This allows the S3C64XX IIS drivers to be converted to the standard
driver model and allows fixes there for problems with attempting to
acquire the clocks for the IIS blocks via the clock API.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Driver support for the new high-speed/OtG block that is
in the newer line of Samsung SoC devices such as the
S3C64XX series.
This driver does not currntly have DMA support enabled due
to issues with buffer alignment which need to be sorted out.
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Use the newly moved <plat/watchdog-reset.h> to perform the
arch_reset() call which has been unimplemented for a while.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Move the watchdog reset code from <mach/system-reset.h> to
a new file <plat/watchdog-reset.h> as this code is needed
by both s3c2410, s3c64xx and soon-to-be added s3c24a0.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
convert callback
This patch allow us to efficiently modify the number of
remaining conversions from the client side. This us useful
when we do not know in advance how many conversions we will
need or when we need to cancel pending conversions.
This change is simple enough to be compatible with existing
code that can just define the new pointer in the callback
and ignore it.
Sample usage:
http://tinyurl.com/s3c2410-ts-c (function stylus_adc_action).
Signed-off-by: Nelson Castillo <arhuaco@freaks-unidos.net>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Small cleanup.
Signed-off-by: Nelson Castillo <arhuaco@freaks-unidos.net>
[ben-linux@fluff.org: rewrote subject]
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Add platform device definitions for the high-speed and OtG
capable device block on the newer Samsung parts.
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
The s3c24xx_register_clock() function has been doing a test
on clk->owner to see if it is NULL, and then setting itself
as the owner if clk->owner == NULL.
This is not needed, arch/arm/plat-s3c/clock.c cannot be
compiled as a module, and even if it was, it should not be
playing with this field if it being registered from somewhere
else.
The best course of action is to remove this bit of
code completely.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Add support for S3C6400 SDHCI channels 0 and 1, making
the GPIO code common to both S3C6400 and S3C6410.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Move the GPIO suspend/resume support inline with the gpiolib support
so that it will work with both the S3C24XX and S3C64XX series.
The s3c_gpio_chip is extended to have a pm callback and a save block
to keep the state of the GPIO over suspend, and the code from the
s3c24xx implementation is added to a new common file.
The suspend process now uses the list of registered chips to go through
saving and restoring each one as appropriate, using the pm callback to
select the appropriate routine depending on the type of control register
present.
This change also means that any additional GPIO added should not require
changes to the PM.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Add support for saving the state of the IRQ registers over suspend.
This requires moving the S3C64XX UART registers into <plat/regs-serial.h>
and adding irq-pm.c which saves the state of all the IRQ registers.
The irq-pm.c saves all the IRQ registers, including the IRQ_EINT and
IRQ_EINT_GROUP registers as it was easier than adding three different
files. Also ensuring that all the registers are restored to the same
state as before suspend is considered to be the best thing to do.
Note, we do not suspend the VIC here, this is done by the VIC driver
itself.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Add an s3c64xx_sysclass and device for items that currently
want to bind to any s3c64xx processor. The first user of this
will be parts of the s3c64xx suspend support which need to
save device state over suspend/resume.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Add the initial support for the S3C64XX based systems to use
suspend-to-RAM to sleep.
Includes basic debugging for use with the SMDK6410 usign the
LEDs on the baseboard.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Add a simple debug message on saving the UART state and add a per-arch
pre-restore function to be used by the s3c64xx restore code to ensure
the UARTs control registers do not go through any illegal state changes.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
The USB host base address is available on both the S3C24XX and S3C64XX
ranges.
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Add common definition for USB OHCI platform device, add a Kconfig
to selectively compile it and add update all the users.
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Change the name of S3C2410_DMA_CHANNELS to S3C_DMA_CHANNELS in the process.
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Move the common information from the <mach/dma.h> header into a new
shareable <plat/dma.h> header for re-use on the s3c64xx.
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Fix the following sparse warning due to s3c_device_hwmon being
missing from <plat/devs.h>
devs.c:380:24: warning: symbol 's3c_device_hwmon' was not declared. Should it be static?
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Add an export of the two GPIO configuration calls
s3c_gpio_cfgpin and s3c_gpio_setpull to allow modules
to use them (such as ASoC drivers)
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
The platform data for the i2c-s3c2410 driver used to allow a min,
max and desired frequency for the I2C bus. This patch reduces it
to simply a desired frequency ceiling and corrects all the uses
of the platform data appropriately.
This means, for example, that on a system with a 66MHz fclk, a
request for 100KHz will achieve 65KHz which is safe and
acceptable, rather than 378KHz which it would have achieved
without this change.
Signed-off-by: Simtec Linux Team <linux@simtec.co.uk>
Signed-off-by: Daniel Silverstone <dsilvers@simtec.co.uk>
[ben-linux@fluff.org: tidy subject and description]
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
The sda_delay field should be specified in ns, not in clock ticks
as when using cpufreq we could be changing the bus rate.
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (97 commits)
USB: qcserial: add device id for HP devices
USB: isp1760: Add a delay before reading the SKIPMAP registers in isp1760-hcd.c
USB: allow malformed LANGID descriptors
USB: pxa27x_udc: typo fixes and code cleanups
USB: gadget: gadget zero uses new suspend/resume hooks
USB: gadget: composite device-level suspend/resume hooks
USB: r8a66597-hcd: suspend/resume support
USB: more u32 conversion after transfer_buffer_length and actual_length
USB: Fix cp2101 USB serial device driver termios functions for console use
USB: CP2101 New Device ID
USB: ipaq: handle 4 endpoint devices
USB: S3C: Move usb-control.h to platform include
USB: ohci-hcd: Add ARCH_S3C24XX to the ohci-s3c2410.c glue
USB: pedantic: spelling correction in comment for ch9.h
USB: host: fix sparse warning: Using plain integer as NULL pointer
USB: ohci-s3c2410: fix name of bus clock
USB: ohci-s3c2410: remove <mach/hardware.h> include
USB: serial: rename cp2101 driver to cp210x
USB: CP2101 Reduce Error Logging
USB: CP2101 Support AN205 baud rates
...
The usb-control.h is needed by ohci-s3c2410.c for both S3C24XX and S3C64XX
architectures, so move it to <plat/usb-control.h>
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
As noted by Russell King, the sleep code path is not
elegant and makes use of leaving items on the stack
between calls.
Change the code that does the following:
if (s3c_cpu_save(regs_save) == 0) {
flush_cache_all();
S3C_PMDBG("preparing to sleep\n");
pm_cpu_sleep();
}
to simply call s3c_cpu_save, and let that do the
necessary calls to quiesce and sleep the system.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
The definitions of S3C2412_IISMOD_SDF_MSB and S3C2412_IISMOD_SDF_LSB
are incorrect, being the same S3C2412_IISMOD_SDF_IIS which is the
only correct one in this series.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
The PM CRC checking code kmallocs an area to save a set of
CRC values during suspend. This triggers a warning due to the
call of a function that might sleep whilst the system is not
in a valid state to do so.
Move the allocation and free to points in the suspend and resume
process where they can call a function that might-sleep.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
When doing the CRC check of the memory, avoid checking
the page that our stack is residing in as this changes
during the execution of the suspend and resume.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Change the way the UART state is saved over suspend to allow the s3c64xx
code to modify the settings on resume to avoid any illegal state changes
to the UART clocks. This will also allow us to save the UDIVSLOT register
on newer SoCs.
Move to using a structure for the UART use the extant Kconfig configuration
specifying the number of UARTs.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Rename s3c2410_cpu_resume to s3c_cpu_resume and s3c2410_cpu_save to
s3c_cpu_save to remove the CPU specific naming of these functions
which are now in the generic PM code.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Since we have moved a large proportion of the PM code to the common
support area, remove the cpu specific name from the initialisation
function.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Move the IRQ_EINT sleep control to be available to all
s3c impelmentations. Since s3c_irqext_wake is not large,
place it in arch/arm/plat-s3c/pm.c as adding it to a new
file would be a waste of compile time.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Fix warnings from struct resource being bigger than unsigned long by
forcing the type. We are only a 32bit platform so no physical memory
addresses will be too big to fit in this.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Split the optional memory check code out of the pm.c file
as it is quite a big #ifdef block and as-such can be moved
out and simply compiled when the configuration is set.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Start moving the PM code by moving all the common support functions
to a common location in arch/arm/plat-s3c. With the move we rename
the functions from s3cxxx_ to s3c_ to fit the new location.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Move the <plat/pm.h> header to plat-s3c as preparation
for moving parts of the s3c24xx pm support which are
common into the plat-s3c support.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Add the initial code to support the S3C64XX I2S hardware using the
s3c-i2s-v2 core code.
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
The <mach/audio.h> file needs to be common to both ARCH_S3C2410 and
ARCH_S3C64XX as they share common driver code, so move it to <plat/audio.h>.
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Move the IIS headers to their correct place.
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Ensure __iomem attribute is __force 'd off in the minimal
__raw_writel() implementation.
Signed-off-by: Simtec Linux Team <linux@simtec.co.uk>
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
