- 27 May, 2014 9 commits
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Tomas Winkler authored
It my take time till ME_RDY will be cleared after the reset, so we cannot check the bit before we got the interrupt Cc: stable@vger.kernel.org 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>
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Tomas Winkler authored
We cleared H_RST for H_CSR on spurious interrupt generated when ME_RDY while cleared and not while ME_RDY is set. The spurious interrupt is not delivered on all platforms in this case the driver may fail to initialize. Cc: stable@vger.kernel.org Signed-off-by:
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Tomas Winkler authored
we never freed the mei_clients array on driver shutdown only on reset add mei_hbm_reset function that wraps the hbm cleanup Signed-off-by:
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Bin Wang authored
the vma range size is always page size aligned in mmap, while the real io space range may not be page aligned, thus leading to range check failure in the uio_mmap_physical(). for example, in a case of io range size "mem->size == 1KB", and we have (vma->vm_end - vma->vm_start) == 4KB, due to "len" is aligned to page size in do_mmap_pgoff(). now fix this issue by align mem->size to page size in the check. Signed-off-by:
Bin Wang <binw@marvell.com> Signed-off-by:
Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Cc: stable <stable@vger.kernel.org> Signed-off-by:
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Daeseok Youn authored
When platform_get_irq() is failed after "priv" allocated, it need to free "priv". But the label of bad0 doesn't try to free about "priv". So this patch changes that lable to "bad1". But "bad1" has pm_runtime_disable() call, this function should be called when uio_register_device() is failed. So it is moved into handling error for uio_register_device(). Signed-off-by:
Daeseok Youn <daeseok.youn@gmail.com> Signed-off-by:
Hans J. Koch <hjk@hansjkoch.de> Signed-off-by:
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Alexey Khoroshilov authored
w1_process_callbacks() expects to be called with dev->list_mutex held, but it is the fact only in w1_process(). __w1_remove_master_device() calls w1_process_callbacks() after it releases list_mutex. The patch fixes __w1_remove_master_device() to acquire list_mutex for w1_process_callbacks(). Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by:
Alexey Khoroshilov <khoroshilov@ispras.ru> Acked-by:
David Fries <david@fries.net> Acked-by:
Evgeniy Polyakov <zbr@ioremap.net> Cc: stable <stable@vger.kernel.org> # 3.15 Signed-off-by:
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David Fries authored
Applications can submit a set of commands in one packet to the kernel, and in some cases it is required such as reading the temperature sensor results. This adds an option W1_CN_BUNDLE to the flags of cn_msg to request the kernel to reply in one packet for efficiency. The cn_msg flags now check for unknown flag values and return an error if one is seen. See "Proper handling of unknown flags in system calls" http://lwn.net/Articles/588444/ This corrects the ack values returned as per the protocol standard, namely the original ack for status messages and seq + 1 for all others such as the data returned from a read. Some of the common variable names have been standardized as follows. struct cn_msg *cn struct w1_netlink_msg *msg struct w1_netlink_cmd *cmd struct w1_master *dev When an argument and a function scope variable would collide, add req_ to the argument. Signed-off-by:
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David Fries authored
This increases the amount of bundling to reduce the number of packets sent. For the one wire use there can be multiple struct w1_netlink_cmd in a struct w1_netlink_msg and multiple of those in struct cn_msg, and with this change multiple of those in a struct nlmsghdr, and at each level the len identifies there being multiple of the next. Signed-off-by:
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Jean Delvare authored
The pch_phub driver is for a companion chip to the Intel Atom E600 series processors. These are 32-bit x86 processors so the driver is only needed on X86_32. Add COMPILE_TEST as an alternative, so that the driver can still be build-tested elsewhere. Signed-off-by:
Jean Delvare <jdelvare@suse.de> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by:
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- 20 May, 2014 1 commit
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Greg Kroah-Hartman authored
