This patch fixes a problem in the usbtouchscreen driver for DMC TSC-30
touch screen. Due to a missing delay between the RESET and SET_RATE
commands, the touch screen may become unresponsive during system startup or
driver loading.
According to the DMC documentation, a delay is needed after the RESET
command to allow the chip to complete its internal initialization. As this
delay is not guaranteed, we had a system where the touch screen
occasionally did not send any touch data. There was no other indication of
the problem.
The patch fixes the problem by adding a 150ms delay between the RESET and
SET_RATE commands.
Cc: stable@vger.kernel.org
Suggested-by: Jakob Mustafa <jakob.mustafa@bytecmed.com>
Signed-off-by: Bernhard Bender <bernhard.bender@bytecmed.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* bmc150_magn - add missing regmap dependency and ensure on a wrong chip
case report hte chip id rather than a previous return value.
* mmc35240 - Fill a null pointer derefrence and wrong SET / RESET logic
that results in North and South being swapped.
* mlx96014 - correct the offset value reported to userspace (wrong sign)
* vf610 - Prevent non aligned register reading.
* mcp320x - Another null pointer deference bug.
* mma8452 - change threshold type from THRESH to MAG to reflect the fact
that the sign of the signal is not known when the event is signaled.
* stk3310 - move device registert to end of probe to avoid race conditions
when coming up, check for invalid client->irq values and make it work
for both endian types of host.
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Merge tag 'iio-fixes-for-4.2c' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus
Jonathan writes:
3rd round of IIO fixes for the 4.2 cycle.
* bmc150_magn - add missing regmap dependency and ensure on a wrong chip
case report hte chip id rather than a previous return value.
* mmc35240 - Fill a null pointer derefrence and wrong SET / RESET logic
that results in North and South being swapped.
* mlx96014 - correct the offset value reported to userspace (wrong sign)
* vf610 - Prevent non aligned register reading.
* mcp320x - Another null pointer deference bug.
* mma8452 - change threshold type from THRESH to MAG to reflect the fact
that the sign of the signal is not known when the event is signaled.
* stk3310 - move device registert to end of probe to avoid race conditions
when coming up, check for invalid client->irq values and make it work
for both endian types of host.
Pull namespace fixes from Eric Biederman:
"While reading through the code of detach_mounts I realized the code
was slightly off. Testing it revealed two buggy corner cases that can
send the code of detach_mounts into an infinite loop.
Fixing the code to do the right thing removes the possibility of these
user triggered infinite loops in the code"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
mnt: In detach_mounts detach the appropriate unmounted mount
mnt: Clarify and correct the disconnect logic in umount_tree
Bugfixes and documentation fixes. Igor's patch that allows
users to tweak memory table size is borderline,
but it does fix known crashes, so I merged it.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio/vhost fixes from Michael Tsirkin:
"Bugfixes and documentation fixes.
Igor's patch that allows users to tweak memory table size is
borderline, but it does fix known crashes, so I merged it"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
vhost: add max_mem_regions module parameter
vhost: extend memory regions allocation to vmalloc
9p/trans_virtio: reset virtio device on remove
virtio/s390: rename drivers/s390/kvm -> drivers/s390/virtio
MAINTAINERS: separate section for s390 virtio drivers
virtio: define virtio_pci_cfg_cap in header.
virtio: Fix typecast of pointer in vring_init()
virtio scsi: fix unused variable warning
vhost: use binary search instead of linear in find_region()
virtio_net: document VIRTIO_NET_CTRL_GUEST_OFFLOADS
bio_associate_blkcg(), bio_associate_current() and wbc_account_io()
are used to implement cgroup writeback support for filesystems and
thus need to be exported. Export them.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Jens Axboe <axboe@fb.com>
The fixes include:
* A couple of fixes for the new ARM-SMMUv3 driver to fix issues found
on the first real implementation of that hardware.
* A patch for the Intel VT-d driver to fix a domain-id leak.
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Merge tag 'iommu-fixes-v4.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull iommu fixes from Joerg Roedel:
"The fixes include:
- a couple of fixes for the new ARM-SMMUv3 driver to fix issues found
on the first real implementation of that hardware.
- a patch for the Intel VT-d driver to fix a domain-id leak"
* tag 'iommu-fixes-v4.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu/vt-d: Fix VM domain ID leak
iommu/arm-smmu: Skip the execution of CMD_PREFETCH_CONFIG
iommu/arm-smmu: Enlarge STRTAB_L1_SZ_SHIFT to support larger sidsize
iommu/arm-smmu: Fix the values of ARM64_TCR_{I,O}RGN0_SHIFT
iommu/arm-smmu: Fix LOG2SIZE setting for 2-level stream tables
iommu/arm-smmu: Fix the index calculation of strtab
VCE, UVD DPM work similarly to SCLK DPM. Report the current
clock levels for UVD and VCE via debugfs.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
CZ uses a different set of registers compared to previous asics
and supports separate NB and GFX planes.
Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
We were previously using free_bootmem() and just getting lucky
that nothing too bad happened.
Signed-off-by: Chris Metcalf <cmetcalf@ezchip.com>
Cc: stable@vger.kernel.org
The handling of in detach_mounts of unmounted but connected mounts is
buggy and can lead to an infinite loop.
Correct the handling of unmounted mounts in detach_mount. When the
mountpoint of an unmounted but connected mount is connected to a
dentry, and that dentry is deleted we need to disconnect that mount
from the parent mount and the deleted dentry.
Nothing changes for the unmounted and connected children. They can be
safely ignored.
