Commit graph

413812 commits

Author SHA1 Message Date
Jeff Moyer
959a35f13e blk-mq: fix dereference of rq->mq_ctx if allocation fails
If __GFP_WAIT isn't set and we fail allocating, when we go
to drop the reference on the ctx, we will attempt to dereference
the NULL rq. Fix that.

Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2013-12-03 14:24:28 -07:00
Konrad Rzeszutek Wilk
813e8e3d6a cpuidle: Check for dev before deregistering it.
If not, we could end up in the unfortunate situation where
we dereference a NULL pointer b/c we have cpuidle disabled.

This is the case when booting under Xen (which uses the
ACPI P/C states but disables the CPU idle driver) - and can
be easily reproduced when booting with cpuidle.off=1.

BUG: unable to handle kernel NULL pointer dereference at           (null)
IP: [<ffffffff8156db4a>] cpuidle_unregister_device+0x2a/0x90
.. snip..
Call Trace:
 [<ffffffff813b15b4>] acpi_processor_power_exit+0x3c/0x5c
 [<ffffffff813af0a9>] acpi_processor_stop+0x61/0xb6
 [<ffffffff814215bf>] __device_release_driver+0fffff81421653>] device_release_driver+0x23/0x30
 [<ffffffff81420ed8>] bus_remove_device+0x108/0x180
 [<ffffffff8141d9d9>] device_del+0x129/0x1c0
 [<ffffffff813cb4b0>] ? unregister_xenbus_watch+0x1f0/0x1f0
 [<ffffffff8141da8e>] device_unregister+0x1e/0x60
 [<ffffffff814243e9>] unregister_cpu+0x39/0x60
 [<ffffffff81019e03>] arch_unregister_cpu+0x23/0x30
 [<ffffffff813c3c51>] handle_vcpu_hotplug_event+0xc1/0xe0
 [<ffffffff813cb4f5>] xenwatch_thread+0x45/0x120
 [<ffffffff810af010>] ? abort_exclusive_wait+0xb0/0xb0
 [<ffffffff8108ec42>] kthread+0xd2/0xf0
 [<ffffffff8108eb70>] ? kthread_create_on_node+0x180/0x180
 [<ffffffff816ce17c>] ret_from_fork+0x7c/0xb0
 [<ffffffff8108eb70>] ? kthread_create_on_node+0x180/0x180

This problem also appears in 3.12 and could be a candidate for backport.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: All applicable <stable@vger.kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-12-03 22:05:22 +01:00
Olof Johansson
f39918eec7 ARM: multi_v7_defconfig: enable SDHCI_BCM_KONA and MMC_BLOCK_MINORS=16
Enable MMC/SD on the Broadcom mobile platforms, and increase the block
minors from the default 8 to 16 (since the Broadcom board by default
has root on the 8th partition).

Signed-off-by: Olof Johansson <olof@lixom.net>
Cc: stable@vger.kernel.org # v3.12
2013-12-03 12:39:14 -08:00
Olof Johansson
610ffd58db ARM: sunxi_defconfig: enable NFS, TMPFS, PRINTK_TIME and nfsroot support
This enables a few more options on the sunxi defconfigs such that I can
use nfsroot to boot them (there is no local storage support yet). It
also enables PRINTK_TIME and tmpfs since it's a common distro requirement.

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-12-03 12:39:13 -08:00
Olof Johansson
82cca5dace Merge tag 'omap-for-v3.13/more-dt-regressions' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
From Tony Lindgren:

Few more legacy booting vs device tree booting fixes that people
have noticed while booting things with device tree for things like
omap4 WLAN, smsc911x, and beagle audio. Hopefully this will be it
for the legacy booting vs device tree fixes for this -rc cycle.

* tag 'omap-for-v3.13/more-dt-regressions' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: Fix the name of supplies for smsc911x shared by OMAP
  ARM: OMAP2+: Powerdomain: Fix unchecked dereference of arch_pwrdm
  ARM: dts: omap3-beagle: Add omap-twl4030 audio support
  ARM: dts: omap4-sdp: Fix pin muxing for wl12xx
  ARM: dts: omap4-panda-common: Fix pin muxing for wl12xx
2013-12-03 12:39:12 -08:00
Olof Johansson
0dfee674b3 ARM: multi_v7_defconfig: enable network for BeagleBone Black
BeagleBone Black uses the TI CPSW ethernet controller, enable it in the
multi_v7_defconfig for testing coverage purposes.

Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Tony Lindgren <tony@atomide.com>
Cc: stable@vger.kernel.org # v3.12
2013-12-03 12:39:11 -08:00
Olof Johansson
3060817fe8 Merge tag 'at91-fixes' of git://github.com/at91linux/linux-at91 into fixes
From Nicolas Ferre:
AT91: second round of fixes for 3.13
- reduce IP frequency for I2C on sama5d3
- missing aliases directive for USART3 on 9x5 family
- a PM symbol is missing if !CONFIG_PM

* tag 'at91-fixes' of git://github.com/at91linux/linux-at91:
  ARM: at91: fixed unresolved symbol "at91_pm_set_standby" when built without CONFIG_PM
  ARM: at91: add usart3 alias to dtsi
  ARM: at91: sama5d3: reduce TWI internal clock frequency
2013-12-03 12:39:10 -08:00
Olof Johansson
c0c3350c3c Merge tag 'mvebu-dt-fixes-3.13' of git://git.infradead.org/linux-mvebu into fixes
From Jason Cooper, mvebu DT fixes for v3.13:
 - mvebu
    - PCIe fixes now that we have test devices with more ports.
    - fix access to coherency registers

* tag 'mvebu-dt-fixes-3.13' of git://git.infradead.org/linux-mvebu:
  ARM: mvebu: re-enable PCIe on Armada 370 DB
  ARM: mvebu: use the virtual CPU registers to access coherency registers
  ARM: mvebu: fix second and third PCIe unit of Armada XP mv78260
  ARM: mvebu: second PCIe unit of Armada XP mv78230 is only x1 capable
2013-12-03 12:39:09 -08:00
Olof Johansson
b8be3a2279 Merge tag 'omap-for-v3.13/fixes-against-rc1-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
From Tony Lindgren:

Some omap related fixes that have come up with people moving to device
tree only based booting for omap2+.

The series contains a handful of fixes for the igep boards as they were
one of the first omap3 boards to jump over completely to device tree
based booting. So these can be considered regressions compared to
booting igep in legacy mode with board files in v3.12.

Also included are few other device tree vs legacy booting regressions:

- yet more missing omap3 .dtsi entries that have showed up booting
  various boards with device tree only

- n900 eMMC device tree fix

- fixes for beagle USB EHCI

- two fixes to make omap2420 MMC work

As we're moving omap2+ to be device tree only for v3.14, I'd like to
have v3.13 work equally well for legacy based booting and device tree
based booting. So there will be likely few more device tree related
booting patches trickling in.

This series also includes a regression fix for the omap timer posted
mode that may wrongly stay on from the bootloader for some SoCs.

* tag 'omap-for-v3.13/fixes-against-rc1-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  mmc: omap: Fix I2C dependency and make driver usable with device tree
  mmc: omap: Fix DMA configuration to not rely on device id
  ARM: dts: omap3-beagle: Fix USB host on beagle boards (for 3.13)
  ARM: dts: omap3-igep0020: name twl4030 VPLL2 regulator as vdds_dsi
  ARM: dts: AM33XX IGEP0033: add USB support
  ARM: dts: AM33XX BASE0033: add 32KBit EEPROM support
  ARM: dts: AM33XX BASE0033: add pinmux and user led support
  ARM: dts: AM33XX BASE0033: add pinmux and hdmi node to enable display
  ARM: dts: omap3-igep0020: Add pinmuxing for DVI output
  ARM: dts: omap3-igep0020: Add pinmux setup for i2c devices
  ARM: dts: omap3-igep: Update to use the TI AM/DM37x processor
  ARM: dts: omap3-igep: Add support for LBEE1USJYC WiFi connected to SDIO
  ARM: dts: omap3-igep: Fix bus-width for mmc1
  ARM: OMAP2+: dss-common: change IGEP's DVI DDC i2c bus
  ARM: OMAP2+: Disable POSTED mode for errata i103 and i767
  ARM: OMAP2+: Fix eMMC on n900 with device tree
  ARM: OMAP2+: Add fixed regulator to omap2plus_defconfig
  ARM: OMAP2+: Fix more missing data for omap3.dtsi file

