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2015-04-10[media] uvcvideo: add support for VIDIOC_QUERY_EXT_CTRLHans Verkuil
Add support for the new VIDIOC_QUERY_EXT_CTRL ioctl. Since uvc doesn't use the control framework, support for this ioctl isn't automatic. This is makes v4l2-compliance happy as well. [Added blank lines for improved readability] Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-04-10Merge branch 'pci/misc' into nextBjorn Helgaas
* pci/misc: PCI: Read capability list as dwords, not bytes PCI: Don't clear ASPM bits when the FADT declares it's unsupported PCI: Clarify policy for vendor IDs in pci.txt PCI/ACPI: Optimize device state transition delays PCI: Export pci_find_host_bridge() for use inside PCI core PCI: Make a shareable UUID for PCI firmware ACPI _DSM PCI: Fix typo in Thunderbolt kernel message
2015-04-10Merge branches 'pci/host-exynos', 'pci/host-iproc', 'pci/host-keystone', ↵Bjorn Helgaas
'pci/host-layerscape', 'pci/host-mvebu', 'pci/host-rcar' and 'pci/host-versatile' into next * pci/host-exynos: PCI: exynos: Fix INTx enablement statement termination error * pci/host-iproc: PCI: iproc: Add Broadcom iProc PCIe support PCI: iproc: Add DT docs for Broadcom iProc PCIe driver PCI: Export symbols required for loadable host driver modules * pci/host-keystone: PCI: keystone: Don't dereference possible NULL pointer * pci/host-layerscape: PCI: layerscape: Simplify platform_get_resource_byname() failure checking * pci/host-mvebu: PCI: mvebu: Add suspend/resume support * pci/host-rcar: PCI: rcar: Verify that mem_res is 64K-aligned PCI: rcar: Change PCIEPARL and PCIEPARH to PCIEPALR and PCIEPAUR PCI: rcar: Write zeroes to reserved PCIEPARL bits PCI: rcar: Fix position of MSI enable bit * pci/host-versatile: PCI: versatile: Check for devm_ioremap_resource() failures
2015-04-10[media] uvcvideo: fix cropcap v4l2-compliance failureHans Verkuil
The v4l2-compliance tool expects that if VIDIOC_CROPCAP is defined, then VIDIOC_G_SELECTION for TGT_CROP_BOUNDS/DEFAULT is also defined (or COMPOSE in the case of an output device). In fact, all that a driver has to do to implement cropcap is to support those two targets since the v4l2 core will implement cropcap and fill in the pixelaspect to 1/1 by default. Implementing cropcap is only needed if the pixelaspect isn't square. So implement g_selection instead of cropcap in uvc to fix the v4l2-compliance failure. [Added blank lines for improved readability] Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-04-10[media] media: omap3isp: remove unused clkdevRussell King
No merged platform supplies xclks via platform data. As we want to slightly change the clkdev interface, rather than fixing this unused code, remove it instead. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-04-10perf probe: Check the orphaned -x optionMasami Hiramatsu
To avoid probing in unintended binary, the orphaned -x option must be checked and warned. Without this patch, following command sets up the probe in the kernel. ----- # perf probe -a strcpy -x ./perf Added new event: probe:strcpy (on strcpy) You can now use it in all perf tools, such as: perf record -e probe:strcpy -aR sleep 1 ----- But in this case, it seems that the user may want to probe in the perf binary. With this patch, perf-probe correctly handles the orphaned -x. ----- # perf probe -a strcpy -x ./perf Error: -x/-m must follow the probe definitions. ... ----- Reported-by: Jiri Olsa <jolsa@redhat.com> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20150401102541.17137.75477.stgit@localhost.localdomain Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-10perf probe: Support multiple probes on different binariesMasami Hiramatsu
