linux.git/drivers/pinctrl/berlin, branch v4.2

Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

2015-06-26T18:54:29+00:00

Pull ARM SoC driver updates from Kevin Hilman:
 "Some of these are for drivers/soc, where we're now putting
  SoC-specific drivers these days.  Some are for other driver subsystems
  where we have received acks from the appropriate maintainers.

  Some highlights:

   - simple-mfd: document DT bindings and misc updates
   - migrate mach-berlin to simple-mfd for clock, pinctrl and reset
   - memory: support for Tegra132 SoC
   - memory: introduce tegra EMC driver for scaling memory frequency
   - misc. updates for ARM CCI and CCN busses"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (48 commits)
  drivers: soc: sunxi: Introduce SoC driver to map SRAMs
  arm-cci: Add aliases for PMU events
  arm-cci: Add CCI-500 PMU support
  arm-cci: Sanitise CCI400 PMU driver specific code
  arm-cci: Abstract handling for CCI events
  arm-cci: Abstract out the PMU counter details
  arm-cci: Cleanup PMU driver code
  arm-cci: Do not enable CCI-400 PMU by default
  firmware: qcom: scm: Add HDCP Support
  ARM: berlin: add an ADC node for the BG2Q
  ARM: berlin: remove useless chip and system ctrl compatibles
  clk: berlin: drop direct of_iomap of nodes reg property
  ARM: berlin: move BG2Q clock node
  ARM: berlin: move BG2CD clock node
  ARM: berlin: move BG2 clock node
  clk: berlin: prepare simple-mfd conversion
  pinctrl: berlin: drop SoC stub provided regmap
  ARM: berlin: move pinctrl to simple-mfd nodes
  pinctrl: berlin: prepare to use regmap provided by syscon
  reset: berlin: drop arch_initcall initialization
  ...

pinctrl: make pinctrl_register() return proper error code

2015-06-10T12:49:52+00:00

Currently, pinctrl_register() just returns NULL on error, so the
callers can not know the exact reason of the failure.

Some of the pinctrl drivers return -EINVAL, some -ENODEV, and some
-ENOMEM on error of pinctrl_register(), although the error code
might be different from the real cause of the error.

This commit reworks pinctrl_register() to return the appropriate
error code and modifies all of the pinctrl drivers to use IS_ERR()
for the error checking and PTR_ERR() for getting the error code.

Signed-off-by: Masahiro Yamada 
Acked-by: Patrice Chotard 
Acked-by: Thierry Reding 
Acked-by: Heiko Stuebner 
Tested-by: Mika Westerberg 
Acked-by: Mika Westerberg 
Acked-by: Lee Jones 
Acked-by: Sören Brinkmann 
Acked-by: Laurent Pinchart 
Acked-by: Ray Jui 
Acked-by: Antoine Tenart 
Acked-by: Hongzhou Yang 
Acked-by: Wei Chen 
Signed-off-by: Linus Walleij

pinctrl: berlin: comment the spi functions

2015-06-10T07:17:43+00:00

Add comments for the SPI functions, to distinguish CLK, SDI, SDO and
C{0,1,2,3}n.

Signed-off-by: Antoine Tenart 
Signed-off-by: Linus Walleij

pinctrl: berlin: fix spi1 SS0n function name

2015-06-10T07:15:27+00:00

Rename function ss0 to spi1 to be consistent with the other Berlin
function names.

Signed-off-by: Antoine Tenart 
Signed-off-by: Linus Walleij

pinctrl: berlin: drop SoC stub provided regmap

2015-05-18T16:10:08+00:00

With convertsion to simple-mfd sub-nodes, drop the regmap registration
by SoC stubs.

Signed-off-by: Antoine Tenart 
Acked-by: Linus Walleij 
Signed-off-by: Sebastian Hesselbarth

pinctrl: berlin: prepare to use regmap provided by syscon

2015-05-18T15:52:46+00:00

The Berlin pin controller nodes will be simple-mfd probed sub-nodes of
soc-controller and system-controller nodes. The register bank is managed
by syscon, which provides a regmap.

Prepare to get the regmap from syscon parent node instead of SoC stub
provided regmap.

Signed-off-by: Antoine Tenart 
Acked-by: Linus Walleij 
Signed-off-by: Sebastian Hesselbarth

pinctrl: berlin: drop owner assignment from platform_drivers

2014-10-20T14:21:21+00:00

A platform_driver does not need to set an owner, it will be populated by the
driver core.

Signed-off-by: Wolfram Sang

pinctrl: berlin: fix the dt_free_map function

2014-09-23T15:01:47+00:00

The berlin_pinctrl_dt_free_map function tries to free memory
allocated and handled by the of subsystem. This is wrong and
already handled by pinctrl_dt_free_maps() which calls
of_node_put().

This patch fixes the Berlin pinctrl way of freeing its maps,
avoiding a kernel BUG(), by using the common
pinctrl_utils_dt_free_map function instead.

Signed-off-by: Antoine Tenart 
Acked-by: Sebastian Hesselbarth 
Signed-off-by: Linus Walleij

pinctrl: clean up after enable refactoring

2014-09-04T08:05:07+00:00

commit 2243a87d90b42eb38bc281957df3e57c712b5e56
"pinctrl: avoid duplicated calling enable_pinmux_setting for a pin"
removed the .disable callback from the struct pinmux_ops,
making the .enable() callback the only remaining callback.

However .enable() is a bad name as it seems to imply that a
muxing can also be disabled. Rename the callback to .set_mux()
and also take this opportunity to clean out any remaining
mentions of .disable() from the documentation.

Acked-by: Stephen Warren 
Acked-by: Bjorn Andersson 
Acked-by: Fan Wu 
Signed-off-by: Linus Walleij

pinctrl: berlin: fix an error code in berlin_pinctrl_probe()

2014-07-04T23:15:35+00:00

We are returning success here because PTR_ERR(NULL) is zero.  We should
be returning -ENODEV.

Fixes: 3de68d331c24 ('pinctrl: berlin: add the core pinctrl driver for Marvell Berlin SoCs')
Signed-off-by: Dan Carpenter 
Acked-by: Sebastian Hesselbarth 
Signed-off-by: Linus Walleij