summaryrefslogtreecommitdiff
path: root/drivers/mtd/nand/raw
AgeCommit message (Collapse)Author
2024-11-21Merge tag 'nand/for-6.13' into mtd/nextMiquel Raynal
SPI-NAND changes: A load of fixes to Winbond manufacturer driver have been done, plus a structure constification. Raw NAND changes: The GPMI driver has been improved on the power management side. The Davinci driver has been cleaned up. A leak in the Atmel driver plus some typos in the core have been fixed.
2024-10-21mtd: Switch back to struct platform_driver::remove()Uwe Kleine-König
After commit 0edb555a65d1 ("platform: Make platform_driver::remove() return void") .remove() is (again) the right callback to implement for platform drivers. Convert all platform drivers below drivers/mtd to use .remove(), with the eventual goal to drop struct platform_driver::remove_new(). As .remove() and .remove_new() have the same prototypes, conversion is done by just changing the structure member name in the driver initializer. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20241007205803.444994-10-u.kleine-koenig@baylibre.com
2024-10-21mtd: nand: raw: gpmi: improve power management handlingHan Xu
Refactor the power management handling in the gpmi nand driver. Remove redundant pm_runtime calls in the driver probe function. Handle the pad control and use the leverage runtime suspend and resume calls to take care of clocks in system suspend and resume functions. Signed-off-by: Han Xu <han.xu@nxp.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20241007191319.220775-2-han.xu@nxp.com
2024-10-21mtd: nand: raw: gpmi: switch to SYSTEM_SLEEP_PM_OPSHan Xu
Replace the SET_SYSTEM_SLEEP_PM_OPS with modern SYSTEM_SLEEP_PM_OPS alternatives. Signed-off-by: Han Xu <han.xu@nxp.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20241007191319.220775-1-han.xu@nxp.com
2024-10-21mtd: rawnand: davinci: use generic device property helpersBartosz Golaszewski
There's no reason for this driver to be using OF-specific property accessors. Switch to using generic device property interfaces and replace the of.h include with property.h. This allows us to no longer check the existence of the associated of_node. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20241007122350.75285-3-brgl@bgdev.pl
2024-10-21mtd: rawnand: davinci: break the line correctlyBartosz Golaszewski
The line in nand_davinci_get_pdata() prototype is broken in a weird and unreadable way. Make it consistent with the rest of the code. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20241007122350.75285-2-brgl@bgdev.pl
2024-10-21mtd: rawnand: davinci: order headers alphabeticallyBartosz Golaszewski
For better readability, put all includes in alphabetical order. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20241007122350.75285-1-brgl@bgdev.pl
2024-10-21mtd: rawnand: atmel: Fix possible memory leakMiquel Raynal
The pmecc "user" structure is allocated in atmel_pmecc_create_user() and was supposed to be freed with atmel_pmecc_destroy_user(), but this other helper is never called. One solution would be to find the proper location to call the destructor, but the trend today is to switch to device managed allocations, which in this case fits pretty well. Replace kzalloc() by devm_kzalloc() and drop the destructor entirely. Reported-by: "Dr. David Alan Gilbert" <linux@treblig.org> Closes: https://lore.kernel.org/all/ZvmIvRJCf6VhHvpo@gallifrey/ Fixes: f88fc122cc34 ("mtd: nand: Cleanup/rework the atmel_nand driver") Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20241001203149.387655-1-miquel.raynal@bootlin.com
2024-10-21mtd: rawnand: Correct multiple typos in commentsShen Lichuan
Fixed some confusing spelling errors, the details are as follows: -in the code comments: remaing -> remaining alingment -> alignment capabilitiies -> capabilities operatoin -> operation decriptors -> descriptors stareted -> started Unfortunelly -> Unfortunately compatabable -> compatible depenent -> dependent Signed-off-by: Shen Lichuan <shenlichuan@vivo.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20240923065649.11966-1-shenlichuan@vivo.com
