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1a24c364e4
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Jani Nikula 1a24c364e4 drm/displayid: add new displayid section/block iterators 
Iterating DisplayID blocks across sections (in EDID extensions) is
unnecessarily complicated for the caller. Implement DisplayID iterators
to go through all blocks in all sections.

Usage example:

	const struct displayid_block *block;
	struct displayid_iter iter;

	displayid_iter_edid_begin(edid, &iter);
	displayid_iter_for_each(block, &iter) {
		/* operate on block */
	}
	displayid_iter_end(&iter);

When DisplayID is stored in EDID extensions, the DisplayID sections map
to extensions as described in VESA DisplayID v1.3 Appendix B: DisplayID
as an EDID Extension. This is implemented here.

When DisplayID is stored in its dedicated DDC device 0xA4, according to
VESA E-DDC v1.3, different rules apply for the structure. This is not
implemented here, as we don't currently use it, but the idea is you'd
have a different call for beginning the iteration, for example simply:

	displayid_iter_begin(displayid, &iter);

instead of displayid_iter_edid_begin(), and everything else would be
hidden away in the iterator functions.

v2:
- sizeof(struct displayid_block) -> sizeof(*block) (Ville)
- remove __ prefix from displayid_iter_block

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/da3dead1752ab16c061f7bd248ac1a4268f7fefb.1617024940.git.jani.nikula@intel.com
2021-03-31 15:41:43 +03:00
..
accessibility Char/Misc driver patches for 5.12-rc1 2021-02-24 10:25:37 -08:00
acpi Additional ACPI updates for v5.12-rc1 2021-02-25 12:03:13 -08:00
amba
android
ata
atm atm: idt77252: fix null-ptr-dereference 2021-03-08 15:16:30 -08:00
auxdisplay treewide: Miguel has moved 2021-02-26 09:41:03 -08:00
base software node: Fix device_add_software_node() 2021-03-10 15:25:02 +01:00
bcma
block Merge branch 'akpm' (patches from Andrew) 2021-03-14 12:23:34 -07:00
bluetooth TTY/Serial driver changes for 5.12-rc1 2021-02-20 21:28:04 -08:00
bus Char/Misc driver patches for 5.12-rc1 2021-02-24 10:25:37 -08:00
cdrom
char powerpc fixes for 5.12 #2 2021-03-07 13:24:44 -08:00
clk RISC-V Patches for the 5.12 Merge Window 2021-02-26 10:28:35 -08:00
clocksource A small set of clockevent fixes which fell through the cracks 2021-02-22 14:11:36 -08:00
connector
counter
cpufreq cpufreq: blacklist Arm Vexpress platforms in cpufreq-dt-platdev 2021-03-08 16:20:07 +05:30
cpuidle
crypto vio: make remove callback return void 2021-03-02 22:41:23 +11:00
cxl cxl/mem: Fix potential memory leak 2021-02-22 14:44:39 -08:00
dax Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2021-02-27 08:07:12 -08:00
dca
devfreq Merge branches 'pm-devfreq' and 'pm-tools' 2021-02-15 17:02:04 +01:00
dio
dma dmaengine updates for v5.12-rc1 2021-02-23 15:05:10 -08:00
dma-buf drm-misc-next for 5.13: 2021-03-16 17:08:46 +10:00
edac Merge branch 'edac-misc' into edac-updates-for-v5.12 2021-02-15 10:06:58 +01:00
eisa
extcon
firewire
firmware EFI fix for 5.12-rc2 2021-03-14 12:54:56 -07:00
fpga
fsi
gnss
gpio gpiolib: Read "gpio-line-names" from a firmware node 2021-03-08 11:59:17 +01:00
gpu drm/displayid: add new displayid section/block iterators 2021-03-31 15:41:43 +03:00
greybus
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid 2021-02-23 14:52:22 -08:00
hsi
hv mm/memory_hotplug: MEMHP_MERGE_RESOURCE -> MHP_MERGE_RESOURCE 2021-02-26 09:41:00 -08:00
hwmon Devicetree updates for v5.12: 2021-02-22 10:05:12 -08:00
hwspinlock
hwtracing ARM updates for 5.12-rc1: 2021-02-22 14:27:07 -08:00
i2c i2c: exynos5: Preserve high speed master code 2021-02-26 11:47:42 +01:00
i3c I3C for 5.12 2021-02-22 09:52:55 -08:00
ide ide-5.11-2021-02-28 2021-02-28 15:48:25 -08:00
idle
iio - Use the newly introduced 'hot' and 'critical' ops for the acpi 2021-02-22 09:39:11 -08:00
infiniband RDMA/rxe: Fix errant WARN_ONCE in rxe_completer() 2021-03-05 14:15:22 -04:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2021-02-23 14:56:23 -08:00
interconnect
iommu IOMMU Fixes for Linux v5.12-rc1 2021-03-05 12:26:24 -08:00
ipack
