Commit Graph

322613 Commits (d3b64c59341ac88b37a4474f8dee86b0d37accca)

Author SHA1 Message Date
Thomas Abraham d3b64c5934 i2c: s3c2410: use clk_prepare_enable and clk_disable_unprepare
Convert clk_enable/clk_disable to clk_prepare_enable/clk_disable_unprepare
calls as required by common clock framework.

Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-10-06 15:57:25 +02:00
Jean Pihet 3db11feffc ARM: OMAP: convert I2C driver to PM QoS for MPU latency constraints
Convert the driver from the outdated omap_pm_set_max_mpu_wakeup_lat
API to the new PM QoS API.
Since the constraint is on the MPU subsystem, use the PM_QOS_CPU_DMA_LATENCY
class of PM QoS. The resulting MPU constraints are used by cpuidle to
decide the next power state of the MPU subsystem.

The I2C device latency timing is derived from the FIFO size and the
clock speed and so is applicable to all OMAP SoCs.

Signed-off-by: Jean Pihet <j-pihet@ti.com>
Acked-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-10-06 13:43:38 +02:00
Lee Jones 43fea5813c i2c: nomadik: Add Device Tree support to the Nomadik I2C driver
Here we apply the bindings required for successful Device Tree
probing of the i2c-nomadik driver.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-10-06 13:20:33 +02:00
Thomas Kavanagh a76e7c6821 i2c: algo: pca: Fix chip reset function for PCA9665
The parameter passed to pca9665_reset is adap->data (which is bus driver
specific), not i2c_algp_pca_data *adap. pca9665_reset expects it to be
i2c_algp_pca_data *adap. All other wrappers from the algo call back to
the bus driver, which knows to handle its custom data. Only pca9665_reset
resides inside the algorithm code and does not know how to handle a custom
data structure. This can result in a kernel crash.

Fix by re-factoring pca_reset() from a macro to a function handling chip
specific code, and only call adap->reset_chip() if the chip is not PCA9665.

Signed-off-by: Thomas Kavanagh <tkavanagh@juniper.net>
Signed-off-by: Guenter Roeck <groeck@juniper.net>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-10-06 13:14:36 +02:00
Joakim Tjernlund 0c25aefa35 i2c: mpc: Wait for STOP to hit the bus
mpc_i2c_stop() only initiates STOP but does not wait for it to
hit the I2C bus. This is a problem when using I2C devices which
uses fairly long clock stretching just before STOP if you also
have an i2c-mux which may switch to another bus before STOP has
been processed.

Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-09-14 16:01:04 +02:00
Murali Karicheri 2bdbfa9c4a i2c: davinci: preparation for switch to common clock framework
As a first step towards migrating davinci platforms to use common clock
framework, replace all instances of clk_enable() with clk_prepare_enable()
and clk_disable() with clk_disable_unprepare(). Until the platform is
switched to use the CONFIG_HAVE_CLK_PREPARE Kconfig variable, this just
adds a might_sleep() call and would work without any issues.

This will make it easy later to switch to common clk based implementation
of clk driver from DaVinci specific driver.

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-09-14 15:20:33 +02:00
Florian Vaussard c5d3cd6dc2 omap-i2c: fix incorrect log message when using a device tree
When booting using a device tree, the adapter number is dynamically
assigned after the log message is sent.
This patch modifies the log message to get a correct adapter id.

Signed-off-by: Florian Vaussard <florian.vaussard@epfl.ch>
Tested-by: Benoit Cousson <b-cousson@ti.com>
Acked-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-09-12 15:54:14 +02:00
Felipe Balbi 0bdfe0cb80 i2c: omap: sanitize exit path
move the goto out label one line down, so that
it can be used when stat is read as zero. All
other exits, can be done with a break statement.

