Commit Graph

57624 Commits

Author SHA1 Message Date
Jonathan Cameron
7b9dc60ebd staging:iio:documentation: Drop most generic docs
These docs are both suffering from being out of date, and from being
superceeded by the documentation in Documentation/driver-api/iio

Note the inkern.txt drop is left for now as this is an area not
well covered by the more recent documentation outside staging.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20200905174721.216452-5-jic23@kernel.org
2020-09-16 19:12:00 +01:00
Jonathan Cameron
d4ca7f94ce staging:iio:light: drop stale ABI docs
There are no remaining light drivers in staging/iio.
The content of this file are either included in the non staging
ABI docs, or don't seem to be used in any current driver.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20200905174721.216452-4-jic23@kernel.org
2020-09-16 19:12:00 +01:00
Jonathan Cameron
5999439859 staging:iio:light: Move tsl2x7x ABI docs to correct location.
These seem to be up to date but never moved out of staging when the driver
did. Hence let us move them out now.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Brian Masney <masneyb@onstation.org>
Cc: Brian Masney <masneyb@onstation.org>
Link: https://lore.kernel.org/r/20200905174721.216452-3-jic23@kernel.org
2020-09-16 19:11:59 +01:00
Jonathan Cameron
a2de31bda7 staging:iio:dac:max517 remove documentation
Whilst there is some useful info in here, it can be easily
obtained from datasheets. Some of the info should perhaps
be incorporated into a device tree bindings doc.
As this didn't move out of staging with the driver, I'm suggesting
we just drop it.  We don't generally carry per driver documentation
with the exception of non standard ABI which is not the case here.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Roland Stigge <stigge@antcom.de>
Link: https://lore.kernel.org/r/20200905174721.216452-2-jic23@kernel.org
2020-09-16 19:11:59 +01:00
Nuno Sá
9da3286673 staging: iio: adis16240: Use Managed device functions
Use the adis managed device functions to setup the buffer and the trigger.
The ultimate goal will be to completely drop the non devm version from
the lib.

Since we are here, drop the `.remove` callback by further using devm
functions.

Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20200915120258.161587-10-nuno.sa@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-09-16 19:06:10 +01:00
Nuno Sá
460c7b4c1a staging: iio: adis16203: Use Managed device functions
Use the adis managed device functions to setup the buffer and the trigger.
The ultimate goal will be to completely drop the non devm version from
the lib.

Since we are here, drop the `.remove` callback by further using devm
functions.

Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20200915120258.161587-9-nuno.sa@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-09-16 19:06:10 +01:00
Calvin Glisson
f70fd25a59 staging: iio: ad9834: Remove excess blank line
Remove excess blank line after variable declarations.
Improves code consistency and readability.
Change suggested by checkpatch.pl:

CHECK: Please don't use multiple blank lines

Signed-off-by: Calvin Glisson <taragaram@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-08-22 10:53:24 +01:00
Ankit Baluni
96f962511b Staging: iio: Fixed a punctuation and a spelling mistake.
Added a missing comma and changed 'it it useful' to 'it is useful'.

Signed-off-by: Ankit Baluni <b18007@students.iitmandi.ac.in>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-08-22 10:53:19 +01:00
Mauro Carvalho Chehab
bc752d2f34 staging: hikey9xx: Kconfig: add regulator dependency
The regulator driver needs it, as otherwise it will produce
errors when creating vmlinux.

Reported-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/a287238bd0141aa68aae7d4cec4c1174a43b3e53.1597766680.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 19:15:47 +02:00
Alex Dewar
fbcfdfab4a staging: emxx_udc: Allow for building on !ARM
Currently the module can only be test built on ARM, although it seems to
build fine on x86. Change this to allow for broader test coverage.

