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2017-11-02License cleanup: add SPDX GPL-2.0 license identifier to files with no licenseGreg Kroah-Hartman
Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-10-23Merge tag 'staging-4.14-rc6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging and IIO fixes from Greg KH: "Here are a small number of patches to resolve some reported IIO and a staging driver problem. Nothing major here, full details are in the shortlog below. All have been in linux-next with no reported issues" * tag 'staging-4.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: staging: bcm2835-audio: Fix memory corruption iio: adc: at91-sama5d2_adc: fix probe error on missing trigger property iio: adc: dln2-adc: fix build error iio: dummy: events: Add missing break staging: iio: ade7759: fix signed extension bug on shift of a u8 iio: pressure: zpa2326: Remove always-true check which confuses gcc iio: proximity: as3935: noise detection + threshold changes
2017-10-18staging: bcm2835-audio: Fix memory corruptionPhil Elwell
The previous commit (0adbfd46) fixed a memory leak but also freed a block in the success case, causing a stale pointer to be used with potentially fatal results. Only free the vchi_instance block in the case that vchi_connect fails; once connected, the instance is retained for subsequent connections. Simplifying the code by removing a bunch of gotos and returning errors directly. Signed-off-by: Phil Elwell <phil@raspberrypi.org> Fixes: 0adbfd4694c2 ("staging: bcm2835-audio: fix memory leak in bcm2835_audio_open_connection()") Cc: stable <stable@vger.kernel.org> # 4.12+ Tested-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-10-17Merge tag 'media/v4.14-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media fixes from Mauro Carvalho Chehab: "Core fixes: - cec: Respond to unregistered initiators, when applicable - dvb_frontend: only use kref after initialized Driver-specific fixes: - qcom, camss: Make function vfe_set_selection static - qcom: VIDEO_QCOM_CAMSS should depend on HAS_DMA - s5p-cec: add NACK detection support - media: staging/imx: Fix uninitialized variable warning - dib3000mc: i2c transfers over usb cannot be done from stack - venus: init registered list on streamoff" * tag 'media/v4.14-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: media: dvb_frontend: only use kref after initialized media: platform: VIDEO_QCOM_CAMSS should depend on HAS_DMA media: cec: Respond to unregistered initiators, when applicable media: s5p-cec: add NACK detection support media: staging/imx: Fix uninitialized variable warning media: qcom: camss: Make function vfe_set_selection static media: venus: init registered list on streamoff media: dvb: i2c transfers over usb cannot be done from stack
2017-09-30staging: iio: ade7759: fix signed extension bug on shift of a u8Colin Ian King
The current shift of st->rx[2] left shifts a u8 24 bits left, promotes the integer to a an int and then to a unsigned u64. If the top bit of st->rx[2] is set then we end up with all the upper bits being set to 1. Fix this by casting st->rx[2] to a u64 before the 24 bit left shift. Detected by CoverityScan CID#144940 ("Unintended sign extension") Fixes: 2919fa54ef64 ("staging: iio: meter: new driver for ADE7759 devices") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-09-25Merge tag 'iio-fixes-for-4.14a' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus Jonathan writes: First round of IIO fixes for the 4.14 cycle Note this includes fixes from recent merge window. As such the tree is based on top of a prior staging/staging-next tree. * iio core - return and error for a failed read_reg debugfs call rather than eating the error. * ad7192 - Use the dedicated reset function in the ad_sigma_delta library instead of an spi transfer with the data on the stack which could cause problems with DMA. * ad7793 - Implement a dedicate reset function in the ad_sigma_delta library and use it to correctly reset this part. * bme280 - ctrl_reg write must occur after any register writes for updates to take effect. * mcp320x - negative voltage readout was broken. - Fix an oops on module unload due to spi_set_drvdata not being called in probe. * st_magn - Fix the data ready line configuration for the lis3mdl. It is not configurable so the st_magn core was assuming it didn't exist and so wasn't consuming interrupts resulting in an unhandled interrupt. * stm32-adc - off by one error on max channels checking. * stm32-timer - preset should not be buffered - reorganising register writes avoids this. - fix a corner case in which write preset goes wrong when a timer is used first as a trigger then as a counter with preset. Odd case but you never know. * ti-ads1015 - Fix setting of comparator polarity by fixing bitfield definition. * twl4030 - Error path handling fix to cleanup in event of regulator registration failure. - Disable the vusb3v1 regulator correctly in error handling - Don't paper over a regulator enable failure.
