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2016-04-19hwmon: (it87) Use is_visible for temperature sensorsGuenter Roeck1-51/+36
Simplify code and reduce object size by more than 200 bytes on x86_64. Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-04-19hwmon: (it87) Use is_visible for voltage sensorsGuenter Roeck1-68/+56
Simplify code and reduce object size by more than 300 bytes on x86_64. Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-04-19hwmon: (it87) Rearrange code to avoid forward declarationsGuenter Roeck1-336/+327
Cleanup only, no functional change. Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-04-19hwmon: (it87) Add support for second Super-IO chipGuenter Roeck1-15/+34
The Super-IO chip can also reside at SIO address 0x4e, and there can be two Super-IO chips in the system. Add support for it. Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-04-19hwmon: (it87) Pass SIO base address as parameter to superio functionsGuenter Roeck1-65/+72
This will let us support more than one chip on different SIO addresses with the same driver. Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-04-19hwmon: (it87) Don't use pdev as static driver variableGuenter Roeck1-3/+5
Using the same varible name for function names and as static variable invites misuse and prevents us from adding support for a second chip. Rename pdev to it87_pdev and limit its use to where it is needed. Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-04-19hwmon: (it87) Simplify error return in it87_device_addGuenter Roeck1-7/+3
Return directly on errors if there is no cleanup necessary. Don't create an error message on memory allocation errors. Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-04-19hwmon: (it87) Add support for second pwm frequency registerGuenter Roeck1-31/+69
Recent chips have a separate register to select the pwm2 frequency. Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-04-19hwmon: (it87) Add support for all pwm channels on IT8620EGuenter Roeck1-20/+94
IT8620E supports up to 6 pwm channels. Add support for it. Also check if fan tachometers 4..6 are enabled before instantiating the respective sysfs attributes. Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-04-19hwmon: (it87) Add feature flag for AVCC3 supportGuenter Roeck1-8/+13
AVCC3 is supported on IT8620E, similar to IT8603E. Add feature flag to indicate AVCC3 support. Don't enable it for now on IT8620E since it is unclear if this chip supports it correctly. Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-04-19hwmon: (fam15h_power) Add platform check functionHuang Rui1-2/+7
This patch adds a platform check function to make code more readable. Signed-off-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-04-19hwmon: (fam15h_power) Add documentation for TDP and accumulated power algorithmHuang Rui1-1/+1
This patch adds the description to explain the TDP reporting mechanism and accumulated power algorithm. Signed-off-by: Huang Rui <ray.huang@amd.com> Cc: Borislav Petkov <bp@alien8.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-04-19hwmon: (fam15h_power) Introduce a cpu accumulated power reporting algorithmHuang Rui1-4/+124
This patch introduces an algorithm that computes the average power by reading a delta value of “core power accumulator” register during measurement interval, and then dividing delta value by the length of the time interval. User is able to use power1_average entry to measure the processor power consumption and power1_average_interval entry to set the interval. A simple example: ray@hr-ub:~/tip$ sensors fam15h_power-pci-00c4 Adapter: PCI adapter power1: 19.58 mW (avg = 2.55 mW, interval = 0.01 s) (crit = 15.00 W) ... The result is current average processor power consumption in 10 millisecond. The unit of the result is uWatt. Suggested-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Huang Rui <ray.huang@amd.com> Cc: Borislav Petkov <bp@alien8.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-04-19hwmon: (fam15h_power) Add ptsc counter value for accumulated powerHuang Rui1-0/+4
