[PATCH v8 0/5] staging: vc04_services: vchiq: Register devices with a custom bus_type

Umang Jain
2023-06-27T20:16:41Z

The patch series added a new bus type vchiq_bus_type and registers
child devices in order to move them away from using platform
device/driver.

Patch 1/5 and 2/5 adds a new bus_type and registers them to vchiq
interface

Patch 3/5 and 4/5 moves the bcm2835-camera and bcm2835-audio
to the new bus respectively

Patch 5/5 removes a platform registeration helper which is no
longer required.

Changes in v8:
- Drop dual licensing. Instead use GPL-2.0 only for patch 1/5

Changes in v7:
(5 out of 6 patches from v6 merged)
- Split the main patch (6/6) as requested.
- Use struct vchiq_device * instead of struct device * in
all bus functions.
- Drop additional name attribute displayed in sysfs (redundant info)
- Document vchiq_interface doesn't enumerate device discovery
- remove EXPORT_SYMBOL_GPL(vchiq_bus_type)

Changes in v6:
- Split struct device and struct driver wrappers in vchiq_device.[ch]
- Move vchiq_bus_type definition to vchiq_device.[ch] as well
- return error on bus_register() failure
- drop dma_set_mask_and_coherent
- trivial variable name change

Changes in v5:
- Fixup missing "staging: " in commits' subject line
- No code changes from v4

Changes in v4:
- Introduce patches to drop include directives from Makefile

Changes in v3:
- Rework entirely to replace platform devices/driver model

-v2:
https://lore.kernel.org/all/20221222191500.515795-1-umang.jain@ideasonboard.com/

-v1:
https://lore.kernel.org/all/20221220084404.19280-1-umang.jain@ideasonboard.com/

Umang Jain (5):
staging: vc04_services: vchiq_arm: Add new bus type and device type
staging: vc04_services: vchiq_arm: Register vchiq_bus_type
staging: bcm2835-camera: Register bcm2835-camera with vchiq_bus_type
staging: bcm2835-audio: Register bcm2835-audio with vchiq_bus_type
staging: vc04_services: vchiq_arm: Remove vchiq_register_child()

drivers/staging/vc04_services/Makefile | 1 +
.../vc04_services/bcm2835-audio/bcm2835.c | 17 ++--
.../bcm2835-camera/bcm2835-camera.c | 16 ++--
.../interface/vchiq_arm/vchiq_arm.c | 56 +++++++------
.../interface/vchiq_arm/vchiq_device.c | 78 +++++++++++++++++++
.../interface/vchiq_arm/vchiq_device.h | 43 ++++++++++
6 files changed, 165 insertions(+), 46 deletions(-)
create mode 100644 drivers/staging/vc04_services/interface/vchiq_arm/vchiq_device.c
create mode 100644 drivers/staging/vc04_services/interface/vchiq_arm/vchiq_device.h

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2.39.1