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Wed, 08 Sep 2021 00:37:19 -0700 (PDT) Received: from [192.168.3.211] ([79.98.113.217]) by smtp.gmail.com with ESMTPSA id s12sm1285746wru.41.2021.09.08.00.37.17 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 08 Sep 2021 00:37:18 -0700 (PDT) Subject: Re: [PATCH 2/6] dt-bindings: mmc: cdns: match MPFS MMC/SDHCI controller To: Conor.Dooley@microchip.com, robh@kernel.org Cc: atish.patra@wdc.com, ulf.hansson@linaro.org, paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, geert+renesas@glider.be, yash.shah@sifive.com, yamada.masahiro@socionext.com, piotrs@cadence.com, linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org References: <20210819154436.117798-1-krzysztof.kozlowski@canonical.com> <20210819154436.117798-2-krzysztof.kozlowski@canonical.com> <9423ddab-4635-ea15-7a9d-dbcf1bc215dc@canonical.com> From: Krzysztof Kozlowski Message-ID: Date: Wed, 8 Sep 2021 09:37:17 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.13.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 06/09/2021 10:38, Conor.Dooley@microchip.com wrote: > On 30/08/2021 16:09, Rob Herring wrote: >> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe >> >> On Tue, Aug 24, 2021 at 2:02 PM Krzysztof Kozlowski >> wrote: >>> On 24/08/2021 16:33, Rob Herring wrote: >>>> On Thu, Aug 19, 2021 at 05:44:32PM +0200, Krzysztof Kozlowski wrote: >>>>> The Microchip MPFS Icicle Kit uses Cadence SD/SDIO/eMMC Host Controller >>>>> without any additional vendor compatible: >>>> I think the lack of vendor compatible is the error here. Experience has >>>> shown that vendor specific compatibles are needed for licensed IP. >>>> >>> In such case this could be: >>> 1. a specific "microchip,mpfs250t-sd4hc", which >>> seems to be on MPFS Icicle Kit: >>> https://www.digikey.co.uk/en/product-highlight/m/microchip-technology/mpfs-icicle-kit-es--polarfire-soc-fpga-icicle-kit >>> >>> 2. or a generic "microchip,mpfs-sd4hc" >>> >>> Any hints here? >> Best for a Microchip person to answer, but sure there's some existing >> compatible strings for other blocks on this chip to follow the same >> pattern. >> >> Rob > > #2 would be ideal since the controller doesn't change across the part > range, the 250t bit in the part name just covers the size/configuration > of the FPGA. Thanks! I'll go with the microchip,mpfs-sd4hc. Best regards, Krzysztof