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2021-05-11ARM: dts: exynos: enable PMIC wakeup from suspend on Odroid X/U3Krzysztof Kozlowski1-0/+1
The RTC on Maxim max77686 PMIC can wakeup the system from suspend to RAM. Add a generic property for this. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210420164943.11152-6-krzysztof.kozlowski@canonical.com
2021-05-11ARM: dts: exynos: enable PMIC wakeup from suspend on MidasKrzysztof Kozlowski1-0/+1
The RTC on Maxim max77686 PMIC can wakeup the system from suspend to RAM. Add a generic property for this. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210420164943.11152-5-krzysztof.kozlowski@canonical.com
2021-05-11ARM: dts: exynos: enable PMIC wakeup from suspend on Odroid XUKrzysztof Kozlowski1-0/+1
The RTC on Maxim max77802 PMIC can wakeup the system from suspend to RAM. Add a generic property for this. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210420164943.11152-4-krzysztof.kozlowski@canonical.com
2021-05-11ARM: dts: exynos: enable PMIC wakeup from suspend on ArndaleKrzysztof Kozlowski1-0/+1
The RTC on S5M8767 PMIC can wakeup the system from suspend to RAM. Add a generic property for this. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210420164943.11152-3-krzysztof.kozlowski@canonical.com
2021-05-11ARM: dts: exynos: enable PMIC wakeup from suspend on Origen4412Krzysztof Kozlowski1-0/+1
The RTC on S5M8767 PMIC can wakeup the system from suspend to RAM. Add a generic property for this. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210420164943.11152-2-krzysztof.kozlowski@canonical.com
2021-05-11ARM: dts: exynos: enable PMIC wakeup from suspend on Itop CoreKrzysztof Kozlowski1-0/+1
The RTC on S5M8767 PMIC can wakeup the system from suspend to RAM. Add a generic property for this. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210420164943.11152-1-krzysztof.kozlowski@canonical.com
2021-05-11ARM: dts: s5pv210: remove unused Atmel touchscreen properties in GoniKrzysztof Kozlowski1-9/+0
The Atmel bindings and driver do not use custom properties like x/y-size, burst length, threshold and so on. The driver gets necessary data from the device directly. Remove unused properties to fix dtbs_check warning: arch/arm/boot/dts/s5pv210-goni.dt.yaml: touchscreen@4a: 'atmel,burst-length', 'atmel,orientation', 'atmel,threshold', 'atmel,x-line', 'atmel,x-size', 'atmel,y-line', 'atmel,y-size' do not match any of the regexes Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210506152044.37579-1-krzysztof.kozlowski@canonical.com
2021-05-11ARM: dts: exynos: fix PWM LED max brightness on Odroid XU4Krzysztof Kozlowski1-1/+1
There is no "max_brightness" property as pointed out by dtschema: arch/arm/boot/dts/exynos5422-odroidxu4.dt.yaml: led-controller: led-1: 'max-brightness' is a required property Fixes: 6658356014cb ("ARM: dts: Add support Odroid XU4 board for exynos5422-odroidxu4") Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210505135941.59898-5-krzysztof.kozlowski@canonical.com
2021-05-11ARM: dts: exynos: fix PWM LED max brightness on Odroid HC1Krzysztof Kozlowski1-1/+1
There is no "max_brightness" property as pointed out by dtschema: arch/arm/boot/dts/exynos5422-odroidhc1.dt.yaml: led-controller: led-1: 'max-brightness' is a required property Fixes: 1ac49427b566 ("ARM: dts: exynos: Add support for Hardkernel's Odroid HC1 board") Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210505135941.59898-4-krzysztof.kozlowski@canonical.com
2021-05-11ARM: dts: exynos: fix PWM LED max brightness on Odroid XU/XU3Krzysztof Kozlowski1-2/+2
There is no "max_brightness" property. This brings the intentional brightness reduce of green LED and dtschema checks as well: arch/arm/boot/dts/exynos5410-odroidxu.dt.yaml: led-controller-1: led-1: 'max-brightness' is a required property Fixes: 719f39fec586 ("ARM: dts: exynos5422-odroidxu3: Hook up PWM and use it for LEDs") Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210505135941.59898-3-krzysztof.kozlowski@canonical.com
2021-05-11ARM: dts: exynos: replace legacy MMS114 touchscreen x/y properties in GT-N7100Krzysztof Kozlowski1-2/+2
Replace legacy MMS114 touchscreen properties to fix dtschema warnings: arch/arm/boot/dts/exynos4412-n710x.dt.yaml: touchscreen@48: 'x-size', 'y-size' do not match any of the regexes: 'pinctrl-[0-9]+' arch/arm/boot/dts/exynos4412-n710x.dt.yaml: touchscreen@48: 'touchscreen-size-x' is a required property Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210505135941.59898-2-krzysztof.kozlowski@canonical.com
