From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rob Herring Date: Tue, 3 Jul 2018 10:51:48 -0600 Subject: [PATCH linux-next v6 04/13] dt-bindings: Add a document of PECI adapter driver for ASPEED AST24xx/25xx SoCs In-Reply-To: <20180621194024.20771-1-jae.hyun.yoo@linux.intel.com> References: <20180621193721.20588-1-jae.hyun.yoo@linux.intel.com> <20180621194024.20771-1-jae.hyun.yoo@linux.intel.com> Message-ID: <20180703165148.GA11628@rob-hp-laptop> List-Id: To: linux-aspeed@lists.ozlabs.org MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit On Thu, Jun 21, 2018 at 12:40:24PM -0700, Jae Hyun Yoo wrote: > This commit adds a dt-bindings document of PECI adapter driver for ASPEED > AST24xx/25xx SoCs. > > Signed-off-by: Jae Hyun Yoo > Reviewed-by: Haiyue Wang > Reviewed-by: James Feist > Reviewed-by: Vernon Mauery > Cc: Benjamin Herrenschmidt > Cc: Greg KH > Cc: Jason M Biils > Cc: Milton Miller II > Cc: Pavel Machek > Cc: Robin Murphy > Cc: Ryan Chen > --- > .../devicetree/bindings/peci/peci-aspeed.txt | 57 +++++++++++++++++++ > 1 file changed, 57 insertions(+) > create mode 100644 Documentation/devicetree/bindings/peci/peci-aspeed.txt > > diff --git a/Documentation/devicetree/bindings/peci/peci-aspeed.txt b/Documentation/devicetree/bindings/peci/peci-aspeed.txt > new file mode 100644 > index 000000000000..8c35f905589d > --- /dev/null > +++ b/Documentation/devicetree/bindings/peci/peci-aspeed.txt > @@ -0,0 +1,57 @@ > +Device tree configuration for PECI buses on the AST24XX and AST25XX SoCs. > + > +Required properties: > +- compatible : Should be "aspeed,ast2400-peci" or "aspeed,ast2500-peci" > + - aspeed,ast2400-peci: ASPEED AST2400 family PECI > + controller > + - aspeed,ast2500-peci: ASPEED AST2500 family PECI > + controller Just this is sufficient: Should be one of: "aspeed,ast2400-peci" "aspeed,ast2500-peci" With that, Reviewed-by: Rob Herring > +- reg : Should contain PECI controller registers location and > + length. > +- #address-cells : Should be <1> required to define a client address. > +- #size-cells : Should be <0> required to define a client address. > +- interrupts : Should contain PECI controller interrupt. > +- clocks : Should contain clock source for PECI controller. Should > + reference the external oscillator clock in the second > + cell. > +- resets : Should contain phandle to reset controller with the reset > + number in the second cell. > +- clock-frequency : Should contain the operation frequency of PECI controller > + in units of Hz. > + 187500 ~ 24000000 > + > +Optional properties: > +- msg-timing : 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. > + 0 ~ 255 (default: 1) > +- addr-timing : 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. > + 0 ~ 255 (default: 1) > +- rd-sampling-point : 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. > + 0 ~ 15 (default: 8) > +- cmd-timeout-ms : Command timeout in units of ms. > + 1 ~ 60000 (default: 1000) > + > +Example: > + peci0: peci-bus at 0 { > + compatible = "aspeed,ast2500-peci"; > + reg = <0x0 0x60>; > + #address-cells = <1>; > + #size-cells = <0>; > + interrupts = <15>; > + clocks = <&syscon ASPEED_CLK_GATE_REFCLK>; > + 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 > From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Authentication-Results: lists.ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=gmail.com (client-ip=209.85.218.68; helo=mail-oi0-f68.google.com; envelope-from=robherring2@gmail.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=fail (p=none dis=none) header.from=kernel.org Received: from mail-oi0-f68.google.com (mail-oi0-f68.google.com [209.85.218.68]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 41KqsS2rpNzF1MY; Wed, 4 Jul 2018 02:51:55 +1000 (AEST) Received: by mail-oi0-f68.google.com with SMTP id k12-v6so5149418oiw.8; Tue, 03 Jul 2018 09:51:55 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=sBs1maIYDMZO+36cSG4e8VCZSRVYH39XH2ie5QV3ivs=; b=sYEcxVRPWaKx4iXc9L6gHzbqUbTCFY6QbDpN3FCzTsuhAF7V8gIDonKsrIEchFELjF PzZ8N0ZaOCbKTG+qiMsw/g6Pzh4cn4TMeUIr5F9i/ekCB+bh4IT20ZzxIGOHkZ1QjVY3 6qyIRxXFH6d5HldxFCWSZMO61G83nxUhAck/CTFJO523TUqvJgkc9yCpzqUwC17IEOIn 0gVmwoKM6WAihOX3fXTVCxm25mBK6iL+Zjp16WM7u22Pjo6HTe1VaIAKQc4bAXhnaU7C Bnh3jUnqQPQJFf4UdW15GquX/9AlBC3J1eT0K1kGgxYXpYVxvv4uM5FdLq5zG06KQDuR M/eQ== X-Gm-Message-State: APt69E2D0n5yoIeKxVInOAmNRFv0q1M9hWtQKz+zcoTLQ5E5Cqrm7Iqa RltOFduxsQQTS7CXzhN3kQ== X-Google-Smtp-Source: AAOMgpcyZtJO9E1h67U7/suHDOisQ77cnLmVMUdn8xqaj5+MMRcL+O9C87BSgSs+HArlBq3aryuObg== X-Received: by 2002:aca:f5d1:: with SMTP id t200-v6mr14876493oih.12.1530636713668; Tue, 03 Jul 2018 09:51:53 -0700 (PDT) Received: from localhost (24-223-123-72.static.usa-companies.net. [24.223.123.72]) by smtp.gmail.com with ESMTPSA id r3-v6sm667535oig.49.2018.07.03.09.51.52 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Tue, 03 Jul 2018 09:51:52 -0700 (PDT) Date: Tue, 3 Jul 2018 10:51:48 -0600 From: Rob Herring To: Jae Hyun Yoo Cc: Jason M Biils , Mark Rutland , Joel Stanley , Andrew Jeffery , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-aspeed@lists.ozlabs.org, linux-kernel@vger.kernel.org, openbmc@lists.ozlabs.org, Benjamin Herrenschmidt , Greg KH , Milton Miller II , Pavel Machek , Robin Murphy , Ryan Chen Subject: Re: [PATCH linux-next v6 04/13] dt-bindings: Add a document of PECI adapter driver for ASPEED AST24xx/25xx SoCs Message-ID: <20180703165148.GA11628@rob-hp-laptop> References: <20180621193721.20588-1-jae.hyun.yoo@linux.intel.com> <20180621194024.20771-1-jae.hyun.yoo@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180621194024.20771-1-jae.hyun.yoo@linux.intel.com> User-Agent: Mutt/1.9.4 (2018-02-28) X-BeenThere: openbmc@lists.ozlabs.org X-Mailman-Version: 2.1.27 Precedence: list List-Id: Development list for OpenBMC List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 03 Jul 2018 16:51:56 -0000 On Thu, Jun 21, 2018 at 12:40:24PM -0700, Jae Hyun Yoo wrote: > This commit adds a dt-bindings document of PECI adapter driver for ASPEED > AST24xx/25xx SoCs. > > Signed-off-by: Jae Hyun Yoo > Reviewed-by: Haiyue Wang > Reviewed-by: James Feist > Reviewed-by: Vernon Mauery > Cc: Benjamin Herrenschmidt > Cc: Greg KH > Cc: Jason M Biils > Cc: Milton Miller II > Cc: Pavel Machek > Cc: Robin Murphy > Cc: Ryan Chen > --- > .../devicetree/bindings/peci/peci-aspeed.txt | 57 +++++++++++++++++++ > 1 file changed, 57 insertions(+) > create mode 100644 Documentation/devicetree/bindings/peci/peci-aspeed.txt > > diff --git a/Documentation/devicetree/bindings/peci/peci-aspeed.txt b/Documentation/devicetree/bindings/peci/peci-aspeed.txt > new file mode 100644 > index 000000000000..8c35f905589d > --- /dev/null > +++ b/Documentation/devicetree/bindings/peci/peci-aspeed.txt > @@ -0,0 +1,57 @@ > +Device tree configuration for PECI buses on the AST24XX and AST25XX SoCs. > + > +Required properties: > +- compatible : Should be "aspeed,ast2400-peci" or "aspeed,ast2500-peci" > + - aspeed,ast2400-peci: ASPEED AST2400 family PECI > + controller > + - aspeed,ast2500-peci: ASPEED AST2500 family PECI > + controller Just this is sufficient: Should be one of: "aspeed,ast2400-peci" "aspeed,ast2500-peci" With that, Reviewed-by: Rob Herring > +- reg : Should contain PECI controller registers location and > + length. > +- #address-cells : Should be <1> required to define a client address. > +- #size-cells : Should be <0> required to define a client address. > +- interrupts : Should contain PECI controller interrupt. > +- clocks : Should contain clock source for PECI controller. Should > + reference the external oscillator clock in the second > + cell. > +- resets : Should contain phandle to reset controller with the reset > + number in the second cell. > +- clock-frequency : Should contain the operation frequency of PECI controller > + in units