linux-kernel - [PATCH] net: phy: adin: add missing clock option

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Date: Mon, 22 Jan 2024 12:03:12 +0100
From: Fabian Pfitzner <f.pfitzner@...gutronix.de>
To: Michael Hennerich <michael.hennerich@...log.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Rob Herring <robh+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Andrew Lunn <andrew@...n.ch>,
	Heiner Kallweit <hkallweit1@...il.com>,
	Russell King <linux@...linux.org.uk>,
	Alexandru Tachici <alexandru.tachici@...log.com>
Cc: kernel@...gutronix.de,
	Fabian Pfitzner <f.pfitzner@...gutronix.de>,
	netdev@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] net: phy: adin: add missing clock option

The GP_CLK pin on Adin1300 PHY's offers three different output clocks.
This patch adds the missing 125MHz recovered clock option which is not
yet availible in the driver.

Signed-off-by: Fabian Pfitzner <f.pfitzner@...gutronix.de>
---
 Documentation/devicetree/bindings/net/adi,adin.yaml | 7 +++++--
 drivers/net/phy/adin.c                              | 2 ++
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/net/adi,adin.yaml b/Documentation/devicetree/bindings/net/adi,adin.yaml
index 929cf8c0b0fd..cd1b4efa692b 100644
--- a/Documentation/devicetree/bindings/net/adi,adin.yaml
+++ b/Documentation/devicetree/bindings/net/adi,adin.yaml
@@ -38,14 +38,17 @@ properties:
 
   adi,phy-output-clock:
     description: |
-      Select clock output on GP_CLK pin. Two clocks are available:
-      A 25MHz reference and a free-running 125MHz.
+      Select clock output on GP_CLK pin. Three clocks are available:
+        - 25MHz reference
+        - free-running 125MHz 
+        - recovered 125MHz
       The phy can alternatively automatically switch between the reference and
       the 125MHz clocks based on its internal state.
     $ref: /schemas/types.yaml#/definitions/string
     enum:
       - 25mhz-reference
       - 125mhz-free-running
+      - 125mhz-recovered
       - adaptive-free-running
 
   adi,phy-output-reference-clock:
diff --git a/drivers/net/phy/adin.c b/drivers/net/phy/adin.c
index 2e1a46e121d9..b1ed6fd24763 100644
--- a/drivers/net/phy/adin.c
+++ b/drivers/net/phy/adin.c
@@ -508,6 +508,8 @@ static int adin_config_clk_out(struct phy_device *phydev)
 		sel |= ADIN1300_GE_CLK_CFG_25;
 	} else if (strcmp(val, "125mhz-free-running") == 0) {
 		sel |= ADIN1300_GE_CLK_CFG_FREE_125;
+	} else if (strcmp(val, "125mhz-recovered") == 0) {
+		sel |= ADIN1300_GE_CLK_CFG_RCVR_125;
 	} else if (strcmp(val, "adaptive-free-running") == 0) {
 		sel |= ADIN1300_GE_CLK_CFG_HRT_FREE;
 	} else {

base-commit: 6613476e225e090cc9aad49be7fa504e290dd33d
-- 
2.39.2