2021-05-11ARM: dts: exynos: align Broadcom WiFi with dtschemaKrzysztof Kozlowski4-4/+4
The Broadcom BCM4329 family dtschema expects devices to be compatible also with brcm,bcm4329-fmac: arch/arm/boot/dts/exynos3250-rinato.dt.yaml: wifi@1: compatible: 'oneOf' conditional failed, one must be fixed: ['brcm,bcm4334-fmac'] is too short 'brcm,bcm4329-fmac' was expected Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210505135941.59898-1-krzysztof.kozlowski@canonical.com
2021-05-11ARM: exynos: add missing of_node_put for loop iterationKrzysztof Kozlowski1-0/+2
Early exits from for_each_compatible_node() should decrement the node reference counter. Reported by Coccinelle: arch/arm/mach-exynos/exynos.c:52:1-25: WARNING: Function "for_each_compatible_node" should have of_node_put() before break around line 58. Fixes: b3205dea8fbf ("ARM: EXYNOS: Map SYSRAM through generic DT bindings") Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20210425174945.164612-1-krzysztof.kozlowski@canonical.com
2021-05-11ARM: s3c: Remove unnecessary break in RX1950Wan Jiabing1-1/+0
There is a return above the break. The break here is unnecessary. Remove it. Signed-off-by: Wan Jiabing <wanjiabing@vivo.com> Link: https://lore.kernel.org/r/20210409064920.1096367-1-wanjiabing@vivo.com Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
2021-05-11ARM: dts: sun8i-a33: Allow using multiple codec DAIsSamuel Holland1-2/+2
Increase #sound-dai-cells on the digital codec to allow using the other DAIs provided by the codec for AIF2 and AIF3. Signed-off-by: Samuel Holland <samuel@sholland.org> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://lore.kernel.org/r/20210430035859.3487-3-samuel@sholland.org
2021-05-11ARM: dts: imx25-pinfunc: Fix gpio function name for pads GPIO_[A-F]Uwe Kleine-König1-6/+6
The pinfunc definitions used GPIO_A as function instead of GPIO_1_0 as done for all the other pins with GPIO functionality. Fix for consistency. There are no mainline users that needs adaption. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-05-11ARM: dts: imx6qdl-wandboard-revd1: Remove PAD_EIM_D22 from hog groupFabio Estevam1-1/+0
The MX6QDL_PAD_EIM_D22 pad is already handled in the common imx6qdl-wandboard.dtsi file. Remove it from the local hog group to avoid the following runtime error: [ 0.117763] imx6q-pinctrl 20e0000.pinctrl: pin MX6Q_PAD_EIM_D22 already requested by 20e0000.pinctrl; cannot claim for regulator-usbotgvbus [ 0.117785] imx6q-pinctrl 20e0000.pinctrl: pin-42 (regulator-usbotgvbus) status -22 [ 0.117802] imx6q-pinctrl 20e0000.pinctrl: could not request pin 42 (MX6Q_PAD_EIM_D22) from group usbotgvbusgrp on device 20e0000.pinctrl [ 0.117822] reg-fixed-voltage regulator-usbotgvbus: Error applying setting, reverse things back [ 0.117844] reg-fixed-voltage: probe of regulator-usbotgvbus failed with error -22 Signed-off-by: Fabio Estevam <festevam@gmail.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-05-11ARM: dts: ixp4xx: Add ethernetLinus Walleij4-1/+105
This adds ethernet to the IXP4xx device trees. Cc: Zoltan HERPAI <wigyori@uid0.hu> Cc: Raylynn Knight <rayknight@me.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-05-11ARM: dts: BCM5301X: Fix pinmux subnodes namesRafał Miłecki2-4/+4
This matches pinmux-node.yaml requirements. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2021-05-11ARM: dts: Hurricane 2: Fix NAND nodes namesRafał Miłecki1-1/+1
This matches nand-controller.yaml requirements. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2021-05-11ARM: dts: BCM63xx: Fix NAND nodes namesRafał Miłecki2-3/+3
This matches nand-controller.yaml requirements. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2021-05-11ARM: NSP: dts: fix NAND nodes namesRafał Miłecki9-17/+17
This matches nand-controller.yaml requirements. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2021-05-11ARM: Cygnus: dts: fix NAND nodes namesRafał Miłecki4-7/+7
This matches nand-controller.yaml requirements. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2021-05-11ARM: brcmstb: dts: fix NAND nodes namesRafał Miłecki2-3/+3
This matches nand-controller.yaml requirements. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2021-05-11ARM: dts: BCM5301X: Fix NAND nodes namesRafał Miłecki5-9/+9