of Hz. > + 187500 ~ 24000000 > + > +Optional properties: > +- msg-timing : 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. > + 0 ~ 255 (default: 1) > +- addr-timing : 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. > + 0 ~ 255 (default: 1) > +- rd-sampling-point : 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. > + 0 ~ 15 (default: 8) > +- cmd-timeout-ms : Command timeout in units of ms. > + 1 ~ 60000 (default: 1000) > + > +Example: > + peci0: peci-bus@0 { > + compatible = "aspeed,ast2500-peci"; > + reg = <0x0 0x60>; > + #address-cells = <1>; > + #size-cells = <0>; > + interrupts = <15>; > + clocks = <&syscon ASPEED_CLK_GATE_REFCLK>; > + 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 > From mboxrd@z Thu Jan 1 00:00:00 1970 From: robh@kernel.org (Rob Herring) Date: Tue, 3 Jul 2018 10:51:48 -0600 Subject: [PATCH linux-next v6 04/13] dt-bindings: Add a document of PECI adapter driver for ASPEED AST24xx/25xx SoCs In-Reply-To: <20180621194024.20771-1-jae.hyun.yoo@linux.intel.com> References: <20180621193721.20588-1-jae.hyun.yoo@linux.intel.com> <20180621194024.20771-1-jae.hyun.yoo@linux.intel.com> Message-ID: <20180703165148.GA11628@rob-hp-laptop> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Thu, Jun 21, 2018 at 12:40:24PM -0700, Jae Hyun Yoo wrote: > This commit adds a dt-bindings document of PECI adapter driver for ASPEED > AST24xx/25xx SoCs. > > Signed-off-by: Jae Hyun Yoo > Reviewed-by: Haiyue Wang > Reviewed-by: James Feist > Reviewed-by: Vernon Mauery > Cc: Benjamin Herrenschmidt > Cc: Greg KH > Cc: Jason M Biils > Cc: Milton Miller II > Cc: Pavel Machek > Cc: Robin Murphy > Cc: Ryan Chen > --- > .../devicetree/bindings/peci/peci-aspeed.txt | 57 +++++++++++++++++++ > 1 file changed, 57 insertions(+) > create mode 100644 Documentation/devicetree/bindings/peci/peci-aspeed.txt > > diff --git a/Documentation/devicetree/bindings/peci/peci-aspeed.txt b/Documentation/devicetree/bindings/peci/peci-aspeed.txt > new file mode 100644 > index 000000000000..8c35f905589d > --- /dev/null > +++ b/Documentation/devicetree/bindings/peci/peci-aspeed.txt > @@ -0,0 +1,57 @@ > +Device tree configuration for PECI buses on the AST24XX and AST25XX SoCs. > + > +Required properties: > +- compatible : Should be "aspeed,ast2400-peci" or "aspeed,ast2500-peci" > + - aspeed,ast2400-peci: ASPEED AST2400 family PECI > + controller > + - aspeed,ast2500-peci: ASPEED AST2500 family PECI > + controller Just this is sufficient: Should be one of: "aspeed,ast2400-peci" "aspeed,ast2500-peci" With that, Reviewed-by: Rob Herring > +- reg : Should contain PECI controller registers location and > + length. > +- #address-cells : Should be <1> required to define a client address. > +- #size-cells : Should be <0> required to define a client address. > +- interrupts : Should contain PECI controller interrupt. > +- clocks : Should contain clock source for PECI controller. Should > + reference the external oscillator clock in the second > + cell. > +- resets : Should contain phandle to reset controller with the reset > + number in the second cell. > +- clock-frequency : Should contain the operation frequency of PECI controller > + in units of Hz. > + 187500 ~ 24000000 > + > +Optional properties: > +- msg-timing : 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. > + 0 ~ 255 (default: 1) > +- addr-timing : 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. > + 0 ~ 255 (default: 1) > +- rd-sampling-point : 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. > + 0 ~ 15 (default: 8) > +- cmd-timeout-ms : Command timeout in units of ms. > + 1 ~ 60000 (default: 1000) > + > +Example: > + peci0: peci-bus at 0 { > + compatible = "aspeed,ast2500-peci"; > + reg = <0x0 0x60>; > + #address-cells = <1>; > + #size-cells = <0>; > + interrupts = <15>; > + clocks = <&syscon ASPEED_CLK_GATE_REFCLK>; > + 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 >