Messages in this thread Patch in this message | | | 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 |
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This commit adds documents of generic PECI bus, adapter and client drivers.
Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com> Reviewed-by: Haiyue Wang <haiyue.wang@linux.intel.com> Reviewed-by: James Feist <james.feist@linux.intel.com> Reviewed-by: Vernon Mauery <vernon.mauery@linux.intel.com> Cc: Alan Cox <alan@linux.intel.com> Cc: Andrew Jeffery <andrew@aj.id.au> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Andy Shevchenko <andriy.shevchenko@intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Fengguang Wu <fengguang.wu@intel.com> Cc: Greg KH <gregkh@linuxfoundation.org> Cc: Guenter Roeck <linux@roeck-us.net> Cc: Jason M Biils <jason.m.bills@linux.intel.com> Cc: Jean Delvare <jdelvare@suse.com> Cc: Joel Stanley <joel@jms.id.au> Cc: Julia Cartwright <juliac@eso.teric.us> Cc: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com> Cc: Milton Miller II <miltonm@us.ibm.com> Cc: Pavel Machek <pavel@ucw.cz> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Stef van Os <stef.van.os@prodrive-technologies.com> Cc: Sumeet R Pawnikar <sumeet.r.pawnikar@intel.com> --- .../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
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