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([2a02:810d:15c0:828:45c4:46be:ec71:4a51]) by smtp.gmail.com with ESMTPSA id z11-20020a509e0b000000b004aee4e2a56esm127121ede.0.2023.03.10.06.41.54 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 10 Mar 2023 06:41:54 -0800 (PST) Message-ID: Date: Fri, 10 Mar 2023 15:41:53 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.8.0 Subject: Re: [PATCH 2/6] dt-bindings: power: pd-samsung: Allow pd nodes to be children of PMU Content-Language: en-US To: Sam Protsenko , Rob Herring Cc: Alim Akhtar , Marek Szyprowski , Chanwoo Choi , Chanho Park , David Virag , linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20230308230931.27261-1-semen.protsenko@linaro.org> <20230308230931.27261-3-semen.protsenko@linaro.org> From: Krzysztof Kozlowski In-Reply-To: <20230308230931.27261-3-semen.protsenko@linaro.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On 09/03/2023 00:09, Sam Protsenko wrote: > Introduce a new "samsung,pd-index" property to choose a specific power > domain. This way it would be possible to avoid specifying any addresses > in power domain nodes, relying solely on syscon regmap from the parent > node (which should be a PMU system controller). Therefore the "reg" > property is deprecated now, as it's more logical to describe power > domains as children of PMU node, because PD registers reside in the PMU > area. > > Signed-off-by: Sam Protsenko > --- > .../devicetree/bindings/power/pd-samsung.yaml | 11 ++++++++++- > 1 file changed, 10 insertions(+), 1 deletion(-) > > diff --git a/Documentation/devicetree/bindings/power/pd-samsung.yaml b/Documentation/devicetree/bindings/power/pd-samsung.yaml > index a353a705292c..73178b1a56ea 100644 > --- a/Documentation/devicetree/bindings/power/pd-samsung.yaml > +++ b/Documentation/devicetree/bindings/power/pd-samsung.yaml > @@ -25,6 +25,10 @@ properties: > > reg: > maxItems: 1 > + deprecated: true > + description: > + Physical base address and length of Power Domains area (if not a child of > + PMU). > > clocks: > deprecated: true > @@ -45,10 +49,15 @@ properties: > power-domains: > maxItems: 1 > > + samsung,pd-index: > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: | > + Power domain index (if a child of PMU). Valid values are defined in:: > + "include/dt-bindings/power/samsung,exynos850-power.h" - for Exynos850 DT nodes should not have any IDs, except what is in 'reg'. Thus please go with Marek's proposal of merging power domains into PMU driver and using proper xlate. Best regards, Krzysztof