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2019-08-13dt-bindings: Add PCIe supports-clkreq propertyVidya Sagar1-0/+5
Some host controllers need to know the existence of clkreq signal routing to downstream devices to be able to advertise low power features like ASPM L1 substates. Without clkreq signal routing being present, enabling ASPM L1 substates might lead to downstream devices being disconnected from the bus. Hence a new device tree property 'supports-clkreq' is added to make such host controllers aware of clkreq signal routing to downstream devices. Signed-off-by: Vidya Sagar <vidyas@nvidia.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Thierry Reding <treding@nvidia.com>
2019-08-13dt-bindings: PCI: designware: Add binding for CDM register checkVidya Sagar1-0/+5
Add support to enable CDM (Configuration Dependent Module) registers check for any data corruption. CDM registers include standard PCIe configuration space registers, Port Logic registers and iATU and DMA registers. Refer Section S.4 of Synopsys DesignWare Cores PCI Express Controller Databook Version 4.90a. Signed-off-by: Vidya Sagar <vidyas@nvidia.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Thierry Reding <treding@nvidia.com> Reviewed-by: Rob Herring <robh@kernel.org>
2019-08-13btf: expose BTF info through sysfsAndrii Nakryiko1-0/+17
Make .BTF section allocated and expose its contents through sysfs. /sys/kernel/btf directory is created to contain all the BTFs present inside kernel. Currently there is only kernel's main BTF, represented as /sys/kernel/btf/kernel file. Once kernel modules' BTFs are supported, each module will expose its BTF as /sys/kernel/btf/<module-name> file. Current approach relies on a few pieces coming together: 1. pahole is used to take almost final vmlinux image (modulo .BTF and kallsyms) and generate .BTF section by converting DWARF info into BTF. This section is not allocated and not mapped to any segment, though, so is not yet accessible from inside kernel at runtime. 2. objcopy dumps .BTF contents into binary file and subsequently convert binary file into linkable object file with automatically generated symbols _binary__btf_kernel_bin_start and _binary__btf_kernel_bin_end, pointing to start and end, respectively, of BTF raw data. 3. final vmlinux image is generated by linking this object file (and kallsyms, if necessary). sysfs_btf.c then creates /sys/kernel/btf/kernel file and exposes embedded BTF contents through it. This allows, e.g., libbpf and bpftool access BTF info at well-known location, without resorting to searching for vmlinux image on disk (location of which is not standardized and vmlinux image might not be even available in some scenarios, e.g., inside qemu during testing). Alternative approach using .incbin assembler directive to embed BTF contents directly was attempted but didn't work, because sysfs_proc.o is not re-compiled during link-vmlinux.sh stage. This is required, though, to update embedded BTF data (initially empty data is embedded, then pahole generates BTF info and we need to regenerate sysfs_btf.o with updated contents, but it's too late at that point). If BTF couldn't be generated due to missing or too old pahole, sysfs_btf.c handles that gracefully by detecting that _binary__btf_kernel_bin_start (weak symbol) is 0 and not creating /sys/kernel/btf at all. v2->v3: - added Documentation/ABI/testing/sysfs-kernel-btf (Greg K-H); - created proper kobject (btf_kobj) for btf directory (Greg K-H); - undo v2 change of reusing vmlinux, as it causes extra kallsyms pass due to initially missing __binary__btf_kernel_bin_{start/end} symbols; v1->v2: - allow kallsyms stage to re-use vmlinux generated by gen_btf(); Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-08-13Merge tag 'renesas-dt-bindings-for-v5.4-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel into arm/dtArnd Bergmann2-5/+6
Renesas DT binding updates for v5.4 - RZ/G2 updates for the R-Car CAN and CANFD DT bindings. * tag 'renesas-dt-bindings-for-v5.4-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel: dt-bindings: can: rcar_can: Complete documentation for RZ/G2[EM] dt-bindings: can: rcar_canfd: document r8a774a1 support Link: https://lore.kernel.org/r/20190802120355.1430-4-geert+renesas@glider.be Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-08-13Merge tag 'reset-for-v5.4' of git://git.pengutronix.de/git/pza/linux into arm/driversArnd Bergmann2-2/+34