While at that, also break out as soon as we
complete draining IRQ, since at that time
we know we transferred everything there was
to be transferred.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-09-12 15:04:18 +02:00
Felipe Balbi 6d8451d55a i2c: omap: switch over to autosuspend API
this helps us reduce unnecessary pm transitions
in case we have another i2c message starting soon.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-09-12 15:04:10 +02:00
Felipe Balbi e3a36b207f i2c: omap: remove unnecessary pm_runtime_suspended check
before starting any messages we call pm_runtime_get_sync()
which will make sure that by the time we program a transfer
and our IRQ handler gets called, we're not suspended
anymore.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-09-12 15:04:03 +02:00
Felipe Balbi 3b2f8f82da i2c: omap: switch to threaded IRQ support
for OMAP2, we can easily switch over to threaded
IRQs on the I2C driver. This will allow us to
spend less time in hardirq context.

Signed-off-by: Felipe Balbi <balbi@ti.com>
[Trivial formating changes]
Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-09-12 15:03:56 +02:00
Shubhrajyoti D d741d0c792 i2c: omap: remove redundant status read
Currently omap_i2c_ack_stat doesn't use the stat variable.
After the read of the I2C_STAT_REG it is not used.
Remove the redundant read of the status register.

Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-09-12 15:03:48 +02:00
Felipe Balbi b07be0f3b9 i2c: omap: get rid of the "complete" label
we can ack stat and complete the command from
the errata handling itself.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-09-12 15:03:41 +02:00
Felipe Balbi dd74548dde i2c: omap: resize fifos before each message
This patch will try to avoid the usage of
draining feature by reconfiguring the FIFO
the start condition of each message based
on the message's size.

By doing that, we will be better utilizing
the FIFO when doing big transfers.

While at that also drop the now unneeded
check for dev->buf_len as we always know
the amount of data to be transmitted.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-09-12 15:03:34 +02:00
Felipe Balbi 4a7ec4eda5 i2c: omap: simplify IRQ exit path
instead of having multiple return points, use
a goto statement to make that clearer.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-09-12 15:03:26 +02:00
Felipe Balbi 6a85ced2cf i2c: omap: always return IRQ_HANDLED
Always return IRQ_HANDLED otherwise we could get our IRQ line disabled due
to many spurious IRQs.

Signed-off-by: Felipe Balbi <balbi@ti.com>
[Trivial changes to commitlogs]
Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-09-12 15:03:19 +02:00
Felipe Balbi 3ff4443f88 i2c: omap: simplify errata check
omap_i2c_dev is allocated with kzalloc(),
so we need not initialize b_hw to zero.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-09-12 15:03:12 +02:00
Felipe Balbi 079d8af24b i2c: omap: bus: add a receiver flag
that way we can ignore TX IRQs while in receiver
mode and ignore RX IRQs while in transmitter mode.

Signed-off-by: Felipe Balbi <balbi@ti.com>
[Remove unnecessary braces]
Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-09-12 15:03:05 +02:00
Felipe Balbi ac79e4b249 i2c: omap: switch to platform_get_irq()
that's a nice helper from drivers core which
will give us the exact IRQ number, instead
of a pointer to an IRQ resource.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-09-12 15:02:57 +02:00
Felipe Balbi 1d7afc9594 i2c: omap: ack IRQ in parts
According to flow diagrams on OMAP TRMs,
we should ACK the IRQ as they happen.

Signed-off-by: Felipe Balbi <balbi@ti.com>
[Ack the stat OMAP_I2C_STAT_AL in case of arbitration lost]
Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-09-12 15:02:50 +02:00
Felipe Balbi 66b9298878 i2c: omap: switch over to do {} while loop
this will make sure that we execute at least once.
No functional changes otherwise.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-09-12 15:02:43 +02:00
Felipe Balbi 3312d25e1a i2c: omap: re-factor receive/transmit data loop
re-factor the common parts to a separate function,
so that code is easier to read and understand.

No functional changes.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-09-12 15:02:36 +02:00
Felipe Balbi 4151e74177 i2c: omap: improve i462 errata handling
Make it not depend on ISR's local variables
in order to make it easier to re-factor the
transmit data loop.
Also since we are waiting for XUDF(Transmitter underflow) just before
writing data lets not flag the underflow.
This is anyways going to go once we write
the data.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-09-12 15:02:28 +02:00
Felipe Balbi 6d9939f651 i2c: omap: split out [XR]DR and [XR]RDY
While they do pretty much the same thing, there
are a few peculiarities. Specially WRT erratas,
it's best to split those out and re-factor the
read/write loop to another function which both
cases call.

This last part will be done on another patch.

While at that, also avoid an unncessary register
read since dev->fifo_len will always contain the
correct amount of data to be transferred.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-09-12 15:02:21 +02:00
Felipe Balbi 540a4790f7 i2c: omap: simplify omap_i2c_ack_stat()
stat & BIT(1) is the same as BIT(1), so let's
simplify things a bit by removing "stat &" from
all omap_i2c_ack_stat() calls.

Code snippet (extremely simplified):

if (stat & NACK) {
        ...
        omap_i2c_ack_stat(dev, stat & NACK);
}

if (stat & RDR) {
        ...
        omap_i2c_ack_stat(dev, stat & RDR);
}

and so on. The tricky place is only WRT errata handling, for example:

if (*stat & (NACK | AL)) {
        omap_i2c_ack_stat(dev, *stat & (XRDY | XDR));
        ...
}

but in this case, the errata says we must clear XRDY and XDR if that
errata triggers, so if they just got enabled or not, it doesn't matter.

Another tricky place is RDR | RRDY (likewise for XDR | XRDY):

if (stat & (RDR | RRDY)) {
        ...
        omap_i2c_ack_stat(dev, stat & (RDR | RRDY));
}

again here there will be no issues because those IRQs never fire
simultaneously and one will only after after we have handled the
previous, that's because the same FIFO is used anyway and we won't shift
data into FIFO until we tell the IP "hey, I'm done with the FIFO, you
can shift more data"

Signed-off-by: Felipe Balbi <balbi@ti.com>
Reviewed-by : Santosh Shilimkar <santosh.shilimkar@ti.com>
[Added the explaination from the discurssion to the commit logs]
Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-09-12 15:02:14 +02:00
Felipe Balbi c55edb9902 i2c: omap: add blank lines
trivial patch to aid readability. No functional
changes.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-09-12 15:02:06 +02:00
Felipe Balbi 2049b5bcdd i2c: omap: decrease indentation level on data handling
The patch intends to decrease the indentation level on the
data handling
by using the fact that else of if (dev->buf_len) is same as
if (!dev->buf_len)

if (dev->buf_len) {
	aaa;
} else {
	bbb;
	break;
}

to

if (!dev->buf_len) {
        bbb;
        break;
}
aaa;

Hence no functional changes.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Reviewed-by : Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-09-12 15:01:59 +02:00
Felipe Balbi baf3d7b721 i2c: omap: simplify num_bytes handling
trivial patch, no functional changes

If the fifo is disabled or fifo_size is 0 the num_bytes
is set to 1. Else it is set to fifo_size or in case of a
draining interrupt the remaining bytes in the buff stat.
So the zero check is redundant and can be safely optimised.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Reviewed-by : Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-09-12 15:01:52 +02:00
Felipe Balbi d9ebd04d34 i2c: omap: switch to devm_* API
that helps deleting some boiler plate code
and lets driver-core manage our resources
for us.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-09-12 15:01:45 +02:00
Ludovic Desroches fbc1871511 ARM: dts: add twi nodes for atmel boards
Still use i2c-gpio on boards which have a SoC with a TWI IP which
doesn't have clock stretching in transmission mode.

Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-09-12 14:49:16 +02:00
Ludovic Desroches 05dcd361a2 ARM: dts: add twi nodes for atmel SoCs
Add TWI nodes for atmel SoCs but keep i2c-gpio ones in order to let the
choice to the user in dts files.

Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-09-12 14:49:16 +02:00
Ludovic Desroches f7d19b9065 ARM: at91: add clocks for I2C DT entries
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Nikolaus Voss <n.voss@weinmann.de>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-09-12 14:49:15 +02:00
Ludovic Desroches 70d46a241e i2c: at91: add dt support to i2c-at91
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Nikolaus Voss <n.voss@weinmann.de>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-09-12 14:49:15 +02:00
Ludovic Desroches 94e734655f ARM: at91: do not configure at91sam9g10 twi pio as open-drain
As indicated in the datasheet, TWD and TWCK must not be programmed as
open-drain.

Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Nikolaus Voss <n.voss@weinmann.de>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-09-12 14:49:14 +02:00
Nikolaus Voss 774c8018d2 arm: at91: G45 TWI: remove open drain setting for twi function gpios
The G45 datasheets explicitly states that setting the open drain property
on peripheral function gpios is not allowed. (How about other A91 chips?)

Signed-off-by: Nikolaus Voss <n.voss@weinmann.de>
Tested-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Reviewed-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-09-12 14:49:13 +02:00
Nikolaus Voss fac368a040 i2c: at91: add new driver
This driver has the following properties compared to the old driver:
1. Support for multiple interfaces.
2. Interrupt driven I/O as opposed to polling/busy waiting.
3. Support for _one_ repeated start (Sr) condition, which is enough
   for most real-world applications including all SMBus transfer types.
   (The hardware does not support issuing arbitrary Sr conditions on the
    bus.)

testing: SoC: at91sam9g45
	 - BQ20Z80 battery SMBus client.
	 - on a 2.6.38 kernel with several i2c clients (temp-sensor,
	   audio-codec, touchscreen-controller, w1-bridge, io-expanders)

Signed-off-by: Nikolaus Voss <n.voss@weinmann.de>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Tested-by: Hubert Feurstein <h.feurstein@gmail.com>
Tested-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Reviewed-by: Nicolas Ferre <nicolas.ferre@atmel.com>

[wsa: squashed with the following patches from Ludovic to have some flaws
fixed:
        i2c: at91: use managed resources
        i2c: at91: add warning about transmission issues for some devices
        i2c: at91: use an id table for SoC dependent parameters
]

Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-09-12 14:49:13 +02:00
Nikolaus Voss a879e9c34b i2c: at91: remove old polling driver
It will get replaced by a superior one. Safe to remove since this one
depends on BROKEN anyhow.

Signed-off-by: Nikolaus Voss <n.voss@weinmann.de>
Tested-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Reviewed-by: Nicolas Ferre <nicolas.ferre@atmel.com>

[wsa: added commit message]

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-09-12 14:49:12 +02:00
Nikolaus Voss af2a5f09fb Replace clk_lookup.con_id with clk_lookup.dev_id entries for twi clk
The old driver used con_id clock entries. Convert to use dev_id
for clock lookup via standard method.

Signed-off-by: Nikolaus Voss <n.voss@weinmann.de>
Tested-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Reviewed-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-09-12 14:48:56 +02:00
Linus Walleij e89cec7ff8 i2c: nomadik: stop fetching the regulator
The regulator fetched by the Nomadik I2C driver is actually a
voltage domain regulator. Stop doing this in the driver and
let the power domain code handle any regulators, as discussed
on the list.

Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-09-12 12:38:10 +02:00
Heiko Schocher 5c3d8a46ac i2c: davinci: add OF support
add of support for the davinci i2c driver.

Signed-off-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>

[wsa: fix indentation in the binding description]

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-09-12 11:37:24 +02:00
Fabio Estevam 002f002d95 i2c: imx: Use dev_dbg logging style
Use dev_dbg logging style as it is done in other parts of this driver.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-09-11 23:40:53 +02:00
Fabio Estevam 06d141e9b6 i2c: imx: Use dev_info to indicate that i2c driver was succesfully registered
It is useful information in dmesg to have a message indicating that the i2c
driver was succesfully registered, so promote it to dev_info.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-09-11 23:40:53 +02:00
Linus Torvalds 55d512e245 Linux 3.6-rc5 2012-09-08 16:43:45 -07:00
Linus Torvalds 32d687cad3 Merge branch 'fixes-for-3.6' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping
Pull DMA-mapping fixes from Marek Szyprowski:
 "Another set of fixes for ARM dma-mapping subsystem.