Support multiple probes on different binaries with just one command. In the result, this example sets up the probes on icmp_rcv in kernel, on main and set_target in perf, and on pcspkr_event in pcspker.ko driver. ----- # perf probe -a icmp_rcv -x ./perf -a main -a set_target \ -m /lib/modules/4.0.0-rc5+/kernel/drivers/input/misc/pcspkr.ko \ -a pcspkr_event Added new event: probe:icmp_rcv (on icmp_rcv) You can now use it in all perf tools, such as: perf record -e probe:icmp_rcv -aR sleep 1 Added new event: probe_perf:main (on main in /home/mhiramat/ksrc/linux-3/tools/perf/perf) You can now use it in all perf tools, such as: perf record -e probe_perf:main -aR sleep 1 Added new event: probe_perf:set_target (on set_target in /home/mhiramat/ksrc/linux-3/tools/perf/perf) You can now use it in all perf tools, such as: perf record -e probe_perf:set_target -aR sleep 1 Added new event: probe:pcspkr_event (on pcspkr_event in pcspkr) You can now use it in all perf tools, such as: perf record -e probe:pcspkr_event -aR sleep 1 ----- Reported-by: Arnaldo Carvalho de Melo <acme@infradead.org> Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20150401102539.17137.46454.stgit@localhost.localdomain Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-10perf buildid-list: Fix segfault when show DSOs with hitsHe Kuang
commit: f3b623b8490a ("perf tools: Reference count struct thread") appends every thread->node to dead_threads in machine__remove_thread() and list_del_init() this node in thread__put(). perf_event__exit_del_thread() releases thread wihout using machine__remove_thread(), and causes a NULL pointer crash when list_del_init(&thread->node) is called. Fix this by using machine_remove_thread() instead of using thread__put() directly. This problem can be reproduced as following: $ perf record ls $ perf buildid-list --with-hits [ 3874.195070] perf[1018]: segfault at 0 ip 00000000004b0b15 sp 00007ffc35b44780 error 6 in perf[400000+166000] Segmentation fault After this patch: $ perf record ls $ perf buildid-list --with-hits bc23e7c3281e542650ba4324421d6acf78f4c23e /proc/kcore 643324cb0e969f30c56d660f167f84a150845511 [vdso] 0000000000000000000000000000000000000000 /bin/busybox ... Signed-off-by: He Kuang <hekuang@huawei.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1428658500-6483-1-git-send-email-hekuang@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-10perf tools: Fix cross-endian analysisDavid Ahern
Trying to analyze a big endian data file on little endian system fails with the error: 0xa9b40 [0x70]: failed to process type: 9 The problem is that header parsing is not done correctly because the file attributes are not swapped. Make it so. With this patch able to analyze a sparc64 data file on x86_64. Signed-off-by: David Ahern <david.ahern@oracle.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1428610546-178789-1-git-send-email-david.ahern@oracle.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-10perf tools: Fix error path to do closedir() when synthesizing threadsArnaldo Carvalho de Melo
When traversing /proc to synthesize the PERF_RECORD_FORK et al events we were bailing out on errors without calling closedir(), fix it. Reported-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-vxtp593rfztgbi8noy0m967p@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-10[media] coda: Add tracing supportPhilipp Zabel
This patch adds tracepoints to the coda driver that can be used together with the v4l2:v4l2_qbuf and v4l2:v4l2_dqbuf tracepoints to to follow video frames through the mem2mem device. For encoding with the BIT processor: coda:coda_enc_pic_run coda:coda_enc_pic_done For decoding with the BIT processor: coda:coda_bit_queue coda:coda_dec_pic_run coda:coda_dec_pic_done coda:coda_dec_rot_done Additionally, two low level tracepoints register whenever the BIT processor is started and returns: coda:coda_bit_run coda:coda_bit_done Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-04-10[media] coda: drop dma_sync_single_for_device in coda_bitstream_queuePhilipp Zabel
Issuing a cache flush for the whole bitstream buffer is not optimal in the first place when only a part of it was written. But given that the buffer is mapped in writecombine mode, it is not needed at all. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Tested-by: Ian Molton <imolton@ad-holdings.co.uk> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-04-10[media] coda: fix fill bitstream errors in nonstreaming casePhilipp Zabel
When queueing a buffer into the bitstream fails, it has to be requeued in the videobuf2 queue before streaming starts, but while streaming it should be returned to userspace with an error. Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-04-10perf tools: Fix synthesizing fork_event.ppid for non-main threadDavid Ahern
Commit ca6c41c59b9 sets the ppid based on what is read from the /proc/pid/status file when synthesizing fork events. This is correct thing to do for new processes but not threads of a process. Fix ppid for threads to be the main thread when synthesizing fork events (ie., assume main thread spawned all sub-threads in a process). Reported-by: Arnaldo Carvalho de Melo <arnaldo.melo@gmail.com> Signed-off-by: David Ahern <david.ahern@oracle.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Acked-by: Don Zickus <dzickus@redhat.com> Link: http://lkml.kernel.org/r/1428598107-178999-1-git-send-email-david.ahern@oracle.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-10[media] coda: call SEQ_END when the first queue is stoppedPhilipp Zabel
This allows to stop and restart the output queue to start a new sequence while keeping the capture queue running. Before, sequence end would only be issued if both output and capture queue were stopped and the sequence start issued when reenabling the output queue would fail. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-04-10[media] coda: fail to start streaming if userspace set invalid formatsPhilipp Zabel
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-04-10[media] coda: remove duplicate error messages for buffer allocationsPhilipp Zabel
coda_alloc_aux_buf already prints an error, no need to print duplicate error messages all over the place. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-04-10[media] coda: move parameter buffer in together with context buffer allocationPhilipp Zabel
The parameter buffer is a per-context buffer, so we can allocate and free it together with the other context buffers during REQBUFS. Since this was the last context buffer allocated in coda-common.c, we can now move coda_alloc_context_buf into coda-bit.c. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-04-10[media] coda: allocate bitstream buffer from REQBUFS, size depends on the formatPhilipp Zabel
Allocating the bitstream buffer only when the format is set allows to guarantee that at least two frames fit into the bitstream buffer. For small frame sizes a smaller bitstream buffer can be allocated. Since the bitstream buffer size now depends on the format, replace CODA_MAX_FRAME_SIZE with ctx->bitstream.size where appropriate and remove the now unused constant. Since REQBUFS can be called multiple times, but the format can't be changed unless REQBUFS 0 was called before, we can just keep the allocated context and bitstream buffers if REQBUFS is called multiple times with a non-zero buffer count. [fixed a resource leak preventing repeatedly decoding] Signed-off-by: Peter Seiderer <ps.report@gmx.net> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-04-10[media] coda: allocate per-context buffers from REQBUFSPhilipp Zabel
Allocate the per-context buffers from REQBUFS instead in start_encoding or start_decoding. This allows to stop and start streaming independently of buffer (re)allocation Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-04-10[media] coda: use strlcpy instead of snprintfPhilipp Zabel
There is no need to take the detour through a "%s" format string to create a copy of a string. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-04-10[media] coda: bitstream payload is unsignedPhilipp Zabel
kfifo_len is unsigned int, return it as such. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-04-10[media] coda: fix double call to debugfs_removePeter Seiderer
In coda_free_aux_buf() call debugfs_remove only if buffer entry is valid (and therfore dentry is valid), double protect by invalidating dentry value. Fixes erroneous prematurely dealloc of debugfs caused by incorrect reference count incrementing. Signed-off-by: Peter Seiderer <ps.report@gmx.net> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-04-10[media] coda: check kasprintf return value in coda_openPeter Seiderer
kasprintf might fail if free memory is low. Signed-off-by: Peter Seiderer <ps.report@gmx.net> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-04-10[media] coda: bitrate can only be set in kbps stepsPhilipp Zabel
We divide the bitrate by 1000 before writing it to the register. Communicate to userspace that the bitrate granularity is kbps. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-04-10[media] v4l2-mem2mem: no need to initialize b in v4l2_m2m_next_buf and ↵Philipp Zabel