Reset controller changes for v5.4 This tag adds support for the i.MX8MM SRC via the reset-imx7 driver and for DesignWare IP reset controllers via the reset-simple driver. A typo in the i.MX8MQ DSI reset definitions is fixed, and the Meson reset driver and binding headers are updated to SPDX license identifiers. * tag 'reset-for-v5.4' of git://git.pengutronix.de/git/pza/linux: reset: Add DesignWare IP support to simple reset dt-bindings: Document the DesignWare IP reset bindings dt-bindings: reset: amlogic,meson8b-reset: update with SPDX Licence identifier dt-bindings: reset: amlogic,meson-gxbb-reset: update with SPDX Licence identifier reset: reset-meson: update with SPDX Licence identifier dt-bindings: reset: Fix typo in imx8mq resets dt-bindings: reset: imx7: Add support for i.MX8MM Link: https://lore.kernel.org/r/1565603668.5017.2.camel@pengutronix.de Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-08-12ext4: update on-disk format documentation for fs-verityEric Biggers4-2/+48
Document the format of verity files on ext4, and the corresponding inode and superblock flags. Reviewed-by: Theodore Ts'o <tytso@mit.edu> Signed-off-by: Eric Biggers <ebiggers@google.com>
2019-08-12fscrypt: document the new ioctls and policy versionEric Biggers1-113/+610
Update the fscrypt documentation file to catch up to all the latest changes, including the new ioctls to manage master encryption keys in the filesystem-level keyring and the support for v2 encryption policies. Reviewed-by: Theodore Ts'o <tytso@mit.edu> Signed-off-by: Eric Biggers <ebiggers@google.com>
2019-08-12fscrypt: use FSCRYPT_ prefix for uapi constantsEric Biggers1-20/+20
Prefix all filesystem encryption UAPI constants except the ioctl numbers with "FSCRYPT_" rather than with "FS_". This namespaces the constants more appropriately and makes it clear that they are related specifically to the filesystem encryption feature, and to the 'fscrypt_*' structures. With some of the old names like "FS_POLICY_FLAGS_VALID", it was not immediately clear that the constant had anything to do with encryption. This is also useful because we'll be adding more encryption-related constants, e.g. for the policy version, and we'd otherwise have to choose whether to use unclear names like FS_POLICY_V1 or inconsistent names like FS_ENCRYPTION_POLICY_V1. For source compatibility with existing userspace programs, keep the old names defined as aliases to the new names. Finally, as long as new names are being defined anyway, I skipped defining new names for the fscrypt mode numbers that aren't actually used: INVALID (0), AES_256_GCM (2), AES_256_CBC (3), SPECK128_256_XTS (7), and SPECK128_256_CTS (8). Reviewed-by: Theodore Ts'o <tytso@mit.edu> Signed-off-by: Eric Biggers <ebiggers@google.com>
2019-08-12dt-bindings: fec: explicitly mark deprecated propertiesSven Van Asbroeck1-13/+17
fec's gpio phy reset properties have been deprecated. Update the dt-bindings documentation to explicitly mark them as such, and provide a short description of the recommended alternative. Signed-off-by: Sven Van Asbroeck <TheSven73@gmail.com> Signed-off-by: Rob Herring <robh@kernel.org>
2019-08-12Documentation/arm/samsung-s3c24xx: Remove stray U+FEFF character to fix titleJonathan Neuschäfer1-1/+1
It seems a UTF-8 byte order mark (the least useful kind of BOM...) snuck into the file and broke Sphinx's detection of the title line. Besides making arm/samsung-s3c24xx/index.html look a little better, this patch also confines the non-index pages in arm/samsung-s3c24xx to their own table of contents. Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-08-12Documentation/arm/sa1100/assabet: Fix 'make assabet_defconfig' commandJonathan Neuschäfer1-1/+1
"make assabet_config" doesn't work. Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-08-12Documentation/arm/sa1100: Remove some obsolete documentationJonathan Neuschäfer13-452/+0
The support for the following boards, among others, was removed in 2004 with commit "[ARM] Remove broken SA1100 machine support.": - ADS Bitsy - Brutus - Freebird - ADS GraphicsClient Plus - ADS GraphicsMaster - Höft & Wessel Webpanel - Compaq Itsy - nanoEngine - Pangolin - PLEB - Yopy Tifon support has been removed in 2.4.3.3. Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-08-12docs/zh_CN: update Chinese howto.rst for latexdocs makingAlex Shi1-4/+8
