Commit Graph

966 Commits

Author SHA1 Message Date
Linus Torvalds 537d847876 Merge branch 'for-linus' of git://gitorious.org/linux-omap-dss2/linux
* 'for-linus' of git://gitorious.org/linux-omap-dss2/linux: (64 commits)
  OMAP: DSS2: OMAPFB: add support for FBIO_WAITFORVSYNC
  OMAP: DSS2: Replace strncmp() with sysfs_streq() in overlay_manager_store()
  OMAP: DSS2: Fix error path in omap_dsi_update()
  OMAP: DSS2: TDO35S: fix video signaling
  OMAP: DSS2: OMAPFB: Fix invalid bpp for PAL and NTSC modes
  OMAP: DSS2: OMAPFB: Fix probe error path
  OMAP3EVM: Replace vdvi regulator supply with vdds_dsi
  OMAP: DSS2: Remove extra return statement
  OMAP: DSS2: adjust YUV overlay width to be even
  OMAP: DSS2: OMAPFB: Fix sysfs mirror input check
  OMAP: DSS2: OMAPFB: Remove redundant color register range check
  OMAP: DSS2: OMAPFB: Remove redundant rotate range check
  OMAP: DSS2: OMAPFB: Check fb2display() return value
  OMAP: DSS2: Taal: Optimize enable_te, rotate, mirror when value unchanged
  OMAP: DSS2: DSI: detect unsupported update requests
  OMAP: DSS2: DSI: increase FIFO low threshold
  OMAP: DSS2: DSI: Add error IRQ mask for DSI complexIO
  OMAP: DSS2: DSI: Remove BTA after set_max_rx_packet_size
  OMAP: DSS2: change manual update scaling setup
  OMAP: DSS2: DSI: use BTA to end the frame transfer
  ...
2010-08-08 10:02:59 -07:00
Linus Torvalds d71048e22f Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6
* 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (143 commits)
  omap: mailbox: reorganize headers
  omap: mailbox: standarize on 'omap-mailbox'
  omap: mailbox: only compile for configured archs
  omap: mailbox: simplify omap_mbox_register()
  omap: mailbox: reorganize registering
  omap: mailbox: add IRQ names
  omap: mailbox: remove unecessary fields
  omap: mailbox: don't export unecessary symbols
  omap: mailbox: update omap1 probing
  omap: mailbox: use correct config for omap1
  omap: mailbox: 2420 should be detected at run-time
  omap: mailbox: reorganize structures
  omap: mailbox: trivial cleanups
  omap mailbox: Set a device in logical mbox instance for traceability
  omap: mailbox: convert block api to kfifo
  omap: mailbox: remove (un)likely macros from cold paths
  omap: mailbox cleanup: split MODULE_AUTHOR line
  omap: mailbox: convert rwlocks to spinlock
  Mailbox: disable mailbox interrupt when request queue
  Mailbox: new mutext lock for h/w mailbox configuration
  ...
2010-08-08 10:01:46 -07:00
Linus Torvalds faa38b5e0e Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (214 commits)
  ALSA: hda - Add pin-fix for HP dc5750
  ALSA: als4000: Fix potentially invalid DMA mode setup
  ALSA: als4000: enable burst mode
  ALSA: hda - Fix initial capsrc selection in patch_alc269()
  ASoC: TWL4030: Capture route runtime DAPM ordering fix
  ALSA: hda - Add PC-beep whitelist for an Intel board
  ALSA: hda - More relax for pending period handling
  ALSA: hda - Define AC_FMT_* constants
  ALSA: hda - Fix beep frequency on IDT 92HD73xx and 92HD71Bxx codecs
  ALSA: hda - Add support for HDMI HBR passthrough
  ALSA: hda - Set Stream Type in Stream Format according to AES0
  ALSA: hda - Fix Thinkpad X300 so SPDIF is not exposed
  ALSA: hda - FIX to not expose SPDIF on Thinkpad X301, since it does not have the ability to use SPDIF
  ASoC: wm9081: fix resource reclaim in wm9081_register error path
  ASoC: wm8978: fix a memory leak if a wm8978_register fail
  ASoC: wm8974: fix a memory leak if another WM8974 is registered
  ASoC: wm8961: fix resource reclaim in wm8961_register error path
  ASoC: wm8955: fix resource reclaim in wm8955_register error path
  ASoC: wm8940: fix a memory leak if wm8940_register return error
  ASoC: wm8904: fix resource reclaim in wm8904_register error path
  ...
2010-08-07 17:07:31 -07:00
Tomi Valkeinen 26a8c2507a OMAP: DSS2: change manual update scaling setup
Currently the update area on manual update displays is automatically
enlargened to fully cover scaled overlays. This patch makes that
optional, allowing the panel driver to choose if it's used or not.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-08-05 16:52:03 +03:00
Takashi Iwai e71981343a Merge branch 'topic/asoc' into for-linus 2010-08-05 11:17:01 +02:00
Tony Lindgren d21872b368 Merge branch 'v2.6.35-omap-mailbox-for-next' of git://gitorious.org/~doyu/lk/mainline into omap-for-linus
Conflicts:
	arch/arm/mach-omap1/devices.c
2010-08-04 16:10:38 +03:00
Felipe Contreras b3e69146f4 omap: mailbox: reorganize headers
Remove kernel.h and module.h since they are not used correctly anyway.

