Commit Graph

506942 Commits

Author SHA1 Message Date
Krishna Mohan Dani
189c88ced1 ASoC: rt5631: Adding Device Tree compatibility to Realtek's ALC5631/RT5631 codec driver
Signed-off-by: Krishna Mohan Dani <krishna.md@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-13 18:08:01 +00:00
Krishna Mohan Dani
86707f7fec ASoC: rt5631: Adding the description of the codec
Signed-off-by: Krishna Mohan Dani <krishna.md@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-13 18:08:00 +00:00
Krishna Mohan Dani
9e6280cd44 ASoC: rt5631: Add device tree binding documentation
Document the device tree binding for the ALC5631 codec and update vendor
specific prefix for the Realtek.

Signed-off-by: Krishna Mohan Dani <krishna.md@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-13 18:07:52 +00:00
Linus Torvalds
3b98ec4eec Merge tag 'sound-3.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
 "Things get calming down, now we have only a few fix patches: a trivial
  fix for memory leak in usb-audio, a patch for the new HD-audio PCI id,
  a device-specific mute-LED fix, and a slightly big patch to cover the
  missing COEF inits of various Realtek codecs"

* tag 'sound-3.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda - Add mute LED control for Lenovo Ideapad Z560
  ALSA: hda/realtek - Change EAPD to verb control
  ALSA: usb-audio: Fix memory leak in FTU quirk
  ALSA: hda_intel: Add DeviceIDs for Sunrise Point-LP
2014-11-13 09:57:04 -08:00
Jingoo Han
20f9ece101 PCI: spear: Remove unnecessary OOM message
The site-specific OOM messages are unnecessary, because they duplicate the
MM subsystem generic OOM message.  This patch fixes the following
checkpatch warning:

  WARNING: Possible unnecessary 'out of memory' message

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
2014-11-13 10:55:39 -07:00
Jingoo Han
cf3a9d6bae PCI: mvebu: Add a blank line after declarations
This patch fixes the following checkpatch warning:

  WARNING: Missing a blank line after declarations

[bhelgaas: drop mvebu_pcie_add_bus() change because it's going away anyway]
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
2014-11-13 10:53:02 -07:00
Jingoo Han
2c992f3779 PCI: designware: Add a blank line after declarations
This patch fixes the following checkpatch warning:

  WARNING: Missing a blank line after declarations

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-11-13 10:52:04 -07:00
Jingoo Han
bc512c5a8c PCI: exynos: Remove unnecessary return statement
This patch fixes the following checkpatch warning:

  WARNING: void function return statements are not generally useful

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-11-13 10:50:31 -07:00
Jingoo Han
d88a7ef99e PCI: imx6: Use tabs for indentation
This patch fixes the following checkpatch error:

  ERROR: code indent should use tabs where possible

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-11-13 10:48:20 -07:00
Linus Torvalds
2c54396e40 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull SELinux fixlet from James Morris:
 "WARN_ONCE() here will unnecessarily terrify users"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
  selinux: convert WARN_ONCE() to printk() in selinux_nlmsg_perm()
2014-11-13 09:46:15 -08:00
Jingoo Han
6670070742 PCI: keystone: Remove unnecessary OOM message
The site-specific OOM messages are unnecessary because they duplicate the
MM subsystem generic OOM message.  This patch fixes the following
checkpatch warning:

  WARNING: Possible unnecessary 'out of memory' message

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-11-13 10:44:02 -07:00
Linus Torvalds
911883759f Merge branch 'stable-3.18' of git://git.infradead.org/users/pcmoore/audit
Pull audit fixes from Paul Moore:
 "After he sent the initial audit pull request for 3.18, Eric asked me
  to take over the management of the audit tree, hence this pull request
  to fix a couple of problems with audit.

  As you can see below, the changes are minimal: adding some whitespace
  to a string so userspace parses it correctly, and fixing a problem
  with audit's usage of fsnotify that was causing audit watch rules to
  be lost.  Neither of these patches were very controversial on the
  mailing lists and they fix real problems, getting them into 3.18 would
  be a good thing"

* 'stable-3.18' of git://git.infradead.org/users/pcmoore/audit:
  audit: keep inode pinned
  audit: AUDIT_FEATURE_CHANGE message format missing delimiting space
2014-11-13 09:36:39 -08:00
Gavin Shan
a4acded086 PCI: Remove unused and broken to_hotplug_slot()
to_hotplug_slot() is unused and wouldn't work anyway, because struct
hotplug_slot no longer contains a struct kobject (it was removed by
f46753c5e3 ("PCI: introduce pci_slot")).

Remove to_hotplug_slot().

[bhelgaas: changelog]
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-11-13 10:35:25 -07:00
Gavin Shan
bb383e283b PCI: Make FLR and AF FLR reset warning messages different
We have same warning message for FLR and AF FLR and users can't know which
type of resets the PCI device is taking when there are pending
transactions.  Print different messages for FLR and AF FLR cases.

[bhelgaas: make code structure parallel, add "anyway" to suggest risk]
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-11-13 10:28:02 -07:00
Linus Torvalds
5a7a662cc6 Merge tag 'dm-3.18-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:

 - stable fix for dm-thin that avoids normal IO racing with discard

 - stable fix for a dm-cache related bug in dm-btree walking code that
   results from using very large fast device (eg 4T) with a very small
   cache blocksize (eg 32K) -- this is a very uncommon configuration

 - a couple fixes for dm-raid (one for stable and the other addresses a
   crash in 3.18-rc1 code)

 - stable fix for dm-thinp that addresses a very rare dm-bufio bug
   having to do with memory reclaimation (via shrinker) when using
   dm-thinp ontop of loopback devices

 - fix a leak in dm-stripe target constructor's error path

* tag 'dm-3.18-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm btree: fix a recursion depth bug in btree walking code
  dm thin: grab a virtual cell before looking up the mapping
  dm raid: fix inaccessible superblocks causing oops in configure_discard_support
  dm raid: ensure superblock's size matches device's logical block size
  dm bufio: change __GFP_IO to __GFP_FS in shrinker callbacks
  dm stripe: fix potential for leak in stripe_ctr error path
2014-11-13 09:19:20 -08:00
Duc Dang
336b5be2c5 PCI: xgene: Assign resources to bus before adding new devices
The X-Gene PCIe driver assumes pci_scan_root_bus() assigns resources as
proposed in [1].  But we dropped patch [1] because it would break some
architectures, which means the X-Gene PCIe driver is currently broken.

Add calls to scan the bus, assign resources, and add devices in the X-Gene
driver to fix this.

[bhelgaas: changelog]
[1] http://lkml.kernel.org/r/1412000971-9242-11-git-send-email-Liviu.Dudau@arm.com
Signed-off-by: Duc Dang <dhdang@apm.com>
Signed-off-by: Tanmay Inamdar <tinamdar@apm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-11-13 09:53:30 -07:00
Jingoo Han
e73044a069 PCI: dra7xx: Add __init annotation to dra7xx_add_pcie_port()
Add __init annotation to dra7xx_add_pcie_port(), because
dra7xx_add_pcie_port() is called only by dra7xx_pcie_probe() which is
marked __init.  This patch fixes a section mismatch warning:

WARNING: drivers/pci/host/built-in.o(.text.unlikely+0xcc): Section mismatch in reference from the function dra7xx_add_pcie_port() to the function .init.text:dw_pcie_host_init()

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-11-13 09:49:15 -07:00
Hans de Goede
90795c560d ARM: dts: sun6i: Add support for the status led
The Mele M9 / A1000G quad has a blue status led, add support for this.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-11-13 17:48:41 +01:00
Hans de Goede
5070ac3ee2 ARM: dts: sun6i: Add EHCI support for the M9 board
The Mele M9 / A1000G quad uses both usb-ports, one goes to an internal
usb wifi card, the other to a build-in usb-hub, so neither need their
OHCI companion controller to be enabled since the are always connected at
USB-2 speeds.

The controller which is attached to the wifi also does not need a vbus
regulator.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-11-13 17:47:06 +01:00
Jingoo Han
992e7bd2be PCI: spear: Add __init annotation to spear13xx_add_pcie_port()
Add __init annotation to spear13xx_add_pcie_port(), because
spear13xx_add_pcie_port() is called only by spear13xx_pcie_probe(), which
is marked __init.  This fixes a section mismatch warning:

WARNING: drivers/pci/host/built-in.o(.text.unlikely+0x94): Section mismatch in reference from the function spear13xx_add_pcie_port() to the function .init.text:dw_pcie_host_init()

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
2014-11-13 09:46:47 -07:00
Hans de Goede
0d716ea960 ARM: dts: sunxi: Add regulator-boot-on property to ahci-5v regulator
This avoids it getting briefly turned off between when the regulator getting
registered and the ahci driver turning it back on, thus avoiding the disk
going into emergency head park mode.

Reported-by: Bruno Prémont <bonbons@linux-vserver.org>
Tested-by: Bruno Prémont <bonbons@linux-vserver.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-11-13 17:43:42 +01:00
Jingoo Han
a9875d83a0 PCI: spear: Rename add_pcie_port(), pcie_init() to spear13xx_add_pcie_port(), etc.
The add_pcie_port() and pcie_init() functions are SPEAr13xx-specific.  Add
spear13xx prefix to avoid collision in global name space.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
2014-11-13 09:43:26 -07:00
Jingoo Han
23926c8dbd PCI: dra7xx: Rename add_pcie_port() to dra7xx_add_pcie_port()
The add_pcie_port() function is dra7xx-specific.  Add dra7xx prefix to
avoid collision in global name space.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-11-13 09:41:21 -07:00
Felipe Balbi
79005fbd3e ARM: OMAP2+: hwmod: drop unnecessary list initialization
ml->node and sl->node are currently initialized
by means of INIT_LIST_HEAD(). That initialiation
is followed by a list_add() call.

Looking at what both these functions do we will have:

	ml->node.next = &ml->node;
	ml->node.prev = &ml->node;
	oi->master->master_ports.next.prev = &ml->node;
	ml->node.next = &oi->master->master_ports.next;
	ml->node.prev = &oi->master->master_ports;
	oi->master->master_ports.next = &ml->node;

from this, it's clear that both INIT_LIST_HEAD() calls
are unnecessary and can be safely removed.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2014-11-13 09:36:55 -07:00
Minghuan Lian
62d0ff83c6 PCI: layerscape: Add Freescale Layerscape PCIe driver
Add support for Freescale Layerscape PCIe controller.  This driver re-uses
the Synopsis DesignWare core code.

[bhelgaas: add Kconfig dependency on CONFIG_ARM]
Signed-off-by: Minghuan Lian <Minghuan.Lian@freescale.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2014-11-13 09:31:52 -07:00
Tero Kristo
2e1a7b014f ARM: OMAP3+: DPLL: use determine_rate() and set_rate_and_parent()
Currently, DPLLs are hiding the gory details of switching parent
within set_rate, which confuses the common clock code and is wrong.
Fixed by applying the new determine_rate() and set_rate_and_parent()
functionality to any clock-ops previously using the broken approach.
This patch also removes the broken legacy code.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2014-11-13 09:26:45 -07:00
Tero Kristo
e3ab6013ab ARM: OMAP3: clock: add support for dpll4_set_rate_and_parent
Expand the support of omap4 per-dpll to provide set_rate_and_parent.
This is required for proper behavior of clk_change_rate with
determine_rate support.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2014-11-13 09:26:33 -07:00
Tero Kristo
83501ff0a5 ARM: OMAP4: clock: add support for determine_rate for omap4 regm4xen DPLL
Similarly to OMAP3 noncore DPLL, the implementation of this DPLL clock
type is wrong. This patch adds basic functionality for determine_rate
for this clock type which will be taken into use in the patches following
later.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2014-11-13 09:26:25 -07:00
Tero Kristo
d539efa37f ARM: OMAP3: clock: add new rate changing logic support for noncore DPLLs
Currently, DPLL code hides the re-parenting within its internals, which
is wrong. This needs to be exposed to the common clock code via
determine_rate and set_rate_and_parent APIs. This patch adds support
for these, which will be taken into use in the following patches.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2014-11-13 09:26:16 -07:00
Tero Kristo
f0d2f68a63 ARM: OMAP3: clock: use clk_features flags for omap3 DPLL4 checks
DPLL4 can't be reprogrammed on OMAP3430 ES1.0 due to hardware limitation.
Currently, the code does runtime omap_rev() check to see the chip it is
being executed on, instead, change this to use clk_features flags.
This avoids need for runtime omap_rev() checks.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2014-11-13 09:25:06 -07:00
Alexandre Courbot
221b9bf42b ARM: tegra: roth: Fix SD card VDD_IO regulator
vddio_sdmmc3 is a vdd_io, and thus should be under the vqmmc-supply
property, not vmmc-supply.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-11-13 16:58:53 +01:00
Alexandre Courbot
edbde56a25 ARM: tegra: Remove eMMC vmmc property for roth/tn7
This property was wrong and broke eMMC since commit 52221610d ("mmc:
sdhci: Improve external VDD regulator support"). Align the eMMC
properties to those of other Tegra boards.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-11-13 16:58:52 +01:00
Olof Johansson
c4574aa00e ARM: dts: tegra: move serial aliases to per-board
There are general changes pending to make the /aliases/serial* entries
number the serial ports on the system. On Tegra, so far the ports have
been just numbered dynamically as they are configured so that makes them
change.

To avoid this, add specific aliases per board to keep the old numbers.
This allows us to change the numbering by default on future SoCs while
keeping the numbering on existing boards.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-11-13 16:58:52 +01:00
Lucas Stach
121a2f6d5f ARM: tegra: Add serial port labels to Tegra124 DT
These labels will be used to provide deterministic numbering of consoles
in a later patch.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
[treding@nvidia.com: drop aliases, reword commit message]
Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-11-13 16:57:48 +01:00
Neil Zhang
5fd6690c8f arm64: ARCH_PFN_OFFSET should be unsigned long
pfns are unsigned long, but PHYS_PFN_OFFSET is phys_addr_t. This leads
to page_to_pfn() returning phys_addr_t which cause type mismatches in
some print statements.

Signed-off-by: Neil Zhang <zhangwm@marvell.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2014-11-13 15:21:40 +00:00
William Cohen
899d5933b2 Correct the race condition in aarch64_insn_patch_text_sync()
When experimenting with patches to provide kprobes support for aarch64
smp machines would hang when inserting breakpoints into kernel code.
The hangs were caused by a race condition in the code called by
aarch64_insn_patch_text_sync().  The first processor in the
aarch64_insn_patch_text_cb() function would patch the code while other
processors were still entering the function and incrementing the
cpu_count field.  This resulted in some processors never observing the
exit condition and exiting the function.  Thus, processors in the
system hung.

The first processor to enter the patching function performs the
patching and signals that the patching is complete with an increment
of the cpu_count field. When all the processors have incremented the
cpu_count field the cpu_count will be num_cpus_online()+1 and they
will return to normal execution.

Fixes: ae16480785 arm64: introduce interfaces to hotpatch kernel and module code
Signed-off-by: William Cohen <wcohen@redhat.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2014-11-13 15:21:39 +00:00
Kyle McMartin
97fc15436b arm64: __clear_user: handle exceptions on strb
ARM64 currently doesn't fix up faults on the single-byte (strb) case of
__clear_user... which means that we can cause a nasty kernel panic as an
ordinary user with any multiple PAGE_SIZE+1 read from /dev/zero.
i.e.: dd if=/dev/zero of=foo ibs=1 count=1 (or ibs=65537, etc.)

This is a pretty obscure bug in the general case since we'll only
__do_kernel_fault (since there's no extable entry for pc) if the
mmap_sem is contended. However, with CONFIG_DEBUG_VM enabled, we'll
always fault.

if (!down_read_trylock(&mm->mmap_sem)) {
	if (!user_mode(regs) && !search_exception_tables(regs->pc))
		goto no_context;
retry:
	down_read(&mm->mmap_sem);
} else {
	/*
	 * The above down_read_trylock() might have succeeded in
	 * which
	 * case, we'll have missed the might_sleep() from
	 * down_read().
	 */
	might_sleep();
	if (!user_mode(regs) && !search_exception_tables(regs->pc))
		goto no_context;
}

Fix that by adding an extable entry for the strb instruction, since it
touches user memory, similar to the other stores in __clear_user.

Signed-off-by: Kyle McMartin <kyle@redhat.com>
Reported-by: Miloš Prchlík <mprchlik@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2014-11-13 15:21:26 +00:00
Thierry Reding
7e0180e357 drm/tegra: gem: Check before freeing CMA memory
dma_free_writecombine() must not be called on a buffer that couldn't be
allocated. Check for a valid virtual address before attempting to free
the memory to avoid a crash.

Reported-by: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-11-13 16:18:34 +01:00
Thierry Reding
cb10c81fdf drm/tegra: fb: Add error codes to error messages
This helps in determining what errors happened at specifics points in
the initialization sequence.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-11-13 16:18:34 +01:00
Thierry Reding
b88f005ea3 drm/tegra: fb: Properly release GEM objects on failure
When fbdev initialization fails, make sure to unreference the GEM
objects properly. Note that we can't do this in the general error
unwinding path because ownership of the GEM object references is
transferred to the framebuffer upon creation.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-11-13 16:18:33 +01:00
Thierry Reding
9aaa0cebcb drm/tegra: Detach panel when a connector is removed
When the DRM device is torn down and the connector is removed, make sure
to detach the panel to make sure there are no dangling pointers.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-11-13 16:18:33 +01:00
Thierry Reding
1053f4dd82 drm/tegra: Plug memory leak
Free the DRM device-private memory upon driver unload to make sure the
memory doesn't leak.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-11-13 16:18:32 +01:00
Thierry Reding
71c38629d6 drm/tegra: gem: Use more consistent data types
Use size_t consistently for sizes and u32/u64 instead of uint32_t and
uint64_t.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-11-13 16:18:32 +01:00
Thierry Reding
3feaf3e5ae drm/tegra: fb: Do not destroy framebuffer
Drop a reference instead of directly calling the framebuffer .destroy()
callback at fbdev free time. This is necessary to make sure the object
isn't destroyed if anyone else still has a reference.

Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-11-13 16:18:32 +01:00
Thierry Reding
dc6057ecb3 drm/tegra: gem: dumb: pitch and size are outputs
When creating a dumb buffer object using the DRM_IOCTL_MODE_CREATE_DUMB
IOCTL, only the width, height, bpp and flags parameters are inputs. The
caller is not guaranteed to zero out or set handle, pitch and size, so
the driver must not treat these values as possible inputs.

Fixes a bug where running the Weston compositor on Tegra DRM would cause
an attempt to allocate a 3 GiB framebuffer to be allocated.

Fixes: de2ba664c3 ("gpu: host1x: drm: Add memory manager and fb")
Cc: stable@vger.kernel.org
Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-11-13 16:18:31 +01:00
Thierry Reding
8fc8f7da97 drm/tegra: Enable the hotplug interrupt only when necessary
The hotplug handling needs access to the DRM device, which only appears
at ->init() time. Disable interrupts up until that time. Similarly, when
an output is removed, disable the hotplug interrupt again because the
DRM device (and with it the hotplug infrastructure) is going away.

Also make sure to only access the DRM device if it's available. Given
the above change for the hotplug interrupt this should really never
happen, but the extra check doesn't hurt either.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-11-13 16:18:31 +01:00
Thierry Reding
c7679306a9 drm/tegra: dc: Universal plane support
This allows the primary plane and cursor to be exposed as regular
DRM/KMS planes, which is a prerequisite for atomic modesetting and gives
userspace more flexibility over controlling them.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-11-13 16:18:28 +01:00
Thierry Reding
03a6056976 drm/tegra: dc: Registers are 32 bits wide
Using an unsigned long type will cause these variables to become 64-bit
on 64-bit SoCs. In practice this should always work, but there's no need
for carrying around the additional 32 bits.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-11-13 16:17:03 +01:00
Thierry Reding
205d48edee drm/tegra: dc: Factor out DC, window and cursor commit
The sequence to commit changes to the DC, window or cursor configuration
is repetitive and can be extracted into separate functions for ease of
use.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-11-13 16:17:01 +01:00
Thierry Reding
df06b759f2 drm/tegra: Add IOMMU support
When an IOMMU device is available on the platform bus, allocate an IOMMU
domain and attach the display controllers to it. The display controllers
can then scan out non-contiguous buffers by mapping them through the
IOMMU.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-11-13 16:14:48 +01:00