Signed-off-by: Alex Dewar <alex.dewar90@gmail.com>
Link: https://lore.kernel.org/r/20200818151133.583382-1-alex.dewar90@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 17:21:40 +02:00
Mauro Carvalho Chehab
9e59172885 dt: document HiSilicon SPMI controller and mfd/regulator properties
Add documentation for the properties needed by the HiSilicon
6421v600 driver, and by the SPMI controller used to access
the chipset.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/56c40a260bf31edf7049f50586c63ee0d06e02cb.1597762400.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 17:05:14 +02:00
Mauro Carvalho Chehab
9f46c3433f staging: mfd: hi6421-spmi-pmic: Simplify the compatible string
It is clear that this driver is for PMIC. So, get rid of
it at the compatible.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/12bdc9b4734e156098408d0d27256abdc91ac283.1597762400.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 17:05:14 +02:00
Mauro Carvalho Chehab
de1a93b6a4 staging: spmi: hisi-spmi-controller: change compatible string
Add the chipset name at the compatible string, as other
HiSilicon chipsets with SPMI bus might require something
different.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/f34062e82b5d5ee49aab4f9055b44e42e5023f0a.1597762400.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 17:05:14 +02:00
Mauro Carvalho Chehab
b240d0143b staging: mfd: hi6421-spmi-pmic: get rid of interrupt properties
Both irqnum and irqarray properties reflect the same thing:
the number of bits and bytes for interrupts at this
chipset. E. g.:

	irqnum = 8 x irqarray

This can be seen by the way pending interrupts are handled:

	/* During probe time */
	pmic->irqs = devm_kzalloc(dev, pmic->irqnum * sizeof(int), GFP_KERNEL);

	/* While handling IRQs */
	for (i = 0; i < pmic->irqarray; i++) {
		pending = hi6421_spmi_pmic_read(pmic, (i + pmic->irq_addr));
		pending &= 0xff;

		for_each_set_bit(offset, &pending, 8)
			generic_handle_irq(pmic->irqs[offset + i * 8]);

	}

Going further, there are some logic at the driver which assumes
that irqarray is 2:

	/* solve powerkey order */
	if ((i == HISI_IRQ_KEY_NUM) &&
	    ((pending & HISI_IRQ_KEY_VALUE) == HISI_IRQ_KEY_VALUE)) {
		generic_handle_irq(pmic->irqs[HISI_IRQ_KEY_DOWN]);
		generic_handle_irq(pmic->irqs[HISI_IRQ_KEY_UP]);
		pending &= (~HISI_IRQ_KEY_VALUE);
	}

As HISI_IRQ_KEY_DOWN and HISI_IRQ_KEY_UP are fixed values
and don't depend on irqnum/irqarray.

The IRQ addr and mask addr seem to be also fixed, based on some
comments at the OF parsing code. So, get rid of them too,
removing the of parsing function completely.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/e231244e42cb5b56240705cac2f987e11a078038.1597762400.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 17:05:14 +02:00
Mauro Carvalho Chehab
78dd424357 staging: hikey9xx: fix Kconfig dependency chain
Both the SPMI controller and the SPMI PMIC driver
depends on the SPMI bus support.

The dependency for the regulator is also wrong:
it should depends on the SPMI version of the HiSilicon 6421,
and not on the normal one.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/1b7e23500e7449593393115cc0954af441b0c730.1597762400.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 17:05:14 +02:00
Mauro Carvalho Chehab
561e174eb3 staging: hikey9xx: add a TODO list
Place the things that are needed to be able to move those
drivers out of staging.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/bf3ebe32125646e0a87a59280392e8c6fda08488.1597647359.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 16:15:27 +02:00
Mauro Carvalho Chehab
2c4fb70d18 staging: regulator: hi6421v600-regulator: code cleanup
Do some code cleanup in order to make it cleaner for moving
it out of staging in the future.

Suggested-by: Jonathan Cameron <Jonathan.Cameron@Huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/32fadb359c1817992af78052e2d9448b8c5fc61f.1597647359.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 16:15:27 +02:00
Mauro Carvalho Chehab
88e059e6c4 staging: regulator: hi6421v600-regulator: add it to the building system
Change the binding logic to ensure that the PMIC SPMI
driver will run before the regulator code and add it to the
building system.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/2992dc49945dcfb07c4bd96fa5c288c4e679701a.1597647359.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 16:15:27 +02:00
Mauro Carvalho Chehab
1275f3c3fc staging: regulator: hi6421v600-regulator: fix some coding style issues
Fix the remaining issues complained by checkpatch.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/af5101fa2ab1d267ac5ac22603f95c6065ac110f.1597647359.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 16:15:27 +02:00
Mauro Carvalho Chehab
6f9bd6e262 staging: regulator: hi6421v600-regulator: cleanup DT settings
Currently, an array is used to store both vsel and enable
settings, mixing registers, masks and bit settings.

Change it in order to have one separate property for each.

This makes easier to understand the contents of the DT
file, and to describe it at the Documentation/.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/fd72215b0a7da55dd727c2d7bd01c047a46cdd2e.1597647359.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 16:15:27 +02:00
Mauro Carvalho Chehab
6105e9ab64 staging: regulator: hi6421v600-regulator: initialize ramp_delay
Without that, the regulator's core complains with:

       ldo17: ramp_delay not set

For now, use the enable time, as we don't have any datasheets from
this device.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/67df5456e4f23c88ab4fd9331eb8202c3952e5c5.1597647359.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 16:15:26 +02:00
Mauro Carvalho Chehab
875a65a05d staging: regulator: hi6421v600-regulator: add a driver-specific debug macro
Using dev_dbg() is not too nice, as, instead of printing the
name of the regulator, it prints "regulator.<number>", making
harder to associate what is happening with each ldo line.

So, add a debug-specific macro, which will print the rdev's
name, just like the regulator core.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/1690b8531b23910aa915bd2725410b926022c481.1597647359.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 16:15:26 +02:00
Mauro Carvalho Chehab
67a345c784 staging: regulator: hi6421v600-regulator: don't use usleep_range for off_on_delay
The regulator's core already handles it.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/4f17adca2b04c401e5de5556700638648ce25c0c.1597647359.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 16:15:26 +02:00
Mauro Carvalho Chehab
6043217695 staging: regulator: hi6421v600-regulator: convert to use get/set voltage_sel
As the supported LDOs on this driver are all using a selector,
change the implementation to use get_voltage_sel and
set_voltage_sel ops.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/1cf4f26540e65ffbb561c7d52e53f6be5bd63ac4.1597647359.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 16:15:26 +02:00
Mauro Carvalho Chehab
c22aeb9412 staging: regulator: hi6421v600-regulator: change namespace
Rename the functions used internally inside the driver in
order for them to follow the driver's name.

While here, get rid of some unused definitions at the
header file.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/5cda96baef9374a096a7a0c8f76f60491b0084c7.1597647359.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 16:15:26 +02:00
Mauro Carvalho Chehab
e086a9cd2b staging: regulator: hi6421v600-regulator: better handle modes
Instead of implementing a custom set of properties, set
valid_modes_mask based on having or not a mask for enabling
the eco_mode.

This makes the code clearer, and remove some uneeded props
from DT.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/0f4ac5a4167bbca428c8507b6992acd8b3ebabd1.1597647359.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 16:15:26 +02:00
Mauro Carvalho Chehab
db27f8294c staging: regulator: hi6421v600-regulator: use shorter names for OF properties
Simplify the names of the OF properties, in order to make
them similar to other drivers and to make easier to understand
what each property means.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/98f66100263940901ba59ec187919e9cf5e64f31.1597647359.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 16:15:26 +02:00
Mauro Carvalho Chehab
9a18329f77 staging: regulator: hi6421v600-regulator: cleanup debug messages
- use dev_foo() instead of pr_foo();
- cleanup the messages, making them more standard and easier
  to understand.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/2d17e168031340da73e1bd1c826289ceba2dbe8f.1597647359.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 16:15:25 +02:00
Mauro Carvalho Chehab
32f53804d2 staging: regulator: hi6421v600-regulator: cleanup struct hisi_regulator
There are several fields on this struct that can be removed,
as they already exists at struct regulator_desc.

Remove them, cleaning up the code in the process.