Cc: stable@vger.kernel.org
Fixes: ce07d891a0 mnt: Honor MNT_LOCKED when detaching mounts
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
For boards with bad VCE blocks, only configure the working
block.
v2: use the harvest info for pipe setup
v3: fix mask check as noted by Leo
v4: add dGPU support
Reviewed-by: Christian König <christian.koenig@amd.com> (v2)
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This doesn't seem strictly necessary with Tonga right now, but that might
change with future power management enhancements.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Something (ATOM BIOS?) seems to be clobbering the LB_INTERRUPT_MASK
register while the CRTC is off, which caused e.g. glxgears or
gnome-shell to hang after a modeset.
Reviewed-and-Tested-by: Alex Deucher <alexander.deucher@amd.com>
Tested-by: Sonny Jiang <sonny.jiang@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
This continues the attempt to fix commit fb170fb4c5 ("iommu/vt-d:
Introduce helper functions to make code symmetric for readability").
The previous attempt in commit 7168440690 ("iommu/vt-d: Detach
domain *only* from attached iommus") overlooked the fact that
dmar_domain.iommu_bmp gets cleared for VM domains when devices are
detached:
intel_iommu_detach_device
domain_remove_one_dev_info
domain_detach_iommu
The domain is detached from the iommu, but the iommu is still attached
to the domain, for whatever reason. Thus when we get to domain_exit(),
we can't rely on iommu_bmp for VM domains to find the active iommus,
we must check them all. Without that, the corresponding bit in
intel_iommu.domain_ids doesn't get cleared and repeated VM domain
creation and destruction will run out of domain IDs. Meanwhile we
still can't call iommu_detach_domain() on arbitrary non-VM domains or
we risk clearing in-use domain IDs, as 7168440690 attempted to
address.
It's tempting to modify iommu_detach_domain() to test the domain
iommu_bmp, but the call ordering from domain_remove_one_dev_info()
prevents it being able to work as fb170fb4c5 seems to have intended.
Caching of unused VM domains on the iommu object seems to be the root
of the problem, but this code is far too fragile for that kind of
rework to be proposed for stable, so we simply revert this chunk to
its state prior to fb170fb4c5.
Fixes: fb170fb4c5 ("iommu/vt-d: Introduce helper functions to make
code symmetric for readability")
Fixes: 7168440690 ("iommu/vt-d: Detach domain *only* from attached
iommus")
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: stable@vger.kernel.org # v3.17+
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Make them clearly architecture-dependent; the capability is valid for
all architectures, but the argument is not.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
OVMF depends on WB to boot fast, because it only clears caches after
it has set up MTRRs---which is too late.
Let's do writeback if CR0.CD is set to make it happy, similar to what
SVM is already doing.
Signed-off-by: Xiao Guangrong <guangrong.xiao@intel.com>
Tested-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The logic of the disabled_quirks field usually results in a double
negation. Wrap it in a simple function that checks the bit and
negates it.
Based on a patch from Xiao Guangrong.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
kvm_mtrr_get_guest_memory_type never returns -1 which is implied
in the current code since if @type = -1 (means no MTRR contains the
range), iter.partial_map must be true
Simplify the code to indicate this fact
Signed-off-by: Xiao Guangrong <guangrong.xiao@intel.com>
Tested-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Currently code uses default memory type if MTRR is fully disabled,
fix it by using UC instead.
Signed-off-by: Xiao Guangrong <guangrong.xiao@intel.com>
Tested-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
chrdev_open() increases reference counter on cdev->owner. Instead of
assigning the owner to mei subsystem, the owner has to be set to the
underlaying HW module (mei_me or mei_txe), so once the device is opened
the HW module cannot be unloaded.
Cc: <stable@vger.kernel.org> #3.17+
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename init_hal_dm to rtl92e_dm_init.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename init_firmware to rtl92e_init_fw.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename rtllib_ips_leave_wq to rtl92e_rtllib_ips_leave_wq.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename rtllib_ips_leave to rtl92e_rtllib_ips_leave.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename rtl8192_hw_wakeup_wq to rtl92e_hw_wakeup_wq.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename rtl8192_hw_wakeup to rtl92e_hw_wakeup.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename rtl8192_hw_to_sleep to rtl92e_enter_sleep.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename rtl8192_hw_sleep_wq to rtl92e_hw_sleep_wq.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename LeisurePSLeave to rtl92e_leisure_ps_leave.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename LeisurePSEnter to rtl92e_leisure_ps_enter.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename IPSLeave_wq to rtl92e_ips_leave_wq.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename IPSLeave to rtl92e_ips_leave.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename IPSEnter to rtl92e_ips_enter.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename rtl8192E_suspend to rtl92e_suspend.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename rtl8192E_resume to rtl92e_resume.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename rtl8192_pci_findadapter to rtl92e_check_adapter.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename eprom_read to rtl92e_eeprom_read.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename init_rate_adaptive to rtl92e_init_adaptive_rate.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename hal_dm_watchdog to rtl92e_dm_watchdog.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename dm_txpower_trackingcallback to rtl92e_dm_txpower_tracking_wq.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename dm_rf_pathcheck_workitemcallback to rtl92e_dm_rf_pathcheck_wq.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename dm_restore_dynamic_mechanism_state to rtl92e_dm_restore_state.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename dm_initialize_txpower_tracking to rtl92e_dm_init_txpower_tracking.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename dm_init_edca_turbo to rtl92e_dm_init_edca_turbo.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename dm_cck_txpower_adjust to rtl92e_dm_cck_txpower_adjust.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename dm_backup_dynamic_mechanism_state to rtl92e_dm_backup_state.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename deinit_hal_dm to rtl92e_dm_deinit.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename write_nic_word to rtl92e_writew.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename write_nic_dword to rtl92e_writel.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
