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2015-06-04ARM: at91/dt: kizbox: fix mismatch LED PWM deviceGaël PORTAY1-1/+1
The network_red LED uses the 4th PWM device. Signed-off-by: Gaël PORTAY <g.portay@overkiz.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-06-04ARM: at91/dt: Add Acme Arietta G25Alexandre Belloni2-0/+80
Add a minimum Device Tree for Acme Arietta G25. http://acme.systems/arietta Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Sergio Tanzilli <tanzilli@acmesystems.it> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-06-04ARM: at91/dt: sama5d4 xplained: use stdout-pathAlexandre Belloni1-1/+2
Use stdout-path to specify the console and remove the console argument from the kernel command line. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-06-04ARM: at91/dt: sama5d4ek: use stdout-pathAlexandre Belloni1-1/+2
Use stdout-path to specify the console and remove the console argument from the kernel command line. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-06-04ARM: at91/dt: sama5d3 xplained: use stdout-pathAlexandre Belloni1-1/+1
Use stdout-path to specify the console and remove the bootargs. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-06-04ARM: at91/dt: sama5d3xek: use stdout-pathAlexandre Belloni1-1/+2
Use stdout-path to specify the console and remove the console argument from the kernel command line. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-06-04ARM: at91/dt: at91sam9x5ek: use stdout-pathAlexandre Belloni1-1/+2
Use stdout-path to specify the console and remove the console argument from the kernel command line. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-06-04ARM: at91/dt: at91sam9rlek: use stdout-pathAlexandre Belloni1-1/+2
Use stdout-path to specify the console and remove the console argument from the kernel command line. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-06-04ARM: at91/dt: at91sam9n12ek: use stdout-pathAlexandre Belloni1-1/+2
Use stdout-path to specify the console and remove the console argument from the kernel command line. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-06-04ARM: at91/dt: at91sam9m10g45ek use stdout-pathAlexandre Belloni1-1/+2
Use stdout-path to specify the console and remove the console argument from the kernel command line. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-06-04ARM: at91/dt: at91sam9g20ek: use stdout-pathAlexandre Belloni1-1/+2
Use stdout-path to specify the console and remove the console argument from the kernel command line. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-06-04ARM: at91/dt: at91sam9263ek: use stdout-pathAlexandre Belloni1-1/+2
Use stdout-path to specify the console and remove the console argument from the kernel command line. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-06-04ARM: at91/dt: at91sam9261ek: use stdout-pathAlexandre Belloni1-1/+2
Use stdout-path to specify the console and remove the console argument from the kernel command line. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-06-04ARM: at91/dt: at91rm9200ek: use stdout-pathAlexandre Belloni1-0/+4
Use stdout-path to specify the console. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-06-04ARM: at91/dt: kizbox: use stdout-pathAlexandre Belloni3-3/+3
The kizbox dts are using the deprecated linux,stdout-path. Replace those by stdout-path. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Gaël PORTAY <g.portay@overkiz.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-06-04ARM: at91/dt: at91sam9rlek: add RTCAlexandre Belloni1-0/+4
Add RTC support to the at91sam9rlek. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-06-04ARM: at91/dt: at91sam9rl: fix rtc nodeAlexandre Belloni1-7/+8
The RTC lives at 0xfffffe00. Also reorder the node properly. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-05-22ARM: at91/dt: remove useless usb clockBoris Brezillon9-21/+18
The ohci driver now calls clk_set_rate on the uhpck clock (which forwards set_rate requests to its parent: the usb clock). Remove useless references to usb clocks from ohci definitions. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-05-22ARM: at91/dt: remove useless uhpck clock references from ehci defintionsBoris Brezillon4-8/+8
The uhpck is useless for High-Speed communications, remove the reference to this clock in all ehci definitions. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-05-22USB: atmel: update DT bindings documentationBoris Brezillon1-0/+25
Add documentation for the missing clocks, clock-names, reg and interrupts properties. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-05-20ARM: at91/dt: at91sam9x5: fix usart1 sck pin definitionNicolas Ferre1-1/+1
SCK1 pin is pioC 29. Comment was okay. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-05-19ARM: at91/dt: sama5d4 xplained: add regulators for v(q)mmc1 suppliesLudovic Desroches1-0/+20
Add vcc_mmc1 fixed regulator to remove the 'no vmmc regulator found' warning when probing the mmc1 device. Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-05-19ARM: at91/dt: sama5d3 xplained: add fixed regulator for vmmc0Ben Dooks1-0/+9
Add fixed regulator for vmmc0 and attach the vmmc for it to the mmc0 node on the SAM5D3 Xplained board. This will remove the following warning from the kernel: atmel_mci f0000000.mmc: No vmmc regulator found Note, atmel_defconfig will need fixed regulator support enabled if this is to be used properly. Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> [use a fixed regulator instead of gpio one] Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-05-19ARM: at91/dt: sama5d3 xplained: add mmc0 vqmmc entryBen Dooks1-0/+1
The SAM5D3 Xplained device tree is missing the vqmmc node which is tied to 3.3V on the board. Add this to avoid the kernel warning that there is no vqmmc node. atmel_mci f0000000.mmc: No vqmmc regulator found Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-05-19ARM: at91/dt: sama5d3 xplained: fill in mmc1 and set it to disabledBen Dooks1-0/+11
The mmc1 channel is not populated on the SAM5D3 Xplained board, however it is enabled and therefore the driver is attaching to it. The node configuration for mmc1 is missing, so add an mmc1 node in the device tree and set its status to disabled. Also add the vmmc and the necessary slot configuration if this node were enabled to avoid the following warnings from the driver: atmel_mci f8000000.mmc: No vmmc regulator found atmel_mci f8000000.mmc: No vqmmc regulator found Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-05-19ARM: at91/dt: sama5: reduce the NFC command register mapJosh Wu2-2/+2
commit 111573ccd89b ("mtd: atmel_nand: check NFC busy flag by HSMC_SR instead of NFC cmd regs") check NFC busy by nfc SR instead of NFC cmd regs. So we don't need to map NFC cmd registers to include NFCBUSY bit. That means we only need map 0x08000000 instead of 0x10000000 for NFC cmd regs. This patch reduce the NFC cmd regs map for sama5d3 & sama5d4. Signed-off-by: Josh Wu <josh.wu@atmel.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-05-19ARM: at91/dt: sama5d4: update pinctrl rangesLudovic Desroches1-1/+2
Update the pinctrl ranges property to support pioD controller whose mapping is not contiguous with other pio controllers. Without this update, getting resource will fail, then pinctrl probe will fail too because there is a missing pio controller. Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-05-19ARM: at91/dt: sama5d3 xplained: add phy address for macb0Nicolas Ferre1-0/+6
Specify the phy address on macb0 node aka GEM. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-05-19ARM: at91/dt: sama5d4 xplained: add spi1 on j14 connectorNicolas Ferre1-0/+5
Route SPI1 on the Arduino "in the middle" spi connector. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-05-19ARM: at91/dt: sama5d4: add spi1, spi2 dt nodesSuchang Ko1-0/+60
