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Miquel Raynal b85c943d18 mtd: rawnand: Add a helper to parse the gpio-cs DT property 
New chips may feature a lot of CS because of their extended length. As
many controllers have been designed a decade ago, they usually only
feature just a couple. This does not mean that the entire range of
these chips cannot be accessed: it is just a matter of adding more
GPIO CS in the hardware design. A DT property has been added to
describe the CS array: cs-gpios.

Here is the code parsing it this new property, allocating what needs to
be, requesting the GPIOs and returning an array with the additional
available CS. The first entries of this array are left empty and are
reserved for native CS.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210526093242.183847-3-miquel.raynal@bootlin.com
2021-05-26 16:26:32 +02:00
..
bbm.h mtd: rawnand: Stop using nand_release() 2020-05-31 10:53:40 +02:00
blktrans.h mtd: Add helper macro for register_mtd_blktrans boilerplate 2021-03-11 09:37:48 +01:00
cfi.h mtd: Replace zero-length array with flexible-array 2020-05-26 13:30:06 +05:30
cfi_endian.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 102 2019-05-24 17:39:00 +02:00
concat.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 102 2019-05-24 17:39:00 +02:00
doc2000.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 102 2019-05-24 17:39:00 +02:00
flashchip.h mtd: onenand: omap2: Fix errors in style 2020-01-09 20:08:15 +01:00
ftl.h
gen_probe.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 102 2019-05-24 17:39:00 +02:00
hyperbus.h mtd: hyperbus: add Renesas RPC-IF driver 2020-10-06 12:36:21 +05:30
inftl.h
jedec.h
latch-addr-flash.h
lpc32xx_mlc.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
lpc32xx_slc.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
map.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 102 2019-05-24 17:39:00 +02:00
mtd.h mtd: core: Constify buf in mtd_write_user_prot_reg() 2021-04-16 20:30:54 +02:00
mtdram.h
nand-ecc-sw-bch.h mtd: nand: ecc-bch: Use the public nsteps field 2021-03-11 09:37:28 +01:00
nand-ecc-sw-hamming.h mtd: nand: ecc-hamming: Use the public nsteps field 2021-03-11 09:37:28 +01:00
nand-gpio.h
nand.h mtd: nand: Add a helper to retrieve the number of ECC bytes per step 2021-03-11 09:37:28 +01:00
ndfc.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
nftl.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 102 2019-05-24 17:39:00 +02:00
onenand.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
onenand_regs.h This pull-request contains the following changes for MTD: 2019-07-13 15:42:44 -07:00
onfi.h mtd: rawnand: Support enabling NV-DDR through SET_FEATURES 2021-05-26 10:51:00 +02:00
partitions.h mtd: Add support for emulated SLC mode on MLC NANDs 2020-05-11 09:51:41 +02:00
pfow.h mtd: lpddr: Move function print_drs_error to lpddr_cmds.c 2020-08-27 14:14:46 +02:00
physmap.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
pismo.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 178 2019-05-30 11:29:19 -07:00
plat-ram.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
platnand.h
qinfo.h mtd: Replace zero-length array with flexible-array 2020-05-26 13:30:06 +05:30
rawnand.h mtd: rawnand: Add a helper to parse the gpio-cs DT property 2021-05-26 16:26:32 +02:00
sh_flctl.h
sharpsl.h mtd: nand: ecc-hamming: Remove useless includes 2020-12-10 22:37:30 +01:00
spear_smi.h
spi-nor.h mtd: spi-nor: implement OTP support for Winbond and similar flashes 2021-04-02 09:32:27 +03:00
spinand.h mtd: spinand: Instantiate a SPI-NAND on-die ECC engine 2020-12-10 22:37:30 +01:00
super.h mtd: Kill mount_mtd() 2019-09-05 14:34:26 -04:00
ubi.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
xip.h treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00