This matches nand-controller.yaml requirements. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2021-05-10asm-generic: unaligned always use struct helpersArnd Bergmann1-25/+0
As found by Vineet Gupta and Linus Torvalds, gcc has somewhat unexpected behavior when faced with overlapping unaligned pointers. The kernel's unaligned/access-ok.h header technically invokes undefined behavior that happens to usually work on the architectures using it, but if the compiler optimizes code based on the assumption that undefined behavior doesn't happen, it can create output that actually causes data corruption. A related problem was previously found on 32-bit ARMv7, where most instructions can be used on unaligned data, but 64-bit ldrd/strd causes an exception. The workaround was to always use the unaligned/le_struct.h helper instead of unaligned/access-ok.h, in commit 1cce91dfc8f7 ("ARM: 8715/1: add a private asm/unaligned.h"). The same solution should work on all other architectures as well, so remove the access-ok.h variant and use the other one unconditionally on all architectures, picking either the big-endian or little-endian version. With this, the arm specific header can be removed as well, and the only file including linux/unaligned/access_ok.h gets moved to including the normal file. Fortunately, this made almost no difference to the object code produced by gcc-11. On x86, s390, powerpc, and arc, the resulting binary appears to be identical to the previous version, while on arm64 and m68k there are minimal differences that looks like an optimization pass went into a different direction, usually using fewer stack spills on the new version. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100363
2021-05-10asm-generic: unaligned: remove byteshift helpersArnd Bergmann1-2/+0
In theory, compilers should be able to work this out themselves so we can use a simpler version based on the swab() helpers. I have verified that this works on all supported compiler versions (gcc-4.9 and up, clang-10 and up). Looking at the object code produced by gcc-11, I found that the impact is mostly a change in inlining decisions that lead to slightly larger code. In other cases, this version produces explicit byte swaps in place of separate byte access, or comparing against pre-swapped constants. While the source code is clearly simpler, I have not seen an indication of the new version actually producing better code on Arm, so maybe we want to skip this after all. From what I can tell, gcc recognizes the byteswap pattern in the byteshift.h header and can turn it into explicit instructions, but it does not turn a __builtin_bswap32() back into individual bytes when that would result in better output, e.g. when storing a byte-reversed constant. Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-05-10ARM: PXA: Fix cplds irqdesc allocation when using legacy modeMarc Zyngier1-1/+6
The Mainstone PXA platform uses CONFIG_SPARSE_IRQ, and thus we cannot rely on the irq descriptors to be readilly allocated before creating the irqdomain in legacy mode. The kernel then complains loudly about not being able to associate the interrupt in the domain -- can't blame it. Fix it by allocating the irqdescs upfront in the legacy case. Fixes: b68761da0111 ("ARM: PXA: Kill use of irq_create_strict_mappings()") Reported-by: Guenter Roeck <linux@roeck-us.net> Tested-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20210426223942.GA213931@roeck-us.net
2021-05-10ARM: dts: rockchip: add #power-domain-cells to power domain nodesJohan Jonker3-0/+10
Add #power-domain-cells to power domain nodes, because they are required by power-domain.yaml Signed-off-by: Johan Jonker <jbx6244@gmail.com> Link: https://lore.kernel.org/r/20210417112952.8516-5-jbx6244@gmail.com Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2021-05-10ARM: dts: rockchip: Fix power-controller node names for rk3288Elaine Zhang1-4/+4
Use more generic names (as recommended in the device tree specification or the binding documentation) Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com> Reviewed-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Signed-off-by: Johan Jonker <jbx6244@gmail.com> Link: https://lore.kernel.org/r/20210417112952.8516-4-jbx6244@gmail.com Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2021-05-10ARM: dts: rockchip: Fix power-controller node names for rk3188Elaine Zhang1-3/+3
