thermal Management
Module(VTM), K3 J72XX supplies a voltage reference and a temperature
sensor feature that are gathered in the band gap voltage and
temperature sensor (VBGAPTS) module. The band gap provides current and
voltage reference for its internal circuits and other analog IP
blocks. The analog-to-digital converter (ADC) produces an output value
that is proportional to the silicon temperature.

Currently reading temperatures only is supported.  There are no
active/passive cooling agent supported.

J721e SoCs have errata i2128: https://www.ti.com/lit/pdf/sprz455

The series also incorporates workaround for Errata i2128.

Keerthy (4):
  dt-bindings: thermal: k3-j72xx: Add VTM bindings documentation
  arm64: dts: ti: j721e: Add VTM node
  arm64: dts: ti: j7200: Add VTM node
  thermal: k3_j72xx_bandgap: Add the bandgap driver support

 .../bindings/thermal/ti,j72xx-thermal.yaml    |  58 ++
 .../boot/dts/ti/k3-j7200-mcu-wakeup.dtsi      |   9 +
 arch/arm64/boot/dts/ti/k3-j7200-thermal.dtsi  |  45 +
 arch/arm64/boot/dts/ti/k3-j7200.dtsi          |   4 +
 .../boot/dts/ti/k3-j721e-mcu-wakeup.dtsi      |   9 +
 arch/arm64/boot/dts/ti/k3-j721e-thermal.dtsi  |  73 ++
 arch/arm64/boot/dts/ti/k3-j721e.dtsi          |   4 +
 drivers/thermal/Makefile                      |   2 +-
 drivers/thermal/k3_j72xx_bandgap.c            | 773 ++++++++++++++++++
 9 files changed, 976 insertions(+), 1 deletion(-)
 create mode 100644 Documentation/devicetree/bindings/thermal/ti,j72xx-thermal.yaml
 create mode 100644 arch/arm64/boot/dts/ti/k3-j7200-thermal.dtsi
 create mode 100644 arch/arm64/boot/dts/ti/k3-j721e-thermal.dtsi
 create mode 100644 drivers/thermal/k3_j72xx_bandgap.c

-- 
2.17.1


             reply	other threads:[~2021-10-04 11:26 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-04 11:25 Keerthy [this message]
2021-10-04 11:25 ` [PATCH 1/4] dt-bindings: thermal: k3-j72xx: Add VTM bindings documentation Keerthy
2021-10-05 12:26   ` Rob Herring
2021-10-05 13:05     ` Rob Herring
2021-10-06  9:42       ` Daniel Lezcano
2021-10-06 13:19         ` J, KEERTHY
2021-10-04 11:25 ` [PATCH 2/4] arm64: dts: ti: j721e: Add VTM node Keerthy
2021-10-04 11:25 ` [PATCH 3/4] arm64: dts: ti: j7200: " Keerthy
2021-10-04 11:25 ` [PATCH 4/4] thermal: k3_j72xx_bandgap: Add the bandgap driver support Keerthy

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