While here, rename it to hi6421v600_regulator_info, in order
to better match the driver's name.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/648d48f11368a9869d760c2bd54bfbc3feb4f44c.1597647359.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 16:15:25 +02:00
Mauro Carvalho Chehab
75937f8f96 staging: regulator: hi6421v600-regulator: change the binding logic
Change the binding logic to ensure that the PMIC SPMI
driver will run before the regulator code and add it to the
building system.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/aa40d443dfc6c8e69e4c36fa79d15459762924e4.1597647359.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 16:15:25 +02:00
Mauro Carvalho Chehab
b660bf657d staging: regulator: hi6421v600-regulator: coding style fixups
There are several issues on those drivers related to their
coding style. Solve most of them.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/9ea7fdc004c7c44ae513b6c8f6c4a4493dd1ac61.1597647359.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 16:15:25 +02:00
Mauro Carvalho Chehab
12ca3b20db staging: regulator: hi6421v600-regulator: port it to upstream
The driver was originally written for Kernel 4.9. It needs to
be ported to upstream:

	- Got rid of timeval;
	- Removed a bogus dependency;
	- Did cleanups at the header file.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/9e34400d2cc15ef501a8478f69a95c9abc5c4d8d.1597647359.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 16:15:25 +02:00
Mauro Carvalho Chehab
0e0473c838 staging: regulator: hi6421v600-regulator: get rid of unused code
Get rid of the sysfs code and other parts of the driver
which aren't needed upstream.

If needed later, this patch can be (partially?) reversed.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/698b2c7bdc92e336d2559bc65415807499b0e3a8.1597647359.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 16:15:25 +02:00
Mayulong
42f24d9d44 staging: regulator: add a regulator driver for HiSilicon 6421v600 SPMI PMIC
Add the regulator driver for the LDO lines provided by the
HiSilicon 6421v600 SPMI PMIC device.

[mchehab+huawei@kernel.org: keep just the regulator driver on this patch,
 renaming it to better fit at upstream namespace]

The compete patch is at:
	https://github.com/96boards-hikey/linux/commit/08464419fba2

Signed-off-by: Mayulong <mayulong1@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/6e5f6a811edf77575ddaa84ab6542cc646024423.1597647359.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 16:15:25 +02:00
Mauro Carvalho Chehab
6b94669925 staging: mfd: hi6421-spmi-pmic: cleanup the code
There are several small cleanups that can be done in order to
make the code more prepared to be upstreamed.

Suggested-by: Jonathan Cameron <Jonathan.Cameron@Huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/823792ba2f69e613629ab52a33e5728d54e2288b.1597647359.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 16:15:25 +02:00
Mauro Carvalho Chehab
926648d479 staging: mfd: hi6421-spmi-pmic: add it to the building system
Now that the driver is ready, place it at the build system.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/952e11ea1a33beaf67d6dc355d5c0f99ab4fb964.1597647359.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 16:15:24 +02:00
Mauro Carvalho Chehab
4d70881afd staging: mfd: hi6421-spmi-pmic: fix some coding style issues
Checkpatch complains about some minor issues inside this
driver that were not addressed by the previous patch.

Address them.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/84b53d20632c84cc60b8dadfe937f3c54b355cef.1597647359.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 16:15:24 +02:00
Mauro Carvalho Chehab
1eb2784a90 staging: mfd: hi6421-spmi-pmic: change namespace on its functions
Rename the functions used internally inside the driver in
order for them to follow the driver's name.

While here, get rid of some unused definitions at the
header file.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/bfa8bf33f71612b1511d73269ca242d0d4e70940.1597647359.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 16:15:24 +02:00
Mauro Carvalho Chehab
4e15eadc85 staging: mfd: hi6421-spmi-pmic: cleanup OF properties
Simplify the names of the DT properties and do some cleanups,
in order to better document them.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/24ffcd28a17ee7b0940d8aabef556d172d5feddf.1597647359.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 16:15:24 +02:00
Mauro Carvalho Chehab
bd07d62a47 staging: mfd: hi6421-spmi-pmic: get rid of unused OF properties
There are several OF properties that aren't used by Hikey 970,
and some are not even used inside the driver.

So, drop them, as as this makes easier to document what's
actually used.

