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Tue, 23 Jan 2024 03:09:47 -0800 (PST) Received: from [192.168.1.20] ([178.197.215.66]) by smtp.gmail.com with ESMTPSA id f11-20020adff98b000000b00337d5cd0d8asm12922259wrr.90.2024.01.23.03.09.45 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 23 Jan 2024 03:09:47 -0800 (PST) Message-ID: Date: Tue, 23 Jan 2024 12:09:44 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 1/9] dt-bindings: watchdog: samsung-wdt: deprecate samsung,syscon-phandle Content-Language: en-US To: Peter Griffin , arnd@arndb.de, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, linux@roeck-us.net, wim@linux-watchdog.org, conor+dt@kernel.org, alim.akhtar@samsung.com, jaewon02.kim@samsung.com, chanho61.park@samsung.com, semen.protsenko@linaro.org Cc: kernel-team@android.com, tudor.ambarus@linaro.org, andre.draszik@linaro.org, saravanak@google.com, willmcvicker@google.com, linux-fsd@tesla.com, linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org References: <20240122225710.1952066-1-peter.griffin@linaro.org> <20240122225710.1952066-2-peter.griffin@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 22/01/2024 23:57, Peter Griffin wrote: > The watchdog driver no longer requires a phandle to obtain a regmap > to the PMU registers. So mark this as deprecated. > > Signed-off-by: Peter Griffin > --- > .../devicetree/bindings/watchdog/samsung-wdt.yaml | 15 +-------------- > 1 file changed, 1 insertion(+), 14 deletions(-) > > diff --git a/Documentation/devicetree/bindings/watchdog/samsung-wdt.yaml b/Documentation/devicetree/bindings/watchdog/samsung-wdt.yaml > index 77a5ddd0426e..3970d6bf8576 100644 > --- a/Documentation/devicetree/bindings/watchdog/samsung-wdt.yaml > +++ b/Documentation/devicetree/bindings/watchdog/samsung-wdt.yaml > @@ -56,6 +56,7 @@ properties: > description: > Phandle to the PMU system controller node (in case of Exynos5250, > Exynos5420, Exynos7, Exynos850 and gs101). > + deprecated: true I don't see how your driver handles probe or suspend ordering, so I don't think this is correct approach. Handling of the watchdog requires poking PMU, thus the watchdog device node must have reference to the PMU node. Removing it from DTS makes the hardware representation incomplete, beside mentioned driver issue. Best regards, Krzysztof _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel