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* Merge tag 'driver-core-5.3-rc1' of ↵Linus Torvalds2019-07-121-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core and debugfs updates from Greg KH: "Here is the "big" driver core and debugfs changes for 5.3-rc1 It's a lot of different patches, all across the tree due to some api changes and lots of debugfs cleanups. Other than the debugfs cleanups, in this set of changes we have: - bus iteration function cleanups - scripts/get_abi.pl tool to display and parse Documentation/ABI entries in a simple way - cleanups to Documenatation/ABI/ entries to make them parse easier due to typos and other minor things - default_attrs use for some ktype users - driver model documentation file conversions to .rst - compressed firmware file loading - deferred probe fixes All of these have been in linux-next for a while, with a bunch of merge issues that Stephen has been patient with me for" * tag 'driver-core-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (102 commits) debugfs: make error message a bit more verbose orangefs: fix build warning from debugfs cleanup patch ubifs: fix build warning after debugfs cleanup patch driver: core: Allow subsystems to continue deferring probe drivers: base: cacheinfo: Ensure cpu hotplug work is done before Intel RDT arch_topology: Remove error messages on out-of-memory conditions lib: notifier-error-inject: no need to check return value of debugfs_create functions swiotlb: no need to check return value of debugfs_create functions ceph: no need to check return value of debugfs_create functions sunrpc: no need to check return value of debugfs_create functions ubifs: no need to check return value of debugfs_create functions orangefs: no need to check return value of debugfs_create functions nfsd: no need to check return value of debugfs_create functions lib: 842: no need to check return value of debugfs_create functions debugfs: provide pr_fmt() macro debugfs: log errors when something goes wrong drivers: s390/cio: Fix compilation warning about const qualifiers drivers: Add generic helper to match by of_node driver_find_device: Unify the match function with class_find_device() bus_find_device: Unify the match callback with class_find_device ...
| * bus_find_device: Unify the match callback with class_find_deviceSuzuki K Poulose2019-06-241-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is an arbitrary difference between the prototypes of bus_find_device() and class_find_device() preventing their callers from passing the same pair of data and match() arguments to both of them, which is the const qualifier used in the prototype of class_find_device(). If that qualifier is also used in the bus_find_device() prototype, it will be possible to pass the same match() callback function to both bus_find_device() and class_find_device(), which will allow some optimizations to be made in order to avoid code duplication going forward. Also with that, constify the "data" parameter as it is passed as a const to the match function. For this reason, change the prototype of bus_find_device() to match the prototype of class_find_device() and adjust its callers to use the const qualifier in accordance with the new prototype of it. Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Andreas Noever <andreas.noever@gmail.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Corey Minyard <minyard@acm.org> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: David Kershner <david.kershner@unisys.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: David Airlie <airlied@linux.ie> Cc: Felipe Balbi <balbi@kernel.org> Cc: Frank Rowand <frowand.list@gmail.com> Cc: Grygorii Strashko <grygorii.strashko@ti.com> Cc: Harald Freudenberger <freude@linux.ibm.com> Cc: Hartmut Knaack <knaack.h@gmx.de> Cc: Heiko Stuebner <heiko@sntech.de> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: Jonathan Cameron <jic23@kernel.org> Cc: "James E.J. Bottomley" <jejb@linux.ibm.com> Cc: Len Brown <lenb@kernel.org> Cc: Mark Brown <broonie@kernel.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michael Jamet <michael.jamet@intel.com> Cc: "Martin K. Petersen" <martin.petersen@oracle.com> Cc: Peter Oberparleiter <oberpar@linux.ibm.com> Cc: Sebastian Ott <sebott@linux.ibm.com> Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Cc: Yehezkel Bernat <YehezkelShB@gmail.com> Cc: rafael@kernel.org Acked-by: Corey Minyard <minyard@acm.org> Acked-by: David Kershner <david.kershner@unisys.com> Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Acked-by: Wolfram Sang <wsa@the-dreams.de> # for the I2C parts Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | nvmem: imx-ocotp: imx8mq is compatible with imx6 not imx7Leonard Crestez2019-06-261-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | According to NXP Reference Manuals and uboot/atf sources the OCOTP block on imx8m behaves more like imx6 than imx7. - Fuses can be read/written 32bits at a time (no imx7-like banking) - The OCOTP_HW_OCOTP_TIMING register is like imx6 