- 24 Sep, 2016 40 commits
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Ard Biesheuvel authored
commit 0bd22235 upstream. When calling .import() on a cryptd ahash_request, the structure members that describe the child transform in the shash_desc need to be initialized like they are when calling .init() Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Will Deacon authored
commit 872c63fb upstream. smp_mb__before_spinlock() is intended to upgrade a spin_lock() operation to a full barrier, such that prior stores are ordered with respect to loads and stores occuring inside the critical section. Unfortunately, the core code defines the barrier as smp_wmb(), which is insufficient to provide the required ordering guarantees when used in conjunction with our load-acquire-based spinlock implementation. This patch overrides the arm64 definition of smp_mb__before_spinlock() to map to a full smp_mb(). Cc: Peter Zijlstra <peterz@infradead.org> Reported-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Icenowy Zheng authored
commit 486095fa upstream. PG8, PG9 is said to be the CTS/RTS pins for UART1 according to the A23/33 datasheets. However, the function is wrongly named "uart2" in the pinctrl driver. This patch fixes this by modifying them to be named "uart1". Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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James Hartley authored
commit a32ac291 upstream. A previous patch attempted to fix the pinmuxes for mfio 84 - 89, but it omitted a change to pistachio_pin_group pistachio_groups, which results in incorrect pll_lock signals being routed. Apply the correct mux settings throughout the driver. fixes: cefc03e5 ("pinctrl: Add Pistachio SoC pin control driver") fixes: e9adb336 ("pinctrl: pistachio: fix mfio84-89 function description and pinmux.") Signed-off-by: James Hartley <james.hartley@imgtec.com> Reviewed-by: Sifan Naeem <Sifan.Naeem@imgtec.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Mikulas Patocka authored
commit 4e870e94 upstream. When dm-crypt processes writes, it allocates a new bio in crypt_alloc_buffer(). The bio is allocated from a bio set and it can have at most BIO_MAX_PAGES vector entries, however the incoming bio can be larger (e.g. if it was allocated by bcache). If the incoming bio is larger, bio_alloc_bioset() fails and an error is returned. To avoid the error, we test for a too large bio in the function crypt_map() and use dm_accept_partial_bio() to split the bio. dm_accept_partial_bio() trims the current bio to the desired size and asks DM core to send another bio with the rest of the data. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Mikulas Patocka authored
commit a5d60783 upstream. Move log_one_block()'s atomic_inc(&lc->io_blocks) before bio_alloc() to fix a bug that the target hangs if bio_alloc() fails. The error path does put_io_block(lc), so atomic_inc(&lc->io_blocks) must occur before invoking the error path to avoid underflow of lc->io_blocks. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Reviewed-by: Josef Bacik <jbacik@fb.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Vladimir Zapolskiy authored
commit 91e630d9 upstream. The kthread_run() function returns either a valid task_struct or ERR_PTR() value, check for NULL is invalid. This change fixes potential for oops, e.g. in OOM situation. Signed-off-by: Vladimir Zapolskiy <vz@mleia.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Pawel Moll authored
commit b928466b upstream. The code setting XP watchpoint comparator and mask registers should, in order to be fully compliant with specification, zero one or more most significant bits of each field. In both L cases it means zeroing bit 63. The bitmask doing this was wrong, though, zeroing bit 60 instead. Fortunately, due to a lucky coincidence, this turned out to be fairly innocent with the existing hardware. Fixed now. Signed-off-by: Pawel Moll <pawel.moll@arm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Pawel Moll authored
commit b7c1beb2 upstream. Fuzzing the CCN perf driver revealed a small but definitely dangerous mistake in the event setup code. When a cycle counter is requested, the driver should not reconfigure the events bus at all, otherwise it will corrupt (in most but the simplest cases) its configuration and may end up accessing XP array out of its bounds and corrupting control registers. Reported-by: Mark Rutland <mark.rutland@arm.com> Reviewed-by: Mark Rutland <mark.rutland@arm.com> Tested-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Pawel Moll <pawel.moll@arm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Pawel Moll authored
commit 4e486cba upstream. The "Miscellaneous Node" fell through cracks of node initialisation, as its ID is shared with HN-I. This patch treats MN as a special case (which it is), adding separate validation check for it and pre-defining the node ID in relevant events descriptions. That way one can simply run: # perf stat -a -e ccn/mn_ecbarrier/ <workload> Additionally, direction in the MN pseudo-events XP watchpoint definitions is corrected to be "TX" (1) as they are defined from the crosspoint point of view (thus barriers are transmitted from XP to MN). Signed-off-by: Pawel Moll <pawel.moll@arm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Lee Jones authored
commit 78567f13 upstream. The STiH4{07,10} platform contains some interconnect clocks which are used by various IPs. If these clocks aren't handled correctly by ST's SDHCI driver MMC will break and the following output can be observed: [ 13.916949] mmc0: Timeout waiting for hardware interrupt. [ 13.922349] sdhci: =========== REGISTER DUMP (mmc0)=========== [ 13.928175] sdhci: Sys addr: 0x00000000 | Version: 0x00001002 [ 13.933999] sdhci: Blk size: 0x00007040 | Blk cnt: 0x00000001 [ 13.939825] sdhci: Argument: 0x00fffff0 | Trn mode: 0x00000013 [ 13.945650] sdhci: Present: 0x1fff0206 | Host ctl: 0x00000011 [ 13.951475] sdhci: Power: 0x0000000f | Blk gap: 0x00000080 [ 13.957300] sdhci: Wake-up: 0x00000000 | Clock: 0x00003f07 [ 13.963126] sdhci: Timeout: 0x00000004 | Int stat: 0x00000000 [ 13.968952] sdhci: Int enab: 0x02ff008b | Sig enab: 0x02ff008b [ 13.974777] sdhci: AC12 err: 0x00000000 | Slot int: 0x00000000 [ 13.980602] sdhci: Caps: 0x21ed3281 | Caps_1: 0x00000000 [ 13.986428] sdhci: Cmd: 0x0000063a | Max curr: 0x00000000 [ 13.992252] sdhci: Host ctl2: 0x00000000 [ 13.996166] sdhci: ADMA Err: 0x00000000 | ADMA Ptr: 0x7c048200 [ 14.001990] sdhci: =========================================== [ 14.009802] mmc0: Got data interrupt 0x02000000 even though no data operation was in progress. Tested-by: Peter Griffin <peter.griffin@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org> Acked-by: Patrice Chotard <patrice.chotard@st.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Johan Hovold authored
commit 153b58ea upstream. The gpmc ranges property for NAND at CS0 was being overridden by later includes that defined gpmc ethernet nodes, effectively breaking NAND on these systems: omap-gpmc 6e000000.gpmc: /ocp/gpmc@6e000000/nand@0,0 has malformed 'reg' property Instead of redefining the NAND range in every such dtsi, define all currently used ranges in omap3-overo-base.dtsi. Fixes: 98ce6007 ("ARM: dts: overo: Support PoP NAND") Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Johan Hovold authored
commit 5e0568df upstream. The gpmc ranges property for NAND at CS0 has been broken since it was first added. This currently prevents the nand gpmc child node from being probed: omap-gpmc 6e000000.gpmc: /ocp/gpmc@6e000000/nand@0,0 has malformed 'reg' property and consequently the NAND device from being registered. Fixes: 98ce6007 ("ARM: dts: overo: Support PoP NAND") Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fabio Estevam authored
commit f065e9e4 upstream. Commit 833f2cbf ("ARM: dts: imx6: change the core clock of spdif") changed many more clocks than only the SPDIF core clock as stated in the commit message. The MLB clock has been added and this causes SPDIF regression as reported by Xavi Drudis Ferran and also in this forum post: https://forum.digikey.com/thread/34240 The MX6Q Reference Manual does not mention that MLB is a clock related to SPDIF, so change it back to a dummy clock to restore SPDIF functionality. Thanks to Ambika for providing the fix at: https://community.nxp.com/thread/387131 Fixes: 833f2cbf ("ARM: dts: imx6: change the core clock of spdif") Reported-by: Xavi Drudis Ferran <xdrudis@tinet.cat> Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Tested-by: Xavi Drudis Ferran <xdrudis@tinet.cat> Signed-off-by: Shawn Guo <shawnguo@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Sebastian Reichel authored
commit b46211d6 upstream. Add missing sysconfig/sysstatus information to OMAP3 hwmod. The information has been checked against OMAP34xx and OMAP36xx TRM. Without this change DSI block is not reset during boot, which is required for working Nokia N950 display. Signed-off-by: Sebastian Reichel <sre@kernel.org> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Simon Baatz authored
commit a7789378 upstream. Commit 148c274e ("ARM: kirkwood: ib62x0: add u-boot environment partition") split the "u-boot" partition into "u-boot" and "u-boot environment". However, instead of the size of the environment, an offset was given, resulting in overlapping partitions. Signed-off-by: Simon Baatz <gmbnomis@gmail.com> Fixes: 148c274e ("ARM: kirkwood: ib62x0: add u-boot environment partition") Cc: Jason Cooper <jason@lakedaemon.net> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Gregory Clement <gregory.clement@free-electrons.com> Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Cc: Luka Perkov <luka@openwrt.org> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Anson Huang authored
commit 8aade778 upstream. i.MX6SX has bypass PMIC ready function, as this function is normally NOT enabled on the board design, so we need to bypass the PMIC ready pin check during DSM mode resume flow, otherwise, the internal DSM resume logic will be waiting for this signal to be ready forever and cause resume fail. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Fixes: ff843d62 ("ARM: imx: add suspend support for i.mx6sx") Tested-by: Peter Chen <peter.chen@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Peter Chen authored
commit f5a49057 upstream. There is a missing BM_CLPCR_BYP_MMDC_CH0_LPM_HS setting for imx6ul, without it, the "standby" mode can't work well, the system can't be resumed. With this commit, the "standby" mode works well. Signed-off-by: Peter Chen <peter.chen@nxp.com> Cc: Anson Huang <anson.huang@nxp.com> Fixes: ee4a5f83 ("ARM: imx: add suspend/resume support for i.mx6ul") Signed-off-by: Shawn Guo <shawnguo@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Keerthy authored
commit b00ccf5b upstream. pruss hwmod RSTST register wrongly points to PWRSTCTRL register in case of am43xx. Fix the RSTST register offset value. This can lead to setting of wrong power state values for PER domain. Fixes: 1c7e224d ("ARM: OMAP2+: hwmod: AM335x: runtime register update") Signed-off-by: Keerthy <j-keerthy@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Zefan Li authored
commit 06f4e948 upstream. A new task inherits cpus_allowed and mems_allowed masks from its parent, but if someone changes cpuset's config by writing to cpuset.cpus/cpuset.mems before this new task is inserted into the cgroup's task list, the new task won't be updated accordingly. Signed-off-by: Zefan Li <lizefan@huawei.com> Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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David Daney authored
commit 1423661f upstream. The ethtool_ops .get_regs function attempts to read the nonexistent register NIC_QSET_SQ_0_7_CNM_CHG, which produces a "bus error" type OOPs. Fix by not attempting to read, and removing the definition of, NIC_QSET_SQ_0_7_CNM_CHG. A zero is written into the register dump to keep the layout unchanged. Signed-off-by: David Daney <david.daney@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Alan Stern authored
commit 08c5cd37 upstream. Some full-speed mceusb infrared transceivers contain invalid endpoint descriptors for their interrupt endpoints, with bInterval set to 0. In the past they have worked out okay with the mceusb driver, because the driver sets the bInterval field in the descriptor to 1, overwriting whatever value may have been there before. However, this approach was never sanctioned by the USB core, and in fact it does not work with xHCI controllers, because they use the bInterval value that was present when the configuration was installed. Currently usbcore uses 32 ms as the default interval if the value in the endpoint descriptor is invalid. It turns out that these IR transceivers don't work properly unless the interval is set to 10 ms or below. To work around this mceusb problem, this patch changes the endpoint-descriptor parsing routine, making the default interval value be 10 ms rather than 32 ms. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Tested-by: Wade Berrier <wberrier@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Lee Jones authored
commit 7e9d2850 upstream. The STiH4{07,10} platform contains some interconnect clocks which are used by various IPs. If this clock isn't handled correctly by ST's EHCI/OHCI drivers, their hub won't be found, the following error be shown and the result will be non-working USB: [ 97.221963] hub 2-1:1.0: hub_ext_port_status failed (err = -110) Tested-by: Peter Griffin <peter.griffin@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org> Acked-by: Patrice Chotard <patrice.chotard@st.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Clemens Gruber authored
commit 6f3c4fb6 upstream. Problems with the signal integrity of the high speed USB data lines or noise on reference ground lines can cause the i.MX6 USB controller to violate USB specs and exhibit unexpected behavior. It was observed that USBi_UI interrupts were triggered first and when isr_setup_status_phase was called, ci->status was NULL, which lead to a NULL pointer dereference kernel panic. This patch fixes the kernel panic, emits a warning once and returns -EPIPE to halt the device and let the host get stalled. It also adds a comment to point people, who are experiencing this issue, to their USB hardware design. Signed-off-by: Clemens Gruber <clemens.gruber@pqgruber.com> Signed-off-by: Peter Chen <peter.chen@nxp.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Yoshihiro Shimoda authored
commit 519d8bd4 upstream. The previous driver is possible to stop the transfer wrongly. For example: 1) An interrupt happens, but not BRDY interruption. 2) Read INTSTS0. And than state->intsts0 is not set to BRDY. 3) BRDY is set to 1 here. 4) Read BRDYSTS. 5) Clear the BRDYSTS. And then. the BRDY is cleared wrongly. Remarks: - The INTSTS0.BRDY is read only. - If any bits of BRDYSTS are set to 1, the BRDY is set to 1. - If BRDYSTS is 0, the BRDY is set to 0. So, this patch adds condition to avoid such situation. (And about NRDYSTS, this is not used for now. But, avoiding any side effects, this patch doesn't touch it.) Fixes: d5c6a1e0 ("usb: renesas_usbhs: fixup interrupt status clear method") Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Daniele Palmas authored
commit f190fd92 upstream. This patch adds support for Infineon flashloader 0x8087/0x0801. The flashloader is used in Telit LE940B modem family with Telit flashing application. Signed-off-by: Daniele Palmas <dnlplm@gmail.com> Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Jimi Damon authored
commit c8d19242 upstream. Added devices ids for acces i/o products quad and octal serial cards that make use of existing Pericom PI7C9X7954 and PI7C9X7958 configurations . Signed-off-by: Jimi Damon <jdamon@accesio.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Andy Shevchenko authored
commit 47b34d2e upstream. Since the commit c1a67b48 ("serial: 8250_pci: replace switch-case by formula for Intel MID"), the 8250 driver crashes in the byt_set_termios() function with a divide error. This is caused by the fact that a baud rate of 0 (B0) is not handled properly. Fix it by falling back to B9600 in this case. Reported-by: "Mendez Salinas, Fernando" <fernando.mendez.salinas@intel.com> Fixes: c1a67b48 ("serial: 8250_pci: replace switch-case by formula for Intel MID") Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Colin Ian King authored
commit 5dba4b14 upstream. A recent fix to iio_buffer_read_first_n_outer removed ret from being set by a return from wait_event_interruptible and also added a continue in a loop which causes the variable ret to not be set when it reaches the end of the loop. Fix this by initializing ret to zero. Also remove extraneous white space at the end of the loop. Fixes: fcf68f3c ("fix sched WARNING "do not call blocking ops when !TASK_RUNNING") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Gregor Boirie authored
commit 171c0091 upstream. 7985e7c1 ("iio: Introduce a new fractional value type") introduced a new IIO_VAL_FRACTIONAL value type meant to represent rational type numbers expressed by a numerator and denominator combination. Formating of IIO_VAL_FRACTIONAL values relies upon do_div() usage. This fails handling negative values properly since parameters are reevaluated as unsigned values. Fix this by using div_s64_rem() instead. Computed integer part will carry properly signed value. Formatted fractional part will always be positive. Fixes: 7985e7c1 ("iio: Introduce a new fractional value type") Signed-off-by: Gregor Boirie <gregor.boirie@parrot.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Linus Walleij authored
commit 307fe9dd upstream. All the scaling of the KXSD9 involves multiplication with a fraction number < 1. However the scaling value returned from IIO_INFO_SCALE was unpredictable as only the micros of the value was assigned, and not the integer part, resulting in scaling like this: $cat in_accel_scale -1057462640.011978 Fix this by assigning zero to the integer part. Tested-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Kweh, Hock Leong authored
commit 36afb176 upstream. According to IIO ABI definition, IIO_PRESSURE data output unit is kilopascal: http://lxr.free-electrons.com/source/Documentation/ABI/testing/sysfs-bus-iio This patch fix output unit of HID pressure sensor IIO driver from pascal to kilopascal to follow IIO ABI definition. Signed-off-by: Kweh, Hock Leong <hock.leong.kweh@intel.com> Reviewed-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Olof Johansson authored
commit 1c500840 upstream. In at least one known setup, the chip comes up in a state where reading the chip ID returns garbage unless it's been reset, due to noise on the wires during system boot. All supported chips have the same reset method, and based on the datasheets they all need 1.3 or 1.8ms to recover after reset. So, do the conservative thing here and always reset the chip. Signed-off-by: Olof Johansson <olof@lixom.net> Reviewed-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Anders Darander authored
commit c2ab4474 upstream. The driver always assumes that an input device has been created when reading channel 3. This causes a kernel panic when dereferencing st->ts_input. The change was introduced in commit 84882b06 ("iio: adc: at91_adc: Add support for touchscreens without TSMR"). Earlier versions only entered that part of the if-else statement if only the following flags are set: AT91_ADC_IER_XRDY | AT91_ADC_IER_YRDY | AT91_ADC_IER_PRDY Signed-off-by: Anders Darander <anders@chargestorm.se> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Lars-Peter Clausen authored
commit 7d3cc21d upstream. The data buffer for captured mode for the ad799x driver is allocated in the update_scan_mode() callback. This callback is not set in the iio_info struct for the ad7791/ad7995/ad7999, which means that the data buffer is not allocated when a captured transfer is started. As a result the driver crashes when the first sample is received. To fix this properly set the update_scan_mode() callback. Fixes: d8dca330 ("staging:iio:ad799x: Preallocate sample buffer") Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Vignesh R authored
commit 7175cce1 upstream. Now that open delay and sample delay for each channel is configurable via DT, the default IDLE_TIMEOUT value is not enough as this is calculated based on hardcoded macros. This results in driver returning EBUSY sometimes. Fix this by increasing the timeout value based on maximum value possible to open delay and sample delays for each channel. Fixes: 5dc11e81 ("iio: adc: ti_am335x_adc: make sample delay, open delay, averaging DT parameters") Signed-off-by: Vignesh R <vigneshr@ti.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Vignesh R authored
commit 90c43ec6 upstream. It is possible that two or more ADC channels can be simultaneously requested for raw samples, in which case there can be race in access to FIFO data resulting in loss of samples. If am335x_tsc_se_set_once() is called again from tiadc_read_raw(), when ADC is still acquired to sample one of the channels, the second process might be put into uninterruptible sleep state. Fix these issues, by protecting FIFO access and channel configurations with a mutex. Since tiadc_read_raw() might take anywhere between few microseconds to few milliseconds to finish execution (depending on averaging and delay values supplied via DT), its better to use mutex instead of spinlock. Fixes: 7ca6740c ("mfd: input: iio: ti_amm335x: Rework TSC/ADC synchronization") Signed-off-by: Vignesh R <vigneshr@ti.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Caesar Wang authored
commit 543852af upstream. SARADC controller needs to be reset before programming it, otherwise it will not function properly. Signed-off-by: Caesar Wang <wxt@rock-chips.com> Cc: Jonathan Cameron <jic23@kernel.org> Cc: Heiko Stuebner <heiko@sntech.de> Cc: Rob Herring <robh+dt@kernel.org> Cc: linux-iio@vger.kernel.org Cc: linux-rockchip@lists.infradead.org Tested-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Alison Schofield authored
commit f8adf645 upstream. Use the iio_pollfunc_store_time parameter during triggered buffer set-up to get valid timestamps. Signed-off-by: Alison Schofield <amsfield22@gmail.com> Cc: Daniel Baluta <daniel.baluta@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Linus Walleij authored
commit 7ac61a06 upstream. Any readings from the raw interface of the KXSD9 driver will return an empty string, because it does not return IIO_VAL_INT but rather some random value from the accelerometer to the caller. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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