kernel.git/drivers/mtd/nand/raw, branch linux-5.8.y

mtd: rawnand: ams-delta: Fix non-OF build warning

2020-10-29T09:08:00Z

[ Upstream commit 6d11178762f7c8338a028b428198383b8978b280 ] Commit 7c2f66a960fc ("mtd: rawnand: ams-delta: Add module device tables") introduced an OF module device table but wrapped a reference to it with of_match_ptr() which resolves to NULL in non-OF configs. That resulted in a clang compiler warning on unused variable in non-OF builds. Fix it. drivers/mtd/nand/raw/ams-delta.c:373:34: warning: unused variable 'gpio_nand_of_id_table' [-Wunused-const-variable] static const struct of_device_id gpio_nand_of_id_table[] = { ^ 1 warning generated. Fixes: 7c2f66a960fc ("mtd: rawnand: ams-delta: Add module device tables") Reported-by: kernel test robot Signed-off-by: Janusz Krzysztofik Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/20200919080403.17520-1-jmkrzyszt@gmail.com Signed-off-by: Sasha Levin

mtd: rawnand: vf610: disable clk on error handling path in probe

2020-10-29T09:07:59Z

[ Upstream commit cb7dc3178a9862614b1e7567d77f4679f027a074 ] vf610_nfc_probe() does not invoke clk_disable_unprepare() on one error handling path. The patch fixes that. Found by Linux Driver Verification project (linuxtesting.org). Fixes: 6f0ce4dfc5a3 ("mtd: rawnand: vf610: Avoid a potential NULL pointer dereference") Signed-off-by: Evgeny Novikov Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/20200806072634.23528-1-novikov@ispras.ru Signed-off-by: Sasha Levin

mtd: rawnand: stm32_fmc2: fix a buffer overflow

2020-10-29T09:07:59Z

[ Upstream commit ab16f54ef3cdb6bbc06a36f636a89e6db8a6cea3 ] This patch solves following static checker warning: drivers/mtd/nand/raw/stm32_fmc2_nand.c:350 stm32_fmc2_nfc_select_chip() error: buffer overflow 'nfc->data_phys_addr' 2 <= 2 The CS value can only be 0 or 1. Signed-off-by: Christophe Kerello Fixes: 2cd457f328c1 ("mtd: rawnand: stm32_fmc2: add STM32 FMC2 NAND flash controller driver") Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/1595325127-32693-1-git-send-email-christophe.kerello@st.com Signed-off-by: Sasha Levin

mtd: rawnand: brcmnand: ECC error handling on EDU transfers

2020-08-21T11:15:04Z

[ Upstream commit 4551e78ad98add1f16b70cf286d5aad3ce7bcd4c ] Implement ECC correctable and uncorrectable error handling for EDU reads. If ECC correctable bitflips are encountered on EDU transfer, read page again using PIO. This is needed due to a NAND controller limitation where corrected data is not transferred to the DMA buffer on ECC error. This applies to ECC correctable errors that are reported by the controller hardware based on set number of bitflips threshold in the controller threshold register, bitflips below the threshold are corrected silently and are not reported by the controller hardware. Fixes: a5d53ad26a8b ("mtd: rawnand: brcmnand: Add support for flash-edu for dma transfers") Signed-off-by: Kamal Dasu Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/20200612212902.21347-3-kdasu.kdev@gmail.com Signed-off-by: Sasha Levin

mtd: rawnand: fsl_upm: Remove unused mtd var

2020-08-21T11:15:04Z

[ Upstream commit ccc49eff77bee2885447a032948959a134029fe3 ] The mtd var in fun_wait_rnb() is now unused, let's get rid of it and fix the warning resulting from this unused var. Fixes: 50a487e7719c ("mtd: rawnand: Pass a nand_chip object to chip->dev_ready()") Signed-off-by: Boris Brezillon Reviewed-by: Miquel Raynal Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/20200603134922.1352340-2-boris.brezillon@collabora.com Signed-off-by: Sasha Levin

mtd: rawnand: qcom: avoid write to unavailable register

2020-08-19T06:27:06Z

commit 443440cc4a901af462239d286cd10721aa1c7dfc upstream. SFLASHC_BURST_CFG is only available on older ipq NAND platforms, this register has been removed when the NAND controller got implemented in the qpic controller. Avoid writing this register on devices which are based on qpic NAND controller. Fixes: dce84760b09f ("mtd: nand: qcom: Support for IPQ8074 QPIC NAND controller") Cc: stable@vger.kernel.org Signed-off-by: Sivaprakash Murugesan Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/1591948696-16015-2-git-send-email-sivaprak@codeaurora.org Signed-off-by: Greg Kroah-Hartman

