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2026-04-17Merge tag 'mtd/for-7.1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux Pull MTD updates from Miquel Raynal: "MTD changes: - mtdconcat finally makes it in, after several years of being merged and reverted - Baikal SoC support is being removed, so MTD bits are being removed as well - misc cleanups NAND changes: - SunXi driver support for new versions of the Allwinner NAND controller. - DT-binding improvements and cleanups. - A few fixes (Realtek ECC and Winbond SPI NAND), aside with the usual load of misc changes. SPI NOR fixes: - Enable die erase on MT35XU02GCBA. We knew this flash needed this fixup since 7f77c561e227 ("mtd: spi-nor: micron-st: add TODO for fixing mt35xu02gcba") but did not add it due to lack of hardware to test on. - Fix locking on some Winbond w25q series flashes. - Fix Auto Address Increment (AAI) writes on SST that flashes that start on odd address. The write enable latch needs to be set again after the single byte program" * tag 'mtd/for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (44 commits) mtd: spinand: winbond: Declare the QE bit on W25NxxJW mtd: spi-nor: micron-st: Enable die erase support for MT35XU02GCBA mtd: spi-nor: winbond: Fix locking support for w25q256jw mtd: spi-nor: sst: Fix write enable before AAI sequence mtd: spi-nor: winbond: Fix locking support for w25q64jvm mtd: spi-nor: winbond: Fix locking support for w25q256jwm dt-bindings: mtd: mxc-nand: add missing compatible string and ref to nand-controller-legacy.yaml dt-bindings: mtd: gpmi-nand: ref to nand-controller-legacy.yaml dt-bindings: mtd: refactor NAND bindings and add nand-controller-legacy.yaml mtd: spinand: winbond: Clarify when to enable the HS bit mtd: rawnand: sunxi: introduce maximize variable user data length mtd: rawnand: sunxi: fix typos in comments mtd: rawnand: sunxi: change error prone variable name mtd: rawnand: sunxi: remove dead code mtd: rawnand: sunxi: make the code more self-explanatory mtd: rawnand: sunxi: replace hard coded value by a define - take2 mtd: rawnand: sunxi: do not count BBM bytes twice mtd: rawnand: sunxi: fix sunxi_nfc_hw_ecc_read_extra_oob mtd: rawnand: sunxi: sunxi_nand_ooblayout_free code clarification mtd: cmdlinepart: use a flexible array member ...
2026-04-13MIPS/mtd: Handle READY GPIO in generic NAND platform dataLinus Walleij
The callbacks into the MIPS RB532 platform to read the GPIO pin indicating that the NAND chip is ready are oldschool and does not assign GPIOs as properties to the NAND device. Add a capability to the generic platform NAND chip driver to use a GPIO line to detect if a NAND chip is ready and override the platform-local drv_ready() callback with this check if the GPIO is present. This makes it possible to drop the legacy include header <linux/gpio.h> from the RB532 devices. Signed-off-by: Linus Walleij <linusw@kernel.org> Acked-by: Miquel Raynal <miquel.raynal@bootlin.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2026-03-25mtd: rawnand: sunxi: introduce maximize variable user data lengthRichard Genoud
In Allwinner SoCs, user data can be added in OOB before each ECC data. For older SoCs like A10, the user data size was the size of a register (4 bytes) and was mandatory before each ECC step. So, the A10 OOB Layout is: [4Bytes USER_DATA_STEP0] [ECC_STEP0 bytes] [4bytes USER_DATA_STEP1] [ECC_STEP1 bytes] ... NB: the BBM is stored at the beginning of the USER_DATA_STEP0. Now, for H6/H616 NAND flash controller, this user data can have a different size for each step. So, we are maximizing the user data length to use as many OOB bytes as possible. Fixes: 88fd4e4deae8 ("mtd: rawnand: sunxi: Add support for H616 nand controller") Signed-off-by: Richard Genoud <richard.genoud@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2026-03-25mtd: rawnand: sunxi: fix typos in commentsRichard Genoud
Fix lenghts -> lengths and chuncks -> chunks Signed-off-by: Richard Genoud <richard.genoud@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2026-03-25mtd: rawnand: sunxi: change error prone variable nameRichard Genoud
In sunxi_nand_hw_ecc_ctrl_init(), i is used as a loop index variable and at the same time as the value used to set ECC mode in ECC control register. To prevent it from being re-used as a loop variable, let's change the naming to ecc_mode. No functional change. Signed-off-by: Richard Genoud <richard.genoud@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2026-03-25mtd: rawnand: sunxi: remove dead codeRichard Genoud