2024-10-02move asm/unaligned.h to linux/unaligned.hAl Viro
asm/unaligned.h is always an include of asm-generic/unaligned.h; might as well move that thing to linux/unaligned.h and include that - there's nothing arch-specific in that header. auto-generated by the following: for i in `git grep -l -w asm/unaligned.h`; do sed -i -e "s/asm\/unaligned.h/linux\/unaligned.h/" $i done for i in `git grep -l -w asm-generic/unaligned.h`; do sed -i -e "s/asm-generic\/unaligned.h/linux\/unaligned.h/" $i done git mv include/asm-generic/unaligned.h include/linux/unaligned.h git mv tools/include/asm-generic/unaligned.h tools/include/linux/unaligned.h sed -i -e "/unaligned.h/d" include/asm-generic/Kbuild sed -i -e "s/__ASM_GENERIC/__LINUX/" include/linux/unaligned.h tools/include/linux/unaligned.h
2024-09-26Merge tag 'soc-ep93xx-dt-6.12' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull SoC update from Arnd Bergmann: "Convert ep93xx to devicetree This concludes a long journey towards replacing the old board files with devictree description on the Cirrus Logic EP93xx platform. Nikita Shubin has been working on this for a long time, for details see the last post on https://lore.kernel.org/lkml/20240909-ep93xx-v12-0-e86ab2423d4b@maquefel.me/" * tag 'soc-ep93xx-dt-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (47 commits) dt-bindings: gpio: ep9301: Add missing "#interrupt-cells" to examples MAINTAINERS: Update EP93XX ARM ARCHITECTURE maintainer soc: ep93xx: drop reference to removed EP93XX_SOC_COMMON config net: cirrus: use u8 for addr to calm down sparse dmaengine: cirrus: use snprintf() to calm down gcc 13.3.0 dmaengine: ep93xx: Fix a NULL vs IS_ERR() check in probe() pinctrl: ep93xx: Fix raster pins typo spi: ep93xx: update kerneldoc comments for ep93xx_spi clk: ep93xx: Fix off by one in ep93xx_div_recalc_rate() clk: ep93xx: add module license dmaengine: cirrus: remove platform code ASoC: cirrus: edb93xx: Delete driver ARM: ep93xx: soc: drop defines ARM: ep93xx: delete all boardfiles ata: pata_ep93xx: remove legacy pinctrl use pwm: ep93xx: drop legacy pinctrl ARM: ep93xx: DT for the Cirrus ep93xx SoC platforms ARM: dts: ep93xx: Add EDB9302 DT ARM: dts: ep93xx: add ts7250 board ARM: dts: add Cirrus EP93XX SoC .dtsi ...
2024-09-21Merge tag 'mm-nonmm-stable-2024-09-21-07-52' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull non-MM updates from Andrew Morton: "Many singleton patches - please see the various changelogs for details. Quite a lot of nilfs2 work this time around. Notable patch series in this pull request are: - "mul_u64_u64_div_u64: new implementation" by Nicolas Pitre, with assistance from Uwe Kleine-König. Reimplement mul_u64_u64_div_u64() to provide (much) more accurate results. The current implementation was causing Uwe some issues in the PWM drivers. - "xz: Updates to license, filters, and compression options" from Lasse Collin. Miscellaneous maintenance and kinor feature work to the xz decompressor. - "Fix some GDB command error and add some GDB commands" from Kuan-Ying Lee. Fixes and enhancements to the gdb scripts. - "treewide: add missing MODULE_DESCRIPTION() macros" from Jeff Johnson. Adds lots of MODULE_DESCRIPTIONs, thus fixing lots of warnings about this. - "nilfs2: add support for some common ioctls" from Ryusuke Konishi. Adds various commonly-available ioctls to nilfs2. - "This series fixes a number of formatting issues in kernel doc comments" from Ryusuke Konishi does that. - "nilfs2: prevent unexpected ENOENT propagation" from Ryusuke Konishi. Fix issues where -ENOENT was being unintentionally and inappropriately returned to userspace. - "nilfs2: assorted cleanups" from Huang Xiaojia. - "nilfs2: fix potential issues with empty b-tree nodes" from Ryusuke Konishi fixes some issues which can occur on