netdev - [PATCH net-next 1/4] net: dsa: Move KS8995 to the DSA subsystem

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Message-Id: <20250813-ks8995-to-dsa-v1-1-75c359ede3a5@linaro.org>
Date: Wed, 13 Aug 2025 23:43:03 +0200
From: Linus Walleij <linus.walleij@...aro.org>
To: Andrew Lunn <andrew@...n.ch>, Vladimir Oltean <olteanv@...il.com>, 
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, 
 Heiner Kallweit <hkallweit1@...il.com>, 
 Russell King <linux@...linux.org.uk>
Cc: netdev@...r.kernel.org, Linus Walleij <linus.walleij@...aro.org>
Subject: [PATCH net-next 1/4] net: dsa: Move KS8995 to the DSA subsystem

By reading the datasheets for the KS8995 it is obvious that this
is a 100 Mbit DSA switch.

Let us start the refactoring by moving it to the DSA subsystem to
preserve development history.

Verified that the chip still probes the same after this patch
provided CONFIG_HAVE_NET_DSA, CONFIG_NET_DSA and CONFIG_DSA_KS8995
are selected.

Signed-off-by: Linus Walleij <linus.walleij@...aro.org>
---
 drivers/net/dsa/Kconfig                        | 7 +++++++
 drivers/net/dsa/Makefile                       | 1 +
 drivers/net/{phy/spi_ks8995.c => dsa/ks8995.c} | 0
 drivers/net/phy/Kconfig                        | 4 ----
 drivers/net/phy/Makefile                       | 1 -
 5 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/net/dsa/Kconfig b/drivers/net/dsa/Kconfig
index ec759f8cb0e2e042ec011204e9b8a22aeb5aae14..49326a9a0cffcb55da2068d8463c614cf6465243 100644
--- a/drivers/net/dsa/Kconfig
+++ b/drivers/net/dsa/Kconfig
@@ -99,6 +99,13 @@ config NET_DSA_RZN1_A5PSW
 	  This driver supports the A5PSW switch, which is embedded in Renesas
 	  RZ/N1 SoC.
 
+config NET_DSA_KS8995
+	tristate "Micrel KS8995 family 5-ports 10/100 Ethernet switches"
+	depends on SPI
+	help
+	  This driver supports the Micrel KS8995 family of 10/100 Mbit ethernet
+	  switches, managed over SPI.
+
 config NET_DSA_SMSC_LAN9303
 	tristate
 	select NET_DSA_TAG_LAN9303
diff --git a/drivers/net/dsa/Makefile b/drivers/net/dsa/Makefile
index cb9a97340e5803c3e1899606a814a99ebb77e7fa..23dbdf1a36a8af6842e8c0e7fb12ee24a0dd36d8 100644
--- a/drivers/net/dsa/Makefile
+++ b/drivers/net/dsa/Makefile
@@ -5,6 +5,7 @@ obj-$(CONFIG_NET_DSA_LOOP)	+= dsa_loop.o
 ifdef CONFIG_NET_DSA_LOOP
 obj-$(CONFIG_FIXED_PHY)		+= dsa_loop_bdinfo.o
 endif
+obj-$(CONFIG_NET_DSA_KS8995) 	+= ks8995.o
 obj-$(CONFIG_NET_DSA_LANTIQ_GSWIP) += lantiq_gswip.o
 obj-$(CONFIG_NET_DSA_MT7530)	+= mt7530.o
 obj-$(CONFIG_NET_DSA_MT7530_MDIO) += mt7530-mdio.o
diff --git a/drivers/net/phy/spi_ks8995.c b/drivers/net/dsa/ks8995.c
similarity index 100%
rename from drivers/net/phy/spi_ks8995.c
rename to drivers/net/dsa/ks8995.c
diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
index 28acc6392cfc897bfbdbd0d3434963a1ac1ff5b7..a7fb1d7cae94b242cde2af4f0e883d550b5eabde 100644
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -465,7 +465,3 @@ config XILINX_GMII2RGMII
 	  Ethernet physical media devices and the Gigabit Ethernet controller.
 
 endif # PHYLIB
-
-config MICREL_KS8995MA
-	tristate "Micrel KS8995MA 5-ports 10/100 managed Ethernet switch"
-	depends on SPI
diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile
index b4795aaf9c1ce2e1947b07752574533cd2be69b6..402a33d559de6a1b1332e20b4afaaf34c2b61cfb 100644
--- a/drivers/net/phy/Makefile
+++ b/drivers/net/phy/Makefile
@@ -72,7 +72,6 @@ obj-$(CONFIG_MAXLINEAR_GPHY)	+= mxl-gpy.o
 obj-$(CONFIG_MAXLINEAR_86110_PHY)	+= mxl-86110.o
 obj-y				+= mediatek/
 obj-$(CONFIG_MESON_GXL_PHY)	+= meson-gxl.o
-obj-$(CONFIG_MICREL_KS8995MA)	+= spi_ks8995.o
 obj-$(CONFIG_MICREL_PHY)	+= micrel.o
 obj-$(CONFIG_MICROCHIP_PHY)	+= microchip.o
 obj-$(CONFIG_MICROCHIP_PHY_RDS_PTP)	+= microchip_rds_ptp.o

-- 
2.50.1