drm/tilcdc: Convert to Linux IRQ interfaces

Browse source

Drop the DRM IRQ midlayer in favor of Linux IRQ interfaces. DRM's
IRQ helpers are mostly useful for UMS drivers. Modern KMS drivers
don't benefit from using it.

DRM IRQ callbacks are now being called directly or inlined.

Calls to platform_get_irq() can fail with a negative errno code.
Abort initialization in this case. The DRM IRQ midlayer does not
handle this case correctly.

For most drivers, only the DRM IRQ helpers use irq_enabled from
struct drm_device. Tilcdc also uses irq_enabled to make its error
rollback work correctly. As the field will become legacy, duplicated
the state in the driver's local private structure.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210803090704.32152-12-tzimmermann@suse.de

...

This commit is contained in:

Thomas Zimmermann 2021-08-03 11:07:01 +02:00

parent 5518572dce

commit b6366814fa

2 changed files with 43 additions and 11 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

51

drivers/gpu/drm/tilcdc/tilcdc_drv.c

View file

3

drivers/gpu/drm/tilcdc/tilcdc_drv.h

View file