Commit graph

336,237 commits

Author SHA1 Message Date
Asai Thambi S P
45422e7431 mtip32xx: Change printk to pr_xxxx
Changed printk to be compliant with latest style changes

Signed-off-by: Asai Thambi S P <asamymuthupa@micron.com>
Signed-off-by: Selvan Mani <smani@micron.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2012-09-12 22:20:11 +02:00
Asai Thambi S P
b62868e50e mtip32xx: Proper reporting of write protect status on big-endian
Proper reporting of write protect status on big-endian

Signed-off-by: Asai Thambi S P <asamymuthupa@micron.com>
Signed-off-by: Selvan Mani <smani@micron.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2012-09-12 22:19:59 +02:00
Asai Thambi S P
d7c8b94548 mtip32xx: Increase timeout for standby command
Increased timeout for standby command to work with larger capacity drives

Signed-off-by: Asai Thambi S P <asamymuthupa@micron.com>
Signed-off-by: Selvan Mani <smani@micron.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2012-09-12 22:19:49 +02:00
Asai Thambi S P
12a166c919 mtip32xx: Handle NCQ commands during the security locked state
Return error for NCQ commands when the drive is in security locked state

Signed-off-by: Asai Thambi S P <asamymuthupa@micron.com>
Signed-off-by: Selvan Mani <smani@micron.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2012-09-12 22:19:39 +02:00
Asai Thambi S P
1a131458dd mtip32xx: Add support for new devices
Added supported device IDs in pci table

Signed-off-by: Asai Thambi S P <asamymuthupa@micron.com>
Signed-off-by: Selvan Mani <smani@micron.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2012-09-12 22:19:29 +02:00
Jiang Liu
2ccc246d9c xen-pcifront: Use hotplug-safe pci_get_domain_bus_and_slot()
Following code has a race window between pci_find_bus() and pci_get_slot()
if PCI hotplug operation happens between them which removes the pci_bus.
So use PCI hotplug safe interface pci_get_domain_bus_and_slot() instead,
which also reduces code complexity.

    struct pci_bus *pci_bus = pci_find_bus(domain, busno);
    struct pci_dev *pci_dev = pci_get_slot(pci_bus, devfn);

Tested-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2012-09-12 14:15:16 -06:00
Jiang Liu
433efd2247 PCI: Use hotplug-safe pci_get_domain_bus_and_slot()
Following code has a race window between pci_find_bus() and pci_get_slot()
if PCI hotplug operation happens between them which removes the pci_bus.
So use PCI hotplug safe interface pci_get_domain_bus_and_slot() instead,
which also reduces code complexity.

    struct pci_bus *pci_bus = pci_find_bus(domain, busno);
    struct pci_dev *pci_dev = pci_get_slot(pci_bus, devfn);

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2012-09-12 14:14:30 -06:00
Jiang Liu
a9d18b37e4 PCI/cpcihp: Use hotplug-safe pci_get_domain_bus_and_slot()
Following code has a race window between pci_find_bus() and pci_get_slot()
if PCI hotplug operation happens between them which removes the pci_bus.
So use PCI hotplug safe interface pci_get_domain_bus_and_slot() instead,
which also reduces code complexity.

    struct pci_bus *pci_bus = pci_find_bus(domain, busno);
    struct pci_dev *pci_dev = pci_get_slot(pci_bus, devfn);

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2012-09-12 14:13:59 -06:00
Jiang Liu
f85567c89e PCI/vga: Use hotplug-safe pci_get_domain_bus_and_slot()
Following code has a race window between pci_find_bus() and pci_get_slot()
if PCI hotplug operation happens between them which removes the pci_bus.
So use PCI hotplug safe interface pci_get_domain_bus_and_slot() instead,
which also reduces code complexity.

    struct pci_bus *pci_bus = pci_find_bus(domain, busno);
    struct pci_dev *pci_dev = pci_get_slot(pci_bus, devfn);