corrupted nilfs2 filesystems. - "scripts/decode_stacktrace.sh: improve error reporting and usability" from Luca Ceresoli does those things" * tag 'mm-nonmm-stable-2024-09-21-07-52' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (103 commits) list: test: increase coverage of list_test_list_replace*() list: test: fix tests for list_cut_position() proc: use __auto_type more treewide: correct the typo 'retun' ocfs2: cleanup return value and mlog in ocfs2_global_read_info() nilfs2: remove duplicate 'unlikely()' usage nilfs2: fix potential oob read in nilfs_btree_check_delete() nilfs2: determine empty node blocks as corrupted nilfs2: fix potential null-ptr-deref in nilfs_btree_insert() user_namespace: use kmemdup_array() instead of kmemdup() for multiple allocation tools/mm: rm thp_swap_allocator_test when make clean squashfs: fix percpu address space issues in decompressor_multi_percpu.c lib: glob.c: added null check for character class nilfs2: refactor nilfs_segctor_thread() nilfs2: use kthread_create and kthread_stop for the log writer thread nilfs2: remove sc_timer_task nilfs2: do not repair reserved inode bitmap in nilfs_new_inode() nilfs2: eliminate the shared counter and spinlock for i_generation nilfs2: separate inode type information from i_state field nilfs2: use the BITS_PER_LONG macro ...
2024-09-12mtd: rawnand: add support for ts72xxNikita Shubin
Technologic Systems has it's own nand controller implementation in CPLD. Signed-off-by: Nikita Shubin <nikita.shubin@maquefel.me> Tested-by: Alexander Sverdlin <alexander.sverdlin@gmail.com> Acked-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-09-09treewide: correct the typo 'retun'WangYuli
There are some spelling mistakes of 'retun' in comments which should be instead of 'return'. Link: https://lkml.kernel.org/r/63D0F870EE8E87A0+20240906054008.390188-1-wangyuli@uniontech.com Signed-off-by: WangYuli <wangyuli@uniontech.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-09-09mtd: rawnand: mtk: Fix init error pathMiquel Raynal
Reviewing a series converting the for_each_chil_of_node() loops into their _scoped variants made me realize there was no cleanup of the already registered NAND devices upon error which may leak memory on systems with more than a chip when this error occurs. We should call the _nand_chips_cleanup() function when this happens. Fixes: 1d6b1e464950 ("mtd: mediatek: driver for MTK Smart Device") Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Pratyush Yadav <pratyush@kernel.org> Reviewed-by: Matthias Brugger <matthias.bgg@kernel.org> Link: https://lore.kernel.org/linux-mtd/20240826153019.67106-2-miquel.raynal@bootlin.com
2024-09-06mtd: rawnand: mtk: Factorize out the logic cleaning mtk chipsMiquel Raynal
There are some un-freed resources in one of the error path which would benefit from a helper going through all the registered mtk chips one by one and perform all the necessary cleanup. This is precisely what the remove path does, so let's extract the logic in a helper. There is no functional change. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Pratyush Yadav <pratyush@kernel.org> Reviewed-by: Matthias Brugger <matthias.bgg@kernel.org> Link: https://lore.kernel.org/linux-mtd/20240826153019.67106-1-miquel.raynal@bootlin.com
2024-09-06mtd: rawnand: atmel: Add message on DMA usageAlexander Dahl
Like for other atmel drivers (serial, crypto, mmc, …), too. Signed-off-by: Alexander Dahl <ada@thorsis.com> Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20240828063707.73869-1-ada@thorsis.com
2024-09-06mtd: rawnand: meson: Fix typo in function nameMiquel Raynal
There is a reason why sometime we write "NAND chip" with an 's'. It usually means several chips can be managed by the same controller. So when initializing a single chip at a time, the wording "chip" must be used, otherwise when talking about all the chips managed by the controller, we want to use "chips". Fix the function name to clarify the meson_nfc_nand_chip*s*_cleanup() helper intend. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Pratyush Yadav <pratyush@kernel.org> Link: https://lore.kernel.org/linux-mtd/20240826153158.67334-1-miquel.raynal@bootlin.com