Add sama5d4 spi1, spi2 dt nodes & pinctrl. Signed-off-by: Suchang Ko <suchangko@samul.kr> [nicolas.ferre@atmel.com: split patch, reorder & whitespace fixes] Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-05-11ARM: at91/dt: sama5d4: add uart0, uart1 dt nodesSuchang Ko1-0/+56
Add sama5d4 uart0, uart1 dt nodes, pinctrl and related aliases. Signed-off-by: Suchang Ko <suchangko@samul.kr> [nicolas.ferre@atmel.com: split patch, reorder & whitespace fixes] Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-05-11ARM: at91/dt: sama5d4: add usart0, usart1 dt nodesJosh Wu1-0/+68
Also add the pinctrl for usart0, usart1. Signed-off-by: Josh Wu <josh.wu@atmel.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-05-11ARM: at91/dt: drop deprecated mainck node from pmcGaël PORTAY3-18/+0
The clock-frequency property became obsolete since the rework of the main clock driver in 3.16 (see commit 27cb1c2083373a44130d50d4d2fb64cf7eff2d90). It now get and uses the clock-frequency from the main_xtal node. Signed-off-by: Gaël PORTAY <g.portay@overkiz.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-05-11ARM: at91/dt: add support for kizbox2Gaël PORTAY2-0/+217
Add DT file for Kizbox 2 board. This board is based on Atmel's SAMA5D31 Cortex-A5 SoC. Signed-off-by: Gaël PORTAY <g.portay@overkiz.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-05-11ARM: at91/dt: add support for kizboxminiGaël PORTAY2-0/+130
Add DT file for Kizbox mini board. This board is based on Atmel's AT91SAM9G25 SoC. Signed-off-by: Gaël PORTAY <g.portay@overkiz.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-05-11ARM: at91/dt: sam9x5: add pinctrl for pwm0Gaël PORTAY1-0/+46
Defines the pinctrl configurations for PWM0. Signed-off-by: Gaël PORTAY <g.portay@overkiz.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-04-30ARM: at91/dt: at91-kizbox: update chosen nodeGaël PORTAY1-1/+2
Simplify the bootargs since the platform is booting from an initramfs and set the kernel stdout path to DBGU. Signed-off-by: Gaël PORTAY <g.portay@overkiz.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-04-30ARM: at91/dt: at91-kizbox: re-size nand partitionsGaël PORTAY1-5/+5
Re-size NAND partitions since the bootstrap is able to read volumes from an UBI image. Signed-off-by: Gaël PORTAY <g.portay@overkiz.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-04-30ARM: at91/dt: at91-kizbox: leds related changesGaël PORTAY1-19/+34
This: * moves to pwm-leds using tcb-pwm driver and * renames leds to pwm:<color>:<function>. Signed-off-by: Gaël PORTAY <g.portay@overkiz.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-04-30ARM: at91/dt: at91-kizbox: gpio-keys related changesGaël PORTAY1-5/+5
This: * fixes active level of GPIO (active high) and * renames buttons: - reset (PB_RST), and - mode to user (PB_USER). Signed-off-by: Gaël PORTAY <g.portay@overkiz.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-04-30ARM: at91/dt: at91-kizbox: user proper serial uartGaël PORTAY1-8/+4
USART3 is the only serial UART accessible. Signed-off-by: Gaël PORTAY <g.portay@overkiz.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-04-30ARM: at91/dt: at91-kizbox: sanitize fileGaël PORTAY1-34/+31
Consists in: * sorting nodes by address as possible or alphabetically, * adding myself as new maintainer and * update license. Signed-off-by: Gaël PORTAY <g.portay@overkiz.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-04-30ARM: at91/dt: kizbox: rename to at91-kizboxGaël PORTAY2-2/+2
Rename to match AT91 naming convention. Signed-off-by: Gaël PORTAY <g.portay@overkiz.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-04-26Linux 4.1-rc1Linus Torvalds1-2/+2
2015-04-26x86_64, asm: Work around AMD SYSRET SS descriptor attribute issueAndy Lutomirski5-0/+48
AMD CPUs don't reinitialize the SS descriptor on SYSRET, so SYSRET with SS == 0 results in an invalid usermode state in which SS is apparently equal to __USER_DS but causes #SS if used. Work around the issue by setting SS to __KERNEL_DS __switch_to, thus ensuring that SYSRET never happens with SS set to NULL. This was exposed by a recent vDSO cleanup. Fixes: e7d6eefaaa44 x86/vdso32/syscall.S: Do not load __USER32_DS to %ss Signed-off-by: Andy Lutomirski <luto@kernel.org> Cc: Peter Anvin <hpa@zytor.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Denys Vlasenko <vda.linux@googlemail.com> Cc: Brian Gerst <brgerst@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-04-26v4l: xilinx: fix for include file movementStephen Rothwell1-1/+1
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-04-24platform/chrome: chromeos_laptop - instantiate Atmel at primary addressDmitry Torokhov1-9/+26
The new Atmel MXT driver expects i2c client's address contain the primary (main address) of the chip, and calculates the expected bootloader address form the primary address. Unfortunately chrome_laptop does probe the devices and if touchpad (or touchscreen, or both) comes up in bootloader mode the i2c device gets instantiated with the bootloader address which confuses the driver. To work around this issue let's probe the primary address first. If the device is not detected at the primary address we'll probe alternative addresses as "dummy" devices. If any of them are found, destroy the dummy client and instantiate client with proper name at primary address still. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2015-04-24RCU pathwalk breakage when running into a symlink overmounting somethingAl Viro1-2/+4
Calling unlazy_walk() in walk_component() and do_last() when we find a symlink that needs to be followed doesn't acquire a reference to vfsmount. That's fine when the symlink is on the same vfsmount as the parent directory (which is almost always the case), but it's not always true - one _can_ manage to bind a symlink on top of something. And in such cases we end up with excessive mntput(). Cc: stable@vger.kernel.org # since 2.6.39 Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-04-24fix I_DIO_WAKEUP definitionEric Sandeen1-1/+1
I_DIO_WAKEUP is never directly used, but fix it up anyway. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-04-24direct-io: only inc/dec inode->i_dio_count for file systemsJens Axboe9-33/+50
do_blockdev_direct_IO() increments and decrements the inode ->i_dio_count for each IO operation. It does this to protect against truncate of a file. Block devices don't need this sort of protection. For a capable multiqueue setup, this atomic int is the only shared state between applications accessing the device for O_DIRECT, and it presents a scaling wall for that. In my testing, as much as 30% of system time is spent incrementing and decrementing this value. A mixed read/write workload improved from ~2.5M IOPS to ~9.6M IOPS, with better latencies too. Before: clat percentiles (usec): | 1.00th=[ 33], 5.00th=[ 34], 10.00th=[ 34], 20.00th=[ 34], | 30.00th=[ 34], 40.00th=[ 34], 50.00th=[ 35], 60.00th=[ 35], | 70.00th=[ 35], 80.00th=[ 35], 90.00th=[ 37], 95.00th=[ 80], | 99.00th=[ 98], 99.50th=[ 151], 99.90th=[ 155], 99.95th=[ 155], | 99.99th=[ 165] After: clat percentiles (usec): | 1.00th=[ 95], 5.00th=[ 108], 10.00th=[ 129], 20.00th=[ 149], | 30.00th=[ 155], 40.00th=[ 161], 50.00th=[ 167], 60.00th=[ 171], | 70.00th=[ 177], 80.00th=[ 185], 90.00th=[ 201], 95.00th=[ 270], | 99.00th=[ 390], 99.50th=[ 398], 99.90th=[ 418], 99.95th=[ 422], | 99.99th=[ 438] In other setups, Robert Elliott reported seeing good performance improvements: https://lkml.org/lkml/2015/4/3/557 The more applications accessing the device, the worse it gets. Add a new direct-io flags, DIO_SKIP_DIO_COUNT, which tells do_blockdev_direct_IO() that it need not worry about incrementing or decrementing the inode i_dio_count for this caller. Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Christoph Hellwig <hch@lst.de> Cc: Theodore Ts'o <tytso@mit.edu> Cc: Elliott, Robert (Server Storage) <elliott@hp.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Jens Axboe <axboe@fb.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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