Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965541AbdCWSln (ORCPT ); Thu, 23 Mar 2017 14:41:43 -0400 Received: from mail-pf0-f172.google.com ([209.85.192.172]:33364 "EHLO mail-pf0-f172.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933345AbdCWSlk (ORCPT ); Thu, 23 Mar 2017 14:41:40 -0400 From: Rick Altherr To: openbmc@lists.ozlabs.org, linux-kernel@vger.kernel.org Cc: devicetree@vger.kernel.org, linux-iio@vger.kernel.org, Hartmut Knaack , Rob Herring , Lars-Peter Clausen , Mark Rutland , Jonathan Cameron , Peter Meerwald-Stadler Subject: [PATCH v4 1/2] Documentation: dt-bindings: Document bindings for Aspeed ADC Date: Thu, 23 Mar 2017 11:41:34 -0700 Message-Id: <20170323184136.7349-1-raltherr@google.com> X-Mailer: git-send-email 2.12.1.500.gab5fba24ee-goog Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1387 Lines: 43 Signed-off-by: Rick Altherr --- Changes in v4: None Changes in v3: - Consistently write hex contstants with lowercase letters - Drop model numbers from description as same IP is used in every generation Changes in v2: - Rewritten as an IIO ADC device .../devicetree/bindings/iio/adc/aspeed_adc.txt | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/adc/aspeed_adc.txt diff --git a/Documentation/devicetree/bindings/iio/adc/aspeed_adc.txt b/Documentation/devicetree/bindings/iio/adc/aspeed_adc.txt new file mode 100644 index 000000000000..674e133b7cd7 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/adc/aspeed_adc.txt @@ -0,0 +1,20 @@ +Aspeed ADC + +This device is a 10-bit converter for 16 voltage channels. All inputs are +single ended. + +Required properties: +- compatible: Should be "aspeed,ast2400-adc" or "aspeed,ast2500-adc" +- reg: memory window mapping address and length +- clocks: Input clock used to derive the sample clock. Expected to be the + SoC's APB clock. +- #io-channel-cells: Must be set to <1> to indicate channels are selected + by index. + +Example: + adc@1e6e9000 { + compatible = "aspeed,ast2400-adc"; + reg = <0x1e6e9000 0xb0>; + clocks = <&clk_apb>; + #io-channel-cells = <1>; + }; -- 2.12.1.500.gab5fba24ee-goog