Mauro Carvalho Chehab <mchehab+samsung@kernel.org> found a reference error in Chinese howto.rst. and further more there more infos of latexdocs/epubdocs format doc making in English howto.rst. So I update this part according to latest howto.rst and settled the correct reference. Signed-off-by: Alex Shi <alex.shi@linux.alibaba.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-08-12Documentation: virt: Fix broken reference to virt tree's indexSheriff Esseson1-1/+1
Fix broken reference to virt/index.rst. Fixes: 2f5947dfcaec ("Documentation: move Documentation/virtual to Documentation/virt") Signed-off-by: Sheriff Esseson <sheriffesseson@gmail.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-08-12docs: Fix typo on pull requests guideMarco Villegas1-1/+1
Signed-off-by: Marco Villegas <git@marvil07.net> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-08-12Documentation: sphinx: Don't parse socket() as identifier referenceJonathan Neuschäfer1-1/+2
With the introduction of Documentation/sphinx/automarkup.py, socket() is parsed as a reference to the in-kernel definition of socket. Sphinx then decides that struct socket is a good match, which is usually not intended, when the syscall is meant instead. This was observed in Documentation/networking/af_xdp.rst. Prevent socket() from being misinterpreted by adding it to the Skipfuncs list in automarkup.py. Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-08-12Documentation: sphinx: Add missing comma to list of stringsJonathan Neuschäfer1-1/+1
In Python, like in C, when a comma is omitted in a list of strings, the two strings around the missing comma are concatenated. Cc: stable@vger.kernel.org # v5.2 only Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-08-12dt-bindings: add vendor prefix "acme" for "Acme Systems srl"Uwe Kleine-König1-0/+2
Add prefix for Acme Systems srl https://www.acmesystems.it Signed-off-by: Uwe Kleine-König <uwe@kleine-koenig.org> Link: https://lore.kernel.org/r/20190728210403.2730-2-uwe@kleine-koenig.org Acked-by: Rob Herring <robh@kernel.org> Reviewed-by: Ludovic Desroches <ludovic.desroches@microchip.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-08-12Merge tag 'iio-for-5.4a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-nextGreg Kroah-Hartman12-50/+455
Jonathan writes: First set of new device support, features and cleanups for IIO in the 5.4 cycle Note includes a merge from i3c tree to get support needed for stm_lsm6dsx driver support for l3c devices. Done from immutable branch. A counter subsystem patche in here as well. Alongside the new device support (which is always good), Chuhong's work on using devres managed APIs has cleaned up a number of drivers. New device support * adis16460 - New driver based on ADIS framework which needed addition of support for cs_change_delay. Includes device tree binding. * cros_ec - Support fo the veyron-minnie which uses an older interface. * lsm6dsx - Support for LSM6DSTR-C gyro + magnetometer sensor (new IDs mainly) - Support for ISM330DHCX acc + gyro sensor (extensive rework needed!) * Maxim 5432 - New driver support MAX5432-MAX5435 family of potentiometers. * noa1305 - New driver for this ON Semiconductor Ambient light sensor. Features and cleanups * tree wide - Drop error prints after platform_get_irq as already prints errors internally if any occur. * docs - Document mounting matrix. - Fix a missing newline at end of file. * ad2s1210 - Switch to device managed APIs for all of probe and drop explicit remove. * ad7192 - Add of_device_id array to explicity handling DT bindings. * ad7606 - Lots of rework leading to support for software configure modes in ad7616 parts. - Debugfs register access support. * am2315 - Switch to device managed APIs for all of probe and drop explicit remove. * apds9960 - Typo in module description. * cm36651 - Convert to i2c_new_dummy_device. - Swithc to device managed APIs for all of probe adn drop explicit remove. * cros_ec - Calibscale support for accel, gyro and magnetometer. - Tidy up some error codes to return the error from the stack rather than -EIO. - Determine protocol version. - Add a sign vector to the core to fix sensor rotation if necessary. Cannot just be done with mount matrix as already in use in many devices. - Tidy up INFO_SCALE being in both the separate and shared lists. - Drop a lot of dplicate code from the cros-ec-accel-legacy driver and use the core provided code instead. - Make frequency range available to userspace. * counter / ftm-quaddec - Switch to device managed APIs for all of probe adn drop explicit remove. * hdc100x - Switch to device managed APIs for all of probe and drop explicit remove. * hi8435 - Use gpiod_set_value_cansleep as we don't care here and there is a board out there where it needs to sleep. - Switch to device managed APIs for all of probe and drop explict remove. * hp03 - Convert to i2c_new_dummy_device. * maxim thermocouple - Switch to device managed APIs for all of probe and drop explicit remove. * mmc35240 - Fix typo in constant naming. * mpu6050 - Use devm_add_action_or_reset in place of explicit error handling. - Make text in Kconfig more explicit about which parts are supported. * mxc4005 - Switch to device managed APIs for all of probe and drop explicit remove. * pms7003 - Convert device tree bindings to yaml. - Add a MAINTAINERS entry * sc27xx - Introduce a local struct device *dev pointer to avoid lots of deref. - Use devm_add_action_or_reset in place of explicit error handling. * sca3000 - Typo fix in naming. * si1145 - Switch to device managed APIs for all of probe and drop explicit remove. * st_sensors - Lots of rework to enable switch to regmap. - Regmap conversion at the end. - Tidy up some inconsistencies in buffer setup ops. - Tidy up an oddity by dropping get_irq_data_ready function in favour of direct access. - Stop allocating buffer in buffer enable in favour of just embedding a large enough constant size buffer in the iio_priv accessed structure. * st_lsm6dsx - l3c device support (LSM6DSO and LSM6DSR) - tidy up irq return logic which was strangely written. - fix up an ABI quirk where this driver used separate scale attributes, even though they were always shared by type. * stk33xx - Device tree bindings include manufacturer ID. * stm32-adc - Add control for supply to analog switches including DT bindings. * stm32 timer - Drop the quadrature mode support. Believed there were no users so take this opportunity to drop this unwanted ABI. * tsl2772 - Switch to device mangage APIs for all of probe and drop explicit remove. - Use regulator_bulk_* APIs to reduce repitition. * veml6070 - Convert to i2c_new_dummy_device. * tag 'iio-for-5.4a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (84 commits) iio: hi8435: Drop hi8435_remove() by using devres for remaining elements iio: hi8435: Use gpiod_set_value_cansleep() iio:st_sensors: remove buffer allocation at each buffer enable iio: imu: inv_mpu6050: be more explicit on supported chips iio: light: noa1305: Add support for NOA1305 dt-bindings: Add binding document for NOA1305 iio: remove get_irq_data_ready() function pointer and use IRQ number directly iio: imu: st_lsm6dsx: make IIO_CHAN_INFO_SCALE shared by type iio: tsl2772: Use regulator_bulk_() APIs iio: tsl2772: Use devm_iio_device_register iio: tsl2772: Use devm_add_action_or_reset for tsl2772_chip_off iio: tsl2772: Use devm_add_action_or_reset iio: Remove dev_err() usage after platform_get_irq() iio: light: si1145: Use device-managed APIs iio:pressure: preenable/postenable/predisable fixup for ST press buffer iio:magn: preenable/postenable/predisable fixup for ST magn buffer iio:gyro: preenable/postenable/predisable fixup for ST gyro buffer iio:accel: preenable/postenable/predisable fixup for ST accel buffer dt-bindings: iio: imu: st_lsm6dsx: add ism330dhcx device bindings iio: imu: st_lsm6dsx: add support to ISM330DHCX ...
2019-08-12Merge tag 'v5.3-rc4' into patchworkMauro Carvalho Chehab9-193/+135
Linux 5.3-rc4 * tag 'v5.3-rc4': (750 commits) Linux 5.3-rc4 Makefile: Convert -Wimplicit-fallthrough=3 to just -Wimplicit-fallthrough for clang ARM: ep93xx: Mark expected switch fall-through scsi: fas216: Mark expected switch fall-throughs pcmcia: db1xxx_ss: Mark expected switch fall-throughs video: fbdev: omapfb_main: Mark expected switch fall-throughs watchdog: riowd: Mark expected switch fall-through s390/net: Mark expected switch fall-throughs crypto: ux500/crypt: Mark expected switch fall-throughs watchdog: wdt977: Mark expected switch fall-through watchdog: scx200_wdt: Mark expected switch fall-through watchdog: Mark expected switch fall-throughs ARM: signal: Mark expected switch fall-through mfd: omap-usb-host: Mark expected switch fall-throughs mfd: db8500-prcmu: Mark expected switch fall-throughs ARM: OMAP: dma: Mark expected switch fall-throughs ARM: alignment: Mark expected switch fall-throughs ARM: tegra: Mark expected switch fall-through ARM/hw_breakpoint: Mark expected switch fall-throughs mm/memremap: Fix reuse of pgmap instances with internal references ...
