linux-stable.git/drivers/extcon/Kconfig, branch linux-5.17.y

extcon: extcon-axp288: Use P-Unit semaphore lock for register accesses

2021-10-27T05:13:38+00:00

use low level P-Unit semaphore lock for axp288 register
accesses directly and for more than one access a time,
to reduce the number of times this semaphore is locked
and released which is an expensive operation.

i2c-bus to the XPower is shared between the kernel and the
SoCs P-Unit. The P-Unit has a semaphore wich the kernel must
lock for axp288 register accesses. When the P-Unit semaphore
is locked CPU and GPU power states cannot change or the system
will freeze.

The P-Unit semaphore lock is already managed inside the regmap
access logic, but for each access the semaphore is locked and
released. So use directly iosf_mbi_(un)block_punit_i2c_access(),
we are safe in doing so because nested calls to the same
semaphore are turned to nops.

Suggested-by: Hans de Goede 
Reviewed-by: Hans de Goede 
Tested-by: Hans de Goede 
Signed-off-by: Fabio Aiuto 
Signed-off-by: Chanwoo Choi

extcon: sm5502: Add support for SM5504

2021-06-21T09:28:01+00:00

SM5504 is another MUIC from Silicon Mitus that is fairly similar
to SM5502. They seem to use the same register set, but:

  - SM5504 has some additional bits in SM5502_REG_CONTROL
  - SM5504 has a quite different set of interrupts
  - SM5504 reports USB OTG as dev_type1 = BIT(0) instead of BIT(7)

Overall it's minor and we can support this by defining a separate
struct sm5502_type for SM5504.

Signed-off-by: Stephan Gerhold 
Signed-off-by: Chanwoo Choi

ASoC/extcon: arizona: Move arizona jack code to sound/soc/codecs/arizona-jack.c

2021-03-18T11:46:15+00:00

The jack handling for arizona codecs is being refactored so that it is
done directly by the codec drivers, instead of having an extcon-driver
bind to a separate "arizona-extcon" child-device for this.

drivers/mfd/arizona-core.c has already been updated to no longer
instantiate an "arizona-extcon" child-device for the arizona codecs.

This means that the "arizona-extcon" driver is no longer useful
(there are no longer any devices for it to bind to).

This commit drops the extcon Kconfig / Makefile bits and moves
drivers/extcon/extcon-arizona.c to sound/soc/codecs/arizona-jack.c .

This is a preparation patch for converting the arizona extcon-driver into
a helper library for letting the arizona codec-drivers directly report jack
state through the standard sound/soc/soc-jack.c functions.

Signed-off-by: Hans de Goede 
Acked-by: Charles Keepax 
Tested-by: Charles Keepax 
Acked-by: Chanwoo Choi 
Signed-off-by: Lee Jones

extcon: Add driver for TI TUSB320

2020-12-11T08:01:09+00:00

This patch adds an extcon driver for the TI TUSB320 USB Type-C device.
This can be used to detect whether the port is configured as a
downstream or upstream facing port.

Signed-off-by: Michael Auchter 
Signed-off-by: Chanwoo Choi

mfd / platform: cros_ec: Move cros-ec core driver out from MFD

2019-09-02T10:33:12+00:00

Now, the ChromeOS EC core driver has nothing related to an MFD device, so
move that driver from the MFD subsystem to the platform/chrome subsystem.

Signed-off-by: Enric Balletbo i Serra 
Acked-by: Andy Shevchenko 
Acked-by: Thierry Reding 
Acked-by: Mark Brown 
Acked-by: Wolfram Sang 
Acked-by: Neil Armstrong 
Acked-by: Alexandre Belloni 
Acked-by: Jonathan Cameron 
Acked-by: Benjamin Tissoires 
Acked-by: Dmitry Torokhov 
Acked-by: Sebastian Reichel 
Acked-by: Chanwoo Choi 
Reviewed-by: Gwendal Grignou 
Tested-by: Gwendal Grignou 
Signed-off-by: Lee Jones

extcon: fsa9480: Fix Kconfig warning and build errors

2019-06-26T08:27:39+00:00

Fix Kconfig dependency warning and subsequent build errors caused by
the Kconfig entry for EXTCON-FSA9480.  It should not select
REGMAP_I2C unless I2C is already set/enabled.

WARNING: unmet direct dependencies detected for REGMAP_I2C
  Depends on [n]: I2C [=n]
  Selected by [y]:
  - EXTCON_FSA9480 [=y] && EXTCON [=y] && INPUT [=y]

Signed-off-by: Randy Dunlap 
[cw00.choi: adjust the patch title and remove the long warning messages]
Signed-off-by: Chanwoo Choi

extcon: Add fsa9480 extcon driver

2019-06-22T12:34:51+00:00

This patch adds extcon driver for Fairchild Semiconductor FSA9480
microUSB switch.

Signed-off-by: Tomasz Figa 
Signed-off-by: Jonathan Bakker 
Signed-off-by: Paweł Chmiel 
Signed-off-by: Chanwoo Choi

treewide: Add SPDX license identifier - Makefile/Kconfig

2019-05-21T08:50:46+00:00

Add SPDX license identifiers to all Make/Kconfig files which:

 - Have no license information of any form

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

  GPL-2.0-only

Signed-off-by: Thomas Gleixner 
Signed-off-by: Greg Kroah-Hartman

extcon: axp288: Add a depends on ACPI to the Kconfig entry

2019-04-11T23:23:24+00:00

As Hans de Goede pointed, using this driver without ACPI
makes little sense, so add ACPI dependency to Kconfig entry
to fix a build error while CONFIG_ACPI is not set.

drivers/extcon/extcon-axp288.c: In function 'axp288_extcon_probe':
drivers/extcon/extcon-axp288.c:363:20: error: dereferencing pointer to incomplete type
    put_device(&adev->dev);

Fixes: 0cf064db948a ("extcon: axp288: Convert to use acpi_dev_get_first_match_dev()")
Reported-by: Hulk Robot 
Suggested-by: Hans de Goede 
Signed-off-by: YueHaibing 
Reviewed-by: Hans de Goede 
Reviewed-by: Mukesh Ojha 
Signed-off-by: Chanwoo Choi

extcon: mrfld: Introduce extcon driver for Basin Cove PMIC

2019-04-05T01:21:41+00:00

On Intel Merrifield the Basin Cove PMIC provides a feature to detect
the USB connection type. This driver utilizes the feature in order
to support the USB dual role detection.

Signed-off-by: Andy Shevchenko 
Signed-off-by: Chanwoo Choi