From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4A0D028691; Fri, 29 Nov 2024 15:14:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732893299; cv=none; b=IEuCAcbRJcPg/XYtLJATVmkWu+09Her5i6ejUMVFI31hKmO3pbg/bhd1kLB1KgnvRfL5wbSRzkUyFfuPrNgzP3ywtxZOzInIroT1ZTW+DCa9kOFVTax5N8XJSmVLQOlYF6+y2/YlXWxNoO3Lh00cLcq2ytuMgfkva/S7QkACHms= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732893299; c=relaxed/simple; bh=Fu73ZvJQgwTOaD6ZnCdF4NOgkna/X4Iq7KcREPusr1g=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=ZWWCVUatBNT7LVDwEnQ/4hlg8Cbceo+cBVVJJ5QNVvdNIVUxMJ6wJDk+TmF3x9VONGRWXl4iEKo7336zU56XzOSFSmo75TQ6qxVZYeMikB3+8WcsHn/+mQ27n/RI/gQujr2Dwis/iYuS4pO7oy56C8AtucKoexsSGbhdk+X12K8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Yxnx/jgB; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Yxnx/jgB" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A6BA1C4CECF; Fri, 29 Nov 2024 15:14:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1732893298; bh=Fu73ZvJQgwTOaD6ZnCdF4NOgkna/X4Iq7KcREPusr1g=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=Yxnx/jgBSYGoc8uegwkEdA/UNg2znGgJ7Z8uUwfauf2YZSwlbKtYJfE8LMcmA7Q6A wCcqHqQWpcUUDMdwOXGl6oq6ALKd+ea8RMybphpEIUsWwc22PEkqn5gIqrvp8ZjOvC LaJzhoBcIYq7xOuanXy5vwzChP49kF0h6fdztOnAVIPLY+KleUyY2nUCLNJBRcVzsk IAqPgVi8vNGfWbSwz8w4zfRwOCgnfTwiMTLKPkjRl7p9afc3Tlvsk9GeqrYRwJcj/V O8nFh01SiXEMqiJurAsDZZ4+sPIUtx4mYxuc/RrdaYx6vt8WozjlBTLwyt5xXXoiXU 1LsK7KUhuAZzA== Message-ID: Date: Fri, 29 Nov 2024 16:14:50 +0100 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v5 1/4] dt-bindindgs: i2c: qcom,i2c-geni: Document shared flag To: Mukesh Kumar Savaliya , konrad.dybcio@linaro.org, andersson@kernel.org, andi.shyti@kernel.org, linux-arm-msm@vger.kernel.org, dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org, conor+dt@kernel.org, agross@kernel.org, devicetree@vger.kernel.org, vkoul@kernel.org, linux@treblig.org, dan.carpenter@linaro.org, Frank.Li@nxp.com, konradybcio@kernel.org, bryan.odonoghue@linaro.org, krzk+dt@kernel.org, robh@kernel.org Cc: quic_vdadhani@quicinc.com References: <20241129144357.2008465-1-quic_msavaliy@quicinc.com> <20241129144357.2008465-2-quic_msavaliy@quicinc.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 29/11/2024 15:43, Mukesh Kumar Savaliya wrote: > Adds qcom,shared-se flag usage. Use this flag when I2C serial controller > needs to be shared in multiprocessor system(APPS,Modem,ADSP) environment. > > SE(Serial Engine HW controller acting as protocol master controller) is an > I2C controller. Basically a programmable SERDES(serializer/deserializer) > coupled with data DMA entity, capable in handling a bus protocol, and data > moves to/from system memory. > > Two clients from different processors can share an I2C controller for same > slave device OR their owned slave devices. Assume I2C Slave EEPROM device > connected with I2C controller. Each client from ADSP SS and APPS Linux SS > can perform i2c transactions. > > Transfer gets serialized by Lock TRE + DMA xfer + Unlock TRE at HW level. > > Signed-off-by: Mukesh Kumar Savaliya > --- > .../devicetree/bindings/i2c/qcom,i2c-geni-qcom.yaml | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/Documentation/devicetree/bindings/i2c/qcom,i2c-geni-qcom.yaml b/Documentation/devicetree/bindings/i2c/qcom,i2c-geni-qcom.yaml > index 9f66a3bb1f80..88682a333399 100644 > --- a/Documentation/devicetree/bindings/i2c/qcom,i2c-geni-qcom.yaml > +++ b/Documentation/devicetree/bindings/i2c/qcom,i2c-geni-qcom.yaml > @@ -60,6 +60,14 @@ properties: > power-domains: > maxItems: 1 > > + qcom,shared-se: > + description: True if I2C controller is shared between two or more system processors. > + SE(Serial Engine HW controller working as protocol master controller) is an > + I2C controller. Basically, a programmable SERDES(serializer/deserializer) > + coupled with data DMA entity, capable in handling a bus protocol, and data > + moves to/from system memory. I replied why I NAK it. You did not really address my concerns, but replied with some generic statement. After that generic statement you gave me exactly 0 seconds to react and you sent v5. Really 0 seconds to respond to your comment, while you give yourself days to respond to my comments. This is not how it works. NAK Implement previous feedback. Don't send any new versions before you understand what you have to do and get some agreement with reviewers. Best regards, Krzysztof