| Commit message (Collapse) | Author | Age | Files | Lines |
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The cell's platform_data is now accessed with a helper function;
change clients to use that, and remove the now-unused data_size.
Note that mfd-core no longer makes a copy of platform_data, but the
mc13xxx-core driver creates the pdata structures on the stack. In
order to get around that, the various ARM mach types that set the
pdata have been changed to hold the variable in static (global) memory.
Also note that __initdata references in aforementioned pdata structs
have been dropped.
Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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The cell's platform_data is now accessed with a helper function;
change clients to use that, and remove the now-unused data_size.
Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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No need to explicitly set the cell's platform_data/data_size.
Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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The cell's platform_data is now accessed with a helper function;
change clients to use that, and remove the now-unused data_size.
Signed-off-by: Andres Salomon <dilinger@queued.net>
Acked-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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No need to explicitly set the cell's platform_data/data_size.
Modify clients to use mfd_get_cell helper function instead of
accessing platform_data directly.
Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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No need to explicitly set the cell's platform_data/data_size.
Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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The cell's platform_data is now accessed with a helper function;
change clients to use that, and remove the now-unused data_size.
Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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No need to explicitly set the cell's platform_data/data_size.
Modify clients to use mfd_get_cell helper function instead of
accessing platform_data directly.
Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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The cell's platform_data is now accessed with a helper function;
change clients to use that, and remove the now-unused data_size.
Note that the mfd's platform_data is marked __devinitdata. This
is still correct in all cases except for the timbgpio driver, whose
remove hook has been changed to no longer reference the pdata.
Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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No need to explicitly set the cell's platform_data/data_size.
Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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No need to explicitly set the cell's platform_data/data_size.
Modify clients to use mfd_get_cell helper function instead of
accessing platform_data directly.
Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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The cell's platform_data is now accessed with a helper function;
change clients to use that, and remove the now-unused data_size.
Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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No clients (in mainline kernel, I'm told that drivers exist in external
trees that are planned for mainline inclusion) make use of this, nor
do they make use of platform_data, so nothing really had to change here.
The .data_size field is unused, so its usage gets removed.
Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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No need to explicitly set the cell's platform_data/data_size.
Modify clients to use mfd_get_cell helper function instead of
accessing platform_data directly.
Signed-off-by: Andres Salomon <dilinger@queued.net>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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Previously, one would set the mfd_cell's platform_data/data_size to point
to the current mfd_cell in order to pass that information along to drivers.
This causes the current mfd_cell to always be available to drivers. It
also adds a wrapper function for fetching the mfd cell from a platform
device, similar to what originally existed for mfd devices.
Drivers who previously used platform_data for other purposes can still
use it; the difference is that mfd_get_data() must be used to
access it (and the pdata structure is no longer allocated in
mfd_add_devices).
Note that mfd_get_data is intentionally vague (in name) about where
the data is stored; variable name changes can come later without having
to touch brazillions of drivers.
Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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Enabling twl4030_wdt and twl4030_pwrbutton only for Triton i.e for
TWL4030 and TWL5030. This is to be excluded for Phoenix TWL6030.
Tested OMAP4 blaze, OMAP2430, OMAP3630 boot up.
Signed-off-by: Keerthy <j-keerthy@ti.com>
Reviewed-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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Ensure that the chip is in the lowest power mode possible when suspended
by performing a soft reset on it. On early silicon revisions the lowest
power modes can't be entered without using reset so we can't achieve
equivalent results within the individual drivers.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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In Blaze and Panda, 32KHz clock - CLK32KG to WLAN is supplied
from Phoenix TWL6030.
Add CLK32KG platform data to blaze and omap4panda board file.
Signed-off-by: Balaji T K <balajitk@ti.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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In OMAP4 Blaze and Panda, 32KHz clock to WLAN is supplied from Phoenix
TWL6030. The 32KHz clock state (ON/OFF) is configured in
CLK32KG_CFG_[GRP, TRANS, STATE] register. This follows the same register
programming model as other regulators in TWL6030. So add CLK32KG as pseudo
regulator.
Signed-off-by: Balaji T K <balajitk@ti.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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AB8500 GPADC driver used to convert Acc and battery/ac/usb voltage
Signed-off-by: Arun Murthy <arun.murthy@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Acked-by: Mattias Wallin <mattias.wallin@stericsson.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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Don't allow everybody to interact with hardware registers.