  Commit e9da6e9905 replaced custom consistent buffer remapping code
  with generic vmalloc areas.  It however introduced some regressions
  caused by limited support for allocations in atomic context.  This
  series contains fixes for those regressions.

  For some subplatforms the default, pre-allocated pool for atomic
  allocations turned out to be too small, so a function for setting its
  size has been added.

  Another set of patches adds support for atomic allocations to
  IOMMU-aware DMA-mapping implementation.

  The last part of this pull request contains two fixes for Contiguous
  Memory Allocator, which relax too strict requirements."

* 'fixes-for-3.6' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping:
  ARM: dma-mapping: IOMMU allocates pages from atomic_pool with GFP_ATOMIC
  ARM: dma-mapping: Introduce __atomic_get_pages() for __iommu_get_pages()
  ARM: dma-mapping: Refactor out to introduce __in_atomic_pool
  ARM: dma-mapping: atomic_pool with struct page **pages
  ARM: Kirkwood: increase atomic coherent pool size
  ARM: DMA-Mapping: print warning when atomic coherent allocation fails
  ARM: DMA-Mapping: add function for setting coherent pool size from platform code
  ARM: relax conditions required for enabling Contiguous Memory Allocator
  mm: cma: fix alignment requirements for contiguous regions
2012-09-08 16:22:43 -07:00
Linus Torvalds 11be4bc6a1 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input subsystem updates from Dmitry Torokhov.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: wacom - add support for EMR on Cintiq 24HD touch
  Input: i8042 - add Gigabyte T1005 series netbooks to noloop table
  Input: imx_keypad - reset the hardware before enabling
  Input: edt-ft5x06 - fix build error when compiling wthout CONFIG_DEBUG_FS
2012-09-08 16:20:59 -07:00
Linus Torvalds 5b6e7f1c16 Merge branch 'upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Pull HID updates from Jiri Kosina:
 "It contains a fix for Eaton Ellipse MAX UPS from Alan Stern,
  performance improvement (not processing debug data if noone is
  interested), by Henrik Rydberg, and allowing tpkbd-driven devices to
  work even with generic driver in a crippled mode, by Andres Freund."

* 'upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: tpkbd: work even if the new Lenovo Keyboard driver is not configured
  HID: Only dump input if someone is listening
  HID: add NOGET quirk for Eaton Ellipse MAX UPS
2012-09-07 12:29:38 -07:00
Andres Freund aad932e75c HID: tpkbd: work even if the new Lenovo Keyboard driver is not configured
c1dcad2d32 added a new driver configured by
HID_LENOVO_TPKBD but made the hid_have_special_driver entry non-optional which
lead to a recognized but non-working device if the new driver wasn't
configured (which is the correct default).

Signed-off-by: Andres Freund <andres@anarazel.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-09-07 17:11:12 +02:00
Linus Torvalds bf71d0e18e Bug-fixes:
* Fix for TLB flushing introduced in v3.6
  * Fix Xen-SWIOTLB not using proper DMA mask - device had 64bit but
    in a 32-bit kernel we need to allocate for coherent pages from a
    32-bit pool.
  * When trying to re-use P2M nodes we had a one-off error and triggered
    a BUG_ON check with specific CONFIG_ option.
  * When doing FLR in Xen-PCI-backend we would first do FLR then save the
    PCI configuration space. We needed to do it the other way around.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.12 (GNU/Linux)
 
 iQEcBAABAgAGBQJQSS7TAAoJEFjIrFwIi8fJOBQH/03JBKBbFvewhop8T5Jww2c9
 SWmMgzDm5HkxeWj5XnM+zlLoHrYFFu7tyuRLiny4weE0LdRl4adJ1TVpStxap/b6
 MSQKe+tZevslaReBOsMpbCk3z7fEWNlAcpm6wMp1xYmLoHcr0JMpOCmzigbf7dwM
 F4UWULheih9ME3UeqDAU8qgvfv6ccZ9vempO4TDWKjxfxfWODCNMRx+Ny+C7NNRk
 QeoInHJUqcRkg0q0OIciF/YYDmn8hIH7HgfqomuMb6rEv2LOieLnWVuniEPWM75s
 lECxro7v2Z9s1Std0WWKcFp8VZpI2scnQYU8aL8TpewHcbzKHQYyipuKPu7FiEQ=
 =GfLE
 -----END PGP SIGNATURE-----

Merge tag 'stable/for-linus-3.6-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen

Pull Xen bug-fixes from Konrad Rzeszutek Wilk:
 * Fix for TLB flushing introduced in v3.6
 * Fix Xen-SWIOTLB not using proper DMA mask - device had 64bit but
   in a 32-bit kernel we need to allocate for coherent pages from a
   32-bit pool.
 * When trying to re-use P2M nodes we had a one-off error and triggered
   a BUG_ON check with specific CONFIG_ option.
 * When doing FLR in Xen-PCI-backend we would first do FLR then save the
   PCI configuration space. We needed to do it the other way around.

* tag 'stable/for-linus-3.6-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen/pciback: Fix proper FLR steps.
  xen: Use correct masking in xen_swiotlb_alloc_coherent.
  xen: fix logical error in tlb flushing
  xen/p2m: Fix one-off error in checking the P2M tree directory.
2012-09-06 17:16:42 -07:00
Linus Torvalds f8b9cf0f31 PCI updates for v3.6:
Power management
     - PCI/PM: Enable D3/D3cold by default for most devices
     - PCI/PM: Keep parent bridge active when probing device
     - PCI/PM: Fix config reg access for D3cold and bridge suspending
     - PCI/PM: Add ABI document for sysfs file d3cold_allowed
   Core
     - PCI: Don't print anything while decoding is disabled
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.10 (GNU/Linux)
 
 iQIcBAABAgAGBQJQSQ9nAAoJEPGMOI97Hn6zc+EQAMWlPJUAUR0uY2mnz9KANGxQ
 7yHsgoCj1lbMNMrlyD9CveE1b5PCUwL8oiSnsLvqUwsdvNr14FGhCCtTYotoDEBh
 2QuSkI2rG1y+2Kr9Lrd4TrzdcCfBjQ3vUIhU1va2uPjrf8fsPQCvm0Yn8gC/SKDg
 qV452021IFxkeO0PIZ9z7H4uaOIuqqb1mnqXImKZ3zUMNfNl0xLaZfrWUK5DG6qn
 Mgm25qCNZ70Hj5mM/AqhKLsWH2ruMsZuA/5QvdHHJmi0pGF8OkFtvcKNv785Ajlg
 Ar5YOtLaeszyVpueNAWzevH+1m86D6USW1yKnlxgVigVpxFNhHs2OHr4kU1IzwKU
 AkMdDCyGCBXoEBiXwozsMSVX4gi87k91ETpe8E/WlU5gkLN8hqBO8TJlCsLBAXGV
 7RIWJPeoem6UjoYYbqUe8Z4/ZPbSgWgdVkSI9PLcVsVrPQZR0Z7f3JM5Kcdgooc9
 iPQleMK0x5YPtsFHVqCJLD6A4xaWR8VZaK3hHSziYlyOjPpIJ0vErh5uxh6pWBWo
 wAzQDp/dfmOBhld7RzzQQrOyHHIPR7+jHghH7/zpgAhaaGhAeqMXX4Y+R2CKt9yR
 iNW6QlHasaBPQHehWjstMKlwR7iXZDORMtEv+tAyg2m1ZmgWi7Aut2Mk/6e3Z3Jy
 +d2tn7b5aBTc3y8dcVBP
 =zFNa
 -----END PGP SIGNATURE-----

