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Pull ARM updates from Russell King:
"First ARM push of this merge window, post me coming back from holiday.
This is what has been in linux-next for the last few weeks. Not much
to say which isn't described by the commit summaries."
* 'for-linus' of git://git.linaro.org/people/rmk/linux-arm: (32 commits)
ARM: 7463/1: topology: Update cpu_power according to DT information
ARM: 7462/1: topology: factorize the update of sibling masks
ARM: 7461/1: topology: Add arch_scale_freq_power function
ARM: 7456/1: ptrace: provide separate functions for tracing syscall {entry,exit}
ARM: 7455/1: audit: move syscall auditing until after ptrace SIGTRAP handling
ARM: 7454/1: entry: don't bother with syscall tracing on ret_from_fork path
ARM: 7453/1: audit: only allow syscall auditing for pure EABI userspace
ARM: 7452/1: delay: allow timer-based delay implementation to be selected
ARM: 7451/1: arch timer: implement read_current_timer and get_cycles
ARM: 7450/1: dcache: select DCACHE_WORD_ACCESS for little-endian ARMv6+ CPUs
ARM: 7449/1: use generic strnlen_user and strncpy_from_user functions
ARM: 7448/1: perf: remove arm_perf_pmu_ids global enumeration
ARM: 7447/1: rwlocks: remove unused branch labels from trylock routines
ARM: 7446/1: spinlock: use ticket algorithm for ARMv6+ locking implementation
ARM: 7445/1: mm: update CONTEXTIDR register to contain PID of current process
ARM: 7444/1: kernel: add arch-timer C3STOP feature
ARM: 7460/1: remove asm/locks.h
ARM: 7439/1: head.S: simplify initial page table mapping
ARM: 7437/1: zImage: Allow DTB command line concatenation with ATAG_CMDLINE
ARM: 7436/1: Do not map the vectors page as write-through on UP systems
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Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB patches from Greg Kroah-Hartman:
"Here's the big USB patch set for the 3.6-rc1 merge window.
Lots of little changes in here, primarily for gadget controllers and
drivers. There's some scsi changes that I think also went in through
the scsi tree, but they merge just fine. All of these patches have
been in the linux-next tree for a while now.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
Fix up trivial conflicts in include/scsi/scsi_device.h (same libata
conflict that Jeff had already encountered)
* tag 'usb-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (207 commits)
usb: Add USB_QUIRK_RESET_RESUME for all Logitech UVC webcams
usb: Add quirk detection based on interface information
usb: s3c-hsotg: Add header file protection macros in s3c-hsotg.h
USB: ehci-s5p: Add vbus setup function to the s5p ehci glue layer
USB: add USB_VENDOR_AND_INTERFACE_INFO() macro
USB: notify phy when root hub port connect change
USB: remove 8 bytes of padding from usb_host_interface on 64 bit builds
USB: option: add ZTE MF821D
USB: sierra: QMI mode MC7710 moved to qcserial
USB: qcserial: adding Sierra Wireless devices
USB: qcserial: support generic Qualcomm serial ports
USB: qcserial: make probe more flexible
USB: qcserial: centralize probe exit path
USB: qcserial: consolidate usb_set_interface calls
USB: ehci-s5p: Add support for device tree
USB: ohci-exynos: Add support for device tree
USB: ehci-omap: fix compile failure(v1)
usb: host: tegra: pass correct pointer in ehci_setup()
USB: ehci-fsl: Update ifdef check to work on 64-bit ppc
USB: serial: keyspan: Removed unrequired parentheses.
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This resolves the merge issue with the drivers/usb/host/ehci-omap.c
file.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This resolves a merge issue with the option.c USB serial driver.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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an oops on boot for all omap3xxx platforms that use usbhs_omap for
EHCI. The actual oops comes from faulty ehci-omap cleanup, but the
failure caused by the change is evidenced here:
[ 3.655059] ehci-omap ehci-omap.0: utmi_p1_gfclk failed error:-2
[ 3.661376] ehci-omap: probe of ehci-omap.0 failed with error -2
utmi_p1_gfclk is a clock that exists on OMAP4, but not OMAP3. In the
OMAP3 case, it is configured as a dummy clock. However, OMAP4 lists
the dev_id as NULL, but OMAP3 lists it as "usbhs_omap".