2024-09-06mtd: rawnand: sunxi: Use for_each_child_of_node_scoped()Jinjie Ruan
Avoids the need for manual cleanup of_node_put() in early exits from the loop. Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20240826094328.2991664-11-ruanjinjie@huawei.com
2024-09-06mtd: rawnand: stm32_fmc2: Use for_each_child_of_node_scoped()Jinjie Ruan
Avoids the need for manual cleanup of_node_put() in early exits from the loop. Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20240826094328.2991664-10-ruanjinjie@huawei.com
2024-09-06mtd: rawnand: renesas: Use for_each_child_of_node_scoped()Jinjie Ruan
Avoids the need for manual cleanup of_node_put() in early exits from the loop. Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20240826094328.2991664-9-ruanjinjie@huawei.com
2024-09-06mtd: rawnand: mtk: Use for_each_child_of_node_scoped()Jinjie Ruan
Avoids the need for manual cleanup of_node_put() in early exits from the loop. Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20240826094328.2991664-8-ruanjinjie@huawei.com
2024-09-06mtd: rawnand: meson: Use for_each_child_of_node_scoped()Jinjie Ruan
Avoids the need for manual cleanup of_node_put() in early exits from the loop. Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20240826094328.2991664-7-ruanjinjie@huawei.com
2024-09-06mtd: rawnand: rockchip: Use for_each_child_of_node_scoped()Jinjie Ruan
Avoids the need for manual cleanup of_node_put() in early exits from the loop. Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20240826094328.2991664-6-ruanjinjie@huawei.com
2024-09-06mtd: rawnand: marvell: drm/rockchip: Use for_each_child_of_node_scoped()Jinjie Ruan
Avoids the need for manual cleanup of_node_put() in early exits from the loop. Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20240826094328.2991664-5-ruanjinjie@huawei.com
2024-09-06mtd: rawnand: pl353: Use for_each_child_of_node_scoped()Jinjie Ruan
Avoids the need for manual cleanup of_node_put() in early exits from the loop by using for_each_child_of_node_scoped(). Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20240826094328.2991664-4-ruanjinjie@huawei.com
2024-09-06mtd: rawnand: cadence: Use for_each_child_of_node_scoped()Jinjie Ruan
Avoids the need for manual cleanup of_node_put() in early exits from the loop by using for_each_child_of_node_scoped(). Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20240826094328.2991664-3-ruanjinjie@huawei.com
2024-09-06mtd: rawnand: arasan: Use for_each_child_of_node_scoped()Jinjie Ruan
Avoids the need for manual cleanup of_node_put() in early exits from the loop. Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20240826094328.2991664-2-ruanjinjie@huawei.com
2024-09-06mtd: rawnand: denali: Use the devm_clk_get_enabled() helper functionJinjie Ruan
The devm_clk_get_enabled() helper: - calls devm_clk_get() - calls clk_prepare_enable() and registers what is needed in order to call clk_disable_unprepare() when needed, as a managed resource. This simplifies the code. Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20240826080408.2522978-1-ruanjinjie@huawei.com
2024-09-06mtd: rawnand: denali: Fix missing pci_release_regions in probe and removeChen Ridong
The pci_release_regions was miss at error case, just add it. Signed-off-by: Chen Ridong <chenridong@huawei.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20240826024339.476921-1-chenridong@huawei.com
2024-08-23mtd: rawnand: davinci: make platform_data privateBartosz Golaszewski
There are no longer any users of the platform data for davinci rawnand in board files. We can remove the public pdata headers and move the structures that are still used into the driver compilation unit while removing the rest. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20240814122120.13975-1-brgl@bgdev.pl
