From: Iwona Winiarska <iwona.winiarska@intel.com> To: linux-kernel@vger.kernel.org, openbmc@lists.ozlabs.org, Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: linux-aspeed@lists.ozlabs.org, linux-doc@vger.kernel.org, Dan Williams <dan.j.williams@intel.com>, Zev Weiss <zweiss@equinix.com>, Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>, Andy Shevchenko <andriy.shevchenko@linux.intel.com>, Jonathan Corbet <corbet@lwn.net>, x86@kernel.org, Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>, Ingo Molnar <mingo@redhat.com>, Guenter Roeck <linux@roeck-us.net>, devicetree@vger.kernel.org, Jean Delvare <jdelvare@suse.com>, Arnd Bergmann <arnd@arndb.de>, Rob Herring <robh+dt@kernel.org>, Borislav Petkov <bp@alien8.de>, Iwona Winiarska <iwona.winiarska@intel.com>, Andy Lutomirski <luto@kernel.org>, Thomas Gleixner <tglx@linutronix.de>, Mauro Carvalho Chehab <mchehab@kernel.org>, linux-arm-kernel@lists.infradead.org, linux-hwmon@vger.kernel.org, Tony Luck <tony.luck@intel.com>, Andrew Jeffery <andrew@aj.id.au>, Randy Dunlap <rdunlap@infradead.org>, Yazen Ghannam <yazen.ghannam@amd.com>, Olof Johansson <olof@lixom.net> Subject: [PATCH v2 04/15] dt-bindings: Add bindings for peci-aspeed Date: Tue, 3 Aug 2021 13:31:23 +0200 [thread overview] Message-ID: <20210803113134.2262882-5-iwona.winiarska@intel.com> (raw) In-Reply-To: <20210803113134.2262882-1-iwona.winiarska@intel.com> Add device tree bindings for the peci-aspeed controller driver. Co-developed-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com> Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com> Signed-off-by: Iwona Winiarska <iwona.winiarska@intel.com> --- .../devicetree/bindings/peci/peci-aspeed.yaml | 109 ++++++++++++++++++ 1 file changed, 109 insertions(+) create mode 100644 Documentation/devicetree/bindings/peci/peci-aspeed.yaml diff --git a/Documentation/devicetree/bindings/peci/peci-aspeed.yaml b/Documentation/devicetree/bindings/peci/peci-aspeed.yaml new file mode 100644 index 000000000000..2929d1e000d8 --- /dev/null +++ b/Documentation/devicetree/bindings/peci/peci-aspeed.yaml @@ -0,0 +1,109 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/peci/peci-aspeed.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Aspeed PECI Bus Device Tree Bindings + +maintainers: + - Iwona Winiarska <iwona.winiarska@intel.com> + - Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com> + +allOf: + - $ref: peci-controller.yaml# + +properties: + compatible: + enum: + - aspeed,ast2400-peci + - aspeed,ast2500-peci + - aspeed,ast2600-peci + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + description: + Clock source for PECI controller. Should reference the external + oscillator clock. + maxItems: 1 + + resets: + maxItems: 1 + + cmd-timeout-ms: + minimum: 1 + maximum: 1000 + default: 1000 + + aspeed,clock-divider: + description: + This value determines PECI controller internal clock dividing + rate. The divider will be calculated as 2 raised to the power of + the given value. + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 7 + default: 0 + + aspeed,msg-timing: + description: + Message timing negotiation period. This value will determine the period + of message timing negotiation to be issued by PECI controller. The unit + of the programmed value is four times of PECI clock period. + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 255 + default: 1 + + aspeed,addr-timing: + description: + Address timing negotiation period. This value will determine the period + of address timing negotiation to be issued by PECI controller. The unit + of the programmed value is four times of PECI clock period. + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 255 + default: 1 + + aspeed,rd-sampling-point: + description: + Read sampling point selection. The whole period of a bit time will be + divided into 16 time frames. This value will determine the time frame + in which the controller will sample PECI signal for data read back. + Usually in the middle of a bit time is the best. + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 15 + default: 8 + +required: + - compatible + - reg + - interrupts + - clocks + - resets + +additionalProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/arm-gic.h> + #include <dt-bindings/clock/ast2600-clock.h> + peci-controller@1e78b000 { + compatible = "aspeed,ast2600-peci"; + reg = <0x1e78b000 0x100>; + interrupts = <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&syscon ASPEED_CLK_GATE_REF0CLK>; + resets = <&syscon ASPEED_RESET_PECI>; + cmd-timeout-ms = <1000>; + aspeed,clock-divider = <0>; + aspeed,msg-timing = <1>; + aspeed,addr-timing = <1>; + aspeed,rd-sampling-point = <8>; + }; +... -- 2.31.1
next prev parent reply other threads:[~2021-08-04 0:18 UTC|newest] Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-08-03 11:31 [PATCH v2 00/15] Introduce PECI subsystem Iwona Winiarska 2021-08-03 11:31 ` [PATCH v2 01/15] x86/cpu: Move intel-family to arch-independent headers Iwona Winiarska 2021-10-04 19:03 ` Borislav Petkov 2021-10-11 19:21 ` Winiarska, Iwona 2021-10-11 19:40 ` Dave Hansen 2021-10-11 20:53 ` Winiarska, Iwona 2021-10-11 23:12 ` Dave Hansen 2021-10-11 20:06 ` Borislav Petkov 2021-10-11 20:38 ` Winiarska, Iwona 2021-10-11 21:31 ` Borislav Petkov 2021-10-12 23:15 ` Winiarska, Iwona 2021-10-13 6:42 ` Borislav Petkov 2021-08-03 11:31 ` [PATCH v2 02/15] x86/cpu: Extract cpuid helpers to arch-independent Iwona Winiarska 2021-10-04 19:08 ` Borislav Petkov 2021-10-11 19:32 ` Winiarska, Iwona 2021-08-03 11:31 ` [PATCH v2 03/15] dt-bindings: Add generic bindings for PECI Iwona Winiarska 2021-08-11 18:11 ` Rob Herring 2021-08-03 11:31 ` Iwona Winiarska [this message] 2021-08-11 18:11 ` [PATCH v2 04/15] dt-bindings: Add bindings for peci-aspeed Rob Herring 2021-08-03 11:31 ` [PATCH v2 05/15] ARM: dts: aspeed: Add PECI controller nodes Iwona Winiarska 2021-08-03 11:31 ` [PATCH v2 06/15] peci: Add core infrastructure Iwona Winiarska 2021-08-25 22:58 ` Dan Williams 2021-08-26 22:40 ` Winiarska, Iwona 2021-08-03 11:31 ` [PATCH v2 07/15] peci: Add peci-aspeed controller driver Iwona Winiarska 2021-08-26 1:35 ` Dan Williams 2021-08-26 23:54 ` Winiarska, Iwona 2021-08-27 16:24 ` Dan Williams 2021-08-29 19:42 ` Winiarska, Iwona 2021-08-03 11:31 ` [PATCH v2 08/15] peci: Add device detection Iwona Winiarska 2021-08-27 19:01 ` Dan Williams 2021-11-15 22:18 ` Winiarska, Iwona 2021-08-03 11:31 ` [PATCH v2 09/15] peci: Add sysfs interface for PECI bus Iwona Winiarska 2021-08-27 19:11 ` Dan Williams 2021-11-15 22:19 ` Winiarska, Iwona 2021-08-03 11:31 ` [PATCH v2 10/15] peci: Add support for PECI device drivers Iwona Winiarska 2021-08-27 21:19 ` Dan Williams 2021-11-15 22:20 ` Winiarska, Iwona 2021-08-03 11:31 ` [PATCH v2 11/15] peci: Add peci-cpu driver Iwona Winiarska 2021-08-03 11:31 ` [PATCH v2 12/15] hwmon: peci: Add cputemp driver Iwona Winiarska 2021-08-03 15:24 ` Guenter Roeck 2021-08-04 10:43 ` Winiarska, Iwona 2021-08-03 11:31 ` [PATCH v2 13/15] hwmon: peci: Add dimmtemp driver Iwona Winiarska 2021-08-03 15:39 ` Guenter Roeck 2021-08-04 10:46 ` Winiarska, Iwona 2021-08-04 17:33 ` Guenter Roeck 2021-08-05 21:48 ` Winiarska, Iwona 2021-08-03 11:31 ` [PATCH v2 14/15] docs: hwmon: Document PECI drivers Iwona Winiarska 2021-08-03 11:31 ` [PATCH v2 15/15] docs: Add PECI documentation Iwona Winiarska 2021-08-05 12:17 ` [PATCH v2 00/15] Introduce PECI subsystem Greg Kroah-Hartman
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