Use more generic names (as recommended in the device tree specification or the binding documentation) Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com> Reviewed-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Signed-off-by: Johan Jonker <jbx6244@gmail.com> Link: https://lore.kernel.org/r/20210417112952.8516-3-jbx6244@gmail.com Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2021-05-10ARM: dts: rockchip: Fix power-controller node names for rk3066aElaine Zhang1-3/+3
Use more generic names (as recommended in the device tree specification or the binding documentation) Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com> Reviewed-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Signed-off-by: Johan Jonker <jbx6244@gmail.com> Link: https://lore.kernel.org/r/20210417112952.8516-2-jbx6244@gmail.com Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2021-05-10ARM: dts: sun8i: r40: add devicetree for Forlinx FETA40i-C & OKA40i-CIvan Uvarov3-0/+310
The FETA40i-C is a SoM by Forlinx based on the Allwinner R40/A40i. SoM specifications: - SoC: R40 or A40i - PMIC: AXP221S - RAM: 1GiB/2GiB DDR3 (dual-rank) - eMMC: 8GB, - Mates with carrier board via four 80-pin connectors (AXK6F80337YG). OKA40i-C is a carrier board by the same manufacturer for this SoM, whose main purpose is as a development board with a wide variety of peripherals: - Power: DC5V barrel or USB OTG or 4.2V Lipo battery - Video out: HDMI, TV out, LVDS - WiFi+Bluetooth: RL-UM02WBS-8723BU-V1.2 (802.11 b/g/n, BT V2.1/3.0/4.0) - Ethernet: 10/100Mbps - Storage: µSD, fullsize SD, eMMC (on SoM), SATA - USB: 3 x USB2.0 Host (2 via hub, 1 native), 1 x USB2.0 OTG (micro-B) - UART: RS232, RS485, 4 3.3v uarts (of which 2 have RTS/CTS) - Other I/O: SPI x2, TWI, SDIO header, GPIO header, JTAG header - Mini PCIe slot with sim holder for WLAN modem - Smart card holder - RTC (RX8010SJ) - Two user LEDs - Three user buttons (via KeyADC). This patch adds a devicetree for the aforementioned SoM and devboard. In order to reflect the modularity of this devboard and simplify adding support for future hardware based on the same SoM, the devicetree is split: Everything pertaining to the SoM itself is described in a separate .dtsi file, which is included by the devboard's .dts. Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Ivan Uvarov <i.uvarov@cognitivepilot.com> 3 files changed, 310 insertions(+) Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://lore.kernel.org/r/20210407111428.3755684-6-i.uvarov@cognitivepilot.com
2021-05-10ARM: dts: sun8i: r40: add pinmux settings for MMC3 and UARTs 2, 4, 5&7Ivan Uvarov1-0/+41
The Forlinx OKA40i-C devboard makes use of UARTs 0,2,3,4,5 and 7 of the R40 SoC, of which UART 0 is connected to an RS232 converter, UART 5 routed to an RS485 converter, and the rest broken out directly via labeled headers. The board also contains a micro-SD slot connected to SDC3. This patch adds settings to R40's pinmux node for MMC3 and those UARTs that were not already mapped, which would allow us to make use of all available UARTs and the micro-SD slot on this board in a further patch. Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Ivan Uvarov <i.uvarov@cognitivepilot.com> 1 file changed, 41 insertions(+) Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://lore.kernel.org/r/20210407111428.3755684-3-i.uvarov@cognitivepilot.com
2021-05-10ARM: dts: sun8i: r40: add /omit-if-no-ref/ to pinmux nodes for UARTs 0&3Ivan Uvarov1-0/+3
This patch adds the /omit-if-no-ref/ keyword to the pio nodes for UART0 and UART3 pins of the R40 SoC, which would reduce the fdt size on boards which do not use these UARTs. Signed-off-by: Ivan Uvarov <i.uvarov@cognitivepilot.com> 1 file changed, 3 insertions(+) Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://lore.kernel.org/r/20210407111428.3755684-2-i.uvarov@cognitivepilot.com
2021-05-10ARM: dts: rockchip: Remove useless interrupt-names on IOMMU node on rk3036Benjamin Gaignard1-1/+0
Remove useless interrupt-names property for IOMMU node Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com> Link: https://lore.kernel.org/r/20210507090232.233049-5-benjamin.gaignard@collabora.com Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2021-05-10ARM: dts: rockchip: Fix IOMMU nodes properties on rk322xBenjamin Gaignard1-7/+3