2024-07-20Merge tag 'mtd/for-6.11' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux Pull MTD updates from Miquel Raynal: "Nothing stands out for this merge window, mostly minor fixes, such as module descriptions, the use of debug macros and Makefile improvements. Raw NAND changes; - The Freescale MXC driver has been converted to the newer '->exec_op()' interface - The meson driver now supports handling the boot ROM area with very specific ECC needs - Support for the iMX8QXP has been added to the GPMI driver - The lpx32xx driver now can get the DMA channels using DT entries - The Qcom binding has been improved to be more future proof by Rob - And then there is the usual load of misc and minor changes SPI-NAND changes: - The Macronix vendor driver has been improved to support an extended ID to avoid conflicting with older devices after an ID reuse issue SPI NOR changes: - Drop support for Xilinx S3AN flashes. These flashes are for the very old Xilinx Spartan 3 FPGAs and they need some awkward code in the core to support. Drop support for these flashes, along with the special handling we needed for them in the core like non-power-of-2 page size handling and the .setup() callback. - Fix regression for old w25q128 flashes without SFDP tables. Commit 83e824a4a595 ("mtd: spi-nor: Correct flags for Winbond w25q128") dropped support for such devices under the assumption that they aren't being used anymore. Users have now surfaced [0] so fix the regression by supporting both kind of devices. - Core cleanups including removal of SPI_NOR_NO_FR flag and simplification of spi_nor_get_flash_info()" Link: https://lore.kernel.org/r/CALxbwRo_-9CaJmt7r7ELgu+vOcgk=xZcGHobnKf=oT2=u4d4aA@mail.gmail.com/ [0] * tag 'mtd/for-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (28 commits) mtd: rawnand: lpx32xx: Fix dma_request_chan() error checks mtd: spinand: macronix: Add support for serial NAND flash mtd: spinand: macronix: Add support for reading Device ID 2 mtd: rawnand: lpx32xx: Request DMA channels using DT entries dt-bindings: mtd: qcom,nandc: Define properties at top-level mtd: rawnand: intel: use 'time_left' variable with wait_for_completion_timeout() mtd: rawnand: mxc: use 'time_left' variable with wait_for_completion_timeout() mtd: rawnand: gpmi: add iMX8QXP support. mtd: rawnand: gpmi: add 'support_edo_timing' in gpmi_devdata mtd: cmdlinepart: Replace `dbg()` macro with `pr_debug()` mtd: add missing MODULE_DESCRIPTION() macros mtd: make mtd_test.c a separate module dt-bindings: mtd: gpmi-nand: Add 'fsl,imx8qxp-gpmi-nand' compatible string mtd: rawnand: cadence: remove unused struct 'ecc_info' mtd: rawnand: mxc: support software ECC mtd: rawnand: mxc: implement exec_op mtd: rawnand: mxc: separate page read from ecc calc mtd: spi-nor: winbond: fix w25q128 regression mtd: spi-nor: simplify spi_nor_get_flash_info() mtd: spi-nor: get rid of SPI_NOR_NO_FR ...
2024-07-17mtd: rawnand: lpx32xx: Fix dma_request_chan() error checksPiotr Wojtaszczyk
The dma_request_chan() returns error pointer in case of error, while dma_request_channel() returns NULL in case of error therefore different error checks are needed for the two. Fixes: 7326d3fb1ee3 ("mtd: rawnand: lpx32xx: Request DMA channels using DT entries") Signed-off-by: Piotr Wojtaszczyk <piotr.wojtaszczyk@timesys.com> Cc: stable@vger.kernel.org Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20240705115139.126522-1-piotr.wojtaszczyk@timesys.com
2024-07-17mtd: rawnand: lpx32xx: Request DMA channels using DT entriesPiotr Wojtaszczyk
Move away from pl08x platform data towards device tree. Signed-off-by: Piotr Wojtaszczyk <piotr.wojtaszczyk@timesys.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20240627150046.258795-11-piotr.wojtaszczyk@timesys.com
2024-07-17mtd: rawnand: intel: use 'time_left' variable with wait_for_completion_timeout()Wolfram Sang
