Commits · cd6c5586524e10512b910b3ff44465f0aaf5cd1b · Kirill Smelkov / linux

01 Oct, 2013 40 commits

Staging/iio/adc/touchscreen/MXS: remove old touchscreen detection implementation · cd6c5586

Juergen Beisert authored Sep 23, 2013

Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Tested-by: Marek Vasut <marex@denx.de>
Acked-by: Marek Vasut <marex@denx.de>
Tested-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

CC: linux-arm-kernel@lists.infradead.org
CC: linux-input@vger.kernel.org
CC: devel@driverdev.osuosl.org
CC: Marek Vasut <marex@denx.de>
CC: Fabio Estevam <fabio.estevam@freescale.com>

cd6c5586

Staging/iio/adc/touchscreen/MXS: add interrupt driven touch detection · dee05308

Juergen Beisert authored Sep 23, 2013

For battery driven systems it is a very bad idea to collect the touchscreen
data within a kernel busy loop.

This change uses the features of the hardware to delay and accumulate samples in
hardware to avoid a high interrupt and CPU load.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Tested-by: Marek Vasut <marex@denx.de>
Acked-by: Marek Vasut <marex@denx.de>
Tested-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

CC: linux-arm-kernel@lists.infradead.org
CC: linux-input@vger.kernel.org
CC: devel@driverdev.osuosl.org
CC: Marek Vasut <marex@denx.de>
CC: Fabio Estevam <fabio.estevam@freescale.com>
CC: Dmitry Torokhov <dmitry.torokhov@gmail.com>
CC: linux-input@vger.kernel.org

dee05308

Staging/iio/adc/touchscreen/MXS: add i.MX23 support to the LRADC touchscreen driver · 8c06f714

Juergen Beisert authored Sep 23, 2013

Distinguish i.MX23 and i.MX28 at runtime and do the same for both SoC at least
for the 4 wire touchscreen.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Tested-by: Marek Vasut <marex@denx.de>
Acked-by: Marek Vasut <marex@denx.de>
Teseted-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

CC: linux-arm-kernel@lists.infradead.org
CC: linux-input@vger.kernel.org
CC: devel@driverdev.osuosl.org
CC: Marek Vasut <marex@denx.de>
CC: Fabio Estevam <fabio.estevam@freescale.com>

8c06f714

Staging/iio/adc/touchscreen/MXS: simplify register access · f0b83cc8

Juergen Beisert authored Sep 23, 2013

Replace the individual register access by a few shared access function to make the
code easier to read and in order to add the i.MX23 SoC in the next step.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Tested-by: Marek Vasut <marex@denx.de>
Acked-by: Marek Vasut <marex@denx.de>
Tested-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

CC: linux-arm-kernel@lists.infradead.org
CC: linux-input@vger.kernel.org
CC: devel@driverdev.osuosl.org
CC: Marek Vasut <marex@denx.de>
CC: Fabio Estevam <fabio.estevam@freescale.com>

f0b83cc8

Staging/iio/adc/touchscreen/MXS: separate i.MX28 specific register bits · 7e4d4a6f

Juergen Beisert authored Sep 23, 2013

In order to support i.MX23 and i.MX28 within one driver we need to separate the
register definitions which differ in both SoC variants.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Tested-by: Marek Vasut <marex@denx.de>
Acked-by: Marek Vasut <marex@denx.de>
Tested-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

CC: linux-arm-kernel@lists.infradead.org
CC: linux-input@vger.kernel.org
CC: devel@driverdev.osuosl.org
CC: Marek Vasut <marex@denx.de>
CC: Fabio Estevam <fabio.estevam@freescale.com>

7e4d4a6f

Staging/iio/adc/touchscreen/MXS: distinguish i.MX23's and i.MX28's LRADC · ccff5297

Juergen Beisert authored Sep 23, 2013

The LRADC units in i.MX23 and i.MX28 differ and we need to distinguish both
SoC variants in order to make the touchscreen work on i.MX23
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Tested-by: Marek Vasut <marex@denx.de>
Acked-by: Marek Vasut <marex@denx.de>
Tested-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

CC: linux-arm-kernel@lists.infradead.org
CC: linux-input@vger.kernel.org
CC: devel@driverdev.osuosl.org
CC: Fabio Estevam <fabio.estevam@freescale.com>
CC: Jonathan Cameron <jic23@cam.ac.uk>

ccff5297

Staging/iio/adc/touchscreen/MXS: add proper clock handling · 18da755d

Juergen Beisert authored Sep 23, 2013

The delay units inside the LRADC depend on the presence of a 2 kHz clock.
This change enables the clock to be able to use the delay unit for the
touchscreen part of the driver.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Tested-by: Marek Vasut <marex@denx.de>
Acked-by: Marek Vasut <marex@denx.de>
Tested-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

18da755d

staging:iio:hmc5843: Introduce helper functions to show/check list of int pairs · dd28e482
Peter Meerwald authored Sep 19, 2013
```
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
```
dd28e482

staging:iio:hmc5843: Tighten comments · 9728fe3f

Peter Meerwald authored Sep 19, 2013

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

9728fe3f

staging:iio:hmc5843: Remove unused LSB register #defines · 511c81e6
Peter Meerwald authored Sep 19, 2013
```
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
```
511c81e6

staging:iio:hmc5843: Use INFO_SAMP_FREQ · d4dc0a34

Peter Meerwald authored Sep 19, 2013

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

d4dc0a34

staging:iio:hmc5843: Rewrite init function · 8e2e2971

Peter Meerwald authored Sep 19, 2013

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

8e2e2971

staging:iio:hmc5843: Add pointer to i2c client to data struct · 8a5c1913

Peter Meerwald authored Sep 19, 2013

and use it to simplify code
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

