yt921x is already the longest single-file DSA driver, so it's time to
split it into parts.

Signed-off-by: David Yang <mmyangfl@gmail.com>
---
 MAINTAINERS                                    |  2 +-
 drivers/net/dsa/Kconfig                        | 10 ++--------
 drivers/net/dsa/Makefile                       |  2 +-
 drivers/net/dsa/motorcomm/Kconfig              |  8 ++++++++
 drivers/net/dsa/motorcomm/Makefile             |  3 +++
 drivers/net/dsa/{yt921x.c => motorcomm/chip.c} |  2 +-
 drivers/net/dsa/{yt921x.h => motorcomm/chip.h} |  0
 7 files changed, 16 insertions(+), 11 deletions(-)
 create mode 100644 drivers/net/dsa/motorcomm/Kconfig
 create mode 100644 drivers/net/dsa/motorcomm/Makefile
 rename drivers/net/dsa/{yt921x.c => motorcomm/chip.c} (99%)
 rename drivers/net/dsa/{yt921x.h => motorcomm/chip.h} (100%)

diff --git a/MAINTAINERS b/MAINTAINERS
index 06df1171f4cf..b007f20b2763 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -18039,7 +18039,7 @@ M:	David Yang <mmyangfl@gmail.com>
 L:	netdev@vger.kernel.org
 S:	Maintained
 F:	Documentation/devicetree/bindings/net/dsa/motorcomm,yt921x.yaml
-F:	drivers/net/dsa/yt921x.*
+F:	drivers/net/dsa/motorcomm/
 F:	net/dsa/tag_yt921x.c
 
 MOXA SMARTIO/INDUSTIO/INTELLIO SERIAL CARD
diff --git a/drivers/net/dsa/Kconfig b/drivers/net/dsa/Kconfig
index 4ab567c5bbaf..98e9bbe47de7 100644
--- a/drivers/net/dsa/Kconfig
+++ b/drivers/net/dsa/Kconfig
@@ -72,6 +72,8 @@ config NET_DSA_MV88E6060
 
 source "drivers/net/dsa/microchip/Kconfig"
 
+source "drivers/net/dsa/motorcomm/Kconfig"
+
 source "drivers/net/dsa/mv88e6xxx/Kconfig"
 
 source "drivers/net/dsa/mxl862xx/Kconfig"
@@ -158,12 +160,4 @@ config NET_DSA_VITESSE_VSC73XX_PLATFORM
 	  This enables support for the Vitesse VSC7385, VSC7388, VSC7395
 	  and VSC7398 SparX integrated ethernet switches, connected over
 	  a CPU-attached address bus and work in memory-mapped I/O mode.
-
-config NET_DSA_YT921X
-	tristate "Motorcomm YT9215 ethernet switch chip support"
-	select NET_DSA_TAG_YT921X
-	select NET_IEEE8021Q_HELPERS if DCB
-	help
-	  This enables support for the Motorcomm YT9215 ethernet switch
-	  chip.
 endmenu
diff --git a/drivers/net/dsa/Makefile b/drivers/net/dsa/Makefile
index d2975badffc0..138225baa4d5 100644
--- a/drivers/net/dsa/Makefile
+++ b/drivers/net/dsa/Makefile
@@ -14,11 +14,11 @@ obj-$(CONFIG_NET_DSA_SMSC_LAN9303_MDIO) += lan9303_mdio.o
 obj-$(CONFIG_NET_DSA_VITESSE_VSC73XX) += vitesse-vsc73xx-core.o
 obj-$(CONFIG_NET_DSA_VITESSE_VSC73XX_PLATFORM) += vitesse-vsc73xx-platform.o
 obj-$(CONFIG_NET_DSA_VITESSE_VSC73XX_SPI) += vitesse-vsc73xx-spi.o
-obj-$(CONFIG_NET_DSA_YT921X) += yt921x.o
 obj-y				+= b53/
 obj-y				+= hirschmann/
 obj-y				+= lantiq/
 obj-y				+= microchip/
+obj-y				+= motorcomm/
 obj-y				+= mv88e6xxx/
 obj-y				+= mxl862xx/
 obj-y				+= netc/
diff --git a/drivers/net/dsa/motorcomm/Kconfig b/drivers/net/dsa/motorcomm/Kconfig
new file mode 100644
index 000000000000..1fddd386f866
--- /dev/null
+++ b/drivers/net/dsa/motorcomm/Kconfig
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: ISC
+config NET_DSA_YT921X
+	tristate "Motorcomm YT9215 ethernet switch chip support"
+	select NET_DSA_TAG_YT921X
+	select NET_IEEE8021Q_HELPERS if DCB
+	help
+	  This enables support for the Motorcomm YT9215 ethernet switch
+	  chip.
diff --git a/drivers/net/dsa/motorcomm/Makefile b/drivers/net/dsa/motorcomm/Makefile
new file mode 100644
index 000000000000..afd03be9fa35
--- /dev/null
+++ b/drivers/net/dsa/motorcomm/Makefile
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: ISC
+obj-$(CONFIG_NET_DSA_YT921X) += yt921x.o
+yt921x-objs := chip.o
diff --git a/drivers/net/dsa/yt921x.c b/drivers/net/dsa/motorcomm/chip.c
similarity index 99%
rename from drivers/net/dsa/yt921x.c
rename to drivers/net/dsa/motorcomm/chip.c
index 159b16606f6c..f070732845eb 100644
--- a/drivers/net/dsa/yt921x.c
+++ b/drivers/net/dsa/motorcomm/chip.c
@@ -26,7 +26,7 @@
 #include <net/ieee8021q.h>
 #include <net/pkt_cls.h>
 
-#include "yt921x.h"
+#include "chip.h"
 
 struct yt921x_mib_desc {
 	unsigned int size;
diff --git a/drivers/net/dsa/yt921x.h b/drivers/net/dsa/motorcomm/chip.h
similarity index 100%
rename from drivers/net/dsa/yt921x.h
rename to drivers/net/dsa/motorcomm/chip.h
-- 
2.53.0