Signed-off-by: Vasiliy Kulikov <segoon@openwall.com>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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Don't allow everybody to interact with hardware registers.
Signed-off-by: Vasiliy Kulikov <segoon@openwall.com>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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Don't allow everybody to change device hardware registers.
Signed-off-by: Vasiliy Kulikov <segoon@openwall.com>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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This adds a pretty straight-forward system control driver for the
AB8500. This driver will be used from the core platform, e.g the
clock tree implementation in the machine code, and is by nature
singleton.
There are a few simple functions to read, write, set and clear
registers so that the machine code can control its own foundation.
Cc: Mattias Wallin <mattias.wallin@stericsson.com>
Signed-off-by: Mattias Nilsson <mattias.i.nilsson@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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The WM831x interrupt controller provides reporting of the touchscreen
related interrupts in the primary interrupt status register as a
performance optimisation - use this to avoid reading the secondary
status registers for those interrupts.
For code simplicity and to avoid iterating over all interrupts we open
code for the two affected interrupt sources.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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There is a move to deprecate bus-specific PM operations and move to
using dev_pm_ops instead in order to reduce the amount of boilerplate
code in buses and facilitiate updates to the PM core. Do this move for
the WM831x SPI driver.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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When using a fixed voltage regulator triggered by a TPS6586x GPIO,
this allows to declare and initialize it conveniently from the "subdev" list.
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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Add BTN_TOUCH event reporting to ucb1x00_ts touchscreen driver.
This will make this touchscreen driver behave consistently wrt.
BTN_TOUCH.
Signed-off-by: Jochen Friedrich <jochen@scram.de>
Acked-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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A few new i2c-drivers came into the kernel which clear the clientdata-pointer
on exit or error. This is obsolete meanwhile, the core will do it.
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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Provide platform data allowing the system to set the /IRQ pin into
CMOS mode rather than the default open drain. The default value of
this platform data reflects the default hardware configuration so
there should be no change to existing users.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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There is a move to deprecate bus-specific PM operations and move to
using dev_pm_ops instead in order to reduce the amount of boilerplate
code in buses and facilitiate updates to the PM core. Do this move for
the pcf50633 driver.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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No need to have them in the global namespace and sparse complains.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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There is a move to deprecate bus-specific PM operations and move to
using dev_pm_ops instead in order to reduce the amount of boilerplate
code in buses and facilitiate updates to the PM core. Do this move for
the adp5520 driver.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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The WM831x touchscreen interrupts need acknowledgement even when using
direct signals to the CPU (which don't go through the core) so leave
the acknowledgement up to the touchscreen driver for simplicity.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx: (66 commits)
avr32: at32ap700x: fix typo in DMA master configuration
dmaengine/dmatest: Pass timeout via module params
dma: let IMX_DMA depend on IMX_HAVE_DMA_V1 instead of an explicit list of SoCs
fsldma: make halt behave nicely on all supported controllers
fsldma: reduce locking during descriptor cleanup
fsldma: support async_tx dependencies and automatic unmapping
fsldma: fix controller lockups
fsldma: minor codingstyle and consistency fixes
fsldma: improve link descriptor debugging
fsldma: use channel name in printk output
fsldma: move related helper functions near each other
dmatest: fix automatic buffer unmap type
drivers, pch_dma: Fix warning when CONFIG_PM=n.
dmaengine/dw_dmac fix: use readl & writel instead of __raw_readl & __raw_writel
avr32: at32ap700x: Specify DMA Flow Controller, Src and Dst msize
dw_dmac: Setting Default Burst length for transfers as 16.
dw_dmac: Allow src/dst msize & flow controller to be configured at runtime
dw_dmac: Changing type of src_master and dest_master to u8.
dw_dmac: Pass Channel Priority from platform_data
dw_dmac: Pass Channel Allocation Order from platform_data
...
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Commit 4aa5f366431fe (avr32: at32ap700x: specify DMA src and dst
masters) specified the masters for the ac97c playback device
but incorrectly set them in the capture slave information rather
than playback.
Cc: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
Reported-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Jamie Iles <jamie@jamieiles.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
[rebased on dmaengine for 2.6.39 (d42efe6b)]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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When we try to test all channels present on our controller together, some
channels of lower priority may be very slow as compared to others. If number of
transfers is unlimited, some channels may timeout and will not finish within 3
seconds. Thus, while doing such regress testing we may need to have higher value
of timeouts. This patch adds support for passing timeout value via module
parameters. Default value is 3 msec, a negative value means max timeout
possible.
Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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As a side effect this makes IMX_DMA selectable on i.MX21 again, because
the symbol ARCH_MX21 doesn't exist (MACH_MX21 would have been more correct).
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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The original dma_halt() function set the CA (channel abort) bit on both
the 83xx and 85xx controllers. This is incorrect on the 83xx, where this
bit means TEM (transfer error mask) instead. The 83xx doesn't support
channel abort, so we only do this operation on 85xx.
Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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This merges the fsl_chan_ld_cleanup() function into the dma_do_tasklet()
function to reduce locking overhead. In the best case, we will be able
to keep the DMA controller busy while we are freeing used descriptors.
In all cases, the spinlock is grabbed two times fewer than before on
each transaction.
Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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Previous to this patch, the dma_run_dependencies() function has been
called while holding desc_lock. This function can call tx_submit() for
other descriptors, which may try to re-grab the lock. Avoid this by
moving the descriptors to be cleaned up to a temporary list, and
dropping the lock before cleanup.
At the same time, add support for automatic unmapping of src and dst
buffers, as offered by the DMAEngine API.
Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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Enabling poisoning in the dmapool API quickly showed that the DMA
controller was fetching descriptors that should not have been in use.
This has caused intermittent controller lockups during testing.
I have been unable to figure out the exact set of conditions which cause
this to happen. However, I believe it is related to the driver using the
hardware registers to track whether the controller is busy or not. The
code can incorrectly decide that the hardware is idle due to lag between
register writes and the hardware actually becoming busy.
To fix this, the driver has been reworked to explicitly track the state
of the hardware, rather than try to guess what it is doing based on the
register values.
This has passed dmatest with 10 threads per channel, 100000 iterations
per thread several times without error. Previously, this would fail
within a few seconds.
Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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This fixes some minor violations of the coding style. It also changes
the style of the device_prep_dma_*() function definitions so they are
identical.
Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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This adds better tracking to link descriptor allocations, callbacks, and
frees. This makes it much easier to track errors with link descriptors.
Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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This makes debugging the driver much easier when multiple channels are
running concurrently. In addition, you can see how much descriptor
memory each channel has allocated via the dmapool API in sysfs.
Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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This is a purely cosmetic cleanup. It is nice to have related functions
right next to each other in the code.
Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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The dmatest code relies on the DMAEngine API to automatically call
dma_unmap_single() on src buffers. The flags it passes are incorrect,
fix them.
Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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dmaengine
* 'for_dan' of git://git.infradead.org/users/vkoul/slave-dma:
drivers, pch_dma: Fix warning when CONFIG_PM=n.
dmaengine/dw_dmac fix: use readl & writel instead of __raw_readl & __raw_writel
avr32: at32ap700x: Specify DMA Flow Controller, Src and Dst msize
dw_dmac: Setting Default Burst length for transfers as 16.
dw_dmac: Allow src/dst msize & flow controller to be configured at runtime
dw_dmac: Changing type of src_master and dest_master to u8.
dw_dmac: Pass Channel Priority from platform_data
dw_dmac: Pass Channel Allocation Order from platform_data
dw_dmac: Mark all tx_descriptors with DMA_CRTL_ACK after xfer finish
dw_dmac: Change value of DWC_MAX_COUNT to 4095.
dw_dmac: Adding support for 64 bit access width for memcpy xfers
dw_dmac: Calling dwc_scan_descriptors from dwc_tx_status() after taking lock
dw_dmac: Move single descriptor from dwc->queue to dwc->active_list in dwc_complete_all
dw_dmac: Replace module_init() with subsys_initcall()
dw_dmac: Remove compilation dependency from AVR32 and put on HAVE_CLK
dmaengine: mxs-dma: add dma support for i.MX23/28
pch_dma: set the number of array correctly
pch_dma: fix kernel error issue
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