v4l2_m2m_buf_remove The first time b is used, it is assigned to the first element of the rdy_queue list. There is no need to set it to NULL before. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-04-10[media] s5p-mfc: set allow_zero_bytesused flag for vb2_queue_initKamil Debski
The s5p-mfc driver interprets a buffer with bytesused equal to 0 as a special case indicating end-of-stream. After vb2: fix bytesused == 0 handling (8a75ffb) patch videobuf2 modified the value of bytesused if it was 0. The allow_zero_bytesused flag was added to videobuf2 to keep backward compatibility. Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-04-10[media] coda: set allow_zero_bytesused flag for vb2_queue_initKamil Debski
The coda driver interprets a buffer with bytesused equal to 0 as a special case indicating end-of-stream. After vb2: fix bytesused == 0 handling (8a75ffb) patch videobuf2 modified the value of bytesused if it was 0. The allow_zero_bytesused flag was added to videobuf2 to keep backward compatibility. Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-04-10[media] vb2: add allow_zero_bytesused flag to the vb2_queue structKamil Debski
The vb2: fix bytesused == 0 handling (8a75ffb) patch changed the behavior of __fill_vb2_buffer function, so that if bytesused is 0 it is set to the size of the buffer. However, bytesused set to 0 is used by older codec drivers as as indication used to mark the end of stream. To keep backward compatibility, this patch adds a flag passed to the vb2_queue_init function - allow_zero_bytesused. If the flag is set upon initialization of the queue, the videobuf2 keeps the value of bytesused intact in the OUTPUT queue and passes it to the driver. Reported-by: Nicolas Dufresne <nicolas.dufresne@collabora.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-04-10[media] vb2: split the io_flags member of vb2_queue into a bit fieldKamil Debski
This patch splits the io_flags member of vb2_queue into a bit field. Instead of an enum with flags separate bit fields were introduced. Signed-off-by: Kamil Debski <k.debski@samsung.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-04-10n_gsm: Drop unneeded cast on netdev_privJulia Lawall
The result of netdev_priv is already implicitly cast to the type of the left side of the assignment. The semantic patch that fixes this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ type T; T *x; @@ x = - (T *) netdev_priv(...) // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-10sc16is7xx: expose RTS inversion in RS-485 modeJakub Kicinski
Hardware is capable of inverting RTS signal when working in RS-485 mode. Expose this functionality to user space. Relay on a matching combination of standard flags (SER_RS485_RTS_ON_SEND and SER_RS485_RTS_AFTER_SEND) to detect when user space is requesting inverted RTS mode. Signed-off-by: Jakub Kicinski <kubakici@wp.pl> Signed-off-by: Jon Ringle <jringle@gridpoint.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-10serial: 8250_pci: port failed after wakeup from S3Peter Hung
Serial ports of F81504/F81508/F81512 will failed when wakeup from S3(STR). It's due to when the system wakeup from S3(STR), this PCI device's configuration space from 0x40 to 0x40 + max_port * 0x08 should be re-configured. We move all initialization from pci_fintek_setup() to pci_fintek_init() and set it to pci_serial_quirks .init section. It's will re-init this device when system wakeup from pciserial_resume_ports(). Signed-off-by: Peter Hung <hpeter+linux_kernel@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-10earlycon: 8250: Document kernel command line optionsPeter Hurley
Document the expected behavior of kernel command lines of the forms: console=uart[8250],io|mmio|mmio32,<addr>[,options] console=uart[8250],<addr>[,options] and earlycon=uart[8250],io|mmio|mmio32,<addr>[,options] earlycon=uart[8250],<addr>[,options] Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-10earlycon: 8250: Fix command line regressionPeter Hurley
Restore undocumented behavior of kernel command line parameters of the forms: console=uart[8250],io|mmio|mmio32,<addr>[,options] console=uart[8250],<addr>[,options] where 'options' have not been specified; in this case, the hardware is assumed to be initialized. Fixes: c7cef0a84912cab3c9df8 ("console: Add extensible console matching") Reported-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-10earlycon: Fix __earlycon_table stridePeter Hurley