Also, remove device.h since it comes along with platform_device.h
(always will I guess).

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04 15:50:20 +03:00
Felipe Contreras 9c80c8cd74 omap: mailbox: simplify omap_mbox_register()
No need to dynamically register mailboxes one by one.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04 15:50:19 +03:00
Felipe Contreras fc9960b282 omap: mailbox: remove unecessary fields
Nobody is using them.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04 15:50:18 +03:00
Hiroshi DOYU 6b23398591 omap mailbox: Set a device in logical mbox instance for traceability
With this patch, you'll get the following sysfs directories. This
structure implies that a single platform device, "omap2-mailbox" holds
multiple logical mbox instances. This could be the base to add sysfs
files for each logical mboxes. Then userland application can access a
mbox through sysfs entries if necessary(ex: setting kfifo size
dynamically)

  ~# tree -d -L 2 /sys/devices/platform/omap2-mailbox/
  /sys/devices/platform/omap2-mailbox/
  |-- driver -> ../../../bus/platform/drivers/omap2-mailbox
  |-- mbox
  |   |-- dsp      <- they are each instances of logical mailbox.
  |   |-- ducati
  |   |-- iva2
  |   |-- mbox01
  |   |-- mbox02
  |   |-- mbox03
  |   |-- .....
  |   `-- tesla
  |-- power
  `-- subsystem -> ../../../bus/platform

This was wrongly dropped by:
     commit c7c158e57b

Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04 15:50:17 +03:00
Ohad Ben-Cohen b5bebe4102 omap: mailbox: convert block api to kfifo
The underlying buffering implementation of mailbox
is converted from block API to kfifo due to the simplicity
and speed of kfifo.

The default size of the kfifo buffer is set to 256 bytes.
This value is configurable at compile time (via
CONFIG_OMAP_MBOX_KFIFO_SIZE), and can be changed at
runtime (via the mbox_kfifo_size module parameter).

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Signed-off-by: Hari Kanigeri <h-kanigeri2@ti.com>
Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04 15:50:17 +03:00
Ohad Ben-Cohen 01072d8f4b omap: mailbox: remove (un)likely macros from cold paths
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04 15:50:17 +03:00
Ohad Ben-Cohen f375325a04 omap: mailbox cleanup: split MODULE_AUTHOR line
use multiple MODULE_AUTHOR lines for multiple authors

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04 15:50:16 +03:00
Ohad Ben-Cohen 10d1a0028d omap: mailbox: convert rwlocks to spinlock
rwlocks are slower and have potential starvation issues
therefore spinlocks are generally preferred.

see also: http://lwn.net/Articles/364583/

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Signed-off-by: Kanigeri Hari <h-kanigeri2@ti.com>
Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04 15:50:16 +03:00
Fernando Guzman Lugo 1ea5d6d18b Mailbox: disable mailbox interrupt when request queue
when blk_get_request fails to get the request it is returning
without read the message from the mailbox fifo, then when it
leaves the isr and interruption is trigger again and again and
the workqueue which get elements from the request queue is never
executed and the kernel is stuck and shows a softlockup message.
Now the mailbox interrupt is disabled when request queue is full
and enabled when it pop a elememt form the request queue.