sunxi_nand_ooblayout_free() is only used in a code path where engine_type == NAND_ECC_ENGINE_TYPE_ON_HOST So the other cases can be removed. Signed-off-by: Richard Genoud <richard.genoud@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2026-03-25mtd: rawnand: sunxi: make the code more self-explanatoryRichard Genoud
In sunxi_nfc_hw_ecc_{read,write}_chunk(), the ECC step was forced to 0, the reason is not trivial to get when reading the code. The explanation is that, from the NAND flash controller perspective, we are indeed at step 0 for user data length and ECC errors. Just add a const value with an explanation to clarify things. Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com> Signed-off-by: Richard Genoud <richard.genoud@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2026-03-25mtd: rawnand: sunxi: replace hard coded value by a define - take2Richard Genoud
The user data length (4) has been replaced almost all over the file, but 2 places were forgotten. The user data is placed before the ECC, for each step. So, in sunxi_nfc_hw_ecc_read_extra_oob(), the offset of the user data in OOB is indeed ((ecc->bytes + USER_DATA_SZ) * ecc->steps); And in sunxi_nand_ooblayout_ecc(), the offset of the ECC chunk in OOB is the same offset plus the current user data size: section * (ecc->bytes + USER_DATA_SZ) + USER_DATA_SZ; Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com> Signed-off-by: Richard Genoud <richard.genoud@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2026-03-25mtd: rawnand: sunxi: do not count BBM bytes twiceRichard Genoud
BBM is already part of USER_DATA section, so we should not remove it twice This was working ok because we are on the safe size, advertising that there was 2 bytes less available than in reality. But we can't change old platforms, since it may lead to a different ECC strength, so, introduce a legacy flag for old platforms, and switch the new platforms to the correct count. Signed-off-by: Richard Genoud <richard.genoud@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2026-03-25mtd: rawnand: sunxi: fix sunxi_nfc_hw_ecc_read_extra_oobRichard Genoud
When dumping the OOB, the bytes at the end where actually copied from the beginning of the OOB instead of current_offset. That leads to something like: OOB: ff ff ff ff ff ff ff ff ea 19 00 3a 83 db aa 8d OOB: 99 09 c8 9a 90 36 35 7d aa 15 13 07 3d 97 b2 a4 OOB: a8 bb 19 b3 07 e9 f6 25 52 d7 1a 23 e2 7e 0a e4 OOB: 52 8a 09 d2 1a 86 3d cf b4 99 43 13 d3 90 33 0b OOB: ff ff ff ff ff ff ff ff ea 19 00 3a 83 db aa 8d OOB: 99 09 c8 9a 90 36 35 7d aa 15 13 07 3d 97 b2 a4 OOB: a8 bb 19 b3 07 e9 f6 25 52 d7 1a 23 e2 7e 0a e4 OOB: 52 8a 09 d2 1a 86 3d cf b4 99 43 13 d3 90 33 0b instead of: OOB: ff ff ff ff ff ff ff ff ea 19 00 3a 83 db aa 8d OOB: 99 09 c8 9a 90 36 35 7d aa 15 13 07 3d 97 b2 a4 OOB: a8 bb 19 b3 07 e9 f6 25 52 d7 1a 23 e2 7e 0a e4 OOB: 52 8a 09 d2 1a 86 3d cf b4 99 43 13 d3 90 33 0b OOB: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff OOB: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff OOB: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff OOB: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff (example with BCH16, user data [8,0], no scrambling) *cur_off (offset from the beginning of the page) was compared to offset (offset from the beginning of the OOB), and then, the nand_change_read_column_op() sets the current position to the beginning of the OOB instead of OOB+offset Fixes: 15d6f118285f ("mtd: rawnand: sunxi: Stop supporting ECC_HW_SYNDROME mode") Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com> Signed-off-by: Richard Genoud <richard.genoud@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2026-03-25mtd: rawnand: sunxi: sunxi_nand_ooblayout_free code clarificationRichard Genoud
The available length is really USER_DATA_LEN - 2 instead of just 2 (the user data length minus the BBM length) USER_DATA_LEN being 4, that doesn't change anything now, but if USER_DATA_LEN changes, it will. Signed-off-by: Richard Genoud <richard.genoud@bootlin.com> Reviewed-by: Chen-Yu Tsai <wens@kernel.org> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2026-03-18mtd: rawnand: pl353: make sure optimal timings are appliedOlivier Sobrie