8a5c1913

iio: Update unit of the voltage scale in the documentation · c2b2db71

Lars-Peter Clausen authored Sep 28, 2013

The documentation says that the result of raw * scale should be in microvolts,
but in reallity all drivers actually report the scale so that the result is in
millivolts. So update the documentation to match reallity.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

c2b2db71

staging:iio:spear_adc: Report scale as fractional value · bfbab2bc

Lars-Peter Clausen authored Sep 28, 2013

Move the complexity of calculating the fixed point scale to the core.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Stefan Roese <sr@denx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

bfbab2bc

staging:iio:ad7746: Report scale as fractional value · 4f9be985

Lars-Peter Clausen authored Sep 28, 2013

Move the complexity of calculating the fixed point scale to the core.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

4f9be985

staging:iio:ad799x: Report scale as fractional value · b740f48a

Lars-Peter Clausen authored Sep 28, 2013

Move the complexity of calculating the fixed point scale to the core.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

b740f48a

staging:iio:ad7780: Report scale as fractional value · c0d01412

Lars-Peter Clausen authored Sep 28, 2013

Move the complexity of calculating the fixed point scale to the core.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

c0d01412

staging:iio:ad7606: Report scale as fractional value · 9324131b

Lars-Peter Clausen authored Sep 28, 2013

Move the complexity of calculating the fixed point scale to the core.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

9324131b

staging:iio:ad7280a: Report scale as fractional value · d6570b33

Lars-Peter Clausen authored Sep 28, 2013

Move the complexity of calculating the fixed point scale to the core.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

d6570b33

iio:max1363: Report scale as fractional value · b2171677

Lars-Peter Clausen authored Sep 28, 2013

Move the complexity of calculating the fixed point scale to the core.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

b2171677

iio:at91: Report scale as fractional value · c45e561e

Lars-Peter Clausen authored Sep 28, 2013

Move the complexity of calculating the fixed point scale to the core.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Josh Wu <josh.wu@atmel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

c45e561e

iio:ad7791: Report scale as fractional value · 488a2182

Lars-Peter Clausen authored Sep 28, 2013

Move the complexity of calculating the fixed point scale to the core.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

488a2182

iio:ad7476: Report scale as fractional value · d88c89db

Lars-Peter Clausen authored Sep 28, 2013

Move the complexity of calculating the fixed point scale to the core.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

d88c89db

iio:ad7266: Report scale as fractional value · 2ebc39c0

Lars-Peter Clausen authored Sep 28, 2013

Move the complexity of calculating the fixed point scale to the core.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

2ebc39c0

iio:mcp4725: Report scale as fractional value · b117f96f

Lars-Peter Clausen authored Sep 28, 2013

Move the complexity of calculating the fixed point scale to the core.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

b117f96f

iio:max517: Report scale as fractional value · 998f129c

Lars-Peter Clausen authored Sep 28, 2013

Move the complexity of calculating the fixed point scale to the core.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

998f129c

iio:ad5791: Report scale as fractional value · 213983cd

Lars-Peter Clausen authored Sep 28, 2013

Move the complexity of calculating the fixed point scale to the core.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

213983cd

iio:ad5764: Report scale as fractional value · 3f83dae8

Lars-Peter Clausen authored Sep 28, 2013

Move the complexity of calculating the fixed point scale to the core.

Also fix a off by one error in the comment describing the transfer function.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

3f83dae8

iio:ad5755: Report scale as fractional value · ae76751f

Lars-Peter Clausen authored Sep 28, 2013

Move the complexity of calculating the fixed point scale to the core.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

ae76751f

iio:ad5686: Report scale as fractional value · ecc7e948

Lars-Peter Clausen authored Sep 28, 2013

Move the complexity of calculating the fixed point scale to the core.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

ecc7e948

iio:ad5624r: Report scale as fractional value · 14229e87

Lars-Peter Clausen authored Sep 28, 2013

Move the complexity of calculating the fixed point scale to the core.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

14229e87

iio:ad5504: Report scale as fractional value · 54ea1433

Lars-Peter Clausen authored Sep 28, 2013

Move the complexity of calculating the fixed point scale to the core.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

54ea1433

iio:ad5446: Report scale as fractional value · 0a99b601

Lars-Peter Clausen authored Sep 28, 2013

Move the complexity of calculating the fixed point scale to the core.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

0a99b601

iio:ad5421: Report scale as fractional value · bc7c49bc

Lars-Peter Clausen authored Sep 28, 2013

Move the complexity of calculating the fixed point scale to the core.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

bc7c49bc

iio:ad5380: Report scale as fractional value · 4f2c1885

Lars-Peter Clausen authored Sep 28, 2013

Move the complexity of calculating the fixed point scale to the core.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

4f2c1885

iio:ad5360: Report scale as fractional value · ca3bc8b6

Lars-Peter Clausen authored Sep 28, 2013

Move the complexity of calculating the fixed point scale to the core.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

ca3bc8b6

iio:ad5064: Report scale as fractional value · 25682ae5

Lars-Peter Clausen authored Sep 28, 2013

Move the complexity of calculating the fixed point scale to the core.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

25682ae5

IIO: call sensor hub open close function · 7d3c192d

Srinivas Pandruvada authored Sep 18, 2013

Call hid_sensor_hub_device_open when user space opens device and call
hid_sensor_hub_device_close when device is closed. This helps in
saving power.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

7d3c192d

HID: Delay opening HID device · 1df3a401

Srinivas Pandruvada authored Sep 18, 2013

Don't call hid_open_device till there is actually an user. This saves
power by not opening underlying transport for HID. Also close device
if there are no active mfd client using HID sensor hub.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

1df3a401