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Commit Graph

263814 Commits

Author SHA1 Message Date
Archit Taneja
18b7d09908 OMAP: DSS2: DSI: Send zero length packet in dsi_vc_send_null()
dsi_vc_send_null() currently sends a long packet with data type
MIPI_DSI_NULL_PACKET and packet length 4. Modify it to send a zero
length long packet. This leads to sending only the long packet header
and no payload packets and hence the transfer completes faster.

The function can be modified later if there is a need to send null
packets of a non-zero length.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-30 16:16:29 +03:00
Archit Taneja
a3b3cc2b88 OMAP: DSS2: Create an enum for DSI pixel formats
Currently, DSI pixel info is only represented by the pixel size in bits using
the pixel_size parameter in omap_dss_device struct's ctrl member.

This is not sufficient information for DSI video mode usage, as two of the
supported formats(RGB666 loosely packed, and RGB888) have the same pixel
container size, but different data_type values for the video mode packet header.

Create enum "omap_dss_dsi_pixel_format" which describes the pixel data format
the panel is configured for. Create helper function dsi_get_pixel_size() which
returns the pixel size of the given pixel format.

Modify functions omapdss_default_get_recommended_bpp() and dss_use_replication()
to use dsi_get_pixel_size().

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-30 16:16:29 +03:00
Archit Taneja
569969d601 OMAP: DSS2: Clean up stallmode and io pad mode selection
Split the function dispc_set_parallel_interface_mode() into 2 separate
functions called dispc_mgr_set_io_pad_mode() and dispc_mgr_enable_stallmode().
The current function tries to set 2 different modes(io pad mode and stall mode)
based on a parameter omap_parallel_interface_mode which loosely corresponds to
the panel interface type.

This isn't correct because a) these 2 modes are independent to some extent,
b) we are currently configuring gpout0/gpout1 for DSI panels which is
unnecessary, c) a DSI Video mode panel won't get configured correctly.

Splitting the functions allows the interface driver to set these modes
independently and hence allow more flexibility.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-30 16:16:28 +03:00
Archit Taneja
b3b89c05cb OMAP: DSS2: DSI: Introduce generic read functions
Introduce read functions which use generic Processor-to-Peripheral
transaction types. These are needed by some devices which may not support
corresponding DCS commands.

Add function dsi_vc_generic_send_read_request() which can send
a short packet with 0, 1 or 2 bytes of request data and the corresponding
generic data type.

Rename function dsi_vc_dcs_read_rx_fifo() to dsi_vc_read_rx_fifo() and modify
it to take the enum "dss_dsi_content_type" as an argument to use either DCS
or GENERIC Peripheral-to-Processor transaction types while parsing data read
from the device.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-30 16:16:28 +03:00
Archit Taneja
b850975cd8 OMAP: DSS2: DSI: Split dsi_vc_dcs_read() into 2 functions
Split dsi_vc_dcs_read() into the functions:
- dsi_vc_dcs_send_read_request(): This is responsible for sending the short
packet command with the read request.
- dsi_vc_dcs_read_rx_fifo(): This parses the DSI RX fifo of the given virtual
channel, identifies the type of data received, and fills a buffer with the data
provided by the panel.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-30 16:16:27 +03:00
Archit Taneja
5c716a04ed OMAP: DSS2: DSI: Remove functions dsi_vc_dcs_read_1() and dsi_vc_dcs_read_2()
Remove functions dsi_vc_dcs_read_1() and dsi_vc_dcs_read_2(), these are used
when the panel is expected to return 1 and 2 bytes respecitvely. This was manily
used for debugging purposes. These functions should be implemented in the panel
driver if needed.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-30 16:16:27 +03:00
Archit Taneja
6ff8aa3182 OMAP: DSS2: DSI: Introduce generic write functions
Intoduce enum "dss_dsi_content_type" to differentiate between DCS and generic
content types.

Introduce short and long packet write functions which use generic
Processor-to-Peripheral transaction types. These are needed by some devices
which may not support corresponding DCS commands. Create common write functions
which allow code reuse between DCS and generic write functions.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-30 16:16:26 +03:00
Archit Taneja
7e951ee995 OMAP: DSS2: Create enum for DSI operation modes
Create an enum for DSI operation modes, use this to set the capabilities of the
device in dsi_init_display().

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-30 16:16:26 +03:00
Archit Taneja
d604914484 OMAP: DSS2: DSI: Represent L4 and VP as sources of VC instead of modes
The enum type dsi_vc_mode is a bit misleading as L4 slave port and video port
are sources to VC rather than the mode of operation. Rename then enum type and
its members. Merge dsi_vc_config_vp() and dsi_vc_config_l4() into a single
function called dsi_vc_config_source() which takes dsi_vc_source enum as an
extra argument.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-30 16:16:26 +03:00
Archit Taneja
7a7c48f9ab OMAP: DSS2: Use MIPI DSI enums from include/video/mipi_display.h
MIPI DSI Transaction types and DCS commands are currently defined as
macros in dsi.c and panel-taal.c, remove these and replace them with
enum members defined in include/video/mipi_display.h.

Signed-off-by: Archit Taneja <archit@ti.com>
[tomi.valkeinen@ti.com: reformatted the commit message]
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-30 16:16:25 +03:00
Thomas Weber
cc11aaf867 OMAP: Devkit8000: Change lcd driver to AT070TN83
Change lcd driver from generic to AT070TN83.

Signed-off-by: Thomas Weber <weber@corscience.de>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-30 16:16:25 +03:00
Thomas Weber
1e497c4f0a OMAP: DSS2: Support for Innolux AT070TN83
Add support for Innolux AT070TN83, a 7 inch LCD
with RGB-Interface and touch panel to panel-generic-dpi.

Tested with Devkit8000.

Signed-off-by: Thomas Weber <weber@corscience.de>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-30 16:16:24 +03:00
Tomi Valkeinen
cd295aebf1 OMAP: DSS2: reorganize functions in dss.h
Group dispc's overlay and manager related functions.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-30 16:16:24 +03:00
Tomi Valkeinen
26d9dd0dbe OMAP: DSS2: DISPC: rename manager related funcs
Rename dispc's manager related functions as follows:

- Remove prepending underscores, which were originally used to inform
  that the clocks needs to be enabled. This meaning is no longer valid.
- Prepend the functions with dispc_mgr_*
- Remove "channel" from the name, e.g. dispc_enable_channel ->
  dispc_mgr_enable

The idea is to group manager related functions so that it can be deduced
from the function name that it writes to manager spesific registers.

All dispc_mgr_* functions have enum omap_channel as the first parameter.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-30 16:16:23 +03:00
Tomi Valkeinen
f0e5caab97 OMAP: DSS2: DISPC: rename overlay related funcs
Rename dispc's overlay related functions as follows:

- Remove prepending underscores, which were originally used to inform
  that the clocks needs to be enabled. This meaning is no longer valid.
- Prepend the functions with dispc_ovl_*
- Remove "plane" from the name, e.g. dispc_set_plane_ba0 ->
  dispc_ovl_set_ba0

The idea is to group overlay related functions so that it can be deduced
from the function name that it writes to overlay spesific registers.

All dispc_ovl_* functions have enum omap_plane as the first parameter.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-30 16:16:23 +03:00
Tomi Valkeinen
3375483e91 OMAP: DSS2: DISPC: remove non-existing func prototypes
The functions do not exist, so remove the prototypes.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-30 16:16:22 +03:00
Tomi Valkeinen
7fbf1bb02d OMAP: OMAPFB: string parsing cleanups
Use strtobool instead of kstrtoint when parsing bool from sysfs.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-30 16:16:22 +03:00
Tomi Valkeinen
e3a26aecc0 OMAP: DSS2: string parsing cleanups
Use strtobool and kstrto* functions when parsing sysfs inputs.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-30 16:16:21 +03:00
Tomi Valkeinen
f6dc815098 OMAP: DSS2: Add GLOBAL_ALPHA & PRE_MULT_ALPHA to ovl caps
Add OMAP_DSS_OVL_CAP_GLOBAL_ALPHA and OMAP_DSS_OVL_CAP_PRE_MULT_ALPHA to
overlay capabilities. Use these instead of FEAT_GLOBAL_ALPHA,
FEAT_GLOBAL_ALPHA_VID1 and FEAT_PRE_MULT_ALPHA in code.

Remove FEAT_GLOBAL_ALPHA_VID1 and FEAT_PRE_MULT_ALPHA which are no
longer used. FEAT_GLOBAL_ALPHA is still used to decide if the HW has
global alpha register.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Archit Taneja <archit@ti.com>
2011-09-30 16:16:21 +03:00
Tomi Valkeinen
67019db864 OMAP: DSS2: Add overlay caps to DSS features
Add support to define overlay capabilities into dss_features. The
features are set to overlay->caps at initialization time.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Archit Taneja <archit@ti.com>
2011-09-30 16:16:21 +03:00
Tomi Valkeinen
fe3cc9d6cd OMAP: DSS2: DISPC: use lookup tables for bit shifts
Use lookup tables instead of switch/if in some DISPC functions to make
the code cleaner.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Archit Taneja <archit@ti.com>
2011-09-30 16:16:20 +03:00
Tomi Valkeinen
4a9e78abb7 OMAP: DSS2: Remove support for non-DISPC overlays
Remove support for non-DISPC overlays and overlay managers.

The support to possibly have non-DISPC overlays and managers was made to
make it possible to use CPU and/or sDMA to update RFBI or DSI command
mode displays. It is ok to remove the support, because:

- No one has used the feature.
- Display update without DISPC is very slow, so it is debatable if the
  update would even be usable.
- Removal cleans up code.
- If such a feature is needed later, it is better implemented outside
  omapdss driver.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Archit Taneja <archit@ti.com>
2011-09-30 16:16:20 +03:00
Tomi Valkeinen
46fc133f95 OMAP: DSS2: Remove "EXPERIMENTAL" from Kconfig
DSS driver has not been "experimental" for many years now, so perhaps
it's time to remove the text from Kconfig titles.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-30 16:16:19 +03:00
Tomi Valkeinen
8fa8031c54 OMAP: DSS2: Handle manager change in apply
Currently when changing the manager of an overlay, set_manager() directly
calls dispc to set the overlay's destination.

Change this to be more in line with other overlay configurations, and
this will also remove the need to have dispc clocks enabled when calling
set_manager().

A new field is added to overlay struct, "manager_changed". This is
similar to "display_changed" field in manager struct, and is used to
inform apply that the manager has changed and thus write to the
registers is needed.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-30 16:16:19 +03:00
Tomi Valkeinen
5e7850917f OMAP: DSS2: fix clock sources on error and uninit
DPI and DSI were not cleaning up the clock source in error or uninit
cases. Set the clock source back to PRCM.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-30 16:16:18 +03:00
Tomi Valkeinen
bab59b4417 OMAP: OMAPFB: make omapfb start even when a display is missing a driver
Currently omapfb wants that all the display devices have a driver,
otherwise omapfb refuses to start. There's no real requirement to act
like that, and this patch will make omapfb give a warning and skip that
device.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-30 16:16:18 +03:00
Tomi Valkeinen
dc35835c6f OMAP: DSS2: Implement dsi_mux_pads for OMAP4
Implement dsi_mux_pads for OMAP4. On enable the function enables the DSI
pins and disables pull down. On disable the function disables the pins
and enables pull down.

It is unclear from the TRM whether the pull down is active if the pins
are disabled, so this implementation may leave the pins floating when
the DSI device is disabled.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-30 16:16:17 +03:00
Tomi Valkeinen
5bc416cba1 OMAP: DSS2: DSI: Improve dsi_mux_pads parameters
dsi_mux_pads() needs to know about the DSI HW module and the DSI lanes
used. Split the function into two, enable and disable, which take
necessary arguments, and add empty implementations for both.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-30 16:16:17 +03:00
Tomi Valkeinen
4e6a0ab0f9 OMAP4: TWL: Add common omapdss supplies
OMAP DSS normally gets power from VCXIO on OMAP4. Add configuration for
this into twl-common.c

Mark VCXIO as always_on, as VCXIO is used by multiple components,
including the MPU, and turning it off when DSS doesn't need it would
lead the device to halt.

Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-30 16:16:12 +03:00
Tomi Valkeinen
7c68dd96d5 OMAP: DSS2: Change DSI device naming
Currently, there are 2 differently named platform devices generated for
the 2 DSS DSI modules. In order to use the same driver, the dsi devices
should be 2 instances of the same platform device.

Change the platform device names from "omapdss_dsi1" and "omapdss_dsi2"
to omapdss_dsi", and set the device indices to 0 and 1.

Signed-off-by: Archit Taneja <archit@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-30 16:16:05 +03:00
Tomi Valkeinen
f36465822d OMAP: DSS2: remove unneeded fck enable/disables
Now that the HWMOD fmwk handles the fcks of DSS modules properly, the
DSS driver no longer needs to explicitely enable/disable the fck.

This patch removes the enables/disables of fck from dispc, dsi and dss.
The clk_get(fck) is still needed there, as the modules need to know the
frequency of the clock.

For hdmi and venc this patch also removes the clk_get(fck), as they
don't need the clock at all.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-20 11:21:31 +03:00
Tomi Valkeinen
3393b85340 Revert "OMAP: DSS2: HDMI: fix hdmi clock name"
This reverts commit df5d3ed23c.

The HDMI clock name has been fixed in HWMOD data.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-20 11:21:31 +03:00
Tomi Valkeinen
bfe4f8d32d Revert "HACK: OMAP: DSS2: clk hack for OMAP2/3"
This reverts commit 9ede365aa6.

The hack is no longer needed, as the HWMOD data has been fixed.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-20 11:21:31 +03:00
Archit Taneja
e13a138bc6 OMAP: DSS2: Use a macro to declare size of the fifo_size array in dispc.c
The array size of fifo_size array in the global dispc struct is currently
hardcoded to 3. Replace this with the MAX_DSS_OVERLAYS macro in dss_features.h,
use dss_features function to get the number of overlays instead of the
ARRAY_SIZE macro in dispc_read_plane_fifo_sizes().

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-14 18:08:24 +03:00
Archit Taneja
ac01c29e52 OMAP: DSS2: DISPC: Shorten _dispc_set_color_conv_coef()
Iterate over overlay id's to shorten _dispc_set_color_conv_coef()

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-14 18:08:24 +03:00
Archit Taneja
c6104b8e24 OMAP: DSS2: DISPC: dispc_save_context() and dispc_restore_context() cleanup
Iterate over manager and overlay id's to shorten dispc_save_context() and
dispc_restore_context().

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-14 18:08:24 +03:00
Archit Taneja
4dd2da15fc OMAP: DSS2: DISPC: Shorten dispc_dump_regs()
Iterate over manager and overlay id's to shorten dispc_dump_regs().

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-14 18:08:24 +03:00
Archit Taneja
5010be8012 OMAP: DSS2: DISPC: Prepare dispc_dump_regs() for shortening
Prepare dispc_dump_regs() to iterate over manager and overlay id's. Doing this
requires modifications of the macro "DUMPREG" which currently needs us to specify
the manager/overlay name to get the correct result. For example, in order to
print the register DISPC_TIMING_H(OMAP_DSS_CHANNEL_LCD), we can't iterate over
a varaible i and get the desired result through DUMPREG(DISPC_TIMING_H(i)).

Split the registers into 3 sections, the first with no arguments(common
registers), the second with one argument(manager/overlay id), and the third with
two arguments(overlay id and coefficient index), redefine DUMPREG macros for
each of these.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-14 18:08:24 +03:00
Andy Doan
c5f18d7bab OMAPFB: make debug message more useful
Make the debug message useful by printing the name of the device
that no associated driver could be found for.

Signed-off-by: Andy Doan <andy.doan@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-14 18:08:24 +03:00
Dima Zavin
13eae1f982 OMAP: DSS: dispc: enable/disable clocks in error handler
There's no guarantee that the error handler worker thread
will run while the dispc clocks are on. Explicitly enable/disable
them.

Signed-off-by: Dima Zavin <dima@android.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-14 18:08:24 +03:00
Daniel Morsing
0f770b4765 OMAP: DSS2: Don't allow moving managers away from enabled displays
If a manager is moved while attached to an enabled display, the DSS
system will be left in an inconsistent state. This will eventually cause
a kernel oops when the enabled display is disabled.

Fix this by not allowing the user to move a manager away from an enabled
display.

Signed-off-by: Daniel Morsing <daniel.morsing@gmail.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-14 18:08:23 +03:00
Tomi Valkeinen
05e1d60607 OMAP: DSS2: check for manager when enabling display
None of the DSS interface drivers check if an overlay manager is
connected to the display when the display is being enabled. This leads
to null pointer crash if the display has no manager.

This patch checks for the manager and returns an error if it is null.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-14 18:08:23 +03:00
Tomi Valkeinen
79e4424fbe OMAP: DSS2: PicoDLP: fix error handling in power_on
Fix two problems in PicoDLP driver's error handling on
picodlp_panel_power_on:

- If omapdss_dpi_display_enable() failed, the its error value was not
  returned
- If picodlp_i2c_init() failed, dssdev->state was erroneously set to
  OMAP_DSS_DISPLAY_ACTIVE

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-14 18:08:23 +03:00
Mayuresh Janorkar
24305db864 OMAP: DSS2: Add picodlp panel driver
PicoDLP is a micro projector from TI.

DLP used in OMAP4 is dpp2600 (DLP Pico Projector) The DLP requires
commands to be sent over i2c for configurations. To know more about
dpp2600 commands please visit:
https://focus.ti.com/myti/docs/extranet.tsp?sectionId=403

The picodlp module consists of a dss driver and an i2c_client.