Attempting to get that clock from ehci-omap then fails. The solution
is to just change the clock3xxx_data.c for dummy clocks used in the
errata fix to match the dev_id, NULL, used in clock44xx_data.c.
Tested on BB-xM.
Signed-off-by: Russ Dill <Russ.Dill@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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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
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Correcting spelling typo in mach-omap2
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Pull arm-soc clk changes from Arnd Bergmann:
"Clock support is moving to the clk subsystem. These tegra, omap and
imx changes are for code that is still platform specific and not (yet)
part of that subsystem."
Fix up conflicts in arch/arm/mach-{imx/clk-imx51-imx53.c,omap2/Makefile}
* tag 'clk' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (23 commits)
ARM: imx: clk-imx31: Fix clock id for rnga driver
ARM: imx: add missing item to the list of clock event modes
ARM: i.MX5x CSPI: Fixed clock name for CSPI
ARM: i.MX5x clocks: Fix GPT clocks
ARM: i.MX5x clocks: Fix parent for PWM clocks
ARM: i.MX5x clocks: Add EPIT support
ARM: mx27: Reenable silicon version print
ARM: clk-imx27: Fix rtc clock id
ARM: tegra: Provide clock for only one PWM controller
ARM: tegra: Fix PWM clock programming
ARM: OMAP3+: clock33xx: Add AM33XX clock tree data
ARM: OMAP3+: clock: Move common clksel_rate & clock data to common file
ARM: tegra: dma: rename driver name for clock to "tegra-apbdma"
ARM: tegra: Remove second instance of uart clk
crypto: add clk_prepare/clk_unprepare
ASoC: tegra: add clk_prepare/clk_unprepare
staging: nvec: add clk_prepare/clk_unprepare
spi/tegra: add clk_prepare/clk_unprepare
Input: tegra-kbc - add clk_prepare/clk_unprepare
USB: ehci-tegra: add clk_prepare/clk_unprepare
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From Sascha Hauer <s.hauer@pengutronix.de>:
i.MX clk noncritical fixes and updates
* tag 'imx-clk' of git://git.pengutronix.de/git/imx/linux-2.6:
ARM: imx: clk-imx31: Fix clock id for rnga driver
ARM: imx: add missing item to the list of clock event modes
ARM: i.MX5x CSPI: Fixed clock name for CSPI
ARM: i.MX5x clocks: Fix GPT clocks
ARM: i.MX5x clocks: Fix parent for PWM clocks
ARM: i.MX5x clocks: Add EPIT support
ARM: mx27: Reenable silicon version print
ARM: clk-imx27: Fix rtc clock id
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/clk
From Tony Lindgren <tony@atomide.com>:
This branch adds clock data for am33xx. Note that eventually these
will use the common clock framework, but those patches are not quite
ready yet for omaps. This branch depends on omap-cleanup-part2-for-v3.6
branch.
* tag 'omap-devel-am33xx-data-for-v3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP3+: clock33xx: Add AM33XX clock tree data
ARM: OMAP3+: clock: Move common clksel_rate & clock data to common file
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into devel-am33xx-data
OMAP AM33xx clock data
Conflicts:
arch/arm/mach-omap2/Makefile
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AM33XX clock implementation is different than any existing OMAP
family of devices. Although DPLL module is similar to OMAP4
device, but the usage is very much different than OMAP4.
AM33XX has different peripheral set and each module gets
integrated to the clock framework differently than OMAP
family of devices.
This patch adds full Clock tree data for AM33XX family
of devices and also integrates it into existing OMAP framework.
Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: Afzal Mohammed <afzal@ti.com>
Signed-off-by: Vaibhav Bedia <vaibhav.bedia@ti.com>
Cc: Kevin Hilman <khilman@ti.com>
Cc: Rajendra Nayak <rnayak@ti.com>
CC: Tony Lindgren <tony@atomide.com>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Benoit Cousson <b-cousson@ti.com>
[paul@pwsan.com: updated to apply; changed 'soc_is_am33xx' to
'cpu_is_am33xx' to match usage in Tony's current am33xx branch]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
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OMAP3, OMAP4 and AM33xx share some common data like, clksel_rate
oscillator clock input (Virtual clock nodes), required for
clock tree; so move common data to common data file so that it
can be reused.
