Hans de Goede 613cbb91e9 media: Add MIPI CCI register access helper functions ... The CSI2 specification specifies a standard method to access camera sensor registers called "Camera Control Interface (CCI)". This uses either 8 or 16 bit (big-endian wire order) register addresses and supports 8, 16, 24 or 32 bit (big-endian wire order) register widths. Currently a lot of Linux camera sensor drivers all have their own custom helpers for this, often copy and pasted from other drivers. Add a set of generic helpers for this so that all sensor drivers can switch to a single common implementation. These helpers take an extra optional "int *err" function parameter, this can be used to chain a bunch of register accesses together with only a single error check at the end, rather than needing to error check each individual register access. The first failing call will set the contents of err to a non 0 value and all other calls will then become no-ops. Link: https://lore.kernel.org/linux-media/59aefa7f-7bf9-6736-6040-39551329cd0a@redhat.com/ Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Tested-by: Tommaso Merciai <tomm.merciai@gmail.com> Reviewed-by: Tommaso Merciai <tomm.merciai@gmail.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>		2023-08-10 07:58:38 +02:00
..
80211
acpi	Documentation: ACPI: fix error script name	2021-06-17 13:21:48 -06:00
backlight
cxl	Documentation: cxl: remove dangling kernel-doc reference	2022-08-05 08:41:02 -07:00
dmaengine	Documentation: driver-api: correct spelling	2023-02-02 11:05:16 -07:00
driver-model	devres: Provide krealloc_array	2023-05-30 21:07:15 +01:00
early-userspace	Documentation: Fix intiramfs script name	2021-07-18 23:48:14 +09:00
firmware	Driver core changes for 6.4-rc1	2023-04-27 11:53:57 -07:00
fpga	docs: fpga: mgr: document parse_header() callback	2022-06-24 12:12:24 +08:00
gpio	gpiolib: remove unused gpio_cansleep()	2023-06-13 16:49:23 +02:00
hte	hte: Re-phrase tegra API document	2023-04-26 15:43:19 -07:00
i3c
iio	docs: iio: mark "repeat" sysfs attribute as optional	2021-03-11 20:47:08 +00:00
md	Documentation: driver-api: correct spelling	2023-02-02 11:05:16 -07:00
media	media: Add MIPI CCI register access helper functions	2023-08-10 07:58:38 +02:00
mei	Documentation: driver-api: correct spelling	2023-02-02 11:05:16 -07:00
memory-devices
mmc	docs: mmc: update maintainer name and URL	2021-10-28 11:54:54 +02:00
mtd	mtd: spi-nor: Stop exporting spi_nor_restore()	2023-04-04 09:43:50 +03:00
nfc	Documentation: driver-api: correct spelling	2023-02-02 11:05:16 -07:00
nvdimm	Documentation: driver-api: correct spelling	2023-02-02 11:05:16 -07:00
pci	PCI/MSI: Move code into a separate directory	2021-12-09 11:52:22 +01:00
phy	phy: Add devm_of_phy_optional_get() helper	2023-02-03 10:52:49 +05:30
pldmfw	Documentation: driver-api: correct spelling	2023-02-02 11:05:16 -07:00
pm	docs: devices.rst: better reference documentation docs	2021-06-17 13:24:36 -06:00
rapidio
serial	Documentation: driver-api: correct spelling	2023-02-02 11:05:16 -07:00
soundwire
surface_aggregator	It has been a moderately calm cycle for documentation; the significant	2023-02-22 12:00:20 -08:00
thermal	thermal: intel: int340x: Add DLVR support for RFIM control	2023-04-18 15:24:40 +02:00
tty	tty: n_gsm: add ioctl for DLC config via ldisc handle	2023-03-29 10:50:48 +02:00
usb	Documentation: driver-api: correct spelling	2023-02-02 11:05:16 -07:00
virtio	docs: driver-api: virtio: commentize spec version checking	2023-02-20 19:26:57 -05:00