The compiler and the linker must agree on the alignment of struct earlycon_id; empirical testing and commit 07fca0e57fca92 ("tracing: Properly align linker defined symbols") suggests 32-byte alignment is the LCD. Reported-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-10drivers/usb/core: devio.c: Removed an uneeded space before tabChase Metzger
Ran checkpatch.pl on file and removed a warning about an unwanted space before a tab. Signed-off-by: Chase Metzger <chasemetzger15@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-10usb: dwc2: host: sleep USB_RESUME_TIMEOUT during resumeGregory Herrero
msleep(USB_RESUME_TIMEOUT) must be done when the controller drives the resume. This is true after HPRT0_RES is written. Moreover, restore the delay after controller power is up. Signed-off-by: Gregory Herrero <gregory.herrero@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-10Merge tag 'usb-ci-v4.1-rc1' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb into usb-next Peter writes: Two Chipidea updates - Forbid dumpping registers when the controller in low power mode - dp pullup needs to be controlled by fsm when working at otg fsm mode
2015-04-10Merge tag 'for-4.1' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-next Kishon writes: New Features ============ *) Add driver for USB PHYs on sun9i *) Add driver for USB PHY on dm816x *) Modified exynos5-usbdrd driver to add support for Exynos5433 SoC Fixes ===== *) Fix power_on/power_off failure paths in some drivers *) Make miphy365x use generic PHY type constants *) Fix build errors due to missing export symbols in qcom-ufs driver *) Make all the functions return proper error values Cleanups ======== *) use PTR_ERR_OR_ZERO to simplify code *) use devm_kcalloc instead of devm_kzalloc with multiply *) remove un-necessary ifdef CONFIG_OF
2015-04-10Merge tag 'usb-for-v4.1-part2' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-testing Felipe writes: usb: generic resume timeout for v4.1 This part 2 pull request contains only the patches which make sure everybody on linux uses the same resume timeout value. Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-04-10drm/i915/chv: Remove DPIO force latency causing interpair skew issueClint Taylor
Latest version of the "CHV DPIO programming notes" no longer requires writes to TX DW 11 to fix a +2UI interpair skew issue. The current code from April 2014 was actually causing additional skew issues between all TMDS pairs. ver2: added same treatment to intel_dp.c based on Ville's testing. Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Tested-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Clint Taylor <clinton.a.taylor@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2015-04-10drm/i915: Don't cancel DRRS worker synchronously for flush/invalidateDaniel Vetter
It's not needed since the worker rechecks that it didn't race. We only need to cancel synchronously after disabling drrs to make sure the worker really is gone (e.g. for driver unload). But for normal operation the stall is just wasted time. Reported-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Ramalingam C <ramalingam.c@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Vandana Kannan <vandana.kannan@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2015-04-10drm/i915: Fix locking in DRRS flush/invalidate hooksDaniel Vetter
We must acquire the mutex before we can check drrs.dp, otherwise someone might sneak in with a modeset, clear the pointer after we've checked it and then the code will Oops. This issue has been introduced in commit a93fad0f7fb8a3ff12e8814b630648f6d187954c Author: Vandana Kannan <vandana.kannan@intel.com> Date: Sat Jan 10 02:25:59 2015 +0530 drm/i915: DRRS calls based on frontbuffer v2: Don't blow up on uninitialized mutex and work item by checking whether DRRS is support or not first. Also unconditionally initialize the mutex/work item to avoid future trouble. Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Ramalingam C <ramalingam.c@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Vandana Kannan <vandana.kannan@intel.com> Cc: stable@vger.kernel.org (4.0+ only) Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Tested-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2015-04-10ALSA: emu10k1: don't deadlock in proc-functionsMichael Gernoth