Timings of the nand are adjusted by pl35x_nfc_setup_interface() but actually applied by the pl35x_nand_select_target() function. If there is only one nand chip, the pl35x_nand_select_target() will only apply the timings once since the test at its beginning will always be true after the first call to this function. As a result, the hardware will keep using the default timings set at boot to detect the nand chip, not the optimal ones. With this patch, we program directly the new timings when pl35x_nfc_setup_interface() is called. Fixes: 08d8c62164a3 ("mtd: rawnand: pl353: Add support for the ARM PL353 SMC NAND controller") Signed-off-by: Olivier Sobrie <olivier@sobrie.be> Cc: stable@vger.kernel.org Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2026-03-11mtd: rawnand: ifc: set chip->of_node to nand@0 child node if presentFrank Li
The nand-controller.yaml binding requires a child node (e.g. nand@0) under the NAND controller. However, the driver currently assigns the controller's of_node directly to the NAND chip. Search for the first child node with the "nand" prefix and assign it to chip->of_node. This filters out properties such as "partition" that may be placed under the controller node in some older DTS files. Fall back to using the controller's of_node if no suitable child node is found to maintain backward compatibility. This issue went unnoticed because the default behavior works for most NAND chips. Signed-off-by: Frank Li <Frank.Li@nxp.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2026-03-11mtd: rawnand: mxc: set chip->of_node to nand@0 child node if presentFrank Li
The nand-controller.yaml binding requires a child node (e.g. nand@0) under the NAND controller. However, the driver currently assigns the controller's of_node directly to the NAND chip. Search for the first child node with the "nand" prefix and assign it to chip->of_node. This filters out properties such as "partition" that may be placed under the controller node in some older DTS files. Fall back to using the controller's of_node if no suitable child node is found to maintain backward compatibility. This issue went unnoticed because the default behavior works for most NAND chips. Signed-off-by: Frank Li <Frank.Li@nxp.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2026-03-11mtd: rawnand: gpmi: set chip->of_node to nand@0 child node if presentFrank Li
The nand-controller.yaml binding requires a child node (e.g. nand@0) under the NAND controller. However, the driver currently assigns the controller's of_node directly to the NAND chip. Search for the first child node with the "nand" prefix and assign it to chip->of_node. This filters out properties such as "partition" that may be placed under the controller node in some older DTS files. Fall back to using the controller's of_node if no suitable child node is found to maintain backward compatibility. This issue went unnoticed because the default behavior works for most NAND chips. Signed-off-by: Frank Li <Frank.Li@nxp.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2026-03-11mtd: nand: Use scoped_guard for mutex in nand_resumeRichard Lyu
Refactor nand_resume() to use scoped_guard() instead of explicit mutex_lock/unlock. This improves code safety by ensuring the mutex is always released through the RAII-based cleanup infrastructure. The behavior is functionally equivalent. The mutex is released at the end of the scoped block, after which wake_up_all() is called to preserve the original locking semantics. Signed-off-by: Richard Lyu <richard.lyu@suse.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2026-03-11mtd: rawnand: brcmnand: skip DMA during panic writeKamal Dasu
When oops_panic_write is set, the driver disables interrupts and switches to PIO polling mode but still falls through into the DMA path. DMA cannot be used reliably in panic context, so make the DMA path an else branch to ensure only PIO is used during panic writes. Fixes: c1ac2dc34b51 ("mtd: rawnand: brcmnand: When oops in progress use pio and interrupt polling") Signed-off-by: Kamal Dasu <kamal.dasu@broadcom.com> Reviewed-by: William Zhang <william.zhang@broadcom.com> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2026-03-11mtd: rawnand: serialize lock/unlock against other NAND operationsKamal Dasu
