linux.git/Documentation/devicetree/bindings/rtc, branch v5.10

Merge tag 'rtc-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

2020-10-21T18:22:08+00:00

Pull RTC updates from Alexandre Belloni:
 "A new driver this cycle is making the bulk of the changes and the
  rx8010 driver has been rework to use the modern APIs.

  Summary:

  Subsystem:
   - new generic DT properties: aux-voltage-chargeable,
     trickle-voltage-millivolt

  New driver:
   - Microcrystal RV-3032

  Drivers:
   - ds1307: use aux-voltage-chargeable
   - r9701, rx8010: modernization of the driver
   - rv3028: fix clock output, trickle resistor values, RAM
     configuration registers"

* tag 'rtc-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (50 commits)
  rtc: r9701: set range
  rtc: r9701: convert to devm_rtc_allocate_device
  rtc: r9701: stop setting RWKCNT
  rtc: r9701: remove useless memset
  rtc: r9701: stop setting a default time
  rtc: r9701: remove leftover comment
  rtc: rv3032: Add a driver for Microcrystal RV-3032
  dt-bindings: rtc: rv3032: add RV-3032 bindings
  dt-bindings: rtc: add trickle-voltage-millivolt
  rtc: rv3028: ensure ram configuration registers are saved
  rtc: rv3028: factorize EERD bit handling
  rtc: rv3028: fix trickle resistor values
  rtc: rv3028: fix clock output support
  rtc: mt6397: Remove unused member dev
  rtc: rv8803: simplify the return expression of rv8803_nvram_write
  rtc: meson: simplify the return expression of meson_vrtc_probe
  rtc: rx8010: rename rx8010_init_client() to rx8010_init()
  rtc: ds1307: enable rx8130's backup battery, make it chargeable optionally
  rtc: ds1307: consider aux-voltage-chargeable
  rtc: ds1307: store previous charge default per chip
  ...

dt-bindings: rtc: rv3032: add RV-3032 bindings

2020-10-19T20:47:56+00:00

Document the Microcrystal RV-3032 device tree bindings

Signed-off-by: Alexandre Belloni 
Reviewed-by: Rob Herring 
Link: https://lore.kernel.org/r/20201013144110.1942218-2-alexandre.belloni@bootlin.com

dt-bindings: rtc: add trickle-voltage-millivolt

2020-10-19T20:47:56+00:00

Some RTCs have a trickle charge that is able to output different voltages
depending on the type of the connected auxiliary power (battery, supercap,
...). Add a property allowing to specify the necessary voltage.

Signed-off-by: Alexandre Belloni 
Reviewed-by: Rob Herring 
Link: https://lore.kernel.org/r/20201013144110.1942218-1-alexandre.belloni@bootlin.com

dt-bindings: Explicitly allow additional properties in common schemas

2020-10-07T16:30:06+00:00

In order to add meta-schema checks for additional/unevaluatedProperties
being present, all schema need to make this explicit. As common/shared
schema are included by other schemas, they should always allow for
additionalProperties.

Acked-by: Mark Brown 
Acked-by: Krzysztof Kozlowski 
Acked-by: Sebastian Reichel 
Acked-by: Chanwoo Choi 
Acked-By: Vinod Koul 
Acked-by: Lee Jones 
Acked-by: Geert Uytterhoeven 
Acked-by: Srinivas Kandagatla 
Acked-by: Ulf Hansson 
Acked-by: Jonathan Cameron 
Acked-by: Guenter Roeck 
Link: https://lore.kernel.org/r/20201005183830.486085-5-robh@kernel.org
Signed-off-by: Rob Herring

dt-bindings: Add missing 'unevaluatedProperties'

2020-10-07T16:26:41+00:00

This doesn't yet do anything in the tools, but make it explicit so we can
check either 'unevaluatedProperties' or 'additionalProperties' is present
in schemas.

'unevaluatedProperties' is appropriate when including another schema (via
'$ref') and all possible properties and/or child nodes are not
explicitly listed in the schema with the '$ref'.

This is in preparation to add a meta-schema to check for missing
'unevaluatedProperties' or 'additionalProperties'. This has been a
constant source of review issues.

