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2022-05-15irqchip/gic-v3: Refactor ISB + EOIR at ack timeMark Rutland1-6/+1
There are cases where a context synchronization event is necessary between an IRQ being raised and being handled, and there are races such that we cannot rely upon the exception entry being subsequent to the interrupt being raised. To fix this, we place an ISB between a read of IAR and the subsequent invocation of an IRQ handler. When EOI mode 1 is in use, we need to EOI an interrupt prior to invoking its handler, and we have a write to EOIR for this. As this write to EOIR requires an ISB, and this is provided by the gic_write_eoir() helper, we omit the usual ISB in this case, with the logic being: | if (static_branch_likely(&supports_deactivate_key)) | gic_write_eoir(irqnr); | else | isb(); This is somewhat opaque, and it would be a little clearer if there were an unconditional ISB, with only the write to EOIR being conditional, e.g. | if (static_branch_likely(&supports_deactivate_key)) | write_gicreg(irqnr, ICC_EOIR1_EL1); | | isb(); This patch rewrites the code that way, with this logic factored into a new helper function with comments explaining what the ISB is for, as were originally laid out in commit: 39a06b67c2c1256b ("irqchip/gic: Ensure we have an ISB between ack and ->handle_irq") Note that since then, we removed the IAR polling in commit: 342677d70ab92142 ("irqchip/gic-v3: Remove acknowledge loop") ... which removed one of the two race conditions. For consistency, other portions of the driver are made to manipulate EOIR using write_gicreg() and explcit ISBs, and the gic_write_eoir() helper function is removed. There should be no functional change as a result of this patch. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Cc: Marc Zyngier <maz@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20220513133038.226182-3-mark.rutland@arm.com
2022-05-13arm: use fallback for random_get_entropy() instead of zeroJason A. Donenfeld1-0/+1
In the event that random_get_entropy() can't access a cycle counter or similar, falling back to returning 0 is really not the best we can do. Instead, at least calling random_get_entropy_fallback() would be preferable, because that always needs to return _something_, even falling back to jiffies eventually. It's not as though random_get_entropy_fallback() is super high precision or guaranteed to be entropic, but basically anything that's not zero all the time is better than returning zero all the time. Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2022-05-13Merge tag 'v5.18-next-dts32' of git://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux into arm/dtArnd Bergmann2-7/+0
Delete no longer needed properties of MediaTek Larbs for MT2701. * tag 'v5.18-next-dts32' of git://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux: arm: dts: mediatek: Get rid of mediatek, larb for MM nodes Link: https://lore.kernel.org/r/b4383f23-0adc-b9de-a1d9-abd1c2f82b27@gmail.com This concludes a cleanup that was started back in 2019, with an incompatible DT binding change. Kernels before 5.18 can no longer use the updated dtb from 5.19, and the drivers no longer parse the old properties, which breaks compatibility with older dtb files. Link: https://lore.kernel.org/lkml/1546318276-18993-2-git-send-email-yong.wu@mediatek.com/ Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-05-13Merge tag 'at91-dt-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux into arm/dtArnd Bergmann15-15/+686
AT91 & LAN966 DT #1 for 5.19: - at91: DT compliance updates to gic and dataflash nodes - lan966: addition to many basic nodes for various peripherals - lan966: Kontron KSwitch D10: support for this new board and its network switch * tag 'at91-dt-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux: ARM: dts: kswitch-d10: enable networking ARM: dts: lan966x: add switch node ARM: dts: lan966x: add serdes node ARM: dts: lan966x: add reset switch reset node ARM: dts: lan966x: add MIIM nodes ARM: dts: lan966x: add hwmon node ARM: dts: lan966x: add basic Kontron KSwitch D10 support ARM: dts: lan966x: add flexcom I2C nodes ARM: dts: lan966x: add flexcom SPI nodes ARM: dts: lan966x: add all flexcom usart nodes ARM: dts: lan966x: add missing uart DMA channel ARM: dts: lan966x: add sgpio node ARM: dts: lan966x: swap dma channels for crypto node ARM: dts: lan966x: rename pinctrl nodes ARM: dts: at91: sama7g5: remove interrupt-parent from gic node ARM: dts: at91: use generic node name for dataflash Link: https://lore.kernel.org/r/20220513162338.87717-1-nicolas.ferre@microchip.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-05-13Merge tag 'mm-hotfixes-stable-2022-05-11' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mmLinus Torvalds2-0/+11
