The text in this new document is a response to recurring questions
about the GPIO in-kernel API vs the userspace ABI. When do you use
one or the other? It can be a bit intuitive, but I tried to sum it
all up.
Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Link: https://lore.kernel.org/r/20200108001712.47500-1-linus.walleij@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This adds a pointer to the CEC GPIO driver from the GPIO list of
examples of drivers on top of GPIO.
Cc: linux-media@vger.kernel.org
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Core:
* Remove support for asynchronous erase (not implemented by any of
the existing drivers anyway)
* Remove Cyrille from the list of SPI NOR and MTD maintainers
* Fix kernel doc headers
* Allow users to define the partitions parsers they want to test
through a DT property (compatible of the partitions subnode)
* Remove the bfin-async-flash driver (the only architecture using
it has been removed)
* Fix pagetest test
* Add extra checks in mtd_erase()
* Simplify the MTD partition creation logic and get rid of
mtd_add_device_partitions()
Drivers:
* Add endianness information to the physmap DT binding
* Add Eon EN29LV400A IDs to JEDEC probe logic
* Use %*ph where appropriate
SPI NOR changes:
Drivers:
* Make fsl-quaspi assign different names to MTD devices connected
to the same QSPI controller
* Remove an unneeded driver.bus assigned in the fsl-qspi driver
NAND changes:
Core:
* Prepare arrival of the SPI NAND subsystem by implementing a
generic (interface-agnostic) layer to ease manipulation of NAND
devices
* Move onenand code base to the drivers/mtd/nand/ dir
* Rework timing mode selection
* Provide a generic way for NAND chip drivers to flag a specific
GET/SET FEATURE operation as supported/unsupported
* Stop embedding ONFI/JEDEC param page in nand_chip
Drivers:
* Rework/cleanup of the mxc driver
* Various cleanups in the vf610 driver
* Migrate the fsmc and vf610 to ->exec_op()
* Get rid of the pxa driver (replaced by marvell_nand)
* Support ->setup_data_interface() in the GPMI driver
* Fix probe error path in several drivers
* Remove support for unused hw_syndrome mode in sunxi_nand
* Various minor improvements
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Merge tag 'mtd/for-4.17' of git://git.infradead.org/linux-mtd
Pull MTD updates from Boris Brezillon:
"MTD Core:
- Remove support for asynchronous erase (not implemented by any of
the existing drivers anyway)
- Remove Cyrille from the list of SPI NOR and MTD maintainers
- Fix kernel doc headers
- Allow users to define the partitions parsers they want to test
through a DT property (compatible of the partitions subnode)
- Remove the bfin-async-flash driver (the only architecture using it
has been removed)
- Fix pagetest test
- Add extra checks in mtd_erase()
- Simplify the MTD partition creation logic and get rid of
mtd_add_device_partitions()
MTD Drivers:
- Add endianness information to the physmap DT binding
- Add Eon EN29LV400A IDs to JEDEC probe logic
- Use %*ph where appropriate
SPI NOR Drivers:
- Make fsl-quaspi assign different names to MTD devices connected to
the same QSPI controller
- Remove an unneeded driver.bus assigned in the fsl-qspi driver
NAND Core:
- Prepare arrival of the SPI NAND subsystem by implementing a generic
(interface-agnostic) layer to ease manipulation of NAND devices
- Move onenand code base to the drivers/mtd/nand/ dir
- Rework timing mode selection
- Provide a generic way for NAND chip drivers to flag a specific
GET/SET FEATURE operation as supported/unsupported
- Stop embedding ONFI/JEDEC param page in nand_chip
NAND Drivers:
- Rework/cleanup of the mxc driver
- Various cleanups in the vf610 driver
- Migrate the fsmc and vf610 to ->exec_op()
- Get rid of the pxa driver (replaced by marvell_nand)
- Support ->setup_data_interface() in the GPMI driver
- Fix probe error path in several drivers
- Remove support for unused hw_syndrome mode in sunxi_nand
- Various minor improvements"
* tag 'mtd/for-4.17' of git://git.infradead.org/linux-mtd: (89 commits)
dt-bindings: fsl-quadspi: Add the example of two SPI NOR
mtd: fsl-quadspi: Distinguish the mtd device names
mtd: nand: Fix some function description mismatches in core.c
mtd: fsl-quadspi: Remove unneeded driver.bus assignment
mtd: rawnand: marvell: Rename ->ecc_clk into ->core_clk
mtd: rawnand: s3c2410: enhance the probe function error path
mtd: rawnand: tango: fix probe function error path
mtd: rawnand: sh_flctl: fix the probe function error path
mtd: rawnand: omap2: fix the probe function error path
mtd: rawnand: mxc: fix probe function error path
mtd: rawnand: denali: fix probe function error path
mtd: rawnand: davinci: fix probe function error path
mtd: rawnand: cafe: fix probe function error path
mtd: rawnand: brcmnand: fix probe function error path
mtd: rawnand: sunxi: Stop supporting ECC_HW_SYNDROME mode
mtd: rawnand: marvell: Fix clock resource by adding a register clock
mtd: ftl: Use DIV_ROUND_UP()
mtd: Fix some function description mismatches in mtdcore.c
mtd: physmap_of: update struct map_info's swap as per map requirement
dt-bindings: mtd-physmap: Add endianness supports
...
Move gpio/drivers-on-gpio.txt to driver-api/gpio/drivers-on-gpio.rst and
make sure it builds cleanly as ReST.
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Linus Walleij