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Tue, 11 Apr 2023 17:25:23 +0000 Received: from nalasex01c.na.qualcomm.com (nalasex01c.na.qualcomm.com [10.47.97.35]) by NALASPPMTA03.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 33BHPMIW003432 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 11 Apr 2023 17:25:22 GMT Received: from [10.110.88.83] (10.80.80.8) by nalasex01c.na.qualcomm.com (10.47.97.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.42; Tue, 11 Apr 2023 10:25:21 -0700 Message-ID: <823f6057-7fc5-4600-e078-a2d04e82db3e@quicinc.com> Date: Tue, 11 Apr 2023 10:25:21 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.9.1 Subject: Re: [PATCH v2 1/2] dt-bindings: firmware: arm,scmi: support parameter passing in smc/hvc To: Krzysztof Kozlowski , CC: , , , , , , References: <20230409181918.29270-1-quic_nkela@quicinc.com> <20230410182058.8949-1-quic_nkela@quicinc.com> <20230410182058.8949-2-quic_nkela@quicinc.com> <85d61b1a-2017-cab5-8a6c-71714aecb455@linaro.org> Content-Language: en-US From: Nikunj Kela In-Reply-To: <85d61b1a-2017-cab5-8a6c-71714aecb455@linaro.org> X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01c.na.qualcomm.com (10.47.97.35) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: 1j2xR3GP6wvQgXydf9FtNMM1pNURhw6V X-Proofpoint-ORIG-GUID: 1j2xR3GP6wvQgXydf9FtNMM1pNURhw6V X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.942,Hydra:6.0.573,FMLib:17.11.170.22 definitions=2023-04-11_11,2023-04-11_02,2023-02-09_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=897 mlxscore=0 suspectscore=0 priorityscore=1501 adultscore=0 bulkscore=0 phishscore=0 malwarescore=0 spamscore=0 clxscore=1015 impostorscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2303200000 definitions=main-2304110159 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230411_102531_483031_4001C884 X-CRM114-Status: GOOD ( 14.42 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 4/11/2023 10:18 AM, Krzysztof Kozlowski wrote: > On 10/04/2023 20:20, Nikunj Kela wrote: >> Currently, smc/hvc calls are made with smc-id only. The parameters are >> all set to zeros. This patch defines two optional device tree bindings, >> that can be used to pass parameters in smc/hvc calls. >> >> This is useful when multiple scmi instances are used with common smc-id. >> >> Signed-off-by: Nikunj Kela > Since you sent v2 before our discussion finished, let me answer here: > this does not look like property for DT. Do not send new patches without > giving reviewers chance to respond. Ok. My rationale on that is, if we allow smc-id which goes in r0/w0/x0 registers in smc/hvc call to be part of dtb, then we should allow parameters which go in r1/w1/x1 to r6/w6/x6 register to be part of dtb. If you have an alternative suggestion, I am all ears! > Best regards, > Krzysztof > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel