Commit Graph

72 Commits

Author SHA1 Message Date
Tomi Valkeinen 403ee909e4 ARM: OMAP2+: display: detect DRA7 DSS
Add platform code to detect DRA7 DSS.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
2015-06-04 09:02:14 +03:00
Tomi Valkeinen 5b5992ac64 ARM: OMAP: display: change compat names to array
Simplify the DSS detection logic by creating a list of the omapdss
compat strings, instead of checking each separately with an 'if'.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
2015-06-04 09:02:09 +03:00
Tero Kristo 23d34981c7 ARM: OMAP4: display: convert display to use syscon for dsi muxing
The legacy control module APIs will be gone, thus convert the display
driver to use syscon. This change should eventually be moved to
display driver from the board directory.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
2015-03-31 21:26:58 +03:00
Joe Perches 3d0cb73e9c arm: mach-omap2: Convert pr_warning to pr_warn
Use the more common pr_warn.

Other miscellanea:

o Realign arguments

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-09-18 09:53:57 -07:00
Tomi Valkeinen f2dd36ac99 OMAPDSS: move 'compatible' converter to omapdss driver
Move the panel/encoder driver compatible-string converter from
arch/arm/mach-omap2/display.c to omapdss driver. That is a more logical
place for it, as it's really an omapdss internal hack.

The code is rewritten to follow the video node graph, starting from
omapdss. This removes the need to have the device compatible-string
database.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-05-28 09:25:15 +03:00
Tomi Valkeinen 9a3089481a ARM: OMAP: add detection of omap5-dss
Add detection of omap5-dss nodes so that the related devices get
initialized.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-05-09 15:11:27 +03:00
Sathya Prakash M R d6279d4ae1 OMAPDSS: Add DSS features for AM43xx
Add DSS features for AM43xx.

Signed-off-by: Sathya Prakash M R <sathyap@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-05-09 15:11:26 +03:00
Marek Belisko 1f32450911 omapdss: panel-tpo-td028ec1: Add DT support.
Signed-off-by: Marek Belisko <marek@goldelico.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-05-09 12:35:51 +03:00
Tomi Valkeinen 17d5ca91cf Merge branch '3.15/dss-dt' into 3.15/fbdev
Merge OMAP DSS DT support
2014-03-20 08:13:50 +02:00
Tomi Valkeinen 6a0e6b3872 ARM: OMAP2+: DT 'compatible' tweak for displays
As there is no common panel framework in the kernel, we have OMAP
specific panel drivers. However, the DT data should be generic. This
brings the issue that some other platform could use the same panels, and
would need to create a driver with the same 'compatible' string as the
OMAP driver.

In the long run, we have to get a common panel framework. For the time
being, this patch solves the issue:

At early boot time, we go through the DT nodes looking for the panels
the kernel supports for OMAP. For each found node, the 'compatible'
string is prepended with "omapdss,", i.e. "sony,acx565akm" becomes
"omapdss,sony,acx565akm". The OMAP display drivers all have "omapdss,"
at the beginning of their compatible field.

This allows us to have generic DT data, but OMAP specific display
drivers.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Archit Taneja <archit@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
2014-03-19 11:02:46 +02:00
Tomi Valkeinen dcdf407b9d ARM: OMAP2+: add omapdss_init_of()
The OMAP display architecture requires a bunch of platform devices which
are not created via .dts (for now). We also need to pass a few function
pointers and the DSS hardware version from the arch code to omapdss
driver.

This patch adds omapdss_init_of() function, called from board-generic at
init time, which handles those tasks.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Archit Taneja <archit@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
2014-03-19 10:52:23 +02:00
Tomi Valkeinen eba358435b OMAPDSS: Remove unused get_context_loss_count support
The omapdss driver no longer uses get_context_loss_count call, so we can
remove it.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Archit Taneja <archit@ti.com>
2014-02-28 12:35:43 +02:00
Tomi Valkeinen 130f769e81 Revert "ARM: OMAP2+: Remove legacy mux code for display.c"
Commit e30b06f4d5 (ARM: OMAP2+: Remove
legacy mux code for display.c) removed non-DT DSI and HDMI pinmuxing.
However, DSI pinmuxing is still needed, and removing that caused DSI
displays not to work.

This reverts the DSI parts of the commit.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-12-17 16:28:34 -08:00
Tony Lindgren e30b06f4d5 ARM: OMAP2+: Remove legacy mux code for display.c
This is all omap4 specific, which is device tree based
nowadays and should use pinctrl-single instead.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-11-18 16:24:57 -08:00
Archit Taneja 576e5bda70 ARM: OMAP2+: display: Create omap_vout device inside omap_display_init
Move omap_vout device creation inside the omap_display_init so that we can
correctly create the device based on the presence of omapdss within the
platform.

For example, on a kernel image supporting multiple platforms, omap_init_vout
will create a omapdrm platform device on a AM33xx platform even though it
doesn't have a DSS block.

Signed-off-by: Archit Taneja <archit@ti.com>
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-10-08 14:03:07 -07:00
Archit Taneja fc8df75217 ARM: OMAP2+: display: Create omapvrfb and omapfb devices inside omap_display_init
Move omapfb and omapvrfb device creation inside the omap_display_init so that
we can correctly create the device based on the presence of omapdss within the
platform.

For example, on a kernel image supporting multiple platforms, omap_init_vrfb and
omap_init_fb will create omapvrfb and omapfb platform devices respectively on a
AM33xx platform even though it doesn't have a VRFB or DSS block.

Signed-off-by: Archit Taneja <archit@ti.com>
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-10-08 14:02:51 -07:00
Archit Taneja 7a59743d0c ARM: OMAP2+: display: Create omapdrm device inside omap_display_init
Move omapdrm device creation inside the omap_display_init so that we can
correctly create the device based on the presence of omapdss within the
platform.

For example, on a kernel image supporting multiple platforms, omap_init_drm
will create a omapdrm platform device on a AM33xx platform even though it
doesn't have a DSS block.

Originally worked on by Andy Gross.

Cc: Andy Gross <andygro@gmail.com>
Signed-off-by: Archit Taneja <archit@ti.com>
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-10-08 14:02:35 -07:00
Tomi Valkeinen 35f5df6fd8 OMAPDSS: fix DPI and SDI device ids
The DPI and SDI platform devices are currently created with the ID of
-1. The ID doesn't currently affect anything.

However, we have added regulator supply entries for "omapdss_dpi.0" and
"omapdss_sdi.0" to the board files, although these supply entries are
not yet used. As the ID used for the devices is -1, these regulator
supply entries will not work.

To fix the issue, assign ID of 0 to the devices. In the future there may
be more than one DPI or SDI output, so it makes sense to have a proper
ID for them.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Archit Taneja <archit@ti.com>
2013-08-29 16:21:51 +03:00
Paul Walmsley c1d1cd597f ARM: OMAP2+: omap_device: remove obsolete pm_lats and early_device code
Remove now-obsolete code from arch/arm/mach-omap2/omap_device.c.  This
mostly consists of removing the first attempt at device PM latency
handling.  This was never really used, has been replaced by the common
dev_pm_qos code, and needs to go away as part of the DT conversion.
Also, the early platform_device creation code has been removed, as it
appears to be unused.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
2013-01-26 00:48:53 -07:00
Linus Torvalds 2b8318881d fbdev changes for 3.8:
OMAPDSS changes, including:
 - use dynanic debug prints
 - OMAP platform dependency removals
 - Creation of compat-layer, helping us to improve omapdrm
 - Misc cleanups, aiming to make omadss more in line with the upcoming common
   display framework
 
 Exynos DP changes for the 3.8 merge window:
 - Device Tree support for Samsung Exynos DP
 - SW Link training is cleaned up.
 - HPD interrupt is supported.
 
 Samsung Framebuffer changes for the 3.8 merge window:
 - The bit definitions of header file are updated.
 - Some minor typos are fixed.
 - Some minor bugs of s3c_fb_check_var() are fixed.
 
 FB related changes for SH Mobile, Freescale DIU
 
 Add support for the Solomon SSD1307 OLED Controller
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Merge tag 'fbdev-for-3.8' of git://gitorious.org/linux-omap-dss2/linux

Pull fbdev changes from Tomi Valkeinen:
 "OMAPDSS changes, including:
   - use dynanic debug prints
   - OMAP platform dependency removals
   - Creation of compat-layer, helping us to improve omapdrm
   - Misc cleanups, aiming to make omadss more in line with the upcoming
     common display framework

  Exynos DP changes for the 3.8 merge window:
   - Device Tree support for Samsung Exynos DP
   - SW Link training is cleaned up.
   - HPD interrupt is supported.

  Samsung Framebuffer changes for the 3.8 merge window:
   - The bit definitions of header file are updated.
   - Some minor typos are fixed.
   - Some minor bugs of s3c_fb_check_var() are fixed.

  FB related changes for SH Mobile, Freescale DIU

  Add support for the Solomon SSD1307 OLED Controller"

* tag 'fbdev-for-3.8' of git://gitorious.org/linux-omap-dss2/linux: (191 commits)
  OMAPDSS: fix TV-out issue with DSI PLL
  Revert "OMAPFB: simplify locking"
  OMAPFB: remove silly loop in fb2display()
  OMAPFB: fix error handling in omapfb_find_best_mode()
  OMAPFB: use devm_kzalloc to allocate omapfb2_device
  OMAPDSS: DISPC: remove dispc fck uses
  OMAPDSS: DISPC: get dss clock rate from dss driver
  drivers/video/console/softcursor.c: remove redundant NULL check before kfree()
  drivers/video: add support for the Solomon SSD1307 OLED Controller
  OMAPDSS: use omapdss_compat_init() in other drivers
  OMAPDSS: export dispc functions
  OMAPDSS: export dss_feat functions
  OMAPDSS: export dss_mgr_ops functions
  OMAPDSS: separate compat files in the Makefile
  OMAPDSS: move display sysfs init to compat layer
  OMAPDSS: DPI: use dispc's check_timings
  OMAPDSS: DISPC: add dispc_ovl_check()
  OMAPDSS: move irq handling to dispc-compat
  OMAPDSS: move omap_dispc_wait_for_irq_interruptible_timeout to dispc-compat.c
  OMAPDSS: move blocking mgr enable/disable to compat layer
  ...

Conflicts:
	arch/arm/mach-davinci/devices-da8xx.c
	arch/arm/plat-omap/common.c
	drivers/media/platform/omap/omap_vout.c
2012-12-15 13:03:48 -08:00
Paul Walmsley b13159afb4 ARM: OMAP2+: PRCM: consolidate PRCM-related timeout macros
Consolidate all of the copies of MAX_MODULE_HARDRESET_WAIT and
MAX_MODULE_SOFTRESET_WAIT into one place, arch/arm/mach-omap2/prm.h.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Tested-by: Vaibhav Hiremath <hvaibhav@ti.com>
2012-11-08 15:09:26 -07:00
Tomi Valkeinen ffc81fc5f3 OMAPDSS: split hdmi muxing function
Split the omap4_hdmi_mux_pads() function into two parts, one handles the
tpd12s015 gpio muxing, the other handles the hdmi pins.

This is clearer, as hdmi and tpd12s015 are separate devices, and it also
allows us to mux those separately with DT.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Ricardo Neri <ricardo.neri@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
2012-10-29 12:44:44 +02:00
Tony Lindgren e4c060db2c ARM: OMAP: Split plat/cpu.h into local soc.h for mach-omap1 and mach-omap2
We want to remove plat/cpu.h. To do this, let's first split
it to private soc.h to mach-omap1 and mach-omap2. We have to
keep plat/cpu.h around until the remaining drivers are fixed,
so let's include the local soc.h in plat/cpu.h and for drivers
still including plat/cpu.h.

Once the drivers are fixed not to include plat/cpu.h, we
can remove the file.

This is needed for the ARM common zImage support.

[tony@atomide.com: updated to not print a warning]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-10-18 16:23:46 -07:00
Tony Lindgren 1d5aef4950 ARM: OMAP: Make plat/omap-pm.h local to mach-omap2
We must move this for ARM common zImage support.

Note that neither drivers/media/rc/ir-rx51.c or
drivers/media/platform/omap3isp/ispvideo.c need
to include omap-pm.h, so this patch removes the
include for those files.

Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: Timo Kokkonen <timo.t.kokkonen@iki.fi>
Cc: linux-media@vger.kernel.org
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-10-18 16:22:08 -07:00
Tony Lindgren 2a296c8f89 ARM: OMAP: Make plat/omap_hwmod.h local to mach-omap2
Let's make omap_hwmod local to mach-omap2 for
ARM common zImage support.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-10-18 16:05:55 -07:00
Tony Lindgren 25c7d49ed4 ARM: OMAP: Make omap_device local to mach-omap2
Let's make omap_device local to mach-omap2 for
ARM common zImage support.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-10-17 12:08:40 -07:00
Tomi Valkeinen acd18af93a OMAPDSS: add omapdss_version
Add new enum, omapdss_version, that is used to tell which DSS hardware
version the SoC has. This enum is initialized during platform init, and
passed in the platform data to omapdss driver.

Note that the versions are not "continuous", that is, you cannot check
if the version is less or greater than something, but you need to check
for exact version match. In other words, this is invalid:

/* test if DSS is 3630 or earlier */
if (ver <= OMAPDSS_VER_OMAP3630)
	...

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-10-16 13:43:56 +03:00
Linus Torvalds 5f76945a9c fbdev updates for 3.7
It includes:
 - large updates for OMAP
   - basic OMAP5 DSS support for DPI and DSI outputs
   - large cleanups and restructuring
 - some update to Exynos and da8xx-fb
 - removal of the pnx4008 driver (arch removed)
 - various other small patches
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Merge tag 'fbdev-updates-for-3.7' of git://github.com/schandinat/linux-2.6

Pull fbdev updates from Florian Tobias Schandinat:
 "This includes:
   - large updates for OMAP
     - basic OMAP5 DSS support for DPI and DSI outputs
     - large cleanups and restructuring
   - some update to Exynos and da8xx-fb
   - removal of the pnx4008 driver (arch removed)
   - various other small patches"

Fix up some trivial conflicts (mostly just include line changes, but
also some due to the renaming of the deferred work functions by Tejun).

* tag 'fbdev-updates-for-3.7' of git://github.com/schandinat/linux-2.6: (193 commits)
  gbefb: fix compile error
  video: mark nuc900fb_map_video_memory as __devinit
  video/mx3fb: set .owner to prevent module unloading while being used
  video: exynos_dp: use clk_prepare_enable and clk_disable_unprepare
  drivers/video/exynos/exynos_mipi_dsi.c: fix error return code
  drivers/video/savage/savagefb_driver.c: fix error return code
  video: s3c-fb: use clk_prepare_enable and clk_disable_unprepare
  da8xx-fb: save and restore LCDC context across suspend/resume cycle
  da8xx-fb: add pm_runtime support
  video/udlfb: fix line counting in fb_write
  OMAPDSS: add missing include for string.h
  OMAPDSS: DISPC: Configure color conversion coefficients for writeback
  OMAPDSS: DISPC: Add manager like functions for writeback
  OMAPDSS: DISPC: Configure writeback FIFOs
  OMAPDSS: DISPC: Configure writeback specific parameters in dispc_wb_setup()
  OMAPDSS: DISPC: Configure overlay-like parameters in dispc_wb_setup
  OMAPDSS: DISPC: Add function to set channel in for writeback
  OMAPDSS: DISPC: Don't set chroma resampling bit for writeback
  OMAPDSS: DISPC: Downscale chroma if plane is writeback
  OMAPDSS: DISPC: Configure input and output sizes for writeback
  ...
2012-10-12 10:21:02 +09:00
Wei Yongjun 9ee677231b OMAPDSS: fix return value check in create_dss_pdev()
In case of error, the function omap_device_alloc() returns ERR_PTR()
not NULL pointer. The NULL test in the return value check should
be replaced with IS_ERR().

dpatch engine is used to auto generated this patch.
(https://github.com/weiyj/dpatch)

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-10-08 15:43:57 -07:00
Linus Torvalds 5e090ed7af ARM: soc: late platform updates
This branch contains updates to OMAP and Marvell platforms (kirkwood,
 dove, mvebu) that came in after we had done the big multiplatform merges,
 so they were kept separate from the rest, and not separated into the
 traditional topics of cleanup/driver/platform features.
 
