kernel/linux.git/drivers/nvmem, branch linux-6.0.y

nvmem: rmem: Fix return value check in rmem_read()

2022-12-08T10:30:15+00:00

[ Upstream commit 58e92c4a496b27156020a59a98c7f4a92c2b1533 ] In case of error, the function memremap() returns NULL pointer not ERR_PTR(). The IS_ERR() test in the return value check should be replaced with NULL test. Fixes: 5a3fa75a4d9c ("nvmem: Add driver to expose reserved memory as nvmem") Cc: Srinivas Kandagatla Cc: Nicolas Saenz Julienne Signed-off-by: Wei Yongjun Acked-by: Nicolas Saenz Julienne Signed-off-by: Yang Yingliang Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20221118063840.6357-3-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin

nvmem: core: Fix memleak in nvmem_register()

2022-10-21T10:37:40+00:00

commit bd1244561fa2a4531ded40dbf09c9599084f8b29 upstream. dev_set_name will alloc memory for nvmem->dev.kobj.name in nvmem_register, when nvmem_validate_keepouts failed, nvmem's memory will be freed and return, but nobody will free memory for nvmem->dev.kobj.name, there will be memleak, so moving nvmem_validate_keepouts() after device_register() and let the device core deal with cleaning name in error cases. Fixes: de0534df9347 ("nvmem: core: fix error handling while validating keepout regions") Cc: stable@vger.kernel.org Signed-off-by: Gaosheng Cui Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20220916120402.38753-1-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman Signed-off-by: Greg Kroah-Hartman

Merge tag 'spdx-6.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx

2022-08-04T19:12:54+00:00

Pull SPDX updates from Greg KH: "Here is the set of SPDX comment updates for 6.0-rc1. Nothing huge here, just a number of updated SPDX license tags and cleanups based on the review of a number of common patterns in GPLv2 boilerplate text. Also included in here are a few other minor updates, two USB files, and one Documentation file update to get the SPDX lines correct. All of these have been in the linux-next tree for a very long time" * tag 'spdx-6.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx: (28 commits) Documentation: samsung-s3c24xx: Add blank line after SPDX directive x86/crypto: Remove stray comment terminator treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_406.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_398.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_391.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_390.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_385.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_320.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_319.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_318.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_298.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_292.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_179.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_168.RULE (part 2) treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_168.RULE (part 1) treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_160.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_152.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_149.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_147.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_133.RULE ...

nvmem: mtk-efuse: Simplify with devm_platform_get_and_ioremap_resource()

2022-07-08T13:45:05+00:00

Convert platform_get_resource(), devm_ioremap_resource() to a single call to devm_platform_get_and_ioremap_resource(), as this is exactly what this function does. No functional changes. Signed-off-by: AngeloGioacchino Del Regno Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20220706100627.6534-8-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman

nvmem: microchip-otpc: add support

2022-07-08T13:45:05+00:00

Add support for Microchip OTP controller available on SAMA7G5. The OTPC controls the access to a non-volatile memory. The memory behind OTPC is organized into packets, packets are composed by a fixed length header (4 bytes long) and a variable length payload (payload length is available in the header). When software request the data at an offset in memory the OTPC will return (via header + data registers) the whole packet that has a word at that offset. For the OTP memory layout like below: offset OTP Memory layout . . . ... . . . 0x0E +-----------+ <--- packet X | header X | 0x12 +-----------+ | payload X | 0x16 | | | | 0x1A | | +-----------+ . . . ... . . . if user requests data at address 0x16 the data started at 0x0E will be returned by controller. User will be able to fetch the whole packet starting at 0x0E (or parts of the packet) via proper registers. The same packet will be returned if software request the data at offset 0x0E or 0x12 or 0x1A. The OTP will be populated by Microchip with at least 2 packets first one being boot configuration packet and the 2nd one being temperature calibration packet. The packet order will be preserved b/w different chip revisions but the packet sizes may change. For the above reasons and to keep the same software able to work on all chip variants the read function of the driver is working with a packet id instead of an offset in OTP memory. Signed-off-by: Claudiu Beznea Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20220706100627.6534-3-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman

treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_30.RULE (part 2)

2022-06-10T12:51:35+00:00

Based on the normalized pattern: this program is free software you can redistribute it and/or modify it under the terms of the gnu general public license as published by the free software foundation version 2 this program is distributed as is without any warranty of any kind whether express or implied without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference. Reviewed-by: Allison Randal Signed-off-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman

nvmem: sfp: Add support for TA 2.1 devices

2022-05-09T13:46:29+00:00

This adds support for Trust Architecture (TA) 2.1 devices to the SFP driver. There are few differences between TA 2.1 and TA 3.0, especially for read-only support, so just re-use the existing data. Signed-off-by: Sean Anderson Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20220429162701.2222-17-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman

nvmem: sfp: Use regmap

2022-05-09T13:46:29+00:00

This converts the SFP driver to use regmap. This will allow easily supporting devices with different endians. We disallow byte-level access, as regmap_bulk_read doesn't support it (and it's unclear what the correct result would be when we have an endianness difference). Signed-off-by: Sean Anderson Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20220429162701.2222-16-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman

nvmem: qfprom: using pm_runtime_resume_and_get instead of pm_runtime_get_sync

2022-05-09T13:45:39+00:00

Using pm_runtime_resume_and_get is more appropriate for simplifing code Reported-by: Zeal Robot Signed-off-by: Minghao Chi Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20220429162701.2222-10-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman

nvmem: Add Apple eFuse driver

2022-05-09T13:44:21+00:00

Apple SoCs contain eFuses used to store factory-programmed data such as calibration values for the PCIe or the Type-C PHY. They are organized as 32bit values exposed as MMIO. Signed-off-by: Sven Peter Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20220429162701.2222-6-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman