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2021-05-21ARM: omap2plus_defconfig: Add LP5523 LED driverSicelo A. Mhlongo1-0/+2
The Nokia N900 has an LP5523 driving the RGB LED and the 6 keyboard LEDS. Enable support for it in omap2plus_defconfig. Signed-off-by: Sicelo A. Mhlongo <absicsz@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2021-05-21ARM: omap2plus_defconfig: Add WL1251 and WEXT modulesSicelo A. Mhlongo1-0/+3
The Nokia N900 uses a TI WL1251 chip for WiFi. Enable support for it as a loadable module. In order to be usable and connect to networks, it needs wireless extensions, so enable WEXT support in the kernel. Signed-off-by: Sicelo A. Mhlongo <absicsz@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2021-05-21ARM: OMAP2+: remove omap2_set_globals_control()Dario Binacchi2-6/+0
The function is no longer used, so let's remove it. Signed-off-by: Dario Binacchi <dariobin@libero.it> Signed-off-by: Tony Lindgren <tony@atomide.com>
2021-05-21ARM: OMAP2+: CM: remove omap2_set_globals_cm()Dario Binacchi2-14/+0
The function is no longer used, so let's remove it. Signed-off-by: Dario Binacchi <dariobin@libero.it> Signed-off-by: Tony Lindgren <tony@atomide.com>
2021-05-21ARM: OMAP1: Remove leading spaces in KconfigJuerg Haefliger1-6/+6
Remove leading spaces before tabs in Kconfig file(s) by running the following command: $ find arch/arm/mach-omap1 -name 'Kconfig*' | \ xargs sed -r -i 's/^[ ]+\t/\t/' Signed-off-by: Juerg Haefliger <juergh@canonical.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2021-05-21Merge tag 'arm-soc-fixes-5.13-1' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull ARM SoC fixes from Arnd Bergmann: "Only a small number of fixes so far, including some that I had applied during the merge window, so this is based on the original merge of the other branches. - The largest change is a fix for a reference counting bug in the AMD TEE driver. - Neil Armstrong now co-maintains Amlogic SoC support - Two build warning fixes for renesas device tree files - A sign expansion bug for optee - A DT binding fix for a mismerge" * tag 'arm-soc-fixes-5.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: ARM: npcm: wpcm450: select interrupt controller driver MAINTAINERS: ARM/Amlogic SoCs: add Neil as primary maintainer tee: amdtee: unload TA only when its refcount becomes 0 dt-bindings: nvmem: mediatek: remove duplicate mt8192 line firmware: arm_scmi: Remove duplicate declaration of struct scmi_protocol_handle firmware: arm_scpi: Prevent the ternary sign expansion bug arm64: dts: renesas: Add port@0 node for all CSI-2 nodes to dtsi arm64: dts: renesas: aistarvision-mipi-adapter-2.1: Fix CSI40 ports
2021-05-20Merge tag 'quota_for_v5.13-rc3' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs Pull quota fixes from Jan Kara: "The most important part in the pull is disablement of the new syscall quotactl_path() which was added in rc1. The reason is some people at LWN discussion pointed out dirfd would be useful for this path based syscall and Christian Brauner agreed. Without dirfd it may be indeed problematic for containers. So let's just disable the syscall for now when it doesn't have users yet so that we have more time to mull over how to best specify the filesystem we want to work on" * tag 'quota_for_v5.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: quota: Disable quotactl_path syscall quota: Use 'hlist_for_each_entry' to simplify code
2021-05-19media: ARM: dts: sama5d4: enable Hantro G1 VDECEmil Velikov1-0/+7
Add the SAMA5D4 VDEC module which comprises Hantro G1 video decoder core. Cc: Rob Herring <robh+dt@kernel.org> Cc: Frank Rowand <frowand.list@gmail.com> Cc: devicetree@vger.kernel.org Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: Emil Velikov <emil.velikov@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-05-19ARM: dts: gemini: convert obsolete SPI propertiesCorentin Labbe3-9/+9
gpio-xxx are obsoletes properties, convert them to xxx-gpios. Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-05-18ARM: dts: sun8i: r40: Add timer nodeJernej Skrabec1-0/+12