Add '#" to iommu-cells properties. Remove useless interrupt-names properties Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com> Link: https://lore.kernel.org/r/20210507090232.233049-4-benjamin.gaignard@collabora.com Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2021-05-10ARM: dts: rockchip: Fix the timer clocks orderEzequiel Garcia2-6/+6
Fixed order is the device-tree convention. The timer driver currently gets clocks by name, so no changes are needed there. Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Link: https://lore.kernel.org/r/20210506111136.3941-3-ezequiel@collabora.com Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2021-05-10ARM: dts: rockchip: fix pinctrl sleep nodename for rk3036-kylin and rk3288Johan Jonker2-2/+2
A test with the command below aimed at powerpc generates notifications in the Rockchip ARM tree. Fix pinctrl "sleep" nodename by renaming it to "suspend" for rk3036-kylin and rk3288 make ARCH=arm dtbs_check DT_SCHEMA_FILES=Documentation/devicetree/bindings/powerpc/sleep.yaml Signed-off-by: Johan Jonker <jbx6244@gmail.com> Link: https://lore.kernel.org/r/20210126110221.10815-1-jbx6244@gmail.com Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2021-05-10ARM: dts: rockchip: Fix thermal sensor cells o rk322xEzequiel Garcia1-1/+1
The number of cells to be used with a thermal sensor specifier must be "1". Fix this. Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de> Link: https://lore.kernel.org/r/20210506175514.168365-2-ezequiel@collabora.com
2021-05-10ARM: dts: gemini: use the right rtc compatibleCorentin Labbe1-1/+1
The rtc compatible was not following the dt-binding. Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-05-10ARM: dts: gemini: add device_type on pciCorentin Labbe1-0/+1
Fixes DT warning on pci node by adding the missing device_type. Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-05-10ARM: dts: gemini-rut1xx: remove duplicate ethernet nodeCorentin Labbe1-12/+0
Two ethernet node was added by commit 95220046a62c ("ARM: dts: Add ethernet to a bunch of platforms") and commit d6d0cef55e5b ("ARM: dts: Add the FOTG210 USB host to Gemini boards") This patch removes the duplicate one. Fixes: d6d0cef55e5b ("ARM: dts: Add the FOTG210 USB host to Gemini boards") Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-05-10ARM: dts: gemini: rename mdio to the right nameCorentin Labbe5-5/+5
ethernet-phy is not the right name for mdio, fix it. Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-05-08Merge tag 'kbuild-v5.13-2' of ↵Linus Torvalds1-7/+0
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull more Kbuild updates from Masahiro Yamada: - Convert sh and sparc to use generic shell scripts to generate the syscall headers - refactor .gitignore files - Update kernel/config_data.gz only when the content of the .config is really changed, which avoids the unneeded re-link of vmlinux - move "remove stale files" workarounds to scripts/remove-stale-files - suppress unused-but-set-variable warnings by default for Clang as well - fix locale setting LANG=C to LC_ALL=C - improve 'make distclean' - always keep intermediate objects from scripts/link-vmlinux.sh - move IF_ENABLED out of <linux/kconfig.h> to make it self-contained - misc cleanups * tag 'kbuild-v5.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (25 commits) linux/kconfig.h: replace IF_ENABLED() with PTR_IF() in <linux/kernel.h> kbuild: Don't remove link-vmlinux temporary files on exit/signal kbuild: remove the unneeded comments for external module builds kbuild: make distclean remove tag files in sub-directories kbuild: make distclean work against $(objtree) instead of $(srctree) kbuild: refactor modname-multi by using suffix-search kbuild: refactor fdtoverlay rule kbuild: parameterize the .o part of suffix-search arch: use cross_compiling to check whether it is a cross build or not kbuild: remove ARCH=sh64 support from top Makefile .gitignore: prefix local generated files with a slash kbuild: replace LANG=C with LC_ALL=C Makefile: Move -Wno-unused-but-set-variable out of GCC only block kbuild: add a script to remove stale generated files kbuild: update config_data.gz only when the content of .config is changed .gitignore: ignore only top-level modules.builtin .gitignore: move tags and TAGS close to other tag files kernel/.gitgnore: remove stale timeconst.h and hz.bc usr/include: refactor .gitignore genksyms: fix stale comment ...