not imx7 Since nvmem doesn't support uboot-style "sense" and "override" this issue only affected "write" which is very rarely used. Fixes: 163c0dbd0cb1 ("nvmem: imx-ocotp: add support for imx8mq") Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Reviewed-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | nvmem: imx-ocotp: Add i.MX8MM supportBryan O'Donoghue2019-06-261-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support to burn the fuses on the i.MX8MM. https://www.nxp.com/webapp/Download?colCode=IMX8MMRM The i.MX8MM is similar to i.MX6 processors in terms of addressing and clock setup. The documentation specifies 60 discreet OTP registers but, the fusemap address space encompasses up to 256 registers. We map the entire putative 256 OTP registers. Signed-off-by: Bryan O'Donoghue <pure.logic@nexus-software.ie> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | nvmem: imx-ocotp: Change TIMING calculation to u-boot algorithmBryan O'Donoghue2019-06-261-4/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The RELAX field of the OCOTP block is turning out as a zero on i.MX8MM. This messes up the subsequent re-load of the fuse shadow registers. After some discussion with people @ NXP its clear we have missed a trick here in Linux. The OCOTP fuse programming time has a physical minimum 'burn time' that is not related to the ipg_clk. We need to define the RELAX, STROBE_READ and STROBE_PROG fields in terms of desired timings to allow for the burn-in to safely complete. Right now only the RELAX field is calculated in terms of an absolute time and we are ending up with a value of zero. This patch inherits the u-boot timings for the OCOTP_TIMING calculation on the i.MX6 and i.MX8. Those timings are known to work and critically specify values such as STROBE_PROG as a minimum timing. Fixes: 0642bac7da42 ("nvmem: imx-ocotp: add write support") Signed-off-by: Bryan O'Donoghue <pure.logic@nexus-software.ie> Suggested-by: Leonard Crestez <leonard.crestez@nxp.com> Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | nvmem: imx-ocotp: Ensure WAIT bits are preserved when setting timingBryan O'Donoghue2019-06-261-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The i.MX6 and i.MX8 both have a bit-field spanning bits 27:22 called the WAIT field. The WAIT field according to the documentation for both parts "specifies time interval between auto read and write access in one time program. It is given in number of ipg_clk periods." This patch ensures that the relevant field is read and written back to the timing register. Fixes: 0642bac7da42 ("nvmem: imx-ocotp: add write support") Signed-off-by: Bryan O'Donoghue <pure.logic@nexus-software.ie> Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | nvmem: imx-ocotp: Elongate OCOTP_CTRL ADDR field to eight bitsBryan O'Donoghue2019-06-261-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | i.MX6 defines OCOTP_CTRLn:ADDR as seven bit address-field with a one bit RSVD0 field, i.MX7 defines OCOTP_CTRLn:ADDR as a four bit address-field with a four bit RSVD0 field. i.MX8 defines the OCOTP_CTRLn:ADDR bit-field as a full range eight bits. i.MX6 and i.MX7 should return zero for their respective RSVD0 bits and ignore a write-back of zero where i.MX8 will make use of the full range. This patch expands the bit-field definition for all users to eight bits, which is safe due to RSVD0 being a no-op for the i.MX6 and i.MX7. Signed-off-by: Bryan O'Donoghue <pure.logic@nexus-software.ie> Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | Merge 5.2-rc6 into char-misc-nextGreg Kroah-Hartman2019-06-235-26/+5
|\ \ | | | | | | | | | | | | | | | We need the char-misc fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500Thomas Gleixner2019-06-193-12/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 460Thomas Gleixner2019-06-192-14/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation http www opensource org licenses gpl license html http www gnu org copyleft gpl html extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 3 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081201.897982733@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | | nvmem: Broaden the selection of NVMEM_SNVS_LPGPRFabio Estevam2019-06-191-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The SNVS LPGR IP block is also found on other i.MX SoCs that are not covered by the current SOC_IMX6 || SOC_IMX7D logic. One example is the i.MX7ULP. To avoid keep expanding the SoC logic selection, make it broader by using the more generic ARCH_MXC symbol instead. Signed-off-by: Fabio Estevam <festevam@gmail.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | | nvmem: imx: add i.MX8 nvmem driverPeng Fan2019-06-193-0/+170