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2012-09-12 14:13:11 -06:00
Jiang Liu
ddec11b145 ia64/PCI: Use hotplug-safe pci_get_domain_bus_and_slot()
Following code has a race window between pci_find_bus() and pci_get_slot()
if PCI hotplug operation happens between them which removes the pci_bus.
So use PCI hotplug safe interface pci_get_domain_bus_and_slot() instead,
which also reduces code complexity.

    struct pci_bus *pci_bus = pci_find_bus(domain, busno);
    struct pci_dev *pci_dev = pci_get_slot(pci_bus, devfn);

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2012-09-12 14:10:33 -06:00
Jia Hongtao
905e75c46d powerpc/fsl-pci: Unify pci/pcie initialization code
We unified the Freescale pci/pcie initialization by changing the fsl_pci
to a platform driver. In previous PCI code architecture the initialization
routine is called at board_setup_arch stage. Now the initialization is done
in probe function which is architectural better. Also It's convenient for
adding PM support for PCI controller in later patch.

Now we registered pci controllers as platform devices. So we combine two
initialization code as one platform driver.

Signed-off-by: Jia Hongtao <B38951@freescale.com>
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Chunhe Lan <Chunhe.Lan@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-09-12 14:57:12 -05:00
Roy Zang
9e67886bec powerpc/pci: Use PCIe IP block revision register instead of compatible
Freescale PCIe IP block revision bigger than rev2.2 will also need
redefine the sequence of inbound windows. So change to use IP block
revision instead of compatible for the judgment.

Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-09-12 14:57:12 -05:00
Roy Zang
6cc1b4e931 powerpc/pci: Add IP revision register define for Freescale PCIe controller
Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-09-12 14:57:11 -05:00
Shaohui Xie
c8c4e2c3d9 powerpc/p5040: fix dtb build warning of p5040ds.dtb
Device node adt7461 was wrongly added in p5040ds.dts, it should be added
into i2c instead of localbus, when build p5040ds.dtb, a warning will dump:

Warning (reg_format): "reg" property in
/localbus@ffe124000/nand@2,0/adt7461@4c has invalid length (4 bytes)
(#address-cells == 1, #size-cells == 1)

This was introduced by:

commit ea6b1ba692bcb5f6e39f409a78cf8b04fdf23baa
Author: Jia Hongtao <B38951@freescale.com>
Date:   Tue Aug 28 10:00:55 2012 +0800

    powerpc: add adt7461 thermal monitor support to applicable boards

    Add thermal monitor support to following boards:
    P1022DS, MPC8536DS, P2041RDB, P3041DS, P4080DS, P5020DS, P5040DS

Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-09-12 14:57:11 -05:00
Wang Dongsheng
3a0f880160 powerpc/8544ds: add partition table for norflash
create partition table for norflash.

Signed-off-by: Wang Dongsheng <Dongsheng.Wang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-09-12 14:57:11 -05:00
Jia Hongtao
17ae4f0aef powerpc: add adt7461 thermal monitor support to applicable boards
Add thermal monitor support to following boards:
P1022DS, MPC8536DS, P2041RDB, P3041DS, P4080DS, P5020DS, P5040DS

Signed-off-by: Jia Hongtao <B38951@freescale.com>
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-09-12 14:57:11 -05:00
Prabhakar Kushwaha
0adbe663bd powerpc/mpc85xx: Add new ext fields to Integrated FLash Controller
Freescale's Integrated Flash controller(IFC) v1.1.0 supports 40 bit
address bus width.
In case more than 32 bit address is used, the EXT registers should be set.

Add support of ext registers.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-09-12 14:57:10 -05:00
Prabhakar Kushwaha
f4dfef75ad powerpc: Update Integrated Flash controller device tree bindings
Freescale's Integrated Flash controller (IFC) may have one or two
interrupts. In case of single interrupt line, it will cover all IFC
interrupts.

Update this information in IFC device tree bindings

Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-09-12 14:57:10 -05:00
Olivia Yin
8778721912 powerpc/e5500: Add Power ISA properties to comply with ePAPR 1.1
power-isa-version and power-isa-* are cpu node general properties defined
in ePAPR.

If the power-isa-version property exists, then for each category from the
Categories section of Book I of the Power ISA version indicated, the
existence of a property named power-isa-[CAT], where [CAT] is the
abbreviated category name with all uppercase letters converted to
lowercase, indicates that the category is supported by the implementation.

This patch update all the e5500 platforms.

Signed-off-by: Liu Yu <yu.liu@freescale.com>
Signed-off-by: Olivia Yin <hong-hua.yin@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-09-12 14:57:10 -05:00
Olivia Yin
2f4acb057c powerpc/e500mc: Add Power ISA properties to comply with ePAPR 1.1
power-isa-version and power-isa-* are cpu node general properties defined
in ePAPR.

If the power-isa-version property exists, then for each category from the
Categories section of Book I of the Power ISA version indicated, the
existence of a property named power-isa-[CAT], where [CAT] is the
abbreviated category name with all uppercase letters converted to
lowercase, indicates that the category is supported by the implementation.

The patch update all the e500mc platforms.

Signed-off-by: Liu Yu <yu.liu@freescale.com>
Signed-off-by: Olivia Yin <hong-hua.yin@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-09-12 14:57:10 -05:00
Olivia Yin
2eb2800643 powerpc/e500v2: Add Power ISA properties to comply with ePAPR 1.1
power-isa-version and power-isa-* are cpu node general properties defined
in ePAPR.

If the power-isa-version property exists, then for each category from the
Categories section of Book I of the Power ISA version indicated, the
existence of a property named power-isa-[CAT], where [CAT] is the
abbreviated category name with all uppercase letters converted to
lowercase, indicates that the category is supported by the implementation.

The patch update all e500v2 platforms.

Signed-off-by: Liu Yu <yu.liu@freescale.com>
Signed-off-by: Olivia Yin <hong-hua.yin@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-09-12 14:57:10 -05:00
Varun Sethi
0a4081641d powerpc/mpic: FSL MPIC error interrupt support.
All SOC device error interrupts are muxed and delivered to the core
as a single MPIC error interrupt. Currently all the device drivers
requiring access to device errors have to register for the MPIC error
interrupt as a shared interrupt.

With this patch we add interrupt demuxing capability in the mpic driver,
allowing device drivers to register for their individual error interrupts.
This is achieved by handling error interrupts in a cascaded fashion.

MPIC error interrupt is handled by the "error_int_handler", which
subsequently demuxes it using the EISR and delivers it to the respective
drivers.

The error interrupt capability is dependent on the MPIC EIMR register,
which was introduced in FSL MPIC version 4.1 (P4080 rev2). So, error
interrupt demuxing capability is dependent on the MPIC version and can
be used for versions >= 4.1.

Signed-off-by: Varun Sethi <Varun.Sethi@freescale.com>
Signed-off-by: Bogdan Hamciuc <bogdan.hamciuc@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-09-12 14:57:10 -05:00
Jia Hongtao
688ba1dbee powerpc/swiotlb: Enable at early stage and disable if not necessary
Remove the dependency on PCI initialization for SWIOTLB initialization.
So that PCI can be initialized at proper time.

SWIOTLB is partly determined by PCI inbound/outbound map which is assigned
in PCI initialization. But swiotlb_init() should be done at the stage of
mem_init() which is much earlier than PCI initialization. So we reserve the
memory for SWIOTLB first and free it if not necessary.

All boards are converted to fit this change.

Signed-off-by: Jia Hongtao <B38951@freescale.com>
Signed-off-by: Li Yang <leoli@freescale.com>
Acked-by: Tony Breeds <tony@bakeyournoodle.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-09-12 14:57:09 -05:00
Varun Sethi
39be5b4a7f powerpc/booke: Add CPU_FTR_EMB_HV check for e5500.
Added CPU_FTR_EMB_HV feature check for e5500.

Signed-off-by: Varun Sethi <Varun.Sethi@freescale.com>
Signed-off-by: Mihai Caraman <mihai.caraman@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-09-12 14:57:09 -05:00
Varun Sethi
0778407f83 powerpc/booke: Separate out restore_e5500/setup_e5500 routines.
For the 64 bit case separate out e5500 cpu_setup and cpu_restore functions.
The cpu_setup function (for the primary core) is passed the cpu_spec
pointer, which is not there in case of the cpu_restore function. Also, in
our case we will have to manipulate the CPU_FTR_EMB_HV flag on the primary
core.

Signed-off-by: Varun Sethi <Varun.Sethi@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-09-12 14:57:09 -05:00
Varun Sethi
2c71b0cc4a powerpc/booke: Merge the 32 bit e5500/e500mc cpu setup code.
Merge the 32 bit cpu setup code for e500mc/e5500 and define the
"cpu_restore" routine (for e5500/e6500) only for the 64 bit case. The
cpu_restore routine is used in the 64 bit case for setting up the secondary
cores.

Signed-off-by: Varun Sethi <Varun.Sethi@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-09-12 14:57:09 -05:00
Varun Sethi
7e0f4872a3 powepc/booke: Separate out E.HV check and ivor setup code.
Move the E.HV check and CPU_FTR_EMB_HV flag manipulation to the cpu setup
code.  Create a separate routine for E.HV ivors setup.

Signed-off-by: Varun Sethi <Varun.Sethi@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-09-12 14:57:08 -05:00
Zhao Chenhui
d0832a7507 powerpc/85xx: add HOTPLUG_CPU support
Add support to disable and re-enable individual cores at runtime on
MPC85xx/QorIQ SMP machines. Currently support e500v1/e500v2 core.

MPC85xx machines use ePAPR spin-table in boot page for CPU kick-off.  This
patch uses the boot page from bootloader to boot core at runtime.  It
supports 32-bit and 36-bit physical address.

Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Jin Qing <b24347@freescale.com>
Signed-off-by: Zhao Chenhui <chenhui.zhao@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-09-12 14:57:08 -05:00
Zhao Chenhui
bf34526374 powerpc/85xx: implement hardware timebase sync
Do hardware timebase sync. Firstly, stop all timebases, and transfer the
timebase value of the boot core to the other core. Finally, start all
timebases.

Only apply to dual-core chips, such as MPC8572, P2020, etc.

Signed-off-by: Zhao Chenhui <chenhui.zhao@freescale.com>
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-09-12 14:57:08 -05:00
Zhao Chenhui
ae5cab4763 powerpc/smp: add generic_set_cpu_up() to set cpu_state as CPU_UP_PREPARE
In the case of cpu hotplug, the cpu_state should be set to CPU_UP_PREPARE
when kicking cpu.  Otherwise, the cpu_state is always CPU_DEAD after
calling generic_set_cpu_dead(), which makes the delay in generic_cpu_die()
not happen.

Signed-off-by: Zhao Chenhui <chenhui.zhao@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-09-12 14:57:08 -05:00
Zhao Chenhui
15f34eb123 powerpc/85xx: Replace epapr spin table macros/defines with a struct
Signed-off-by: Zhao Chenhui <chenhui.zhao@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-09-12 14:57:08 -05:00
Varun Sethi
03bcb7e35f powerpc/mpic: finish supporting timer group B on Freescale chips
Previously, these interrupts would be mapped, but the offset calculation
was broken, and only the first group was initialized.

Signed-off-by: Varun Sethi <Varun.Sethi@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-09-12 14:57:07 -05:00
Timur Tabi
34f84b5b5b powerpc/85xx: introduce support for the Freescale / iVeia P1022RDK
The Freescale / iVeia P1022RDK reference board is a small-factor board
with a Freescale P1022 SOC.  It includes:

1) 512 MB 64-bit DDR3-800 (max) memory
2) 8MB SPI serial flash memory for boot loader
3) Bootable 4-bit SD/MMC port
4) Two 10/100/1000 Ethernet connectors
5) One SATA port
6) Two USB ports
7) One PCIe x4 slot
8) DVI video connector
9) Audio input and output jacks, powered by a Wolfson WM8960 codec.