The functions snd_emu10k1_proc_spdif_read and snd_emu1010_fpga_read acquire the emu_lock before accessing the FPGA. The function used to access the FPGA (snd_emu1010_fpga_read) also tries to take the emu_lock which causes a deadlock. Remove the outer locking in the proc-functions (guarding only the already safe fpga read) to prevent this deadlock. [removed superfluous flags variables too -- tiwai] Signed-off-by: Michael Gernoth <michael@gernoth.net> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-04-10mmc: sdhci-st: Update ST SDHCI binding documentation.Peter Griffin
This patch updates the binding information to reflect the extra dt options which are now supported by the sdhci-st.c driver which enable support for stih407 family silicon. STiH410 SoC and later support UHS modes for eMMC, so the driver now makes use of these common bindings. Examples are provided for both eMMC (which has additional bindings) and also sd slot for STiH407. Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Acked-by: Maxime Coquelin <maxime.coquelin@st.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-04-10mmc: sdhci-st: Update the quirks for this controller.Peter Griffin
Some additional quirks need to be enabled now we support UHS modes. This avoids some spurious warnings like "Got data interrupt 0x00000002 even though no data operation was in progress" Testing on stih410-b2120 board achieves the following speeds with HS200 eMMC card. max-frequency = 200Mhz /dev/mmcblk0p1: Timing buffered disk reads: 270 MB in 3.02 seconds = 89.54 MB/sec max-frequency = 100Mhz root@debian-armhf:~# hdparm -t /dev/mmcblk0p1 /dev/mmcblk0p1: Timing buffered disk reads: 210 MB in 3.00 seconds = 70.00 MB/sec max-frequency = 50Mhz root@debian-armhf:~# hdparm -t /dev/mmcblk0p1 /dev/mmcblk0p1: Timing buffered disk reads: 118 MB in 3.00 seconds = 39.28 MB/sec This is better than the 3.10 kernel which achieves 77.59 MB/sec at 200Mhz clock (same board/soc/eMMC). Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Acked-by: Maxime Coquelin <maxime.coquelin@st.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-04-10mmc: sdhci-st: Add sdhci_st_set_uhs_signaling function.Peter Griffin
To allow UHS modes to work properly we need to provide the st specific set_uhs_signaling callback function. This function differs from the generic sdhci_set_uhs_signaling callback in that we need to configure the correct delay depending on the UHS mode, and also set the V18_EN bit. Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Acked-by: Maxime Coquelin <maxime.coquelin@st.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-04-10mmc: sdhci-st: Add st_mmcss_cconfig function to configure mmcss glue registers.Peter Griffin
STiH407 family SoC's have glue registers in the flashSS subsystem which are used to configure the Arasan HC. This patch configures these glue registers according to what has been specified in the DT. Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Acked-by: Maxime Coquelin <maxime.coquelin@st.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-04-10mmc: sdhci-st: Add delay management functions for top registers (eMMC).Peter Griffin
Due to the tight timing constraints in some UHS modes, it is required to have some delay management in the design. Two types of delay management are supported in the HW: - 1) Static delay management 2) Dynamic delay management NB: The delay management is only there when eMMC interface is selected. 1: Static delay management: is used to provide PVT dependent static delay on the clock/data lines to manage setup/hold requirements of the interface. The maximum delay possible is 3.25ns. These delays are PVT dependent, and thus delay values applied are not accurate and vary across provcess voltage and temperature range. Due to this these delays must not be used on the very time critical paths. 2. Dynamic delay locked loop (DLL): is used to provide dynamic delay management. The advantage of DLL is that it provides accurate & PVT indepedent delay. The DLL is used to provide delay on the loopback clock on "Read Path" to capture read data reliably. On TX path the clock on which output data is transmitted is delayed, resulting in delay of TX data. Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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