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-12-03 12:39:08 -08:00
Mark Brown
29e248829d Merge remote-tracking branches 'asoc/fix/arizona', 'asoc/fix/atmel', 'asoc/fix/fsl', 'asoc/fix/kirkwood', 'asoc/fix/omap', 'asoc/fix/rcar', 'asoc/fix/wm8731' and 'asoc/fix/wm8990' into asoc-linus 2013-12-03 18:09:00 +00:00
Mark Brown
d930f0082d Merge remote-tracking branch 'asoc/fix/dapm' into asoc-linus 2013-12-03 18:08:59 +00:00
Mark Brown
1c4b578aa4 Merge remote-tracking branch 'asoc/fix/core' into asoc-linus 2013-12-03 18:08:59 +00:00
Greg Kroah-Hartman
eee52f9edd USB: switch maintainership of chipidea to Peter
Alexander isn't able to maintain the Chipidea code anymore, and as Peter
has been acting as the de-facto maintainer anyway, make it official.

Acked-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Acked-by: Peter Chen <Peter.Chen@freescale.com>
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-03 09:51:20 -08:00
Ivaylo Dimitrov
559c71fe5d Staging: TIDSPBRIDGE: Use vm_iomap_memory for mmap-ing instead of remap_pfn_range
This fixes the following bug:

----  Bug Report ----

source file: drivers/staging/tidspbridge/rmgr/drv_interface.c
issue      : mapping of physical memory without address range checks

259 static int bridge_mmap(struct file *filp, struct vm_area_struct *vma)
260 {
261         u32 status;
262
263         /* VM_IO | VM_DONTEXPAND | VM_DONTDUMP are set by remap_pfn_range() */
264         vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
265
266         dev_dbg(bridge, "%s: vm filp %p start %lx end %lx page_prot %ulx "
267                 "flags %lx\n", __func__, filp,
268                 vma->vm_start, vma->vm_end, vma->vm_page_prot,
269                 vma->vm_flags);
270
271         status = remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff,
272                                  vma->vm_end - vma->vm_start,
273                                  vma->vm_page_prot);
274         if (status != 0)
275                 status = -EAGAIN;
276
277         return status;
278 }

The function provides an interface to remap physical memory to user space, but
does not provide any checks to ensure that the memory is within the region that
should be accessible.

Reported-by: Nico Golde <nico@ngolde.de>
Reported-by: Fabian Yamaguchi <fabs@goesec.de>
Signed-off-by: Ivaylo Dimitrov <freemangordon@abv.bg>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-03 09:42:45 -08:00
Wei Yang
1b85ee09aa net/mlx4_core: destroy workqueue when driver fails to register
When driver registration fails, we need to clean up the resources allocated
before. mlx4_core missed destroying the workqueue allocated.

This patch destroys the workqueue when registration fails.

Signed-off-by: Wei Yang <weiyang@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-03 11:55:44 -05:00
Venkat Venkatsubra
18fc25c94e rds: prevent BUG_ON triggered on congestion update to loopback
After congestion update on a local connection, when rds_ib_xmit returns
less bytes than that are there in the message, rds_send_xmit calls
back rds_ib_xmit with an offset that causes BUG_ON(off & RDS_FRAG_SIZE)
to trigger.

For a 4Kb PAGE_SIZE rds_ib_xmit returns min(8240,4096)=4096 when actually
the message contains 8240 bytes. rds_send_xmit thinks there is more to send
and calls rds_ib_xmit again with a data offset "off" of 4096-48(rds header)
=4048 bytes thus hitting the BUG_ON(off & RDS_FRAG_SIZE) [RDS_FRAG_SIZE=4k].