 For OMAP, the updates are:
 - Runtime PM conversions for the GPMC and RNG IP blocks
 - Preparation patches for the OMAP common clock framework conversion
 - clkdev alias additions required by other drivers
 - Performance Monitoring Unit (PMU) support for OMAP2, 3, and non-4430 OMAP4
 - OMAP hwmod code and data improvements
 - Preparation patches for the IOMMU runtime PM conversion
 - Preparation patches for OMAP4 full-chip retention support
 
 For Kirkwood/Dove/mvebu:
 
 - New driver for "address decoder controller" for mvebu, which
   is a piece of hardware that configures addressable devices and
   peripherals. First user is the boot rom aperture on armada XP since
   it is needed for SMP support.
 - New device tree bindings for peripherals such as gpio-fan, iconnect
   nand, mv_cesa and the above address decoder controller.
 - Some defconfig updates, mostly to enable new DT boards and a few drivers.
 - New drivers using the pincontrol subsystem for dove, kirkwood and mvebu
 - New clean gpio driver for mvebu
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Merge tag 'soc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull late ARM soc platform updates from Olof Johansson:
 "This branch contains updates to OMAP and Marvell platforms (kirkwood,
  dove, mvebu) that came in after we had done the big multiplatform
  merges, so they were kept separate from the rest, and not separated
  into the traditional topics of cleanup/driver/platform features.

  For OMAP, the updates are:
   - Runtime PM conversions for the GPMC and RNG IP blocks
   - Preparation patches for the OMAP common clock framework conversion
   - clkdev alias additions required by other drivers
   - Performance Monitoring Unit (PMU) support for OMAP2, 3, and
     non-4430 OMAP4
   - OMAP hwmod code and data improvements
   - Preparation patches for the IOMMU runtime PM conversion
   - Preparation patches for OMAP4 full-chip retention support

  For Kirkwood/Dove/mvebu:
   - New driver for "address decoder controller" for mvebu, which is a
     piece of hardware that configures addressable devices and
     peripherals.  First user is the boot rom aperture on armada XP
     since it is needed for SMP support.
   - New device tree bindings for peripherals such as gpio-fan, iconnect
     nand, mv_cesa and the above address decoder controller.
   - Some defconfig updates, mostly to enable new DT boards and a few
     drivers.
   - New drivers using the pincontrol subsystem for dove, kirkwood and
     mvebu
   - New clean gpio driver for mvebu"

* tag 'soc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (98 commits)
  ARM: mvebu: fix build breaks from multi-platform conversion
  ARM: OMAP4460/4470: PMU: Enable PMU for OMAP4460/70
  ARM: OMAP2+: PMU: Add runtime PM support
  ARM: OMAP4430: PMU: prepare to create PMU device via HWMOD
  ARM: OMAP2+: PMU: Convert OMAP2/3 devices to use HWMOD
  ARM: OMAP3: hwmod data: Add debugss HWMOD data
  ARM: OMAP2+: clockdomain/hwmod: add workaround for EMU clockdomain idle problems
  ARM: OMAP: Add a timer attribute for timers that can interrupt the DSP
  hwrng: OMAP: remove SoC restrictions from driver registration
  ARM: OMAP: split OMAP1, OMAP2+ RNG device registration
  hwrng: OMAP: convert to use runtime PM
  hwrng: OMAP: store per-device data in per-device variables, not file statics
  ARM: OMAP2xxx: hwmod/CM: add RNG integration data
  ARM: OMAP2+: gpmc: minimal driver support
  ARM: OMAP2+: gpmc: Adapt to HWMOD
  ARM: OMAP2/3: hwmod data: add gpmc
  ARM: OMAP4: hwmod data: add mmu hwmod for ipu and dsp
  ARM: OMAP3: hwmod data: add mmu data for iva and isp
  ARM: OMAP: iommu: fix including iommu.h without IOMMU_API selected
  ARM: OMAP4: hwmod data: add missing HWMOD_NO_IDLEST flags to some PRCM IP blocks
  ...
2012-10-07 20:55:16 +09:00
Andi Kleen bcad6dc363 sections: fix section conflicts in arch/arm/
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-10-06 03:04:38 +09:00
Rajendra Nayak 4d7cb45ee8 ARM: omap: clk: add clk_prepare and clk_unprepare
As part of Common Clk Framework (CCF) the clk_enable() operation
was split into a clk_prepare() which could sleep, and a clk_enable()
which should never sleep. Similarly the clk_disable() was
split into clk_disable() and clk_unprepare(). This was
needed to handle complex cases where in a clk gate/ungate
would require a slow and a fast part to be implemented.
None of the clocks below seem to be in the 'complex' clocks
category and are just simple clocks which are enabled/disabled
through simple register writes.
Most of the instances also seem to be called in non-atomic
context which means its safe to move all of those from
using a clk_enable() to clk_prepare_enable() and clk_disable() to
clk_disable_unprepare().