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds i.MX8 nvmem ocotp driver to access fuse via RPC to i.MX8 system controller. Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Pengutronix Kernel Team <kernel@pengutronix.de> Cc: Fabio Estevam <festevam@gmail.com> Cc: NXP Linux Team <linux-imx@nxp.com> Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295Thomas Gleixner2019-06-053-27/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of version 2 of the gnu general public license as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty 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 in 64 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141901.894819585@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284Thomas Gleixner2019-06-052-18/+2
|/ | | | | | | | | | | | | | | | | | | | | | | | | Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 and only version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty 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 in 294 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141900.825281744@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174Thomas Gleixner2019-05-302-18/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty 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 in 655 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070034.575739538@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157Thomas Gleixner2019-05-301-11/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Based on 3 normalized pattern(s): 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 either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details 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 either version 2 of the license or at your option any later version [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details 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 either version 2 of the license or at your option any later version [author] [graeme] [gregory] [gg]@[slimlogic] [co] [uk] [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] [based] [on] [twl6030]_[usb] [c] [author] [hema] [hk] [hemahk]@[ti] [com] this program is distributed in the hope that it will be useful but without any warranty 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-or-later has been chosen to replace the boilerplate/reference in 1105 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.202006027@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* treewide: Add SPDX license identifier - Makefile/KconfigThomas Gleixner2019-05-211-0/+1
| | | | | | | | | | | | | | Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge tag 'armsoc-drivers' of ↵Linus Torvalds2019-05-161-3/+7
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull ARM SoC-related driver updates from Olof Johansson: "Various driver updates for platforms and a couple of the small driver subsystems we merge through our tree: Among the larger pieces: - Power management improvements for TI am335x and am437x (RTC suspend/wake) - Misc new additions for Amlogic (socinfo updates) - ZynqMP FPGA manager - Nvidia improvements for reset/powergate handling - PMIC wrapper for Mediatek MT8516 - Misc fixes/improvements for ARM SCMI, TEE, NXP i.MX SCU drivers" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (57 commits) soc: aspeed: fix Kconfig soc: add aspeed folder and misc drivers spi: zynqmp: Fix build break soc: imx: Add generic i.MX8 SoC driver MAINTAINERS: Update email for Qualcomm SoC maintainer memory: tegra: Fix a typos for "fdcdwr2" mc client Revert "ARM: tegra: Restore memory arbitration on resume from LP1 on Tegra30+" memory: tegra: Replace readl-writel with mc_readl-mc_writel memory: tegra: Fix integer overflow on tick value calculation memory: tegra: Fix missed registers values latching ARM: tegra: cpuidle: Handle tick broadcasting within cpuidle core on Tegra20/30 optee: allow to work without static shared memory soc/tegra: pmc: Move powergate initialisation to probe soc/tegra: pmc: Remove reset sysfs entries on error soc/tegra: pmc: Fix reset sources and levels soc: amlogic: meson-gx-pwrc-vpu: Add support for G12A soc: amlogic: meson-gx-pwrc-vpu: Fix power on/off register bitmask fpga manager: Adding FPGA Manager support for Xilinx zynqmp dt-bindings: fpga: Add bindings for ZynqMP fpga driver firmware: xilinx: Add fpga API's ...
| * drivers: Defer probe if firmware is not readyRajan Vaja2019-03-181-3/+7
| | | | | | | | | | | | | | | | | | | | Driver needs ZynqMP firmware interface to call EEMI APIs. In case firmware is not ready, dependent drivers should wait until the firmware is ready. Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com> Signed-off-by: Jolly Shah <jollys@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* | nvmem: core: add NVMEM_SYSFS KconfigSrinivas Kandagatla2019-04-255-260/+335
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Many nvmem providers are not very keen on having default sysfs nvmem entry, as most of the usecases for them are inside kernel itself. And in some cases read/writes to some areas in nvmem are restricted and trapped at secure monitor level, so accessing them from userspace would result in board reboots. This patch adds new NVMEM_SYSFS Kconfig to make binary sysfs entry an optional one. This provision will give more flexibility to users. This patch also moves existing sysfs code to a new file so that its not compiled in when its not really required. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by: Gaurav Kohli <gkohli@codeaurora.org> Tested-by: Gaurav Kohli <gkohli@codeaurora.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | nvmem: sunxi_sid: Support SID on H6Yangtao Li2019-04-251-0/+6