The commit 6094628bfd
"rds: prevent BUG_ON triggering on congestion map updates" introduced
this regression. That change was addressing the triggering of a different
BUG_ON in rds_send_xmit() on PowerPC architecture with 64Kbytes PAGE_SIZE:
 	BUG_ON(ret != 0 &&
    		 conn->c_xmit_sg == rm->data.op_nents);
This was the sequence it was going through:
(rds_ib_xmit)
/* Do not send cong updates to IB loopback */
if (conn->c_loopback
   && rm->m_inc.i_hdr.h_flags & RDS_FLAG_CONG_BITMAP) {
  	rds_cong_map_updated(conn->c_fcong, ~(u64) 0);
    	return sizeof(struct rds_header) + RDS_CONG_MAP_BYTES;
}
rds_ib_xmit returns 8240
rds_send_xmit:
  c_xmit_data_off = 0 + 8240 - 48 (rds header accounted only the first time)
   		 = 8192
  c_xmit_data_off < 65536 (sg->length), so calls rds_ib_xmit again
rds_ib_xmit returns 8240
rds_send_xmit:
  c_xmit_data_off = 8192 + 8240 = 16432, calls rds_ib_xmit again
  and so on (c_xmit_data_off 24672,32912,41152,49392,57632)
rds_ib_xmit returns 8240
On this iteration this sequence causes the BUG_ON in rds_send_xmit:
    while (ret) {
    	tmp = min_t(int, ret, sg->length - conn->c_xmit_data_off);
    	[tmp = 65536 - 57632 = 7904]
    	conn->c_xmit_data_off += tmp;
    	[c_xmit_data_off = 57632 + 7904 = 65536]
    	ret -= tmp;
    	[ret = 8240 - 7904 = 336]
    	if (conn->c_xmit_data_off == sg->length) {
    		conn->c_xmit_data_off = 0;
    		sg++;
    		conn->c_xmit_sg++;
    		BUG_ON(ret != 0 &&
    			conn->c_xmit_sg == rm->data.op_nents);
    		[c_xmit_sg = 1, rm->data.op_nents = 1]

What the current fix does:
Since the congestion update over loopback is not actually transmitted
as a message, all that rds_ib_xmit needs to do is let the caller think
the full message has been transmitted and not return partial bytes.
It will return 8240 (RDS_CONG_MAP_BYTES+48) when PAGE_SIZE is 4Kb.
And 64Kb+48 when page size is 64Kb.

Reported-by: Josh Hunt <joshhunt00@gmail.com>
Tested-by: Honggang Li <honli@redhat.com>
Acked-by: Bang Nguyen <bang.nguyen@oracle.com>
Signed-off-by: Venkat Venkatsubra <venkat.x.venkatsubra@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-03 11:54:18 -05:00
Paul Durrant
67fa36609f xen-netback: clear vif->task on disconnect
xenvif_start_xmit() relies on checking vif->task for NULL to determine
whether the vif is ready to accept packets. The task thread is stopped in
xenvif_disconnect() but task is not set to NULL. Thus, on a re-connect the
check will give a false positive.

Also since commit ea732dff5c (Handle backend
state transitions in a more robust way) it should not be possible for
xenvif_connect() to be called if the vif is already connected so change the
check of vif->tx_irq to a BUG_ON() and also add a BUG_ON(vif->task).

Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Cc: Wei Liu <wei.liu2@citrix.com>
Cc: Ian Campbell <ian.campbell@citrix.com>
Cc: David Vrabel <david.vrabel@citrix.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-03 11:49:30 -05:00
Alan
6bbdc3984e vio: remove dangly makefile bits
The drivers are long gone but some config escaped the prune

Signed-off-by: Alan Cox <gnomes@lxorguk.ukuu.org.uk>
Resolves-bug: https://bugzilla.kernel.org/show_bug.cgi?id=57221
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-12-03 17:35:23 +01:00
Bo Shen
b4af6ef99a ASoC: wm8731: fix dsp mode configuration
According to WM8731 "PD, Rev 4.9 October 2012" datasheet, when it
works in DSP mode A, LRP = 1, while works in DSP mode B, LRP = 0.
So, fix LRP for DSP mode as the datesheet specification.

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: stable@vger.kernel.org
2013-12-03 16:04:31 +00:00
Vijaya Mohan Guvva
22a08538dc [SCSI] bfa: Fix crash when symb name set for offline vport
This patch fixes a crash when tried setting symbolic name for an offline
vport through sysfs. Crash is due to uninitialized pointer lport->ns,
which gets initialized only on linkup (port online).

Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Cc: stable@vger.kernel.org
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-12-03 06:56:49 -08:00
Amit Pundir
95f19f658c epoll: drop EPOLLWAKEUP if PM_SLEEP is disabled
Drop EPOLLWAKEUP from epoll events mask if CONFIG_PM_SLEEP is disabled.

Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-12-03 15:35:52 +01:00
Bjørn Mork
2167e2399d cpufreq: fix garbage kobjects on errors during suspend/resume
This is effectively a revert of commit 5302c3fb2e ("cpufreq: Perform
light-weight init/teardown during suspend/resume"), which enabled
suspend/resume optimizations leaving the sysfs files in place.

Errors during suspend/resume are not handled properly, leaving
dead sysfs attributes in case of failures.  There are are number of
functions with special code for the "frozen" case, and all these
need to also have special error handling.

The problem is easy to demonstrate by making cpufreq_driver->init()
or cpufreq_driver->get() fail during resume.

The code is too complex for a simple fix, with split code paths
in multiple blocks within a number of functions.  It is therefore
best to revert the patch enabling this code until the error handling
is in place.

Examples of problems resulting from resume errors:

WARNING: CPU: 0 PID: 6055 at fs/sysfs/file.c:343 sysfs_open_file+0x77/0x212()
missing sysfs attribute operations for kobject: (null)
Modules linked in: [stripped as irrelevant]
CPU: 0 PID: 6055 Comm: grep Tainted: G      D      3.13.0-rc2 #153
Hardware name: LENOVO 2776LEG/2776LEG, BIOS 6EET55WW (3.15 ) 12/19/2011
 0000000000000009 ffff8802327ebb78 ffffffff81380b0e 0000000000000006
 ffff8802327ebbc8 ffff8802327ebbb8 ffffffff81038635 0000000000000000
 ffffffff811823c7 ffff88021a19e688 ffff88021a19e688 ffff8802302f9310
Call Trace:
 [<ffffffff81380b0e>] dump_stack+0x55/0x76
 [<ffffffff81038635>] warn_slowpath_common+0x7c/0x96
 [<ffffffff811823c7>] ? sysfs_open_file+0x77/0x212
 [<ffffffff810386e3>] warn_slowpath_fmt+0x41/0x43
 [<ffffffff81182dec>] ? sysfs_get_active+0x6b/0x82
 [<ffffffff81182382>] ? sysfs_open_file+0x32/0x212
 [<ffffffff811823c7>] sysfs_open_file+0x77/0x212
 [<ffffffff81182350>] ? sysfs_schedule_callback+0x1ac/0x1ac
 [<ffffffff81122562>] do_dentry_open+0x17c/0x257
 [<ffffffff8112267e>] finish_open+0x41/0x4f
 [<ffffffff81130225>] do_last+0x80c/0x9ba
 [<ffffffff8112dbbd>] ? inode_permission+0x40/0x42
 [<ffffffff81130606>] path_openat+0x233/0x4a1
 [<ffffffff81130b7e>] do_filp_open+0x35/0x85
 [<ffffffff8113b787>] ? __alloc_fd+0x172/0x184
 [<ffffffff811232ea>] do_sys_open+0x6b/0xfa
 [<ffffffff811233a7>] SyS_openat+0xf/0x11
 [<ffffffff8138c812>] system_call_fastpath+0x16/0x1b

The failure to restore cpufreq devices on cancelled hibernation is
not a new bug. It is caused by the ACPI _PPC call failing unless the
hibernate is completed. This makes the acpi_cpufreq driver fail its
init.

Previously, the cpufreq device could be restored by offlining the
cpu temporarily.  And as a complete hibernation cycle would do this,
it would be automatically restored most of the time.  But after
commit 5302c3fb2e the leftover sysfs attributes will block any
device add action.  Therefore offlining and onlining CPU 1 will no
longer restore the cpufreq object, and a complete suspend/resume
cycle will replace it with garbage.

Fixes: 5302c3fb2e ("cpufreq: Perform light-weight init/teardown during suspend/resume")
Cc: 3.12+ <stable@vger.kernel.org> # 3.12+
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-12-03 15:25:52 +01:00
Dan Carpenter
bdefc8cbdf drm/nv50/disp: min/max are reversed in nv50_crtc_gamma_set()
We should be taking the minimum here instead of the max.  It could lead
to a buffer overflow.