2019-08-12ASoC: fsl_esai: Add new compatible string for imx6ullShengjiu Wang1-2/+5
Add new compatible string "fsl,imx6ull-esai" in the binding document. Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com> Acked-by: Nicolin Chen <nicoleotsuka@gmail.com> Link: https://lore.kernel.org/r/1565346467-5769-2-git-send-email-shengjiu.wang@nxp.com Signed-off-by: Mark Brown <broonie@kernel.org>
2019-08-12dt-bindings: arm: imx: Add the soc binding for i.MX8MNAnson Huang1-0/+6
This patch adds the soc & board binding for i.MX8MN. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-08-12dt-bindings: arm: Extend SCMI to support new reset protocolSudeep Holla1-0/+17
SCMIv2.0 adds a new Reset Management Protocol to manage various reset states a given device or domain can enter. Extend the existing SCMI bindings to add reset protocol support by re-using the reset bindings for both reset providers and consumers. Cc: Philipp Zabel <p.zabel@pengutronix.de> Cc: Rob Herring <robh+dt@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: devicetree@vger.kernel.org Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
2019-08-12dt-bindings: display: hdmi-connector: Support DDC bus enableOndrej Jirman1-0/+1
Some Allwinner SoC using boards (Orange Pi 3 for example) need to enable on-board voltage shifting logic for the DDC bus using a gpio to be able to access DDC bus. Use ddc-en-gpios property on the hdmi-connector to model this. Add binding documentation for optional ddc-en-gpios property. Signed-off-by: Ondrej Jirman <megous@megous.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Maxime Ripard <mripard@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20190806155744.10263-3-megous@megous.com
2019-08-12dt-bindings: mfd: rn5t618: Document optional property system-power-controllerJonathan Neuschäfer1-0/+5
The RN5T618 family of PMICs can be used as system management controllers, in which case they handle poweroff and restart. Document this capability by referring to the corresponding generic DT binding. Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-08-11Merge tag 'v5.3-rc4' into nextDmitry Torokhov1415-35472/+50296
Sync up with mainline to bring in device_property_count_u32 andother newer APIs.
2019-08-12Merge 5.3-rc4 into usb-nextGreg Kroah-Hartman9-193/+135
We need the USB fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-12Merge 5.3-rc4 into driver-core-nextGreg Kroah-Hartman121-976/+1063
We need the driver core fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-12Merge 5.3-rc4 into char-misc-nextGreg Kroah-Hartman9-193/+135
We need the char-misc fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-10Merge tag 'riscv/for-v5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linuxLinus Torvalds3-163/+17
Pull RISC-V updates from Paul Walmsley: "A few minor RISC-V updates for v5.3-rc4: - Remove __udivdi3() from the 32-bit Linux port, converting the only upstream user to use do_div(), per Linux policy - Convert the RISC-V standard clocksource away from per-cpu data structures, since only one is used by Linux, even on a multi-CPU system - A set of DT binding updates that remove an obsolete text binding in favor of a YAML binding, fix a bogus compatible string in the schema (thus fixing a "make dtbs_check" warning), and clarifies the future values expected in one of the RISC-V CPU properties" * tag 'riscv/for-v5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: dt-bindings: riscv: fix the schema compatible string for the HiFive Unleashed board dt-bindings: riscv: remove obsolete cpus.txt RISC-V: Remove udivdi3 riscv: delay: use do_div() instead of __udivdi3() dt-bindings: Update the riscv,isa string description RISC-V: Remove per cpu clocksource
2019-08-10dt-bindings: usb: renesas_gen3: Rename bindings documentation file to reflect IP blockSimon Horman1-0/+0
For consistency with the naming of (most) other documentation files for DT bindings for Renesas IP blocks rename the Renesas USB3.0 peripheral documentation file from renesas,usb3.txt to renesas,usb3-peri.txt This refines a recent rename from renesas_usb3.txt to renesas,usb3.txt. The motivation is to more accurately reflect the IP block documented in this file. Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Niklas Sderlund <niklas.soderlund+renesas@ragnatech.se> Link: https://lore.kernel.org/r/20190809213710.31783-1-horms+renesas@verge.net.au Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-09dt-bindings: arm: amlogic: fix x96-max/sei510 section in amlogic.yamlChristian Hewitt1-3/+3
Move amediatech,x96-max and seirobotics,sei510 to the S905D2 section and update the S905D2 description to S905D2/X2/Y2. Signed-off-by: Christian Hewitt <christianshewitt@gmail.com> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-08-09tcp: add new tcp_mtu_probe_floor sysctlJosh Hunt1-0/+6