For some others, mainly the ones handled through the hwmod framework
there is a possibility that they get called in either an atomic
or a non-atomic context.

The way these get handled below work only as long as clk_prepare
is implemented as a no-op (which is the case today) since this gets
called very early at boot while most subsystems are unavailable.
Hence these are marked with a *HACK* comment, which says we need
to re-visit these once we start doing something meaningful with
clk_prepare/clk_unprepare like doing voltage scaling or something
that involves i2c.

This is in preparation of OMAP moving to CCF.

Based on initial changes from Mike Turquette.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-09-22 10:50:01 -06:00
Chandrabhanu Mahapatra 572bbd58e1 ARM: OMAP: Disable venc for OMAP4
This is a alternative to "HACK: OMAP: DSS2: VENC: disable VENC on OMAP4 to
prevent crash" (ba02fa37de) by Tomi Valkeinen <tomi.valkeinen@ti.com> to prevent
VENC from crashing OMAP4 kernel. This prevents OMAPDSS from initial registration
of a device for VENC on OMAP4.

Signed-off-by: Chandrabhanu Mahapatra <cmahapatra@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-08-22 11:43:04 +03:00
Chandrabhanu Mahapatra 465698ee7b ARM: OMAP2PLUS: DSS: Disable LCD3 output when resetting DSS
The dispc_disable_outputs() function currently disables all LCD managers except
LCD3. This patch adds disabling functionality for LCD3 manager thereby
maintaining consistency of Display Subsystem for in case Display Controller is
reset when LCD3 manager is in use.

Signed-off-by: Chandrabhanu Mahapatra <cmahapatra@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-06-29 10:37:53 +03:00
Tomi Valkeinen c3a21fc79b OMAPDSS: fix registration of DPI and SDI devices
The omapdss arch initialization code registers all the output devices as
omap_devices. However, DPI and SDI are not proper omap_devices, as they
do not have any corresponding HWMOD. This leads to crashes or problems
when the platform code tries to use omap_device functions for DPI and
SDI devices.

One such crash was reported by John Stultz <johnstul@us.ibm.com>:

[   18.756835] Unable to handle kernel NULL pointer dereference at
virtual addr8
[   18.765319] pgd = ea6b8000
[   18.768188] [00000018] *pgd=aa942831, *pte=00000000, *ppte=00000000
[   18.774749] Internal error: Oops: 17 [#1] SMP ARM
[   18.779663] Modules linked in:
[   18.782836] CPU: 0    Not tainted  (3.5.0-rc1-dirty #456)
[   18.788482] PC is at _od_resume_noirq+0x1c/0x78
[   18.793212] LR is at _od_resume_noirq+0x6c/0x78
[   18.797943] pc : [<c00307ec>]    lr : [<c003083c>]    psr: 20000113
[   18.797943] sp : ec3abe80  ip : ec3abdb8  fp : 00000006
[   18.809936] r10: ec1148b8  r9 : c08a48f0  r8 : c00307d0
[   18.815368] r7 : 00000000  r6 : 00000000  r5 : ec114800  r4 :
ec114808
[   18.822174] r3 : 00000000  r2 : 00000000  r1 : ec154fe8  r0 :
00000006
[   18.829010] Flags: nzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM
Segment user
[   18.836456] Control: 10c5387d  Table: aa6b804a  DAC: 00000015
[   18.842437] Process sh (pid: 1139, stack limit = 0xec3aa2f0)
[   18.848358] Stack: (0xec3abe80 to 0xec3ac000)

DPI and SDI can be plain platform_devices. This patch changes the
registration from omap_device_register() to platform_device_add().

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reported-by: John Stultz <johnstul@us.ibm.com>
Tested-by: Jean Pihet <jean.pihet@newoldbits.com>
2012-06-05 17:15:24 +03:00
Tomi Valkeinen 35deca3de6 OMAPDSS: interface drivers register their panel devices
Currently the higher level omapdss platform driver gets the list of
displays in its platform data, and uses that list to create the
omap_dss_device for each display.

With DT, the logical way to do the above is to list the displays under
each individual output, i.e. we'd have "dpi" node, under which we would
have the display that uses DPI. In other words, each output driver
handles the displays that use that particular output.

To make the current code ready for DT, this patch modifies the output
drivers so that each of them creates the display devices which use that
output. However, instead of changing the platform data to suit this
method, each output driver is passed the full list of displays, and the
drivers pick the displays that are meant for them. This allows us to
keep the old platform data, and thus we avoid the need to change the
board files.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-05-11 14:52:23 +03:00
Tomi Valkeinen 53f576a8dc OMAPDSS: create DPI & SDI devices
We currently have separate device/driver for each DSS HW module. The DPI
and SDI outputs are more or less parts of the DSS or DISPC hardware
modules, but in SW it makes sense to represent them as device/driver
pairs similarly to all the other outputs. This also makes sense for
device tree, as each node under dss will be a platform device, and
handling DPI & SDI somehow differently than the rest would just make the
code more complex.

This patch modifies arch/arm/mach-omap2/display.c to create platform
devices for DPI and SDI, and later patches will implement driver for
them.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-05-11 14:44:51 +03:00
Tomi Valkeinen 966eaed08c OMAPDSS: create custom pdevs for DSS omap_devices
Instead of using omap_device_build() to create the omap_devices for DSS
hwmods, create them with a custom function. This will allow us to create
a parent-child hierarchy for the devices so that the omapdss_core device
is parent for the rest of the dss hwmod devices.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-05-11 14:44:51 +03:00
Tomi Valkeinen 00928eaf52 OMAPDSS: clean up the omapdss platform data mess
The omapdss pdata handling is a mess. This is more evident when trying
to use device tree for DSS, as we don't have platform data anymore in
that case. This patch cleans the pdata handling by:

- Remove struct omap_display_platform_data. It was used just as a
  wrapper for struct omap_dss_board_info.
- Pass the platform data only to omapdss device. The drivers for omap
  dss hwmods do not need the platform data. This should also work better
  for DT, as we can create omapdss device programmatically in generic omap
  boot code, and thus we can pass the pdata to it.
- Create dss functions for get_ctx_loss_count and dsi_enable/disable_pads
  that the dss hwmod drivers can call.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-05-11 14:44:51 +03:00
Tomi Valkeinen 62c1dcfc74 OMAPDSS: add set_min_bus_tput pointer to omapdss's platform data
omapdss driver needs to use the omap_pm_set_min_bus_tput(), so add a new
entry for that in omapdss's platform data, and set it.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Paul Walmsley <paul@pwsan.com>
Acked-by: Kevin Hilman <khilman@ti.com>
2012-04-23 10:48:03 +03:00
Tony Lindgren a2cb960f17 Merge branch 'fix-dss-mux' into fixes 2012-03-29 10:05:37 -07:00
Tomi Valkeinen e8a30b251b ARM: OMAP2+: Remove __init from DSI mux functions
Commit d1589f0912 (ARM: OMAP2+: Mark
omap_hsmmc_init and omap_mux related functions as __init) changed DSI
muxing functions to __init. This doesn't work, as the muxing functions
are used every time a DSI display is enabled or disabled.

This patch removes the __inits from DSI mux functions that were
accidentally marked as __init, and makes omap4_hdmi_mux_pads __init
like it should be.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
[tony@atomide.com: update comments, mark omap4_hdmi_mux_pads __init]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-03-19 20:03:15 -07:00
Kevin Hilman 015f1e4297 Merge remote-tracking branch 'omap/hsmmc' into for_3.4/cleanup/pm-base 2012-03-05 15:37:04 -08:00
Tony Lindgren d1589f0912 ARM: OMAP2+: Mark omap_hsmmc_init and omap_mux related functions as __init
Now that omap hsmmc init is split into two functions, it's safe
to mark omap_hsmmc_init and omap_mux related functions to __init.

This basically reverts the following fixes for the case where
TWL was compiled as a module:

a98f77b (ARM: omap: fix section mismatch warning for sdp3430_twl_gpio_setup())
8930b4e (ARM: omap: fix section mismatch warnings in mux.c caused by hsmmc.c)

Additionally it fixes up the remaining section warnings for
all callers of omap_mux functions.

Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-02-24 13:04:10 -08:00
Tony Lindgren ee0839c22c ARM: OMAP2+: Move most of plat/io.h into local iomap.h
There's no need to have these defines in plat/io.h.

Note that we now need to ifdef omap_read/write calls
as they will be available for omap1 only.