| | | | | | | | | | | | | | | | | | | | Add support for H6's SID controller. It supports 4K-bit EFUSE, bigger than before. Signed-off-by: Yangtao Li <tiny.windzz@gmail.com> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | nvmem: sunxi-sid: convert to SPDX license tagsYangtao Li2019-04-251-10/+1
| | | | | | | | | | | | | | | | | | Updates license to use SPDX-License-Identifier. Acked-by: Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by: Yangtao Li <tiny.windzz@gmail.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | nvmem: imx-iim: use devm_platform_ioremap_resource() to simplify codeAnson Huang2019-04-251-3/+1
| | | | | | | | | | | | | | | | | | | | | | Use the new helper devm_platform_ioremap_resource() which wraps the platform_get_resource() and devm_ioremap_resource() together, to simplify the code. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Reviewed-by: Mukesh Ojha <mojha@codeaurora.org> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | nvmem: mxs-ocotp: use devm_platform_ioremap_resource() to simplify codeAnson Huang2019-04-251-3/+1
| | | | | | | | | | | | | | | | | | | | | | Use the new helper devm_platform_ioremap_resource() which wraps the platform_get_resource() and devm_ioremap_resource() together, to simplify the code. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Reviewed-by: Mukesh Ojha <mojha@codeaurora.org> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | nvmem: imx-ocotp: use devm_platform_ioremap_resource() to simplify codeAnson Huang2019-04-251-3/+1
| | | | | | | | | | | | | | | | | | | | | | Use the new helper devm_platform_ioremap_resource() which wraps the platform_get_resource() and devm_ioremap_resource() together, to simplify the code. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Reviewed-by: Mukesh Ojha <mojha@codeaurora.org> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | nvmem: core: fix read buffer in placeJorge Ramirez-Ortiz2019-04-251-5/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the bit_offset in the cell is zero, the pointer to the msb will not be properly initialized (ie, will still be pointing to the first byte in the buffer). This being the case, if there are bits to clear in the msb, those will be left untouched while the mask will incorrectly clear bit positions on the first byte. This commit also makes sure that any byte unused in the cell is cleared. Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | nvmem: core: add nvmem_cell_read_u16Fabrice Gasnier2019-04-251-0/+37
| | | | | | | | | | | | | | | | | | | | | | Add nvmem_cell_read_u16() helper to ease read of an u16 value on consumer side. This is inspired by nvmem_cell_read_u32() function. This helper is useful on stm32 that has 16 bits data cells stored in non volatile memory. Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | nvmem: stm32: add support for STM32MP15 BSEC to control OTP dataFabrice Gasnier2019-04-251-5/+129
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On STM32MP15, OTP area may be read/written by using BSEC (boot, security and OTP control). BSEC registers set is composed of various regions, among which control registers and OTP shadow registers. Secure monitor calls are involved in this process to allow (or deny) access to the full range of OTP data. This adds support for reading and writing OTP data using SMC services. Data content can be aligned on 16-bits or 8-bits. Then take care of it, since BSEC data is 32-bits wide. Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | nvmem: Add driver for STM32 factory-programmed read only memFabrice Gasnier2019-04-253-0/+90
| | | | | | | | | | | | | | | | | | Add a read only nvmem driver for STM32 factory-programmed memory area (on-chip non-volatile storage). Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | nvmem: sunxi_sid: Support SID on A83T and H5Chen-Yu Tsai2019-04-251-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The device tree binding already lists compatible strings for these two SoCs. They don't have the defect as seen on the H3, and the size and register layout is the same as the A64. Furthermore, the driver does not include nvmem cell definitions. Add support for these two compatible strings, re-using the config for the A64. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | nvmem: sunxi_sid: Read out data in native formatChen-Yu Tsai2019-04-251-22/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Originally the SID e-fuses were thought to be in big-endian format. Later sources show that they are in fact native or little-endian. The most compelling evidence is the thermal sensor calibration data, which is a set of one to three 16-bit values. In native-endian they are in 16-bit cells with increasing offsets, whereas with big-endian they are in the wrong order, and a gap with no data will show if there are one or three cells. Switch to a native endian representation for the nvmem device. For the H3, the register read-out method was already returning data in native endian. This only affects the other SoCs. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | nvmem: sunxi_sid: Dynamically allocate nvmem_config structureChen-Yu Tsai2019-04-251-15/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The sunxi_sid driver currently uses a statically allocated nvmem_config structure that is updated at probe time. This is sub-optimal as it limits the driver to one instance, and also takes up space even if the device is not present. Modify the driver to allocate the nvmem_config structure at probe time, plugging in the desired parameters along the way. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | nvmem: sunxi_sid: Optimize register read-out methodChen-Yu Tsai2019-04-251-20/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | SID cells are 32-bit aligned, and a multiple of 32 bits in length. The only outlier is the thermal sensor calibration data, which is 16 bits per sensor. However a whole 64 bits is allocated for this purpose, so we could consider it conforming to the rule above. Also, the register read-out method assumes native endian, unlike the direct MMIO method, which assumes big endian. Thus no endian conversion is involved. Under these assumptions, the register read-out method can be slightly optimized. Instead of reading one word then discarding 3 bytes, read the whole word directly into the buffer. However, for reads under 4 bytes or trailing bytes, we still use a scratch buffer to extract the requested bytes. We could go one step further if .word_size was 4, but changing that would affect the sysfs interface's behavior. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | nvmem: sunxi_sid: Read out SID for randomness without loopingChen-Yu Tsai2019-04-251-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | Since the reg_read callbacks already support arbitrary, but 4-byte aligned. offsets and lengths into the SID, there is no need for another for loop just to use it to read 1 byte at a time. Read out the whole SID block in one go. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | nvmem: imx-ocotp: broaden Kconfig dependencyLucas Stach2019-04-251-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | The i.MX OCOTP controller is used in numerous Freescale/NXP SoCs from the MXC family, so the strict dependency on the i.MX6 SoC is too narrow. Broaden it to cover all the MXC familiy members. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Reviewed-by: Abel Vesa <abel.vesa@nxp.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | nvmem: imx-ocotp: add support for imx8mqLucas Stach2019-04-251-0/+7
|/ | | | | | | | | | The i.MX8MQ uses the same OCOTP block as the i.MX7D, but with fourfold increase in fuse banks. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Reviewed-by: Abel Vesa <abel.vesa@nxp.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge tag 'char-misc-5.1-rc1' of ↵Linus Torvalds2019-03-065-41/+65
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver updates from Greg KH: "Here is the big char/misc driver patch pull request for 5.1-rc1. The largest thing by far is the new habanalabs driver for their AI accelerator chip. For now it is in the drivers/misc directory but will probably move to a new directory soon along with other drivers of this type. Other than that, just the usual set of individual driver updates and fixes. There's an "odd" merge in here from the DRM tree that they asked me to do as the MEI driver is starting to interact with the i915 driver, and it needed some coordination. All of those patches have been properly acked by the relevant subsystem maintainers. All of these have been in linux-next with no reported issues, most for quite some time" * tag 'char-misc-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (219 commits) habanalabs: adjust Kconfig to fix build errors habanalabs: use %px instead of %p in error print habanalabs: use do_div for 64-bit divisions intel_th: gth: Fix an off-by-one in output unassigning habanalabs: fix little-endian<->cpu conversion warnings habanalabs: use NULL to initialize array of pointers habanalabs: fix little-endian<->cpu conversion warnings habanalabs: soft-reset device if context-switch fails habanalabs: print pointer using %p habanalabs: fix memory leak with CBs with unaligned size habanalabs: return correct error code on MMU mapping failure habanalabs: add comments in uapi/misc/habanalabs.h habanalabs: extend QMAN0 job timeout habanalabs: set DMA0 completion to SOB 1007 habanalabs: fix validation of WREG32 to DMA completion habanalabs: fix mmu cache registers init habanalabs: disable CPU access on timeouts habanalabs: add MMU DRAM default page mapping habanalabs: Dissociate RAZWI info from event types misc/habanalabs: adjust Kconfig to fix build errors ...
