Added SWP_BLKDEV flag to distinguish block and regular file backed
swap devices. We could also check if a swap is entire block device,
rather than a file, by:
S_ISBLK(swap_info_struct->swap_file->f_mapping->host->i_mode)
but, I think, simply checking this flag is more convenient.
Signed-off-by: Nitin Gupta <ngupta@vflare.org>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: Nigel Cunningham <nigel@tuxonice.net>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Reviewed-by: Minchan Kim <minchan.kim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Devtmpfs lets the kernel create a tmpfs instance called devtmpfs
very early at kernel initialization, before any driver-core device
is registered. Every device with a major/minor will provide a
device node in devtmpfs.
Devtmpfs can be changed and altered by userspace at any time,
and in any way needed - just like today's udev-mounted tmpfs.
Unmodified udev versions will run just fine on top of it, and will
recognize an already existing kernel-created device node and use it.
The default node permissions are root:root 0600. Proper permissions
and user/group ownership, meaningful symlinks, all other policy still
needs to be applied by userspace.
If a node is created by devtmps, devtmpfs will remove the device node
when the device goes away. If the device node was created by
userspace, or the devtmpfs created node was replaced by userspace, it
will no longer be removed by devtmpfs.
If it is requested to auto-mount it, it makes init=/bin/sh work
without any further userspace support. /dev will be fully populated
and dynamic, and always reflect the current device state of the kernel.
With the commonly used dynamic device numbers, it solves the problem
where static devices nodes may point to the wrong devices.
It is intended to make the initial bootup logic simpler and more robust,
by de-coupling the creation of the inital environment, to reliably run
userspace processes, from a complex userspace bootstrap logic to provide
a working /dev.
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Jan Blunck <jblunck@suse.de>
Tested-By: Harald Hoyer <harald@redhat.com>
Tested-By: Scott James Remnant <scott@ubuntu.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
1) remove mainline (net/wireless/usb versions) from config since they don't do anything but associate
2) port drivers/staging/ ralink drivers from Linus' tree to here
includes update to hexdump.c and kernel.h for hex_to_bin (replaces nibble, ABI change)
includes update to ralink driver source to modify usb_alloc/free_coherent to old usb_buffer_alloc/free
add it to the defconfig
You will need to grab the "Firmware RT28XX/RT30XX USB series" firmware (v 22 or above) from
http://www.ralink.com.tw/support.php?s=2
Unzip the zip file, inside is a license and rt2870.bin (an 8192 byte file). Copy this to
/lib/firmware/rt3070.bin (note the name change!) and the driver should load and work. Tested
with multiple pings, traceroutes, file copies (SCP and CIFS), YouTube..
Added basic EPDC driver, including support for PXP conversions (rotation,
auto-waveform selection, CSC). Self-clock gating also supported.
Signed-off-by: Danny Nold <dannynold@freescale.com>
Use Common DMA-Engine framework to implement ePXP driver
Use a dma client driver to access ePxP staff.
Signed-off-by: Danny Nold <dannynold@freescale.com>
Signed-off-by: Robby Cai <R63905@freescale.com>
support imx53 evk board OTG and Host1 vbus active
and inactive to low the power consume, fix fsl_otg.c
build failt, add vbus power control function pointer
in struct fsl_usb2_platform_data.
Signed-off-by: Hu hui <b29976@freescale.com>
The support for YUV422 different combinations are added
The YUV422 is supported for DI1 interface for 720P frames with 16bits bus only:
di1_primary video=mxcdi1fb:YUYV16,720P60
To define required YUV422 format use one of:
YUYV16
YVYU16
UYVY16
VYUY16
Signed-off-by: Mark Gutman <r58412@freescale.com>
This can be used for AHCI-compatible interfaces implemented inside
System-On-Chip solutions, or AHCI devices connected via localbus.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Hopefully results in fewer on-the-wire FIS's and no breakage. We'll see!
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
commit 541cd3ee00a4fe975b22fac6a3bc846bacef37f7 ("phylib: Fix deadlock
on resume") caused TI DaVinci EMAC ethernet driver to oops upon resume:
PM: resume of devices complete after 237.098 msecs
Restarting tasks ... done.
kernel BUG at kernel/workqueue.c:354!
Unable to handle kernel NULL pointer dereference at virtual address 00000000
[...]