2021-05-07Merge branch 'akpm' (patches from Andrew)Linus Torvalds10-11/+13
Merge yet more updates from Andrew Morton: "This is everything else from -mm for this merge window. 90 patches. Subsystems affected by this patch series: mm (cleanups and slub), alpha, procfs, sysctl, misc, core-kernel, bitmap, lib, compat, checkpatch, epoll, isofs, nilfs2, hpfs, exit, fork, kexec, gcov, panic, delayacct, gdb, resource, selftests, async, initramfs, ipc, drivers/char, and spelling" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (90 commits) mm: fix typos in comments mm: fix typos in comments treewide: remove editor modelines and cruft ipc/sem.c: spelling fix fs: fat: fix spelling typo of values kernel/sys.c: fix typo kernel/up.c: fix typo kernel/user_namespace.c: fix typos kernel/umh.c: fix some spelling mistakes include/linux/pgtable.h: few spelling fixes mm/slab.c: fix spelling mistake "disired" -> "desired" scripts/spelling.txt: add "overflw" scripts/spelling.txt: Add "diabled" typo scripts/spelling.txt: add "overlfow" arm: print alloc free paths for address in registers mm/vmalloc: remove vwrite() mm: remove xlate_dev_kmem_ptr() drivers/char: remove /dev/kmem for good mm: fix some typos and code style problems ipc/sem.c: mundane typo fixes ...
2021-05-07arm: print alloc free paths for address in registersManinder Singh3-0/+13
In case of a use after free kernel oops, the freeing path of the object is required to debug futher. In most of cases the object address is present in one of the registers. Thus check the register's address and if it belongs to slab, print its alloc and free path. e.g. in the below issue register r6 belongs to slab, and a use after free issue occurred on one of its dereferenced values: Unable to handle kernel paging request at virtual address 6b6b6b6f .... pc : [<c0538afc>] lr : [<c0465674>] psr: 60000013 sp : c8927d40 ip : ffffefff fp : c8aa8020 r10: c8927e10 r9 : 00000001 r8 : 00400cc0 r7 : 00000000 r6 : c8ab0180 r5 : c1804a80 r4 : c8aa8008 r3 : c1a5661c r2 : 00000000 r1 : 6b6b6b6b r0 : c139bf48 ..... Register r6 information: slab kmalloc-64 start c8ab0140 data offset 64 pointer offset 0 size 64 allocated at meminfo_proc_show+0x40/0x4fc meminfo_proc_show+0x40/0x4fc seq_read_iter+0x18c/0x4c4 proc_reg_read_iter+0x84/0xac generic_file_splice_read+0xe8/0x17c splice_direct_to_actor+0xb8/0x290 do_splice_direct+0xa0/0xe0 do_sendfile+0x2d0/0x438 sys_sendfile64+0x12c/0x140 ret_fast_syscall+0x0/0x58 0xbeeacde4 Free path: meminfo_proc_show+0x5c/0x4fc seq_read_iter+0x18c/0x4c4 proc_reg_read_iter+0x84/0xac generic_file_splice_read+0xe8/0x17c splice_direct_to_actor+0xb8/0x290 do_splice_direct+0xa0/0xe0 do_sendfile+0x2d0/0x438 sys_sendfile64+0x12c/0x140 ret_fast_syscall+0x0/0x58 0xbeeacde4 Link: https://lkml.kernel.org/r/1615891032-29160-3-git-send-email-maninder1.s@samsung.com Co-developed-by: Vaneet Narang <v.narang@samsung.com> Signed-off-by: Vaneet Narang <v.narang@samsung.com> Signed-off-by: Maninder Singh <maninder1.s@samsung.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Lameter <cl@linux.com> Cc: David Rientjes <rientjes@google.com> Cc: Dmitry Safonov <0x7f454c46@gmail.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Paul E. McKenney <paulmck@kernel.org> Cc: Pekka Enberg <penberg@kernel.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-05-07mm: remove xlate_dev_kmem_ptr()David Hildenbrand1-5/+0
