Commit Graph

120 Commits

Author SHA1 Message Date
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
Maxime Ripard 3b52634f0b ARM: sunxi: Add basic support for Allwinner A1x SoCs
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Stefan Roese <sr@denx.de>
2012-11-16 21:56:51 +01:00
Tomi Valkeinen 0049fb2603 OMAPFB: use dma_alloc_attrs to allocate memory
Use dma_alloc_attrs to allocate memory instead of omap specific vram
allocator. After this we can remove the omap vram allocator.

There are some downsides to this change:

1) dma_alloc_attrs doesn't let us allocate at certain physical address.
However, this should not be a problem as this feature of vram allocator
is only used when reserving the framebuffer that was initialized by the
bootloader, and we don't currently support "passing" a framebuffer from
the bootloader to the kernel anyway.

2) dma_alloc_attrs, as of now, always ioremaps the allocated area, and
we don't need the ioremap when using VRFB. This patch uses
DMA_ATTR_NO_KERNEL_MAPPING for the allocation, but the flag is currently
not operational.

3) OMAPFB_GET_VRAM_INFO ioctl cannot return real values anymore. I
changed the ioctl to return 64M for all the values, which, I hope, the
applications will interpret as "there's enough vram".

4) "vram" kernel parameter to define how much ram to reserve for video
use no longer works. The user needs to enable CMA and use "cma"
parameter.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-11-13 09:52:24 +02:00
Russell King a0f0dd57f4 Merge branch 'fixes' into for-linus
Conflicts:
	arch/arm/kernel/smp.c
2012-10-11 10:55:04 +01:00
Linus Torvalds b9541d94bc ARM: soc: documentation updates
Documentation update for Marvell SoCs, the secret decoder ring to all
 their crazy product names and numbers.
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Merge tag 'docs' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM soc documentation updates from Olof Johansson:
 "Documentation update for Marvell SoCs, the secret decoder ring to all
  their crazy product names and numbers."

* tag 'docs' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  arm: add documentation describing Marvell families of SoC
2012-10-01 18:56:31 -07:00
Olof Johansson 928487a1ce Merge branch 'samsung/cleanup' into next/cleanup
From Kukjin Kim:

Here, there are cleanup patches for Samsung v3.7 and most of them are
related to cleanup Samsung specific gpio API.

* samsung/cleanup:
  gpio: samsung: Update documentation
  ARM: S3C24XX: Use module_platform_driver macro in mach-osiris-dvs.c
  ARM: S3C24XX: Use module_platform_driver macro in h1940-bluetooth.c
  gpio-samsung: Remove now unused s3c2410_gpio* API
  ARM: S3C24XX: Remove obsolete GPIO API declarations
  ARM: S3C24XX: Convert users of s3c2410_gpio_setpin to gpiolib API
  ARM: EXYNOS: cleanup unused code related to GPS
2012-09-20 16:35:21 -07:00
Dave Martin 6a6d55c38c ARM: virt: Update documentation for hyp mode entry support
Document the possibility of the kernel being entered in HYP mode.

Signed-off-by: Dave Martin <dave.martin@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2012-09-19 08:32:51 +01:00
Sylwester Nawrocki 98025c8c75 gpio: samsung: Update documentation
Update Samsung GPIO API documentation to reflect removal of
the s3c24xx specific gpio API. While at it, fix some typos.

The notes on conversion from s3c2410_* functions to the gpiolib
API are left here just in case there is any out of tree code that
still needs to be converted.

Signed-off-by: Sylwester Nawrocki <sylvester.nawrocki@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-09-07 06:40:29 +09:00
Arnd Bergmann 19ec6caca2 Merge branch 'cleanup/io-pci' into next/cleanups
From Rob Herring <robherring2@gmail.com>:

This is the 2nd part of mach/io.h removals. This series removes io.h on
platforms with PCI by creating a fixed virtual I/O mapping and a common
__io() macro.

This version has changed a bit to accommodate Tegra converting its PCIe
host to a platform driver. Now the virtual space is only reserved during
early boot before .map_io() is called. The mapping is not created until
calling pci_ioremap_io which can be done at any point after vmalloc is
initialized.

I've gone back to fixed 64K windows for each PCI bus. This allows
removing all the i/o resource setup from the individually platforms and
placing it within the common ARM PCI code.

I've only tested versatilepb under qemu (with the model hacked up to
actually enable i/o space), so any testing is appreciated. iop3xx and
mv78xx0 have some risk of breaking as the PCI bus addresses are moved
to 0 from matching the cpu host bus addesss.

* cleanup/io-pci:
  ARM: iop3xx: use fixed PCI i/o mapping
  ARM: mv78xx0: use fixed pci i/o mapping
  ARM: iop13xx: use fixed PCI i/o mapping
  iop13xx: use more regular PCI I/O space handling
  ARM: orion5x: use fixed PCI i/o mapping
  ARM: kirkwood: use fixed PCI i/o mapping
  ARM: dove: use fixed PCI i/o mapping
  ARM: footbridge: use fixed PCI i/o mapping
  ARM: shark: use fixed PCI i/o mapping
  ARM: integrator: remove trailing whitespace on pci_v3.c
  ARM: integrator: use fixed PCI i/o mapping
  ARM: tegra: use fixed PCI i/o mapping
  ARM: versatile: use fixed PCI i/o mapping
  ARM: move PCI i/o resource setup into common code
  ARM: Add fixed PCI i/o mapping
  i2c: iop3xx: use standard gpiolib functions
  i2c: iop3xx: clean-up trailing whitespace

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-08-13 16:56:29 +02:00
Thomas Petazzoni 9ee99783d7 arm: add documentation describing Marvell families of SoC
As stated in the introduction of the document, the families of ARM
SoCs at Marvell are very complicated, and it is difficult for
newcomers to understand the organization of this SoC family and how it
relates to the Linux kernel support for those hardware platforms.

This document is only at RFC stage for now, it requires reviews and
comments from the Marvell maintainers, the PXA maintainers and the MMP
maintainers. For correctness of course, but also to add any other
information that would be useful. For example, one of the thing that
wasn't clear how to detail in the documentation is how the SoCs relate
to each other in terms of hardware IP blocks. For example, most of the
Kirkwood/Dove/Armada 370-XP/etc. hardware IPs (I2C, SPI, USB, SATA,
etc.) are identical, while the PXA and MMP families are completely
separate.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Gregory Clement <gregory.clement@free-electrons.com>
Cc: Eric Miao <eric.y.miao@gmail.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: Nicolas Pitre <nico@fluxnic.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Olof Johansson <olof@lixom.net>
Cc: Lior Amsalem <alior@marvell.com>
Cc: Maen Suleiman <maen@marvell.com>
Cc: Tawfik Bayouk <tawfik@marvell.com>
Cc: Shadi Ammouri <shadi@marvell.com>
Cc: Eran Ben-Avi <benavi@marvell.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>

---
Changes from v3:
 * Add Arnd Bergmann Acked-by.

Changes from v2:
 * Mention the plat-<foo> directory that each SoC family is using.
 * Take into account Eric Miao's comments on the PXA/MMP families: add
   PXA21x/PXA25x/PXA26x to the list, mention which processors are
   AP+CP or AP only. Clarify the comments on which SoCs were designed
   by Intel, which ones were designed by Marvell after the acquisition
   of the XScale family.
 * Mention long-term plans regarding the support of those SoC
   families.

Changes from v1:
 * Added publicly available datasheet for the 88F5182 pointed by
   Andrew Lunn.
 * Added publicly available datasheet for the 88F5281 found with
   Google searches
 * Mentionned the Feroceon core name where appropriate, and Sheeva
   where appropriate
 * Fixed the core names for PXA930, PXA935 and PXA955 after comments
   from Arnd Bergmann. Wikipedia is mistakenly suggesting that PXA93x
   are Sheeva-based, and there isn't much information available on the
   web about the 955.
2012-08-11 08:52:32 +02:00
Rob Herring c279443709 ARM: Add fixed PCI i/o mapping
This adds a fixed virtual mapping for PCI i/o addresses. The mapping is
located at the last 2MB of vmalloc region (0xfee00000-0xff000000). 2MB
is used to align with PMD size, but IO_SPACE_LIMIT is 1MB. The space
is reserved after .map_io and can be mapped at any time later with
pci_ioremap_io. Platforms which need early i/o mapping (e.g. for vga
console) can call pci_map_io_early in their .map_io function.

This has changed completely from the 1st implementation which only
supported creating the static mapping at .map_io.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Russell King <linux@arm.linux.org.uk>
Acked-by: Nicolas Pitre <nico@linaro.org>
2012-07-25 09:26:42 -05:00
Linus Torvalds d14b7a419a Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial tree from Jiri Kosina:
 "Trivial updates all over the place as usual."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (29 commits)
  Fix typo in include/linux/clk.h .
  pci: hotplug: Fix typo in pci
  iommu: Fix typo in iommu
  video: Fix typo in drivers/video
  Documentation: Add newline at end-of-file to files lacking one
  arm,unicore32: Remove obsolete "select MISC_DEVICES"
  module.c: spelling s/postition/position/g
  cpufreq: Fix typo in cpufreq driver
  trivial: typo in comment in mksysmap
  mach-omap2: Fix typo in debug message and comment
  scsi: aha152x: Fix sparse warning and make printing pointer address more portable.
  Change email address for Steve Glendinning
  Btrfs: fix typo in convert_extent_bit
  via: Remove bogus if check
  netprio_cgroup.c: fix comment typo
  backlight: fix memory leak on obscure error path
  Documentation: asus-laptop.txt references an obsolete Kconfig item
  Documentation: ManagementStyle: fixed typo
  mm/vmscan: cleanup comment error in balance_pgdat
  mm: cleanup on the comments of zone_reclaim_stat
  ...
2012-07-24 13:34:56 -07:00
Jesper Juhl f9028317b2 Documentation: Add newline at end-of-file to files lacking one
This patch simply adds a newline character at end-of-file to those
files in Documentation/ that currently lack one.