Signed-off-by: Fernando Guzman Lugo <x0095840@ti.com>
Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04 15:50:16 +03:00
Hiroshi DOYU 72b917ef90 Mailbox: new mutext lock for h/w mailbox configuration
mailbox startup and shutdown are being executed against
a single H/W module, and a mailbox H/W module is totally
__independent__ of the registration of logical mailboxes.
So, an independent mutext should be used for startup and
shutdown.

Signed-off-by: Fernando Guzman Lugo <x0095840@ti.com>
Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04 15:50:16 +03:00
Fernando Guzman Lugo 9caae4d87c Mailbox: Check valid registered callback before calling
This patch checks if the mailbox user has assinged a valid
callback fuction before calling it.

Signed-off-by: Fernando Guzman Lugo <x0095840@ti.com>
Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04 15:50:15 +03:00
Fernando Guzman Lugo 0e828e8c2b Mailbox: flush pending deferred works before freeing blk queue
flush pending deferred works before freeing blk_queue to prevent
any attempt of access to blk_queue after it was freed

Signed-off-by: Fernando Guzman Lugo <x0095840@ti.com>
Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04 15:50:15 +03:00
Fernando Guzman Lugo ad6d962735 Mailbox: free mailbox interrupt before freeing blk queue
Free interrupt before freeing blk_queue to avoid
any attempt of access to blk_queue after it was freed.

Signed-off-by: Fernando Guzman Lugo <x0095840@ti.com>
Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04 15:50:15 +03:00
Anand Gadiyar b0a1a6ce05 OMAP3630: Add ES1.1 and ES1.2 detection
Add revision detection for ES1.1 and ES1.2. Set default
revision as ES1.2.

Add CHIP_GE_OMAP3630ES1_1 to detect revisions 1.1 and later.
This is needed for at least one feature that is broken in
3630ES1.0 but exists on older (3430 ES3.1) and newer revisions.

Additionally, update some of the CHIP_GE_* macros to use other
macros for ease of maintenance.

Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Cc: Nishanth Menon <nm@ti.com>
Cc: Manjunatha GK <manjugk@ti.com>
[tony@atomide.com: update to remove fallthrough handling]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-04 14:43:51 +03:00
Artem Bityutskiy 49b368a6b3 omap: device: improve errors handling
Do not forget to check the 'platform_device_add_data()' error code
in 'omap_device_build_ss()'.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Acked-by: Nishanth Menon <nm@ti.com>
Acked-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-04 14:43:51 +03:00
Tony Lindgren 7590d1defd Merge branch 'devel-map-io' into omap-for-linus 2010-08-04 14:43:45 +03:00
Mike Rapoport 869fef4154 omap3: introduce omap3_map_io
Most OMAP3-based boards use exactly the same code for .map_io method in
the machine_desc structure.
This patch introduces omap3_map_io and updates board-* files to use it
as .map_io method.

Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-04 14:43:18 +03:00
Sergio Aguirre c573bcf96a omap3: Unify omap2_set_globals_3[43,6x]x functions
The only difference between them is the physical address of the
uart4 port, which is only present in 36xx chips.

We don't really need to care about keeping these 2 functions, since
the decision to use uart4 is more cleanly done later when we do have
access to omap_revision variable.

Signed-off-by: Sergio Aguirre <saaguirre@ti.com>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
[tony@atomide.com: added comment for the uart4_phys]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-04 14:43:18 +03:00
Tony Lindgren 331d919af4 Merge branch 'for_2.6.36' of git://git.pwsan.com/linux-2.6 into omap-for-linus 2010-08-04 08:46:24 +03:00
Jani Nikula 823c8e4a8a OMAP: DSS2: Add Nokia DSI command mode panel configuration struct
Introduce a configuration struct for platform/board specific information
of Nokia DSI command mode panels, to be used in addition to struct
omap_dss_device (passed via the 'void *data' member).