Pull misc fixes from Andrew Morton: "Seven MM fixes, three of which address issues added in the most recent merge window, four of which are cc:stable. Three non-MM fixes, none very serious" [ And yes, that's a real pull request from Andrew, not me creating a branch from emailed patches. Woo-hoo! ] * tag 'mm-hotfixes-stable-2022-05-11' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: MAINTAINERS: add a mailing list for DAMON development selftests: vm: Makefile: rename TARGETS to VMTARGETS mm/kfence: reset PG_slab and memcg_data before freeing __kfence_pool mailmap: add entry for martyna.szapar-mudlaw@intel.com arm[64]/memremap: don't abuse pfn_valid() to ensure presence of linear map procfs: prevent unprivileged processes accessing fdinfo dir mm: mremap: fix sign for EFAULT error return value mm/hwpoison: use pr_err() instead of dump_page() in get_any_page() mm/huge_memory: do not overkill when splitting huge_zero_page Revert "mm/memory-failure.c: skip huge_zero_page in memory_failure()"
2022-05-13Merge tag 'mvebu-arm-5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/gclement/mvebu into arm/socArnd Bergmann1-2/+2
mvebu arm for 5.19 (part 1) Fix typos in comment on orion5x files * tag 'mvebu-arm-5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/gclement/mvebu: orion5x: fix typos in comments Link: https://lore.kernel.org/r/87o801r2ss.fsf@BL-laptop Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-05-13Merge tag 'mvebu-dt-5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/gclement/mvebu into arm/dtArnd Bergmann1-1/+5
mvebu dt for 5.19 (part 1) Add the crypto module atsha204a node for the turis omnia (Armada 385 bases) * tag 'mvebu-dt-5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/gclement/mvebu: ARM: dts: turris-omnia: Add atsha204a node Link: https://lore.kernel.org/r/87lev5r2rg.fsf@BL-laptop Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-05-13ARM: dts: kswitch-d10: enable networkingMichael Walle3-0/+139
Enable all the necessary network related nodes, wire the pinctrl configurations, add the PHYs and connect them to the corresponding network ports. Signed-off-by: Michael Walle <michael@walle.cc> Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220502224127.2604333-14-michael@walle.cc Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
2022-05-13ARM: dts: lan966x: add switch nodeMichael Walle1-0/+62
Add the switch node and its 8 children ports. All are disabled by default. Signed-off-by: Michael Walle <michael@walle.cc> Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com> Tested-by: Horatiu Vultur <horatiu.vultur@microchip.com> Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220502224127.2604333-13-michael@walle.cc Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
2022-05-13ARM: dts: lan966x: add serdes nodeMichael Walle1-0/+8
Add the SerDes node. On the LAN966x SoC these SerDes are used to connect network PHYs. By default, that node is disabled. Signed-off-by: Michael Walle <michael@walle.cc> Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com> Tested-by: Horatiu Vultur <horatiu.vultur@microchip.com> Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220502224127.2604333-12-michael@walle.cc Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
2022-05-13ARM: dts: lan966x: add reset switch reset nodeMichael Walle1-0/+17
Add the switch reset node which will later be used by the switch driver. The switch reset also resets the GPIO controller and the SGPIO controller, thus it also has to be connectected to these nodes. This way the reset will only issued once for the first device requesting the reset. Signed-off-by: Michael Walle <michael@walle.cc> Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com> Tested-by: Horatiu Vultur <horatiu.vultur@microchip.com> Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220502224127.2604333-11-michael@walle.cc Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
2022-05-13ARM: dts: lan966x: add MIIM nodesMichael Walle1-0/+31
Add the MDIO controller nodes. The integrated PHYs are connected to the second controller. This controller also takes care of the resets of the integrated PHYs, thus it has two memory regions. The first controller is routed to the external MDIO/MDC pins. By default, they are disabled. Signed-off-by: Michael Walle <michael@walle.cc> Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com> Tested-by: Horatiu Vultur <horatiu.vultur@microchip.com> Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220502224127.2604333-10-michael@walle.cc Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