The current implementation of TCP MTU probing can considerably underestimate the MTU on lossy connections allowing the MSS to get down to 48. We have found that in almost all of these cases on our networks these paths can handle much larger MTUs meaning the connections are being artificially limited. Even though TCP MTU probing can raise the MSS back up we have seen this not to be the case causing connections to be "stuck" with an MSS of 48 when heavy loss is present. Prior to pushing out this change we could not keep TCP MTU probing enabled b/c of the above reasons. Now with a reasonble floor set we've had it enabled for the past 6 months. The new sysctl will still default to TCP_MIN_SND_MSS (48), but gives administrators the ability to control the floor of MSS probing. Signed-off-by: Josh Hunt <johunt@akamai.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-09dt-bindings: arm: amlogic: add support for the Khadas VIM3Christian Hewitt1-0/+3
The Khadas VIM3 uses the Amlogic S922X or A311S SoC, both based on the Amlogic G12B SoC family, on a board with the same form factor as the VIM/VIM2 models. It ships in two variants; basic and pro which differ in RAM and eMMC size: - 2GB (basic) or 4GB (pro) LPDDR4 RAM - 16GB (basic) or 32GB (pro) eMMC 5.1 storage - 16MB SPI flash - 10/100/1000 Base-T Ethernet - AP6398S Wireless (802.11 a/b/g/n/ac, BT5.0) - HDMI 2.1 video - 1x USB 2.0 + 1x USB 3.0 ports - 1x USB-C (power) with USB 2.0 OTG - 3x LED's (1x red, 1x blue, 1x white) - 3x buttons (power, function, reset) - IR receiver - M2 socket with PCIe, USB, ADC & I2C - 40pin GPIO Header - 1x micro SD card slot Signed-off-by: Christian Hewitt <christianshewitt@gmail.com> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-08-09dt-bindings: arm: amlogic: add bindings for the Amlogic G12B based A311D SoCNeil Armstrong1-0/+5
Add a specific compatible for the Amlogic G12B bases A311D SoC used in the Khadas VIM3. Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-08-09dt-bindings: arm: amlogic: add bindings for G12B based S922X SoCNeil Armstrong1-0/+1
Add a specific compatible for the Amlogic G12B family based S922X SoC to differentiate with the A311D SoC from the same family. Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-08-09dt-bindings: media: amlogic,vdec: add default compatibleMaxime Jourdan1-2/+3
The first version of the bindings is missing a generic compatible that is used by the base node (GX), and then extended by the SoC device trees (GXBB, GXL, GXM) Also change the example to use "video-codec" instead of "video-decoder", as the former is the one used in almost all cases when it comes to video decode/encode accelerators. Signed-off-by: Maxime Jourdan <mjourdan@baylibre.com> Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-08-09dt-bindings: regulator: twl6030: Add retain-on-reset propertyGregory CLEMENT1-0/+7
During reset the VMMC regulator doesn't reach 0V and only drops to 1.8V, furthermore the pulse width is under 200us whereas the SD specification expect 1ms. For this 2 reasons being able to no reset at all the VMMC during warm reset and keep the current voltage is a good workaround. The TWL6030 allows this but needs to be aware of it and this configuration should also be shared with the bootloader. This is the purpose of this new property: ti,retain-on-reset Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com> Link: https://lore.kernel.org/r/20190725094542.16547-2-gregory.clement@bootlin.com Signed-off-by: Mark Brown <broonie@kernel.org>
2019-08-09ALSA: hda - Add a quirk model for fixing Huawei Matebook X right speakerTomas Espeleta1-0/+3
[ This is rather a revival of the patch Tomas sent in months ago, but applying only with the quirk model option -- tiwai ] Hard coded coefficients to make Huawuei Matebook X right speaker work. The Matebook X has a ALC298, please refer to bug 197801 on how these numbers were reverse engineered from the Windows driver The reversed engineered sequence represents a repeating pattern of verbs, and the only values that are changing periodically are written on indexes 0x23 and 0x25: 0x500, 0x23 0x400, VALUE1 0x500, 0x25 0x400, VALUE2 * skipped reading sequences (0x500 - 0xc00 sequences are ignored) * static values from reverse engineering are used NOTE: since a significant risk is still considered, this is provided as an experimental fix that isn't applied as default for now. For enabling the fix, you'll have to choose huawei-mbx-stereo via model option of snd-hda-intel module. If we get feedback from users that this works stably, we may apply it per default. [ Some coding style fixes and replacement with AC_VERB_* by tiwai ] BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=197801 Signed-off-by: Tomas Espeleta <tomas.espeleta@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-09Merge tag 'kvmarm-fixes-for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEADPaolo Bonzini729-12085/+19122