2017-09-24staging: iio: ad7192: Fix - use the dedicated reset function avoiding dma ↵Stefan Popa
from stack. Depends on: 691c4b95d1 ("iio: ad_sigma_delta: Implement a dedicated reset function") SPI host drivers can use DMA to transfer data, so the buffer should be properly allocated. Keeping it on the stack could cause an undefined behavior. The dedicated reset function solves this issue. Signed-off-by: Stefan Popa <stefan.popa@analog.com> Acked-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Michael Hennerich <michael.hennerich@analog.com> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-09-23media: staging/imx: Fix uninitialized variable warningLaurent Pinchart
The ret variable can be returned uninitialized in the imx_media_create_pad_vdev_lists() function is imxmd->num_vdevs is zero. Fix it. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hansverk@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-22staging: rtl8723bs: avoid null pointer dereference on pmlmeprivColin Ian King
There is a check to see if pmlmepriv is null before vfree'ing pmlmepriv->free_bss_buf hence implying pmlmepriv could potenially be null. However, a previous call to rtw_free_mlme_priv_ie_data can also dereference pmlmepriv, so move this call so that it is only called if pmlmepriv non-null. Detected by CoverityScan, CID#1077739 ("Dereference before null check") Fixes: 554c0a3abf21 ("staging: Add rtl8723bs sdio wifi driver") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-09-22staging: rtl8723bs: add missing range check on idColin Ian King
The value of the u8 id needs to be upper bounds checked to ensure the cam_cache array on the adapter dvobj is not indexed outside of the allowed range of 0..TOTAL_CAM_ENTRY-1. This can currently occur if id is >= TOTAL_CAM_ENTRY when calling write_cam_from_cache. Fix this by adding an upper range check. Detected by CoverityScan, CID#1428464 ("Use of untrusted scalar value") Fixes: 554c0a3abf21 ("staging: Add rtl8723bs sdio wifi driver") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-09-18staging: vchiq_2835_arm: Fix NULL ptr dereference in free_pagelistStefan Wahren
This fixes a NULL pointer dereference on RPi 2 with multi_v7_defconfig. The function page_address() could return NULL with enabled CONFIG_HIGHMEM. So fix this by using kmap() instead. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Fixes: 71bad7f08641 ("staging: add bcm2708 vchiq driver") Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-09-18staging: speakup: fix speakup-r empty line lockupOkash Khawaja
When cursor is at beginning of an empty or whitespace-only line and speakup-r typed, kernel locks up. This happens because deadlock of in input_event function over dev->event_lock, as demonstrated by lockdep logs. The reason for that is speakup simulates a down arrow - because cursor is at an empty line - while inside key press notifier handler which is ultimately triggered from input_event function. The simulated key press leads to input_event being called again, this time under its own context. So the spinlock is dev->event_lock is acquired while still being held. This patch ensures that key press is not simulated from inside key press notifier handler. Instead it delegates to cursor_timer. It starts the timer and passes RA_DOWN_ARROW as argument. When timer handler runs and sees RA_DOWN_ARROW, it will then call kbd_fakekey2(RA_DOWN_ARROW) which will correctly simulate the keypress inside timer context. When not inside key press notifier callback, the behaviour will remain the same as before this patch. Signed-off-by: Okash Khawaja <okash.khawaja@gmail.com> Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-09-18staging: pi433: Move limit check to switch default to kill warningGeert Uytterhoeven
With gcc-4.1.2: drivers/staging/pi433/rf69.c: In function ‘rf69_set_dio_mapping’: drivers/staging/pi433/rf69.c:566: warning: ‘regaddr’ may be used uninitialized in this function drivers/staging/pi433/rf69.c:565: warning: ‘shift’ may be used uninitialized in this function drivers/staging/pi433/rf69.c:564: warning: ‘mask’ may be used uninitialized in this function While this is a false positive, it can easily be fixed by moving the limit check into the "default" case of the switch statement. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-09-18staging: r8822be: fix null pointer dereferences with a null driver_adapterColin Ian King
The call to _rtl_dbg_trace via macro HALMAC_RT_TRACE will trigger a null pointer deference on a null driver_adapter. Fix this by assigning driver_adapter earlier to halmac_adapter->driver_adapter before the tracing call so that a non-null driver_adapter is passed instead. I should have spotted these with an earlier patch I sent, but I overlooked these in the rather large CoverityScan logs. Detected by CoverityScan, CID#1454550, CID#1454554, CID#1454565, CID#1454591, CID#1454598 ("Explicit null dereferenced") Fixes: 938a0447f094 ("staging: r8822be: Add code for halmac sub-driver") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-09-18staging: mt29f_spinand: Enable the read ECC before program the pageArun Nagendran
Current program_page function did following operation: 1. read page (with ECC OFF) 2. modify the page 3. write the page (with ECC ON) For some case(buggy flash Chip), while read the page without ECC ON, we may read the page with bit flip error and modify that bad page without knowing the bit flip error on that page. also we re-calculate the hash for bad page and write it. This could bring potential in-consistency problem with Flash data. Verify this logic with GIGA DEVICE Part(GD5F2GQ4RCFIG): we see this in-conststency problem wit Giga Device and fix on this patch resovle that issue. Signed-off-by: Arun Nagendran <arunrasppi@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-09-18staging: unisys/visorbus: add __init/__exit annotationsArnd Bergmann