2022-05-13ARM: dts: lan966x: add hwmon nodeMichael Walle1-0/+8
Add the monitoring node which covers the temperature sensor as well as the PWM controller and the FAN tacho input. Signed-off-by: Michael Walle <michael@walle.cc> Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com> Tested-by: Horatiu Vultur <horatiu.vultur@microchip.com> Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220502224127.2604333-9-michael@walle.cc Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
2022-05-13ARM: dts: lan966x: add basic Kontron KSwitch D10 supportMichael Walle4-1/+187
Add basic support for the Kontron KSwitch D10 MMT. It comes in two variants: "6G-2GS" which features 6 Gigabit copper ports and two SFP cages and "8G" which features 6 Gigbabit copper ports (where two are 2.5G capable). For now the following is supported and working: - Kernel console - SFP cages - SPI - SGPIO - Watchdog Signed-off-by: Michael Walle <michael@walle.cc> Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com> Tested-by: Horatiu Vultur <horatiu.vultur@microchip.com> [claudiu.beznea: fixed conflict on Makefile] Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220502224127.2604333-8-michael@walle.cc Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
2022-05-13ARM: dts: lan966x: add flexcom I2C nodesMichael Walle1-0/+65
Add all I2C nodes of the flexcom IP blocks. The driver supports FIFO, DMA or both combined. But the latter isn't working correctly. Thus, skip the fifo-size property for now. DMA is doing single byte reads in this case. Keep the nodes disabled by default. Signed-off-by: Michael Walle <michael@walle.cc> Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com> Tested-by: Horatiu Vultur <horatiu.vultur@microchip.com> Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220502224127.2604333-7-michael@walle.cc Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
2022-05-13ARM: dts: lan966x: add flexcom SPI nodesMichael Walle1-0/+75
Add all the SPI nodes for the flexcom IP block. Keep them disabled by default. Signed-off-by: Michael Walle <michael@walle.cc> Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com> Tested-by: Horatiu Vultur <horatiu.vultur@microchip.com> Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220502224127.2604333-6-michael@walle.cc Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
2022-05-13ARM: dts: lan966x: add all flexcom usart nodesMichael Walle1-0/+52
Add all the remaining usart nodes for the flexcom block. Although the DMA channels are specified, DMA is not enabled by default because break detection doesn't work with DMA. Keep the nodes disabled by default. Signed-off-by: Michael Walle <michael@walle.cc> Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com> Tested-by: Horatiu Vultur <horatiu.vultur@microchip.com> Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220502224127.2604333-5-michael@walle.cc Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
2022-05-13ARM: dts: lan966x: add missing uart DMA channelMichael Walle1-0/+3
The usart node of the flexcom3 block is missing the DMA channels. Add it. Signed-off-by: Michael Walle <michael@walle.cc> Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com> Tested-by: Horatiu Vultur <horatiu.vultur@microchip.com> Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220502224127.2604333-4-michael@walle.cc Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
2022-05-13ARM: dts: lan966x: add sgpio nodeMichael Walle1-0/+26
Add the device tree node for the SGPIO IP block reused from the SparX-5. Keep the node disabled by default. Signed-off-by: Michael Walle <michael@walle.cc> Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com> Tested-by: Horatiu Vultur <horatiu.vultur@microchip.com> Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220502224127.2604333-3-michael@walle.cc Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
2022-05-13ARM: dts: lan966x: swap dma channels for crypto nodeMichael Walle1-3/+3
The YAML binding (crypto/atmel,at91sam9g46-aes.yaml) mandates the order of the channels. Swap them to pass devicetree validation. Fixes: 290deaa10c50 ("ARM: dts: add DT for lan966 SoC and 2-port board pcb8291") Signed-off-by: Michael Walle <michael@walle.cc> Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com> Tested-by: Horatiu Vultur <horatiu.vultur@microchip.com> Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220502224127.2604333-2-michael@walle.cc Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
2022-05-13ARM: dts: lan966x: rename pinctrl nodesMichael Walle1-1/+1
