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git://git.kernel.org/pub/scm/linux/kernel/git/olof/tegra-2.6 into for-next
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git://git.kernel.org/pub/scm/linux/kernel/git/rppt/linux-tegra into boards-for-next
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Initialize the PMIC voltage regulators and provide the supply map for
PCI-e clock supply. The rest of the supplies should be added together
with the drivers that use them.
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
CC: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
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* Enable TPS6586x PMIC driver
* Enable RealTek 8169 used on TrimSlice
* Allow booting with root on NFS
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Olof Johansson <olof@lixom.net>
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On Harmony board PCI-e subsystem can be enabled only after certain
voltage regulators are on. One of the regulators is an internal
regulator on the PMIC and another one is controlled by a PMIC GPIO.
Addition of the voltage control to the Harmony PCI-e initialization
allows booting of kernel with CONFIG_TEGRA_PCI even if the PMIC driver
is not loaded. In this case the PCI-e initialization will fail
gracefully intead of hanging the system.
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Olof Johansson <olof@lixom.net>
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TrimSlice has MicroSD and standard MMC/SD slots.
Register sdhci devices and enable GPIOs for MMC/SD slot.
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
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Enable new platforms and tegra drivers in tegra_defconfig. Also enable
some of the common devices several platforms, and GUID partition tables
to make it possible to boot a tegra_defconfig kernel with a ChromiumOS
filesystem.
Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Stephen Warren <swarren@nvidia.com>
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This patch adds the config infrastructure, the pinmux and basic
board setup code for PAZ00 (name of board inside the AC100/AZ).
Signed-off-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
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This is the final patch to enable audio support on Harmony. It additionally
relies on the latest ASoC branch being merged in, which provides the header
defining the gpio_base field in the WM8903 platform data.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
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This patch is the portion of the audio-related setup that relies additionally
on the latest Tegra I2C driver being merged.
* Define platform data for WM8903 audio codec
* Register WM8903 as an I2C device
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
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Register the base i2c busses on harmony. Devices coming at a later date,
but this allows for hand-probing of some of them at least.
Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Stephen Warren <swarren@nvidia.com>
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Register the base i2c devices on seaboard. A few more are pending,
but it's a start.
Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Stephen Warren <swarren@nvidia.com>
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This change includes everything required to enable audio on Harmony, except
those parts which rely on code not currently in Tegra's for-next branch, i.e.
except those parts which rely on merges of the Tegra I2C driver or latest
ASoC subsystem.
* Define GPIO names for audio-related GPIOs
* Set up platform data and platform device for ASoC machine driver
* Register audio-related platform devices
* Initialize audio-related clocks
* Correctly configure pinmux and GPIO enables for audio-related pins
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
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This ensures they're kept in sync between platform_data definitions and
the GPIO table initialization.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
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For I2S, DAS, PCM devices
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
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into for-next-i2c
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Currently tegra_pcie_init is effectively called as subsys_initcall. With
multiplatform kernel this may cause hangs on boards that don't intend to
support Tegra2 PCI-e. Ensure that TrimSlice board code initializes PCI-e
only when actually running on the TrimSlice.
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Colin Cross <ccross@android.com>
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Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Colin Cross <ccross@android.com>
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Move tegra_pcie_power_off before tegra_pcie_power_on for clean addition
of PCIE power gating
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Colin Cross <ccross@android.com>
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tegra_dma_init currently simply bails out early if any initialization fails.
This skips various data-structure initialization. In turn, this means that
tegra_dma_allocate_channel can still hand out channels. In this case, when
tegra_dma_free_channel is called, which calls tegra_dma_cancel, the walking
on ch->list will OOPS since the list's next/prev pointers may still be
NULL.
To solve this, add an explicit "initialized" flag, only set this once _init
has fully completed successfully, and have _allocate_channel refuse to hand
out channels if this is not set.
While at it, simplify _init:
* Remove redundant memsets
* Use bitmap_fill to mark all channels as in-use up-front, and remove
some now-redundant bitmap initialization loops.
* Only mark a channel as free once all channel-related initialization has
completed.
Finally, the successful exit path from _init always has ret==0, so just
hard-code that return. The error path still returns ret.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Colin Cross <ccross@android.com>
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The ASoC machine driver was written assuming my previous patch to add
complete support for these clocks, which named them cdev1/2. Rename
the clocks to match that, to avoid churn in the ASoC driver.
This rename also makes the clocks more consistent with other Tegra
clocks irrespective of any of that.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Colin Cross <ccross@android.com>
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The driver is tegra-i2s not just i2s. Rename the clocks to match, so that
clk_get_sys can look up by driver name.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Colin Cross <ccross@android.com>
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The following commit makes the Tegra APB DMA engine fail to initialize
correctly: 0cf6230af909a86f81907455eca2a5c9b8f68fe6
ARM: tegra: Move tegra_common_init to tegra_init_early
The reason is that tegra_init_early_ calls tegra_dma_init which calls
request_threaded_irq, which fails since the IRQ hasn't yet been marked
valid; that only happens in tegra_init_irq, which gets called after
tegra_init_early.
This used to work OK, since tegra_init_early was tegra_common_init, which
got called after tegra_init_irq, basically from the beginning of
tegra_harmony_init.
Solve this by converting tegra_dma_init to a postcore_initcall. This makes
it execute late enough that IRQs are marked valid, and avoids having to
add it back to every machine's init function.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Colin Cross <ccross@android.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/olof/tegra-2.6 into for-next
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This adds board support for the Seaboard eval platform and some of the
derivatives that are very similar. Since they only differ in some very
minor ways, most of the code is shared.
Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Colin Cross <ccross@android.com>
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Turns out MMC2 (the bayonet 4-lane port) wasn't enabled in the
original pinmux. Fix that.
Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Colin Cross <ccross@android.com>
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Add the 3 sdhci devices that are available on Harmony as
platform devices. Two go to slots (one 4-lane, one 8-lane),
and one goes to onboard wifi.
Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Colin Cross <ccross@android.com>
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Remove dead atag handling code for nvidia-specific tags.
Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Colin Cross <ccross@android.com>
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Add a common location to register resources for used on-chip devices
that are commonly configured on boards. Devices will be added to this file
as more drivers are added that can make use of them.
This is based on work contributed by several people, most of it from
Colin Cross and Erik Gilling.
Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Colin Cross <ccross@android.com>
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Move harmony over to use the new gpio config table instead of having
separate settings in various parts of the code.
(The tegra sdhci driver should have the tegra_gpio_* ops removed, but
that will be done separately from this change.)
Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Erik Gilling <konkers@android.com>
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To give one place to setup the pins that are used as GPIOs instead
of as their pinmuxed functions. Specifying enabled as false explicitly
disables the gpio mode of that pin (if left on by firmware).
This should remove the need for calling these from specific drivers and
thus reduce tegra-specific code from them.
Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Erik Gilling <konkers@android.com>
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Adds I2C bus driver for nVidia Tegra SoCs. Tegra includes 4 I2C
controllers, one of which is inside the Dynamic Voltage Controller
and has a slightly different register map.
Signed-off-by: Colin Cross <ccross@android.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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The option isn't terribly useful on other ARM platforms.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Colin Cross <ccross@android.com>
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Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Colin Cross <ccross@android.com>
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Enable the cpu, emc (memory controller) and csite (debug and
trace controller) clocks during init to prevent them from
being disabled by the bootloader clock disabling code.
Signed-off-by: Colin Cross <ccross@android.com>
Acked-by: Olof Johansson <olof@lixom.net>
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Enable the timer and rtc clocks to prevent them being
turned off by the bootloader clock disabling code.
Signed-off-by: Colin Cross <ccross@android.com>
Acked-by: Olof Johansson <olof@lixom.net>
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Move tegra_common_init to tegra_init_early, and set it
as the init_early entry in the machine struct.
Initializes the clocks earlier so that timers can enable
their clocks.
Also reorders the members in the Harmony and Trimslice
boards' machine structs to match the order they are
called in.
Signed-off-by: Colin Cross <ccross@android.com>
Acked-by: Olof Johansson <olof@lixom.net>
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Peripheral clocks that have no clock enable bit in the
enable registers have their clk_num set to 0. Bit 0
in the clock enable registers is the CPU clock.
Prevent disables on these peripheral clocks from
accidentally disabling the CPU clock.
Signed-off-by: Colin Cross <ccross@android.com>
Acked-by: Olof Johansson <olof@lixom.net>
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Call the clock's round_rate op, if it exists, before calling
the set_rate op. This will help later when dvfs is added,
dvfs needs to know what the final rate will be before the
frequency changes.
Also requires fixes to the round rate functions to ensure
calling round rate and then set rate will not cause the
frequency to be rounded down twice. When picking clock
divider values, the clock framework picks the closest
frequency that is lower than the requested frequency. If
the new frequency calculated from the divider value is
rounded down, and then passed to set_rate, it will get
rounded down again, possibly resulting in a frequency two
steps lower than the original requested frequency.
Fix the problem by rounding up when calculating the frequency
coming out of a clock divider, so if that frequency is
requested again, the same divider value will be picked.
Signed-off-by: Colin Cross <ccross@android.com>
Acked-by: Olof Johansson <olof@lixom.net>
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Some peripheral clocks share enable bits. Refcount the enables so
that calling clk_disable on one clock will not turn off another
clock.
Signed-off-by: Colin Cross <ccross@android.com>
Acked-by: Olof Johansson <olof@lixom.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6
* 'urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6:
pcmcia: re-enable Zoomed Video support
cm4000_cs: Fix undefined ops warning
pcmcia vs. MECR on pxa25x/sa1111
drivers/char/pcmcia/ipwireless/main.c: Convert release_resource to release_region/release_mem_region
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'irq-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
genirq: Disable the SHIRQ_DEBUG call in request_threaded_irq for now
genirq: Prevent access beyond allocated_irqs bitmap
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
perf: Fix throttle logic
perf, x86: P4 PMU: Fix spurious NMI messages
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'fix/asoc' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
ASoC: Ensure supplies are maintained for force enabled widgets
ASoC: WM8994: Improve playback robustness
ASoC: WM8994: Improve robustness in some use cases
ASoC: WM8903: Fix mic detection enable logic
ASoC: WM8903: Fix mic detection register definitions
ASoC: CX20442: fix wrong reg_cache_default content
ASoC: Sync initial widget state with hardware
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Building with CONFIG_KERNEL_XZ results in the following:
# Untracked files:
# (use "git add <file>..." to include in what will be committed)
#
# arch/x86/boot/compressed/vmlinux.bin.xz
So ignore xz-compressed files at the top level like we already do for
other compression types.
Signed-off-by: Romain Francoise <romain@orebokech.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs/ecryptfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs/ecryptfs-2.6:
eCryptfs: Copy up lower inode attrs in getattr
ecryptfs: read on a directory should return EISDIR if not supported
eCryptfs: Handle NULL nameidata pointers
eCryptfs: Revert "dont call lookup_one_len to avoid NULL nameidata"
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The current code does not follow Intel documentation: It misses some things
and does other, undocumented things. This causes wrong backlight values in
certain conditions. Instead of adding tricky code handling badly documented
and rare corner cases, don't handle combination mode specially at all. This
way PCI_LBPC is never touched and weird things shouldn't happen.
If combination mode is enabled, then the only downside is that changing the
brightness has a greater granularity (the LBPC value), but LBPC is at most
254 and the maximum is in the thousands, so this is no real functional loss.
A potential problem with not handling combined mode is that a brightness of
max * PCI_LBPC is not bright enough. However, this is very unlikely because
from the documentation LBPC seems to act as a scaling factor and doesn't look
like it's supposed to be changed after boot. The value at boot should always
result in a bright enough screen.
IMPORTANT: However, although usually the above is true, it may not be when
people ran an older (2.6.37) kernel which messed up the LBPC register, and
they are unlucky enough to have a BIOS that saves and restores the LBPC value.
Then a good kernel may seem to not work: Max brightness isn't bright enough.
If this happens people should boot back into the old kernel, set brightness
to the maximum, and then reboot. After that everything should be fine.
For more information see the below links. This fixes bugs:
http://bugzilla.kernel.org/show_bug.cgi?id=23472
http://bugzilla.kernel.org/show_bug.cgi?id=25072
Signed-off-by: Indan Zupancic <indan@nul.nu>
Tested-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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We force particular alignment when we generate attribute structures
when generation MODULE_VERSION() data and we need to make sure that
this alignment is followed when we iterate over these structures,
otherwise we may crash on platforms whose natural alignment is not
sizeof(void *), such as m68k.
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Dmitry Torokhov <dtor@vmware.com>
[ There are more issues here, but the fixes are incredibly ugly - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86:
dell-laptop: Toggle the unsupported hardware killswitch
thinkpad_acpi: Always report scancodes for hotkeys
acer-wmi: Fix capitalisation of GUID
platform/x86: ideapad-laptop depends on INPUT
platform: x86: acer-wmi: world-writable sysfs threeg file
platform: x86: asus_acpi: world-writable procfs files
platform: x86: tc1100-wmi: world-writable sysfs wireless and jogdial files
platform-drivers: x86: pmic: Use request_irq instead of chained handler
platform-drivers: x86: pmic: Use irq_chip buslock mechanism
platform-drivers: x86: Convert pmic to new irq_chip functions
platform-drivers: x86: pmic: Fix up bogus irq hackery
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