Signed-off-by: Jani Nikula <ext-jani.1.nikula@nokia.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-08-03 15:18:48 +03:00
Tomi Valkeinen 0c244f770f OMAP: DSS2: DSI: change dsi_vc_dcs_read_2 parameters
Change dsi_vc_dcs_read_2() data parameter to two u8 parameters to make the
byte-order clear.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-08-03 15:18:47 +03:00
Tobias Klauser 5a1819e3a8 OMAP: DSS2: storage class should be before const qualifier
The C99 specification states in section 6.11.5:

The placement of a storage-class specifier other than at the beginning
of the declaration specifiers in a declaration is an obsolescent
feature.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2010-08-03 15:18:45 +03:00
Sukumar Ghorai 2c01946c6b omap3 nand: cleanup virtual address usages
This patch removes direct reference of gpmc address from generic nand platform code.
Nand platform code now uses wrapper functions which are implemented in gpmc module.

Signed-off-by: Sukumar Ghorai <s-ghorai@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-02 15:30:38 +03:00
Sukumar Ghorai 948d38e799 omap3 gpmc: functionality enhancement
few functions added in gpmc module and to be used by other drivers like NAND.

Signed-off-by: Sukumar Ghorai <s-ghorai@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-02 15:29:25 +03:00
Tony Lindgren 055a1b8c99 Merge branch 'devel-misc' into omap-for-linus 2010-08-02 14:23:38 +03:00
stanley.miao ad0c63f1d6 OMAP3: AM3505/3517 do not have IO wakeup capability
AM3505/3517 doesn't have IO wakeup capability, so we do not need to set
the bit OMAP3430_EN_IO and the bit OMAP3430_EN_IO_CHAIN in the register
PM_WKEN_WKUP when the system enters suspend state.

Tested on AM3517EVM and OMAP3530EVM.

Signed-off-by: Stanley.Miao <stanley.miao@windriver.com>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-02 14:21:40 +03:00
Samu Onkalo 72a1179ed4 omap: dma: Support for prefetch in destination synchronizedtransfer
Omap DMA controller can prefetch data in advance in case of
destination synchronized data transfer. This may increase
performance when target HW block doesn't have fifo.
Data is waiting for transfer request in DMA fifo instead of read from memory.

Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-02 14:21:40 +03:00
Tony Lindgren 25d6f63093 omap2: Fix GPIO numbers and smc91x for 2430sdp
Fix GPIO numbers and smc91x for 2430sdp. The earlier code
had cut and paste errors from 3430sdp code. Also, 2430
has five GPIO banks for a total of 160 GPIO lines.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-02 14:21:39 +03:00
Cory Maccarrone 8b8fbd39e2 omap1: omap7xx clocks, mux, serial fixes
This change adds in the necessary clocks and mux pins for UART
control on omap7xx devices.  I also made a change in the serial
code to only try and initialize two UARTs in omap_serial_init, as
these devices don't have three.

Signed-off-by: Cory Maccarrone <darkstar6262@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-02 14:21:39 +03:00
Tony Lindgren 35ddf7c003 omap: Add back UART MDR1 check into uncompress.h
Recent DEBUG_LL and uncompress.h changes removed the check_port()
as pointed out by Cory Maccarrone <darkstar6262@gmail.com>.

This causes some boards to not boot, so add back the MDR1 register
check. The MDR1 register tells the mode of omap uart. Based on
an earlier patch by Cory Maccarrone <darkstar6262@gmail.com>.