Backtrace:
[<c002c598>] (__bug+0x0/0x2c) from [<c0052a54>] (queue_delayed_work_on+0x74/0xf8)
[<c00529e0>] (queue_delayed_work_on+0x0/0xf8) from [<c0052b30>] (queue_delayed_work+0x2c/0x30)
The oops pops up because TI DaVinci EMAC driver detaches PHY on
suspend and attaches it back on resume. Attaching makes phylib call
phy_start_machine() that initializes a workqueue. On the other hand,
PHY's resume routine will call phy_start_machine() again, and that
will cause the oops since we just destroyed the already scheduled
workqueue.
This patch fixes the issue by moving workqueue initialization to
phy_device_create().
p.s. We don't see this oops with ucc_geth and gianfar drivers because
they perform a fine-grained suspend, i.e. they just stop the PHYs
without detaching.
Reported-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Tested-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Since hibernation assumes power loss, we should fully reinitialize
PHYs (including platform fixups), as if PHYs were just attached.
This patch factors phy_init_hw() out of phy_attach_direct(), then
converts mdio_bus to dev_pm_ops and adds an appropriate restore()
callback.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Deleted the old drivers.
Broke the driver into separate files, for readability and to isolate
hardware dependencies.
Fixed bad block problems in the boot area for the i.MX23.
At this writing, UBI can't handle MTDs larger than 2GiB. If the
general use partition is larger than 2GiB, the driver will create
sub-partitions, none of which are larger than 2GiB.
Updated the default configs for the i.MX23 and i.MX28.
Other, miscellaneous changes.
Signed-off-by: Patrick Turley <patrick.turley@freescale.com>
This driver unifies the i.MX23 and i.MX28 NAND Flash drivers into a single
driver that supports both SoC's.
Signed-off-by: Patrick Turley <patrick.turley@freescale.com>
To preview with V4L2 overlay and capture at the same time may fail.
This patch implements workaround for this issue by enabling CSI after
PRP channels are setup.
Signed-off-by: Liu Ying <b17645@freescale.com>
Add iram allocation functions using GENERIC_ALLOCATOR. The
allocation size is 4KB multiples to guarantee alignment.
Signed-off-by: Rob Herring <r.herring@freescale.com>
blank/unblank fb during v4l2 playback, unblank will cause current buffer
of display channel to be 1. This patch make the sequence of select
display buffer correct.
Signed-off-by: Jason Chen <b02280@freescale.com>
If there is no usb devices connectted or all connectted usb
devices are in suspend state, usb host can suspend its whole bus,
then put the PHY into low power mode and close all usb clocks.
(The patch is splitted 2 patches, this is common code part.)
Signed-off-by: Li Jun <r65092@freescale.com>
Support DP gamma by setting piecewise linear approximation,
application need set coefficient const[k] and slope[k]. The algorithm to
calculate these coefficient pls refer to unit test.
Signed-off-by: Jason Chen <b02280@freescale.com>
Added the device identification and timing database. Adjusted the GPMI
NAND Flash driver to use this information.
Signed-off-by: Patrick Turley <patrick.turley@freescale.com>
Follow the approach suggested by Russell King and implemented by him in
the clkdev API and allow consumer device supply mapings to be set up
using the dev_name() for the consumer instead of the struct device.
In order to avoid making existing machines instabuggy and creating merge
issues the use of struct device is still supported for the time being.
This resolves problems working with buses such as I2C which make the
struct device available late providing that the final device name is
known, which is the case for most embedded systems with fixed setups.
Consumers must still use the struct device when calling regulator_get().
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
-Added kernel error message to handle hang due to SCC HW failure.
-Eliminated unwanted sleeps.
-Kernel error message to handle the case when SCC key fuses are not blown.
Signed-off-by: Raj Rajasekaran <b10872@freescale.com>
MX233: Restructure the STMP378xxx USB Host and Gadget device structures
to be similar to MXC structures. Enable fsl_otg_arc driver to work on
MX233 platform. Remove FSL_USB2_DONT_REMAP requirement.
Signed-off-by: Dinh Nguyen <Dinh.Nguyen@freescale.com>
Conflicts:
arch/arm/mach-stmp3xxx/Kconfig
arch/arm/mach-stmp3xxx/Makefile
arch/arm/mach-stmp3xxx/devices.c
arch/arm/mach-stmp3xxx/include/mach/stmp3xxx.h
arch/arm/mach-stmp3xxx/stmp378x_devb.c
USB will enter low power mode if no vbus power supply.
Only finished this feature in Mx37.
1. When enter low power mode, driver will close usb related clocks
as possible as could.
set usb IP to stop.
Set PHY to low power suspend by setting PHCD bit of portsc.
2. This patch doesn't support low power mode in OTG mode yet.
Signed-off-by: Albert Chen <r65187@freescale.com>
