From: Heinrich Toews <ht@twx-software.de>
To: netdev@vger.kernel.org
Cc: andrew@lunn.ch, f.fainelli@gmail.com, olteanv@gmail.com,
robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org
Subject: [PATCH v1 2/3] net: phy: micrel: add flag for KSZ9477 LED erratum
Date: Wed, 28 Jan 2026 14:38:32 +0100 [thread overview]
Message-ID: <20260128133842.1173406-3-ht@twx-software.de> (raw)
In-Reply-To: <20260128133842.1173406-1-ht@twx-software.de>
Add a new flag MICREL_KSZ9_LED_ERRATA to indicate support for a specific
LED erratum workaround on Microchip KSZ9477 switches. This flag
will be used by the DSA driver to trigger a hardware-specific register
write required for correct LED activity in single-LED mode.
Signed-off-by: Heinrich Toews <ht@twx-software.de>
---
include/linux/micrel_phy.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/include/linux/micrel_phy.h b/include/linux/micrel_phy.h
index ca691641788b8..1dcbb0c93d9e1 100644
--- a/include/linux/micrel_phy.h
+++ b/include/linux/micrel_phy.h
@@ -45,6 +45,7 @@
#define MICREL_PHY_50MHZ_CLK BIT(0)
#define MICREL_PHY_FXEN BIT(1)
#define MICREL_KSZ8_P1_ERRATA BIT(2)
+#define MICREL_KSZ9_LED_ERRATA BIT(3)
#define MICREL_KSZ9021_EXTREG_CTRL 0xB
#define MICREL_KSZ9021_EXTREG_DATA_WRITE 0xC
--
2.52.0
next prev parent reply other threads:[~2026-01-28 13:48 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-28 13:38 [PATCH net-next v1 0/3] net: dsa: microchip: add single-led-mode support Heinrich Toews
2026-01-28 13:38 ` [PATCH v1 1/3] dt-bindings: net: dsa: microchip: add microchip,single-led-mode flag Heinrich Toews
2026-01-28 13:59 ` Andrew Lunn
2026-01-28 15:10 ` Heinrich Töws (TWx)
2026-01-28 15:22 ` Andrew Lunn
2026-01-28 15:53 ` Heinrich Töws (TWx)
2026-01-28 18:06 ` Rob Herring
2026-02-03 10:22 ` Heinrich Toews
2026-01-28 13:38 ` Heinrich Toews [this message]
2026-01-28 13:38 ` [PATCH v1 3/3] net: dsa: microchip: add single-led-mode support for KSZ9477 Heinrich Toews
2026-01-29 2:25 ` [v1,3/3] " Jakub Kicinski
2026-02-03 11:13 ` Heinrich Toews
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