irqchip irqchip/ingenic: Add support for the JZ4760 2021-03-09 08:45:17 +00:00
isdn
leds leds: trigger/tty: Use led_set_brightness_sync() from workqueue 2021-03-10 09:27:56 +01:00
lightnvm lightnvm: pblk: Replace guid_copy() with export_guid()/import_guid() 2021-02-14 21:27:24 -07:00
macintosh
mailbox mailbox: arm_mhuv2: Skip calling kfree() with invalid pointer 2021-02-22 13:34:27 -06:00
mcb
md block-5.12-2021-03-12-v2 2021-03-12 13:25:49 -08:00
media drm-misc-next for 5.13: 2021-03-16 17:08:46 +10:00
memory Char/Misc driver patches for 5.12-rc1 2021-02-24 10:25:37 -08:00
memstick
message
mfd Simple Firmware Interface (SFI) support removal for v5.12-rc1 2021-02-24 10:35:29 -08:00
misc Char/misc driver fixes for 5.12-rc3 2021-03-13 12:38:44 -08:00
mmc mmc: cqhci: Fix random crash when remove mmc module/card 2021-03-09 10:00:52 +01:00
most
mtd This pull request contains changes (actually just fixes) for UBIFS 2021-02-21 13:57:08 -08:00
mux
net Merge git://git.kernel.org:/pub/scm/linux/kernel/git/netdev/net 2021-03-09 17:15:56 -08:00
nfc Char/Misc driver patches for 5.12-rc1 2021-02-24 10:25:37 -08:00
ntb NTB: Add support for EPF PCI Non-Transparent Bridge 2021-02-23 14:12:53 -06:00
nubus
nvdimm libnvdimm + device-dax for 5.12 2021-02-24 09:35:54 -08:00
nvme nvme: fix the nsid value to print in nvme_validate_or_alloc_ns 2021-03-12 13:17:45 -07:00
nvmem
of Char/Misc driver patches for 5.12-rc1 2021-02-24 10:25:37 -08:00
opp opp: Don't drop extra references to OPPs accidentally 2021-03-12 09:26:52 +05:30
parisc
parport
pci xen: branch for v5.12-rc3 2021-03-12 11:34:36 -08:00
pcmcia Merge branch 'pcmcia-next' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux 2021-02-26 13:54:43 -08:00
perf perf/arm_dmc620_pmu: Fix error return code in dmc620_pmu_device_probe() 2021-03-12 11:30:31 +00:00
phy
pinctrl RISC-V Patches for the 5.12 Merge Window 2021-02-26 10:28:35 -08:00
platform Additional ACPI updates for v5.12-rc1 2021-02-25 12:03:13 -08:00
pnp
power
powercap powercap/drivers/dtpm: Add the experimental label to the option description 2021-03-01 17:43:29 +01:00
pps
ps3
ptp ptp: ptp_clockmatrix: clean-up - parenthesis around a == b are unnecessary 2021-02-17 13:49:26 -08:00
pwm pwm: Changes for v5.12-rc1 2021-02-25 12:23:49 -08:00
rapidio
ras
regulator regulator: mt6315: Fix off-by-one for .n_voltages 2021-03-11 13:23:21 +00:00
remoteproc
reset RISC-V Patches for the 5.12 Merge Window 2021-02-26 10:28:35 -08:00
rpmsg
rtc Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2021-02-27 08:07:12 -08:00
s390 block-5.12-2021-03-12-v2 2021-03-12 13:25:49 -08:00
sbus
scsi SCSI fixes on 20210312 2021-03-12 13:37:18 -08:00
sh
siox
slimbus
soc OpenRISC updates for 5.12 2021-02-26 14:16:06 -08:00
soundwire ALSA: hda: move Intel SoundWire ACPI scan to dedicated module 2021-03-02 15:33:00 +01:00
spi powerpc updates for 5.12 2021-02-22 14:34:00 -08:00
spmi spmi: spmi-pmic-arb: Fix hw_irq overflow 2021-02-12 12:26:46 +01:00
ssb
staging Revert "staging: wfx: remove unused included header files" 2021-03-10 09:23:30 +01:00
target SCSI misc on 20210228 2021-02-28 11:51:20 -08:00
tc
tee
thermal - Use the newly introduced 'hot' and 'critical' ops for the acpi 2021-02-22 09:39:11 -08:00
thunderbolt
tty TTY/Serial fixes for 5.12-rc3 2021-03-13 12:34:29 -08:00
uio
usb USB fixes for 5.12-rc3 2021-03-13 12:32:57 -08:00
vdpa vdpa/mlx5: fix param validation in mlx5_vdpa_get_config() 2021-02-23 07:52:59 -05:00
vfio VFIO updates for v5.12-rc1 2021-02-24 10:43:40 -08:00
vhost virtio: features, fixes 2021-02-25 12:21:08 -08:00
video fbdev: omapfb: avoid -Wempty-body warning 2021-03-22 15:02:14 +01:00
virt virt: acrn: Correct type casting of argument of copy_from_user() 2021-03-10 16:59:50 +01:00
virtio Merge branch 'akpm' (patches from Andrew) 2021-02-26 09:50:09 -08:00
visorbus
vlynq
vme
w1
watchdog Char/Misc driver patches for 5.12-rc1 2021-02-24 10:25:37 -08:00
xen xen: branch for v5.12-rc3 2021-03-12 11:34:36 -08:00
zorro
Kconfig cxl/mem: Introduce a driver for CXL-2.0-Type-3 endpoints 2021-02-16 20:36:38 -08:00
Makefile Simple Firmware Interface (SFI) support removal for v5.12-rc1 2021-02-24 10:35:29 -08:00