The pinctrl device tree binding will be converted to YAML format. Rename the pin nodes so they end with "-pins" to match the schema. Signed-off-by: Michael Walle <michael@walle.cc> Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220420194230.3415663-1-michael@walle.cc Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
2022-05-13ARM: dts: at91: sama7g5: remove interrupt-parent from gic nodeEugen Hristev1-1/+0
interrupt-parent is not to be used as a boolean property. It is already present in the DT in the proper way it's supposed to be used: interrupt-parent = <&gic>; This is also reported by dtbs_check: arch/arm/boot/dts/at91-sama7g5ek.dtb: interrupt-controller@e8c11000: interrupt-parent: True is not of type 'array' From schema: /.local/lib/python3.8/site-packages/dtschema/schemas/interrupts.yaml Fixes: 7540629e2fc7 ("ARM: dts: at91: add sama7g5 SoC DT and sama7g5-ek") Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com> Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220503133127.64320-1-eugen.hristev@microchip.com Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
2022-05-13ARM: dts: at91: use generic node name for dataflashKrzysztof Kozlowski8-9/+9
The node names should be generic, so use "flash" for dataflash nodes and for cfi-flash. Suggested-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com> Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220412105013.249793-1-krzysztof.kozlowski@linaro.org Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
2022-05-13ARM: dts: turris-omnia: Add atsha204a nodePali Rohár1-1/+5
Crypto module atsha204a is available at i2c address 0x64. Module is used for symmetric cryptography and provides also hardware random number generator and OTP storage for device serial number and MAC addresses. Signed-off-by: Pali Rohár <pali@kernel.org> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
2022-05-13Merge tag 'at91-soc-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux into arm/socArnd Bergmann7-35/+506
AT91 & POLARFIRE SoC #1 for 5.19: - Power Management: add possibility to implement specific pm quirks for some SoCs - Kconfig update for AT91 PIT64 and LAN966 low-level debugging - sama5d2: add secure calls to OP-TEE and secure suspend * tag 'at91-soc-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux: ARM: at91: debug: add lan966 support ARM: at91: pm: add support for sama5d2 secure suspend ARM: at91: add code to handle secure calls ARM: at91: Kconfig: implement PIT64B selection ARM: at91: pm: add quirks for pm ARM: at91: pm: use kernel documentation style ARM: at91: pm: introduce macros for pm mode replacement ARM: at91: pm: keep documentation inline with structure members Link: https://lore.kernel.org/r/20220513121701.77683-1-nicolas.ferre@microchip.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-05-13ARM: configs: Enable ASoC AC'97 glueMark Brown1-0/+1
AC'97 was quite commonly used on at least i.MX designs so enable the glue code that allows use of AC'97 with ASoC based designs to improve testing coverage. Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20220513120632.168148-1-broonie@kernel.org' Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-05-13Merge tag 'v5.18-next-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux into arm/defconfigArnd Bergmann1-0/+1
- Enable essential PMIC and regulatro drivers for MT8195. - Enable Arm arch timer for MT7629. * tag 'v5.18-next-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux: arm: mediatek: select arch timer for mt7629 arm64: defconfig: enable some mt6360 PMIC drivers arm64: defconfig: enable MT6359 regulator driver Link: https://lore.kernel.org/r/3a6e5606-7b89-2ad8-7b45-21d3a4e9e706@gmail.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-05-13ARM: at91: debug: add lan966 supportKavyasree Kotagiri1-0/+22
Add support for low-level debugging on FLEXCOM USART of LAN966 SoC. Signed-off-by: Kavyasree Kotagiri <kavyasree.kotagiri@microchip.com> Reviewed-by: Michael Walle <michael@walle.cc> Tested-by: Michael Walle <michael@walle.cc> Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com> Link: https://lore.kernel.org/r/20220513092530.19213-1-kavyasree.kotagiri@microchip.com
2022-05-13Merge tag 'v5.19-rockchip-soc32-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into arm/socArnd Bergmann1-1/+1
Comment typo fix. * tag 'v5.19-rockchip-soc32-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip: ARM: rockchip: fix typos in comments Link: https://lore.kernel.org/r/4421093.ElGaqSPkdT@phil Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-05-13Merge tag 'v5.19-rockchip-dts32-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into arm/dtArnd Bergmann3-4/+5