PTSC is the performance timestamp counter value in a cpu core and the cores in one compute unit have the fixed frequency. So it picks up the performance timestamp counter value of the first core per compute unit to measure the interval for average power per compute unit. Signed-off-by: Huang Rui <ray.huang@amd.com> Cc: Borislav Petkov <bp@alien8.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-04-19hwmon: (fam15h_power) Add compute unit accumulated powerHuang Rui1-1/+71
This patch adds a member in fam15h_power_data which specifies the compute unit accumulated power. It adds do_read_registers_on_cu to do all the read to all MSRs and run it on one of the online cores on each compute unit with smp_call_function_many(). This behavior can decrease IPI numbers. Suggested-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-04-19hwmon: (fam15h_power) Add CPU_SUP_AMD as the dependenceHuang Rui1-1/+1
This patch adds CONFIG_CPU_SUP_AMD as the dependence of fam15h_power driver. Because the following patch will use the interface from x86/kernel/cpu/amd.c. Otherwise, the below error might be encountered: All errors (new ones prefixed by >>): drivers/built-in.o: In function `fam15h_power_probe': >> fam15h_power.c:(.text+0x26e3a3): undefined reference to >> `amd_get_cores_per_cu' fam15h_power.c:(.text+0x26e41e): undefined reference to `amd_get_cores_per_cu' Reported-by: build test robot <lkp@intel.com> Acked-by: Borislav Petkov <bp@suse.de> Signed-off-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-04-19hwmon: (max31722) Add support for MAX31722/MAX31723 temperature sensorsTiberiu Breana3-0/+176
Add basic support for the Maxim Integrated MAX31722/MAX31723 SPI temperature sensors / thermostats. Includes: - ACPI support; - raw temperature readings; - power management Datasheet: https://datasheets.maximintegrated.com/en/ds/MAX31722-MAX31723.pdf Signed-off-by: Tiberiu Breana <tiberiu.a.breana@intel.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-04-19hwmon: (ads7828) Enable internal referenceAkshay Bhat1-0/+10
On ads7828 the internal reference defaults to off upon power up. When using internal reference, it needs to be turned on and the voltage needs to settle before normal conversion cycle can be started. Hence perform a dummy read in the probe to enable the internal reference allowing the voltage to settle before performing a normal read. Without this fix, the first read from the ADC when using internal reference always returns incorrect data. Signed-off-by: Akshay Bhat <akshay.bhat@timesys.com> Cc: stable@vger.kernel.org # v4.1+ Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-04-03v4l2-mc: avoid warning about unused variableLinus Torvalds1-1/+1
Commit 840f5b0572ea ("media: au0828 disable tuner to demod link in au0828_media_device_register()") removed all uses of the 'dtv_demod', but left the variable itself around. Remove it. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-04-03Merge tag 'rproc-v4.6-rc1' of git://github.com/andersson/remoteprocLinus Torvalds1-2/+2
Pull remoteproc fix from Bjorn Andersson: "Fix incorrect error check in the ST remoteproc driver and advertise the newly created linux-remoteproc mailing list" * tag 'rproc-v4.6-rc1' of git://github.com/andersson/remoteproc: MAINTAINERS: Add mailing list for remote processor subsystems remoteproc: st: fix check of syscon_regmap_lookup_by_phandle() return value
2016-04-03Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pendingLinus Torvalds4-65/+28
Pull SCSI target fixes from Nicholas Bellinger: "This includes fixes from HCH for -rc1 configfs default_groups conversion changes that ended up breaking some iscsi-target default_groups, along with Sagi's ib_drain_qp() conversion for iser-target to use the common caller now available to RDMA kernel consumers in v4.6+ code" * git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: target: add a new add_wwn_groups fabrics method target: initialize the nacl base CIT begfore init_nodeacl target: remove ->fabric_cleanup_nodeacl iser-target: Use ib_drain_qp
