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Mon, 15 Jan 2024 23:52:18 -0800 (PST) Received: from [192.168.1.20] ([178.197.215.66]) by smtp.gmail.com with ESMTPSA id mc12-20020a170906eb4c00b00a2b85ef0ca3sm6114472ejb.202.2024.01.15.23.52.16 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 15 Jan 2024 23:52:17 -0800 (PST) Message-ID: <95e2b70e-c6fb-4c10-b341-efd1f9cbf6e6@linaro.org> Date: Tue, 16 Jan 2024 08:52:15 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [EXT] Re: [PATCH v3 4/6] dt-bindings: usb: ci-hdrc-usb2: add compatible and clock-names restriction for imx93 Content-Language: en-US To: Xu Yang , "gregkh@linuxfoundation.org" , "robh+dt@kernel.org" , "krzysztof.kozlowski+dt@linaro.org" , "conor+dt@kernel.org" , "shawnguo@kernel.org" , "s.hauer@pengutronix.de" , "kernel@pengutronix.de" , "festevam@gmail.com" Cc: dl-linux-imx , "devicetree@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , Jun Li , "linux-usb@vger.kernel.org" References: <20240112111747.1250915-1-xu.yang_2@nxp.com> <20240112111747.1250915-4-xu.yang_2@nxp.com> <3ade5e2c-e3dc-4cf4-9c12-2487e30a2253@linaro.org> From: Krzysztof Kozlowski Autocrypt: addr=krzysztof.kozlowski@linaro.org; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 16/01/2024 08:49, Xu Yang wrote: > Hi Krzysztof, > >> >> On 12/01/2024 12:17, Xu Yang wrote: >>> The i.MX93 needs a wakup clock to work properly. This will add compatible >>> and restriction for i.MX93 platform. >>> >>> Signed-off-by: Xu Yang >>> >>> --- >>> Changes in v2: >>> - no changes >>> Changes in v3: >>> - add clocks restriction >>> --- >>> .../devicetree/bindings/usb/ci-hdrc-usb2.yaml | 16 ++++++++++++++++ >>> 1 file changed, 16 insertions(+) >>> >>> diff --git a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.yaml b/Documentation/devicetree/bindings/usb/ci- >> hdrc-usb2.yaml >>> index b7e664f7395b..6e75099b6394 100644 >>> --- a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.yaml >>> +++ b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.yaml >>> @@ -57,6 +57,7 @@ properties: >>> - enum: >>> - fsl,imx8mm-usb >>> - fsl,imx8mn-usb >>> + - fsl,imx93-usb >>> - const: fsl,imx7d-usb >>> - const: fsl,imx27-usb >>> - items: >>> @@ -412,6 +413,21 @@ allOf: >>> samsung,picophy-pre-emp-curr-control: false >>> samsung,picophy-dc-vol-level-adjust: false >>> >>> + - if: >>> + properties: >>> + compatible: >>> + contains: >>> + const: fsl,imx93-usb >>> + then: >>> + properties: >>> + clock-names: >>> + items: >>> + - const: usb_ctrl_root_clk >>> + - const: usb_wakeup_clk >>> + clocks: >>> + minItems: 2 >>> + maxItems: 2 >> >> Nothing improved regarding my comments. Why do you allow >> any/unspecific/unconstrain interrupts and reg? >> >> You said: >> "However, reset, reg and interrupts property is not special for imx93." >> but what does it even mean? How they can be special or not special? >> >> My comments from previous version apply. If you do not want to work on >> existing technical debt, BTW added by another NXP employee, then I will >> NAK any new submissions. > > You want me to adjust below properties to be more common properties > and add device specific limitations, right? Yes > > --- > reg: > minItems: 1 > maxItems: 2 > > interrupts: > minItems: 1 > maxItems: 2 > > clocks: > minItems: 1 > maxItems: 3 > > clock-names: > minItems: 1 > maxItems: 3 > --- > > For most of the devices, property reg, interrupts, clocks and clock-names > has 1 item. So these properties can set maxItems to 1. For special devices, > I should list them standalone, is this your expectation? Just like you constrain clocks for new variant, your variant should have constrained reg, interrupts and whatever else is there variable. I don't require fixing all the devices in this binding, but at least your new one and preferably other NXP as well. Best regards, Krzysztof _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel