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506,942 commits

Author SHA1 Message Date
Mauro Carvalho Chehab
73f7065be6 [media] drx-j: get rid of the other typedefs at bsp_types.h
Most of the work were done by those small scripts:

for i in *; do sed s,pDRXFrequency_t,"s32 *",g <$i >a && mv a $i; done
for i in *; do sed s,DRXFrequency_t,"s32",g <$i >a && mv a $i; done
for i in *; do sed s,pDRXSymbolrate_t,"u32 *",g <$i >a && mv a $i; done
for i in *; do sed s,DRXSymbolrate_t,"u32",g <$i >a && mv a $i; done
for i in *; do sed s,FALSE,false,g <$i >a && mv a $i; done
for i in *; do sed s,TRUE,true,g <$i >a && mv a $i; done
for i in *; do sed s,Bool_t,bool,g <$i >a && mv a $i; done
for i in *; do sed s,pbool,"bool *",g <$i >a && mv a $i; done

The only remaining things there are the return values.

Acked-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-03-04 14:22:35 -03:00
Mauro Carvalho Chehab
43a431e4b2 [media] drx-j: get rid of the integer typedefs
Patch created using this small script:

for j in 8 16 32; do for i in *; do sed s,pu${j}_t,"u$j *",g <$i >a && mv a $i; done; done
for j in 8 16 32; do for i in *; do sed s,ps${j}_t,"s$j *",g <$i >a && mv a $i; done; done
for j in 8 16 32; do for i in *; do sed s,s${j}_t,"s$j",g <$i >a && mv a $i; done; done
for j in 8 16 32; do for i in *; do sed s,u${j}_t,"u$j",g <$i >a && mv a $i; done; done

and fixing the bsp_types.h header.

Acked-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-03-04 14:22:17 -03:00
Mauro Carvalho Chehab
bab3fccac9 [media] drx-j: remove the "const" annotate on HICommand()
After removing the typedef, it is now clear that HICommand() were
abusing of a var that was expecting to be constant:

drivers/media/dvb-frontends/drx39xyj/drxj.c: In function ‘HICommand’:
drivers/media/dvb-frontends/drx39xyj/drxj.c:2272:3: warning: passing argument 1 of ‘drxDapDRXJFunct_g.writeReg16Func’ discards ‘const’ qualifier from pointer target type [enabled by default]
drivers/media/dvb-frontends/drx39xyj/drxj.c:2272:3: note: expected ‘struct i2c_device_addr *’ but argument is of type ‘const struct i2c_device_addr *’
drivers/media/dvb-frontends/drx39xyj/drxj.c:2273:3: warning: passing argument 1 of ‘drxDapDRXJFunct_g.writeReg16Func’ discards ‘const’ qualifier from pointer target type [enabled by default]
drivers/media/dvb-frontends/drx39xyj/drxj.c:2273:3: note: expected ‘struct i2c_device_addr *’ but argument is of type ‘const struct i2c_device_addr *’
drivers/media/dvb-frontends/drx39xyj/drxj.c:2274:3: warning: passing argument 1 of ‘drxDapDRXJFunct_g.writeReg16Func’ discards ‘const’ qualifier from pointer target type [enabled by default]
drivers/media/dvb-frontends/drx39xyj/drxj.c:2274:3: note: expected ‘struct i2c_device_addr *’ but argument is of type ‘const struct i2c_device_addr *’
drivers/media/dvb-frontends/drx39xyj/drxj.c:2275:3: warning: passing argument 1 of ‘drxDapDRXJFunct_g.writeReg16Func’ discards ‘const’ qualifier from pointer target type [enabled by default]
drivers/media/dvb-frontends/drx39xyj/drxj.c:2275:3: note: expected ‘struct i2c_device_addr *’ but argument is of type ‘const struct i2c_device_addr *’
drivers/media/dvb-frontends/drx39xyj/drxj.c:2278:3: warning: passing argument 1 of ‘drxDapDRXJFunct_g.writeReg16Func’ discards ‘const’ qualifier from pointer target type [enabled by default]
drivers/media/dvb-frontends/drx39xyj/drxj.c:2278:3: note: expected ‘struct i2c_device_addr *’ but argument is of type ‘const struct i2c_device_addr *’
drivers/media/dvb-frontends/drx39xyj/drxj.c:2279:3: warning: passing argument 1 of ‘drxDapDRXJFunct_g.writeReg16Func’ discards ‘const’ qualifier from pointer target type [enabled by default]
drivers/media/dvb-frontends/drx39xyj/drxj.c:2279:3: note: expected ‘struct i2c_device_addr *’ but argument is of type ‘const struct i2c_device_addr *’
drivers/media/dvb-frontends/drx39xyj/drxj.c:2291:2: warning: passing argument 1 of ‘drxDapDRXJFunct_g.writeReg16Func’ discards ‘const’ qualifier from pointer target type [enabled by default]
drivers/media/dvb-frontends/drx39xyj/drxj.c:2291:2: note: expected ‘struct i2c_device_addr *’ but argument is of type ‘const struct i2c_device_addr *’
drivers/media/dvb-frontends/drx39xyj/drxj.c:2311:4: warning: passing argument 1 of ‘drxDapDRXJFunct_g.readReg16Func’ discards ‘const’ qualifier from pointer target type [enabled by default]
drivers/media/dvb-frontends/drx39xyj/drxj.c:2311:4: note: expected ‘struct i2c_device_addr *’ but argument is of type ‘const struct i2c_device_addr *’
drivers/media/dvb-frontends/drx39xyj/drxj.c:2315:3: warning: passing argument 1 of ‘drxDapDRXJFunct_g.readReg16Func’ discards ‘const’ qualifier from pointer target type [enabled by default]
drivers/media/dvb-frontends/drx39xyj/drxj.c:2315:3: note: expected ‘struct i2c_device_addr *’ but argument is of type ‘const struct i2c_device_addr *’

Acked-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-03-04 14:21:57 -03:00
Mauro Carvalho Chehab
5b223b390d [media] drx-j: get rid of the typedefs on bsp_i2c.h
Most of the hard work here were done by this small script:

for i in *; do sed s,pI2CDeviceAddr_t,"struct i2c_device_addr *",g <$i >a && mv a $i; done
for i in *; do sed s,I2CDeviceAddr_t,"struct i2c_device_addr",g <$i >a && mv a $i; done

Only bsp_i2c.h were added by hand.

Acked-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-03-04 14:21:37 -03:00
Mauro Carvalho Chehab
c7db16ae19 [media] drx-j: Fix CodingStyle
Make checkpatch.pl happy.

Acked-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-03-04 14:21:20 -03:00
Mauro Carvalho Chehab
3fc954a1e9 [media] drx-j: Fix compilation and un-comment it
There were some DVB internal API changes, since this driver were
written. Change it to work with the new API.

Acked-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-03-04 14:21:00 -03:00
Mauro Carvalho Chehab
443f18d0d5 [media] drx-j: CodingStyle fixes
Do the automatic CodingStyle fixes found at Lindent.

No functional changes.

Acked-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-03-04 14:20:30 -03:00
Devin Heitmueller
ca3355a947 [media] drx-j: put under 3-clause BSD license
Relicense the drx-j driver under a standard 3-clause BSD license, which makes
it GPL compatible.

This was done explicitly with permission from Trident Microsystems.

Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-03-04 14:20:27 -03:00
Devin Heitmueller
38b2df95c5 [media] drx-j: add a driver for Trident drx-j frontend
Add support for the Trident DRX-J driver, including a card profile for the
PCTV 80e which uses the chip.

Thanks to Trident for allowing the release of this code under a BSD license,
and of course Hauppauge/PCTV for pushing for its release to the community.

[pdickeybeta@gmail.com: modified to fix compilation errors and also to move
 the driver files from the drx39xy subdirectory to the frontends directory]

[m.chehab@samsung.com: fix merge conflicts, commented drx-j compilation and
 added EM28XX_R06_I2C_CLK setup also to the board setup]

Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-03-04 14:20:23 -03:00
Mauro Carvalho Chehab
4872b46b73 [media] DocBook: document DVB DMX_[ADD|REMOVE]_PID
Those ioctls were added back in 2009, at changeset 1cb662a314
but were never documented. Fortunately, the original commit is
good enough to serve as the basis for documenting it. Also, the
support for it is done by dmxdev implementation.

So, add a proper documentation for it, based on the description
of the original changeset.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-03-04 14:19:38 -03:00
Mauro Carvalho Chehab
e6876692ca [media] dvb_frontend: better handle lna set errors
If an attempt to set LNA fails, restore the cache to LNA_AUTO,
in order to make it to reflect the current LNA status.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-03-04 14:19:34 -03:00
Mauro Carvalho Chehab
52f7b00e64 [media] em28xx: Display the used DVB alternate
That helps to understand what's going there.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-03-04 14:19:18 -03:00
Mauro Carvalho Chehab
ffdeca885e [media] em28xx_dvb: only call the software filter if data
Several URBs will be simply not filled. Don't call the DVB
core software filter for those empty URBs.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-03-04 14:19:12 -03:00
Jiang Liu
75f05569d0 iommu/vt-d: Update IOMMU state when memory hotplug happens
If static identity domain is created, IOMMU driver needs to update
si_domain page table when memory hotplug event happens. Otherwise
PCI device DMA operations can't access the hot-added memory regions.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
2014-03-04 17:51:06 +01:00
Jiang Liu
2e45528930 iommu/vt-d: Unify the way to process DMAR device scope array
Now we have a PCI bus notification based mechanism to update DMAR
device scope array, we could extend the mechanism to support boot
time initialization too, which will help to unify and simplify
the implementation.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
2014-03-04 17:51:06 +01:00
Jiang Liu
59ce0515cd iommu/vt-d: Update DRHD/RMRR/ATSR device scope caches when PCI hotplug happens
Current Intel DMAR/IOMMU driver assumes that all PCI devices associated
with DMAR/RMRR/ATSR device scope arrays are created at boot time and
won't change at runtime, so it caches pointers of associated PCI device
object. That assumption may be wrong now due to:
1) introduction of PCI host bridge hotplug
2) PCI device hotplug through sysfs interfaces.

Wang Yijing has tried to solve this issue by caching <bus, dev, func>
tupple instead of the PCI device object pointer, but that's still
unreliable because PCI bus number may change in case of hotplug.
Please refer to http://lkml.org/lkml/2013/11/5/64
Message from Yingjing's mail:
after remove and rescan a pci device
[  611.857095] dmar: DRHD: handling fault status reg 2
[  611.857109] dmar: DMAR:[DMA Read] Request device [86:00.3] fault addr ffff7000
[  611.857109] DMAR:[fault reason 02] Present bit in context entry is clear
[  611.857524] dmar: DRHD: handling fault status reg 102
[  611.857534] dmar: DMAR:[DMA Read] Request device [86:00.3] fault addr ffff6000
[  611.857534] DMAR:[fault reason 02] Present bit in context entry is clear
[  611.857936] dmar: DRHD: handling fault status reg 202
[  611.857947] dmar: DMAR:[DMA Read] Request device [86:00.3] fault addr ffff5000
[  611.857947] DMAR:[fault reason 02] Present bit in context entry is clear
[  611.858351] dmar: DRHD: handling fault status reg 302
[  611.858362] dmar: DMAR:[DMA Read] Request device [86:00.3] fault addr ffff4000
[  611.858362] DMAR:[fault reason 02] Present bit in context entry is clear
[  611.860819] IPv6: ADDRCONF(NETDEV_UP): eth3: link is not ready
[  611.860983] dmar: DRHD: handling fault status reg 402
[  611.860995] dmar: INTR-REMAP: Request device [[86:00.3] fault index a4
[  611.860995] INTR-REMAP:[fault reason 34] Present field in the IRTE entry is clear

This patch introduces a new mechanism to update the DRHD/RMRR/ATSR device scope
caches by hooking PCI bus notification.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
2014-03-04 17:51:06 +01:00
Jiang Liu
0e242612d9 iommu/vt-d: Use RCU to protect global resources in interrupt context
Global DMA and interrupt remapping resources may be accessed in
interrupt context, so use RCU instead of rwsem to protect them
in such cases.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
2014-03-04 17:51:05 +01:00
Jiang Liu
3a5670e8ac iommu/vt-d: Introduce a rwsem to protect global data structures
Introduce a global rwsem dmar_global_lock, which will be used to
protect DMAR related global data structures from DMAR/PCI/memory
device hotplug operations in process context.

DMA and interrupt remapping related data structures are read most,
and only change when memory/PCI/DMAR hotplug event happens.
So a global rwsem solution is adopted for balance between simplicity
and performance.

For interrupt remapping driver, function intel_irq_remapping_supported(),
dmar_table_init(), intel_enable_irq_remapping(), disable_irq_remapping(),
reenable_irq_remapping() and enable_drhd_fault_handling() etc
are called during booting, suspending and resuming with interrupt
disabled, so no need to take the global lock.

For interrupt remapping entry allocation, the locking model is:
	down_read(&dmar_global_lock);
	/* Find corresponding iommu */
	iommu = map_hpet_to_ir(id);
	if (iommu)
		/*
		 * Allocate remapping entry and mark entry busy,
		 * the IOMMU won't be hot-removed until the
		 * allocated entry has been released.
		 */
		index = alloc_irte(iommu, irq, 1);
	up_read(&dmar_global_lock);

For DMA remmaping driver, we only uses the dmar_global_lock rwsem to
protect functions which are only called in process context. For any
function which may be called in interrupt context, we will use RCU
to protect them in following patches.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
2014-03-04 17:51:05 +01:00
Jiang Liu
b683b230a2 iommu/vt-d: Introduce macro for_each_dev_scope() to walk device scope entries
Introduce for_each_dev_scope()/for_each_active_dev_scope() to walk
{active} device scope entries. This will help following RCU lock
related patches.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
2014-03-04 17:51:04 +01:00
Jiang Liu
b5f82ddf22 iommu/vt-d: Fix error in detect ATS capability
Current Intel IOMMU driver only matches a PCIe root port with the first
DRHD unit with the samge segment number. It will report false result
if there are multiple DRHD units with the same segment number, thus fail
to detect ATS capability for some PCIe devices.

This patch refines function dmar_find_matched_atsr_unit() to search all
DRHD units with the same segment number.

An example DMAR table entries as below:
[1D0h 0464  2]                Subtable Type : 0002 <Root Port ATS Capability>
[1D2h 0466  2]                       Length : 0028
[1D4h 0468  1]                        Flags : 00
[1D5h 0469  1]                     Reserved : 00
[1D6h 0470  2]           PCI Segment Number : 0000

[1D8h 0472  1]      Device Scope Entry Type : 02
[1D9h 0473  1]                 Entry Length : 08
[1DAh 0474  2]                     Reserved : 0000
[1DCh 0476  1]               Enumeration ID : 00
[1DDh 0477  1]               PCI Bus Number : 00
[1DEh 0478  2]                     PCI Path : [02, 00]

[1E0h 0480  1]      Device Scope Entry Type : 02
[1E1h 0481  1]                 Entry Length : 08
[1E2h 0482  2]                     Reserved : 0000
[1E4h 0484  1]               Enumeration ID : 00
[1E5h 0485  1]               PCI Bus Number : 00
[1E6h 0486  2]                     PCI Path : [03, 00]

[1E8h 0488  1]      Device Scope Entry Type : 02
[1E9h 0489  1]                 Entry Length : 08
[1EAh 0490  2]                     Reserved : 0000
[1ECh 0492  1]               Enumeration ID : 00
[1EDh 0493  1]               PCI Bus Number : 00
[1EEh 0494  2]                     PCI Path : [03, 02]

[1F0h 0496  1]      Device Scope Entry Type : 02
[1F1h 0497  1]                 Entry Length : 08
[1F2h 0498  2]                     Reserved : 0000
[1F4h 0500  1]               Enumeration ID : 00
[1F5h 0501  1]               PCI Bus Number : 00
[1F6h 0502  2]                     PCI Path : [03, 03]

[1F8h 0504  2]                Subtable Type : 0002 <Root Port ATS Capability>
[1FAh 0506  2]                       Length : 0020
[1FCh 0508  1]                        Flags : 00
[1FDh 0509  1]                     Reserved : 00
[1FEh 0510  2]           PCI Segment Number : 0000

[200h 0512  1]      Device Scope Entry Type : 02
[201h 0513  1]                 Entry Length : 08
[202h 0514  2]                     Reserved : 0000
[204h 0516  1]               Enumeration ID : 00
[205h 0517  1]               PCI Bus Number : 40
[206h 0518  2]                     PCI Path : [02, 00]

[208h 0520  1]      Device Scope Entry Type : 02
[209h 0521  1]                 Entry Length : 08
[20Ah 0522  2]                     Reserved : 0000
[20Ch 0524  1]               Enumeration ID : 00
[20Dh 0525  1]               PCI Bus Number : 40
[20Eh 0526  2]                     PCI Path : [02, 02]

[210h 0528  1]      Device Scope Entry Type : 02
[211h 0529  1]                 Entry Length : 08
[212h 0530  2]                     Reserved : 0000
[214h 0532  1]               Enumeration ID : 00
[215h 0533  1]               PCI Bus Number : 40
[216h 0534  2]                     PCI Path : [03, 00]

[218h 0536  2]                Subtable Type : 0002 <Root Port ATS Capability>
[21Ah 0538  2]                       Length : 0020
[21Ch 0540  1]                        Flags : 00
[21Dh 0541  1]                     Reserved : 00
[21Eh 0542  2]           PCI Segment Number : 0000

[220h 0544  1]      Device Scope Entry Type : 02
[221h 0545  1]                 Entry Length : 08
[222h 0546  2]                     Reserved : 0000
[224h 0548  1]               Enumeration ID : 00
[225h 0549  1]               PCI Bus Number : 80
[226h 0550  2]                     PCI Path : [02, 00]

[228h 0552  1]      Device Scope Entry Type : 02
[229h 0553  1]                 Entry Length : 08
[22Ah 0554  2]                     Reserved : 0000
[22Ch 0556  1]               Enumeration ID : 00
[22Dh 0557  1]               PCI Bus Number : 80
[22Eh 0558  2]                     PCI Path : [02, 02]

[230h 0560  1]      Device Scope Entry Type : 02
[231h 0561  1]                 Entry Length : 08
[232h 0562  2]                     Reserved : 0000
[234h 0564  1]               Enumeration ID : 00
[235h 0565  1]               PCI Bus Number : 80
[236h 0566  2]                     PCI Path : [03, 00]

[238h 0568  2]                Subtable Type : 0002 <Root Port ATS Capability>
[23Ah 0570  2]                       Length : 0020
[23Ch 0572  1]                        Flags : 00
[23Dh 0573  1]                     Reserved : 00
[23Eh 0574  2]           PCI Segment Number : 0000

[240h 0576  1]      Device Scope Entry Type : 02
[241h 0577  1]                 Entry Length : 08
[242h 0578  2]                     Reserved : 0000
[244h 0580  1]               Enumeration ID : 00
[245h 0581  1]               PCI Bus Number : C0
[246h 0582  2]                     PCI Path : [02, 00]

[248h 0584  1]      Device Scope Entry Type : 02
[249h 0585  1]                 Entry Length : 08
[24Ah 0586  2]                     Reserved : 0000
[24Ch 0588  1]               Enumeration ID : 00
[24Dh 0589  1]               PCI Bus Number : C0
[24Eh 0590  2]                     PCI Path : [02, 02]

[250h 0592  1]      Device Scope Entry Type : 02
[251h 0593  1]                 Entry Length : 08
[252h 0594  2]                     Reserved : 0000
[254h 0596  1]               Enumeration ID : 00
[255h 0597  1]               PCI Bus Number : C0
[256h 0598  2]                     PCI Path : [03, 00]

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
2014-03-04 17:51:04 +01:00
Jiang Liu
a4eaa86c0c iommu/vt-d: Check for NULL pointer when freeing IOMMU data structure
Domain id 0 will be assigned to invalid translation without allocating
domain data structure if DMAR unit supports caching mode. So in function
free_dmar_iommu(), we should check whether the domain pointer is NULL,
otherwise it will cause system crash as below:
[    6.790519] BUG: unable to handle kernel NULL pointer dereference at 00000000000000c8
[    6.799520] IP: [<ffffffff810e2dc8>] __lock_acquire+0x11f8/0x1430
[    6.806493] PGD 0
[    6.817972] Oops: 0000 [#1] SMP DEBUG_PAGEALLOC
[    6.823303] Modules linked in:
[    6.826862] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.14.0-rc1+ #126
[    6.834252] Hardware name: Intel Corporation BRICKLAND/BRICKLAND, BIOS BRIVTIN1.86B.0047.R00.1402050741 02/05/2014
[    6.845951] task: ffff880455a80000 ti: ffff880455a88000 task.ti: ffff880455a88000
[    6.854437] RIP: 0010:[<ffffffff810e2dc8>]  [<ffffffff810e2dc8>] __lock_acquire+0x11f8/0x1430
[    6.864154] RSP: 0000:ffff880455a89ce0  EFLAGS: 00010046
[    6.870179] RAX: 0000000000000046 RBX: 0000000000000002 RCX: 0000000000000000
[    6.878249] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000c8
[    6.886318] RBP: ffff880455a89d40 R08: 0000000000000002 R09: 0000000000000001
[    6.894387] R10: 0000000000000000 R11: 0000000000000001 R12: ffff880455a80000
[    6.902458] R13: 0000000000000000 R14: 00000000000000c8 R15: 0000000000000000
[    6.910520] FS:  0000000000000000(0000) GS:ffff88045b800000(0000) knlGS:0000000000000000
[    6.919687] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    6.926198] CR2: 00000000000000c8 CR3: 0000000001e0e000 CR4: 00000000001407f0
[    6.934269] Stack:
[    6.936588]  ffffffffffffff10 ffffffff810f59db 0000000000000010 0000000000000246
[    6.945219]  ffff880455a89d10 0000000000000000 ffffffff82bcb980 0000000000000046
[    6.953850]  0000000000000000 0000000000000000 0000000000000002 0000000000000000
[    6.962482] Call Trace:
[    6.965300]  [<ffffffff810f59db>] ? vprintk_emit+0x4fb/0x5a0
[    6.971716]  [<ffffffff810e3185>] lock_acquire+0x185/0x200
[    6.977941]  [<ffffffff821fbbee>] ? init_dmars+0x839/0xa1d
[    6.984167]  [<ffffffff81870b06>] _raw_spin_lock_irqsave+0x56/0x90
[    6.991158]  [<ffffffff821fbbee>] ? init_dmars+0x839/0xa1d
[    6.997380]  [<ffffffff821fbbee>] init_dmars+0x839/0xa1d
[    7.003410]  [<ffffffff8147d575>] ? pci_get_dev_by_id+0x75/0xd0
[    7.010119]  [<ffffffff821fc146>] intel_iommu_init+0x2f0/0x502
[    7.016735]  [<ffffffff821a7947>] ? iommu_setup+0x27d/0x27d
[    7.023056]  [<ffffffff821a796f>] pci_iommu_init+0x28/0x52
[    7.029282]  [<ffffffff81002162>] do_one_initcall+0xf2/0x220
[    7.035702]  [<ffffffff810a4a29>] ? parse_args+0x2c9/0x450
[    7.041919]  [<ffffffff8219d1b1>] kernel_init_freeable+0x1c9/0x25b
[    7.048919]  [<ffffffff8219c8d2>] ? do_early_param+0x8a/0x8a
[    7.055336]  [<ffffffff8184d3f0>] ? rest_init+0x150/0x150
[    7.061461]  [<ffffffff8184d3fe>] kernel_init+0xe/0x100
[    7.067393]  [<ffffffff8187b5fc>] ret_from_fork+0x7c/0xb0
[    7.073518]  [<ffffffff8184d3f0>] ? rest_init+0x150/0x150
[    7.079642] Code: 01 76 18 89 05 46 04 36 01 41 be 01 00 00 00 e9 2f 02 00 00 0f 1f 80 00 00 00 00 41 be 01 00 00 00 e9 1d 02 00 00 0f 1f 44 00 00 <49> 81 3e c0 31 34 82 b8 01 00 00 00 0f 44 d8 41 83 ff 01 0f 87
[    7.104944] RIP  [<ffffffff810e2dc8>] __lock_acquire+0x11f8/0x1430
[    7.112008]  RSP <ffff880455a89ce0>
[    7.115988] CR2: 00000000000000c8
[    7.119784] ---[ end trace 13d756f0f462c538 ]---
[    7.125034] note: swapper/0[1] exited with preempt_count 1
[    7.131285] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000009
[    7.131285]

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
2014-03-04 17:51:03 +01:00
Jiang Liu
9ebd682e5a iommu/vt-d: Fix incorrect iommu_count for si_domain
The iommu_count field in si_domain(static identity domain) is
initialized to zero and never increases. It will underflow
when tearing down iommu unit in function free_dmar_iommu()
and leak memory. So refine code to correctly manage
si_domain->iommu_count.

Warning message caused by si_domain memory leak:
[   14.609681] IOMMU: Setting RMRR:
[   14.613496] Ignoring identity map for HW passthrough device 0000:00:1a.0 [0xbdcfd000 - 0xbdd1dfff]
[   14.623809] Ignoring identity map for HW passthrough device 0000:00:1d.0 [0xbdcfd000 - 0xbdd1dfff]
[   14.634162] IOMMU: Prepare 0-16MiB unity mapping for LPC
[   14.640329] Ignoring identity map for HW passthrough device 0000:00:1f.0 [0x0 - 0xffffff]
[   14.673360] IOMMU: dmar init failed
[   14.678157] kmem_cache_destroy iommu_devinfo: Slab cache still has objects
[   14.686076] CPU: 12 PID: 1 Comm: swapper/0 Not tainted 3.13.0-rc1-gerry+ #59
[   14.694176] Hardware name: Intel Corporation LH Pass ........../SVRBD-ROW_T, BIOS SE5C600.86B.99.99.x059.091020121352 09/10/2012
[   14.707412]  0000000000000000 ffff88042dd33db0 ffffffff8156223d ffff880c2cc37c00
[   14.716407]  ffff88042dd33dc8 ffffffff811790b1 ffff880c2d3533b8 ffff88042dd33e00
[   14.725468]  ffffffff81dc7a6a ffffffff81b1e8e0 ffffffff81f84058 ffffffff81d8a711
[   14.734464] Call Trace:
[   14.737453]  [<ffffffff8156223d>] dump_stack+0x4d/0x66
[   14.743430]  [<ffffffff811790b1>] kmem_cache_destroy+0xf1/0x100
[   14.750279]  [<ffffffff81dc7a6a>] intel_iommu_init+0x122/0x56a
[   14.757035]  [<ffffffff81d8a711>] ? iommu_setup+0x27d/0x27d
[   14.763491]  [<ffffffff81d8a739>] pci_iommu_init+0x28/0x52
[   14.769846]  [<ffffffff81000342>] do_one_initcall+0x122/0x180
[   14.776506]  [<ffffffff81077738>] ? parse_args+0x1e8/0x320
[   14.782866]  [<ffffffff81d850e8>] kernel_init_freeable+0x1e1/0x26c
[   14.789994]  [<ffffffff81d84833>] ? do_early_param+0x88/0x88
[   14.796556]  [<ffffffff8154ffc0>] ? rest_init+0xd0/0xd0
[   14.802626]  [<ffffffff8154ffce>] kernel_init+0xe/0x130
[   14.808698]  [<ffffffff815756ac>] ret_from_fork+0x7c/0xb0
[   14.814963]  [<ffffffff8154ffc0>] ? rest_init+0xd0/0xd0
[   14.821640] kmem_cache_destroy iommu_domain: Slab cache still has objects
[   14.829456] CPU: 12 PID: 1 Comm: swapper/0 Not tainted 3.13.0-rc1-gerry+ #59
[   14.837562] Hardware name: Intel Corporation LH Pass ........../SVRBD-ROW_T, BIOS SE5C600.86B.99.99.x059.091020121352 09/10/2012
[   14.850803]  0000000000000000 ffff88042dd33db0 ffffffff8156223d ffff88102c1ee3c0
[   14.861222]  ffff88042dd33dc8 ffffffff811790b1 ffff880c2d3533b8 ffff88042dd33e00
[   14.870284]  ffffffff81dc7a76 ffffffff81b1e8e0 ffffffff81f84058 ffffffff81d8a711
[   14.879271] Call Trace:
[   14.882227]  [<ffffffff8156223d>] dump_stack+0x4d/0x66
[   14.888197]  [<ffffffff811790b1>] kmem_cache_destroy+0xf1/0x100
[   14.895034]  [<ffffffff81dc7a76>] intel_iommu_init+0x12e/0x56a
[   14.901781]  [<ffffffff81d8a711>] ? iommu_setup+0x27d/0x27d
[   14.908238]  [<ffffffff81d8a739>] pci_iommu_init+0x28/0x52
[   14.914594]  [<ffffffff81000342>] do_one_initcall+0x122/0x180
[   14.921244]  [<ffffffff81077738>] ? parse_args+0x1e8/0x320
[   14.927598]  [<ffffffff81d850e8>] kernel_init_freeable+0x1e1/0x26c
[   14.934738]  [<ffffffff81d84833>] ? do_early_param+0x88/0x88
[   14.941309]  [<ffffffff8154ffc0>] ? rest_init+0xd0/0xd0
[   14.947380]  [<ffffffff8154ffce>] kernel_init+0xe/0x130
[   14.953430]  [<ffffffff815756ac>] ret_from_fork+0x7c/0xb0
[   14.959689]  [<ffffffff8154ffc0>] ? rest_init+0xd0/0xd0
[   14.966299] kmem_cache_destroy iommu_iova: Slab cache still has objects
[   14.973923] CPU: 12 PID: 1 Comm: swapper/0 Not tainted 3.13.0-rc1-gerry+ #59
[   14.982020] Hardware name: Intel Corporation LH Pass ........../SVRBD-ROW_T, BIOS SE5C600.86B.99.99.x059.091020121352 09/10/2012
[   14.995263]  0000000000000000 ffff88042dd33db0 ffffffff8156223d ffff88042cb5c980
[   15.004265]  ffff88042dd33dc8 ffffffff811790b1 ffff880c2d3533b8 ffff88042dd33e00
[   15.013322]  ffffffff81dc7a82 ffffffff81b1e8e0 ffffffff81f84058 ffffffff81d8a711
[   15.022318] Call Trace:
[   15.025238]  [<ffffffff8156223d>] dump_stack+0x4d/0x66
[   15.031202]  [<ffffffff811790b1>] kmem_cache_destroy+0xf1/0x100
[   15.038038]  [<ffffffff81dc7a82>] intel_iommu_init+0x13a/0x56a
[   15.044786]  [<ffffffff81d8a711>] ? iommu_setup+0x27d/0x27d
[   15.051242]  [<ffffffff81d8a739>] pci_iommu_init+0x28/0x52
[   15.057601]  [<ffffffff81000342>] do_one_initcall+0x122/0x180
[   15.064254]  [<ffffffff81077738>] ? parse_args+0x1e8/0x320
[   15.070608]  [<ffffffff81d850e8>] kernel_init_freeable+0x1e1/0x26c
[   15.077747]  [<ffffffff81d84833>] ? do_early_param+0x88/0x88
[   15.084300]  [<ffffffff8154ffc0>] ? rest_init+0xd0/0xd0
[   15.090362]  [<ffffffff8154ffce>] kernel_init+0xe/0x130
[   15.096431]  [<ffffffff815756ac>] ret_from_fork+0x7c/0xb0
[   15.102693]  [<ffffffff8154ffc0>] ? rest_init+0xd0/0xd0
[   15.189273] PCI-DMA: Using software bounce buffering for IO (SWIOTLB)

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
2014-03-04 17:51:02 +01:00
Jiang Liu
92d03cc8d0 iommu/vt-d: Reduce duplicated code to handle virtual machine domains
Reduce duplicated code to handle virtual machine domains, there's no
functionality changes. It also improves code readability.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
2014-03-04 17:51:01 +01:00
Jiang Liu
e85bb5d4d1 iommu/vt-d: Free resources if failed to create domain for PCIe endpoint
Enhance function get_domain_for_dev() to release allocated resources
if failed to create domain for PCIe endpoint, otherwise the allocated
resources will get lost.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
2014-03-04 17:51:01 +01:00
Jiang Liu
745f2586e7 iommu/vt-d: Simplify function get_domain_for_dev()
Function get_domain_for_dev() is a little complex, simplify it
by factoring out dmar_search_domain_by_dev_info() and
dmar_insert_dev_info().

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
2014-03-04 17:51:01 +01:00
Jiang Liu
b94e4117f8 iommu/vt-d: Move private structures and variables into intel-iommu.c
Move private structures and variables into intel-iommu.c, which will
help to simplify locking policy for hotplug. Also delete redundant
declarations.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
2014-03-04 17:51:00 +01:00
Jiang Liu
bb3a6b7845 iommu/vt-d: Factor out dmar_alloc_dev_scope() for later reuse
Factor out function dmar_alloc_dev_scope() from dmar_parse_dev_scope()
for later reuse.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
2014-03-04 17:51:00 +01:00
Jiang Liu
7e7dfab71a iommu/vt-d: Avoid caching stale domain_device_info when hot-removing PCI device
Function device_notifier() in intel-iommu.c only remove domain_device_info
data structure associated with a PCI device when handling PCI device
driver unbinding events. If a PCI device has never been bound to a PCI
device driver, there won't be BUS_NOTIFY_UNBOUND_DRIVER event when
hot-removing the PCI device. So associated domain_device_info data
structure may get lost.

On the other hand, if iommu_pass_through is enabled, function
iommu_prepare_static_indentify_mapping() will create domain_device_info
data structure for each PCIe to PCIe bridge and PCIe endpoint,
no matter whether there are drivers associated with those PCIe devices
or not. So those domain_device_info data structures will get lost when
hot-removing the assocated PCIe devices if they have never bound to
any PCI device driver.

To be even worse, it's not only an memory leak issue, but also an
caching of stale information bug because the memory are kept in
device_domain_list and domain->devices lists.

Fix the bug by trying to remove domain_device_info data structure when
handling BUS_NOTIFY_DEL_DEVICE event.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
2014-03-04 17:51:00 +01:00
Jiang Liu
816997d03b iommu/vt-d: Avoid caching stale domain_device_info and fix memory leak
Function device_notifier() in intel-iommu.c fails to remove
device_domain_info data structures for PCI devices if they are
associated with si_domain because iommu_no_mapping() returns true
for those PCI devices. This will cause memory leak and caching of
stale information in domain->devices list.

