From: Billy Tsai <billy_tsai@aspeedtech.com> To: <jic23@kernel.org>, <lars@metafoo.de>, <pmeerw@pmeerw.net>, <robh+dt@kernel.org>, <joel@jms.id.au>, <andrew@aj.id.au>, <p.zabel@pengutronix.de>, <linux-iio@vger.kernel.org>, <devicetree@vger.kernel.org>, <linux-arm-kernel@lists.infradead.org>, <linux-aspeed@lists.ozlabs.org>, <linux-kernel@vger.kernel.org> Cc: <BMC-SW@aspeedtech.com> Subject: [v2 2/8] dt-bindings: iio: adc: Binding ast2600 adc. Date: Fri, 23 Jul 2021 16:16:15 +0800 [thread overview] Message-ID: <20210723081621.29477-3-billy_tsai@aspeedtech.com> (raw) In-Reply-To: <20210723081621.29477-1-billy_tsai@aspeedtech.com> This patch add more description about aspeed adc and add two property for ast2600: - vref: used to configure reference voltage. - battery-sensing: used to enable battery sensing mode for last channel. Signed-off-by: Billy Tsai <billy_tsai@aspeedtech.com> --- .../bindings/iio/adc/aspeed,adc.yaml | 28 +++++++++++++++++-- 1 file changed, 26 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/iio/adc/aspeed,adc.yaml b/Documentation/devicetree/bindings/iio/adc/aspeed,adc.yaml index 23f3da1ffca3..a562a7fbc30c 100644 --- a/Documentation/devicetree/bindings/iio/adc/aspeed,adc.yaml +++ b/Documentation/devicetree/bindings/iio/adc/aspeed,adc.yaml @@ -10,14 +10,26 @@ maintainers: - Joel Stanley <joel@jms.id.au> description: - This device is a 10-bit converter for 16 voltage channels. All inputs are - single ended. + • 10-bits resolution for 16 voltage channels. + At ast2400/ast2500 the device has only one engine with 16 voltage channels. + At ast2600 the device split into two individual engine and each contains 8 voltage channels. + • Channel scanning can be non-continuous. + • Programmable ADC clock frequency. + • Programmable upper and lower bound for each channels. + • Interrupt when larger or less than bounds for each channels. + • Support hysteresis for each channels. + • Buildin a compensating method. + Additional feature at ast2600 + • Internal or External reference voltage. + • Support 2 Internal reference voltage 1.2v or 2.5v. + • Integrate dividing circuit for battery sensing. properties: compatible: enum: - aspeed,ast2400-adc - aspeed,ast2500-adc + - aspeed,ast2600-adc reg: maxItems: 1 @@ -33,6 +45,18 @@ properties: "#io-channel-cells": const: 1 + vref: + minItems: 900 + maxItems: 2700 + default: 2500 + description: + ADC Reference voltage in millivolts. + + battery-sensing: + type: boolean + description: + Inform the driver that last channel will be used to sensor battery. + required: - compatible - reg -- 2.25.1
WARNING: multiple messages have this Message-ID (diff)
From: Billy Tsai <billy_tsai@aspeedtech.com> To: <jic23@kernel.org>, <lars@metafoo.de>, <pmeerw@pmeerw.net>, <robh+dt@kernel.org>, <joel@jms.id.au>, <andrew@aj.id.au>, <p.zabel@pengutronix.de>, <linux-iio@vger.kernel.org>, <devicetree@vger.kernel.org>, <linux-arm-kernel@lists.infradead.org>, <linux-aspeed@lists.ozlabs.org>, <linux-kernel@vger.kernel.org> Cc: <BMC-SW@aspeedtech.com> Subject: [v2 2/8] dt-bindings: iio: adc: Binding ast2600 adc. Date: Fri, 23 Jul 2021 16:16:15 +0800 [thread overview] Message-ID: <20210723081621.29477-3-billy_tsai@aspeedtech.com> (raw) In-Reply-To: <20210723081621.29477-1-billy_tsai@aspeedtech.com> This patch add more description about aspeed adc and add two property for ast2600: - vref: used to configure reference voltage. - battery-sensing: used to enable battery sensing mode for last channel. Signed-off-by: Billy Tsai <billy_tsai@aspeedtech.com> --- .../bindings/iio/adc/aspeed,adc.yaml | 28 +++++++++++++++++-- 1 file changed, 26 