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[188.155.201.27]) by smtp.gmail.com with ESMTPSA id b11-20020a17090630cb00b006e83fb1e6b1sm738450ejb.100.2022.04.07.13.58.15 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 07 Apr 2022 13:58:16 -0700 (PDT) Message-ID: <827e5f9c-13ef-08fb-d167-80c6c4ea5631@linaro.org> Date: Thu, 7 Apr 2022 22:58:15 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.7.0 Subject: Re: [PATCH 11/11] arm64: dts: Add Pensando Elba SoC support Content-Language: en-US To: Brad Larson , linux-arm-kernel@lists.infradead.org Cc: arnd@arndb.de, linus.walleij@linaro.org, bgolaszewski@baylibre.com, broonie@kernel.org, fancer.lancer@gmail.com, adrian.hunter@intel.com, ulf.hansson@linaro.org, olof@lixom.net, dac2@pensando.io, linux-gpio@vger.kernel.org, linux-spi@vger.kernel.org, linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20220406233648.21644-1-brad@pensando.io> <20220406233648.21644-12-brad@pensando.io> From: Krzysztof Kozlowski In-Reply-To: <20220406233648.21644-12-brad@pensando.io> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org On 07/04/2022 01:36, Brad Larson wrote: > Add Pensando common and Elba SoC specific device nodes > > Signed-off-by: Brad Larson > --- > Change from V3: > - Changed to dual copyright (GPL-2.0+ OR MIT) > - Minor changes from review input Thank you for your patch. There is something to discuss/improve. (...) > +&i2c0 { > + clock-frequency = <100000>; > + status = "okay"; > + rtc@51 { > + compatible = "nxp,pcf85263"; > + reg = <0x51>; > + }; > +}; > + > +&spi0 { > + num-cs = <4>; > + cs-gpios = <0>, <0>, <&porta 1 GPIO_ACTIVE_LOW>, > + <&porta 7 GPIO_ACTIVE_LOW>; > + status = "okay"; > + spi0_cs0@0 { Generic node name needed matching the class of a devicxe. > + compatible = "semtech,sx1301"; /* Enable spidev */ This comment is a bit odd... did you just use random compatible from spidev instead of defining proper compatible? > + #address-cells = <1>; > + #size-cells = <1>; Why address/size cells? > + spi-max-frequency = <12000000>; > + reg = <0>; Please put reg just after compatible. It's the most common pattern. > + }; > + > + spi0_cs1@1 { > + compatible = "semtech,sx1301"; > + #address-cells = <1>; > + #size-cells = <1>; > + spi-max-frequency = <12000000>; > + reg = <1>; > + }; > + (...) > + > + emmc: mmc@30440000 { > + compatible = "pensando,elba-sd4hc", "cdns,sd4hc"; > + clocks = <&emmc_clk>; > + interrupts = ; > + reg = <0x0 0x30440000 0x0 0x10000>, > + <0x0 0x30480044 0x0 0x4>; /* byte-lane ctrl */ > + cdns,phy-input-delay-sd-highspeed = <0x4>; > + cdns,phy-input-delay-legacy = <0x4>; > + cdns,phy-input-delay-sd-uhs-sdr50 = <0x6>; > + cdns,phy-input-delay-sd-uhs-ddr50 = <0x16>; > + mmc-ddr-1_8v; > + status = "disabled"; > + }; > + > + mssoc: mssoc@307c0000 { Generic node name. > + compatible = "syscon", "simple-mfd"; This does not look correct. Syscon is okay, but why do you need simple-mfd (there are no children here)? > + reg = <0x0 0x307c0000 0x0 0x3000>; > + }; > + }; > +}; Best regards, Krzysztof