Merge tag '3.6-pci-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:
 "Power management
    - PCI/PM: Enable D3/D3cold by default for most devices
    - PCI/PM: Keep parent bridge active when probing device
    - PCI/PM: Fix config reg access for D3cold and bridge suspending
    - PCI/PM: Add ABI document for sysfs file d3cold_allowed
  Core
    - PCI: Don't print anything while decoding is disabled"

* tag '3.6-pci-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  PCI: Don't print anything while decoding is disabled
  PCI/PM: Add ABI document for sysfs file d3cold_allowed
  PCI/PM: Fix config reg access for D3cold and bridge suspending
  PCI/PM: Keep parent bridge active when probing device
  PCI/PM: Enable D3/D3cold by default for most devices
2012-09-06 17:15:49 -07:00
Linus Torvalds eeea3ac912 arm-soc: bug fixes for v3.6-rc5
Mostly Renesas and Atmel bugfixes this time, targeting boot and build
 problems. A couple of patches for gemini and kirkwood as well. On a
 whole nothing very controversial.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABAgAGBQJQR+5tAAoJEIwa5zzehBx37ucQAIoOkQN6RqzXDkM4o6uhgtrS
 Fqt231762msmrrMpFwH/o0slgtyNIogHZfykoy2H8EXxJC93ZLYyVaqii+D2/H9O
 hRn7F6JGZ2R/h0+bYWAf3skX1ecRikxOF+knPmD4aolsnkddBeP6Rb0KIDgRqwRb
 pJxmlD8M68Dq7oKCMIT3EWP8pzXjJlVeS5Zli/X3XIxE5iTELQltK4St8oZWE2S1
 O2uOj/GuGgERiq39lIbf1YggEQZrZVf0a3a4koVFMCQ/kmT7LE1bzVp2lqsUNKpB
 2KG2GllTac2excjeg8Oyd4apy2mmGQimnIdKf1W3RfpVlnXUySw1XaPbjU1L6IcO
 xgZoLsxLgpeohK1T1mUsKEBtHWPKTBOTqGvquuvf8h7CAqRVPzX0nNmIt+JcfaTN
 lcdflHEks55eZfEad794DjwZdCG6/RXY5wDFeZKOzUTWK2//hlsRVlYHumpiRXIe
 UaVdFB//N2bzZiz+HYVBpd4TgEDhGm6WM3REYhMNVtnie/ubg/CiMW1cLuA3Xouk
 STvZ6EM/G0bwAM3PZOnBWxKlv7jAN0Zwhw0meK7W1Go1FrQsdroVmOMDL7PzPIWI
 kgtDzxLa6VV77EvBVJAPs2JZqdsRTa7r/AZLaBne/VvhikUVOdo2aOROPyn/vJqy
 /8Atzs6hU2BqDYStyK/z
 =hMrY
 -----END PGP SIGNATURE-----

Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC bug fixes from Olof Johansson:
 "Mostly Renesas and Atmel bugfixes this time, targeting boot and build
  problems.  A couple of patches for gemini and kirkwood as well.  On a
  whole nothing very controversial."

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: gemini: fix the gemini build
  ARM: shmobile: armadillo800eva: enable rw rootfs mount
  ARM: Kirkwood: Fix 'SZ_1M' undeclared here for db88f6281-bp-setup.c
  ARM: shmobile: mackerel: fixup usb module order
  ARM: shmobile: armadillo800eva: fixup: sound card detection order
  ARM: shmobile: marzen: fixup smsc911x id for regulator
  ARM: at91/feature-removal-schedule: delay at91_mci removal
  ARM: mach-shmobile: armadillo800eva: Enable power button as wakeup source
  ARM: mach-shmobile: armadillo800eva: Fix GPIO buttons descriptions
  ARM: at91/dts: remove partial parameter in at91sam9g25ek.dts
  ARM: at91/clock: fix PLLA overclock warning
  ARM: at91: fix rtc-at91sam9 irq issue due to sparse irq support
  ARM: at91: fix system timer irq issue due to sparse irq support
  ARM: shmobile: sh73a0: fixup RELOC_BASE of intca_irq_pins_desc
2012-09-06 10:23:58 -07:00