Since /dev/kmem has been removed, let's remove the xlate_dev_kmem_ptr() leftovers. Link: https://lkml.kernel.org/r/20210324102351.6932-3-david@redhat.com Signed-off-by: David Hildenbrand <david@redhat.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Brian Cain <bcain@codeaurora.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com> Cc: Helge Deller <deller@gmx.de> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Rich Felker <dalias@libc.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Arnd Bergmann <arnd@arndb.de> Cc: David Hildenbrand <david@redhat.com> Cc: Krzysztof Kozlowski <krzk@kernel.org> Cc: Mikulas Patocka <mpatocka@redhat.com> Cc: Luc Van Oostenryck <luc.vanoostenryck@gmail.com> Cc: Mike Rapoport <rppt@kernel.org> Cc: Palmer Dabbelt <palmerdabbelt@google.com> Cc: Luis Chamberlain <mcgrof@kernel.org> Cc: Greentime Hu <green.hu@gmail.com> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Jiaxun Yang <jiaxun.yang@flygoat.com> Cc: "Peter Zijlstra (Intel)" <peterz@infradead.org> Cc: Christophe Leroy <christophe.leroy@csgroup.eu> Cc: Gerald Schaefer <gerald.schaefer@linux.ibm.com> Cc: Niklas Schnelle <schnelle@linux.ibm.com> Cc: Pierre Morel <pmorel@linux.ibm.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-05-07drivers/char: remove /dev/kmem for goodDavid Hildenbrand6-6/+0
Patch series "drivers/char: remove /dev/kmem for good". Exploring /dev/kmem and /dev/mem in the context of memory hot(un)plug and memory ballooning, I started questioning the existence of /dev/kmem. Comparing it with the /proc/kcore implementation, it does not seem to be able to deal with things like a) Pages unmapped from the direct mapping (e.g., to be used by secretmem) -> kern_addr_valid(). virt_addr_valid() is not sufficient. b) Special cases like gart aperture memory that is not to be touched -> mem_pfn_is_ram() Unless I am missing something, it's at least broken in some cases and might fault/crash the machine. Looks like its existence has been questioned before in 2005 and 2010 [1], after ~11 additional years, it might make sense to revive the discussion. CONFIG_DEVKMEM is only enabled in a single defconfig (on purpose or by mistake?). All distributions disable it: in Ubuntu it has been disabled for more than 10 years, in Debian since 2.6.31, in Fedora at least starting with FC3, in RHEL starting with RHEL4, in SUSE starting from 15sp2, and OpenSUSE has it disabled as well. 1) /dev/kmem was popular for rootkits [2] before it got disabled basically everywhere. Ubuntu documents [3] "There is no modern user of /dev/kmem any more beyond attackers using it to load kernel rootkits.". RHEL documents in a BZ [5] "it served no practical purpose other than to serve as a potential security problem or to enable binary module drivers to access structures/functions they shouldn't be touching" 2) /proc/kcore is a decent interface to have a controlled way to read kernel memory for debugging puposes. (will need some extensions to deal with memory offlining/unplug, memory ballooning, and poisoned pages, though) 3) It might be useful for corner case debugging [1]. KDB/KGDB might be a better fit, especially, to write random memory; harder to shoot yourself into the foot. 4) "Kernel Memory Editor" [4] hasn't seen any updates since 2000 and seems to be incompatible with 64bit [1]. For educational purposes, /proc/kcore might be used to monitor value updates -- or older kernels can be used. 5) It's broken on arm64, and therefore, completely disabled there. Looks like it's essentially unused and has been replaced by better suited interfaces for individual tasks (/proc/kcore, KDB/KGDB). Let's just remove it. [1] https://lwn.net/Articles/147901/ [2] https://www.linuxjournal.com/article/10505 [3] https://wiki.ubuntu.com/Security/Features#A.2Fdev.2Fkmem_disabled [4] https://sourceforge.net/projects/kme/ [5] https://bugzilla.redhat.com/show_bug.cgi?id=154796 Link: https://lkml.kernel.org/r/20210324102351.6932-1-david@redhat.com Link: https://lkml.kernel.org/r/20210324102351.6932-2-david@redhat.com Signed-off-by: David Hildenbrand <david@redhat.com> Acked-by: Michal Hocko <mhocko@suse.com> Acked-by: Kees Cook <keescook@chromium.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "Alexander A. Klimov" <grandmaster@al2klimov.de> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Andrey Zhizhikin <andrey.zhizhikin@leica-geosystems.