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Message-Id: <20230914075107.2239886-2-o.rempel@pengutronix.de> Date: Thu, 14 Sep 2023 09:51:06 +0200 From: Oleksij Rempel <o.rempel@...gutronix.de> To: "David S. Miller" <davem@...emloft.net>, Andrew Lunn <andrew@...n.ch>, Eric Dumazet <edumazet@...gle.com>, Florian Fainelli <f.fainelli@...il.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, Vladimir Oltean <olteanv@...il.com>, Woojung Huh <woojung.huh@...rochip.com>, Arun Ramadoss <arun.ramadoss@...rochip.com>, Conor Dooley <conor+dt@...nel.org>, Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, Rob Herring <robh+dt@...nel.org> Cc: Oleksij Rempel <o.rempel@...gutronix.de>, Rob Herring <robh@...nel.org>, kernel@...gutronix.de, linux-kernel@...r.kernel.org, netdev@...r.kernel.org, UNGLinuxDriver@...rochip.com, "Russell King (Oracle)" <linux@...linux.org.uk>, devicetree@...r.kernel.org Subject: [PATCH net-next v5 1/2] dt-bindings: net: dsa: microchip: Update ksz device tree bindings for drive strength Extend device tree bindings to support drive strength configuration for the ksz* switches. Introduced properties: - microchip,hi-drive-strength-microamp: Controls the drive strength for high-speed interfaces like GMII/RGMII and more. - microchip,lo-drive-strength-microamp: Governs the drive strength for low-speed interfaces such as LEDs, PME_N, and others. - microchip,io-drive-strength-microamp: Controls the drive strength for for undocumented Pads on KSZ88xx variants. Signed-off-by: Oleksij Rempel <o.rempel@...gutronix.de> Reviewed-by: Rob Herring <robh@...nel.org> Reviewed-by: Andrew Lunn <andrew@...n.ch> --- .../bindings/net/dsa/microchip,ksz.yaml | 20 +++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/Documentation/devicetree/bindings/net/dsa/microchip,ksz.yaml b/Documentation/devicetree/bindings/net/dsa/microchip,ksz.yaml index 03b5567be389..41014f5c01c4 100644 --- a/Documentation/devicetree/bindings/net/dsa/microchip,ksz.yaml +++ b/Documentation/devicetree/bindings/net/dsa/microchip,ksz.yaml @@ -49,6 +49,26 @@ properties: Set if the output SYNCLKO clock should be disabled. Do not mix with microchip,synclko-125. + microchip,io-drive-strength-microamp: + description: + IO Pad Drive Strength + enum: [8000, 16000] + default: 16000 + + microchip,hi-drive-strength-microamp: + description: + High Speed Drive Strength. Controls drive strength of GMII / RGMII / + MII / RMII (except TX_CLK/REFCLKI, COL and CRS) and CLKO_25_125 lines. + enum: [2000, 4000, 8000, 12000, 16000, 20000, 24000, 28000] + default: 24000 + + microchip,lo-drive-strength-microamp: + description: + Low Speed Drive Strength. Controls drive strength of TX_CLK / REFCLKI, + COL, CRS, LEDs, PME_N, NTRP_N, SDO and SDI/SDA/MDIO lines. + enum: [2000, 4000, 8000, 12000, 16000, 20000, 24000, 28000] + default: 8000 + interrupts: maxItems: 1 -- 2.39.2
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