From: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
To: Rob Herring <robh+dt@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Lee Jones <lee.jones@linaro.org>,
Jean Delvare <jdelvare@suse.com>,
Guenter Roeck <linux@roeck-us.net>,
Mark Rutland <mark.rutland@arm.com>,
Joel Stanley <joel@jms.id.au>, Andrew Jeffery <andrew@aj.id.au>,
Jonathan Corbet <corbet@lwn.net>,
Gustavo Pimentel <gustavo.pimentel@synopsys.com>,
Kishon Vijay Abraham I <kishon@ti.com>,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
"Darrick J . Wong" <darrick.wong@oracle.com>,
Eric Sandeen <sandeen@redhat.com>, Arnd Bergmann <arnd@arndb.de>,
Wu Hao <hao.wu@intel.com>,
Tomohiro Kusumi <kusumi.tomohiro@gmail.com>,
"Bryant G . Ly" <bryantly@linux.vnet.ibm.com>,
Frederic Barrat <fbarrat@linux.vnet.ibm.com>,
"David S . Miller" <davem@davemloft.net>,
Mauro Carvalho Chehab <mchehab+samsung@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Randy Dunlap <rdunlap@infradead.org>,
Philippe Ombredanne <pombredanne@nexb.com>,
Vinod Koul <vkoul@kernel.org>,
Stephen Boyd <sboyd@codeaurora.org>,
David Kershner <david.kershner@unisys.com>,
Uwe Kleine-Konig <u.kleine-koenig@pengutronix.de>,
Sagar Dharia <sdharia@codeaurora.org>,
Johan Hovold <johan@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Juergen Gross <jgross@suse.com>,
Cyrille Pitchen <cyrille.pitchen@wedev4u.fr>,
Tomer Maimon <tmaimon77@gmail.com>
Cc: linux-hwmon@vger.kernel.org, devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org,
openbmc@lists.ozlabs.org,
Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Jason M Biils <jason.m.bills@linux.intel.com>,
Milton Miller II <miltonm@us.ibm.com>,
Pavel Machek <pavel@ucw.cz>, Robin Murphy <robin.murphy@arm.com>,
Ryan Chen <ryan_chen@aspeedtech.com>
Subject: [PATCH v11 04/14] dt-bindings: Add bindings document of Aspeed PECI adapter
Date: Wed, 11 Dec 2019 11:46:14 -0800 [thread overview]
Message-ID: <20191211194624.2872-5-jae.hyun.yoo@linux.intel.com> (raw)
In-Reply-To: <20191211194624.2872-1-jae.hyun.yoo@linux.intel.com>
This commit adds bindings document of Aspeed PECI adapter for ASPEED
AST24xx/25xx/26xx SoCs.
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Joel Stanley <joel@jms.id.au>
Cc: Andrew Jeffery <andrew@aj.id.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jason M Biils <jason.m.bills@linux.intel.com>
Cc: Milton Miller II <miltonm@us.ibm.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Robin Murphy <robin.murphy@arm.com>
Cc: Ryan Chen <ryan_chen@aspeedtech.com>
Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
---
Changes since v10:
- Changed documents format to DT schema format so I dropped all review tags.
Please review it again.
.../devicetree/bindings/peci/peci-aspeed.yaml | 124 ++++++++++++++++++
1 file changed, 124 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..0f5c2993fe9b
--- /dev/null
+++ b/Documentation/devicetree/bindings/peci/peci-aspeed.yaml
@@ -0,0 +1,124 @@
+# SPDX-License-Identifier: GPL-2.0
+%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:
+ - Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
+
+properties:
+ compatible:
+ enum:
+ - aspeed,ast2400-peci
+ - aspeed,ast2500-peci
+ - aspeed,ast2600-peci
+
+ reg:
+ maxItems: 1
+
+ "#address-cells":
+ # Required to define a client address.
+ const: 1
+
+ "#size-cells":
+ # Required to define a client address.
+ const: 0
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ description: |
+ Clock source for PECI controller. Should reference the external
+ oscillator clock.
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+ clock-frequency:
+ # Operation frequency of PECI controller in units of Hz.
+ minimum: 187500
+ maximum: 24000000
+
+ 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.
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - minimum: 0
+ maximum: 255
+ default: 1
+
+ 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.
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - minimum: 0
+ maximum: 255
+ default: 1
+
+ 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.
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - minimum: 0
+ maximum: 15
+ default: 8
+
+ cmd-timeout-ms:
+ # Command timeout in units of ms.