Fixes: 438d99e3b1 ('drm/nvd0/disp: initial crtc object implementation')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

a/drm/nv50_display.c b/drm/nv50_display.c
index f8e66c08b11a..4e384a2f99c3 100644
2013-12-03 23:28:58 +10:00
Ben Skeggs
13cd1a5511 drm/nouveau/sw: fix oops if gpu has its display block disabled
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-12-03 23:28:57 +10:00
Ben Skeggs
2fd04c81dc drm/nouveau: unreference fence after syncing
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-12-03 23:28:57 +10:00
Maarten Lankhorst
f074d73386 drm/nouveau/kms: send timestamp data for correct head in flip completion events
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-12-03 23:28:56 +10:00
Roy Spliet
a7e4201f0f drm/nouveau/clk: Add support for NVAA/NVAC
Signed-off-by: Roy Spliet <rspliet@eclipso.eu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-12-03 23:28:56 +10:00
Roy Spliet
b1cd49763b drm/nouveau/fifo: Hook up pause and resume for NV50 and NV84+
Signed-off-by: Roy Spliet <rspliet@eclipso.eu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-12-03 23:28:55 +10:00
Ilia Mirkin
efffa9841c drm/nv10/plane: some chipsets don't support NV12
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-12-03 23:28:54 +10:00
Ilia Mirkin
050828e956 drm/nv10/plane: add downscaling restrictions
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-12-03 23:28:54 +10:00
Ilia Mirkin
92e5b0a2b1 drm/nv10/plane: fix format computation
Otherwise none of the format checks pass, since the width was still in
16.16 encoding.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-12-03 23:28:53 +10:00
Ben Skeggs
5b19f4f9bd drm/nv04-nv30/clk: provide an empty domain list
Reported-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2013-12-03 23:28:44 +10:00
Heikki Krogerus
351cfe0fe8 gpiolib: change a warning to debug message when failing to get gpio
It's the drivers responsibility to react on failure to get
the gpio descriptors and not the frameworks. Since there are
some common peripherals that may or may not have certain
pins connected to gpio lines, depending on the platform,
printing the warning there may end up generating useless bug
reports.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-12-03 13:10:48 +01:00
Liu Gang
1aeef303b5 powerpc/gpio: Fix the wrong GPIO input data on MPC8572/MPC8536
For MPC8572/MPC8536, the status of GPIOs defined as output
cannot be determined by reading GPDAT register, so the code
use shadow data register instead. But the code may give the
wrong status of GPIOs defined as input under some scenarios:

1. If some pins were configured as inputs and were asserted
high before booting the kernel, the shadow data has been
initialized with those pin values.
2. Some pins have been configured as output first and have
been set to the high value, then reconfigured as input.

The above cases will make the shadow data for those input
pins to be set to high. Then reading the pin status will
always return high even if the actual pin status is low.

The code should eliminate the effects of the shadow data to
the input pins, and the status of those pins should be
read directly from GPDAT.

Cc: stable@vger.kernel.org
Acked-by: Scott Wood <scottwood@freescale.com>
Acked-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Liu Gang <Gang.Liu@freescale.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-12-03 13:10:48 +01:00
Alexandre Courbot
35c5d7fdc4 gpiolib: use platform GPIO mappings as fallback
For platforms that use device tree or ACPI as the standard way to look
GPIOs up, allow the platform-defined GPIO mappings to be used as a
fallback. This may be useful for platforms that need extra GPIOs mappings
not defined by the firmware.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-12-03 13:10:48 +01:00
Alexandre Courbot
56a39aac59 Documentation: gpiolib: add 00-INDEX file
Give a short overview of the various GPIO documentation files.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-12-03 13:10:48 +01:00
Alexandre Courbot
7cc67b9c74 gpiolib: fix lookup of platform-mapped GPIOs
A typo resulted in GPIO lookup failing unconditionally.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Reported-by: Stephen Warren <swarren@wwwdotorg.org>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-12-03 13:10:48 +01:00
Alexandre Courbot
c9a9972b6f gpiolib: add missing declarations
Add declaration of 'struct of_phandle_args' to avoid the following
warning:

  In file included from arch/arm/mach-tegra/board-paz00.c:21:0:
  include/linux/gpio/driver.h:102:17: warning: 'struct of_phandle_args' declared inside parameter list
  include/linux/gpio/driver.h:102:17: warning: its scope is only this definition or declaration, which is probably not what you want