There is a confusing pattern in the kernel to use a variable named 'timeout' to store the result of wait_for_completion_timeout() causing patterns like: timeout = wait_for_completion_timeout(...) if (!timeout) return -ETIMEDOUT; with all kinds of permutations. Use 'time_left' as a variable to make the code self explaining. Fix to the proper variable type 'unsigned long' while here. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20240604212919.5038-6-wsa+renesas@sang-engineering.com
2024-07-17mtd: rawnand: mxc: use 'time_left' variable with wait_for_completion_timeout()Wolfram Sang
There is a confusing pattern in the kernel to use a variable named 'timeout' to store the result of wait_for_completion_timeout() causing patterns like: timeout = wait_for_completion_timeout(...) if (!timeout) return -ETIMEDOUT; with all kinds of permutations. Use 'time_left' as a variable to make the code self explaining. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20240604212919.5038-5-wsa+renesas@sang-engineering.com
2024-07-17mtd: rawnand: gpmi: add iMX8QXP support.Han Xu
Add "fsl,imx8qxp-gpmi-nand" compatible string. iMX8QXP gpmi nand is similar to iMX7D. But it is using 4 clocks: "gpmi_io", "gpmi_apb", "gpmi_bch" and "gpmi_bch_apb". Signed-off-by: Han Xu <han.xu@nxp.com> Signed-off-by: Frank Li <Frank.Li@nxp.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20240520-gpmi_nand-v2-4-e3017e4c9da5@nxp.com
2024-07-17mtd: rawnand: gpmi: add 'support_edo_timing' in gpmi_devdataFrank Li
Introduce a boolean flag, 'support_edo_timing', within gpmi_devdata to simplify the logic check in gpmi_setup_interface(). This is made in preparation for adding support for imx8qxp gpmi. Signed-off-by: Frank Li <Frank.Li@nxp.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20240520-gpmi_nand-v2-3-e3017e4c9da5@nxp.com
2024-07-16Merge tag 'soc-drivers-6.11' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull SoC driver updates from Arnd Bergmann: "The updates to the mediatek, allwinner, ti, tegra, microchip, stm32, samsung, imx, zynq and amlogic platoforms are fairly small maintenance changes, either addressing minor mistakes or enabling additional hardware. The qualcomm platform changes add a number of features and are larger than the other ones combined, introducing the use of linux/cleanup.h across several drivers, adding support for Snapdragon X1E and other SoCs in platform drivers, a new "protection domain mapper" driver, and a "shared memory bridge" driver. The cznic "turris omnia" router based on Marvell Armada gets a platform driver that talks to the board specific microcontroller. The reset and cache subsystems get a few minor updates to SoC specific drivers, while the ff-a, scmi and optee firmware drivers get some code refactoring and new features" * tag 'soc-drivers-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (122 commits) firmware: turris-mox-rwtm: Initialize completion before mailbox firmware: turris-mox-rwtm: Fix checking return value of wait_for_completion_timeout() firmware: turris-mox-rwtm: Do not complete if there are no waiters MAINTAINERS: drop riscv list from cache controllers platform: cznic: turris-omnia-mcu: fix Kconfig dependencies bus: sunxi-rsb: Constify struct regmap_bus soc: sunxi: sram: Constify struct regmap_config platform: cznic: turris-omnia-mcu: Depend on WATCHDOG platform: cznic: turris-omnia-mcu: Depend on OF soc: samsung: exynos-pmu: add support for PMU_ALIVE non atomic registers arm64: stm32: enable scmi regulator for stm32 firmware: qcom: tzmem: blacklist more platforms for SHM Bridge soc: qcom: wcnss: simplify with cleanup.h soc: qcom: pdr: simplify with cleanup.h soc: qcom: ocmem: simplify with cleanup.h soc: qcom: mdt_loader: simplify with cleanup.h soc: qcom: llcc: simplify with cleanup.h firmware: qcom: tzmem: simplify returning pointer without cleanup soc: qcom: socinfo: Add PM6350 PMIC arm64: dts: renesas: rz-smarc: Replace fixed regulator for USB VBUS ...
