WSL2-Linux-Kernel/arch
Laurent Pinchart e0c827aca0 drm/omap: Populate DSS children in omapdss driver
The DSS DT node contains children that describe the DSS components
(DISPC and internal encoders). Each of those components is handled by a
platform driver, and thus needs to be backed by a platform device.

The corresponding platform devices are created in mach-omap2 code by a
call to of_platform_populate(). While this approach has worked so far,
it doesn't model the hardware architecture very well, as it creates
child devices before the parent is ready to handle them. This would be
akin to creating I2C slaves before the I2C master is available.

The task can be easily performed in the omapdss driver code instead,
simplifying mach-omap2 code. We however can't remove the mach-omap2 code
completely as the omap2fb driver still depends on it, but we can move it
to the omap2fb-specific section, where it can stay until the omap2fb
driver gets removed.

This has the added benefit of not allowing DSS components to probe
before the DSS itself, which led to runtime PM issues when the DSS probe
is deferred.

Fixes: 27d624527d ("drm/omap: dss: Acquire next dssdev at probe time")
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181110111654.4387-2-laurent.pinchart@ideasonboard.com
2018-11-12 11:50:13 +02:00
..
alpha memblock: stop using implicit alignment to SMP_CACHE_BYTES 2018-10-31 08:54:16 -07:00
arc mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
arm drm/omap: Populate DSS children in omapdss driver 2018-11-12 11:50:13 +02:00
arm64 ARM: SoC fixes 2018-11-03 12:13:57 -07:00
c6x c6x changes for 4.20 2018-10-31 15:39:25 -07:00
csky csky: dtb Kbuild fixup patches for linux-4.20-rc1 2018-11-01 09:04:30 -07:00
h8300 mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
hexagon mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
ia64 memblock: stop using implicit alignment to SMP_CACHE_BYTES 2018-10-31 08:54:16 -07:00
m68k memblock: stop using implicit alignment to SMP_CACHE_BYTES 2018-10-31 08:54:16 -07:00
microblaze memblock: stop using implicit alignment to SMP_CACHE_BYTES 2018-10-31 08:54:16 -07:00
mips Kbuild updates for v4.20 (2nd) 2018-11-03 10:47:33 -07:00
nds32 mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
nios2 mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
openrisc mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
parisc mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
powerpc Kbuild updates for v4.20 (2nd) 2018-11-03 10:47:33 -07:00
riscv RISC-V: refresh defconfig 2018-11-01 17:04:07 -07:00
s390 mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
sh mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
sparc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc 2018-11-01 09:07:04 -07:00
um Merge branch 'for-linus-4.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml 2018-10-31 15:46:16 -07:00
unicore32 memblock: stop using implicit alignment to SMP_CACHE_BYTES 2018-10-31 08:54:16 -07:00
x86 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-11-03 18:25:17 -07:00
xtensa Xtensa fixes and cleanups for v4.20: 2018-11-01 14:32:43 -07:00
.gitignore
Kconfig New gcc plugin: stackleak 2018-11-01 11:46:27 -07:00