Allwinner R40 has a timer. Add a node for it. Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://lore.kernel.org/r/20210510163647.2731675-1-jernej.skrabec@gmail.com
2021-05-18ARM: dts: sun8i: V3: add I2S interface to V3 dtsTobias Schramm1-0/+26
The Allwinner V3 SoC features an I2S interface. The I2S peripheral is identical to that in the Allwinner H3 SoC. This commit adds it to the Allwinner V3 dts. Signed-off-by: Tobias Schramm <t.schramm@manjaro.org> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://lore.kernel.org/r/20210514134405.2097464-8-t.schramm@manjaro.org
2021-05-18ARM: dts: sun8i: V3: add codec analog frontend to V3 dtsTobias Schramm1-0/+5
The Allwinner V3 SoC has a different analog codec frontend than the V3s SoC. The frontend used on the V3 SoC is compatible with the on used in the Allwinner H3 SoC. This patch adds the corresponding node to the Allwinner V3 dtsi. Signed-off-by: Tobias Schramm <t.schramm@manjaro.org> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://lore.kernel.org/r/20210514134405.2097464-6-t.schramm@manjaro.org
2021-05-18ARM: dts: sun8i: v3s: add analog codec and frontend to v3s dtsTobias Schramm1-0/+19
The Allwinner V3s and V3 SoCs feature an integrated analog audio codec. Additionally both have an analog frontend with mixers and amplifiers for the codec. This commit adds both, the analog codec and its frontend to the V3s dtsi. Signed-off-by: Tobias Schramm <t.schramm@manjaro.org> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://lore.kernel.org/r/20210514134405.2097464-4-t.schramm@manjaro.org
2021-05-18ARM: dts: sun8i: v3s: add DMA properties to peripherals supporting DMATobias Schramm1-0/+10
This commit adds DMA properties to all peripherals supporting DMA on the Allwinner V3s, enabling accelerated data transfer to them. Signed-off-by: Tobias Schramm <t.schramm@manjaro.org> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://lore.kernel.org/r/20210514134405.2097464-3-t.schramm@manjaro.org
2021-05-18ARM: dts: sun8i: v3s: add DMA controller to v3s dtsTobias Schramm1-0/+10
The Allwinner V3s and V3 feature a DMA controller. This commit adds it to the V3s dtsi. Signed-off-by: Tobias Schramm <t.schramm@manjaro.org> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://lore.kernel.org/r/20210514134405.2097464-2-t.schramm@manjaro.org
2021-05-18ARM: dts: sun8i: v3s: add pwm controller to v3s dtsTobias Schramm1-0/+9
The Allwinner V3s and V3 SoCs feature a pwm controller identical to the one used in the Allwinner A20. This commit adds it to the V3s dtsi. Signed-off-by: Tobias Schramm <t.schramm@manjaro.org> Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://lore.kernel.org/r/20210513203527.2072090-3-t.schramm@manjaro.org
2021-05-18ARM: dts: href: Mount matrices for TVK R2Linus Walleij1-0/+6
This adds the proper mounting matrices for the TVK R2 board. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-05-18ARM: npcm: wpcm450: select interrupt controller driverJonathan Neuschäfer1-0/+1
The interrupt controller driver is necessary in order to have a functioning Linux system on WPCM450. Select it in mach-npcm/Kconfig. Fixes: ece3fe93e8f4 ("ARM: npcm: Introduce Nuvoton WPCM450 SoC") Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Signed-off-by: Joel Stanley <joel@jms.id.au> Reviewed-by: Joel Stanley <joel@jms.id.au> Link: https://lore.kernel.org/r/20210513165627.1767093-1-j.neuschaefer@gmx.net Link: https://lore.kernel.org/r/20210518071514.604492-1-joel@jms.id.au' Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-05-18ARM: dts: ux500: Fix some compatible stringsLinus Walleij3-4/+6
The Golden and Skomer phones have BCM4334 WLAN+BT chips, so make the compatible strings reflect the new available bindings for these. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-05-18ARM: OMAP2+: Fix build warning when mmc_omap is not builtYongqiang Liu1-1/+1