mtd: rawnand: brcmnand: Don't default to edu transfer

2020-08-19T06:26:57Z

[ Upstream commit bee3ab8bdd3b13faf08e5b6e0218f59b0a49fcc3 ] When flash-dma is absent do not default to using flash-edu. Make sure flash-edu is enabled before setting EDU transfer function. Fixes: a5d53ad26a8b ("mtd: rawnand: brcmnand: Add support for flash-edu for dma transfers") Signed-off-by: Kamal Dasu Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/20200612212902.21347-2-kdasu.kdev@gmail.com Signed-off-by: Sasha Levin

mtd: rawnand: xway: Fix build issue

2020-07-07T19:04:38Z

This MIPS driver does not support COMPILE_TEST yet and failed to build under my radar. Replace 'mtd' chich is not defined in the scope of xway_nand_remove() by nand_to_mtd(chip). The mistake has been added in the long series dropping nand_release(). Tested with a 7.3.0 MIPS GCC toolchain built with Buildroot. Fixes: 9fdd78f7bcda ("mtd: rawnand: xway: Stop using nand_release()") Reported-by: kernel test robot Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/20200626065511.16424-1-miquel.raynal@bootlin.com

nandsim: Fix return code testing of ns_find_operation()

2020-06-15T17:39:22Z

ns_find_operation() returns 0 on success. Fixes: 052a7a5374bc ("mtd: rawnand: nandsim: Clean error handling") Signed-off-by: Richard Weinberger Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/20200615113404.25447-1-richard@nod.at

Merge tag 'nand/for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux into mtd/next

2020-06-01T17:50:58Z

Raw NAND core changes: * Stop using nand_release(), patched all drivers. * Give more information about the ECC weakness when not matching the chip's requirement. * MAINTAINERS updates. * Support emulated SLC mode on MLC NANDs. * Support "constrained" controllers, adapt the core and ONFI/JEDEC table parsing and Micron's code. * Take check_only into account. * Add an invalid ECC mode to discriminate with valid ones. * Return an enum from of_get_nand_ecc_algo(). * Drop OOB_FIRST placement scheme. * Introduce nand_extract_bits(). * Ensure a consistent bitflips numbering. * BCH lib: - Allow easy bit swapping. - Rework a little bit the exported function names. * Fix nand_gpio_waitrdy(). * Propage CS selection to sub operations. * Add a NAND_NO_BBM_QUIRK flag. * Give the possibility to verify a read operation is supported. * Add a helper to check supported operations. * Avoid indirect access to ->data_buf(). * Rename the use_bufpoi variables. * Fix comments about the use of bufpoi. * Rename a NAND chip option. * Reorder the nand_chip->options flags. * Translate obscure bitfields into readable macros. * Timings: - Fix default values. - Add mode information to the timings structure. Raw NAND controller driver changes: * Fixed many error paths. * Arasan - New driver * Au1550nd: - Various cleanups - Migration to ->exec_op() * brcmnand: - Misc cleanup. - Support v2.1-v2.2 controllers. - Remove unused including . - Correctly verify erased pages. - Fix Hamming OOB layout. * Cadence - Make cadence_nand_attach_chip static. * Cafe: - Set the NAND_NO_BBM_QUIRK flag * cmx270: - Remove this controller driver. * cs553x: - Misc cleanup - Migration to ->exec_op() * Davinci: - Misc cleanup. - Migration to ->exec_op() * Denali: - Add more delays before latching incoming data * Diskonchip: - Misc cleanup - Migration to ->exec_op() * Fsmc: - Change to non-atomic bit operations. * GPMI: - Use nand_extract_bits() - Fix runtime PM imbalance. * Ingenic: - Migration to exec_op() - Fix the RB gpio active-high property on qi, lb60 - Make qi_lb60_ooblayout_ops static. * Marvell: - Misc cleanup and small fixes * Nandsim: - Fix the error paths, driver wide. * Omap_elm: - Fix runtime PM imbalance. * STM32_FMC2: - Misc cleanups (error cases, comments, timeout valus, cosmetic changes).