Naming and flag corrections. * tag 'v5.19-rockchip-dts32-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip: ARM: dts: rockchip: rename pcfg_pull_default node name on rk3036 ARM: dts: rockchip: use generic node name for dma rk3036/rk322x ARM: dts: rockchip: correct interrupt flags on rk3188 boards Link: https://lore.kernel.org/r/6919636.31r3eYUQgx@phil Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-05-13Revert "ARM: dts: BCM5301X: Fix DTC warning for NAND node"Arnd Bergmann1-0/+2
This reverts commit 90103611d573, which caused a new DTC warning arch/arm/boot/dts/bcm953012hr.dts:57.3-33: Warning (reg_format): /nand-controller@18028000/nand@0/partition@0:reg: property has invalid length (8 bytes) (#address-cells == 2, #size-cells == 1) arch/arm/boot/dts/bcm953012hr.dts:62.3-33: Warning (reg_format): /nand-controller@18028000/nand@0/partition@200000:reg: property has invalid length (8 bytes) (#address-cells == 2, #size-cells == 1) arch/arm/boot/dts/bcm953012hr.dts:66.3-33: Warning (reg_format): /nand-controller@18028000/nand@0/partition@600000:reg: property has invalid length (8 bytes) (#address-cells == 2, #size-cells == 1) arch/arm/boot/dts/bcm953012hr.dts:70.3-33: Warning (reg_format): /nand-controller@18028000/nand@0/partition@1000000:reg: property has invalid length (8 bytes) (#address-cells == 2, #size-cells == 1) arch/arm/boot/dts/bcm953012hr.dtb: Warning (pci_device_reg): Failed prerequisite 'reg_format' arch/arm/boot/dts/bcm953012hr.dtb: Warning (pci_device_bus_num): Failed prerequisite 'reg_format' arch/arm/boot/dts/bcm953012hr.dtb: Warning (i2c_bus_reg): Failed prerequisite 'reg_format' arch/arm/boot/dts/bcm953012hr.dtb: Warning (spi_bus_reg): Failed prerequisite 'reg_format' Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-05-12ARM: dts: socfpga: align SPI NOR node name with dtschemaKrzysztof Kozlowski4-5/+5
The node names should be generic and SPI NOR dtschema expects "flash". Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
2022-05-12ARM: at91: pm: add support for sama5d2 secure suspendClément Léger3-1/+50
When running with OP-TEE, the suspend control is handled securely. Suspend can be entered using PSCI support. Since the sama5d2 supports multiple suspend modes, add a new CONFIG_ATMEL_SECURE_PM which will send a SMC call to select the suspend mode at init time. "atmel.pm_modes" boot argument is still supported for compatibility purposes but the standby value is actually ignored since PSCI suspend is used and it only support one mode (suspend). Signed-off-by: Clément Léger <clement.leger@bootlin.com> Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
2022-05-12ARM: at91: add code to handle secure callsClément Léger4-1/+63
Since OP-TEE now has a more complete support for sama5d2, add necessary code to perform SMC calls. The detection of OP-TEE is based on a specific device-tree node path (/firmware/optee) such has done by some other SoC. A check is added to avoid doing SMC calls without having OP-TEE. Signed-off-by: Clément Léger <clement.leger@bootlin.com> Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
2022-05-12ARM: at91: Kconfig: implement PIT64B selectionClaudiu Beznea1-0/+9
Implement PIT64B selection thus it will be available for the necessary targets (at the moment SAM9X60 and SAMA7G5) w/o the necessity to specify it via defconfig. With this the current CONFIG_TIMER_OF dependency of PIT64B driver could be removed. Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
2022-05-12ARM: at91: pm: add quirks for pmClaudiu Beznea1-2/+302
SoCs supporting ULP0 or ULP1 modes and variants of Cadence Ethernet IP (controlled by macb driver) may behave buggy when Wake-on-Lan (WoL) is configured and WoL packet is received while in ULP0/ULP1. On some SoCs Ethernet interface is not working after resume. On other SoCs the CPU goes to abort on resume path when switching execution from internal SRAM to DRAM. For ULP1 + WoL the issue is related a particular restart sequence of the internal clocks when resuming. These clocks are automatically managed by PMC and may happen that GMAC peripheral clock is restarted few clock cycles before internal clocks causing blocking of Ethernet's DMA. As a consequence Ethernet TX transactions are stopped and RX transactions are partially stopped (packets are received by MAC, RX counters incremented but the data is not transferred to DRAM). The workaround for this is to disable Ethernet's peripheral clock when going to ULP1. Same behavior has been reproduced on ULP0 for some platforms (SAMA5D2, SAMA5D3) and the same