2016-04-03Convert straggling drivers to new six-argument get_user_pages()Linus Torvalds2-3/+2
Commit d4edcf0d5695 ("mm/gup: Switch all callers of get_user_pages() to not pass tsk/mm") switched get_user_pages() callers to the simpler model where they no longer pass in the thread and mm pointer. But since then we've merged changes to a few drivers that re-introduce use of the old interface. Let's fix them up. They continued to work fine (thanks to the truly disgusting macros introduced in commit cde70140fed8: "mm/gup: Overload get_user_pages() functions"), but cause unnecessary build noise. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-04-02Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds45-460/+584
Pull networking fixes from David Miller: 1) Missing device reference in IPSEC input path results in crashes during device unregistration. From Subash Abhinov Kasiviswanathan. 2) Per-queue ISR register writes not being done properly in macb driver, from Cyrille Pitchen. 3) Stats accounting bugs in bcmgenet, from Patri Gynther. 4) Lightweight tunnel's TTL and TOS were swapped in netlink dumps, from Quentin Armitage. 5) SXGBE driver has off-by-one in probe error paths, from Rasmus Villemoes. 6) Fix race in save/swap/delete options in netfilter ipset, from Vishwanath Pai. 7) Ageing time of bridge not set properly when not operating over a switchdev device. Fix from Haishuang Yan. 8) Fix GRO regression wrt nested FOU/GUE based tunnels, from Alexander Duyck. 9) IPV6 UDP code bumps wrong stats, from Eric Dumazet. 10) FEC driver should only access registers that actually exist on the given chipset, fix from Fabio Estevam. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (73 commits) net: mvneta: fix changing MTU when using per-cpu processing stmmac: fix MDIO settings Revert "stmmac: Fix 'eth0: No PHY found' regression" stmmac: fix TX normal DESC net: mvneta: use cache_line_size() to get cacheline size net: mvpp2: use cache_line_size() to get cacheline size net: mvpp2: fix maybe-uninitialized warning tun, bpf: fix suspicious RCU usage in tun_{attach, detach}_filter net: usb: cdc_ncm: adding Telit LE910 V2 mobile broadband card rtnl: fix msg size calculation in if_nlmsg_size() fec: Do not access unexisting register in Coldfire net: mvneta: replace MVNETA_CPU_D_CACHE_LINE_SIZE with L1_CACHE_BYTES net: mvpp2: replace MVPP2_CPU_D_CACHE_LINE_SIZE with L1_CACHE_BYTES net: dsa: mv88e6xxx: Clear the PDOWN bit on setup net: dsa: mv88e6xxx: Introduce _mv88e6xxx_phy_page_{read, write} bpf: make padding in bpf_tunnel_key explicit ipv6: udp: fix UDP_MIB_IGNOREDMULTI updates bnxt_en: Fix ethtool -a reporting. bnxt_en: Fix typo in bnxt_hwrm_set_pause_common(). bnxt_en: Implement proper firmware message padding. ...
2016-04-02Merge tag 'clk-fixes-for-linus' of ↵Linus Torvalds11-45/+45
git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk fixes from Stephen Boyd: "A handful of const updates for reset ops and a couple fixes to the newly introduced IPQ4019 clock driver" * tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: clk: qcom: ipq4019: add some fixed clocks for ddrppl and fepll clk: qcom: ipq4019: switch remaining defines to enums clk: qcom: Make reset_control_ops const clk: tegra: Make reset_control_ops const clk: sunxi: Make reset_control_ops const clk: atlas7: Make reset_control_ops const clk: rockchip: Make reset_control_ops const clk: mmp: Make reset_control_ops const clk: mediatek: Make reset_control_ops const
2016-04-02Merge tag 'pm+acpi-4.6-rc2' of ↵Linus Torvalds3-0/+61
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management and ACPI fix from Rafael J. Wysocki: "Just one fix for a nasty boot failure on some systems based on Intel Skylake that shipped with broken firmware where enabling hardware-coordinated P-states management (HWP) causes a faulty interrupt handler in SMM to be invoked and crash the system (Srinivas Pandruvada)" * tag 'pm+acpi-4.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI / processor: Request native thermal interrupt handling via _OSC
2016-04-02Merge branch 'acpi-processor'Rafael J. Wysocki3-0/+61
* acpi-processor: ACPI / processor: Request native thermal interrupt handling via _OSC
2016-04-01net: mvneta: fix changing MTU when using per-cpu processingMarcin Wojtas1-14/+16
After enabling per-cpu processing it appeared that under heavy load changing MTU can result in blocking all port's interrupts and transmitting data is not possible after the change. This commit fixes above issue by disabling percpu interrupts for the time, when TXQs and RXQs are reconfigured. Signed-off-by: Marcin Wojtas <mw@semihalf.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-01stmmac: fix MDIO settingsGiuseppe CAVALLARO3-47/+72
Initially the phy_bus_name was added to manipulate the driver name but it was recently just used to manage the fixed-link and then to take some decision at run-time. So the patch uses the is_pseudo_fixed_link and removes the phy_bus_name variable not necessary anymore. The driver can manage the mdio registration by using phy-handle, dwmac-mdio and own parameter e.g. snps,phy-addr. This patch takes care about all these possible configurations and fixes the mdio registration in case of there is a real transceiver or a switch (that needs to be managed by using fixed-link). Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Reviewed-by: Andreas Färber <afaerber@suse.de> Tested-by: Frank Schäfer <fschaefer.oss@googlemail.com> Cc: Gabriel Fernandez <gabriel.fernandez@linaro.org> Cc: Dinh Nguyen <dinh.linux@gmail.com> Cc: David S. Miller <davem@davemloft.net> Cc: Phil Reid <preid@electromag.com.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-01Revert "stmmac: Fix 'eth0: No PHY found' regression"Giuseppe CAVALLARO2-9/+11
This reverts commit 88f8b1bb41c6208f81b6a480244533ded7b59493. due to problems on GeekBox and Banana Pi M1 board when connected to a real transceiver instead of a switch via fixed-link. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Cc: Gabriel Fernandez <gabriel.fernandez@linaro.org> Cc: Andreas Färber <afaerber@suse.de> Cc: Frank Schäfer <fschaefer.oss@googlemail.com> Cc: Dinh Nguyen <dinh.linux@gmail.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-01stmmac: fix TX normal DESCGiuseppe CAVALLARO1-8/+8
This patch fixs a regression raised when test on chips that use the normal descriptor layout. In fact, no len bits were set for the TDES1 and no OWN bit inside the TDES0. Signed-off-by: Giuseppe CAVALLARO <peppe.cavallaro@st.com> Tested-by: Andreas Färber <afaerber@suse.de> Cc: Fabrice Gasnier <fabrice.gasnier@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-01net: mvneta: use cache_line_size() to get cacheline sizeJisheng Zhang1-1/+1
L1_CACHE_BYTES may not be the real cacheline size, use cache_line_size to determine the cacheline size in runtime. Signed-off-by: Jisheng Zhang <jszhang@marvell.com> Suggested-by: Marcin Wojtas <mw@semihalf.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-01net: mvpp2: use cache_line_size() to get cacheline sizeJisheng Zhang1-1/+1
L1_CACHE_BYTES may not be the real cacheline size, use cache_line_size to determine the cacheline size in runtime. Signed-off-by: Jisheng Zhang <jszhang@marvell.com> Suggested-by: Marcin Wojtas <mw@semihalf.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-01net: mvpp2: fix maybe-uninitialized warningJisheng Zhang1-1/+3
This is to fix the following maybe-uninitialized warning: drivers/net/ethernet/marvell/mvpp2.c:6007:18: warning: 'err' may be used uninitialized in this function [-Wmaybe-uninitialized] Signed-off-by: Jisheng Zhang <jszhang@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-01tun, bpf: fix suspicious RCU usage in tun_{attach, detach}_filterDaniel Borkmann1-3/+5
Sasha Levin reported a suspicious rcu_dereference_protected() warning found while fuzzing with trinity that is similar to this one: [ 52.765684] net/core/filter.c:2262 suspicious rcu_dereference_protected() usage! [ 52.765688] other info that might help us debug this: [ 52.765695] rcu_scheduler_active = 1, debug_locks = 1 [ 52.765701] 1 lock held by a.out/1525: [ 52.765704] #0: (rtnl_mutex){+.+.+.}, at: [<ffffffff816a64b7>] rtnl_lock+0x17/0x20 [ 52.765721] stack backtrace: [ 52.765728] CPU: 1 PID: 1525 Comm: a.out Not tainted 4.5.0+ #264 [...] [ 52.765768] Call Trace: [ 52.765775] [<ffffffff813e488d>] dump_stack+0x85/0xc8 [ 52.765784] [<ffffffff810f2fa5>] lockdep_rcu_suspicious+0xd5/0x110 [ 52.765792] [<ffffffff816afdc2>] sk_detach_filter+0x82/0x90 [ 52.765801] [<ffffffffa0883425>] tun_detach_filter+0x35/0x90 [tun] [ 52.765810] [<ffffffffa0884ed4>] __tun_chr_ioctl+0x354/0x1130 [tun] [ 52.765818] [<ffffffff8136fed0>] ? selinux_file_ioctl+0x130/0x210 [ 52.765827] [<ffffffffa0885ce3>] tun_chr_ioctl+0x13/0x20 [tun] [ 52.765834] [<ffffffff81260ea6>] do_vfs_ioctl+0x96/0x690 [ 52.765843] [<ffffffff81364af3>] ? security_file_ioctl+0x43/0x60 [ 52.765850] [<ffffffff81261519>] SyS_ioctl+0x79/0x90 [ 52.765858] [<ffffffff81003ba2>] do_syscall_64+0x62/0x140 [ 52.765866] [<ffffffff817d563f>] entry_SYSCALL64_slow_path+0x25/0x25 Same can be triggered with PROVE_RCU (+ PROVE_RCU_REPEATEDLY) enabled from tun_attach_filter() when user space calls ioctl(tun_fd, TUN{ATTACH, DETACH}FILTER, ...) for adding/removing a BPF filter on tap devices. Since the fix in f91ff5b9ff52 ("net: sk_{detach|attach}_filter() rcu fixes") sk_attach_filter()/sk_detach_filter() now dereferences the filter with rcu_dereference_protected(), checking whether socket lock is held in control path. Since its introduction in 994051625981 ("tun: socket filter support"), tap filters are managed under RTNL lock from __tun_chr_ioctl(). Thus the sock_owned_by_user(sk) doesn't apply in this specific case and therefore triggers the false positive. Extend the BPF API with __sk_attach_filter()/__sk_detach_filter() pair that is used by tap filters and pass in lockdep_rtnl_is_held() for the rcu_dereference_protected() checks instead. Reported-by: Sasha Levin <sasha.levin@oracle.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-01Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds16-34/+152
Pull drm fixes from Dave Airlie: "Nothing too crazy in here: a bunch of AMD fixes/quirks, two msm fixes, some rockchip fixes, and a udl warning fix, along with one locking fix for displayport that seems to fix some dodgy monitors" * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm/udl: Use unlocked gem unreferencing drm/dp: move hw_mutex up the call stack drm/amdgpu: Don't move pinned BOs drm/radeon: Don't move pinned BOs drm/radeon: add a dpm quirk for all R7 370 parts drm/radeon: add another R7 370 quirk drm/rockchip: dw_hdmi: Don't call platform_set_drvdata() drm/rockchip: vop: Fix vop crtc cleanup drm/rockchip: dw_hdmi: Call drm_encoder_cleanup() in error path drm/rockchip: vop: Disable planes when disabling CRTC drm/rockchip: vop: Don't reject empty modesets drm/rockchip: cancel pending vblanks on close drm/rockchip: vop: fix crtc size in plane check drm/radeon: add a dpm quirk for sapphire Dual-X R7 370 2G D5 drm/amd: Beef up ACP Kconfig menu text drm/msm: fix typo in the !COMMON_CLK case drm/msm: fix bug after preclose removal
2016-04-01Merge branch 'for-linus' of ↵Linus Torvalds4-183/+86
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 fixes from Martin Schwidefsky: - A proper fix for the locking issue in the dasd driver - Wire up the new preadv2 nad pwritev2 system calls - Add the mark_rodata_ro function and set DEBUG_RODATA=y - A few more bug fixes. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390: wire up preadv2/pwritev2 syscalls s390/pci: PCI function group 0 is valid for clp_query_pci_fn s390/crypto: provide correct file mode at device register. s390/mm: handle PTE-mapped tail pages in fast gup s390: add DEBUG_RODATA support s390: disable postinit-readonly for now s390/dasd: reorder lcu and device lock s390/cpum_sf: Fix cpu hotplug notifier transitions s390/cpum_cf: Fix missing cpu hotplug notifier transition
2016-04-01drm/udl: Use unlocked gem unreferencingDaniel Vetter2-2/+2
For drm_gem_object_unreference callers are required to hold dev->struct_mutex, which these paths don't. Enforcing this requirement has become a bit more strict with commit ef4c6270bf2867e2f8032e9614d1a8cfc6c71663 Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Thu Oct 15 09:36:25 2015 +0200 drm/gem: Check locking in drm_gem_object_unreference Cc: stable@vger.kernel.org Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-04-01drm/dp: move hw_mutex up the call stackRob Clark1-10/+17
1) don't let other threads trying to bang on aux channel interrupt the defer timeout/logic 2) don't let other threads interrupt the i2c over aux logic Technically, according to people who actually have the DP spec, this should not be required. In practice, it makes some troublesome Dell monitor (and perhaps others) work, so probably a case of "It's compliant if it works with windows" on the hw vendor's part.. v2: rebased to come before DPCD/AUX logging patch for easier backport to stable branches. Reported-by: Dave Wysochanski <dwysocha@redhat.com> Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1274157 Cc: stable@vger.kernel.org Signed-off-by: Rob Clark <robdclark@gmail.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-04-01Merge branch 'drm-rockchip-next-fixes-2016-03-28' of ↵Dave Airlie4-15/+100
https://github.com/markyzq/kernel-drm-rockchip into drm-fixes bunch of rockchip fixes. * 'drm-rockchip-next-fixes-2016-03-28' of https://github.com/markyzq/kernel-drm-rockchip: drm/rockchip: dw_hdmi: Don't call platform_set_drvdata() drm/rockchip: vop: Fix vop crtc cleanup drm/rockchip: dw_hdmi: Call drm_encoder_cleanup() in error path drm/rockchip: vop: Disable planes when disabling CRTC drm/rockchip: vop: Don't reject empty modesets drm/rockchip: cancel pending vblanks on close drm/rockchip: vop: fix crtc size in plane check
2016-04-01Merge branch 'msm-fixes-4.6-rc1' of ↵Dave Airlie3-5/+1
git://people.freedesktop.org/~robclark/linux into drm-fixes two minor msm fixes. * 'msm-fixes-4.6-rc1' of git://people.freedesktop.org/~robclark/linux: drm/msm: fix typo in the !COMMON_CLK case drm/msm: fix bug after preclose removal
2016-04-01Merge branch 'drm-next-4.6' of git://people.freedesktop.org/~agd5f/linux ↵Dave Airlie6-2/+32
into drm-fixes Just a few fixes for 4.6 this week: - Add some SI DPM quirks - Improve the ACP Kconfig text - Additional BO pinning checks * 'drm-next-4.6' of git://people.freedesktop.org/~agd5f/linux: drm/amdgpu: Don't move pinned BOs drm/radeon: Don't move pinned BOs drm/radeon: add a dpm quirk for all R7 370 parts drm/radeon: add another R7 370 quirk drm/radeon: add a dpm quirk for sapphire Dual-X R7 370 2G D5 drm/amd: Beef up ACP Kconfig menu text
2016-04-01net: usb: cdc_ncm: adding Telit LE910 V2 mobile broadband cardDaniele Palmas1-0/+7
Telit LE910 V2 is a mobile broadband card with no ARP capabilities: the patch makes this device to use wwan_noarp_info struct Signed-off-by: Daniele Palmas <dnlplm@gmail.com> Reviewed-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-31fec: Do not access unexisting register in ColdfireFabio Estevam1-1/+1
Commit 55cd48c821de ("net: fec: stop the "rcv is not +last, " error messages") introduces a write to a register that does not exist in Coldfire. Move the FEC_FTRL register access inside the FEC_QUIRK_HAS_RACC 'if' block, so that we guarantee it will not be used on Coldfire CPUs. Reported-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-31net: mvneta: replace MVNETA_CPU_D_CACHE_LINE_SIZE with L1_CACHE_BYTESJisheng Zhang1-9/+1
The mvneta is also used in some Marvell berlin family SoCs which may have 64bytes cacheline size. Replace the MVNETA_CPU_D_CACHE_LINE_SIZE usage with L1_CACHE_BYTES. And since dma_alloc_coherent() is always cacheline size aligned, so remove the align checks. Signed-off-by: Jisheng Zhang <jszhang@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-31net: mvpp2: replace MVPP2_CPU_D_CACHE_LINE_SIZE with L1_CACHE_BYTESJisheng Zhang1-13/+1
The mvpp2 ip maybe used in SoCs which may have have 64bytes cacheline size. Replace the MVPP2_CPU_D_CACHE_LINE_SIZE with L1_CACHE_BYTES. And since dma_alloc_coherent() is always cacheline size aligned, so remove the align checks. Signed-off-by: Jisheng Zhang <jszhang@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-31net: dsa: mv88e6xxx: Clear the PDOWN bit on setupPatrick Uiterwijk2-0/+44
Some of the vendor-specific bootloaders set up this part of the initialization for us, so this was never added. However, since upstream bootloaders don't initialize the chip specifically, they leave the fiber MII's PDOWN flag set, which means that the CPU port doesn't connect. This patch checks whether this flag has been clear prior by something else, and if not make us clear it. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Patrick Uiterwijk <patrick@puiterwijk.org> Tested-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-31net: dsa: mv88e6xxx: Introduce _mv88e6xxx_phy_page_{read, write}Patrick Uiterwijk1-13/+36
Add versions of the phy_page_read and _write functions to be used in a context where the SMI mutex is held. Tested-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: Patrick Uiterwijk <patrick@puiterwijk.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-31Merge branch '10GbE' of ↵David S. Miller9-121/+107
git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-queue Jeff Kirsher says: ==================== Intel Wired LAN Driver Updates 2016-03-29 This series contains fixes to ixgbe and ixgbevf. Tushar fixes an issue which was introduced with an earlier commit, where hardware register RAR0 default MAC address does not get set properly. Alex fixes two issues, first being the VXLAN port number should be stored in network order instead of in host order. The second fix corrects the ATR code to handle IPv6 extension headers. The issue was ATR code was assuming that it would be able to use tcp_hdr for every TCP frame that came through, but that is not the case, which resulted in bad filters being setup. Mark fixes a use of usleep_range() to udelay() in the case where a lock is being held. Stefan fixes the offline self tests where ndo_stop() should be used instead of ndo_close(), which causes IFF_UP to be cleared and interface routes get removed. Emil fixes the error case where we need to return an error when a MAC address change is rejected by the PF. This helps prevent the user from modifying the MAC address when the operation is not permitted. Sridhar provides three fixes for ixgbe, all dealing with traffic class offload handling. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-31Merge tag 'gpio-v4.6-2' of ↵Linus Torvalds2-5/+9
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull GPIO fixes from Linus Walleij: "Here are two GPIO fixes for the v4.6 series, both in drivers: - Prevent NULL dereference in the Xgene driver - Fix an uninitialized spinlock in the menz127 driver" * tag 'gpio-v4.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: gpio: xgene: Prevent NULL pointer dereference gpio: menz127: Drop lock field from struct men_z127_gpio
2016-03-31Merge branch 'libnvdimm-for-next' of ↵Linus Torvalds1-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm Pull nvdimm mcsafe_memcpy use from Dan Williams: "Now that mcsafe_memcpy() has landed, and the return value was been clarified in commit cbf8b5a2b649 ("x86/mm, x86/mce: Fix return type/value for memcpy_mcsafe()"), let's hook up its primary usage in the pmem driver. The compilation problems from the initial posting have been fixed, this has appeared in a -next release with no reported issues, and it picked up an ack from Ingo. There is no pressing need to merge this in 4.6- rc2. However, if we wait until 4.7 the new memcpy_mcsafe() capability will ship without a user in 4.6-final" * 'libnvdimm-for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: x86, pmem: use memcpy_mcsafe() for memcpy_from_pmem()
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