A directory to store and build addon_board overlays like mikroBUS,
Groove, etc. The overlays present here should be completely independent
of the underlying connector.
Signed-off-by: Ayush Singh <ayush@beagleboard.org>
---
Kbuild | 1 +
Kconfig | 2 ++
MAINTAINERS | 1 +
addon_boards/Kconfig | 16 ++++++++++++++++
addon_boards/Makefile | 3 +++
addon_boards/mikrobus/Makefile | 1 +
6 files changed, 24 insertions(+)
diff --git a/Kbuild b/Kbuild
index 464b34a08f51..9c897397f55f 100644
--- a/Kbuild
+++ b/Kbuild
@@ -97,3 +97,4 @@ obj-$(CONFIG_SAMPLES) += samples/
obj-$(CONFIG_NET) += net/
obj-y += virt/
obj-y += $(ARCH_DRIVERS)
+obj-y += addon_boards/
diff --git a/Kconfig b/Kconfig
index 745bc773f567..49880d4e91e9 100644
--- a/Kconfig
+++ b/Kconfig
@@ -30,3 +30,5 @@ source "lib/Kconfig"
source "lib/Kconfig.debug"
source "Documentation/Kconfig"
+
+source "addon_boards/Kconfig"
diff --git a/MAINTAINERS b/MAINTAINERS
index 95f228c85a40..8e2e0f8d16be 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -15432,6 +15432,7 @@ F: drivers/usb/image/microtek.*
MIKROBUS CONNECTOR
M: Ayush Singh <ayush@beagleboard.org>
S: Maintained
+F: addon_boards/mikrobus/*.dtso
F: arch/arm64/boot/dts/ti/k3-am625-beagleplay-mikrobus-connector0.dtso
F: Documentation/devicetree/bindings/connector/mikrobus-connector.yaml
F: drivers/misc/mikrobus.rs
diff --git a/addon_boards/Kconfig b/addon_boards/Kconfig
new file mode 100644
index 000000000000..01766ab28848
--- /dev/null
+++ b/addon_boards/Kconfig
@@ -0,0 +1,16 @@
+# SPDX-License-Identifier: GPL-2.0
+
+menu "Addon Board Overlays"
+
+config MIKROBUS_BOARD_OVERLAYS
+ bool "mikroBUS board overlays"
+ depends on OF_OVERLAY
+ depends on MIKROBUS
+ help
+ This option enables the mikroBUS addon board overlays. mikroBUS is an
+ add-on board socket standard that offers maximum expandability with
+ the smallest number of pins.
+
+ Say Y here to enable overlays for MikroBUS addon boards.
+
+endmenu
diff --git a/addon_boards/Makefile b/addon_boards/Makefile
new file mode 100644
index 000000000000..38275c3ff4c1
--- /dev/null
+++ b/addon_boards/Makefile
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0
+
+subdir-$(CONFIG_MIKROBUS_BOARD_OVERLAYS) += mikrobus
diff --git a/addon_boards/mikrobus/Makefile b/addon_boards/mikrobus/Makefile
new file mode 100644
index 000000000000..f66554cd5c45
--- /dev/null
+++ b/addon_boards/mikrobus/Makefile
@@ -0,0 +1 @@
+# SPDX-License-Identifier: GPL-2.0
--
2.46.0On Wed, Sep 11, 2024 at 07:57:23PM +0530, Ayush Singh wrote: > A directory to store and build addon_board overlays like mikroBUS, > Groove, etc. The overlays present here should be completely independent > of the underlying connector. > > Signed-off-by: Ayush Singh <ayush@beagleboard.org> > --- > Kbuild | 1 + > Kconfig | 2 ++ > MAINTAINERS | 1 + > addon_boards/Kconfig | 16 ++++++++++++++++ > addon_boards/Makefile | 3 +++ > addon_boards/mikrobus/Makefile | 1 + > 6 files changed, 24 insertions(+) Ah, here's where you add this. It should be below drivers/ right? But what's wrong with drivers/soc/? Why is this so special? Why not just under drivers/microbus/addon_boards/ ? Why is this tiny bus/device so different from everything else out there? thanks, greg k-h
On 9/11/24 20:30, Greg Kroah-Hartman wrote: > On Wed, Sep 11, 2024 at 07:57:23PM +0530, Ayush Singh wrote: >> A directory to store and build addon_board overlays like mikroBUS, >> Groove, etc. The overlays present here should be completely independent >> of the underlying connector. >> >> Signed-off-by: Ayush Singh <ayush@beagleboard.org> >> --- >> Kbuild | 1 + >> Kconfig | 2 ++ >> MAINTAINERS | 1 + >> addon_boards/Kconfig | 16 ++++++++++++++++ >> addon_boards/Makefile | 3 +++ >> addon_boards/mikrobus/Makefile | 1 + >> 6 files changed, 24 insertions(+) > Ah, here's where you add this. > > It should be below drivers/ right? But what's wrong with drivers/soc/? > Why is this so special? Why not just under > drivers/microbus/addon_boards/ ? Why is this tiny bus/device so > different from everything else out there? > > thanks, > > greg k-h Well, it can go under drivers for mikrobus, but there will be other addon board connectors which will not need any kind of driver. In fact, the original patch series this is based on [0] did not have any driver for the connector. As for bus, see my reply to the other patch in the series [1]. Basically, while the name of the standard itself is "mikroBUS", it is not really a "bus" in Linux sense. [0]: https://lore.kernel.org/linux-arm-kernel/20240702164403.29067-1-afd@ti.com/ [1]: https://lore.kernel.org/all/ecd1fff8-9c15-496a-982f-36e6c58e906a@gmail.com/
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