Unlike the P1022DS, the P1022RDK does not have any localbus devices,
presumably because of the localbus / DIU multiplexing restriction of
the P1022 SOC.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-09-12 14:57:07 -05:00
Timur Tabi
4c30c143f0 powerpc/85xx: Add support for P5040DS board
Add support for the Freescale P5040DS Reference Board ("Superhydra"), which
is similar to the P5020DS.  Features of the P5040 are listed below, but
not all of these features (e.g. DPAA networking) are currently supported.

Four P5040 single-threaded e5500 cores built
    Up to 2.4 GHz with 64-bit ISA support
    Three levels of instruction: user, supervisor, hypervisor
CoreNet platform cache (CPC)
    2.0 MB configures as dual 1 MB blocks hierarchical interconnect fabric
Two 64-bit DDR3/3L SDRAM memory controllers with ECC and interleaving
 support Up to 1600MT/s
    Memory pre-fetch engine
DPAA incorporating acceleration for the following functions
    Packet parsing, classification, and distribution (FMAN)
    Queue management for scheduling, packet sequencing and
	congestion management (QMAN)
    Hardware buffer management for buffer allocation and
	de-allocation (BMAN)
    Cryptography acceleration (SEC 5.0) at up to 40 Gbps SerDes
    20 lanes at up to 5 Gbps
    Supports SGMII, XAUI, PCIe rev1.1/2.0, SATA Ethernet interfaces
    Two 10 Gbps Ethernet MACs
    Ten 1 Gbps Ethernet MACs
High-speed peripheral interfaces
    Two PCI Express 2.0/3.0 controllers
Additional peripheral interfaces
    Two serial ATA (SATA 2.0) controllers
    Two high-speed USB 2.0 controllers with integrated PHY
    Enhanced secure digital host controller (SD/MMC/eMMC)
    Enhanced serial peripheral interface (eSPI)
    Two I2C controllers
    Four UARTs
    Integrated flash controller supporting NAND and NOR flash
DMA
    Dual four channel
Support for hardware virtualization and partitioning enforcement
    Extra privileged level for hypervisor support
QorIQ Trust Architecture 1.1
    Secure boot, secure debug, tamper detection, volatile key storage

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-09-12 14:57:07 -05:00
Kim Phillips
7a4da6f70b powerpc/85xx: add Freescale P5040 SOC and SEC v5.2 device trees
Add device tree (dtsi) files for the Freescale P5040 SOC.  Since this
SOC introduces SEC v5.2, add the dtsi file for that also.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-09-12 14:57:07 -05:00
Timur Tabi
708998c9cf powerpc/fsl-pci: add fsl,qoriq-pcie-v2.4 compatible string
The PCI controller on the Freescale P5040 is v2.4.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-09-12 14:57:07 -05:00
Timur Tabi
b05193c44c powerpc/85xx: remove P1020RDB and P2020RDB CAMP device trees
We only need two examples of CAMP device trees in the upstream kernel.

Co-operative Asymmetric Multi-Processing (CAMP) is a technique where two
or more operating systems (typically multiple copies of the same Linux
kernel) are loaded into memory, and each kernel is given a subset of the
available cores to execute on.  For example, on a four-core system, one
kernel runs on cores 0 and 1, and the other runs on cores 2 and 3.

The devices are also partitioned among the operating systems, and this is
done with customized device trees.  Each kernel gets its own device tree
that has only the devices that it should know about.

Unfortunately, this approach is very hackish.  The kernels are trusted to
only access devices in their respective device trees, and the partitioning
only works for devices that can be handled.  Crafting the device trees is a
tricky process, and getting U-Boot to load and start all kernels is
cumbersome.

But most importantly, each CAMP setup is very application-specific, since
the actual partitioning of resources is done in the DTS by the system
designer.  Therefore, it doesn't make a lot of sense to have a lot of CAMP
device trees, since we only expect them to be used as examples.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-09-12 14:57:06 -05:00
Tang Yuantian
618c9b7464 powerpc/85xx: L2sram - Add compatible string to the device id list
The following platforms are supported:
mpc8544, mpc8572, mpc8536, p1021, p1025, p1024, p1010.