2024-07-01mtd: rawnand: cadence: remove unused struct 'ecc_info'Dr. David Alan Gilbert
'ecc_info' has been unused since the original commit ec4ba01e894d ("mtd: rawnand: Add new Cadence NAND driver to MTD subsystem"). Remove it. Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20240525202529.120792-1-linux@treblig.org
2024-07-01mtd: rawnand: mxc: support software ECCSascha Hauer
With these changes the driver can be used with software BCH ECC which is useful for NAND chips that require a stronger ECC than the i.MX hardware supports. The controller normally interleaves user data with OOB data when accessing the NAND chip. With Software BCH ECC we write the data to the NAND in a way that the raw data on the NAND chip matches the way the NAND layer sees it. This way commands like NAND_CMD_RNDOUT work as expected. This was tested on i.MX27 but should work on the other SoCs supported by this driver as well. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20240522-mtd-nand-mxc-nand-exec-op-v4-3-75b611e0ac44@pengutronix.de
2024-07-01mtd: rawnand: mxc: implement exec_opSascha Hauer
This converts the driver to the more modern exec_op which gets us rid of a bunch of legacy code. Tested on i.MX27 and i.MX25. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20240522-mtd-nand-mxc-nand-exec-op-v4-2-75b611e0ac44@pengutronix.de
2024-07-01mtd: rawnand: mxc: separate page read from ecc calcSascha Hauer
Our read_page hook currently reads out a page and also counts and returns the number of bitflips. In upcoming exec_op conversion we'll need to read the page data in exec_op, but the bitflip information will be needed in mxc_nand_read_page(). To ease exec_op conversion separate the page read out from the bitflip evaluation. For the v2/v3 controllers we can leave the bitflip information in the status register for later evaluation. For the v1 controller this is not possible, because the status register is overwritten with each subpage read. We therefore store the bitflip information in the private data. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20240522-mtd-nand-mxc-nand-exec-op-v4-1-75b611e0ac44@pengutronix.de
2024-06-12memory: fsl_ifc: Make FSL_IFC config visible and selectableEsben Haabendal
While use of fsl_ifc driver with NAND flash is fine, as the fsl_ifc_nand driver selects FSL_IFC automatically, we need the CONFIG_FSL_IFC option to be selectable for platforms using fsl_ifc with NOR flash. Fixes: ea0c0ad6b6eb ("memory: Enable compile testing for most of the drivers") Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com> Signed-off-by: Esben Haabendal <esben@geanix.com> Link: https://lore.kernel.org/r/20240530-fsl-ifc-config-v3-1-1fd2c3d233dd@geanix.com Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
2024-05-27mtd: rawnand: meson: read/write access for boot ROM pagesArseniy Krasnov
Boot ROM on Meson needs some pages to be read/written in a special mode: 384 byte ECC mode (so called "short" by Amlogic) and with scrambling enabled. Such pages are located on the chip in the following way (for example): [ p0 ][ p1 ][ p2 ][ p3 ][ p4 ][ p5 ][ p6 ][ p7 ] ... [ pN ] ^ ^ ^ ^ pX is page number "X". "^" means "special" page used by boot ROM - e.g. every 2nd page in the range of [0, 7]. Step (2 here) and last page in range is read from the device tree. Signed-off-by: Arseniy Krasnov <avkrasnov@salutedevices.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20240507230903.3399594-4-avkrasnov@salutedevices.com
2024-05-27mtd: rawnand: meson: refactor use of 'meson_nfc_cmd_access()'Arseniy Krasnov
Move call 'meson_nfc_cmd_seed()' and check for 'NAND_NEED_SCRAMBLING' to 'meson_nfc_cmd_access()', thus removing code duplication. Signed-off-by: Arseniy Krasnov <avkrasnov@salutedevices.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20240507230903.3399594-3-avkrasnov@salutedevices.com
2024-05-27mtd: rawnand: rockchip: ensure NVDDR timings are rejectedVal Packett
.setup_interface first gets called with a "target" value of NAND_DATA_IFACE_CHECK_ONLY, in which case an error is expected if the controller driver does not support the timing mode (NVDDR). Fixes: a9ecc8c814e9 ("mtd: rawnand: Choose the best timings, NV-DDR included") Signed-off-by: Val Packett <val@packett.cool> Cc: stable@vger.kernel.org Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20240519031409.26464-1-val@packett.cool
2024-05-27mtd: rawnand: Bypass a couple of sanity checks during NAND identificationMiquel Raynal