GCC reports the following warning with W=1: arch/arm/mach-omap2/board-n8x0.c:325:19: warning: variable 'index' set but not used [-Wunused-but-set-variable] 325 | int bit, *openp, index; | ^~~~~ Fix this by moving CONFIG_MMC_OMAP to cover the rest codes in the n8x0_mmc_callback(). Signed-off-by: Yongqiang Liu <liuyongqiang13@huawei.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2021-05-18ARM: OMAP1: isp1301-omap: Add missing gpiod_add_lookup_table functionMaciej Falkowski1-1/+3
The gpiod table was added without any usage making it unused as reported by Clang compilation from omap1_defconfig on linux-next: arch/arm/mach-omap1/board-h2.c:347:34: warning: unused variable 'isp1301_gpiod_table' [-Wunused-variable] static struct gpiod_lookup_table isp1301_gpiod_table = { ^ 1 warning generated. The patch adds the missing gpiod_add_lookup_table() function. Signed-off-by: Maciej Falkowski <maciej.falkowski9@gmail.com> Fixes: f3ef38160e3d ("usb: isp1301-omap: Convert to use GPIO descriptors") Link: https://github.com/ClangBuiltLinux/linux/issues/1325 Signed-off-by: Tony Lindgren <tony@atomide.com>
2021-05-18ARM: OMAP1: Fix use of possibly uninitialized irq variableMaciej Falkowski1-3/+7
The current control flow of IRQ number assignment to `irq` variable allows a request of IRQ of unspecified value, generating a warning under Clang compilation with omap1_defconfig on linux-next: arch/arm/mach-omap1/pm.c:656:11: warning: variable 'irq' is used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized] else if (cpu_is_omap16xx()) ^~~~~~~~~~~~~~~~~ ./arch/arm/mach-omap1/include/mach/soc.h:123:30: note: expanded from macro 'cpu_is_omap16xx' ^~~~~~~~~~~~~ arch/arm/mach-omap1/pm.c:658:18: note: uninitialized use occurs here if (request_irq(irq, omap_wakeup_interrupt, 0, "peripheral wakeup", ^~~ arch/arm/mach-omap1/pm.c:656:7: note: remove the 'if' if its condition is always true else if (cpu_is_omap16xx()) ^~~~~~~~~~~~~~~~~~~~~~ arch/arm/mach-omap1/pm.c:611:9: note: initialize the variable 'irq' to silence this warning int irq; ^ = 0 1 warning generated. The patch provides a default value to the `irq` variable along with a validity check. Signed-off-by: Maciej Falkowski <maciej.falkowski9@gmail.com> Link: https://github.com/ClangBuiltLinux/linux/issues/1324 Signed-off-by: Tony Lindgren <tony@atomide.com>
2021-05-18ARM: dts: ux500: Drop drdy pin assignment from magnetometerLinus Walleij1-1/+0
This magnetometer can not select which line provided the outgoing IRQ so drop it, the DT bindings will complain too. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-05-18ARM: dts: ux500: Fix orientation of accelerometerLinus Walleij1-0/+3
This adds a mounting matrix to the accelerometer on the TVK1281618 R3. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-05-18ARM: dts: ux500: Rename gpio-controller nodeSebastian Reichel5-5/+5
Rename the AB8500 gpio controller node from ab8500-gpio to ab8500-gpiocontroller, since -gpio is a common suffix for gpio consumers. Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-05-18ARM: dts: ux500: Fix interrupt cellsSebastian Reichel2-24/+24
Fix interrupt cells in DT AB8500/AB8505 source files. The compiled DTB files will stay the same. Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-05-17Merge tag 'irqchip-fixes-5.13-1' of ↵Thomas Gleixner1-1/+6
git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent Pull irqchip fixes from Marc Zyngier: - Fix PXA Mainstone CPLD irq allocation in legacy mode - Restrict the Apple AIC controller to the Apple platform - Remove a few supperfluous messages on devm_ioremap_resource() failure Link: https://lore.kernel.org/r/20210516122217.13234-1-maz@kernel.org
2021-05-17quota: Disable quotactl_path syscallJan Kara1-1/+1