This is done for a few different reasons:

A) It's rather annoying when you do "cat some_file.txt" that your
   prompt/cursor ends up at the end of the last line of output rather
   than on a new line.

B) Some tools that process files line-by-line may get confused by the
   lack of a newline on the last line.

C) The "\ No newline at end of file" line in diffs annoys me for some
   reason.

So, let's just add the missing newline once and for all.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-07-20 23:10:28 +02:00
Viresh Kumar 10d8935f46 Viresh has moved
viresh.kumar@st.com email-id doesn't exist anymore as I have left the
company.  Replace ST's id with viresh.linux@gmail.com.

It also updates .mailmap file to fix address for 'git shortlog'

Signed-off-by: Viresh Kumar <viresh.linux@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-06-20 14:39:36 -07:00
Linus Torvalds 804ce9866d fbdev updates for 3.5
It includes:
 - driver for AUO-K1900 and AUO-K1901 epaper controller
 - large updates for OMAP (e.g. decouple HDMI audio and video)
 - some updates for Exynos and SH Mobile
 - various other small fixes and cleanups
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Merge tag 'fbdev-updates-for-3.5' of git://github.com/schandinat/linux-2.6

Pull fbdev updates from Florian Tobias Schandinat:
 - driver for AUO-K1900 and AUO-K1901 epaper controller
 - large updates for OMAP (e.g. decouple HDMI audio and video)
 - some updates for Exynos and SH Mobile
 - various other small fixes and cleanups

* tag 'fbdev-updates-for-3.5' of git://github.com/schandinat/linux-2.6: (130 commits)
  video: bfin_adv7393fb: Fix cleanup code
  video: exynos_dp: reduce delay time when configuring video setting
  video: exynos_dp: move sw reset prioir to enabling sw defined function
  video: exynos_dp: use devm_ functions
  fb: handle NULL pointers in framebuffer release
  OMAPDSS: HDMI: OMAP4: Update IRQ flags for the HPD IRQ request
  OMAPDSS: Apply VENC timings even if panel is disabled
  OMAPDSS: VENC/DISPC: Delay dividing Y resolution for managers connected to VENC
  OMAPDSS: DISPC: Support rotation through TILER
  OMAPDSS: VRFB: remove compiler warnings when CONFIG_BUG=n
  OMAPFB: remove compiler warnings when CONFIG_BUG=n
  OMAPDSS: remove compiler warnings when CONFIG_BUG=n
  OMAPDSS: DISPC: fix usage of dispc_ovl_set_accu_uv
  OMAPDSS: use DSI_FIFO_BUG workaround only for manual update displays
  OMAPDSS: DSI: Support command mode interleaving during video mode blanking periods
  OMAPDSS: DISPC: Update Accumulator configuration for chroma plane
  drivers/video: fsl-diu-fb: don't initialize the THRESHOLDS registers
  video: exynos mipi dsi: support reverse panel type
  video: exynos mipi dsi: Properly interpret the interrupt source flags
  video: exynos mipi dsi: Avoid races in probe()
  ...
2012-06-01 16:57:51 -07:00
Linus Torvalds 30b842889e arm-soc: soc specific changes, part 2
This adds support for the spear13xx platform, which has first been under
 review a long time ago and finally been completed after generic spear
 work has gone into the clock, dt and pinctrl branches.
 
 Also a number of updates for the samsung socs are part of this branch.
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Merge tag 'soc2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull arm-soc: soc specific changes (part 2) from Olof Johansson:
 "This adds support for the spear13xx platform, which has first been
  under review a long time ago and finally been completed after generic
  spear work has gone into the clock, dt and pinctrl branches.

  Also a number of updates for the samsung socs are part of this branch."

Fix up trivial conflicts in drivers/gpio/gpio-samsung.c that look much
worse than they are: the exonys5 init code was refactored in commit
fd454997d6 ("gpio: samsung: refactor gpiolib init for exynos4/5"), and
then commit f10590c983 ("ARM: EXYNOS: add GPC4 bank instance") added a
new gpio chip define and did tiny updates to the init code.

So the conflict diff looks like hell, but it's actually a fairly simple
change.

* tag 'soc2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (34 commits)
  ARM: exynos: fix building with CONFIG_OF disabled
  ARM: EXYNOS: Add AUXDATA for i2c controllers
  ARM: dts: Update device tree source files for EXYNOS5250
  ARM: EXYNOS: Add device tree support for interrupt combiner
  ARM: EXYNOS: Add irq_domain support for interrupt combiner
  ARM: EXYNOS: Remove a new bus_type instance for EXYNOS5
  ARM: EXYNOS: update irqs for EXYNOS5250 SoC
  ARM: EXYNOS: Add pre-divider and fout mux clocks for bpll and mpll
  ARM: EXYNOS: add GPC4 bank instance
  ARM: EXYNOS: Redefine IRQ_MCT_L0,1 definition
  ARM: EXYNOS: Modify the GIC physical address for static io-mapping
  ARM: EXYNOS: Add watchdog timer clock instance
  pinctrl: SPEAr1310: Fix pin numbers for clcd_high_res
  SPEAr: Update MAINTAINERS and Documentation
  SPEAr13xx: Add defconfig
  SPEAr13xx: Add compilation support
  SPEAr13xx: Add dts and dtsi files
  pinctrl: Add SPEAr13xx pinctrl drivers
  pinctrl: SPEAr: Create macro for declaring GPIO PINS
  SPEAr13xx: Add common clock framework support
  ...
2012-05-26 13:05:55 -07:00
Linus Torvalds b324c67d48 arm-soc: device tree conversions, part 1
The spear3xx, lpc32xx, shmobile and mmp platforms are joining the game of
 booting using device trees, which is a great step forward for them. at91
 and spear have pretty much completed this process with a huge amount of
 work being put into at91. The other platforms are continuing the process.
 
 We finally start to see the payback on this investment, as new machines
 are getting supported purely by adding a .dts source file that can be
 completely independent of the kernel source.
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Merge tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull device tree conversions for arm-soc, part 1, from Olof Johansson:
 "The spear3xx, lpc32xx, shmobile and mmp platforms are joining the game
  of booting using device trees, which is a great step forward for them.
  at91 and spear have pretty much completed this process with a huge
  amount of work being put into at91.  The other platforms are
  continuing the process.

  We finally start to see the payback on this investment, as new
  machines are getting supported purely by adding a .dts source file
  that can be completely independent of the kernel source."

Fix up trivial conflict in arch/arm/Kconfig

* tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (83 commits)
  ARM: at91: Add ADC driver to at91sam9260/at91sam9g20 dtsi files
  arm/dts: omap4-panda: Add LEDs support
  arm/dts: omap4-sdp: Add LEDs support
  arm/dts: twl4030: Add twl4030-gpio node
  OMAP4: devices: Do not create mcpdm device if the dtb has been provided
  OMAP4: devices: Do not create dmic device if the dtb has been provided
  Documentation: update docs for mmp dt
  ARM: dts: refresh dts file for arch mmp
  ARM: mmp: support pxa910 with device tree
  ARM: mmp: support mmp2 with device tree
  gpio: pxa: parse gpio from DTS file
  ARM: mmp: support DT in timer
  ARM: mmp: support DT in irq
  ARM: mmp: append CONFIG_MACH_MMP2_DT
  ARM: mmp: fix build issue on mmp with device tree
  ARM: ux500: Enable PRCMU Timer 4 (clocksource) for Device Tree
  ARM: ux500: Disable SMSC911x platform code registration when DT is enabled
  ARM: ux500: Fork cpu-db8500 platform_devs for sequential DT enablement
  ARM: ux500: Do not attempt to register non-existent i2c devices on Snowball
  ARM: SPEAr3xx: Correct keyboard data passed from DT
  ...
2012-05-22 09:30:52 -07:00
Viresh Kumar 71e09a9e7d SPEAr: Update MAINTAINERS and Documentation
This patchset updates MAINTAINERS files, makes shiraz as second Maintainer for
SPEAr SoCs.

It also updates Documentation mostly for SPEAr13xx.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
2012-05-14 17:34:11 +02:00
Ricardo Neri 9c0b842036 OMAPDSS: Provide an interface for audio support
There exist several display technologies and standards that support audio as
well. Hence, it is relevant to update the DSS device driver to provide an audio
interface that may be used by an audio driver or any other driver interested in
the functionality.

The audio_enable function is intended to prepare the relevant
IP for playback (e.g., enabling an audio FIFO, taking in/out of reset
some IP, enabling companion chips, etc). It is intended to be called before
audio_start. The audio_disable function performs the reverse operation and is
intended to be called after audio_stop.

While a given DSS device driver may support audio, it is possible that for
certain configurations audio is not supported (e.g., an HDMI display using a
VESA video timing). The audio_supported function is intended to query whether
the current configuration of the display supports audio.

The audio_config function is intended to configure all the relevant audio
parameters of the display. In order to make the function independent of any
specific DSS device driver, a struct omap_dss_audio is defined. Its purpose
is to contain all the required parameters for audio configuration. At the
moment, such structure contains pointers to IEC-60958 channel status word and
CEA-861 audio infoframe structures. This should be enough to support HDMI and
DisplayPort, as both are based on CEA-861 and IEC-60958. The omap_dss_audio
structure may be extended in the future if required.

The audio_enable/disable, audio_config and audio_supported functions could be
implemented as functions that may sleep. Hence, they should not be called
while holding a spinlock or a readlock.

The audio_start/audio_stop function is intended to effectively start/stop audio
playback after the configuration has taken place. These functions are designed
to be used in an atomic context. Hence, audio_start should return quickly and be
called only after all the needed resources for audio playback (audio FIFOs,
DMA channels, companion chips, etc) have been enabled to begin data transfers.
audio_stop is designed to only stop the audio transfers. The resources used
for playback are released using audio_disable.

A new enum omap_dss_audio_state is introduced to help the implementations of
the interface to keep track of the audio state. The initial state is _DISABLED;
then, the state transitions to _CONFIGURED, and then, when it is ready to
play audio, to _ENABLED. The state _PLAYING is used when the audio is being
rendered.

Signed-off-by: Ricardo Neri <ricardo.neri@ti.com>
2012-05-11 15:13:50 +03:00
Grazvydas Ignotas 0aca3c63e0 OMAPDSS: VENC: allow switching venc output type at runtime
VENC output type (composite/svideo) doesn't have to be fixed by board
wiring, it is possible to also provide composite signal through svideo
luminance connector (software enabled), which is what pandora does.

Having to recompile the kernel for users who have TV connector types
that don't match default board setting is very inconvenient, especially
for users of a consumer device, so add support for switching VENC output
type at runtime over a new sysfs file output_type.

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-05-11 14:44:13 +03:00
Viresh Kumar c5fa4fdcdb ARM: SPEAr3xx: Add device-tree support to SPEAr3xx architecture
This patch adds a generic target for SPEAr3xx machines that can be configured
via the device-tree. Currently the following devices are supported via the
devicetree:

- VIC interrupts
- PL011 UART
- PL061 GPIO
- PL110 CLCD
- SP805 WDT
- Synopsys DW I2C
- Synopsys DW ethernet
- ST FSMC-NAND
- ST SPEAR-SMI
- ST SPEAR-KEYBOARD
- ST SPEAR-RTC
- ARASAN SDHCI-SPEAR
- SPEAR-EHCI
- SPEAR-OHCI

Other peripheral devices will follow in later patches.

This also removes IO_ADDRESS macro and creates 16 MB static mappings instead of
4K for individual peripherals. This is done to have efficient TLB lookup for any
I/O windows that are located closely together. ioremap() on this range will
return this mapping only instead of creating another.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
2012-04-22 22:41:35 +02:00
Rob Herring c65f2abf54 ARM: remove ixp23xx and ixp2000 platforms
ixp2xxx platforms have had no real changes since ~2006 and the maintainer
has said on irc that they can be removed:

13:05 < nico> do you still care about ixp2000?
13:22 < lennert> not really, no
13:58 < nico> do you think we could remove it from the kernel tree?
14:01 < lennert> go for it, and remove ixp23xx too while you're at it

Removing will help simplify ARM consolidation in general and PCI re-work
specifically.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>
2012-04-06 08:26:18 -05:00
Masanari Iida 40e47125e6 Documentation: Fix multiple typo in Documentation
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-03-07 16:08:24 +01:00
Nicolas Pitre 0536bdf33f ARM: move iotable mappings within the vmalloc region
In order to remove the build time variation between different SOCs with
regards to VMALLOC_END, the iotable mappings are now allocated inside
the vmalloc region.  This allows for VMALLOC_END to be identical across
all machines.

The value for VMALLOC_END is now set to 0xff000000 which is right where
the consistent DMA area starts.

To accommodate all static mappings on machines with possible highmem usage,
the default vmalloc area size is changed to 240 MB so that VMALLOC_START
is no higher than 0xf0000000 by default.

Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Tested-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Kevin Hilman <khilman@ti.com>
Tested-by: Jamie Iles <jamie@jamieiles.com>
2011-11-26 19:21:26 -05:00
Linus Torvalds 4b478cedcd Merge branch 'next/deletion' of git+ssh://master.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc
* 'next/deletion' of git+ssh://master.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc:
  ARM: mach-loki: delete
  ARM: mach-s3c2400: delete
  ARM: mach-s3c24a0: delete
2011-07-25 12:43:28 -07:00
Russell King 3ad55155b2 Merge branch 'devel-stable' into for-next
Conflicts:
	arch/arm/kernel/entry-armv.S
2011-07-22 23:09:07 +01:00
Dave Martin 540b573875 ARM: 6999/1: head, zImage: Always Enter the kernel in ARM state
Currently, the documented kernel entry requirements are not
explicit about whether the kernel should be entered in ARM or
Thumb, leading to an ambiguitity about how to enter Thumb-2
kernels.  As a result, the kernel is reliant on the zImage
decompressor to enter the kernel proper in the correct instruction
set state.

This patch changes the boot entry protocol for head.S and Image to
be the same as for zImage: in all cases, the kernel is now entered
in ARM.

Documentation/arm/Booting is updated to reflect this new policy.

A different rule will be needed for Cortex-M class CPUs as and when
support for those lands in mainline, since these CPUs don't support
the ARM instruction set at all: a note is added to the effect that
the kernel must be entered in Thumb on such systems.

Signed-off-by: Dave Martin <dave.martin@linaro.org>
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-07-19 12:00:53 +01:00
Nicolas Pitre 632b7cf6c0 ARM: mach-s3c2400: delete
On Tue, 28 Jun 2011, Ben Dooks wrote:

> On Tue, Jun 28, 2011 at 11:22:57PM +0200, Arnd Bergmann wrote:
>
> > On a related note, what about mach-s3c2400? It seems to be even more
> > incomplete.
>
> Probably the same fate awaits that. It is so old that there's little
> incentive to do anything with it.

So out it goes as well.

The PORT_S3C2400 definition in include/linux/serial_core.h is left there
to prevent a reuse of the same number for another port type.

Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2011-07-18 10:59:26 -04:00
Simon Horman 090ab3ff8e ARM: 6886/1: mmc, Add zboot from eSD support for SuperH Mobile ARM
This allows a ROM-able zImage to be written to eSD and for SuperH Mobile
ARM to boot directly from the SDHI hardware block.

This is achieved by the MaskROM loading the first portion of the image into
MERAM and then jumping to it.  This portion contains loader code which
copies the entire image to SDRAM and jumps to it. From there the zImage
boot code proceeds as normal, uncompressing the image into its final
location and then jumping to it.

Cc: Paul Mundt <lethal@linux-sh.org>
Acked-by: Magnus Damm <magnus.damm@gmail.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-06-29 10:00:52 +01:00
Nicolas Pitre 40fb79c8a8 ARM: add a kuser_cmpxchg64 user space helper
Some user space applications are designed around the ability to perform
atomic operations on 64 bit values.  Since this is natively possible
only with ARMv6k and above, let's provide a new kuser helper to perform
the operation with kernel supervision on pre ARMv6k hardware.

Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Tested-by: Dave Martin <dave.martin@linaro.org>
2011-06-28 15:47:47 -04:00
Nicolas Pitre 37b8304642 ARM: kuser: move interface documentation out of the source code
Digging into some assembly file in order to get information about the
kuser helpers is not that convivial.  Let's move that information to
a better formatted file in Documentation/arm/ and improve on it a bit.

Thanks to Dave Martin <dave.martin@linaro.org> for the initial cleanup and
clarifications.

Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Acked-by: Dave Martin <dave.martin@linaro.org>
2011-06-20 10:49:24 -04:00
Russell King 586893ebc4 Merge branch 'for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into devel-stable
Conflicts:
	arch/arm/Kconfig
	arch/arm/mach-exynos4/mach-nuri.c
2011-05-25 21:47:48 +01:00
Grant Likely ede338f4ce dt: add documentation of ARM dt boot interface
v6: typo fixes
v5: clarified that dtb should be aligned on a 64 bit boundary in RAM.
v3: added details to Documentation/arm/Booting

Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-05-23 09:30:20 -06:00
Kukjin Kim a73ddc61e8 ARM: S5P6442: Removing ARCH_S5P6442
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-05-12 08:10:53 +09:00
Lucas De Marchi 25985edced Fix common misspellings
Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-31 11:26:23 -03:00
Linus Torvalds 63a93699c6 Merge branch 'remove' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'remove' of master.kernel.org:/home/rmk/linux-2.6-arm:
  ARM: 6629/2: aaec2000: remove support for mach-aaec2000
  ARM: lh7a40x: remove unmaintained platform support

Fix up trivial conflicts in
 - arch/arm/mach-{aaec2000,lh7a40x}/include/mach/memory.h (removed)
 - drivers/usb/gadget/Kconfig (USB_[GADGET_]LH7A40X removed, others added)
2011-03-16 19:05:40 -07:00
Simon Horman f45b114991 ARM: 6617/1: mmc, Add zboot from MMC support for SuperH Mobile ARM
This allows a ROM-able zImage to be written to MMC and
for SuperH Mobile ARM to boot directly from the MMCIF
hardware block.

This is achieved by the MaskROM loading the first portion
of the image into MERAM and then jumping to it. This portion
contains loader code which copies the entire image to SDRAM
and jumps to it. From there the zImage boot code proceeds
as normal, uncompressing the image into its final location
and then jumping to it.

Cc: Magnus Damm <magnus.damm@gmail.com>

Russell, please consider merging this for 2.6.38.

This patch depends on:
* "mmc, sh: Move MMCIF_PROGRESS_* into sh_mmcif.h"
  which will be merged though Paul Mundt's rmobile sh-2.6.
  The absence of this patch will break the build if
  the (new) CONFIG_ZBOOT_ROM_MMCIF option is set.
  There are no subtle side-effects.

v2:
Addressed comments by Magnus Damm
* Fix copyright in vrl4.c
* Fix use of #define CONFIG_ZBOOT_ROM_MMCIF in mmcif-sh7372.c
* Initialise LED GPIO lines in head-ap4evb.txt instead of mmcif-sh7372.c
  as this is considered board-specific.

v3:
Addressed comments made in person by Magnus Damm
* Move mmcif_loader to be earlier in the image and
  reduce the number of blocks of boot program loaded by the MaskRom
  from 40 to 8 accordingly.
* Move LED GPIO initialisation into mmcif_progress_init
  - This leaves the partner jet script unbloated
Other
* inline mmcif_update_progress so it is a static inline in a header file

v4:
* Use htole16() and htole32() in v4rl.c to ensure
  that the output is little endian

v5:
Addressed comments by Russell King
* Simplify assembly code
* Jump to code rather than an address <- bug fix
* Use (void __iomem *) as appropriate
Roll in mackerel support
* This was previously a separate patch, only because of the order
  in which this code was developed
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-01-25 15:06:52 +00:00
Russell King 82e6923e18 ARM: lh7a40x: remove unmaintained platform support
lh7a40x has only been receiving updates for updates to generic code.
The last involvement from the maintainer according to the git logs was
in 2006.  As such, it is a maintainence burden with no benefit.

This gets rid of two defconfigs.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-01-24 19:05:19 +00:00
Linus Torvalds 01539ba2a7 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: (243 commits)
  omap2: Make OMAP2PLUS select OMAP_DM_TIMER
  OMAP4: hwmod data: Fix alignment and end of line in structurefields
  OMAP4: hwmod data: Move the DMA structures
  OMAP4: hwmod data: Move the smartreflex structures
  OMAP4: hwmod data: Fix missing SIDLE_SMART_WKUP in smartreflexsysc
  arm: omap: tusb6010: add name for MUSB IRQ
  arm: omap: craneboard: Add USB EHCI support
  omap2+: Initialize serial port for dynamic remuxing for n8x0
  omap2+: Add struct omap_board_data and use it for platform level serial init
  omap2+: Allow hwmod state changes to mux pads based on the state changes
  omap2+: Add support for hwmod specific muxing of devices
  omap2+: Add omap_mux_get_by_name
  OMAP2: PM: fix compile error when !CONFIG_SUSPEND
  MAINTAINERS: OMAP: hwmod: update hwmod code, data maintainership
  OMAP4: Smartreflex framework extensions
  OMAP4: hwmod: Add inital data for smartreflex modules.
  OMAP4: PM: Program correct init voltages for scalable VDDs
  OMAP4: Adding voltage driver support
  OMAP4: Register voltage PMIC parameters with the voltage layer
  OMAP3: PM: Program correct init voltages for VDD1 and VDD2
  ...

Fix up trivial conflict in arch/arm/plat-omap/Kconfig
2011-01-06 19:13:58 -08:00
Russell King 4ec3eb1363 Merge branch 'smp' into misc
Conflicts:
	arch/arm/kernel/entry-armv.S
	arch/arm/mm/ioremap.c
2011-01-06 22:32:03 +00:00
Nishanth Menon fd1478cd61 omap: opp: add OMAP3 OPP table data and common init
Add OPP data for OMAP34xx and OMAP36xx and initialization functions
to populate OPP tables based on current SoC.
introduce an OMAP generic opp initialization routine which OMAP3
and OMAP4+ SoCs can use to register their OPP definitions.

Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2010-12-21 14:30:40 -08:00
Tomi Valkeinen 0bf3d5a0fb OMAP: DSS: Fix documentation regarding 'vram' kernel parameter
The DSS documentation didn't mention the option to give the VRAM start
address.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-11-10 20:51:14 +09:00
Leif Lindholm 64d2dc384e ARM: 6396/1: Add SWP/SWPB emulation for ARMv7 processors
The SWP instruction was deprecated in the ARMv6 architecture,
superseded by the LDREX/STREX family of instructions for
load-linked/store-conditional operations. The ARMv7 multiprocessing
extensions mandate that SWP/SWPB instructions are treated as undefined
from reset, with the ability to enable them through the System Control
Register SW bit.

This patch adds the alternative solution to emulate the SWP and SWPB
instructions using LDREX/STREX sequences, and log statistics to
/proc/cpu/swp_emulation. To correctly deal with copy-on-write, it also
modifies cpu_v7_set_pte_ext to change the mappings to priviliged RO when
user RO.

Signed-off-by: Leif Lindholm <leif.lindholm@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Kirill A. Shutemov <kirill@shutemov.name>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-11-04 15:45:24 +00:00
Linus Torvalds 229aebb873 Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits)
  Update broken web addresses in arch directory.
  Update broken web addresses in the kernel.
  Revert "drivers/usb: Remove unnecessary return's from void functions" for musb gadget
  Revert "Fix typo: configuation => configuration" partially
  ida: document IDA_BITMAP_LONGS calculation
  ext2: fix a typo on comment in ext2/inode.c
  drivers/scsi: Remove unnecessary casts of private_data
  drivers/s390: Remove unnecessary casts of private_data
  net/sunrpc/rpc_pipe.c: Remove unnecessary casts of private_data
  drivers/infiniband: Remove unnecessary casts of private_data
  drivers/gpu/drm: Remove unnecessary casts of private_data
  kernel/pm_qos_params.c: Remove unnecessary casts of private_data
  fs/ecryptfs: Remove unnecessary casts of private_data
  fs/seq_file.c: Remove unnecessary casts of private_data
  arm: uengine.c: remove C99 comments
  arm: scoop.c: remove C99 comments
  Fix typo configue => configure in comments
  Fix typo: configuation => configuration
  Fix typo interrest[ing|ed] => interest[ing|ed]
  Fix various typos of valid in comments
  ...

Fix up trivial conflicts in:
	drivers/char/ipmi/ipmi_si_intf.c
	drivers/usb/gadget/rndis.c
	net/irda/irnet/irnet_ppp.c
2010-10-24 13:41:39 -07:00
Gregory Bean 70816e2ca5 msm: documentation: add gpiomux documentation.
Signed-off-by: Gregory Bean <gbean@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
2010-10-06 09:01:16 -07:00
Stefan Weil 429d646d9a Doc: Fix spelling
Legned -> Legend
mainatined -> maintained

Legend is now Lenovo, so more fixes (text and url)
would be possible, too.

Cc: Jiri Kosina <trivial@kernel.org>
Cc: linux-doc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-08-10 14:22:39 +02:00
Justin P. Mattock 0ea6e61122 Documentation: update broken web addresses.
Below you will find an updated version from the original series bunching all patches into one big patch
updating broken web addresses that are located in Documentation/*
Some of the addresses date as far far back as 1995 etc... so searching became a bit difficult,
the best way to deal with these is to use web.archive.org to locate these addresses that are outdated.
Now there are also some addresses pointing to .spec files some are located, but some(after searching
on the companies site)where still no where to be found. In this case I just changed the address
to the company site this way the users can contact the company and they can locate them for the users.

Signed-off-by: Justin P. Mattock <justinmattock@gmail.com>
Signed-off-by: Thomas Weber <weber@corscience.de>
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Cc: Paulo Marques <pmarques@grupopie.com>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Cc: Michael Neuling <mikey@neuling.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-08-04 15:21:40 +02:00
Linus Walleij 1dbd30e989 ARM: 6225/1: make TCM allocation static and common for all archs
This changes the TCM handling so that a fixed area is reserved at
0xfffe0000-0xfffeffff for TCM. This areas is used by XScale but
XScale does not have TCM so the mechanisms are mutually exclusive.

This change is needed to make TCM detection more dynamic while
still being able to compile code into it, and is a must for the
unified ARM goals: the current TCM allocation at different places
in memory for each machine would be a nightmare if you want to
compile a single image for more than one machine with TCM so it
has to be nailed down in one place.

Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-27 10:42:38 +01:00
Ben Dooks d192baeaa7 ARM: SAMSUNG: Documentation: add documentation on GPIO code
Add some documentation in Documentation/arm/Samsung for the GPIO code
and where to look for the necessary functions. Update the S3C24XX case
as well.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-28 19:31:31 +09:00
Ben Dooks 0639b93d00 ARM: S3C24XX: Documentation: add section on gpiolib changes
Add section to the S3C24XX GPIO documentation on the recent changes
to move towards gpiolib integration.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-05-28 19:31:31 +09:00