Signed-off-by: Tang Yuantian <Yuantian.Tang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-09-12 14:57:06 -05:00
Bjorn Helgaas
1959ec5f82 Merge branch 'pci/stephen-const' into next
* pci/stephen-const:
  make drivers with pci error handlers const
  scsi: make pci error handlers const
  netdev: make pci_error_handlers const
  PCI: Make pci_error_handlers const
2012-09-12 13:54:10 -06:00
Aristeu Rozanski
19ec2567e0 cgroup: add documentation on extended attributes usage
v2: update cgroups.txt instead of creating a new file

Cc: Tejun Heo <tj@kernel.org>
Cc: Hugh Dickins <hughd@google.com>
Cc: Hillf Danton <dhillf@gmail.com>
Cc: Lennart Poettering <lpoetter@redhat.com>
Acked-by: Li Zefan <lizefan@huawei.com>
Signed-off-by: Aristeu Rozanski <aris@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2012-09-12 11:39:50 -07:00
Theodore Ts'o
93f9052643 ext4: set bg_itable_unused when resizing
Set bg_itable_unused for file systems that have uninit_bg enabled.
This will speed up the first e2fsck run after the file system is
resized.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2012-09-12 14:32:42 -04:00
Richard Zhao
b183c19f98 USB: chipidea: re-order irq handling to avoid unhandled irqs
- let role driver handle irq before ID change check; this gives the
  role driver a chance to handle disconnect;
- disable irq during switch role; no role driver to handle irq in
  the period.

Tested-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Tested-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Richard Zhao <richard.zhao@freescale.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-12 11:20:38 -07:00
Richard Zhao
388ed48723 USB: chipidea: add -DDEBUG if debugging is enabled
This patch turns on debugging output if CONFIG_USB_CHIPIDEA_DEBUG is
enabled.

Signed-off-by: Richard Zhao <richard.zhao@freescale.com>
Tested-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Tested-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-12 11:20:38 -07:00
Richard Zhao
8c4fc03195 USB: chipidea: add vbus detect for udc
Using vbus valid interrupt to detect vbus.

Tested-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Tested-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Richard Zhao <richard.zhao@freescale.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-12 11:20:38 -07:00
Richard Zhao
984f753cf1 USB: chipidea: acknowledge ID change interrupt in irq handler
In order to avoid re-queueing of the role changing work, we need to clear
the ID change interrupt bit right in the irq handler.

Tested-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Tested-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Richard Zhao <richard.zhao@freescale.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-12 11:20:38 -07:00
Richard Zhao
86ad01a907 USB: chipidea: delay 2ms before read ID status at probe time
The ID pin needs 1ms debounce time, even at probe time. We delay 2ms
to be on the safe side.

Tested-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Tested-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Richard Zhao <richard.zhao@freescale.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-12 11:20:38 -07:00
Richard Zhao
b4dbb258b6 USB: chipidea: imx: add pinctrl support
Some controllers may not need to setup pinctrl, so we don't fail the
probe if pinctrl get/select failed.

Tested-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Tested-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Richard Zhao <richard.zhao@freescale.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-12 11:20:38 -07:00
Richard Zhao
d142d6be23 USB: chipidea: add imx usbmisc support
i.MX usb controllers share non-core registers, which may include
SoC specific controls. We turn it into a usbmisc device and usbmisc
driver set operations needed by ci13xxx_imx driver.

For example, Sabrelite board has bad over-current design, we can
usbmisc to disable over-current detection.

Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Richard Zhao <richard.zhao@freescale.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-12 11:20:38 -07:00
Larry Finger
7a5f799bec rtlwifi: Remove EXPERIMENTAL as pre-requisite for the drivers
All of the rtlwifi-family of drivers have been in the kernel since 3.1
or earlier. The dependence on EXPERIMENTAL can be removed.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-12 14:19:16 -04:00
Hante Meuleman
e756af5b30 brcmfmac: add e-scan support.
This patch adds e-scan support (currently i-scan is in use). E-scan
is a more powerful and memory efficient method for scanning. E-scan
will be the default scan method and eventually, i-scan support will
be removed. The scan methods do not make any difference to the end-user.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-12 14:19:16 -04:00