workaround solves the issue. The problem has been solved on pm.c as quirk to avoid polluting the MACB driver with AT91 specific issues as this driver is generic to multiple vendors. At probe pointers to struct device_node are retrieved and on the at91_pm_enter() the quirk specifics are applied: for all Ethernet interfaces that were parsed the peripheral clocks are disabled. A special handling is done for modes in dns_modes mask as these are considered modes that blocks the system if WoL packet are received but for which applying quirk will lead to not waking up on WoL packets: in situation where Ethernet interface(s) has suspend mode in dns_modes mask and Ethernet interface(s) is the only available wakeup source the suspend is canceled. Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
2022-05-12ARM: at91: pm: use kernel documentation styleClaudiu Beznea1-3/+3
Use kernel documentation style. Along with it fix the naming of struct at91_pm_sfrbu_regs in documentation. Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
2022-05-12ARM: at91: pm: introduce macros for pm mode replacementClaudiu Beznea1-27/+56
Introduce macros to replace standby/suspend mode if they depends on controllers that failed to map (or other errors). Macros keep track of the complementary mode to avoid having set the same AT91 PM mode for both suspend and standby. Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
2022-05-12ARM: at91: pm: keep documentation inline with structure membersClaudiu Beznea1-1/+1
Move documentation of bu to keep the same order as in the structure itself. Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
2022-05-11swiotlb-xen: fix DMA_ATTR_NO_KERNEL_MAPPING on armChristoph Hellwig2-16/+0
swiotlb-xen uses very different ways to allocate coherent memory on x86 vs arm. On the former it allocates memory from the page allocator, while on the later it reuses the dma-direct allocator the handles the complexities of non-coherent DMA on arm platforms. Unfortunately the complexities of trying to deal with the two cases in the swiotlb-xen.c code lead to a bug in the handling of DMA_ATTR_NO_KERNEL_MAPPING on arm. With the DMA_ATTR_NO_KERNEL_MAPPING flag the coherent memory allocator does not actually allocate coherent memory, but just a DMA handle for some memory that is DMA addressable by the device, but which does not have to have a kernel mapping. Thus dereferencing the return value will lead to kernel crashed and memory corruption. Fix this by using the dma-direct allocator directly for arm, which works perfectly fine because on arm swiotlb-xen is only used when the domain is 1:1 mapped, and then simplifying the remaining code to only cater for the x86 case with DMA coherent device. Reported-by: Rahul Singh <Rahul.Singh@arm.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Rahul Singh <rahul.singh@arm.com> Reviewed-by: Stefano Stabellini <sstabellini@kernel.org> Tested-by: Rahul Singh <rahul.singh@arm.com>
2022-05-11Merge branch 'v5.18-rc5'Peter Zijlstra59-494/+269
Obtain the new INTEL_FAM6 stuff required. Signed-off-by: Peter Zijlstra <peterz@infradead.org>
2022-05-11kbuild: factor out the common installation code into scripts/install.shMasahiro Yamada2-23/+2
Many architectures have similar install.sh scripts. The first half is really generic; it verifies that the kernel image and System.map exist, then executes ~/bin/${INSTALLKERNEL} or /sbin/${INSTALLKERNEL} if available. The second half is kind of arch-specific; it copies the kernel image and System.map to the destination, but the code is slightly different. Factor out the generic part into scripts/install.sh. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Reviewed-by: Nicolas Schier <n.schier@avm.de>
2022-05-09arm[64]/memremap: don't abuse pfn_valid() to ensure presence of linear mapMike Rapoport2-0/+11
The semantics of pfn_valid() is to check presence of the memory map for a PFN and not whether a PFN is covered by the linear map. The memory map may be present for NOMAP memory regions, but they won't be mapped in the linear mapping. Accessing such regions via __va() when they are memremap()'ed will cause a crash. On v5.4.y the crash happens on qemu-arm with UEFI [1]: <1>[ 0.084476] 8<--- cut here --- <1>[ 0.084595] Unable to handle kernel paging request at virtual address dfb76000 <1>[ 0.084938] pgd = (ptrval) <1>[ 0.085038] [dfb76000] *pgd=5f7fe801, *pte=00000000, *ppte=00000000 ... <4>[ 0.093923] [<c0ed6ce8>] (memcpy) from [<c16a06f8>] (dmi_setup+0x60/0x418) <4>[ 0.094204] [<c16a06f8>] (dmi_setup) from [<c16a38d4>] (arm_dmi_init+0x8/0x10) <4>[ 0.094408] [<c16a38d4>] (arm_dmi_init) from [<c0302e9c>] (do_one_initcall+0x50/0x228) <4>[ 0.094619] [<c0302e9c>] (do_one_initcall) from [<c16011e4>] (kernel_init_freeable+0x15c/0x1f8) <4>[ 0.094841] [<c16011e4>] (kernel_init_freeable) from [<c0f028cc>] (kernel_init+0x8/0x10c) <4>[ 0.095057] [<c0f028cc>] (kernel_init) from [<c03010e8>] (ret_from_fork+0x14/0x2c) On kernels v5.10.y and newer the same crash won't reproduce on ARM because commit b10d6bca8720 ("arch, drivers: replace for_each_membock() with for_each_mem_range()") changed the way memory regions are registered in the resource tree, but that merely covers up the problem. On ARM64 memory resources registered in yet another way and there the issue of wrong usage of pfn_valid() to ensure availability of the linear map is also covered. Implement arch_memremap_can_ram_remap() on ARM and ARM64 to prevent access to NOMAP regions via the linear mapping in memremap(). Link: https://lore.kernel.org/all/Yl65zxGgFzF1Okac@sirena.org.uk Link: https://lkml.kernel.org/r/20220426060107.7618-1-rppt@kernel.org Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Reported-by: "kernelci.org bot" <bot@kernelci.org> Tested-by: Mark Brown <broonie@kernel.org> Reviewed-by: Ard Biesheuvel <ardb@kernel.org> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Mark Brown <broonie@kernel.org> Cc: Mark-PK Tsai <mark-pk.tsai@mediatek.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Tony Lindgren <tony@atomide.com> Cc: Will Deacon <will@kernel.org> Cc: <stable@vger.kernel.org> [5.4+] Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-05-09Merge tag 'imx-dt-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/dtArnd Bergmann101-1440/+5920
i.MX ARM device tree update for 5.19: - New board support: PHYTEC phyGATE-Tauri-S, TQ-Systems MBa6UL, LS1021A IoT board, Toradex Iris and Aster carrier, i.MX7D SMEGW01, i.MXRT1050 EVK, Bosch ACC board. - A series from Alexander Stein to update i.MX51 based digi-connectcore board, regarding to DMA of UART devices, PMIC voltages, USB vbus-supply and usbphy. - A series of changes from David Jander and Oleksij Rempel to remove prototype specific deprecated code not used in production from i.MX6Q/DL Vicut1 board, and unify Vicut1 and Victgo variants to reduce maintaining overhead. - Quite some changes from different people to update imx6ull-colibri board on various aspects, touchscreen, device tree overlays, NAND BCH geometry, GPIO line names, FEC phy-supply, etc. - A couple of changes from Fabio Estevam to switch imx6dl-plybas and imx6ul-kontron-n6x1x-s to use standard 'uart-has-rtscts' property. - A couple of patches from Li Yang to update IFC device compatible and node name for LayerScape SoCs. - Disable USB host to work around boot issue on imx6qdl-udoo board. - A series from Max Krummenacher to update Colibri i.MX6DL device trees, drop dedicated v1.1 DT, disable add-on accessories, cleanups, etc. - Various random and small updates on i.MX28 and i.MX6 boards. * tag 'imx-dt-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: (77 commits) ARM: dts: imx6ull-colibri: improve pinctrl node names ARM: dts: imx6ull-colibri: move gpio-keys node to som dtsi ARM: dts: imx6ull-colibri: add/update some comments ARM: dts: imx6ull-colibri: fix nand bch geometry ARM: dts: imx6ull-colibri: add support for toradex aster carrier boards ARM: dts: imx6ull-colibri: add support for toradex iris carrier boards ARM: dts: imx6ull-colibri: add gpio-line-names ARM: dts: imx6ull-colibri: update device trees to support overlays ARM: dts: imx6ull-colibri: update usdhc1 pixmux and signaling ARM: dts: imx6ull-colibri: add touchscreen device nodes ARM: dts: imx6ull-colibri: add phy-supply to fec ARM: dts: imx6ull-colibri: change touch i2c parameters ARM: dts: imx6ull-colibri: use pull-down for adc pins ARM: dts: Add bosch acc board ARM: dts: imx: Add i.MXRT1050-EVK support ARM: dts: imx7d-smegw01: Add support for i.MX7D SMEGW01 board ARM: dts: imx6qdl-udoo: Disable USB host to work around boot issues ARM: dts: imx27: use new 'dma-channels' property ARM: dts: imx6qdl-phytec: Add LED labels ARM: dts: ls1021a: reduce the interrupt-map-mask ... Link: https://lore.kernel.org/r/20220508033843.2773685-3-shawnguo@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-05-09Merge tag 'qcom-dts-for-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/dtArnd Bergmann37-4670/+4820