Acked-by: Mark Brown 
Acked-by: Wolfram Sang 
Acked-by: Krzysztof Kozlowski 
Acked-By: Vinod Koul 
Acked-by: Geert Uytterhoeven 
Acked-by: Ulf Hansson 
Acked-by: Guenter Roeck 
Acked-by: Mathieu Poirier 
Acked-by: Dmitry Torokhov 
Link: https://lore.kernel.org/r/20201005183830.486085-2-robh@kernel.org
Signed-off-by: Rob Herring

dt-bindings: rtc: ds1307: add rx8130 aux-voltage-chargeable support

2020-09-24T07:56:03+00:00

Epson's RX8130 was not charged before. A related patch will allow
optional charging.

Signed-off-by: Bastian Krause 
Signed-off-by: Alexandre Belloni 
Reviewed-by: Rob Herring 
Link: https://lore.kernel.org/r/20200917183246.19446-4-bst@pengutronix.de

dt-bindings: rtc: ds1307: let aux-voltage-chargeable supersede trickle-diode-disable

2020-09-24T07:56:03+00:00

trickle-diode-disable is deprecated, so reflect that in the driver's
binding and add the new aux-voltage-chargeable.

Signed-off-by: Bastian Krause 
Signed-off-by: Alexandre Belloni 
Reviewed-by: Rob Herring 
Link: https://lore.kernel.org/r/20200917183246.19446-3-bst@pengutronix.de

dt-bindings: rtc: let aux-voltage-chargeable supersede trickle-diode-disable

2020-09-24T07:56:03+00:00

Some RTCs can be equipped with a chargeable battery or supercap.
Every RTC allowing this whose driver's implement it are charged by
default. To disable this the trickle-diode-disable flag exists.

If a driver did not support charging and some time later one wants to
add that feature, there is currently no way to do it without breaking
dt backwards compatibility. RTCs on boards without the
trickle-diode-disable flag in their device tree would suddenly charge
their battery/supercap which is a change in behavior.

Change that by introducing aux-voltage-chargeable, not as a flag but as
a uint32 enum allowing to set "do not charge" (0) or "charge" (1). This
dt property is optional, so we can now distinguish these cases.

Care must be taken to support the old behavior for device trees without
aux-voltage-chargeable nonetheless to stay compatible.

Signed-off-by: Bastian Krause 
Signed-off-by: Alexandre Belloni 
Reviewed-by: Rob Herring 
Link: https://lore.kernel.org/r/20200917183246.19446-2-bst@pengutronix.de

Merge tag 'devicetree-fixes-for-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

2020-08-15T15:19:58+00:00

Pull devicetree fixes from Rob Herring:
 "Another round of 'allOf' removals and whitespace clean-ups of schemas"

* tag 'devicetree-fixes-for-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  dt-bindings: Remove more cases of 'allOf' containing a '$ref'
  dt-bindings: Whitespace clean-ups in schema files

dt-bindings: Whitespace clean-ups in schema files

2020-08-14T14:55:58+00:00

Clean-up incorrect indentation, extra spaces, long lines, and missing
EOF newline in schema files. Most of the clean-ups are for list
indentation which should always be 2 spaces more than the preceding
keyword.

Found with yamllint (which I plan to integrate into the checks).

Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-clk@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: linux-spi@vger.kernel.org
Cc: linux-gpio@vger.kernel.org
Cc: linux-remoteproc@vger.kernel.org
Cc: linux-hwmon@vger.kernel.org
Cc: linux-i2c@vger.kernel.org
Cc: linux-fbdev@vger.kernel.org
Cc: linux-iio@vger.kernel.org
Cc: linux-input@vger.kernel.org
Cc: linux-pm@vger.kernel.org
Cc: linux-media@vger.kernel.org
Cc: alsa-devel@alsa-project.org
Cc: linux-mmc@vger.kernel.org
Cc: linux-mtd@lists.infradead.org
Cc: netdev@vger.kernel.org
Cc: linux-rtc@vger.kernel.org
Cc: linux-serial@vger.kernel.org
Cc: linux-usb@vger.kernel.org
Acked-by: Sam Ravnborg 
Signed-off-by: Rob Herring