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[188.155.181.108]) by smtp.gmail.com with ESMTPSA id el9-20020a170907284900b006cf8e3c83e3sm3243768ejc.168.2022.02.27.02.24.14 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 27 Feb 2022 02:24:14 -0800 (PST) Message-ID: <8ba5fb1b-2b5f-e625-0dbe-2acc3b6656e7@canonical.com> Date: Sun, 27 Feb 2022 11:24:13 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.5.0 Subject: Re: [PATCH v2 01/15] dt-bindings: ufs: add common platform bindings Content-Language: en-US To: Rob Herring Cc: Alim Akhtar , Avri Altman , Andy Gross , Bjorn Andersson , Wei Xu , Nishanth Menon , Vignesh Raghavendra , Tero Kristo , "James E.J. Bottomley" , "Martin K. Petersen" , Jan Kotas , Li Wei , Stanley Chu , Yaniv Gardi , linux-scsi@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-mediatek@lists.infradead.org References: <20220222145854.358646-1-krzysztof.kozlowski@canonical.com> <20220222145854.358646-2-krzysztof.kozlowski@canonical.com> From: Krzysztof Kozlowski In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org On 25/02/2022 20:26, Rob Herring wrote: > On Tue, Feb 22, 2022 at 03:58:40PM +0100, Krzysztof Kozlowski wrote: >> Add bindings for common parts (platform) of Universal Flash Storage >> (UFS) Host Controllers in dtschema format. >> >> The 'freq-table-hz' is not correct in dtschema, because '-hz' suffix >> defines uint32 type, not an array. Therefore deprecate 'freq-table-hz' >> and use 'freq-table' instead. > > -hz is an array type. We can extend it to matrix if needed. > > I do think this property is a bit questionable. Do we really need a > minimum in DT and if not, wouldn't assigned-clocks-rate work? Or an OPP > table. > I think the proper solution is OPP table, see also comments from Bjorn: https://lore.kernel.org/all/YhUodbzxx4wbr+gy@ripper/ I would rather refrain from converting it to OPP tables, because I won't be able to test any changes in the driver. Best regards, Krzysztof