Tested-by: Cory Maccarrone <darkstar6262@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-02 14:21:39 +03:00
Santosh Shilimkar 3f9eaf0984 omap4: Add smc API to read AuxCoreBoot0 register
This patch adds a secure API to read AuxCoreBoot0 register to
check the cpu boot status. It also moves the other smc APIs
to common omap44xx-smc.S. This APIs should not be marked as
__INIT because we need these to be present for CPU hotplug

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-02 13:18:18 +03:00
Russell King 98864ff58d ARM: OMAP: Convert OMAPFB and VRAM SDRAM reservation to LMB
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-27 08:48:23 +01:00
Paul Walmsley fb8ce14c7e OMAP: PM constraints: add omap_pm_set_min_clk_rate()
Add omap_pm_set_min_clk_rate().  This constraint is meant for use by
device drivers to translate a certain device-specific performance
constraint (e.g., "minimum polygons per second") to a clock rate for
the driver's device, given the driver's intimate knowledge of the
device hardware (e.g., device type, device hardware revision, firmware
revision, etc.)  From a general PM core perspective, clock rate is
probably the closest general analog to "performance" that is
available, but the exact mapping from a use-case-specific performance
constraint to clock rate must be done by the driver.  Drivers intended for
upstream merging shouldn't hardcode specific clock rates in their code
without basing those rates on some performance criteria requested through
the driver's subsystem (ideally, from userspace).

Imre Deak <imre.deak@nokia.com> described the need and use-case for
this constraint, and discussed the implementation - thanks, Imre.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Imre Deak <imre.deak@nokia.com>
2010-07-26 16:34:34 -06:00
Paul Walmsley 564889c1c0 OMAP: PM constraints: add return values; add requesting device param to omap_pm_set_max_dev_wakeup_lat()
Add return values to the PM constraint functions.  This allows the PM
core to provide feedback to the caller if a constraint is not
possible.  Update the one upstream user of omap_pm_set_max_mpu_wakeup_lat()
to add a compatibility wrapper, needed until the driver is changed.

Update some of the documentation to conform more closely to kerneldoc style.

Add an additional device parameter to omap_pm_set_max_dev_wakeup_lat()
to identify the device requesting the constraint.  This is so repeated calls
to omap_pm_set_max_dev_wakeup_lat() with the same requesting device can
override the device's previously-set constraint.  Also, it allows the PM
core to make a decision as to whether or not the constraint should be
satisfied, based on the caller's identity.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
2010-07-26 16:34:34 -06:00
Paul Walmsley 887adeac28 OMAP2+: hwmod/device: update documentation and copyright
Update some minor documentation issues and update copyright for
omap_device/omap_hwmod code.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Cc: Benoît Cousson <b-cousson@ti.com>
2010-07-26 16:34:33 -06:00
Paul Walmsley db2a60bf25 OMAP: hwmod/device: add omap_{device,hwmod}_get_mpu_rt_va
Add omap_device_get_mpu_rt_va().  This is intended to be used by
device drivers (currently, via a struct platform_data function
pointer) to retrieve their corresponding device's virtual base address
that the MPU should use to access the device.  This is needed because
the omap_hwmod code does its own ioremap(), in order to gain access to
the module's OCP_SYSCONFIG register.

Add omap_hwmod_get_mpu_rt_va().  omap_device_get_mpu_rt_va() calls this
function to do the real work.

While here, rename struct omap_hwmod._rt_va to struct
omap_hwmod._mpu_rt_va, to reinforce that it refers to the MPU's
register target virtual address base (as opposed to, for example, the
L3's).

In the future, this belongs as a function in an omap_bus, so it is not
necessary to call this through a platform_data function pointer.

The use-case for this function was originally presented by Santosh
Shilimkar <santosh.shilimkar@ti.com>.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
2010-07-26 16:34:33 -06:00
Kevin Hilman 6f88e9bc21 OMAP: PM: create omap_devices for MPU, DSP, L3
Create simple omap_devices for the main processors and busses.

This is required to support the forth-coming device-based OPP
approach, where OPPs are managed and tracked at the device level.

Also, move these common PM init functions into a common_pm_init call
that is called as a device_initcall().  The PM init is done at this level
to ensure that the driver core is initialized before initialized.

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
[paul@pwsan.com: sparse warnings cleaned up; newly-created functions moved
 from mach-omap2/io.c to mach-omap2/pm.c; newly-created functions renamed
 to start with "omap2" rather than "omap"]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2010-07-26 16:34:31 -06:00
Kevin Hilman 0656358159 OMAP: omap_device: ensure hwmod tracks attached omap_device pointer
The omap_hwmod struct has a field to track the omap_device that is
attached to it, but it was not being assigned.  Fix by assigning omap_device
pointer when omap_device is built.

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
[paul@pwsan.com: use an array index rather than pointer arithmetic]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2010-07-26 16:34:30 -06:00
Rajendra Nayak 681fddc6d0 OMAP4: hwmod: Enable omap_device build for OMAP4
Enable omap_device layer support for OMAP4, so that drivers can
use them to enable/idle/shutdown devices.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2010-07-26 16:34:30 -06:00
Paul Walmsley 97d60162f6 OMAP: hwmod: allow omap_hwmod_late_init() caller to skip module idle in _setup()
On kernels that don't use the omap_device_enable() calls to enable
devices, leave all on-chip devices enabled in hwmod _setup().
Otherwise, accesses to those devices are likely to fail, crashing the
system.  It's expected that kernels built without CONFIG_PM_RUNTIME
will be the primary use-case for this.  This functionality is
controlled by adding an extra parameter to omap_hwmod_late_init().

This patch is based on the patch "OMAP: hwmod: don't auto-disable
hwmod when !CONFIG_PM_RUNTIME" by Kevin Hilman
<khilman@deeprootsystems.com>.

Cc: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2010-07-26 16:34:30 -06:00
Kevin Hilman 848240223c OMAP: hwmod: add non-locking versions of enable and idle functions
Some hwmods may need to be idled/enabled in atomic context, so
non-locking versions of these functions are required.

Most users should not need these and usage of theses should be
controlled to understand why access is being done in atomic context.
For this reason, the non-locking functions are only exposed at the
hwmod level and not at the omap-device level.

The use-case that led to the need for the non-locking versions is
hwmods that are enabled/idled from within the core idle/suspend path.
Since interrupts are already disabled here, the mutex-based locking in
hwmod can sleep and will cause potential deadlocks.

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2010-07-26 16:34:29 -06:00
Paul Walmsley b3c1cff698 OMAP: clock: add kerneldoc for structures; move flags closer to structs
Add kerneldoc for struct clk, struct clksel_rate, struct clksel.  Move
flag macros for struct clk.flags and struct clksel_rate.flags closer
to the structures.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
2010-07-26 16:34:27 -06:00
Russell King 71ee7dad9b ARM: OMAP: Convert to use ->reserve method to reserve boot time memory
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-16 11:06:41 +01:00
Russell King a1af0fbbba ARM: OMAP: Cleanup OMAP FB SDRAM reservation
The logic in this file is rather convoluted, but essentially:

1. region type 0 is SDRAM
2. referring to the code fragment
                if (set_fbmem_region_type(&rg, OMAPFB_MEMTYPE_SDRAM,
                                          sdram_start, sdram_size) < 0 ||
                    (rg.type != OMAPFB_MEMTYPE_SDRAM))
                        continue;
   - if rg.type is not OMAPFB_MEMTYPE_SDRAM, set_fbmem_region_type()
     returns zero immediately (since rg.type is non-zero), and so we
     'continue'.
   - if rg.type is OMAPFB_MEMTYPE_SDRAM, and rg.paddr is zero,
     we fall through.
   - if rg.type is OMAPFB_MEMTYPE_SDRAM, and the region lies within
     SDRAM, we fall through.
   - if rg.type is OMAPFB_MEMTYPE_SDRAM, and the region is not within
     SDRAM, we 'continue'.
3. check_fbmem_region seems unnecessary.
   - we know rg.type is OMAPFB_MEMTYPE_SDRAM
   - we can check rg.size independently
   - bootmem_reserve() can check for overlapping reservations itself
   - we've already validated that the requested region lies within SDRAM.
4. avoid BUG()ing if the region entry is already set; print an error,
   and mark the configuration invalid - at least we'll continue booting
   so the error message has a chance of being logged/visible via serial
   console.

With these changes in place, it makes the code much easier to understand
and hence easier to convert to LMB.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-16 11:06:41 +01:00