To know more please visit:
http://www.omappedia.org/wiki/PicoDLP_projector_guide

Based on original design from Mythri P K <mythripk@ti.com>

Signed-off-by: Mayuresh Janorkar <mayur@ti.com>
Signed-off-by: Mythri P K <mythripk@ti.com>
[tomi.valkeinen@ti.com: squashed commits]
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-14 18:08:23 +03:00
Linus Torvalds
b6fd41e29d Linux 3.1-rc6 2011-09-12 14:02:02 -07:00
Linus Torvalds
8cb3ed17cb Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm: Remove duplicate "return" statement
  drm/nv04/crtc: Bail out if FB is not bound to crtc
  drm/nouveau: fix nv04_sgdma_bind on non-"4kB pages" archs
  drm/nouveau: properly handle allocation failure in nouveau_sgdma_populate
  drm/nouveau: fix oops on pre-semaphore hardware
  drm/nv50/crtc: Bail out if FB is not bound to crtc
  drm/radeon/kms: fix DP detect and EDID fetch for DP bridges
2011-09-12 13:49:07 -07:00
Linus Torvalds
4c7527821c Merge branch 'fixes' of git://git.linaro.org/people/arnd/arm-soc
* 'fixes' of git://git.linaro.org/people/arnd/arm-soc:
  ARM: CSR: add missing sentinels to of_device_id tables
  ARM: cns3xxx: Fix newly introduced warnings in the PCIe code
  ARM: cns3xxx: Fix compile error caused by hardware.h removed
  ARM: davinci: fix cache flush build error
  ARM: davinci: correct MDSTAT_STATE_MASK
  ARM: davinci: da850 EVM: read mac address from SPI flash
  OMAP: omap_device: fix !CONFIG_SUSPEND case in _noirq handlers
  OMAP2430: hwmod: musb: add missing terminator to omap2430_usbhsotg_addrs[]
  OMAP3: clock: indicate that gpt12_fck and wdt1_fck are in the WKUP clockdomain
  OMAP4: clock: fix compile warning
  OMAP4: clock: re-enable previous clockdomain enable/disable sequence
  OMAP: clockdomain: Wait for powerdomain to be ON when using clockdomain force wakeup
  OMAP: powerdomains: Make all powerdomain target states as ON at init
2011-09-12 11:51:35 -07:00
Mathieu Desnoyers
14d01ff534 ioctl: register LTTng ioctl
The LTTng 2.0 kernel tracer (stand-alone module package, available at
http://lttng.org) uses the 0xF6 ioctl range for tracer control and
transport operations.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-09-12 11:50:56 -07:00
Linus Torvalds
0b001b2eda Merge branch 'for-linus' of git://github.com/chrismason/linux
* 'for-linus' of git://github.com/chrismason/linux:
  Btrfs: add dummy extent if dst offset excceeds file end in
  Btrfs: calc file extent num_bytes correctly in file clone
  btrfs: xattr: fix attribute removal
  Btrfs: fix wrong nbytes information of the inode
  Btrfs: fix the file extent gap when doing direct IO
  Btrfs: fix unclosed transaction handle in btrfs_cont_expand
  Btrfs: fix misuse of trans block rsv
  Btrfs: reset to appropriate block rsv after orphan operations
  Btrfs: skip locking if searching the commit root in csum lookup
  btrfs: fix warning in iput for bad-inode
  Btrfs: fix an oops when deleting snapshots
2011-09-12 11:47:49 -07:00
Miklos Szeredi
5dfcc87fd7 fuse: fix memory leak
kmemleak is reporting that 32 bytes are being leaked by FUSE:

  unreferenced object 0xe373b270 (size 32):
  comm "fusermount", pid 1207, jiffies 4294707026 (age 2675.187s)
  hex dump (first 32 bytes):
    01 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<b05517d7>] kmemleak_alloc+0x27/0x50
    [<b0196435>] kmem_cache_alloc+0xc5/0x180
    [<b02455be>] fuse_alloc_forget+0x1e/0x20
    [<b0245670>] fuse_alloc_inode+0xb0/0xd0
    [<b01b1a8c>] alloc_inode+0x1c/0x80
    [<b01b290f>] iget5_locked+0x8f/0x1a0
    [<b0246022>] fuse_iget+0x72/0x1a0
    [<b02461da>] fuse_get_root_inode+0x8a/0x90
    [<b02465cf>] fuse_fill_super+0x3ef/0x590
    [<b019e56f>] mount_nodev+0x3f/0x90
    [<b0244e95>] fuse_mount+0x15/0x20
    [<b019d1bc>] mount_fs+0x1c/0xc0
    [<b01b5811>] vfs_kern_mount+0x41/0x90
    [<b01b5af9>] do_kern_mount+0x39/0xd0
    [<b01b7585>] do_mount+0x2e5/0x660
    [<b01b7966>] sys_mount+0x66/0xa0

This leak report is consistent and happens once per boot on
3.1.0-rc5-dirty.

This happens if a FORGET request is queued after the fuse device was
released.

Reported-by: Sitsofe Wheeler <sitsofe@yahoo.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Tested-by: Sitsofe Wheeler <sitsofe@yahoo.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-09-12 11:47:10 -07:00