From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jae Hyun Yoo Subject: [PATCH v3 01/10] Documentations: dt-bindings: Add documents of generic PECI bus, adapter and client drivers Date: Tue, 10 Apr 2018 11:32:03 -0700 Message-ID: <20180410183212.16787-2-jae.hyun.yoo@linux.intel.com> References: <20180410183212.16787-1-jae.hyun.yoo@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20180410183212.16787-1-jae.hyun.yoo@linux.intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: Alan Cox , Andrew Jeffery , Andrew Lunn , Andy Shevchenko , Arnd Bergmann , Benjamin Herrenschmidt , Fengguang Wu , Greg KH , Guenter Roeck , Haiyue Wang , James Feist , Jason M Biils , Jean Delvare , Joel Stanley , Julia Cartwright , Miguel Ojeda , Milton Miller II , Pavel Machek , Randy Dunlap , Stef van Os , Sumeet R Pawnikar , Vernon Mauery Cc: linux-hwmon@vger.kernel.org, devicetree@vger.kernel.org, Jae Hyun Yoo , linux-doc@vger.kernel.org, openbmc@lists.ozlabs.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org List-Id: devicetree@vger.kernel.org This commit adds documents of generic PECI bus, adapter and client drivers. Signed-off-by: Jae Hyun Yoo Reviewed-by: Haiyue Wang Reviewed-by: James Feist Reviewed-by: Vernon Mauery Cc: Alan Cox Cc: Andrew Jeffery Cc: Andrew Lunn Cc: Andy Shevchenko Cc: Arnd Bergmann Cc: Benjamin Herrenschmidt Cc: Fengguang Wu Cc: Greg KH Cc: Guenter Roeck Cc: Jason M Biils Cc: Jean Delvare Cc: Joel Stanley Cc: Julia Cartwright Cc: Miguel Ojeda Cc: Milton Miller II Cc: Pavel Machek Cc: Randy Dunlap Cc: Stef van Os Cc: Sumeet R Pawnikar --- .../devicetree/bindings/peci/peci-adapter.txt | 23 ++++++++++++++++++++ .../devicetree/bindings/peci/peci-bus.txt | 15 +++++++++++++ .../devicetree/bindings/peci/peci-client.txt | 25 ++++++++++++++++++++++ 3 files changed, 63 insertions(+) create mode 100644 Documentation/devicetree/bindings/peci/peci-adapter.txt create mode 100644 Documentation/devicetree/bindings/peci/peci-bus.txt create mode 100644 Documentation/devicetree/bindings/peci/peci-client.txt diff --git a/Documentation/devicetree/bindings/peci/peci-adapter.txt b/Documentation/devicetree/bindings/peci/peci-adapter.txt new file mode 100644 index 000000000000..9221374f6b11 --- /dev/null +++ b/Documentation/devicetree/bindings/peci/peci-adapter.txt @@ -0,0 +1,23 @@ +Generic device tree configuration for PECI adapters. + +Required properties: +- compatible : Should contain hardware specific definition strings that can + match an adapter driver implementation. +- reg : Should contain PECI controller registers location and length. +- #address-cells : Should be <1>. +- #size-cells : Should be <0>. + +Example: + peci: peci@10000000 { + compatible = "simple-bus"; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0x0 0x10000000 0x1000>; + + peci0: peci-bus@0 { + compatible = "soc,soc-peci"; + reg = <0x0 0x1000>; + #address-cells = <1>; + #size-cells = <0>; + }; + }; diff --git a/Documentation/devicetree/bindings/peci/peci-bus.txt b/Documentation/devicetree/bindings/peci/peci-bus.txt new file mode 100644 index 000000000000..90bcc791ccb0 --- /dev/null +++ b/Documentation/devicetree/bindings/peci/peci-bus.txt @@ -0,0 +1,15 @@ +Generic device tree configuration for PECI buses. + +Required properties: +- compatible : Should be "simple-bus". +- #address-cells : Should be <1>. +- #size-cells : Should be <1>. +- ranges : Should contain PECI controller registers ranges. + +Example: + peci: peci@10000000 { + compatible = "simple-bus"; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0x0 0x10000000 0x1000>; + }; diff --git a/Documentation/devicetree/bindings/peci/peci-client.txt b/Documentation/devicetree/bindings/peci/peci-client.txt new file mode 100644 index 000000000000..8e2bfd8532f6 --- /dev/null +++ b/Documentation/devicetree/bindings/peci/peci-client.txt @@ -0,0 +1,25 @@ +Generic device tree configuration for PECI clients. + +Required properties: +- compatible : Should contain target device specific definition strings that can + match a client driver implementation. +- reg : Should contain address of a client CPU. Address range of CPU + clients is starting from 0x30 based on PECI specification. + <0x30> .. <0x37> (depends on the PECI_OFFSET_MAX definition) + +Example: + peci-bus@0 { + #address-cells = <1>; + #size-cells = <0>; + < more properties > + + function@cpu0 { + compatible = "device,function"; + reg = <0x30>; + }; + + function@cpu1 { + compatible = "device,function"; + reg = <0x31>; + }; + }; -- 2.16.2