nand_lock() and nand_unlock() call into chip->ops.lock_area/unlock_area without holding the NAND device lock. On controllers that implement SET_FEATURES via multiple low-level PIO commands, these can race with concurrent UBI/UBIFS background erase/write operations that hold the device lock, resulting in cmd_pending conflicts on the NAND controller. Add nand_get_device()/nand_release_device() around the lock/unlock operations to serialize them against all other NAND controller access. Fixes: 92270086b7e5 ("mtd: rawnand: Add support for manufacturer specific lock/unlock operation") Signed-off-by: Kamal Dasu <kamal.dasu@broadcom.com> Reviewed-by: William Zhang <william.zhang@broadcom.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2026-02-25mtd: rawnand: cafe: Use generic power managementVaibhav Gupta
Switch from PCI power management to the generic power management framework so the pci_driver hooks can eventually be retired. Signed-off-by: Vaibhav Gupta <vaibhavgupta40@gmail.com> Reviewed-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2026-02-25mtd: rawnand: cadence: Fix error check for dma_alloc_coherent() in ↵Chen Ni
cadence_nand_init() Fix wrong variable used for error checking after dma_alloc_coherent() call. The function checks cdns_ctrl->dma_cdma_desc instead of cdns_ctrl->cdma_desc, which could lead to incorrect error handling. Fixes: ec4ba01e894d ("mtd: rawnand: Add new Cadence NAND driver to MTD subsystem") Cc: stable@vger.kernel.org Signed-off-by: Chen Ni <nichen@iscas.ac.cn> Reviewed-by: Alok Tiwari <alok.a.tiwari@oracle.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2026-02-22Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL usesKees Cook
Conversion performed via this Coccinelle script: // SPDX-License-Identifier: GPL-2.0-only // Options: --include-headers-for-types --all-includes --include-headers --keep-comments virtual patch @gfp depends on patch && !(file in "tools") && !(file in "samples")@ identifier ALLOC = {kmalloc_obj,kmalloc_objs,kmalloc_flex, kzalloc_obj,kzalloc_objs,kzalloc_flex, kvmalloc_obj,kvmalloc_objs,kvmalloc_flex, kvzalloc_obj,kvzalloc_objs,kvzalloc_flex}; @@ ALLOC(... - , GFP_KERNEL ) $ make coccicheck MODE=patch COCCI=gfp.cocci Build and boot tested x86_64 with Fedora 42's GCC and Clang: Linux version 6.19.0+ (user@host) (gcc (GCC) 15.2.1 20260123 (Red Hat 15.2.1-7), GNU ld version 2.44-12.fc42) #1 SMP PREEMPT_DYNAMIC 1970-01-01 Linux version 6.19.0+ (user@host) (clang version 20.1.8 (Fedora 20.1.8-4.fc42), LLD 20.1.8) #1 SMP PREEMPT_DYNAMIC 1970-01-01 Signed-off-by: Kees Cook <kees@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2026-02-21Convert 'alloc_obj' family to use the new default GFP_KERNEL argumentLinus Torvalds
This was done entirely with mindless brute force, using git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' | xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/' to convert the new alloc_obj() users that had a simple GFP_KERNEL argument to just drop that argument. Note that due to the extreme simplicity of the scripting, any slightly more complex cases spread over multiple lines would not be triggered: they definitely exist, but this covers the vast bulk of the cases, and the resulting diff is also then easier to check automatically. For the same reason the 'flex' versions will be done as a separate conversion. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2026-02-21treewide: Replace kmalloc with kmalloc_obj for non-scalar typesKees Cook
This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook <kees@kernel.org>
2026-02-05mtd: rawnand: pl353: Add message about ECC modeAndrea Scian
This just add some information on kernel log about the selected ECC Signed-off-by: Andrea Scian <andrea.scian@dave.eu> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2026-02-05mtd: rawnand: pl353: Fix software ECC supportAndrea Scian
We need to set also write_page_raw in ecc structure to allow choosing SW ECC instead of HW one, otherwise write operation fail. Fixes: 08d8c62164a322 ("mtd: rawnand: pl353: Add support for the ARM PL353 SMC NAND controller") Signed-off-by: Andrea Scian <andrea.scian@dave.eu> Cc: stable@kernel.org Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2026-01-29Merge tag 'tags/spi-octal-dtr' into nand/nextMiquel Raynal
spi: Octal DTR support This series adds support for 8D-8D-8D in SPI NAND, which can already be leveraged without any SPI changes as controllers already have this support for some SPI NOR devices. Among the few spi-mem patches, they are needed for building the SPI NAND changes (especially the ODTR introduction at the end) and therefore an immutable tag will be needed for merging in the MTD tree (unless all the series goes through MTD directly ofc).