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - minimum: 1
+ maximum: 60000
+ default: 1000
+
+required:
+ - compatible
+ - reg
+ - "#address-cells"
+ - "#size-cells"
+ - interrupts
+ - clocks
+ - resets
+ - clock-frequency
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/ast2600-clock.h>
+ peci: bus@1e78b000 {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x0 0x1e78b000 0x60>;
+
+ peci0: peci-bus@0 {
+ compatible = "aspeed,ast2600-peci";
+ reg = <0x0 0x100>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ interrupts = <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&syscon ASPEED_CLK_GATE_REF0CLK>;
+ resets = <&syscon ASPEED_RESET_PECI>;
+ clock-frequency = <24000000>;
+ msg-timing = <1>;
+ addr-timing = <1>;
+ rd-sampling-point = <8>;
+ cmd-timeout-ms = <1000>;
+ };
+ };
+...
--
2.17.1
next prev parent reply other threads:[~2019-12-11 19:46 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-11 19:46 [PATCH v11 00/14] PECI device driver introduction Jae Hyun Yoo
2019-12-11 19:46 ` [PATCH v11 01/14] dt-bindings: Add PECI subsystem document Jae Hyun Yoo
2019-12-18 2:52 ` Rob Herring
2019-12-18 23:12 ` Jae Hyun Yoo
2019-12-11 19:46 ` [PATCH v11 02/14] Documentation: ioctl: Add ioctl numbers for PECI subsystem Jae Hyun Yoo
2019-12-11 19:46 ` [PATCH v11 03/14] peci: Add support for PECI bus driver core Jae Hyun Yoo
2019-12-11 20:18 ` Andy Shevchenko
2019-12-12 0:46 ` Jae Hyun Yoo
2019-12-11 19:46 ` Jae Hyun Yoo [this message]
2019-12-18 2:57 ` [PATCH v11 04/14] dt-bindings: Add bindings document of Aspeed PECI adapter Rob Herring
2019-12-18 23:21 ` Jae Hyun Yoo
2019-12-11 19:46 ` [PATCH v11 05/14] ARM: dts: aspeed: Add PECI node Jae Hyun Yoo
2019-12-11 19:46 ` [PATCH v11 06/14] peci: Add Aspeed PECI adapter driver Jae Hyun Yoo
2019-12-11 20:28 ` Andy Shevchenko
2019-12-12 0:50 ` Jae Hyun Yoo
2019-12-12 8:47 ` Andy Shevchenko
2019-12-12 18:51 ` Jae Hyun Yoo
2019-12-11 19:46 ` [PATCH v11 07/14] dt-bindings: peci: add NPCM PECI documentation Jae Hyun Yoo
2019-12-18 14:42 ` Rob Herring
2019-12-18 23:30 ` Jae Hyun Yoo
2019-12-11 19:46 ` [PATCH v11 08/14] ARM: dts: npcm7xx: Add PECI node Jae Hyun Yoo
2019-12-11 19:46 ` [PATCH v11 09/14] peci: npcm: add NPCM PECI driver Jae Hyun Yoo
2019-12-11 19:46 ` [PATCH v11 10/14] dt-bindings: mfd: Add Intel PECI client bindings document Jae Hyun Yoo
2019-12-11 19:46 ` [PATCH v11 11/14] mfd: intel-peci-client: Add Intel PECI client driver Jae Hyun Yoo
2019-12-16 16:01 ` Lee Jones
2019-12-16 21:57 ` Jae Hyun Yoo
2019-12-11 19:46 ` [PATCH v11 12/14] Documentation: hwmon: Add documents for PECI hwmon drivers Jae Hyun Yoo
2019-12-11 19:46 ` [PATCH v11 13/14] hwmon: Add PECI cputemp driver Jae Hyun Yoo
2019-12-13 6:24 ` Guenter Roeck
2019-12-16 20:43 ` Jae Hyun Yoo
2019-12-11 19:46 ` [PATCH v11 14/14] hwmon: Add PECI dimmtemp driver Jae Hyun Yoo
2019-12-13 6:32 ` Guenter Roeck
2019-12-16 21:04 ` Jae Hyun Yoo
2019-12-16 21:21 ` Guenter Roeck
2019-12-16 22:17 ` Jae Hyun Yoo
2019-12-16 23:27 ` Guenter Roeck
2019-12-16 23:31 ` Jae Hyun Yoo
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