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Brian Cain <bcain@codeaurora.org> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Christophe Leroy <christophe.leroy@csgroup.eu> Cc: Chris Zankel <chris@zankel.net> Cc: Corentin Labbe <clabbe@baylibre.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Gerald Schaefer <gerald.schaefer@linux.ibm.com> Cc: Greentime Hu <green.hu@gmail.com> Cc: Gregory Clement <gregory.clement@bootlin.com> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Helge Deller <deller@gmx.de> Cc: Hillf Danton <hdanton@sina.com> Cc: huang ying <huang.ying.caritas@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com> Cc: James Troup <james.troup@canonical.com> Cc: Jiaxun Yang <jiaxun.yang@flygoat.com> Cc: Jonas Bonn <jonas@southpole.se> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Kairui Song <kasong@redhat.com> Cc: Krzysztof Kozlowski <krzk@kernel.org> Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Cc: Liviu Dudau <liviu.dudau@arm.com> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Luc Van Oostenryck <luc.vanoostenryck@gmail.com> Cc: Luis Chamberlain <mcgrof@kernel.org> Cc: Matthew Wilcox <willy@infradead.org> Cc: Matt Turner <mattst88@gmail.com> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Mike Rapoport <rppt@kernel.org> Cc: Mikulas Patocka <mpatocka@redhat.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Niklas Schnelle <schnelle@linux.ibm.com> Cc: Oleksiy Avramchenko <oleksiy.avramchenko@sonymobile.com> Cc: openrisc@lists.librecores.org Cc: Palmer Dabbelt <palmerdabbelt@google.com> Cc: Paul Mackerras <paulus@samba.org> Cc: "Pavel Machek (CIP)" <pavel@denx.de> Cc: Pavel Machek <pavel@ucw.cz> Cc: "Peter Zijlstra (Intel)" <peterz@infradead.org> Cc: Pierre Morel <pmorel@linux.ibm.com> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Richard Henderson <rth@twiddle.net> Cc: Rich Felker <dalias@libc.org> Cc: Robert Richter <rric@kernel.org> Cc: Rob Herring <robh@kernel.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Cc: sparclinux@vger.kernel.org Cc: Stafford Horne <shorne@gmail.com> Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Sudeep Holla <sudeep.holla@arm.com> Cc: Theodore Dubois <tblodt@icloud.com> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: William Cohen <wcohen@redhat.com> Cc: Xiaoming Ni <nixiaoming@huawei.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-05-06Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-armLinus Torvalds27-454/+246
Pull ARM updates from Russell King: - Fix BSS size calculation for LLVM - Improve robustness of kernel entry around v7_invalidate_l1 - Fix and update kprobes assembly - Correct breakpoint overflow handler check - Pause function graph tracer when suspending a CPU - Switch to generic syscallhdr.sh and syscalltbl.sh - Remove now unused set_kernel_text_r[wo] functions - Updates for ptdump (__init marking and using DEFINE_SHOW_ATTRIBUTE) - Fix for interrupted SMC (secure) calls - Remove Compaq Personal Server platform * tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: ARM: footbridge: remove personal server platform ARM: 9075/1: kernel: Fix interrupted SMC calls ARM: 9074/1: ptdump: convert to DEFINE_SHOW_ATTRIBUTE ARM: 9073/1: ptdump: add __init section marker to three functions ARM: 9072/1: mm: remove set_kernel_text_r[ow]() ARM: 9067/1: syscalls: switch to generic syscallhdr.sh ARM: 9068/1: syscalls: switch to generic syscalltbl.sh ARM: 9066/1: ftrace: pause/unpause function graph tracer in cpu_suspend() ARM: 9064/1: hw_breakpoint: Do not directly check the event's overflow_handler hook ARM: 9062/1: kprobes: rewrite test-arm.c in UAL ARM: 9061/1: kprobes: fix UNPREDICTABLE warnings ARM: 9060/1: kexec: Remove unused kexec_reinit callback ARM: 9059/1: cache-v7: get rid of mini-stack ARM: 9058/1: cache-v7: refactor v7_invalidate_l1 to avoid clobbering r5/r6 ARM: 9057/1: cache-v7: add missing ISB after cache level selection ARM: 9056/1: decompressor: fix BSS size calculation for LLVM ld.lld
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