gcc-4.6 causes a harmless warning about the init function: WARNING: vmlinux.o(.text+0xed62c2): Section mismatch in reference from the function init_unisys() to the function .init.text:visorutil_spar_detect() The function init_unisys() references the function __init visorutil_spar_detect(). This is often because init_unisys lacks a __init annotation or the annotation of visorutil_spar_detect is wrong. It appears that newer versions inline visorutil_spar_detect(), end up with an empty __init section. This marks the module entry points as __init and __exit respectively, which avoids the warning and slightly reduces the runtime code size. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-09-14Merge branch 'work.mount' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull mount flag updates from Al Viro: "Another chunk of fmount preparations from dhowells; only trivial conflicts for that part. It separates MS_... bits (very grotty mount(2) ABI) from the struct super_block ->s_flags (kernel-internal, only a small subset of MS_... stuff). This does *not* convert the filesystems to new constants; only the infrastructure is done here. The next step in that series is where the conflicts would be; that's the conversion of filesystems. It's purely mechanical and it's better done after the merge, so if you could run something like list=$(for i in MS_RDONLY MS_NOSUID MS_NODEV MS_NOEXEC MS_SYNCHRONOUS MS_MANDLOCK MS_DIRSYNC MS_NOATIME MS_NODIRATIME MS_SILENT MS_POSIXACL MS_KERNMOUNT MS_I_VERSION MS_LAZYTIME; do git grep -l $i fs drivers/staging/lustre drivers/mtd ipc mm include/linux; done|sort|uniq|grep -v '^fs/namespace.c$') sed -i -e 's/\<MS_RDONLY\>/SB_RDONLY/g' \ -e 's/\<MS_NOSUID\>/SB_NOSUID/g' \ -e 's/\<MS_NODEV\>/SB_NODEV/g' \ -e 's/\<MS_NOEXEC\>/SB_NOEXEC/g' \ -e 's/\<MS_SYNCHRONOUS\>/SB_SYNCHRONOUS/g' \ -e 's/\<MS_MANDLOCK\>/SB_MANDLOCK/g' \ -e 's/\<MS_DIRSYNC\>/SB_DIRSYNC/g' \ -e 's/\<MS_NOATIME\>/SB_NOATIME/g' \ -e 's/\<MS_NODIRATIME\>/SB_NODIRATIME/g' \ -e 's/\<MS_SILENT\>/SB_SILENT/g' \ -e 's/\<MS_POSIXACL\>/SB_POSIXACL/g' \ -e 's/\<MS_KERNMOUNT\>/SB_KERNMOUNT/g' \ -e 's/\<MS_I_VERSION\>/SB_I_VERSION/g' \ -e 's/\<MS_LAZYTIME\>/SB_LAZYTIME/g' \ $list and commit it with something along the lines of 'convert filesystems away from use of MS_... constants' as commit message, it would save a quite a bit of headache next cycle" * 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: VFS: Differentiate mount flags (MS_*) from internal superblock flags VFS: Convert sb->s_flags & MS_RDONLY to sb_rdonly(sb) vfs: Add sb_rdonly(sb) to query the MS_RDONLY flag on s_flags
2017-09-14Merge branch 'work.set_fs' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull more set_fs removal from Al Viro: "Christoph's 'use kernel_read and friends rather than open-coding set_fs()' series" * 'work.set_fs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: fs: unexport vfs_readv and vfs_writev fs: unexport vfs_read and vfs_write fs: unexport __vfs_read/__vfs_write lustre: switch to kernel_write gadget/f_mass_storage: stop messing with the address limit mconsole: switch to kernel_read btrfs: switch write_buf to kernel_write net/9p: switch p9_fd_read to kernel_write mm/nommu: switch do_mmap_private to kernel_read serial2002: switch serial2002_tty_write to kernel_{read/write} fs: make the buf argument to __kernel_write a void pointer fs: fix kernel_write prototype fs: fix kernel_read prototype fs: move kernel_read to fs/read_write.c fs: move kernel_write to fs/read_write.c autofs4: switch autofs4_write to __kernel_write ashmem: switch to ->read_iter
2017-09-09Merge tag 'for-linus-20170904' of git://git.infradead.org/linux-mtdLinus Torvalds
Pull MTD updates from Boris Brezillon: "General updates: - Constify pci_device_id in various drivers - Constify device_type - Remove pad control code from the Gemini driver - Use %pOF to print OF node full_name - Various fixes in the physmap_of driver - Remove unused vars in mtdswap - Check devm_kzalloc() return value in the spear_smi driver - Check clk_prepare_enable() return code in the st_spi_fsm driver - Create per MTD device debugfs enties NAND updates, from Boris Brezillon: - Fix memory leaks in the core - Remove unused NAND locking support - Rename nand.h into rawnand.h (preparing support for spi NANDs) - Use NAND_MAX_ID_LEN where appropriate - Fix support for 20nm Hynix chips - Fix support for Samsung and Hynix SLC NANDs - Various cleanup, improvements and fixes in the qcom driver - Fixes for bugs detected by various static code analysis tools - Fix mxc ooblayout definition - Add a new part_parsers to tmio and sharpsl platform data in order to define a custom list of partition parsers - Request the reset line in exclusive mode in the sunxi driver - Fix a build error in the orion-nand driver when compiled for ARMv4 - Allow 64-bit mvebu platforms to select the PXA3XX driver SPI NOR updates, from Cyrille Pitchen and Marek Vasut: - add support to the JEDEC JESD216B specification (SFDP tables). - add support to the Intel Denverton SPI flash controller. - fix error recovery for Spansion/Cypress SPI NOR memories. - fix 4-byte address management for the Aspeed SPI controller. - add support to some Microchip SST26 memory parts - remove unneeded pinctrl header Write a message for tag:" * tag 'for-linus-20170904' of git://git.infradead.org/linux-mtd: (74 commits) mtd: nand: complain loudly when chip->bits_per_cell is not correctly initialized mtd: nand: make Samsung SLC NAND usable again mtd: nand: tmio: Register partitions using the parsers mfd: tmio: Add partition parsers platform data mtd: nand: sharpsl: Register partitions using the parsers mtd: nand: sharpsl: Add partition parsers platform data mtd: nand: qcom: Support for IPQ8074 QPIC NAND controller mtd: nand: qcom: support for IPQ4019 QPIC NAND controller dt-bindings: qcom_nandc: IPQ8074 QPIC NAND documentation dt-bindings: qcom_nandc: IPQ4019 QPIC NAND documentation dt-bindings: qcom_nandc: fix the ipq806x device tree example mtd: nand: qcom: support for different DEV_CMD register offsets mtd: nand: qcom: QPIC data descriptors handling mtd: nand: qcom: enable BAM or ADM mode mtd: nand: qcom: erased codeword detection configuration mtd: nand: qcom: support for read location registers mtd: nand: qcom: support for passing flags in DMA helper functions mtd: nand: qcom: add BAM DMA descriptor handling mtd: nand: qcom: allocate BAM transaction mtd: nand: qcom: DMA mapping support for register read buffer ...
2017-09-07Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds
Pull SCSI updates from James Bottomley: "This is mostly updates of the usual suspects: lpfc, qla2xxx, hisi_sas, megaraid_sas, zfcp and a host of minor updates. The major driver change here is the elimination of the block based cciss driver in favour of the SCSI based hpsa driver (which now drives all the legacy cases cciss used to be required for). Plus a reset handler clean up and the redo of the SAS SMP handler to use bsg lib" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (279 commits) scsi: scsi-mq: Always unprepare before requeuing a request scsi: Show .retries and .jiffies_at_alloc in debugfs scsi: Improve requeuing behavior scsi: Call scsi_initialize_rq() for filesystem requests scsi: qla2xxx: Reset the logo flag, after target re-login. scsi: qla2xxx: Fix slow mem alloc behind lock scsi: qla2xxx: Clear fc4f_nvme flag scsi: qla2xxx: add missing includes for qla_isr scsi: qla2xxx: Fix an integer overflow in sysfs code scsi: aacraid: report -ENOMEM to upper layer from aac_convert_sgraw2() scsi: aacraid: get rid of one level of indentation scsi: aacraid: fix indentation errors scsi: storvsc: fix memory leak on ring buffer busy scsi: scsi_transport_sas: switch to bsg-lib for SMP passthrough scsi: smartpqi: remove the smp_handler stub scsi: hpsa: remove the smp_handler stub scsi: bsg-lib: pass the release callback through bsg_setup_queue scsi: Rework handling of scsi_device.vpd_pg8[03] scsi: Rework the code for caching Vital Product Data (VPD) scsi: rcu: Introduce rcu_swap_protected() ...
2017-09-07Merge tag 'media/v4.14-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: "Brazil's Independence Day pull request :-) This is one of the biggest media pull requests, with 625 patches affecting almost all parts of media (RC, DVB, V4L2, CEC, docs). This contains: - A lot of new drivers: * DVB frontends: mxl5xx, stv0910, stv6111; * camera flash: as3645a led driver; * HDMI receiver: adv748X; * camera sensor: Omnivision 6650 5M driver (ov6650); * HDMI CEC: ao-cec meson driver; * V4L2: Qualcom camss driver; * Remote controller: gpio-ir-tx, pwm-ir-tx and zx-irdec drivers. - The DDbridge DVB driver got a massive update, with makes it in sync with modern hardware from that vendor; - There's an important milestone on this series: the DVB documentation was written in 2003, but only started to be updated in 2007. It also used to contain several gaps from the time it was kept out of tree, mentioning error codes and device nodes that never existed upstream. On this series, it received a massive update: all non-deprecated digital TV APIs are now in sync with the current implementation; - Some DVB APIs that aren't used by any upstream driver got removed; - Other parts of the media documentation algo got updated, fixing some bugs on its PDF output and making it compatible with Sphinx version 1.6. As the number of hacks required to build PDF output reduced, I hope we'll have less troubles as newer versions of our documentation toolchain are released (famous last words); - As usual, lots of driver cleanups and improvements" * tag 'media/v4.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (624 commits) media: leds: as3645a: add V4L2_FLASH_LED_CLASS dependency media: get rid of removed DMX_GET_CAPS and DMX_SET_SOURCE leftovers media: Revert "[media] v4l: async: make v4l2 coexist with devicetree nodes in a dt overlay" media: staging: atomisp: sh_css_calloc shall return a pointer to the allocated space media: Revert "[media] lirc_dev: remove superfluous get/put_device() calls" media: add qcom_camss.rst to v4l-drivers rst file media: dvb headers: make checkpatch happier media: dvb uapi: move frontend legacy API to another part of the book media: pixfmt-srggb12p.rst: better format the table for PDF output media: docs-rst: media: Don't use \small for V4L2_PIX_FMT_SRGGB10 documentation media: index.rst: don't write "Contents:" on PDF output media: pixfmt*.rst: replace a two dots by a comma media: vidioc-g-fmt.rst: adjust table format media: vivid.rst: add a blank line to correct ReST format media: v4l2 uapi book: get rid of driver programming's chapter media: format.rst: use the right markup for important notes media: docs-rst: cardlists: change their format to flat-tables media: em28xx-cardlist.rst: update to reflect last changes media: v4l2-event.rst: adjust table to fit on PDF output media: docs: don't show ToC for each part on PDF output ...