Merge tag 'extcon-next-for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon into char-misc-next Chanwoo writes: Update extcon for v3.16 This patchset add resource-managed functions to automatically control the memory and unregistration operation of extcon. Also, This series support new MAX77836 extcon device driver on existing MAX14577 device because existed a little difference between MAX77836 and MAX14577. Finally, Fix minor issue of extcon driver. Detailed description for patchset: 1. Add resource-managed functions - Add resource-managed functions to automatically free the memory of extcon structure and to control unregistration behavior as following. This new devm_* functions applied all of extcon drivers in drivers/extcon/. : devm_extcon_dev_register/unregister() : devm_extcon_dev_allocate/free() : extcon_dev_allocate/free() for devm_extcon_dev_allocate/free() 2. Add new MAX77836 extcon device - Support MAX77836 device on existing MAX14577 device driver using different compatible string. This patchset has dependency on MFD/ Regulator/Extcon. So, Lee Jones(MFD Maintainer) created Immutable branch between MFD and Extcon due for v3.16 merge-window and then I merged this patchset from MFD git repo[1] to Extcon git repo. : [1] git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd (branch: ib-mfd-extcon-3.16) 3. Fix minor issue of extcon driver - extcon-palmas driver : Fix issue of extcon device name for probe - extcon-max14577 : Fix probe failure about handling wrong return value. : Properly Handle return value of regmap_irq_get_virq function. - extcon-max8997/max77693 driver : Fix NULL pointer exception on missing pdata 4. Code clean for extcon driver - extcon-max8997/max77693 : Use power efficient workqueue for delayed cable detection
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- 03 May, 2014 25 commits
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Rob Herring authored
Add the DT match table to enable DT based probe matching. Signed-off-by:
Rob Herring <robh@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
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Rob Herring authored
Add binding doc for Versatile platforms character LCD controller interface. Signed-off-by:
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Sebastien Bourdelin authored
simple_strtoull() is obsolete, use the newer kstrtoull() instead. Signed-off-by:
Sebastien Bourdelin <sebastien.bourdelin@savoirfairelinux.com> Signed-off-by:
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Masanari Iida authored
Fix two format string mismatch in genwqe_init_debugfs() Signed-off-by:
Masanari Iida <standby24x7@gmail.com> Signed-off-by:
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Jean Delvare authored
According to the driver descriptions, the atmel_pwm and atmel-ssc drivers are only useful on Atmel AT32 and AT91 systems. So add hardware dependencies to these drivers to hide them on other systems. Signed-off-by:
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K. Y. Srinivasan authored
The current code posts periodic memory pressure status from a dedicated thread. Under some conditions, especially when we are releasing a lot of memory into the guest, we may not send timely pressure reports back to the host. Fix this issue by reporting pressure in all contexts that can be active in this driver. Signed-off-by:
K. Y. Srinivasan <kys@microsoft.com> Cc: stable@vger.kernel.org Signed-off-by:
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Tobias Klauser authored
pfncount is of type u32 and thus can never be smaller than 0. Found by the coverity scanner, CID 143213. Signed-off-by:
Tobias Klauser <tklauser@distanz.ch> Signed-off-by:
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K. Y. Srinivasan authored
Currently the mapping of the relID to channel is done under the protection of a single spin lock. Starting with ws2012, each channel is bound to a specific VCPU in the guest. Use this binding to eliminate the spin lock by setting up per-cpu state for mapping relId to the channel. Signed-off-by:
Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by:
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K. Y. Srinivasan authored
By ensuring that we set the callback handler to NULL in the channel close path on the same CPU that the channel is bound to, we can eliminate this lock acquisition and release in a performance critical path. Signed-off-by:
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Alexander Usyskin authored
Adding power gating introduced new waiting state for client also during connection attempt, a connection request can be queued for later either due device is power gated or due to other on going connection. We setting client connection state before start of full connect procedure so in both cased the client state will be MEI_FILE_CONNECTING which create interlock between the two connection attempts, both detecting that another connection is in progress. The interlock is resolved by moving client to connecting state only upon connection request transmission, so the first cb in queue can be processed. Signed-off-by:
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Alexander Usyskin authored
Follow-up for bits missed in commit 7ca96aa2 mei: make return values consistent across the driver Signed-off-by:
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Alexander Usyskin authored
Fetch FW status registers, as they are important in in understanding of FW reset reasons Signed-off-by:
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Tomas Winkler authored
Communicate hbm version 1.1 to firmware to tell that we now support power gating isolation protocol Signed-off-by:
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Alexander Usyskin authored
For non wakeable devices we can't use pci runtime framework as we are not able to wakeup from D3 states. Instead we create new pg runtime domain that only drives TXE power gating protocol to reduce the power consumption. Signed-off-by:
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Tomas Winkler authored
For non wakeable devices we can't use pci runtime framework as we are not able to wakeup from D3 states. Instead we create new pg runtime domain that only drives ME power gating protocol to reduce the power consumption. Signed-off-by:
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Tomas Winkler authored
Take rpm token on operation start to initiate rpm resume if needed. Mark last busy time, release token and advice rpm framework to try to autosuspend on operation end. Signed-off-by:
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Alexander Usyskin authored
Add runtime pm framework for TXE devices. The runtime pm handlers are used to run txe power gating isolation protocol. Signed-off-by:
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Tomas Winkler authored
Add runtime pm framework for ME devices. The runtime pm handlers are used to run me power gating isolation protocol Signed-off-by:
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Tomas Winkler authored
The driver needs to check whether the write queue idle before entering power gating Signed-off-by:
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Tomas Winkler authored
For power gating entry we write hbm pg entry request command and then we set pg register For power gating exit we clear pg register and wait for exit request hbm command. Exit power gating request might also be initiated by the firmware w/o explicit driver request The power gating state is tracked by pg_state member of me_hw Signed-off-by:
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Tomas Winkler authored
Since the runtime pm and the internal power gating cannot be in complete sync in regards to I/O operations, we need to expose the device hardware internal power gating state to mei layer 2. We add pg_state handler that translate the hw internal pg state to mei layer 2. We add power gating event variable to keep power track of power gating transitions Signed-off-by:
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Tomas Winkler authored
Enable power gating isolation only if hw and fw support it. This is indicated by ME_PGIC_HRA bit in ME_CSR_HA register and on HBM protocol version. The information is exported to MEI layer through new pg_is_enabled hw op. Signed-off-by:
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Tomas Winkler authored
Add entry and exit power gating isolation register write handler. Signed-off-by:
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Tomas Winkler authored
LPT devices have internal power gating handled through registers and hbm calls Signed-off-by:
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Tomas Winkler authored
Add send message functions and receive dispatch stubs for power gating isolation hbm protocol. The protocol consist of requests for entering and exiting the power gating isolation state and their responses. Signed-off-by:
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- 29 Apr, 2014 5 commits
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Chanwoo Choi authored
This patch use devm_extcon_dev_allocate() to simplify the memory control of extcon device. Cc: Graeme Gregory <gg@slimlogic.co.uk> Cc: Kishon Vijay Abraham I <kishon@ti.com> Cc: Felipe Balbi <balbi@ti.com> Cc: Samuel Ortiz <sameo@linux.intel.com> Cc: Lee Jones <lee.jones@linaro.org> Signed-off-by:
Chanwoo Choi <cw00.choi@samsung.com> Acked-by:
Lee Jones <lee.jones@linaro.org> Acked-by:
Felipe Balbi <balbi@ti.com> Tested-by:
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Chanwoo Choi authored
This patch use devm_extcon_dev_allocate() to simplify the memory control of extcon device. Signed-off-by:
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Chanwoo Choi authored
This patch use devm_extcon_dev_allocate() to simplify the memory control of extcon device. Signed-off-by:
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Chanwoo Choi authored
This patch use devm_extcon_dev_allocate() to simplify the memory control of extcon device. Cc: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Cc: Mark Brown <broonie@kernel.org> Cc: patches@opensource.wolfsonmicro.com Signed-off-by:
Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Reviewed-by:
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Chanwoo Choi authored
This patch use devm_extcon_dev_allocate() to simplify the memory control of extcon device. Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by:
Krzysztof Kozlowski <k.kozlowski@samsung.com> Reviewed-by:
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