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| author | Faiz Abbas <faiz_abbas@ti.com> | 2017-11-14 16:12:31 +0530 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2017-11-21 08:03:38 -0500 |
| commit | 8502f9f6d7781b5f461d7e3f7c958a45f64fdfa1 (patch) | |
| tree | ff43f81e43bc6b1992117d7d7e0c2e9ee143b455 /doc/device-tree-bindings | |
| parent | 5ad1fec6edcfa7d8b374571cc3c40da7dde8898b (diff) | |
| download | u-boot-8502f9f6d7781b5f461d7e3f7c958a45f64fdfa1.tar.gz u-boot-8502f9f6d7781b5f461d7e3f7c958a45f64fdfa1.tar.xz u-boot-8502f9f6d7781b5f461d7e3f7c958a45f64fdfa1.zip | |
thermal: ti-bandgap: Add support for temperature sensor
The dra7xx series of SOCs contain a temperature sensor and an
associated analog-to-digital converter (ADC) which produces
an output which is proportional to the SOC temperature.
Add support for this temperature sensor.
Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'doc/device-tree-bindings')
| -rw-r--r-- | doc/device-tree-bindings/thermal/ti_soc_thermal.txt | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/doc/device-tree-bindings/thermal/ti_soc_thermal.txt b/doc/device-tree-bindings/thermal/ti_soc_thermal.txt new file mode 100644 index 0000000000..b4e88c2d1e --- /dev/null +++ b/doc/device-tree-bindings/thermal/ti_soc_thermal.txt @@ -0,0 +1,35 @@ +* Texas Instrument dra7xx SCM bandgap bindings + +In the System Control Module, SoC 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. + +Required properties: +- compatible : Should be: + - "ti,dra752-bandgap" +- interrupts : this entry should indicate which interrupt line +the talert signal is routed to; +- regs : this is specific to each bandgap version, because +the mapping may change from soc to soc, apart from depending +on available features. + +Optional: +- gpios : this entry should be used to inform which GPIO +line the tshut signal is routed to. The informed GPIO will +be treated as an IRQ; + +Example: +bandgap { + reg = <0x4a0021e0 0xc + 0x4a00232c 0xc + 0x4a002380 0x2c + 0x4a0023C0 0x3c + 0x4a002564 0x8 + 0x4a002574 0x50>; + compatible = "ti,dra752-bandgap"; + interrupts = <0 126 4>; /* talert */ +}; |