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Fri, 23 May 2025 11:43:57 -0700 (PDT) From: Florian Fainelli To: linux-kernel@vger.kernel.org Cc: justin.chen@broadcom.com, Florian Fainelli , Krzysztof Kozlowski , Rob Herring , Conor Dooley , Broadcom internal kernel review list , devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS), linux-arm-kernel@lists.infradead.org (moderated list:BROADCOM BCM7XXX ARM ARCHITECTURE) Subject: [PATCH 1/2] dt-bindings: memory-controller: Define fallback compatible Date: Fri, 23 May 2025 11:43:53 -0700 Message-ID: <20250523184354.1249577-2-florian.fainelli@broadcom.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250523184354.1249577-1-florian.fainelli@broadcom.com> References: <20250523184354.1249577-1-florian.fainelli@broadcom.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250523_194401_890850_8AD76DD7 X-CRM114-Status: GOOD ( 11.29 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org All of the DDR controllers beyond revision b.2.1 have had a consistent layout, therefore define a "brcm,brcmstb-memc-ddr-rev-b.2.x" fallback compatible string to match them all rather than having to continuously add to the list. Link: https://lore.kernel.org/all/20241217194439.929040-2-florian.fainelli@broadcom.com/ Signed-off-by: Florian Fainelli --- .../brcm,brcmstb-memc-ddr.yaml | 51 +++++++++++-------- 1 file changed, 31 insertions(+), 20 deletions(-) diff --git a/Documentation/devicetree/bindings/memory-controllers/brcm,brcmstb-memc-ddr.yaml b/Documentation/devicetree/bindings/memory-controllers/brcm,brcmstb-memc-ddr.yaml index 4b072c879b02..f08eb69fde47 100644 --- a/Documentation/devicetree/bindings/memory-controllers/brcm,brcmstb-memc-ddr.yaml +++ b/Documentation/devicetree/bindings/memory-controllers/brcm,brcmstb-memc-ddr.yaml @@ -11,25 +11,34 @@ maintainers: properties: compatible: - items: - - enum: - - brcm,brcmstb-memc-ddr-rev-b.1.x - - brcm,brcmstb-memc-ddr-rev-b.2.0 - - brcm,brcmstb-memc-ddr-rev-b.2.1 - - brcm,brcmstb-memc-ddr-rev-b.2.2 - - brcm,brcmstb-memc-ddr-rev-b.2.3 - - brcm,brcmstb-memc-ddr-rev-b.2.5 - - brcm,brcmstb-memc-ddr-rev-b.2.6 - - brcm,brcmstb-memc-ddr-rev-b.2.7 - - brcm,brcmstb-memc-ddr-rev-b.2.8 - - brcm,brcmstb-memc-ddr-rev-b.3.0 - - brcm,brcmstb-memc-ddr-rev-b.3.1 - - brcm,brcmstb-memc-ddr-rev-c.1.0 - - brcm,brcmstb-memc-ddr-rev-c.1.1 - - brcm,brcmstb-memc-ddr-rev-c.1.2 - - brcm,brcmstb-memc-ddr-rev-c.1.3 - - brcm,brcmstb-memc-ddr-rev-c.1.4 - - const: brcm,brcmstb-memc-ddr + oneOf: + - description: Revision 2.x controllers + items: + - enum: + - brcm,brcmstb-memc-ddr-rev-b.2.1 + - brcm,brcmstb-memc-ddr-rev-b.2.2 + - brcm,brcmstb-memc-ddr-rev-b.2.3 + - brcm,brcmstb-memc-ddr-rev-b.2.5 + - brcm,brcmstb-memc-ddr-rev-b.2.6 + - brcm,brcmstb-memc-ddr-rev-b.2.7 + - brcm,brcmstb-memc-ddr-rev-b.2.8 + - brcm,brcmstb-memc-ddr-rev-b.3.0 + - brcm,brcmstb-memc-ddr-rev-b.3.1 + - brcm,brcmstb-memc-ddr-rev-c.1.0 + - brcm,brcmstb-memc-ddr-rev-c.1.1 + - brcm,brcmstb-memc-ddr-rev-c.1.2 + - brcm,brcmstb-memc-ddr-rev-c.1.3 + - brcm,brcmstb-memc-ddr-rev-c.1.4 + - const: brcm,brcmstb-memc-ddr-rev-b.2.x + - const: brcm,brcmstb-memc-ddr + - description: Revision 2.0 controllers + items: + - const: brcm,brcmstb-memc-ddr-rev-b.2.0 + - const: brcm,brcmstb-memc-ddr + - description: Revision 1.x controllers + items: + - const: brcm,brcmstb-memc-ddr-rev-b.1.x + - const: brcm,brcmstb-memc-ddr reg: maxItems: 1 @@ -46,7 +55,9 @@ additionalProperties: false examples: - | memory-controller@9902000 { - compatible = "brcm,brcmstb-memc-ddr-rev-c.1.1", "brcm,brcmstb-memc-ddr"; + compatible = "brcm,brcmstb-memc-ddr-rev-c.1.1", + "brcm,brcmstb-memc-ddr-rev-b.2.x", + "brcm,brcmstb-memc-ddr"; reg = <0x9902000 0x600>; clock-frequency = <2133000000>; }; -- 2.43.0