Also proactively add other definitions/includes that could be missing
in other contexts.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Reported-by: Stephen Warren <swarren@wwwdotorg.org>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-12-03 13:10:47 +01:00
Laurent Pinchart
71493de7e5 sh-pfc: sh7372: Fix pin bias setup
When computing the pin configuration register offset the bias setup code
erroneously compares the pin number range with the loop index instead of
the pin number. Fix it.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-12-03 10:38:41 +01:00
Laurent Pinchart
5d27619498 sh-pfc: r8a7740: Fix pin bias setup
When computing the pin configuration register offset the bias setup code
erroneously compares the pin number range with the loop index instead of
the pin number. Fix it.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-12-03 10:38:39 +01:00
Dan Carpenter
9a991600e3 drm/tegra: return -EFAULT if copy_from_user() fails
copy_from_user() returns the number of bytes remaining if it fails, but
we want to return -EFAULT here.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2013-12-03 10:14:03 +01:00
Thierry Reding
d24b2898ce gpu: host1x: Fix a few sparse warnings
Include the bus.h header, so that various function declarations are
visible in the source file that implements those functions. This keeps
sparse from suggesting that they should be made static.

Make the host1x_bus_type variable static since it isn't used globally.

Finally replace the slightly unsafe dev_set_name(dev, name) by the more
secure dev_set_name(dev, "%s", name).

Signed-off-by: Thierry Reding <treding@nvidia.com>
2013-12-03 10:06:29 +01:00
Thierry Reding
9ab34151a9 drm/tegra: Force cast to __iomem to make sparse happy
The fbdev screen memory pointer is annotated __iomem, so cast the kernel
virtual address to that address space to make the warning go away.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2013-12-03 10:05:04 +01:00
Thierry Reding
9b57f5f2c5 drm/tegra: Make tegra_drm_driver static
There is no need to access it from other files now that the driver has
been decoupled from host1x.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2013-12-03 10:04:56 +01:00
Thierry Reding
a7ed68fcc7 drm/tegra: Fix address space mismatches
sparse complains because __user annotations aren't placed consistently.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2013-12-03 10:04:42 +01:00
Thierry Reding
7602fa1d29 drm/tegra: Tightly bind RGB output to DC
Previously the association to a DC was done via the encoder's .crtc
field. That has the disadvantage that when an encoder is detached from
its CRTC, that field is set to NULL, leading to situations where it is
impossible to access the DC registers required by the RGB output.

However, the coupling between DC and RGB output is really fixed on
Tegra. While they can be detached logically in DRM, the RGB output can
rely on the DC's existence.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2013-12-03 10:04:22 +01:00
Thierry Reding
37826519c4 drm/tegra: Make CRTC upcasting safer
When upcasting a NULL CRTC object, propagate the NULL pointer instead of
some invalid pointer. This allows subsequent code to check that the cast
object is valid.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2013-12-03 10:04:15 +01:00
Kailang Yang
0202e99c69 ALSA: hda/realtek - Independent of model for HP
Create single model for HP.
The headset jack module was difference between other chrome book.
It need to manual control Mic jack detect.

Chrome OS loaded driver by models. Remove old assigned fixup table from
ALC269 fixup list entry.

Signed-off-by: Kailang Yang <kailang@realtek.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-12-03 09:27:23 +01:00
David Henningsson
d59915d065 ALSA: hda - Fix headset mic input after muted internal mic (Dell/Realtek)
By trial and error, I found this patch could work around an issue
where the headset mic would stop working if you switch between the
internal mic and the headset mic, and the internal mic was muted.

It still takes a second or two before the headset mic actually starts
working, but still better than nothing.

Information update from Kailang:
  The verb was ADC digital mute(bit 6 default 1).
  Switch internal mic and headset mic will run alc_headset_mode_default.
  The coef index 0x11 will set to 0x0041.
  Because headset mode was fixed type. It doesn't need to run
  alc_determine_headset_type.
  So, the value still keep 0x0041. ADC was muted.

BugLink: https://bugs.launchpad.net/bugs/1256840
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-12-03 09:26:14 +01:00
Gerhard Sittig
2c0e641a96 dt: binding: reword PowerPC 8xxx GPIO documentation
re-format and re-word the device tree binding documentation for MPC8xxx
and compatibles, reference the common document for interrupt controllers
and remove outdated duplicate SoC specific information

Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Pawel Moll <Pawel.Moll@arm.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: <devicetree@vger.kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Gerhard Sittig <gsi@denx.de>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2013-12-03 00:01:03 -06:00