So fix the issue by not calling iommu_no_mapping() and skipping check
of iommu_pass_through.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
2014-03-04 17:50:59 +01:00
Jiang Liu
989d51fc99 iommu/vt-d: Avoid double free of g_iommus on error recovery path
Array 'g_iommus' may be freed twice on error recovery path in function
init_dmars() and free_dmar_iommu(), thus cause random system crash as
below.

[    6.774301] IOMMU: dmar init failed
[    6.778310] PCI-DMA: Using software bounce buffering for IO (SWIOTLB)
[    6.785615] software IO TLB [mem 0x76bcf000-0x7abcf000] (64MB) mapped at [ffff880076bcf000-ffff88007abcefff]
[    6.796887] general protection fault: 0000 [#1] SMP DEBUG_PAGEALLOC
[    6.804173] Modules linked in:
[    6.807731] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.14.0-rc1+ #108
[    6.815122] Hardware name: Intel Corporation BRICKLAND/BRICKLAND, BIOS BRIVTIN1.86B.0047.R00.1402050741 02/05/2014
[    6.836000] task: ffff880455a80000 ti: ffff880455a88000 task.ti: ffff880455a88000
[    6.844487] RIP: 0010:[<ffffffff8143eea6>]  [<ffffffff8143eea6>] memcpy+0x6/0x110
[    6.853039] RSP: 0000:ffff880455a89cc8  EFLAGS: 00010293
[    6.859064] RAX: ffff006568636163 RBX: ffff00656863616a RCX: 0000000000000005
[    6.867134] RDX: 0000000000000005 RSI: ffffffff81cdc439 RDI: ffff006568636163
[    6.875205] RBP: ffff880455a89d30 R08: 000000000001bc3b R09: 0000000000000000
[    6.883275] R10: 0000000000000000 R11: ffffffff81cdc43e R12: ffff880455a89da8
[    6.891338] R13: ffff006568636163 R14: 0000000000000005 R15: ffffffff81cdc439
[    6.899408] FS:  0000000000000000(0000) GS:ffff88045b800000(0000) knlGS:0000000000000000
[    6.908575] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    6.915088] CR2: ffff88047e1ff000 CR3: 0000000001e0e000 CR4: 00000000001407f0
[    6.923160] Stack:
[    6.925487]  ffffffff8143c904 ffff88045b407e00 ffff006568636163 ffff006568636163
[    6.934113]  ffffffff8120a1a9 ffffffff81cdc43e 0000000000000007 0000000000000000
[    6.942747]  ffff880455a89da8 ffff006568636163 0000000000000007 ffffffff81cdc439
[    6.951382] Call Trace:
[    6.954197]  [<ffffffff8143c904>] ? vsnprintf+0x124/0x6f0
[    6.960323]  [<ffffffff8120a1a9>] ? __kmalloc_track_caller+0x169/0x360
[    6.967716]  [<ffffffff81440e1b>] kvasprintf+0x6b/0x80
[    6.973552]  [<ffffffff81432bf1>] kobject_set_name_vargs+0x21/0x70
[    6.980552]  [<ffffffff8143393d>] kobject_init_and_add+0x4d/0x90
[    6.987364]  [<ffffffff812067c9>] ? __kmalloc+0x169/0x370
[    6.993492]  [<ffffffff8102dbbc>] ? cache_add_dev+0x17c/0x4f0
[    7.000005]  [<ffffffff8102ddfa>] cache_add_dev+0x3ba/0x4f0
[    7.006327]  [<ffffffff821a87ca>] ? i8237A_init_ops+0x14/0x14
[    7.012842]  [<ffffffff821a87f8>] cache_sysfs_init+0x2e/0x61
[    7.019260]  [<ffffffff81002162>] do_one_initcall+0xf2/0x220
[    7.025679]  [<ffffffff810a4a29>] ? parse_args+0x2c9/0x450
[    7.031903]  [<ffffffff8219d1b1>] kernel_init_freeable+0x1c9/0x25b
[    7.038904]  [<ffffffff8219c8d2>] ? do_early_param+0x8a/0x8a
[    7.045322]  [<ffffffff8184d5e0>] ? rest_init+0x150/0x150
[    7.051447]  [<ffffffff8184d5ee>] kernel_init+0xe/0x100
[    7.057380]  [<ffffffff8187b87c>] ret_from_fork+0x7c/0xb0
[    7.063503]  [<ffffffff8184d5e0>] ? rest_init+0x150/0x150
[    7.069628] Code: 89 e5 53 48 89 fb 75 16 80 7f 3c 00 75 05 e8 d2 f9 ff ff 48 8b 43 58 48 2b 43 50 88 43 4e 5b 5d c3 90 90 90 90 48 89 f8 48 89 d1 <f3> a4 c3 03 83 e2 07 f3 48 a5 89 d1 f3 a4 c3 20 4c 8b 06 4c 8b
[    7.094960] RIP  [<ffffffff8143eea6>] memcpy+0x6/0x110
[    7.100856]  RSP <ffff880455a89cc8>
[    7.104864] ---[ end trace b5d3fdc6c6c28083 ]---
[    7.110142] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b
[    7.110142]
[    7.120540] Kernel Offset: 0x0 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffff9fffffff)

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
2014-03-04 17:50:59 +01:00
David Lanzendörfer
e2315012c6 ARM: sun4i: dt: Add support for the INet-97F_Rev_02 board
This patch adds basic support for the INet-97F_Rev_02 board found in various
low cost consumer tablet devices (http://linux-sunxi.org/INet-97F_Rev_02)

Signed-off-by: David Lanzendörfer <david.lanzendoerfer@o2s.ch>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-03-04 17:47:03 +01:00
Balaji T K
a2e771522c mmc: omap_hsmmc: add autocmd23 support
Add support for autocmd23 support

Signed-off-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Chris Ball <chris@printf.net>
2014-03-04 11:46:49 -05:00
Balaji T K
bf129e1ca1 mmc: omap_hsmmc: add cmd23 support
Add set block count command support for close ended multiblock read/write.