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/iio/adc/aspeed,adc.yaml b/Documentation/devicetree/bindings/iio/adc/aspeed,adc.yaml index 23f3da1ffca3..a562a7fbc30c 100644 --- a/Documentation/devicetree/bindings/iio/adc/aspeed,adc.yaml +++ b/Documentation/devicetree/bindings/iio/adc/aspeed,adc.yaml @@ -10,14 +10,26 @@ maintainers: - Joel Stanley <joel@jms.id.au> description: - This device is a 10-bit converter for 16 voltage channels. All inputs are - single ended. + • 10-bits resolution for 16 voltage channels. + At ast2400/ast2500 the device has only one engine with 16 voltage channels. + At ast2600 the device split into two individual engine and each contains 8 voltage channels. + • Channel scanning can be non-continuous. + • Programmable ADC clock frequency. + • Programmable upper and lower bound for each channels. + • Interrupt when larger or less than bounds for each channels. + • Support hysteresis for each channels. + • Buildin a compensating method. + Additional feature at ast2600 + • Internal or External reference voltage. + • Support 2 Internal reference voltage 1.2v or 2.5v. + • Integrate dividing circuit for battery sensing. properties: compatible: enum: - aspeed,ast2400-adc - aspeed,ast2500-adc + - aspeed,ast2600-adc reg: maxItems: 1 @@ -33,6 +45,18 @@ properties: "#io-channel-cells": const: 1 + vref: + minItems: 900 + maxItems: 2700 + default: 2500 + description: + ADC Reference voltage in millivolts. + + battery-sensing: + type: boolean + description: + Inform the driver that last channel will be used to sensor battery. + required: - compatible - reg -- 2.25.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2021-07-23 8:16 UTC|newest] Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-07-23 8:16 [v2 0/8] Add support for ast2600 ADC Billy Tsai 2021-07-23 8:16 ` Billy Tsai 2021-07-23 8:16 ` [v2 1/8] dt-bindings: iio: adc: rename the aspeed adc yaml Billy Tsai 2021-07-23 8:16 ` Billy Tsai 2021-07-23 14:44 ` Jonathan Cameron 2021-07-23 14:44 ` Jonathan Cameron 2021-07-26 6:53 ` Billy Tsai 2021-07-26 6:53 ` Billy Tsai 2021-07-29 20:31 ` Rob Herring 2021-07-29 20:31 ` Rob Herring 2021-07-31 17:27 ` Jonathan Cameron 2021-07-31 17:27 ` Jonathan Cameron 2021-07-23 8:16 ` Billy Tsai [this message] 2021-07-23 8:16 ` [v2 2/8] dt-bindings: iio: adc: Binding ast2600 adc Billy Tsai 2021-07-23 14:51 ` Jonathan Cameron 2021-07-23 14:51 ` Jonathan Cameron 2021-07-26 7:21 ` Billy Tsai 2021-07-26 7:21 ` Billy Tsai 2021-07-23 8:16 ` [v2 3/8] iio: adc: aspeed: completes the bitfield declare Billy Tsai 2021-07-23 8:16 ` Billy Tsai 2021-07-23 14:55 ` Jonathan Cameron 2021-07-23 14:55 ` Jonathan Cameron 2021-07-23 8:16 ` [v2 4/8] iio: adc: aspeed: Allow driver to support ast2600 Billy Tsai 2021-07-23 8:16 ` Billy Tsai 2021-07-23 15:29 ` Jonathan Cameron 2021-07-23 15:29 ` Jonathan Cameron 2021-07-23 8:16 ` [v2 5/8] iio: adc: aspeed: Add func to set sampling rate Billy Tsai 2021-07-23 8:16 ` Billy Tsai 2021-07-23 15:37 ` Jonathan Cameron 2021-07-23 15:37 ` Jonathan Cameron 2021-07-23 8:16 ` [v2 6/8] iio: adc: aspeed: Add compensation phase Billy Tsai 2021-07-23 8:16 ` Billy Tsai 2021-07-23 15:44 ` Jonathan Cameron 2021-07-23 15:44 ` Jonathan Cameron 2021-07-23 8:16 ` [v2 7/8] iio: adc: aspeed: Fix the calculate error of clock Billy Tsai 2021-07-23 8:16 ` Billy Tsai 2021-07-23 8:16 ` [v2 8/8] iio: adc: aspeed: Support battery sensing Billy Tsai 2021-07-23 8:16 ` Billy Tsai 2021-07-23 15:56 ` Jonathan Cameron 2021-07-23 15:56 ` Jonathan Cameron 2021-07-26 6:54 ` Billy Tsai 2021-07-26 6:54 ` Billy Tsai
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