2017-09-06Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds
Pull networking updates from David Miller: 1) Support ipv6 checksum offload in sunvnet driver, from Shannon Nelson. 2) Move to RB-tree instead of custom AVL code in inetpeer, from Eric Dumazet. 3) Allow generic XDP to work on virtual devices, from John Fastabend. 4) Add bpf device maps and XDP_REDIRECT, which can be used to build arbitrary switching frameworks using XDP. From John Fastabend. 5) Remove UFO offloads from the tree, gave us little other than bugs. 6) Remove the IPSEC flow cache, from Florian Westphal. 7) Support ipv6 route offload in mlxsw driver. 8) Support VF representors in bnxt_en, from Sathya Perla. 9) Add support for forward error correction modes to ethtool, from Vidya Sagar Ravipati. 10) Add time filter for packet scheduler action dumping, from Jamal Hadi Salim. 11) Extend the zerocopy sendmsg() used by virtio and tap to regular sockets via MSG_ZEROCOPY. From Willem de Bruijn. 12) Significantly rework value tracking in the BPF verifier, from Edward Cree. 13) Add new jump instructions to eBPF, from Daniel Borkmann. 14) Rework rtnetlink plumbing so that operations can be run without taking the RTNL semaphore. From Florian Westphal. 15) Support XDP in tap driver, from Jason Wang. 16) Add 32-bit eBPF JIT for ARM, from Shubham Bansal. 17) Add Huawei hinic ethernet driver. 18) Allow to report MD5 keys in TCP inet_diag dumps, from Ivan Delalande. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1780 commits) i40e: point wb_desc at the nvm_wb_desc during i40e_read_nvm_aq i40e: avoid NVM acquire deadlock during NVM update drivers: net: xgene: Remove return statement from void function drivers: net: xgene: Configure tx/rx delay for ACPI drivers: net: xgene: Read tx/rx delay for ACPI rocker: fix kcalloc parameter order rds: Fix non-atomic operation on shared flag variable net: sched: don't use GFP_KERNEL under spin lock vhost_net: correctly check tx avail during rx busy polling net: mdio-mux: add mdio_mux parameter to mdio_mux_init() rxrpc: Make service connection lookup always check for retry net: stmmac: Delete dead code for MDIO registration gianfar: Fix Tx flow control deactivation cxgb4: Ignore MPS_TX_INT_CAUSE[Bubble] for T6 cxgb4: Fix pause frame count in t4_get_port_stats cxgb4: fix memory leak tun: rename generic_xdp to skb_xdp tun: reserve extra headroom only when XDP is set net: dsa: bcm_sf2: Configure IMP port TC2QOS mapping net: dsa: bcm_sf2: Advertise number of egress queues ...
2017-09-06Merge tag 'wberr-v4.14-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux Pull writeback error handling updates from Jeff Layton: "This pile continues the work from last cycle on better tracking writeback errors. In v4.13 we added some basic errseq_t infrastructure and converted a few filesystems to use it. This set continues refining that infrastructure, adds documentation, and converts most of the other filesystems to use it. The main exception at this point is the NFS client" * tag 'wberr-v4.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux: ecryptfs: convert to file_write_and_wait in ->fsync mm: remove optimizations based on i_size in mapping writeback waits fs: convert a pile of fsync routines to errseq_t based reporting gfs2: convert to errseq_t based writeback error reporting for fsync fs: convert sync_file_range to use errseq_t based error-tracking mm: add file_fdatawait_range and file_write_and_wait fuse: convert to errseq_t based error tracking for fsync mm: consolidate dax / non-dax checks for writeback Documentation: add some docs for errseq_t errseq: rename __errseq_set to errseq_set
2017-09-06Merge tag 'locks-v4.14-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux Pull file locking updates from Jeff Layton: "This pile just has a few file locking fixes from Ben Coddington. There are a couple of cleanup patches + an attempt to bring sanity to the l_pid value that is reported back to userland on an F_GETLK request. After a few gyrations, he came up with a way for filesystems to communicate to the VFS layer code whether the pid should be translated according to the namespace or presented as-is to userland" * tag 'locks-v4.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux: locks: restore a warn for leaked locks on close fs/locks: Remove fl_nspid and use fs-specific l_pid for remote locks fs/locks: Use allocation rather than the stack in fcntl_getlk()
2017-09-05Merge tag 'staging-4.14-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging/IIO driver updates from Greg KH: "Here is the big staging and IIO driver update for 4.14-rc1. Lots of staging driver fixes and cleanups, including some reorginizing of the lustre header files to try to impose some sanity on what is, and what is not, the uapi for that filesystem. There are some tty core changes in here as well, as the speakup drivers need them, and that's ok with me, they are sane and the speakup code is getting nicer because of it. There is also the addition of the obiligatory new wifi driver, just because it has been a release or two since we added our last one... Other than that, lots and lots of small coding style fixes, as usual. All of these have been in linux-next for a while with no reported issues" * tag 'staging-4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (612 commits) staging:rtl8188eu:core Fix remove unneccessary else block staging: typec: fusb302: make structure fusb302_psy_desc static staging: unisys: visorbus: make two functions static staging: fsl-dpaa2/eth: fix off-by-one FD ctrl bitmaks staging: r8822be: Simplify deinit_priv() staging: r8822be: Remove some dead code staging: vboxvideo: Use CONFIG_DRM_KMS_FB_HELPER to check for fbdefio availability staging:rtl8188eu Fix comparison to NULL staging: rts5208: rename mmc_ddr_tunning_rx_cmd to mmc_ddr_tuning_rx_cmd Staging: Pi433: style fix - tabs and spaces staging: pi433: fix spelling mistake: "preample" -> "preamble" staging:rtl8188eu:core Fix Code Indent staging: typec: fusb302: Export current-limit through a power_supply class dev staging: typec: fusb302: Add support for USB2 charger detection through extcon staging: typec: fusb302: Use client->irq as irq if set staging: typec: fusb302: Get max snk mv/ma/mw from device-properties staging: typec: fusb302: Set max supply voltage to 5V staging: typec: tcpm: Add get_current_limit tcpc_dev callback staging:rtl8188eu Use __func__ instead of function name staging: lustre: coding style fixes found by checkpatch.pl ...
2017-09-05media: staging: atomisp: sh_css_calloc shall return a pointer to the ↵Sergei A. Trusov
allocated space The calloc function returns either a null pointer or a pointer to the allocated space. Add the second case that is missed. Fixes: da22013f7df4 ("atomisp: remove indirection from sh_css_malloc") Signed-off-by: Sergei A. Trusov <sergei.a.trusov@ya.ru> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-04lustre: switch to kernel_writeChristoph Hellwig
Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-09-04serial2002: switch serial2002_tty_write to kernel_{read/write}Christoph Hellwig
Instead of playing games with the address limit. This also gains us proper usage of the write counter, time stamp updates and kvec validation. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-09-04ashmem: switch to ->read_iterChristoph Hellwig
And use the proper VFS helper for using the backing file. Also make sure we hold ashmem_lock while updating f_pos to make sure that it's not racy. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-09-03Merge tag 'drm-for-v4.14' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds
Pull drm updates from Dave Airlie: "This is the main drm pull request for 4.14 merge window. I'm sending this early, as my continuing journey into fatherhood is occurring really soon now, I'm going to be mostly useless for the next couple of weeks, though I may be able to read email, I doubt I'll be doing much patch applications or git sending. If anything urgent pops up I've asked Daniel/Jani/Alex/Sean to try and direct stuff towards you. Outside drm changes: Some rcar-du updates that touch the V4L tree, all acks should be in place. It adds one export to the radix tree code for new i915 use case. There are some minor AGP cleanups (don't see that too often). Changes to the vbox driver in staging to avoid breaking compilation. Summary: core: - Atomic helper fixes - Atomic UAPI fixes - Add YCBCR 4:2:0 support - Drop set_busid hook - Refactor fb_helper locking - Remove a bunch of internal APIs - Add a bunch of better default handlers - Format modifier/blob plane property added - More internal header refactoring - Make more internal API names consistent - Enhanced syncobj APIs (wait/signal/reset/create signalled) bridge: - Add Synopsys Designware MIPI DSI host bridge driver tiny: - Add Pervasive Displays RePaper displays - Add support for LEGO MINDSTORMS EV3 LCD i915: - Lots of GEN10/CNL support patches - drm syncobj support - Skylake+ watermark refactoring - GVT vGPU 48-bit ppgtt support - GVT performance improvements - NOA change ioctl - CCS (color compression) scanout support - GPU reset improvements amdgpu: - Initial hugepage support - BO migration logic rework - Vega10 improvements - Powerplay fixes - Stop reprogramming the MC - Fixes for ACP audio on stoney - SR-IOV fixes/improvements - Command submission overhead improvements amdkfd: - Non-dGPU upstreaming patches - Scratch VA ioctl - Image tiling modes - Update PM4 headers for new firmware - Drop all BUG_ONs. nouveau: - GP108 modesetting support. - Disable MSI on big endian. vmwgfx: - Add fence fd support. msm: - Runtime PM improvements exynos: - NV12MT support - Refactor KMS drivers imx-drm: - Lock scanout channel to improve memory bw - Cleanups etnaviv: - GEM object population fixes tegra: - Prep work for Tegra186 support - PRIME mmap support sunxi: - HDMI support improvements - HDMI CEC support omapdrm: - HDMI hotplug IRQ support - Big driver cleanup - OMAP5 DSI support rcar-du: - vblank fixes - VSP1 updates arcgpu: - Minor fixes stm: - Add STM32 DSI controller driver dw_hdmi: - Add support for Rockchip RK3399 - HDMI CEC support atmel-hlcdc: - Add 8-bit color support vc4: - Atomic fixes - New ioctl to