KVM/arm fixes for 5.3 - A bunch of switch/case fall-through annotation, fixing one actual bug - Fix PMU reset bug - Add missing exception class debug strings
2019-08-09Merge tag 'fpga-for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mdf/linux-fpga into char-misc-nextGreg Kroah-Hartman5-18/+18
Moritz writes: FPGA Manager changes for 5.4-rc1 Here is the first set of changes for the 5.4-rc1 merge window. They're all more or less cleanup patches: - Carlos' patch addresses a checkpatch warning - My first patch changes the return type of a function to align it with the fact that nothing checks the return value and it uncoditionally returned 0 anyways - My second patch somehow fell through the cracks before and cleans up the FPGA bridge bindings by consolidating them instead of repeating the same paragraph over and over again. All of these patches have been in the last few linux-next releases without issues. Signed-off-by: Moritz Fischer <mdf@kernel.org> * tag 'fpga-for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mdf/linux-fpga: dt-bindings: fpga: Consolidate bridge properties fpga: altera-pr-ip: Make alt_pr_unregister function void fpga: altera-cvp: Fix function definition argument
2019-08-09Input: ads7846 - add support for general touchscreen bindingsMarco Felsch1-8/+21
A few vendor specific bindings are now covered by common bindings. Let the driver parse the common bindings to make use of common inverting and swapping mechnism. Aslo make use of touchscreen_report_pos() to ensure the correct inverting-swapping order. The vendor specific properties are used as default (backward compatibility) and gets overwritten by common bindings. Signed-off-by: Marco Felsch <m.felsch@pengutronix.de> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-08-09dt-bindings: input: ads7846: fix property descriptionMarco Felsch1-1/+1
The ti,y-max is used for the maximum value of the Y axis. Signed-off-by: Marco Felsch <m.felsch@pengutronix.de> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-08-09regulator: dt-bindings: Sort the compatibles and nodesVinod Koul1-9/+10
It helps to keep sorted order for compatibles and nodes, so sort them Suggested-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org> Link: https://lore.kernel.org/r/20190809073616.1235-1-vkoul@kernel.org Signed-off-by: Mark Brown <broonie@kernel.org>
2019-08-09docs: arm64: Add layout and 52-bit info to memory documentSteve Capper1-26/+93
As the kernel no longer prints out the memory layout on boot, this patch adds this information back to the memory document. Also, as the 52-bit support introduces some subtle changes to the arm64 memory, the rationale behind these changes are also added to the memory document. Signed-off-by: Steve Capper <steve.capper@arm.com> Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Will Deacon <will@kernel.org>
2019-08-09arm64: kasan: Switch to using KASAN_SHADOW_OFFSETSteve Capper1-0/+27
KASAN_SHADOW_OFFSET is a constant that is supplied to gcc as a command line argument and affects the codegen of the inline address sanetiser. Essentially, for an example memory access: *ptr1 = val; The compiler will insert logic similar to the below: shadowValue = *(ptr1 >> KASAN_SHADOW_SCALE_SHIFT + KASAN_SHADOW_OFFSET) if (somethingWrong(shadowValue)) flagAnError(); This code sequence is inserted into many places, thus KASAN_SHADOW_OFFSET is essentially baked into many places in the kernel text. If we want to run a single kernel binary with multiple address spaces, then we need to do this with KASAN_SHADOW_OFFSET fixed. Thankfully, due to the way the KASAN_SHADOW_OFFSET is used to provide shadow addresses we know that the end of the shadow region is constant w.r.t. VA space size: KASAN_SHADOW_END = ~0 >> KASAN_SHADOW_SCALE_SHIFT + KASAN_SHADOW_OFFSET This means that if we increase the size of the VA space, the start of the KASAN region expands into lower addresses whilst the end of the KASAN region is fixed. Currently the arm64 code computes KASAN_SHADOW_OFFSET at build time via build scripts with the VA size used as a parameter. (There are build time checks in the C code too to ensure that expected values are being derived). It is sufficient, and indeed is a simplification, to remove the build scripts (and build time checks) entirely and instead provide KASAN_SHADOW_OFFSET values. This patch removes the logic to compute the KASAN_SHADOW_OFFSET in the arm64 Makefile, and instead we adopt the approach used by x86 to supply offset values in kConfig. To help debug/develop future VA space changes, the Makefile logic has been preserved in a script file in the arm64 Documentation folder. Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Steve Capper <steve.capper@arm.com> Signed-off-by: Will Deacon <will@kernel.org>
2019-08-09drm/panel: simple: Add TI nspire panel bindingsLinus Walleij1-0/+36
