linux-kernel - [PATCH v4 1/2] Documentation: dt-bindings: Document bindings for Aspeed ADC

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20170323184136.7349-1-raltherr@google.com>
Date:   Thu, 23 Mar 2017 11:41:34 -0700
From:   Rick Altherr <raltherr@...gle.com>
To:     openbmc@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Cc:     devicetree@...r.kernel.org, linux-iio@...r.kernel.org,
        Hartmut Knaack <knaack.h@....de>,
        Rob Herring <robh+dt@...nel.org>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Mark Rutland <mark.rutland@....com>,
        Jonathan Cameron <jic23@...nel.org>,
        Peter Meerwald-Stadler <pmeerw@...erw.net>
Subject: [PATCH v4 1/2] Documentation: dt-bindings: Document bindings for Aspeed ADC

Signed-off-by: Rick Altherr <raltherr@...gle.com>
---

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@...e9000 {
+		compatible = "aspeed,ast2400-adc";
+		reg = <0x1e6e9000 0xb0>;
+		clocks = <&clk_apb>;
+		#io-channel-cells = <1>;
+	};
-- 
2.12.1.500.gab5fba24ee-goog