In commit fa8b90070a80 ("quota: wire up quotactl_path") we have wired up new quotactl_path syscall. However some people in LWN discussion have objected that the path based syscall is missing dirfd and flags argument which is mostly standard for contemporary path based syscalls. Indeed they have a point and after a discussion with Christian Brauner and Sascha Hauer I've decided to disable the syscall for now and update its API. Since there is no userspace currently using that syscall and it hasn't been released in any major release, we should be fine. CC: Christian Brauner <christian.brauner@ubuntu.com> CC: Sascha Hauer <s.hauer@pengutronix.de> Link: https://lore.kernel.org/lkml/20210512153621.n5u43jsytbik4yze@wittgenstein Signed-off-by: Jan Kara <jack@suse.cz>
2021-05-17ARM: shmobile: defconfig: Refresh for v5.13-rc1Geert Uytterhoeven1-1/+0
Refresh the defconfig for Renesas ARM systems: - Drop CONFIG_RESET_CONTROLLER=y (auto-enabled since commit b4d86f37eacb7246 ("mmc: renesas_sdhi: do hard reset if possible")). Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/debe6340e9deb2f13f908238f27b62ed7b6005a0.1620806548.git.geert+renesas@glider.be
2021-05-15ARM: dts: rockchip: move and restyle grf nodes rk3066/rk3188Johan Jonker3-49/+59
With grf.txt converted to YAML a lot of compatibles did not have 'simple-mfd' added in the old binding. That implies that if you have child nodes they need to be documented. Make the new layout fit for rk3066/rk3188, move and restyle the grf nodes. Remove rockchip,grf from usbphy node. Add "#phy-cells", because it is a required property by phy-provider.yaml With the conversion of syscon.yaml minItems for compatibles was set to 2. Current Rockchip rk3xxx.dtsi file only uses "syscon" for the grf registers. Add "syscon", "simple-mfd" compatible for rk3066/rk3188 to reduce notifications produced with: make ARCH=arm dtbs_check DT_SCHEMA_FILES=Documentation/devicetree/bindings/mfd/syscon.yaml Changed compatibles: "rockchip,rk3066-grf", "syscon", "simple-mfd" "rockchip,rk3188-grf", "syscon", "simple-mfd" Signed-off-by: Johan Jonker <jbx6244@gmail.com> Link: https://lore.kernel.org/r/20210512122346.9463-4-jbx6244@gmail.com Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2021-05-14ARM: dts: ixp4xx: Add beeper to the NSLU2Linus Walleij1-0/+5
This adds the beeper GPIO to the NSLU2 completing the board support. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-05-14xen/swiotlb: check if the swiotlb has already been initializedStefano Stabellini1-1/+7
xen_swiotlb_init calls swiotlb_late_init_with_tbl, which fails with -ENOMEM if the swiotlb has already been initialized. Add an explicit check io_tlb_default_mem != NULL at the beginning of xen_swiotlb_init. If the swiotlb is already initialized print a warning and return -EEXIST. On x86, the error propagates. On ARM, we don't actually need a special swiotlb buffer (yet), any buffer would do. So ignore the error and continue. CC: boris.ostrovsky@oracle.com CC: jgross@suse.com Signed-off-by: Stefano Stabellini <stefano.stabellini@xilinx.com> Reviewed-by: Boris Ostrovsky <boris.ostrvsky@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20210512201823.1963-3-sstabellini@kernel.org Signed-off-by: Juergen Gross <jgross@suse.com>
2021-05-14xen/arm: move xen_swiotlb_detect to arm/swiotlb-xen.hStefano Stabellini1-12/+0
Move xen_swiotlb_detect to a static inline function to make it available to !CONFIG_XEN builds. CC: boris.ostrovsky@oracle.com CC: jgross@suse.com Signed-off-by: Stefano Stabellini <stefano.stabellini@xilinx.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Juergen Gross <jgross@suse.com> Link: https://lore.kernel.org/r/20210512201823.1963-1-sstabellini@kernel.org Signed-off-by: Juergen Gross <jgross@suse.com>
2021-05-14ARM: dts: rockchip: rename vcc_stdby node name for rk3066a-rayeager.dtsJohan Jonker1-1/+1
A test with the command below gives this error: /arch/arm/boot/dts/rk3066a-rayeager.dt.yaml: /: '5v-stdby-regulator' does not match any of the regexes: '.*-names$', '.*-supply$', '^#.*-cells$', '^#[a-zA-Z0-9,+\\-._]{0,63}$', '^[a-zA-Z][a-zA-Z0-9,+\\-._]{0,63}$', '^[a-zA-Z][a-zA-Z0-9,+\\-._]{0,63}@[0-9a-fA-F]+(,[0-9a-fA-F]+)*$', '^__.*__$', 'pinctrl-[0-9]+' A node name shouldn't start with a number, so change it to 'stdby-regulator'. make ARCH=arm dtbs_check DT_SCHEMA_FILES=~/.local/lib/python3.5/site-packages/dtschema /schemas/dt-core.yaml Signed-off-by: Johan Jonker <jbx6244@gmail.com> Link: https://lore.kernel.org/r/20210510192054.8876-1-jbx6244@gmail.com Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2021-05-14ARM: dts: rockchip: Remove more clock-names from PWM nodesJohan Jonker1-4/+0
