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([2401:4900:892f:f52a:c575:426a:cd40:5f5d]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-826dd688aa7sm14631808b3a.14.2026.02.25.07.02.32 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 25 Feb 2026 07:02:36 -0800 (PST) Message-ID: <4f9f988a-5f3a-463f-aabe-aac1b018bd93@gmail.com> Date: Wed, 25 Feb 2026 20:32:29 +0530 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] dt-bindings: mtd: st,spear600-smi: convert to DT schema To: Rob Herring Cc: Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , Krzysztof Kozlowski , Conor Dooley , linux-mtd@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260122-spear-v1-1-fd44bc79695b@gmail.com> Content-Language: en-US From: Akhila YS In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On 10-02-2026 19:17, Rob Herring wrote: > On Thu, Jan 22, 2026 at 10:23 AM Akhila YS wrote: >> Convert STMicroelectronics SPEAr600 Serial Memory Interface (SMI) >> Controller binding to YAML format. >> >> Signed-off-by: Akhila YS >> --- >> .../devicetree/bindings/mtd/spear_smi.txt | 29 --------- >> .../devicetree/bindings/mtd/st,spear600-smi.yaml | 72 ++++++++++++++++++++++ >> 2 files changed, 72 insertions(+), 29 deletions(-) >> >> diff --git a/Documentation/devicetree/bindings/mtd/spear_smi.txt b/Documentation/devicetree/bindings/mtd/spear_smi.txt >> deleted file mode 100644 >> index c41873e92d26..000000000000 >> --- a/Documentation/devicetree/bindings/mtd/spear_smi.txt >> +++ /dev/null >> @@ -1,29 +0,0 @@ >> -* SPEAr SMI >> - >> -Required properties: >> -- compatible : "st,spear600-smi" >> -- reg : Address range of the mtd chip >> -- #address-cells, #size-cells : Must be present if the device has sub-nodes >> - representing partitions. >> -- interrupts: Should contain the STMMAC interrupts >> -- clock-rate : Functional clock rate of SMI in Hz >> - >> -Optional properties: >> -- st,smi-fast-mode : Flash supports read in fast mode >> - >> -Example: >> - >> - smi: flash@fc000000 { >> - compatible = "st,spear600-smi"; >> - #address-cells = <1>; >> - #size-cells = <1>; >> - reg = <0xfc000000 0x1000>; >> - interrupt-parent = <&vic1>; >> - interrupts = <12>; >> - clock-rate = <50000000>; /* 50MHz */ >> - >> - flash@f8000000 { >> - st,smi-fast-mode; >> - ... >> - }; >> - }; >> diff --git a/Documentation/devicetree/bindings/mtd/st,spear600-smi.yaml b/Documentation/devicetree/bindings/mtd/st,spear600-smi.yaml >> new file mode 100644 >> index 000000000000..8fe27aae7527 >> --- /dev/null >> +++ b/Documentation/devicetree/bindings/mtd/st,spear600-smi.yaml >> @@ -0,0 +1,72 @@ >> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) >> +%YAML 1.2 >> +--- >> +$id: http://devicetree.org/schemas/mtd/st,spear600-smi.yaml# >> +$schema: http://devicetree.org/meta-schemas/core.yaml# >> + >> +title: STMicroelectronics SPEAr600 Serial Memory Interface (SMI) Controller >> + >> +maintainers: >> + - Richard Weinberger >> + >> +description: >> + The SPEAr600 Serial Memory Interface (SMI) is a dedicated serial flash >> + controller supporting up to four chip selects for serial NOR flashes >> + connected in parallel. The controller is memory-mapped and the attached >> + flash devices appear in the CPU address space.The driver >> + (drivers/mtd/devices/spear_smi.c) probes the attached flashes >> + dynamically by sending commands (e.g., RDID) to each bank. >> + Flash sub nodes describe the memory range and optional per-flash >> + properties. >> + >> +allOf: >> + - $ref: mtd.yaml# >> + >> +properties: >> + compatible: >> + const: st,spear600-smi >> + >> + reg: >> + maxItems: 1 >> + >> + interrupts: >> + maxItems: 1 >> + >> + "#address-cells": >> + const: 1 >> + >> + "#size-cells": >> + const: 1 >> + >> + clock-rate: >> + $ref: /schemas/types.yaml#/definitions/uint32 >> + description: Functional clock rate of the SMI controller in Hz. >> + >> + st,smi-fast-mode: >> + type: boolean >> + description: Indicates that the attached flash supports fast read mode. >> + >> +required: >> + - compatible >> + - reg >> + - clock-rate >> + >> +unevaluatedProperties: false >> + >> +examples: >> + - | >> + flash@fc000000 { >> + compatible = "st,spear600-smi"; >> + #address-cells = <1>; >> + #size-cells = <1>; >> + reg = <0xfc000000 0x1000>; >> + interrupt-parent = <&vic1>; >> + interrupts = <12>; >> + clock-rate = <50000000>; /* 50 MHz */ >> + >> + flash@f8000000 { > This is now a warning in linux-next: > > Documentation/devicetree/bindings/mtd/st,spear600-smi.example.dtb: > flash@fc000000 (st,spear600-smi): Unevaluated properties are not > allowed ('flash@f8000000' was unexpected) > from schema $id: http://devicetree.org/schemas/mtd/st,spear600-smi.yaml > > Please send a fix (and test your schemas before sending). Sure, i will resolve that issue and send a next version. > > Rob -- Best Regards, Akhila.