Qualcomm ARM DT updates for v5.19 This contains a long overdue overhaul of the MSM8974 DeviceTrees, aligning the style, structure and naming with what we've learned since the introduction of this platform. On top of this the Sony Rhine platform gained I2C masters, NFC and pstore support and the Fairphone 2 gained touchscreen support. For the new SDX65 platform reserved-memory nodes, rpmpd, SPMI, CPU clocks, SDHCI controller, SMMU and TCSR mutex was added. As was the initial DeviceTree for the related PMX65 PMIC. MSM8226 gained VADC and RTC support and support for the ASUS ZenWatch 2 was added. * tag 'qcom-dts-for-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux: (62 commits) ARM: dts: qcom: msm8974-FP2: Add supplies for remoteprocs ARM: dts: qcom: msm8974-FP2: Configure charger ARM: dts: qcom: msm8974-FP2: Add support for touchscreen ARM: dts: qcom: sdx55: Remove ipa interconnect node ARM: dts: qcom: msm8974: Add missing license headers ARM: dts: qcom: msm8974-FP2: Add mmc* aliases ARM: dts: qcom: msm8974-FP2: We're msm8974pro ARM: dts: qcom-msm8974*: Remove unnecessary include ARM: dts: qcom-msm8974-rhine: Add pstore node ARM: dts: qcom-msm8974-rhine: Add NFC and enable I2C hosts ARM: dts: qcom-msm8974*: Clean up old GPIO declarations ARM: dts: qcom-msm8974*: Consolidate I2C/UART/SDHCI ARM: dts: qcom-msm8974*: Enable IMEM unconditionally ARM: dts: qcom-msm8974: Sort and clean up nodes ARM: dts: qcom-msm8974: Convert ADSP to a MMIO device ARM: dts: qcom-msm8974pro-*: Use the 8974pro name in DT filenames ARM: dts: qcom-msm8974pro: Use &labels ARM: dts: qcom-msm8974-castor: Use &labels ARM: dts: qcom-msm8974-{"hon","am"}ami: Commonize and modernize the DTs ARM: dts: qcom-msm8974-klte: Use &labels ... Link: https://lore.kernel.org/r/20220509172125.313259-1-bjorn.andersson@linaro.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-05-09Merge tag 'hisi-armv7soc-for-5.19' of https://github.com/hisilicon/linux-hisi into arm/socArnd Bergmann1-0/+4
HiSilicon ARMv7 SoC updates for v5.19 - Add of_node_put to avoid the refcount leak * tag 'hisi-armv7soc-for-5.19' of https://github.com/hisilicon/linux-hisi: ARM: hisi: Add missing of_node_put after of_find_compatible_node Link: https://lore.kernel.org/r/62762DF0.30602@hisilicon.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-05-09Merge tag 'qcom-defconfig-for-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/defconfigArnd Bergmann1-0/+8
Qualcomm ARM defconfig updates for v5.19 This enables the Qualcomm random number generator and hardware crypto drivers, as well as DebugFS support, in the qcom defconfig. * tag 'qcom-defconfig-for-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux: ARM: qcom_defconfig: enable debug fs support ARM: qcom_defconfig: enable options for Qualcomm random number generator Link: https://lore.kernel.org/r/20220509182209.317208-1-bjorn.andersson@linaro.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-05-09Merge tag 'imx-defconfig-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/defconfigArnd Bergmann1-0/+1
i.MX defconfig update for 5.19: - Enable the WM8524 codec driver as module in arm64 defconfig for audio support on imx8mn-evk board. - Enable the ADC part of the STMPE MFD in imx_v6_v7_defconfig, as the SoM Apalis/Colibri iMX6 use the ADC of a STMPE 811. * tag 'imx-defconfig-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: arm64: defconfig: Enable the WM8524 codec driver ARM: imx_v6_v7_defconfig: Enable the ADC part of the STMPE MFD Link: https://lore.kernel.org/r/20220508033843.2773685-5-shawnguo@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-05-09ARM: configs: Enable audio on BeagleBone Black in multi_v7_defconfigMark Brown1-0/+2
The BeagleBone Black supports audio over HDMI, using a combination of the DaVinci McASP (used for audio by a very large proportion of DaVinci systems with audio support) and a TDA998x device driving the HDMI link (this is a very widely used driver). Build both drivers as modules in multi_v7_defconfig so they can be more easily included in testing. Signed-off-by: Mark Brown <broonie@kernel.org> Reviewed-by: Bartosz Golaszewski <brgl@bgdev.pl> Link: https://lore.kernel.org/r/20220506222646.1671474-1-broonie@kernel.org' Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-05-09Merge tag 'sunxi-dt-for-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into arm/dtArnd Bergmann1-1/+0
- F1C100 improvements (SPI, MMC, timer, cpu, watchdog) - SPI flash node for licheepi-nano - enabled analogue audio on olinuxino-a64 - GPIO port regulators on teres-i - remove undocumented property from nanopi * tag 'sunxi-dt-for-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux: ARM: dts: sunxi: nanopi: Remove input-name property Link: https://lore.kernel.org/r/Yngton59OacOR2ht@kista.localdomain Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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