2026-01-19mtd: rawnand: sunxi: Convert to common field_{get,prep}() helpersGeert Uytterhoeven
Drop the driver-specific field_get() and field_prep() macros, in favor of the globally available variants from <linux/bitfield.h>. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Miquel Raynal <miquel.raynal@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2026-01-19mtd: rawnand: atmel: Defer probe if SRAM is missingRob Herring (Arm)
The Atmel NAND controller driver depends on an SRAM pool and has an implicit assumption that the SRAM pool has already been created. Changing the initcall ordering can break this. Unfortunately, fw_devlink can't save us here as there's not a standard property to track the dependency. So it's up to deferring probe to save us. Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Tested-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2026-01-19mtd: rawnand: vf610: Simplify with scoped for each OF child loopKrzysztof Kozlowski
Use scoped for-each loop when iterating over device nodes to make code a bit simpler. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2026-01-19mtd: rawnand: vf610: Fix Wvoid-pointer-to-enum-cast warningKrzysztof Kozlowski
"nfc->variant" is an enum, thus cast of pointer on 64-bit compile test with clang W=1 causes: vf610_nfc.c:843:17: error: cast to smaller integer type 'enum vf610_nfc_variant' from 'const void *' [-Werror,-Wvoid-pointer-to-enum-cast] Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2026-01-19mtd: rawnand: qcom: Simplify with scoped for each OF child loopKrzysztof Kozlowski
Use scoped for-each loop when iterating over device nodes to make code a bit simpler. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com> Reviewed-by: Manivannan Sadhasivam <mani@kernel.org> Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2026-01-19mtd: rawnand: ingenic: Simplify with scoped for each OF child loopKrzysztof Kozlowski
Use scoped for-each loop when iterating over device nodes to make code a bit simpler. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com> Reviewed-by: Paul Cercueil <paul@crapouillou.net> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2026-01-19mtd: rawnand: denali: Simplify with scoped for each OF child loopKrzysztof Kozlowski
Use scoped for-each loop when iterating over device nodes to make code a bit simpler. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2026-01-19mtd: rawnand: brcm: Simplify with scoped for each OF child loopKrzysztof Kozlowski
Use scoped for-each loop when iterating over device nodes to make code a bit simpler. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2026-01-19mtd: rawnand: cadence: Fix return type of CDMA send-and-wait helperAlok Tiwari
cadence_nand_cdma_send_and_wait() propagates negative errno values from cadence_nand_cdma_send(), returns -ETIMEDOUT on failure and -EIO when the CDMA engine reports a command failure. However, it is declared as u32, causing error codes to wrap. Change the return type to int to correctly propagate errors. Fixes: ec4ba01e894d ("mtd: rawnand: Add new Cadence NAND driver to MTD subsystem") Signed-off-by: Alok Tiwari <alok.a.tiwari@oracle.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2026-01-11treewide: Update email addressThomas Gleixner
In a vain attempt to consolidate the email zoo switch everything to the kernel.org account. Signed-off-by: Thomas Gleixner <tglx@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2025-12-04Merge tag 'mtd/for-6.19' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux Pull mtd updates from Miquel Raynal: "Core MTD changes: - We must ignore error -ENOENT from parsers on subpartitions which is a legitimate return value - PM support is added to the intel-dg driver Raw NAND changes: - The major change in this is the support for the Allwinner H616 NAND controller, which lead to numerous changes and cleanups in the driver. - Another notable change in this driver is the use of field_get() and field_prep(), but since the global support for this helpers is going to be merged in the same release as