xilinx	firmware: xilinx: Remove zynqmp_pm_get_eemi_ops() in IS_REACHABLE(CONFIG_ZYNQMP_FIRMWARE)	2021-03-01 12:52:07 +01:00
aperture.rst	drm: Implement DRM aperture helpers under video/	2022-06-27 11:07:55 +02:00
auxiliary_bus.rst	Documentation/auxiliary_bus: Move the text into the code	2021-12-03 16:41:50 +01:00
basics.rst	locking/atomic: docs: Add atomic operations to the driver basic API documentation	2023-06-05 09:57:24 +02:00
clk.rst	docs: clk: add documentation to log which clocks have been disabled	2023-04-20 17:53:38 -06:00
component.rst
connector.rst	net/connector: Add const qualifier to cb_id	2020-12-16 11:06:49 -08:00
console.rst
dcdbas.rst
devfreq.rst
device_link.rst
device-io.rst	docs: move x86 documentation into Documentation/arch/	2023-03-30 12:58:51 -06:00
dma-buf.rst	dma-buf/sync_file: Surface sync-file uABI	2023-03-28 13:39:02 -07:00
edac.rst	EDAC/amd64: Document heterogeneous system enumeration	2023-06-05 12:27:15 +02:00
eisa.rst	Documentation: eisa: Fix typo	2022-11-15 14:52:38 -07:00
firewire.rst	Documentation: fix firewire.rst ABI file path error	2022-01-20 17:01:32 -07:00
frame-buffer.rst
generic-counter.rst	counter: Update documentation for new counter registration functions	2021-12-30 17:44:06 +01:00
hsi.rst	Documentation: driver-api: correct spelling	2023-02-02 11:05:16 -07:00
i2c.rst
index.rst	platform/x86: wmi: Add documentation	2023-05-09 11:54:42 +02:00
infiniband.rst
infrastructure.rst
input.rst	Input: remove input_polled_dev implementation	2020-12-02 12:35:14 -08:00
interconnect.rst
io_ordering.rst
io-mapping.rst	Documentation: driver-api: correct spelling	2023-02-02 11:05:16 -07:00
ioctl.rst	docs: driver-api: avoid using ReST :doc:foo markup	2021-06-17 13:24:37 -06:00
ipmb.rst
ipmi.rst	ipmi: Add docs for the IPMI IPMB driver	2021-10-05 06:54:17 -05:00
isa.rst	Remove duplicate words inside documentation	2022-09-27 13:21:43 -06:00
isapnp.rst
libata.rst	libata: Improve ATA queued command allocation	2022-04-11 09:27:44 +09:00
mailbox.rst
men-chameleon-bus.rst	Documentation: document dma device use for mcb	2021-01-11 13:26:13 -07:00
message-based.rst
misc_devices.rst
miscellaneous.rst	docs/driver-api/miscellaneous: Remove kernel-doc of serial_core.c	2022-11-09 14:56:05 +01:00
mtdnand.rst	docs: mtd: Avoid htmldocs warnings	2020-12-10 22:37:32 +01:00
ntb.rst	ntb.rst: Fix copy and paste error	2023-07-08 11:05:05 -04:00
nvmem.rst	nvmem: core: introduce NVMEM layouts	2023-04-05 19:41:11 +02:00
parport-lowlevel.rst
pin-control.rst	It has been a moderately calm cycle for documentation; the significant	2023-02-22 12:00:20 -08:00
pps.rst
ptp.rst	docs: ptp.rst: Add information about NVIDIA Mellanox devices	2023-06-20 09:02:32 +01:00
pwm.rst	pwm: Delete deprecated functions pwm_request() and pwm_free()	2023-04-13 14:27:53 +02:00
regulator.rst
reset.rst	docs: add a reset controller chapter to the driver API docs	2020-12-08 10:48:04 -07:00
rfkill.rst
s390-drivers.rst
scsi.rst
slimbus.rst
sm501.rst
spi.rst	spi: Update reference to struct spi_controller	2022-11-01 18:30:09 +00:00
switchtec.rst
sync_file.rst
target.rst
uio-howto.rst
vfio-mediated-device.rst	vfio-mdev: remove an non-existing driver from vfio-mediated-device	2023-01-23 11:26:29 -07:00
vfio-pci-device-specific-driver-acceptance.rst	vfio-pci: Provide reviewers and acceptance criteria for variant drivers	2022-03-17 09:57:11 -06:00
vfio.rst	docs: vfio: fix header path	2023-03-14 11:31:57 -06:00
vme.rst	vme: move back to staging	2022-06-10 15:38:14 +02:00
w1.rst
wmi.rst	platform/x86: wmi: Add documentation	2023-05-09 11:54:42 +02:00
xillybus.rst
zorro.rst