A test with the command below gives this error: /arch/arm/boot/dts/rk3228-evb.dt.yaml: pwm@110b0020: clock-names: ['pwm'] is too short Devices with only one PWM clock use it to both to derive the functional clock for the device and as the bus clock. The driver does not need "clock-names" to get a handle, so remove them all. make ARCH=arm dtbs_check DT_SCHEMA_FILES=Documentation/devicetree/bindings/pwm/pwm-rockchip.yaml Signed-off-by: Johan Jonker <jbx6244@gmail.com> Link: https://lore.kernel.org/r/20210510172911.6763-1-jbx6244@gmail.com Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2021-05-14crypto: arm - use a pattern rule for generating *.S filesMasahiro Yamada1-7/+1
Unify similar build rules. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-05-14crypto: arm - generate *.S by Perl at build time instead of shipping themMasahiro Yamada4-5848/+3
Generate *.S by Perl like arch/{mips,x86}/crypto/Makefile. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-05-13ARM: dts: imx6q-dhcom: Add PU,VDD1P1,VDD2P5 regulatorsMarek Vasut1-0/+12
Per schematic, both PU and SOC regulator are supplied from LTC3676 SW1 via VDDSOC_IN rail, add the PU input. Both VDD1P1, VDD2P5 are supplied from LTC3676 SW2 via VDDHIGH_IN rail, add both inputs. While no instability or problems are currently observed, the regulators should be fully described in DT and that description should fully match the hardware, else this might lead to unforseen issues later. Fix this. Fixes: 52c7a088badd ("ARM: dts: imx6q: Add support for the DHCOM iMX6 SoM and PDK2") Reviewed-by: Fabio Estevam <festevam@gmail.com> Signed-off-by: Marek Vasut <marex@denx.de> Cc: Christoph Niedermaier <cniedermaier@dh-electronics.com> Cc: Fabio Estevam <festevam@gmail.com> Cc: Ludwig Zenz <lzenz@dh-electronics.com> Cc: NXP Linux Team <linux-imx@nxp.com> Cc: Shawn Guo <shawnguo@kernel.org> Cc: stable@vger.kernel.org Reviewed-by: Christoph Niedermaier <cniedermaier@dh-electronics.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-05-13ARM: imx: Initialize SoC ID on i.MX50Jonathan Neuschäfer1-0/+7
As on i.MX51 and i.MX53, initialize the SoC ID based on the SoC compatible string of the board. Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Reviewed-by: Fabio Estevam <festevam@gmail.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-05-13ARM: imx: pm-imx5: Fix references to imx5_cpu_suspend_infoJonathan Neuschäfer1-2/+2
The name of the struct, as defined in arch/arm/mach-imx/pm-imx5.c, is imx5_cpu_suspend_info. Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Reviewed-by: Fabio Estevam <festevam@gmail.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-05-13ARM: dts: imx6dl-yapp4: Configure the OLED display segment offsetMichal Vokáč1-0/+1
The imx6dl-yapp4 platform uses a GE-LX012864FWPP3N0000 OLED display. The display consist of a 128x64 OLED panel and a SSD1305 controller. The OLED panel resolution is 128x64 but the built-in controller default resolution is 132x64. To display properly a segment offset needs to be configured. Signed-off-by: Michal Vokáč <michal.vokac@ysoft.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-05-13ARM: dts: imx6dl-yapp4: Fix RGMII connection to QCA8334 switchMichal Vokáč1-1/+5
The FEC does not have a PHY so it should not have a phy-handle. It is connected to the switch at RGMII level so we need a fixed-link sub-node on both ends. This was not a problem until the qca8k.c driver was converted to PHYLINK by commit b3591c2a3661 ("net: dsa: qca8k: Switch to PHYLINK instead of PHYLIB"). That commit revealed the FEC configuration was not correct. Fixes: 87489ec3a77f ("ARM: dts: imx: Add Y Soft IOTA Draco, Hydra and Ursa boards") Cc: stable@vger.kernel.org Signed-off-by: Michal Vokáč <michal.vokac@ysoft.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-05-13ARM: dts: imx6: phyFLEX: Fix UART hardware flow controlPrimoz Fiser1-2/+3