Signed-off-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Chris Ball <chris@printf.net>
2014-03-04 11:46:48 -05:00
Balaji T K
9d0253341b mmc: omap_hsmmc: split dma setup
split start dma function into setup and start dma to keep track of
host_cookie when cmd23 support is enabled along with async request.

Signed-off-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Chris Ball <chris@printf.net>
2014-03-04 11:46:37 -05:00
Hans de Goede
dcadf59e15 ARM: sun4i: dt: Add support for the A10-OLinuXino-LIME board
This add support for the A10-OLinuXino-LIME:
https://www.olimex.com/Products/OLinuXino/A10/A10-OLinuXino-LIME

A low cost Allwinner A10 based dev-board, with sata, ethernet, hdmi and 2x USB.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-03-04 17:46:35 +01:00
Zalan Blenessy
e2f02651ba ARM: sun7i: dt: Add USB host nodes to a20-olinuxino-micro dts
Add nodes for the usb-phy and ehci- and ohci-usb-host controllers.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-03-04 17:46:05 +01:00
Roman Byshko
52305e24ac ARM: sun7i: dt: Add USB host nodes to cubieboard2 dts
Add nodes for the usb-phy and ehci- and ohci-usb-host controllers.

Signed-off-by: Roman Byshko <rbyshko@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-03-04 17:45:58 +01:00
Hans de Goede
a415eef218 ARM: sun7i: dt: Add USB host nodes to cubietruck dts
Add nodes for the usb-phy and ehci- and ohci-usb-host controllers.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-03-04 17:45:54 +01:00
Hans de Goede
a83447f5c6 ARM: sun5i: dt: Add USB host nodes to a13-olinuxino-micro
Add nodes for the usb-phy and ehci- and ohci-usb-host controllers.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-03-04 17:45:47 +01:00
Hans de Goede
72f4e49830 ARM: sun5i: dt: Add USB host nodes to a10s-olinuxino-micro
Add nodes for the usb-phy and ehci- and ohci-usb-host controllers.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-03-04 17:45:38 +01:00
Roman Byshko
4703bc83fa ARM: sun5i: dt: Add USB host nodes to A13-Olinuxino
Add nodes for the usb-phy and ehci- and ohci-usb-host controllers.

Signed-off-by: Roman Byshko <rbyshko@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-03-04 17:45:32 +01:00
Hans de Goede
77978a3728 ARM: sun4i: dt: Add USB host nodes to pcduino.dts
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-03-04 17:45:23 +01:00
Hans de Goede
b7b8ce3c07 ARM: sun4i: dt: Add USB host nodes to mini-xplus dts
Add nodes for the usb-phy and ehci- and ohci-usb-host controllers.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-03-04 17:45:14 +01:00
Balaji T K
d4b2c375fc mmc: omap_hsmmc: fix request done for sbc error case
mrq is not populated for set block count(cmd23) command.
Use block read/write mmc_commond pointer for request done and
avoid NULL pointer access in error case for sbc (cmd23).

Signed-off-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Chris Ball <chris@printf.net>
2014-03-04 11:45:10 -05:00
Hans de Goede
ca78c26c0b ARM: sun4i: dt: Add USB host nodes to hackberry dts
Add nodes for the usb-phy and ehci- and ohci-usb-host controllers.

Based on fex file settings, the fex file also contains a mysterious line:
usb_hub_vcc_en_gpio = port:PB09<1><0><default><0>

Which also clashes with usbc0, which has:
usb_drv_vbus_gpio = port:PB09<1><0><default><0>

So if usb does not work properly we need someone with a hackberry to look
closer into this.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-03-04 17:45:07 +01:00
Balaji T K
6e3076c27d mmc: omap_hsmmc: save clock rate to use in interrupt context
clk_get_rate throws DEBUG_LOCKS_WARN_ON(in_interrupt()) warning
if called from interrupt context.
use cached clock rate in set_data_timeout, so that
set_data_timeout can be called from interrupt context.

Signed-off-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Chris Ball <chris@printf.net>
2014-03-04 11:45:07 -05:00
Balaji T K
4ea42235b5 mmc: omap_hsmmc: remove redundant reset done
Remove redundant reset done check since omap hwmod layer ensures IP reset.

Signed-off-by: Balaji T K <balajitk@ti.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Chris Ball <chris@printf.net>
2014-03-04 11:45:05 -05:00
Balaji T K
19df45bcd7 mmc: omap_hsmmc: fix return error code for of_get_hsmmc_pdata
of_get_hsmmc_pdata returns a pointer, returning NULL is invalid,
return ERR_PTR for error case.

Signed-off-by: Balaji T K <balajitk@ti.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Chris Ball <chris@printf.net>
2014-03-04 11:45:02 -05:00
Balaji T K
2cf171cb25 mmc: omap_hsmmc: remove pbias workaround
remove pbias workaround

Signed-off-by: Balaji T K <balajitk@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Tested-by: Florian Vaussard <florian.vaussard@epfl.ch>
Tested-by: Stefan Roese <sr@denx.de>
Signed-off-by: Chris Ball <chris@printf.net>
2014-03-04 11:44:58 -05:00
Balaji T K
12a7108787 ARM: OMAP: enable SYSCON and REGULATOR_PBIAS in omap2plus_defconfig
Enable REGULATOR_PBIAS needed for SD card on most OMAPs.

Signed-off-by: Balaji T K <balajitk@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Tested-by: Florian Vaussard <florian.vaussard@epfl.ch>
Tested-by: Stefan Roese <sr@denx.de>
Signed-off-by: Chris Ball <chris@printf.net>
2014-03-04 11:44:56 -05:00