While at it, clean up the includes to group them like
they typically are grouped.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-02-24 10:34:35 -08:00
Linus Torvalds 98e9685248 fbdev fixes for 3.3
It includes:
 - a compile fix for fsl-diu-fb
 
 - a fix for a suspend/resume issue in atmel_lcdfb
 
 - a fix for a suspend/resume issue in OMAP
 
 - a workaround for a hardware bug to avoid physical damage in OMAP
 
 - a really trivial dead code removal in intelfb
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Merge tag 'fbdev-fixes-for-3.3-1' of git://github.com/schandinat/linux-2.6

fbdev fixes for 3.3

It includes:
 - compile fix for fsl-diu-fb
 - fix for a suspend/resume issue in atmel_lcdfb
 - fix for a suspend/resume issue in OMAP
 - workaround for a hardware bug to avoid physical damage in OMAP
 - really trivial dead code removal in intelfb

* tag 'fbdev-fixes-for-3.3-1' of git://github.com/schandinat/linux-2.6:
  atmel_lcdfb: fix usage of CONTRAST_CTR in suspend/resume
  intelfb: remove some dead code
  drivers/video: compile fixes for fsl-diu-fb.c
  OMAPDSS: HDMI: PHY burnout fix
  OMAP: 4430SDP/Panda: add HDMI HPD gpio
  OMAP: 4430SDP/Panda: setup HDMI GPIO muxes
  OMAPDSS: remove wrong HDMI HPD muxing
  OMAP: 4430SDP/Panda: rename HPD GPIO to CT_CP_HPD
  OMAP: 4430SDP/Panda: use gpio_free_array to free HDMI gpios
  OMAPDSS: use sync versions of pm_runtime_put
2012-02-07 15:54:02 -08:00
Tomi Valkeinen 7bb122d155 OMAPDSS: remove wrong HDMI HPD muxing
"hdmi_hpd" pin is muxed to INPUT and PULLUP, but the pin is not
currently used, and in the future when it is used, the pin is used as a
GPIO and is board specific, not an OMAP4 wide thing.

So remove the muxing for now.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
2012-01-26 13:51:34 +02:00
Linus Torvalds 51be08419d Merge branch 'fbdev-next' of git://github.com/schandinat/linux-2.6
* 'fbdev-next' of git://github.com/schandinat/linux-2.6: (175 commits)
  module_param: make bool parameters really bool (drivers/video/i810)
  Revert "atmel_lcdfb: Adjust HFP calculation so it matches the manual."
  OMAPDSS: HDMI: Disable DDC internal pull up
  OMAPDSS: HDMI: Move duplicate code from boardfile
  OMAPDSS: add OrtusTech COM43H4M10XTC display support
  OMAP: DSS2: Support for UMSH-8173MD TFT panel
  ASoC: OMAP: HDMI: Move HDMI codec trigger function to generic HDMI driver
  OMAPDSS: HDMI: Create function to enable HDMI audio
  ASoC: OMAP: HDMI: Correct signature of ASoC functions
  ASoC: OMAP: HDMI: Introduce driver data for audio codec
  grvga: fix section mismatch warnings
  video: s3c-fb: Don't keep device runtime active when open
  video: s3c-fb: Hold runtime PM references when touching registers
  video: s3c-fb: Take a runtime PM reference when unblanked
  video: s3c-fb: Disable runtime PM in error paths from probe
  video: s3c-fb: Use s3c_fb_enable() to enable the framebuffer
  video: s3c-fb: Make runtime PM functional again
  drivers/video: fsl-diu-fb: merge fsl_diu_alloc() into map_video_memory()
  drivers/video: fsl-diu-fb: add default platform ops functions
  drivers/video: fsl-diu-fb: remove broken reference count enabling the display
  ...
2012-01-14 15:11:19 -08:00
Mythri P K 9a9016832d OMAPDSS: HDMI: Disable DDC internal pull up
Disables the internal pull resistor for SDA and SCL which are enabled by
default, as there are external pull up's in 4460 and 4430 ES2.3
SDP, Blaze and Panda Boards, It is done to avoid the EDID read failure.

Signed-off-by: Ricardo Salveti de Araujo <ricardo.salveti@linaro.org>
Signed-off-by: Mythri P K <mythripk@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-01-05 10:34:50 +02:00
Mythri P K ee9dfd82ff OMAPDSS: HDMI: Move duplicate code from boardfile
Move duplicate HDMI mux_init code from omap4 and panda board file
to display file.

Signed-off-by: Mythri P K <mythripk@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-01-05 10:34:49 +02:00