Serial interface uart3 on phyFLEX board is capable of 5-wire connection including signals RTS and CTS for hardware flow control. Fix signals UART3_CTS_B and UART3_RTS_B padmux assignments and add missing property "uart-has-rtscts" to allow serial interface to be configured and used with the hardware flow control. Signed-off-by: Primoz Fiser <primoz.fiser@norik.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-05-12sched/core: Initialize the idle task with preemption disabledValentin Schneider1-1/+0
As pointed out by commit de9b8f5dcbd9 ("sched: Fix crash trying to dequeue/enqueue the idle thread") init_idle() can and will be invoked more than once on the same idle task. At boot time, it is invoked for the boot CPU thread by sched_init(). Then smp_init() creates the threads for all the secondary CPUs and invokes init_idle() on them. As the hotplug machinery brings the secondaries to life, it will issue calls to idle_thread_get(), which itself invokes init_idle() yet again. In this case it's invoked twice more per secondary: at _cpu_up(), and at bringup_cpu(). Given smp_init() already initializes the idle tasks for all *possible* CPUs, no further initialization should be required. Now, removing init_idle() from idle_thread_get() exposes some interesting expectations with regards to the idle task's preempt_count: the secondary startup always issues a preempt_disable(), requiring some reset of the preempt count to 0 between hot-unplug and hotplug, which is currently served by idle_thread_get() -> idle_init(). Given the idle task is supposed to have preemption disabled once and never see it re-enabled, it seems that what we actually want is to initialize its preempt_count to PREEMPT_DISABLED and leave it there. Do that, and remove init_idle() from idle_thread_get(). Secondary startups were patched via coccinelle: @begone@ @@ -preempt_disable(); ... cpu_startup_entry(CPUHP_AP_ONLINE_IDLE); Signed-off-by: Valentin Schneider <valentin.schneider@arm.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Acked-by: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20210512094636.2958515-1-valentin.schneider@arm.com
2021-05-12ARM: dts: ixp4xx: Create a proper expansion busLinus Walleij3-31/+48
The IXP4xx expansion bus is 24 bits (256 MB) that is memory mapped between 0x50000000-0x5fffffff usin a set of chip selects. The size of the windows is 16 or 32MB defined by the boot loader system configuration at runtime. Create a rudimentary simple-bus and move the flash memories to the expansion bus, inside the SoC. 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: ixp4xx: Add PCI hostsLinus Walleij5-0/+113
This adds a basic PCI host definition to the base device tree for IXP4xx and then further details it in the 42x and 43x device tree include, also the specific target devices NSLU2 and GW2358 get proper PCI swizzling defined. 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: exynos: enable PMIC wakeup from suspend on Odroid XU3/XU4 familyKrzysztof Kozlowski1-0/+1
The RTC on S2MPS11 PMIC on Odroid XU3/XU4 family of boards 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/20210420164943.11152-10-krzysztof.kozlowski@canonical.com
2021-05-11ARM: dts: exynos: enable PMIC wakeup from suspend on SMDK5420Krzysztof Kozlowski1-0/+1
The RTC on S2MPS11 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/20210420164943.11152-9-krzysztof.kozlowski@canonical.com
2021-05-11ARM: dts: exynos: enable PMIC wakeup from suspend on Arndale OctaKrzysztof Kozlowski1-0/+1
The RTC on S2MPS11 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/20210420164943.11152-8-krzysztof.kozlowski@canonical.com
2021-05-11ARM: dts: exynos: enable PMIC wakeup from suspend on P4 NoteKrzysztof 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/20210420164943.11152-7-krzysztof.kozlowski@canonical.com
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