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authorLinus Torvalds <torvalds@linux-foundation.org>2020-12-15 14:18:40 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2020-12-15 14:18:40 -0800
commit3db1a3fa98808aa90f95ec3e0fa2fc7abf28f5c9 (patch)
tree53958546913e5c60c590109c141bf182f1795e86 /Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt
parent2911ed9f47b47cb5ab87d03314b3b9fe008e607f (diff)
parent4996b4610767064807d022dd731584f7ff78c309 (diff)
Merge tag 'staging-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging / IIO driver updates from Greg KH: "Here is the big staging and IIO driver pull request for 5.11-rc1 Lots of different things in here: - loads of driver updates - so many coding style cleanups - new IIO drivers - Android ION code is finally removed from the tree - wimax drivers are moved to staging on their way out of the kernel Nothing really exciting, just the constant grind of kernel development :) All have been in linux-next for a while with no reported issues" * tag 'staging-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (341 commits) staging: olpc_dcon: Do not call platform_device_unregister() in dcon_probe() staging: most: Fix spelling mistake "tranceiver" -> "transceiver" staging: qlge: remove duplicate word in comment staging: comedi: mf6x4: Fix AI end-of-conversion detection staging: greybus: Add TODO item about modernizing the pwm code pinctrl: ralink: add a pinctrl driver for the rt2880 family dt-bindings: pinctrl: rt2880: add binding document staging: rtl8723bs: remove ELEMENT_ID enum staging: rtl8723bs: remove unused macros staging: rtl8723bs: replace EID_EXTCapability staging: rtl8723bs: replace EID_BSSIntolerantChlReport staging: rtl8723bs: replace EID_BSSCoexistence staging: rtl8723bs: replace _MME_IE_ staging: rtl8723bs: replace _WAPI_IE_ staging: rtl8723bs: replace _EXT_SUPPORTEDRATES_IE_ staging: rtl8723bs: replace _ERPINFO_IE_ staging: rtl8723bs: replace _CHLGETXT_IE_ staging: rtl8723bs: replace _COUNTRY_IE_ staging: rtl8723bs: replace _IBSS_PARA_IE_ staging: rtl8723bs: replace _TIM_IE_ ...
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-* AT91 SAMA5D2 Analog to Digital Converter (ADC)
-
-Required properties:
- - compatible: Should be "atmel,sama5d2-adc" or "microchip,sam9x60-adc".
- - reg: Should contain ADC registers location and length.
- - interrupts: Should contain the IRQ line for the ADC.
- - clocks: phandle to device clock.
- - clock-names: Must be "adc_clk".
- - vref-supply: Supply used as reference for conversions.
- - vddana-supply: Supply for the adc device.
- - atmel,min-sample-rate-hz: Minimum sampling rate, it depends on SoC.
- - atmel,max-sample-rate-hz: Maximum sampling rate, it depends on SoC.
- - atmel,startup-time-ms: Startup time expressed in ms, it depends on SoC.
- - atmel,trigger-edge-type: One of possible edge types for the ADTRG hardware
- trigger pin. When the specific edge type is detected, the conversion will
- start. Possible values are rising, falling, or both.
- This property uses the IRQ edge types values: IRQ_TYPE_EDGE_RISING ,
- IRQ_TYPE_EDGE_FALLING or IRQ_TYPE_EDGE_BOTH
-
-Optional properties:
- - dmas: Phandle to dma channel for the ADC.
- - dma-names: Must be "rx" when dmas property is being used.
- See ../../dma/dma.txt for details.
- - #io-channel-cells: in case consumer drivers are attached, this must be 1.
- See <Documentation/devicetree/bindings/iio/iio-bindings.txt> for details.
-
-Properties for consumer drivers:
- - Consumer drivers can be connected to this producer device, as specified
- in <Documentation/devicetree/bindings/iio/iio-bindings.txt>
- - Channels exposed are specified in:
- <dt-bindings/iio/adc/at91-sama5d2_adc.txt>
-
-Example:
-
-adc: adc@fc030000 {
- compatible = "atmel,sama5d2-adc";
- reg = <0xfc030000 0x100>;
- interrupts = <40 IRQ_TYPE_LEVEL_HIGH 7>;
- clocks = <&adc_clk>;
- clock-names = "adc_clk";
- atmel,min-sample-rate-hz = <200000>;
- atmel,max-sample-rate-hz = <20000000>;
- atmel,startup-time-ms = <4>;
- vddana-supply = <&vdd_3v3_lp_reg>;
- vref-supply = <&vdd_3v3_lp_reg>;
- atmel,trigger-edge-type = <IRQ_TYPE_EDGE_BOTH>;
- dmas = <&dma0 (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) | AT91_XDMAC_DT_PERID(25))>;
- dma-names = "rx";
- #io-channel-cells = <1>;
-}