attach a label to a buffer object - HDMI CEC support - Allow userspace to dictate rendering order on submit ioctl" * tag 'drm-for-v4.14' of git://people.freedesktop.org/~airlied/linux: (1074 commits) drm/syncobj: Add a signal ioctl (v3) drm/syncobj: Add a reset ioctl (v3) drm/syncobj: Add a syncobj_array_find helper drm/syncobj: Allow wait for submit and signal behavior (v5) drm/syncobj: Add a CREATE_SIGNALED flag drm/syncobj: Add a callback mechanism for replace_fence (v3) drm/syncobj: add sync obj wait interface. (v8) i915: Use drm_syncobj_fence_get drm/syncobj: Add a race-free drm_syncobj_fence_get helper (v2) drm/syncobj: Rename fence_get to find_fence drm: kirin: Add mode_valid logic to avoid mode clocks we can't generate drm/vmwgfx: Bump the version for fence FD support drm/vmwgfx: Add export fence to file descriptor support drm/vmwgfx: Add support for imported Fence File Descriptor drm/vmwgfx: Prepare to support fence fd drm/vmwgfx: Fix incorrect command header offset at restart drm/vmwgfx: Support the NOP_ERROR command drm/vmwgfx: Restart command buffers after errors drm/vmwgfx: Move irq bottom half processing to threads drm/vmwgfx: Don't use drm_irq_[un]install ...
2017-09-01Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Three cases of simple overlapping changes. Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-01staging:rtl8188eu:core Fix remove unneccessary else blockJanani Sankara Babu
This patch removes the unwanted braces and else statement inside the function 'SecIsInPMKIDList' Signed-off-by: Janani Sankara Babu <jananis37@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-09-01staging: typec: fusb302: make structure fusb302_psy_desc staticColin Ian King
The const structure fusb302_psy_desc is local to the source and does not need to be in global scope, so make it static. Cleans up sparse warnings symbol 'fusb302_psy_desc' was not declared. Should it be static? Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-09-01staging: unisys: visorbus: make two functions staticColin Ian King
The functions sig_queue_offset and sig_data_offset are local to the source and do not need to be in global scope, so make them static. Cleans up sparse warnings: symbol 'sig_queue_offset' was not declared. Should it be static? symbol 'sig_data_offset' was not declared. Should it be static? Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-09-01staging: fsl-dpaa2/eth: fix off-by-one FD ctrl bitmaksHoria Geantă
Fix the values of DPAA2_FD_CTRL_FSE and DPAA2_FD_CTRL_FAERR, which are shifted off by one bit. Fixes: 39163c0ce0f48 ("staging: fsl-dpaa2/eth: Errors checking update") Cc: <stable@vger.kernel.org> Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-09-01Merge tag 'nand/for-4.14' of git://git.infradead.org/l2-mtd into mtd/nextBoris Brezillon
From Boris: " This pull request contains the following core changes: * Fix memory leaks in the core * Remove unused NAND locking support * Rename nand.h into rawnand.h (preparing support for spi NANDs) * Use NAND_MAX_ID_LEN where appropriate * Fix support for 20nm Hynix chips * Fix support for Samsung and Hynix SLC NANDs and the following driver changes: * Various cleanup, improvements and fixes in the qcom driver * Fixes for bugs detected by various static code analysis tools * Fix mxc ooblayout definition * Add a new part_parsers to tmio and sharpsl platform data in order to define a custom list of partition parsers * Request the reset line in exclusive mode in the sunxi driver * Fix a build error in the orion-nand driver when compiled for ARMv4 * Allow 64-bit mvebu platforms to select the PXA3XX driver "
2017-08-31staging: r8822be: Simplify deinit_priv()Larry Finger
Now that the extraneous debugging code is removed, routine deinit_priv() clearly contains code that serves no useful purpose. A null test before a call to kfree() and a spurious cast are also removed. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Ping-Ke Shih <pkshih@realtek.com> Cc: Yan-Hsuan Chuang <yhchuang@realtek.com> Cc: Birming Chiu <birming@realtek.com> Cc: Shaofu <shaofu@realtek.com> Cc: Steven Ting <steventing@realtek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-31staging: r8822be: Remove some dead codeLarry Finger
The code found inside an #ifdef CONFIG_RTL_DEBUG ... #endif section is left over from debugging of the original driver, and should be deleted. Reported by: Andreas Ziegler <andreas.ziegler@fau.de> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Ping-Ke Shih <pkshih@realtek.com> Cc: Yan-Hsuan Chuang <yhchuang@realtek.com> Cc: Birming Chiu <birming@realtek.com> Cc: Shaofu <shaofu@realtek.com> Cc: Steven Ting <steventing@realtek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-31staging: vboxvideo: Use CONFIG_DRM_KMS_FB_HELPER to check for fbdefio ↵Hans de Goede
availability Checking for CONFIG_FB_DEFERRED_IO is not the right thing to do since the fbdev code may be built as a module while vboxvideo is builtin. This can only happen when DRM_KMS_FB_HELPER is not set: a) DRM_VBOXVIDEO selects DRM_KMS_HELPER b) DRM_KMS_FB_HELPER depends on DRM_KMS_HELPER c) DRM_KMS_FB_HELPER selects FB_DEFERRED_IO So when DRM_KMS_FB_HELPER is set and vboxvideo is builtin then FB_DEFERRED_IO must be builtin too. This commit moves the #ifdefs around fbdefio code over to CONFIG_DRM_KMS_FB_HELPER, as other drm drivers already do, fixing: drivers/staging/vboxvideo/vbox_fb.o: In function `vbox_fbdev_fini': vbox_fb.c:(.text+0x36): undefined reference to `fb_deferred_io_cleanup' Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-31staging:rtl8188eu Fix comparison to NULLJanani Sankara Babu
This patch replaces the comparison of variable say x to NULL with '!x' signed-off-by: Janani Sankara Babu <jananis37@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-31staging: rts5208: rename mmc_ddr_tunning_rx_cmd to mmc_ddr_tuning_rx_cmdColin Ian King
Trival fix to spelling mistake in function name Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-31Staging: Pi433: style fix - tabs and spacesDerek Robson
Fixed checkpatch errors, spaces before tabs. Found using checkpatch. Signed-off-by: Derek Robson <robsonde@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-31staging: pi433: fix spelling mistake: "preample" -> "preamble"Colin Ian King
Trivial fix to spelling mistake in dev_dbg message Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-31staging:rtl8188eu:core Fix Code IndentJanani Sankara Babu
This patch solves the code indentation issue inside the if block Signed-off-by: Janani Sankara Babu <jananis37@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-31staging: typec: fusb302: Export current-limit through a power_supply class devHans de Goede
The fusb302 Type-C port-controller cannot control the current-limit directly, so we need to exported the limit so that another driver (e.g. the charger driver) can pick the limit up and configure the system accordingly. The power-supply subsys already provides infrastructure for this, power-supply devices have the notion of being supplied by another power-supply and have properties through which we can export the current-limit. Register a power_supply and export the current-limit through the power_supply's current-max property. Cc: "Yueyao (Nathan) Zhu" <yueyao@google.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-31staging: typec: fusb302: Add support for USB2 charger detection through extconHans de Goede
The fusb302 port-controller relies on an external device doing USB2 charger-type detection. The Intel Whiskey Cove PMIC with which the fusb302 is combined on some X86/ACPI platforms already has a charger-type detection driver which uses extcon to communicate the detected charger-type. Rather then inventing a new API for USB2 charger-type detection specifically for use with the tcpm code, this commit simply re-uses the existing extcon API and uses that do USB2 charger detection. Note that the "fcs,extcon-name" property name is only for kernel internal use by X86/ACPI platform code and as such is NOT documented in the fusb302 devicetree bindings. Cc: "Yueyao (Nathan) Zhu" <yueyao@google.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-31staging: typec: fusb302: Use client->irq as irq if setHans de Goede
The fusb302 is also used on x86 systems where the platform code sets the irq in client->irq and there is no gpio named fcs,int_n. Cc: "Yueyao (Nathan) Zhu" <yueyao@google.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-31staging: typec: fusb302: Get max snk mv/ma/mw from device-propertiesHans de Goede
This is board specific info so it should come from board config, such as devicetree. I've chosen to prefix these with "fcs," treating them as fusb302 driver specific for now. We may want to revisit this and replace these with properties which are part of a (to be written) generic type-c controller devicetree binding. Since this commit adds new dt-properties it also adds devicetree-bindings documentation (which so far was absent for the fusb302 driver). Cc: Rob Herring <robh+dt@kernel.org> Cc: Frank Rowand <frowand.list@gmail.com> Cc: devicetree@vger.kernel.org Cc: "Yueyao (Nathan) Zhu" <yueyao@google.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Rob Herring <robh@kernel.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-31staging: typec: fusb302: Set max supply voltage to 5VHans de Goede
Anything higher then 5V may damage hardware not capable of it, so the only sane default here is 5V. If a board is able to handle a higher voltage that should come from board specific data such as device-tree and not be hard coded into the fusb302 code. Cc: "Yueyao (Nathan) Zhu" <yueyao@google.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-31staging: typec: tcpm: Add get_current_limit tcpc_dev callbackHans de Goede
A Rp signalling the default current limit indicates that we're possibly connected to an USB2 power-source. In some cases the type-c port-controller may provide the capability to detect the current-limit in this case, through e.g. BC1.2 detection. This commit adds an optional get_current_limit tcpc_dev callback which allows the port-controller to provide current-limit detection for when the CC pin is pulled up with Rp. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>