Early during NAND identification, mtd_info fields have not yet been initialized (namely, writesize and oobsize) and thus cannot be used for sanity checks yet. Of course if there is a misuse of nand_change_read_column_op() so early we won't be warned, but there is anyway no actual check to perform at this stage as we do not yet know the NAND geometry. So, if the fields are empty, especially mtd->writesize which is *always* set quite rapidly after identification, let's skip the sanity checks. nand_change_read_column_op() is subject to be used early for ONFI/JEDEC identification in the very unlikely case of: - bitflips appearing in the parameter page, - the controller driver not supporting simple DATA_IN cycles. As nand_change_read_column_op() uses nand_fill_column_cycles() the logic explaind above also applies in this secondary helper. Fixes: c27842e7e11f ("mtd: rawnand: onfi: Adapt the parameter page read to constraint controllers") Fixes: daca31765e8b ("mtd: rawnand: jedec: Adapt the parameter page read to constraint controllers") Cc: stable@vger.kernel.org Reported-by: Alexander Dahl <ada@thorsis.com> Closes: https://lore.kernel.org/linux-mtd/20240306-shaky-bunion-d28b65ea97d7@thorsis.com/ Reported-by: Steven Seeger <steven.seeger@flightsystems.net> Closes: https://lore.kernel.org/linux-mtd/DM6PR05MB4506554457CF95191A670BDEF7062@DM6PR05MB4506.namprd05.prod.outlook.com/ Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Tested-by: Sascha Hauer <s.hauer@pengutronix.de> Link: https://lore.kernel.org/linux-mtd/20240516131320.579822-3-miquel.raynal@bootlin.com
2024-05-27mtd: rawnand: Fix the nand_read_data_op() early checkMiquel Raynal
The nand_read_data_op() operation, which only consists in DATA_IN cycles, is sadly not supported by all controllers despite being very basic. The core, for some time, supposed all drivers would support it. An improvement to this situation for supporting more constrained controller added a check to verify if the operation was supported before attempting it by running the function with the check_only boolean set first, and then possibly falling back to another (possibly slightly less optimized) alternative. An even newer addition moved that check very early and probe time, in order to perform the check only once. The content of the operation was not so important, as long as the controller driver would tell whether such operation on the NAND bus would be possible or not. In practice, no buffer was provided (no fake buffer or whatever) as it is anyway not relevant for the "check_only" condition. Unfortunately, early in the function, there is an if statement verifying that the input parameters are right for normal use, making the early check always unsuccessful. Fixes: 9f820fc0651c ("mtd: rawnand: Check the data only read pattern only once") Cc: stable@vger.kernel.org Reported-by: Alexander Dahl <ada@thorsis.com> Closes: https://lore.kernel.org/linux-mtd/20240306-shaky-bunion-d28b65ea97d7@thorsis.com/ Reported-by: Steven Seeger <steven.seeger@flightsystems.net> Closes: https://lore.kernel.org/linux-mtd/DM6PR05MB4506554457CF95191A670BDEF7062@DM6PR05MB4506.namprd05.prod.outlook.com/ Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Alexander Dahl <ada@thorsis.com> Link: https://lore.kernel.org/linux-mtd/20240516131320.579822-2-miquel.raynal@bootlin.com
2024-05-27mtd: rawnand: Ensure ECC configuration is propagated to upper layersMiquel Raynal
Until recently the "upper layer" was MTD. But following incremental reworks to bring spi-nand support and more recently generic ECC support, there is now an intermediate "generic NAND" layer that also needs to get access to some values. When using "converted" ECC engines, like the software ones, these values are already propagated correctly. But otherwise when using good old raw NAND controller drivers, we need to manually set these values ourselves at the end of the "scan" operation, once these values have been negotiated. Without this propagation, later (generic) checks like the one warning users that the ECC strength is not high enough might simply no longer work. Fixes: 8c126720fe10 ("mtd: rawnand: Use the ECC framework nand_ecc_is_strong_enough() helper") Cc: stable@vger.kernel.org Reported-by: Sascha Hauer <s.hauer@pengutronix.de> Closes: https://lore.kernel.org/all/Zhe2JtvvN1M4Ompw@pengutronix.de/ Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Tested-by: Sascha Hauer <s.hauer@pengutronix.de> Link: https://lore.kernel.org/linux-mtd/20240507085842.108844-1-miquel.raynal@bootlin.com