we start using these helpers, we undefine them in the first place to avoid warnings. - Marvell drivers layout handling changes have also landed, they fix previous definitions and abuses that have been made previously, which implied to relax the ECC parameters validation in the core a bit. - The Cadence NAND controller driver gets NV-DDR interface support. SPI NAND changes: - Support for FudanMicro FM25S01BI3 and ESMT F50L1G41LC is added. SPI NOR changes: - Fix SMPT parsing for S25FS-S flash family. They report variable dummy cycles for reads. This results in the default of 0 being used. This works for other Infineon chips, but not for the S25FS-S family. They need 8 dummy cycles. Add fixup hooks to specify that. Also add fixup hooks to fix incorrect map ID data in SFDP. - Add support for a bunch of Winbond flashes. Their block protection information is not discoverable, so they need to have an entry in the flash tables to describe that. - Some cleanups for Micron flash support. - Add support for Micron mt35xu01gbba. - Some SPI controllers like the Intel one on the PCI bus do not support the read CR opcode (0x35). Do not use the opcode if the controller does not support it. Aside from these main changes, there is the usual load of API updates, kdoc fixes, potential memory leaks fixes, etc" * tag 'mtd/for-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (51 commits) mtd: sm_ftl: Fix typo in comment in sm_read_lba mtd: sm_ftl: Replace deprecated strncpy with sysfs_emit in sm_attr_show mtd: lpddr_cmds: fix signed shifts in lpddr_cmds mtd: docg3: fix kernel-doc warnings mtd: spinand: add support for FudanMicro FM25S01BI3 mtd: rawnand: renesas: Handle devm_pm_runtime_enable() errors mtd: nand: realtek-ecc: Fix Kconfig dependencies mtd: rawnand: sunxi: #undef field_{get,prep}() before local definition mailmap: update Pratyush Yadav's email address mtd: spi-nor: core: Check read CR support mtd: spi-nor: micron-st: add TODO for fixing mt35xu02gcba mtd: spi-nor: micron-st: add mt35xu01gbba support mtd: spi-nor: micron-st: use SFDP of mt35xu512aba mtd: spi-nor: micron-st: move set_octal_dtr to late_init() mtd: spi-nor: micron-st: rename the die_late_init functions mtd: spinand: esmt: add support for F50L1G41LC mtd: rawnand: lpc32xx_slc: Convert to use devm_gpiod_get_optional() mtd: mtdpart: ignore error -ENOENT from parsers on subpartitions mtd: maps: pcmciamtd: fix potential memory leak in pcmciamtd_detach() mtd: spi-nor: spansion: SMPT fixups for S25FS-S ...
2025-11-28mtd: rawnand: renesas: Handle devm_pm_runtime_enable() errorsHaotian Zhang
devm_pm_runtime_enable() can fail due to memory allocation failures. The current code ignores its return value and proceeds with pm_runtime_resume_and_get(), which may operate on incorrectly initialized runtime PM state. Check the return value of devm_pm_runtime_enable() and return the error code if it fails. Fixes: 6a2277a0ebe7 ("mtd: rawnand: renesas: Use runtime PM instead of the raw clock API") Signed-off-by: Haotian Zhang <vulab@iscas.ac.cn> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-11-27mtd: rawnand: sunxi: #undef field_{get,prep}() before local definitionGeert Uytterhoeven
Prepare for the advent of globally available common field_get() and field_prep() macros by undefining the symbols before defining local variants. This prevents redefinition warnings from the C preprocessor when introducing the common macros later. Suggested-by: Yury Norov <yury.norov@gmail.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2025-11-17mtd: rawnand: lpc32xx_slc: Convert to use devm_gpiod_get_optional()Haotian Zhang
The initial fix for a GPIO descriptor leak added manual gpiod_put() calls in the error path and remove function. This follow-up patch improves upon the fix by switching to the resource-managed devm_gpiod_get_optional() API. Suggested-by: Vladimir Zapolskiy <vz@mleia.com> Signed-off-by: Haotian Zhang <vulab@iscas.ac.cn> Reviewed-by: Vladimir Zapolskiy <vz@mleia.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-10-28mtd: rawnand: sunxi: Add support for H616 nand controllerRichard Genoud
