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Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.11.2 Subject: Re: [PATCH 2/7] dt-bindings: pwm: restrict node name suffixes Content-Language: en-US To: =?UTF-8?Q?Uwe_Kleine-K=c3=b6nig?= Cc: Vinod Koul , Kishon Vijay Abraham I , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Thierry Reding , Alessandro Zummo , Alexandre Belloni , Srinivas Kandagatla , Mark Brown , Dipen Patel , Wim Van Sebroeck , Guenter Roeck , Dilip Kota , linux-phy@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pwm@vger.kernel.org, linux-rtc@vger.kernel.org, alsa-devel@alsa-project.org, linux-spi@vger.kernel.org, timestamp@lists.linux.dev, linux-watchdog@vger.kernel.org, Rob Herring , Tony Lindgren , Oleksij Rempel References: <20230530144851.92059-1-krzysztof.kozlowski@linaro.org> <20230530144851.92059-3-krzysztof.kozlowski@linaro.org> <20230607073652.hoyrernfcuoryrqs@pengutronix.de> From: Krzysztof Kozlowski In-Reply-To: <20230607073652.hoyrernfcuoryrqs@pengutronix.de> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On 07/06/2023 09:36, Uwe Kleine-König wrote: > On Tue, May 30, 2023 at 04:48:46PM +0200, Krzysztof Kozlowski wrote: >> Make the pattern matching node names a bit stricter to improve DTS >> consistency. The pattern is restricted to: >> 1. Only one unit address or one -N suffix, >> 2. -N suffixes to decimal numbers. >> >> Suggested-by: Rob Herring >> Signed-off-by: Krzysztof Kozlowski > >> >> --- >> >> Cc: Tony Lindgren >> Cc: Oleksij Rempel >> --- >> Documentation/devicetree/bindings/pwm/pwm.yaml | 2 +- >> 1 file changed, 1 insertion(+), 1 deletion(-) >> >> diff --git a/Documentation/devicetree/bindings/pwm/pwm.yaml b/Documentation/devicetree/bindings/pwm/pwm.yaml >> index 3c01f85029e5..abd9fa873354 100644 >> --- a/Documentation/devicetree/bindings/pwm/pwm.yaml >> +++ b/Documentation/devicetree/bindings/pwm/pwm.yaml >> @@ -13,7 +13,7 @@ select: false >> >> properties: >> $nodename: >> - pattern: "^pwm(@.*|-[0-9a-f])*$" >> + pattern: "^pwm(@.*|-([0-9]|[1-9][0-9]+))?$" > > With this patch we forbid now the following patterns: > > pwm-[0-9a-f][@-].* > pwm-0[0-9a-f]+ > pwm-[a-f]([@-].*)? Yes, this was discussed last time: https://lore.kernel.org/all/20221127182232.GA128974-robh@kernel.org/ > > Checking for such names: > > $ git grep -oP '\bpwm-([0-9a-f][@-].*|0[0-9a-f]+|[0-9]*[a-f][0-9a-f]*)(*pla:\s*\{)' arch/*/boot/dts > arch/arm/boot/dts/meson8.dtsi:pwm-f-ao > arch/arm/boot/dts/meson8.dtsi:pwm-e > arch/arm/boot/dts/meson8b.dtsi:pwm-d > arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-a > arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-b-x7 > arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-b-x19 > arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-c-c > arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-c-x5 > arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-c-x8 > arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-d-x3 > arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-d-x6 > arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-e > arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-f-z > arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-f-a > arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-f-x > arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-f-h > arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi:pwm-a-e Are you sure these are pwms, not pins? > > These are all pinmux-settings and no pwm nodes, so the change is fine. > (But arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi isn't properly > sorted alphabetically.) Exactly... > > Reviewed-by: Uwe Kleine-König Best regards, Krzysztof