If latter needed, those could be re-added later.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/332f96c178b81bf1e9908a1da2127f043909ae0c.1597647359.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 16:15:24 +02:00
Mauro Carvalho Chehab
cf0f27b7b2 staging: mfd: hi6421-spmi-pmic: change the binding logic
Change the binding logic to ensure that the MFD driver
will be load after having the SPMI controller registered.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/eb50392ce68bb30f64c603572cdb9c91f93ea47b.1597647359.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 16:15:24 +02:00
Mauro Carvalho Chehab
4b5e9b39e7 staging: mfd: hi6421-spmi-pmic: get rid of the static vars
There are several static vars inside this driver.

Get rid of them.

While here, add a SPDX header file.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/19c497fc2bb1d3a95863d92cac89869d5abe3f2e.1597647359.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 16:15:23 +02:00
Mauro Carvalho Chehab
02a9bd4f3e staging: mfd: hi6421-spmi-pmic: deal with non-static functions
Several functions aren't used outside the mfd driver. So,
either remove or make them static.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/d26323ab7be5b4efb73b1950b4daaa5959277449.1597647359.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 16:15:23 +02:00
Mauro Carvalho Chehab
489b1a36b1 staging: mfd: hi6421-spmi-pmic: get rid of unused code
There are some checks there which could make sense for
downstream builds, but doesn't make much sense for
upstream ones. They came from the official Hikey970 tree
from Linaro, but even there, the commented-out code is not
set via other Kconfig vars.

So, let's just get rid of that. If needed later, this
patch can be (partially?) reversed.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/ecbef801f6c32ba0850ad9e5c534a4304807df3b.1597647359.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 16:15:23 +02:00
Mayulong
4524ac56cd staging: mfd: add a PMIC driver for HiSilicon 6421 SPMI version
Add the PMIC SPMI driver for the HiSilicon 6421v600.

[mchehab+huawei@kernel.org: keep just the MFD driver on this patch,
 and renamed filenames to better match other upstream drivers]

 The compete patch is at:
	https://github.com/96boards-hikey/linux/commit/08464419fba2

Signed-off-by: Mayulong <mayulong1@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/4ffb2694244baa47387e39e2c5d71243242c1fc1.1597647359.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 16:15:23 +02:00
Mauro Carvalho Chehab
7f3ac6c502 staging: spmi: hisi-spmi-controller: do some code cleanups
There are several minor things that can be cleanup in
order to make this driver more prepared for leaving staging.

Suggested-by: Jonathan Cameron <Jonathan.Cameron@Huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/1fa33567e21f95942d901a299d92e434d4a24b8f.1597647359.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 16:15:23 +02:00
Mauro Carvalho Chehab
1747938a37 staging: spmi: hisi-spmi-controller: add it to the building system
Now that the driver was ported to upstream, add it as a
SPMI controller.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/5315331cf048cc72844080e5e8668c0dbac48f1f.1597647359.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 16:15:23 +02:00
Mauro Carvalho Chehab
4d914a8c48 staging: spmi: hisi-spmi-controller: fix the dev_foo() logic
Right now, driver is printing some messages as:

	[   33.833026] (NULL device *): spmi_read_cmd: id:0 addr:0x17, read value: 00

This is because dev_foo() are not using a device with a name
set. Change the logic for it to print it right.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/f647600d6e709f3dc3f92a64f1788f739c924330.1597647359.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 16:15:23 +02:00
Mauro Carvalho Chehab
6af3645019 staging: spmi: hisi-spmi-controller: add debug when values are read/write
It is interesting to be able to check if the driver is doing
the right thing. So, add some debug macros to allow checking it.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/11dc4583c41a9c5e2804114d6a7a87374d2a23b4.1597647359.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 16:15:23 +02:00
Mauro Carvalho Chehab
8788a30c12 staging: spmi: hisi-spmi-controller: use le32 macros where needed
Instead of manually using bswap_32(), just use the
le32 macros.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/927ac4f981649318dba399e46a1aa429c428cfa3.1597647359.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 16:15:22 +02:00