| * nvmem: core: don't check the return value of notifier chain callBartosz Golaszewski2019-02-191-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | blocking_notifier_call_chain() returns the value returned by the last registered callback. A positive return value doesn't indicate an error and an nvmem device should correctly register irrespective of any notifier callback failures. Drop the retval check. Fixes: bee1138bea15 ("nvmem: add a notifier chain") Cc: stable@vger.kernel.org Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * nvmem: allow to select i.MX nvmem driver for i.MX 7DStefan Agner2019-02-031-1/+1
| | | | | | | | | | | | | | | | | | | | The imx-ocotp nvmem driver supports the i.MX 7D SoC too. Allow to select the imx-ocotp driver even if only the i.MX 7D SoC has been selected. Fixes: 711d45477931 ("nvmem: octop: Add i.MX7D support") Signed-off-by: Stefan Agner <stefan@agner.ch> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * nvmem: core: Avoid useless iterations in nvmem_cell_get_from_lookup()Alban Bedel2019-01-311-3/+2
| | | | | | | | | | | | | | | | | | | | Once the correct cell has been found there is no need to continue iterating, just stop there. While at it replace the goto used to leave the loop with simple break statements. Signed-off-by: Alban Bedel <albeu@free.fr> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * nvmem: core: Fix device reference leakAlban Bedel2019-01-311-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | __nvmem_device_get() make use of bus_find_device() to get the relevant device and this function increase the reference count of the device found, however this is not accounted for anywhere. Fix __nvmem_device_get() and __nvmem_device_put() to properly release this reference count. Signed-off-by: Alban Bedel <albeu@free.fr> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * nvmem: core: Always reference the device returned by nvmem_device_get()Alban Bedel2019-01-311-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In nvmem_device_get(), when the device lookup fails with DT it currently fallback on nvmem_find() which is wrong for two reasons. First nvmem_find() return NULL when nothing is found instead of an ERR_PTR. But nvmem_find() also just lookup the device, it doesn't reference the module and increment the reference count like it is done in the DT path. To fix this we replace the call to nvmem_find() with a call to __nvmem_device_get() which does all the referencing and return a proper ERR_PTR in case of error. Signed-off-by: Alban Bedel <albeu@free.fr> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * nvmem: core: Properly handle connection ID in of_nvmem_device_get()Alban Bedel2019-01-311-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | of_nvmem_device_get() would crash if NULL was passed as a connection ID. Rework this to use the usual sementic of assuming the first connection when no connection ID is given. Furthermore of_nvmem_device_get() would return -EINVAL when it failed to resolve the connection, making it impossible to properly implement an optional connection. Return -ENOENT instead to let the caller know that the connection doesn't exists. Signed-off-by: Alban Bedel <albeu@free.fr> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * nvmem: core: Fix cell lookup when no cell is foundAlban Bedel2019-01-311-6/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the cell list is not empty and nvmem_find_cell_by_node/name() is called for a cell that is not present in the list they will return an invalid pointer instead of NULL. This happen because list_for_each_entry() stop once it reach the list head again, but as the list head is not contained in a struct nvmem_cell the iteration variable then contains an invalid value. This is easily solved by using a variable to iterate over the list and one to return the cell found. Signed-off-by: Alban Bedel <albeu@free.fr> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * nvmem: core: Fix of_nvmem_cell_get() for optional cellsAlban Bedel2019-01-311-1/+1
| | | | | | | | | | | | | | | | | | | | of_nvmem_cell_get() should return -ENOENT when a cell isn't defined, otherwise callers can't distinguish between a missing cell and other errors. Signed-off-by: Alban Bedel <albeu@free.fr> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * nvmem: core: Set the provider read-only when no write callback is givenAlban Bedel2019-01-311-2/+2
| | | | | | | | | | | | | | | | | | | | If no write callback is given the device should be marked as read-only. While at it also move from a bit or to a logical or as that is a logical expression. Signed-off-by: Alban Bedel <albeu@free.fr> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * nvmem: imx-ocotp: Implement i.MX6ULL/ULZ supportStefan Wahren2019-01-311-0/+7
| | | | | | | | | | | | | | | | | | In comparision to the i.MX6UL the lower cost variants i.MX6ULL/ULZ only supports 8 OTP banks a 8 words. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * nvmem: imx-ocotp: add i.MX7ULP supportAnson Huang2019-01-311-0/+6
| | | | | | | | | | | | | | | | | | i.MX7ULP is a new SoC of i.MX family which has 8 kbit eFuse OTP, enable ocotp driver support for this SoC. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * nvmem: bcm-ocotp: Add ACPI support to BCM OCOTPSrinath Mannam2019-01-311-17/+20
| | | | | | | | | | | | | | | | | | | | | | Add ACPI support to bcm ocotp driver This patch is based on Linux-4.20-rc7. Signed-off-by: Srinath Mannam <srinath.mannam@broadcom.com> Acked-by: Scott Branden <scott.branden@broadcom.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * nvmem: sc27xx: Convert nvmem offset to block indexFreeman Liu2019-01-311-4/+8
| | | | | | | | | | | | | | | | | | | | | | | | The Spreadtrum SC27XX efuse data are organized by blocks and each block contains 2 bytes data. Moreover the nvmem core always pass the offset in byte to the controller, so we should change the offset in byte to the correct block index and block offset to read the data. Signed-off-by: Freeman Liu <freeman.liu@unisoc.com> Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-20 00:16:20 +0100