Add bindings for the TI NSPIRE simple display panels. Cc: devicetree@vger.kernel.org Reviewed-by: Rob Herring <robh@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20190806135437.7451-1-linus.walleij@linaro.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-08-09Merge tag 'drm-misc-next-2019-08-08' of git://anongit.freedesktop.org/drm/drm-misc into drm-nextDave Airlie53-752/+1250
drm-misc-next for 5.4: UAPI Changes: - HDCP: Add a Content protection type property Cross-subsystem Changes: Core Changes: - Continue to rework the include dependencies - fb: Remove the unused drm_gem_fbdev_fb_create function - drm-dp-helper: Make the link rate calculation more tolerant to non-explicitly defined, yet supported, rates - fb-helper: Map DRM client buffer only when required, and instanciate a shadow buffer when the device has a dirty function or says so - connector: Add a helper to link the DDC adapter used by that connector to the userspace - vblank: Switch from DRM_WAIT_ON to wait_event_interruptible_timeout - dma-buf: Fix a stack corruption - ttm: Embed a drm_gem_object struct to make ttm_buffer_object a superclass of GEM, and convert drivers to use it. - hdcp: Improvements to report the content protection type to the userspace Driver Changes: - Remove drm_gem_prime_import/export from being defined in the drivers - Drop DRM_AUTH usage from drivers - Continue to drop drmP.h - Convert drivers to the connector ddc helper - ingenic: Add support for more panel-related cases - komeda: Support for dual-link - lima: Reduce logging - mpag200: Fix the cursor support - panfrost: Export GPU features register to userspace through an ioctl - pl111: Remove the CLD pads wiring support from the DT - rockchip: Rework to use DRM PSR helpers, fix a bug in the VOP_WIN_GET macro - sun4i: Improve support for color encoding and range - tinydrm: Rework SPI support, improve MIPI-DBI support, move to drm/tiny - vkms: Rework of the CRC tracking - bridges: - sii902x: Add support for audio graph card - tc358767: Rework AUX data handling code - ti-sn65dsi86: Add Debugfs and proper DSI mode flags support - panels - Support for GiantPlus GPM940B0, Sharp LQ070Y3DG3B, Ortustech COM37H3M, Novatek NT39016, Sharp LS020B1DD01D, Raydium RM67191, Boe Himax8279d, Sharp LD-D5116Z01B - Conversion of the device tree bindings to the YAML description - jh057n00900: Rework the enable / disable path - fbdev: - ssd1307fb: Support more devices based on that controller Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190808121423.xzpedzkpyecvsiy4@flea
2019-08-08net/tls: prevent skb_orphan() from leaking TLS plain text with offloadJakub Kicinski1-18/+0
sk_validate_xmit_skb() and drivers depend on the sk member of struct sk_buff to identify segments requiring encryption. Any operation which removes or does not preserve the original TLS socket such as skb_orphan() or skb_clone() will cause clear text leaks. Make the TCP socket underlying an offloaded TLS connection mark all skbs as decrypted, if TLS TX is in offload mode. Then in sk_validate_xmit_skb() catch skbs which have no socket (or a socket with no validation) and decrypted flag set. Note that CONFIG_SOCK_VALIDATE_XMIT, CONFIG_TLS_DEVICE and sk->sk_validate_xmit_skb are slightly interchangeable right now, they all imply TLS offload. The new checks are guarded by CONFIG_TLS_DEVICE because that's the option guarding the sk_buff->decrypted member. Second, smaller issue with orphaning is that it breaks the guarantee that packets will be delivered to device queues in-order. All TLS offload drivers depend on that scheduling property. This means skb_orphan_partial()'s trick of preserving partial socket references will cause issues in the drivers. We need a full orphan, and as a result netem delay/throttling will cause all TLS offload skbs to be dropped. Reusing the sk_buff->decrypted flag also protects from leaking clear text when incoming, decrypted skb is redirected (e.g. by TC). See commit 0608c69c9a80 ("bpf: sk_msg, sock{map|hash} redirect through ULP") for justification why the internal flag is safe. The only location which could leak the flag in is tcp_bpf_sendmsg(), which is taken care of by clearing the previously unused bit. v2: - remove superfluous decrypted mark copy (Willem); - remove the stale doc entry (Boris); - rely entirely on EOR marking to prevent coalescing (Boris); - use an internal sendpages flag instead of marking the socket (Boris). v3 (Willem): - reorganize the can_skb_orphan_partial() condition; - fix the flag leak-in through tcp_bpf_sendmsg. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Acked-by: Willem de Bruijn <willemb@google.com> Reviewed-by: Boris Pismenny <borisp@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-09Documentation: Add debugfs doc for hisi_zipZhou Wang1-0/+50
Add debugfs descriptions for HiSilicon ZIP and QM driver. Signed-off-by: Zhou Wang <wangzhou1@hisilicon.com> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>