linux.git/drivers/acpi/pmic, branch v4.12

ACPI / PMIC: xpower: Fix power_table addresses

2017-04-28T21:32:44+00:00

The power table addresses should be contiguous, but there was a hole
where 0x34 was missing. On most devices this is not a problem as
addresses above 0x34 are used for the BUC# convertors which are not
used in the DSDTs I've access to but after the BUC# convertors
there is a field named GPI1 in the DSTDs, which does get used in some
cases and ended up turning BUC6 on and off due to the wrong addresses,
resulting in turning the entire device off (or causing it to reboot).

Removing the hole in the addresses fixes this, fixing one of my
Bay Trail tablets turning off while booting the mainline kernel.

While at it add comments with the field names used in the DSDTs to
make it easier to compare the register and bits used at each address
with the datasheet.

Signed-off-by: Hans de Goede 
Reviewed-by: Andy Shevchenko 
Signed-off-by: Rafael J. Wysocki

ACPI / PMIC: Stop xpower OPRegion handler relying on IIO

2017-04-20T10:43:43+00:00

The intel_pmic_xpower code provides an OPRegion handler, which must be
available before other drivers using it are loaded, which can only be
ensured if both the mfd and opregion drivers are built in, which is why
the Kconfig option for intel_pmic_xpower is a bool.

The use of IIO is causing trouble for generic distro configs here as
distros will typically want to build IIO drivers as modules and there
really is no reason to use IIO here. The reading of the ADC value is a
single regmap_bulk_read, which is already protected against races by
the regmap-lock.

This commit removes the use of IIO, allowing distros to enable the
driver without needing to built IIO in and also actually simplifies
the code.

Signed-off-by: Hans de Goede 
Signed-off-by: Rafael J. Wysocki

ACPI / PMIC: Add opregion driver for Intel CHT Whiskey Cove PMIC

2017-04-20T10:43:41+00:00

Add opregion driver for Intel CHT Whiskey Cove PMIC, based on various
non upstreamed CHT Whiskey Cove PMIC patches. This does not include
support for the Thermal opregion (DPTF) due to lacking documentation.

Signed-off-by: Hans de Goede 
Reviewed-by: Andy Shevchenko 
Signed-off-by: Rafael J. Wysocki

ACPI / PMIC: remove modular references from non-modular code

2016-07-16T01:03:14+00:00

The Kconfig currently controlling compilation of these files are:

drivers/acpi/Kconfig:menuconfig PMIC_OPREGION
drivers/acpi/Kconfig:   bool "PMIC (Power Management Integrated Circuit) operation region support"

drivers/acpi/Kconfig:config BXT_WC_PMIC_OPREGION
drivers/acpi/Kconfig:   bool "ACPI operation region support for BXT WhiskeyCove PMIC"

drivers/acpi/Kconfig:config XPOWER_PMIC_OPREGION
drivers/acpi/Kconfig:   bool "ACPI operation region support for XPower AXP288 PMIC"

...meaning they currently are not being built as a module by anyone.

Lets remove the couple traces of modular infrastructure use, so that
when reading the code there is no doubt it is builtin-only.

We delete the MODULE_LICENSE tag etc. since all that information
is already contained at the top of the file in the comments.

One file was using module_init.  Since module_init translates to
device_initcall in the non-modular case, the init ordering remains
unchanged with this commit.

In one case we replace the module.h with export.h since that file
is exporting some symbols, but does not use __init.  The other two
are using __init and so module.h gets replaced with init.h there.

Signed-off-by: Paul Gortmaker 
Signed-off-by: Rafael J. Wysocki

ACPI / PMIC: intel: initialize result to 0

2016-06-27T13:24:09+00:00

Fixes compiler warning.

Signed-off-by: Felipe Balbi 
Signed-off-by: Heikki Krogerus 
Signed-off-by: Rafael J. Wysocki

ACPI / PMIC: intel: add REGS operation region support

2016-06-27T13:24:05+00:00

At least some of the Broxtons have a third custom OpRegion
named REGS. This adds handling for it.

Signed-off-by: Felipe Balbi 
Signed-off-by: Heikki Krogerus 
Signed-off-by: Rafael J. Wysocki

ACPI / PMIC: Add opregion driver for Intel BXT WhiskeyCove PMIC

2016-06-24T13:25:38+00:00

This patch adds operation region driver for Intel BXT WhiskeyCove
PMIC. The register mapping is done as per the BXT WC data sheet.

Signed-off-by: Ajay Thomas 
Signed-off-by: Bin Gao 
Reviewed-by: Aaron Lu 
Signed-off-by: Rafael J. Wysocki

ACPI / PMIC: modify the pen function signature to take bit field

2016-06-24T13:25:37+00:00

Issue description: On some pmics, the policy enable for thermal alerts
refers to different bit fields of the same registers, whereas on other
pmics, the policy enable refers to the same bit field on different
registers. Previous implementation did not provide the flexibility for
supporting the first approach.

Solution: Modified the policy enable function to take bit field as well.
The use of bit field is left to the pmic specific opregion driver.

Signed-off-by: Yegnesh Iyer 
Signed-off-by: Bin Gao 
Reviewed-by: Aaron Lu 
Signed-off-by: Rafael J. Wysocki

drivers/acpi: make pmic/intel_pmic_crc.c explicitly non-modular

2016-03-09T22:46:07+00:00

The Kconfig currently controlling compilation of this code is:

drivers/acpi/Kconfig:config CRC_PMIC_OPREGION
drivers/acpi/Kconfig:   bool "ACPI operation region support for CrystalCove PMIC"

...meaning that it currently is not being built as a module by anyone.

Lets remove the couple modular references, so that when reading
the driver there is no doubt it is builtin-only.

Since module_init translates to device_initcall in the non-modular
case, the init ordering remains unchanged with this commit.

We also delete the MODULE_LICENSE tag etc. since all that information
is already contained at the top of the file in the comments.

Signed-off-by: Paul Gortmaker 
Acked-by: Aaron Lu 
Signed-off-by: Rafael J. Wysocki

ACPI/PMIC: Fix typo in MODULE_DESCRIPTION in intel_pmic_crc.c

2015-03-26T20:34:51+00:00

This patch fix a spelling typo in MODULE_DESCRIPTION within intel_pmic_crc.c

Signed-off-by: Masanari Iida 
Signed-off-by: Rafael J. Wysocki