The H616 nand controller has the same base as A10/A23, with some differences: - mdma is based on chained buffers - its ECC supports up to 80bit per 1024bytes - some registers layouts are a bit different, mainly due do the stronger ECC. - it uses USER_DATA_LEN registers along USER_DATA registers. - it needs a specific clock for ECC and MBUS. Introduce the basic support, with ECC and scrambling, but without DMA/MDMA. Tested on Whatsminer H616 board (with and without scrambling, ECC) Signed-off-by: Richard Genoud <richard.genoud@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-10-28mtd: rawnand: sunxi: introduce sram_size in sunxi_nfc_capsRichard Genoud
The H6/H616 the SRAM is bigger than the A10/A23 one, so move its size into sunxi_nfc_caps. No functional change Signed-off-by: Richard Genoud <richard.genoud@bootlin.com> Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-10-28mtd: rawnand: sunxi: introduce ecc_err_mask in sunxi_nfc_capsRichard Genoud
The H6/H616 error mask register is bigger than the A10/A23 one, so move its mask into sunxi_nfc_caps. No functional change Signed-off-by: Richard Genoud <richard.genoud@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-10-28mtd: rawnand: sunxi: introduce reg_spare_area in sunxi_nfc_capsRichard Genoud
The H6/H616 spare area register is not at the same offset as the A10/A23 one, so move its offset into sunxi_nfc_caps. No functional change. Signed-off-by: Richard Genoud <richard.genoud@bootlin.com> Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-10-28mtd: rawnand: sunxi: introduce reg_pat_id in sunxi_nfc_capsRichard Genoud
The H6/H616 pattern ID register is not at the same offset as the A10/A23 one, so move its offset into sunxi_nfc_caps. No functional change. Signed-off-by: Richard Genoud <richard.genoud@bootlin.com> Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-10-28mtd: rawnand: sunxi: introduce random en/dir in sunxi_nfc_capsRichard Genoud
The H6/H616 RANDOM EN/DIRECTION masks are different from A10/A23. So move the masks into sunxi_nfc_caps. No functional change. Signed-off-by: Richard Genoud <richard.genoud@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-10-28mtd: rawnand: sunxi: introduce ecc_mode_mask in sunxi_nfc_capsRichard Genoud
The H6/H616 ECC_MODE field is not at the same offset, and has not the same size. So move the mask into sunxi_nfc_caps. Also, introduce a non compile-time field_prep() because FIELD_PREP() doesn't work with non compile-time constant. No functional change. Link: https://lore.kernel.org/all/cover.1761588465.git.geert+renesas@glider.be Signed-off-by: Richard Genoud <richard.genoud@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-10-28mtd: rawnand: sunxi: add has_ecc_block_512 capabilityRichard Genoud
The H616 controller can't handle 512 bytes ECC block size. The NFC_ECC_BLOCK_512 bit disappeared in H6, and NDFC_RANDOM_EN took its place. So, add has_ecc_block_512 capability to only set this bit on SoC having it. No functional change. Signed-off-by: Richard Genoud <richard.genoud@bootlin.com> Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-10-28mtd: rawnand: sunxi: rework pattern found registersRichard Genoud
On H6/H616, the register ECC_PAT_FOUND is at its own address, and not part of ECC status register. So, introduce the pattern found register offset in sunxi_nfc_caps, along with its mask. Also, introduce a non compile-time field_get() because FIELD_GET() and u32_get_bits() don't work with non compile-time constant. No functional change. Link: https://lore.kernel.org/all/cover.1761588465.git.geert+renesas@glider.be Signed-off-by: Richard Genoud <richard.genoud@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-10-28mtd: rawnand: sunxi: introduce reg_user_data in sunxi_nfc_capsRichard Genoud
The H6/H616 USER_DATA register is not at the same offset as the A10/A23 one, so move its offset into sunxi_nfc_caps No functional change. Signed-off-by: Richard Genoud <richard.genoud@bootlin.com> Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>