[hvaibhav@ti.com: Created separate commit from Paul's developement
branch]
Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
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Pull arm-soc power management changes from Arnd Bergmann:
"These are various power management related changes, mainly concerning
cpuidle on i.MX and OMAP, as well as a the move of the omap
smartreflex driver to live in the power subsystem."
Fix up conflicts in arch/arm/mach-{imx/mach-imx6q.c,omap2/prm2xxx_3xxx.h}
* tag 'pm' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (37 commits)
ARM: OMAP2+: PM: fix IRQ_NOAUTOEN removal by mis-merge
ARM: OMAP2+: do not allow SmartReflex to be built as a module
ARM: OMAP2: Use hwmod to initialize mmc for 2420
ARM: OMAP3: PM: cpuidle: optimize the clkdm idle latency in C1 state
ARM: OMAP3: PM: cpuidle: optimize the PER latency in C1 state
ARM: OMAP3: PM: cpuidle: default to C1 in next_valid_state
ARM: OMAP3: PM: cleanup cam_pwrdm leftovers
ARM: OMAP3: PM: call pre/post transition per powerdomain
ARM: OMAP2+: powerdomain: allow pre/post transtion to be per pwrdm
ARM: OMAP3: PM: Remove IO Daisychain control from cpuidle
ARM: OMAP3PLUS: hwmod: reconfigure IO Daisychain during hwmod mux
ARM: OMAP3+: PRM: Enable IO wake up
ARM: OMAP4: PRM: Add IO Daisychain support
ARM: OMAP3: PM: Move IO Daisychain function to omap3 prm file
ARM: OMAP3: PM: correct enable/disable of daisy io chain
ARM: OMAP2+: PRM: fix compile for OMAP4-only build
W1: OMAP HDQ1W: use runtime PM
ARM: OMAP2+: HDQ1W: use omap_device
W1: OMAP HDQ1W: use 32-bit register accesses
W1: OMAP HDQ1W: allow driver to be built on all OMAP2+
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/pm
From: Tony Lindgren <tony@atomide.com>:
Here are some omap PM changes that reimplement omap PRCM I/O chain
code for wake-ups, and improve idle latencies for cpuidle.
* tag 'omap-devel-pm-for-v3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP2+: PM: fix IRQ_NOAUTOEN removal by mis-merge
ARM: OMAP3: PM: cpuidle: optimize the clkdm idle latency in C1 state
ARM: OMAP3: PM: cpuidle: optimize the PER latency in C1 state
ARM: OMAP3: PM: cpuidle: default to C1 in next_valid_state
ARM: OMAP3: PM: cleanup cam_pwrdm leftovers
ARM: OMAP3: PM: call pre/post transition per powerdomain
ARM: OMAP2+: powerdomain: allow pre/post transtion to be per pwrdm
ARM: OMAP3: PM: Remove IO Daisychain control from cpuidle
ARM: OMAP3PLUS: hwmod: reconfigure IO Daisychain during hwmod mux
ARM: OMAP3+: PRM: Enable IO wake up
ARM: OMAP4: PRM: Add IO Daisychain support
ARM: OMAP3: PM: Move IO Daisychain function to omap3 prm file
ARM: OMAP3: PM: correct enable/disable of daisy io chain
ARM: OMAP2+: PRM: fix compile for OMAP4-only build
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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commit 99b59df0 (ARM: OMAP3: PM: fix shared PRCM interrupt leave
disabled at boot) added IRQ_NOAUTOEN to the PRCM interrupt so it could
be enabled later if needed. However, this commit was partially undone
when merging the IO daisy chain rework in 9a17d88e (Merge tag
'omap-devel-c-for-3.6' of
git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into
devel-pm
This patch adds back the IRQ_NOAUTOEN fix that was removed by the
merge resolution.
This also fixes the following boot-time warning that showed up after
merging the IO daisy chain rework:
[ 3.849334] WARNING: at kernel/irq/manage.c:436 enable_irq+0x3c/0x78()
[ 3.856231] Unbalanced enable for IRQ 297
[ 3.860473] Modules linked in:
[ 3.863739] [<c001a114>] (unwind_backtrace+0x0/0xf0) from [<c003c7e8>] (warn_slowpath_common+0x4c/0x64)
[ 3.873687] [<c003c7e8>] (warn_slowpath_common+0x4c/0x64) from [<c003c894>] (warn_slowpath_fmt+0x30/0x40)
[ 3.883819] [<c003c894>] (warn_slowpath_fmt+0x30/0x40) from [<c00993e0>] (enable_irq+0x3c/0x78)
[ 3.893035] [<c00993e0>] (enable_irq+0x3c/0x78) from [<c067b1e8>] (omap3_pm_init+0x328/0x5f4)
[ 3.902099] [<c067b1e8>] (omap3_pm_init+0x328/0x5f4) from [<c067161c>] (init_machine_late+0x1c/0x28)
[ 3.911773] [<c067161c>] (init_machine_late+0x1c/0x28) from [<c0008648>] (do_one_initcall+0x34/0x178)
[ 3.921539] [<c0008648>] (do_one_initcall+0x34/0x178) from [<c066e8f4>] (kernel_init+0xfc/0x1c0)
[ 3.930847] [<c066e8f4>] (kernel_init+0xfc/0x1c0) from [<c00140b0>] (kernel_thread_exit+0x0/0x8)
[ 3.940246] ---[ end trace 55a0ad32ca2ca682 ]---
Reported-by: Javier Martinez Canillas <javier@dowhile0.org>
Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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For a power domain to idle all the clock domains in it must idle.
This patch implements an optimization of the cpuidle code by
denying and later allowing only the first registered clock domain
of a power domain, and so optimizes the latency of the low power code.
The functions _cpuidle_allow_idle and _cpuidle_deny_idle are
not used anymore and so are removed.
Signed-off-by: Jean Pihet <j-pihet@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
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One of the main contributors of the low power code latency is
the PER power domain. To optimize the high-performance and
low-latency C1 state, prevent any PER state which is lower
than the CORE state in C1.
Reported and suggested by Kevin Hilman.
Reported-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Jean Pihet <j-pihet@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
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If the next state is no found in the next_valid_state function,
fallback to the default value of C1 (which is state 0).
This prevents the use of a bogus state -1 in the rest of the cpuidle
code.
Signed-off-by: Jean Pihet <j-pihet@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
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commit e7410cf7 (OMAP3: PM: move device-specific special cases from PM
core into CPUidle) moved mangement of cam_pwrdm to CPUidle but left
some remnants behind, namely the call to clkcm_allo_idle() for the
clockdomains in the MPU pwrdm. Remove these since they are not
necessary and cause unwanted latency in the idle path.
Acked-by: Tero Kristo <Tero Kristo <t-kristo@ti.com>
Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Tested-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
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We only need to call the pre/post transtion methods when we know the
power state is changing. First, split up the pre/post transition
calls to be per-powerdomain, and then make them conditional on whether
the power domain is actually changing states.
Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Tested-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
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Iteration over all power domains in the idle path is unnecessary since
only power domains that are transitioning need to be accounted for.
Also PRCM register accesses are known to be expensive, so the
additional latency added to the idle path is signficiant.
In order allow the pre/post transitions to be isolated and called
per-pwrdm, change the API so passing in a specific power domain will
trigger the pre/post transtion accounting for only that specific power
domain. Passing NULL means iterating over all power domains as is
current behavior.
Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Tested-by: Grazvydas Ignotas <notasas@gmail.com>
Acked-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into devel-pm
Reimplement the OMAP PRCM I/O chain code. Needed for I/O wakeups to
work correctly.
Conflicts:
arch/arm/mach-omap2/prm2xxx_3xxx.c
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As IO Daisy chain sequence is triggered via hwmod mux, there is no need to
control it from cpuidle path for OMAP3.
Also as omap3_disable_io_chain is no longer being used, just remove the
function.
Signed-off-by: Vishwanath BS <vishwanath.bs@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Reviewed-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
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IO Daisychain feature has to be triggered whenever there is a change in
device's mux configuration (See section 3.9.4 in OMAP4 Public TRM vP).
Now devices can idle independent of the powerdomain, there can be a
window where device is idled and corresponding powerdomain can be
ON/INACTIVE state. In such situations, since both module wake up is
enabled at padlevel as well as io daisychain sequence is triggered,
there will be 2 PRCM interrupts (Module async wake up via swakeup and
IO Pad interrupt). But as PRCM Interrupt handler clears the Module
Padlevel WKST bit in the first interrupt, module specific interrupt
handler will not triggered for the second time
Also look at detailed explanation given by Rajendra at
http://www.spinics.net/lists/linux-serial/msg04480.html
Signed-off-by: Vishwanath BS <vishwanath.bs@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Reviewed-by: Rajendra Nayak <rnayak@ti.com>
[paul@pwsan.com: remove dependency on pm.c & pm.h; add kerneldoc]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
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Enable IO Wake up for OMAP3/4 as part of PRM Init. Currently this has been
managed in cpuidle path which is not the right place. Subsequent patch
will remove IO Daisy chain handling in cpuidle path once daisy chain is
handled as part of hwmod mux. This patch also moves the OMAP4 IO wakeup
enable code from the trigger function to init time setup.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Reviewed-by: Rajendra Nayak <rnayak@ti.com>
[paul@pwsan.com: harmonize function names with other PRM functions; add
kerneldoc; resolve checkpatch warnings]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
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IO daisychain is a mechanism that allows individual IO pads to generate
wakeup events on their own based on a switch of an input signal level.
This allows the hardware module behind the pad to be powered down, but
still have device level capability to detect IO events, and once this
happens the module can be powered back up to resume IO. See section
3.9.4 in OMAP4430 Public TRM for details.
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Vishwanath BS <vishwanath.bs@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
[paul@pwsan.com: use the shared MAX_IOPAD_LATCH_TIME declaration; renamed
omap4_trigger_io_chain() to conform to other PRM function names;
added kerneldoc; resolved checkpatch warnings]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
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Since IO Daisychain modifies only PRM registers, it makes sense to move
it to PRM File. Also changed the timeout value for IO chain enable to
100us and added a wait for status disable at the end.
Thanks to Nishanth Menon <nm@ti.com> for contributing a fix to the
timeout code waiting for WUCLKOUT to go high.
Signed-off-by: Vishwanath BS <vishwanath.bs@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Cc: Nishanth Menon <nm@ti.com>
Reviewed-by: Rajendra Nayak <rnayak@ti.com>
[paul@pwsan.com: renamed omap3_trigger_io_chain() to better describe the
end result and to match other PRM functions; removed
omap3_disable_io_chain(); moved MAX_IOPAD_LATCH_TIME to prcm-common as it
will also be used by the OMAP4 code; removed unnecessary barrier;
added kerneldoc; added credit for fix from Nishanth]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
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Currently the enabling and disabling of IO Daisy chain is not
according to the TRM. The below steps are followed to enable/
disable the IO chain, based loosely on the "Sec 3.5.7.2.2
I/O Wake-Up Mechanism" section in OMAP3630 Public TRM[1].
Steps to enable IO chain:
[a] Set PM_WKEN_WKUP.EN_IO bit
[b] Set the PM_WKEN_WKUP.EN_IO_CHAIN bit
[c] Poll for PM_WKST_WKUP.ST_IO_CHAIN.
[d] When ST_IO_CHAIN bit set to 1, clear PM_WKEN_WKUP.EN_IO_CHAIN
[e] Clear ST_IO_CHAIN bit.
Steps to disable IO chain:
[a] Clear PM_WKEN_WKUP.EN_IO_CHAIN bit
[b] Clear PM_WKEN_WKUP.EN_IO bit
[c] Clear PM_WKST_WKUP.ST_IO bit by writing 1 to it.
Step [e] & [c] in each case can be skipped, as these are handled
by the PRCM interrupt handler later.
[1] http://focus.ti.com/pdfs/wtbu/OMAP36xx_ES1.x_PUBLIC_TRM_vV.zip
Signed-off-by: Mohan V <mohanv@ti.com>
Signed-off-by: Vishwanath BS <vishwanath.bs@ti.com>
[paul@pwsan.com: modified commit message to clarify that these steps are
based loosely on the TRM section, rather than documented exactly]
Reviewed-by: Rajendra Nayak <rnayak@ti.com>
[paul@pwsan.com: resolved new warnings from checkpatch]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
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For OMAP4 only builds, the omap2_prm_* functions have dummy wrappers
to detect incorrect usage. However, several unrelated omap3 PRM
functions have made it inside the #else clause of the #ifdef wrapping
the omap2_prm stubs, causing them to disappear on OMAP4-only builds.
This was unnoticed until the IO chain support was added and introduced
a new function in this section which is referenced by omap_hwmod.c:
arch/arm/mach-omap2/omap_hwmod.c: In function '_reconfigure_io_chain':
arch/arm/mach-omap2/omap_hwmod.c:1665:3: error: implicit declaration of function 'omap3xxx_prm_reconfigure_io_chain' [-Werror=implicit-function-declaration]
Fix by using the #ifdef to only wrap the omap2_prm functions that
need stubs on OMAP4-only builds.
Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
[paul@pwsan.com: fixed checkpatch warnings for patch description]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm into devel-driver
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After a clean-up of the interfaces the OMAP Smartreflex IP driver is now a
generic driver. Move it to drivers/power/avs/.
The build is controlled by the following Kconfig options:
. CONFIG_POWER_AVS: general knob for Adaptive Voltage Scaling support,
. CONFIG_POWER_AVS_OMAP: AVS(Adaptive Voltage Scaling)
support on OMAP containing the version 1 or version 2 of the SmartReflex IP,
. CONFIG_POWER_AVS_OMAP_CLASS3: Class 3 implementation of Smartreflex.
Signed-off-by: Jean Pihet <j-pihet@ti.com>
Signed-off-by: J Keerthy <j-keerthy@ti.com>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
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Add a Kconfig menu (POWER_AVS) and rename the Kconfig options
for the OMAP SmartReflex implementation:
CONFIG_OMAP_SMARTREFLEX renames to CONFIG_POWER_AVS_OMAP
CONFIG_OMAP_SMARTREFLEX_CLASS3 renames to CONFIG_POWER_AVS_OMAP_CLASS3
This change makes the SmartReflex implementation ready for the move
to drivers/.
Signed-off-by: Jean Pihet <j-pihet@ti.com>
Signed-off-by: J Keerthy <j-keerthy@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
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Remove the global errminlimit debugfs entry and create per-voltage
entries from the data tables.
Signed-off-by: Jean Pihet <j-pihet@ti.com>
Signed-off-by: J Keerthy <j-keerthy@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
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The SmartReflex driver incorrectly treats some per-OPP data as data
common to all OPPs (e.g., ERRMINLIMIT). Move this data into a per-OPP
data structure.
Furthermore, in order to make the SmartReflex implementation ready for
the move to drivers/, remove the dependency from the SR driver code
to the voltage layer by querying the data tables only from the SR device
init code.
Based on Paul's original code for the SmartReflex driver conversion.
Signed-off-by: Jean Pihet <j-pihet@ti.com>
Signed-off-by: J Keerthy <j-keerthy@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
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Move the omap_volt_data structure from mach-omap2/ directory
to arch/arm/plat-omap/include/plat/ so that it is accessible
from both mach-omap2 and drivers directories.
Signed-off-by: J Keerthy <j-keerthy@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
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Now that omap_test_timeout is only accessible from mach-omap2/,
introduce a similar function for SR.
This change makes the SmartReflex implementation ready for the move
to drivers/.
Signed-off-by: Jean Pihet <j-pihet@ti.com>
Signed-off-by: J Keerthy <j-keerthy@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
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Change the name field value to better reflect the smartreflex
integration in the system.
Signed-off-by: Jean Pihet <j-pihet@ti.com>
Signed-off-by: J Keerthy <j-keerthy@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
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domains.
Associate a name with each SmartReflex instance from the hwmod data,
rather than attempting to reuse the name of a voltage domain. The name
from hwmod better reflects the smartreflex integration in the system.
Also have the name passed to the drivers using pdata, which helps to remove
any dependencies on SoC-specific structures.
Signed-off-by: Jean Pihet <j-pihet@ti.com>
Signed-off-by: J Keerthy <j-keerthy@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
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Convert SmartReflex "class" functions to take a struct omap_sr *, rather than
a struct voltagedomain *. SmartReflex code should be driver code and not
tightly coupled to OMAP subarchitecture-specific structures.
Based on Paul's original code for the SmartReflex driver conversion.
Signed-off-by: Jean Pihet <j-pihet@ti.com>
Signed-off-by: J Keerthy <j-keerthy@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
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Move the smartreflex header file
(arch/arm/mach-omap2/smartreflex.h) in a new header file
include/linux/power/smartreflex.h.
This change makes the SmartReflex implementation ready for the move
to drivers/.
Signed-off-by: Jean Pihet <j-pihet@ti.com>
Signed-off-by: J Keerthy <j-keerthy@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
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This allows us to pass dma request lines in platform data to
MMC driver the same way as we already do for omap2430 and later.
Also note that we need to only build this code if MMC_OMAP
is selected, so change Makefile accordingly and place it near
the MMC_OMAP_HS in the Makefile.
Signed-off-by: Tony Lindgren <tony@atomide.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into devel-driver
Convert the OMAP HDQ1W driver to use runtime PM. Make it available on
all OMAP2+ chips that appear to have it integrated. Fix a problem
preventing it from being used on OMAP4.
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Convert the old-style device registration code for HDQ1W to use
omap_device. This will allow the driver to be converted to use PM
runtime and to take advantage of the OMAP IP block management
infrastructure (hwmod, PM, etc.).
A side benefit of this conversion is that it also makes the HDQ device
available on OMAP2420. The previous code only enabled it on 2430 and
3430.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: NeilBrown <neilb@suse.de>
Tested-by: NeilBrown <neilb@suse.de>
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Pull arm-soc board specific updates from Arnd Bergmann:
"These changes are all for individual board files. In the long run,
those files will largely go away, and the amount of changes appears to
be continuously decreasing, which is a good sign. This time around,
changes are focused on tegra, omap and samsung."
Fix conflicts in arch/arm/mach-{omap2/common-board-devices.c,tegra/Makefile.boot}
as per the 'for-linus' branch.
* tag 'boards' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (39 commits)
ARM: EXYNOS: Add leds status1 and status2 on Origen board
ARM: S3C64XX: Mark most Cragganmore initdata devinitdata
ARM: EXYNOS: Add missing .reserve field to SMDKC210
ARM: EXYNOS: Add DRM device to SMDK4X12 board
ARM: S3C64XX: Clean up after SPI driver platform data updates
ARM: SAMSUNG: no need to set the value for clk_xusbxti when it is 24Mhz
ARM: EXYNOS: Add framebuffer support for SMDK4X12
ARM: EXYNOS: Add HSOTG support to SMDK4X12
ARM: S5PV210: Add audio platform device in Goni board
ARM: S5PV210: Add audio platform device in Aquila board
ARM: EXYNOS: Add audio platform device in SMDKV310 board
ARM: S3C64XX: Don't specify an irq_base for WM1192-EV1 board
ARM: OMAP3: Fix omap3evm randconfig error introduced by VBUS support
ARM: OMAP: board-omap4panda: MUX configuration for sys_nirq2
ARM: OMAP: board-4430sdp: MUX configuration for sys_nirq2
ARM: OMAP3530evm: set pendown_state and debounce time for ads7846
ARM: omap3evm: enable VBUS switch for EHCI tranceiver
ARM: OMAP3EVM: Adding USB internal LDOs board file
ARM: OMAP3EVM: Add NAND flash definition
ARM: OMAP3: cm-t35: add tvp5150 decoder support
...
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Linux 3.5-rc7
Prerequisite for samsung/board3 branch.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/boards
From Kukjin Kim <kgene.kim@samsung.com>:
The branch includes updating each Samsung boards such as SMDK4X12,
Aquila, Goni and so on, and it is for audio platform device and
supporting of HSOTG or framebuffer.
* 'next/board-samsung-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: EXYNOS: Add framebuffer support for SMDK4X12
ARM: EXYNOS: Add HSOTG support to SMDK4X12
ARM: S5PV210: Add audio platform device in Goni board
ARM: S5PV210: Add audio platform device in Aquila board
ARM: EXYNOS: Add audio platform device in SMDKV310 board
ARM: S3C64XX: Don't specify an irq_base for WM1192-EV1 board
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Commit cb8ca5897 (ARM: omap3evm: enable VBUS switch for EHCI tranceiver)
added a new randconfig error if TWL4030_CORE is not selected:
arch/arm/mach-omap2/board-omap3evm.c:368: undefined reference to `twl_i2c_read_u8'
arch/arm/mach-omap2/board-omap3evm.c:370: undefined reference to `twl_i2c_write_u8'
Signed-off-by: Tony Lindgren <tony@atomide.com>
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