linux-kernel - [PATCH v2 0/4] Add support for the Renesas RZ/N1 ADC

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20251029144644.667561-1-herve.codina@bootlin.com>
Date: Wed, 29 Oct 2025 15:46:40 +0100
From: "Herve Codina (Schneider Electric)" <herve.codina@...tlin.com>
To: Wolfram Sang <wsa+renesas@...g-engineering.com>,
	Herve Codina <herve.codina@...tlin.com>,
	Jonathan Cameron <jic23@...nel.org>,
	David Lechner <dlechner@...libre.com>,
	Nuno Sá <nuno.sa@...log.com>,
	Andy Shevchenko <andy@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Magnus Damm <magnus.damm@...il.com>,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>
Cc: linux-iio@...r.kernel.org,
	linux-renesas-soc@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Pascal Eberhard <pascal.eberhard@...com>,
	Miquel Raynal <miquel.raynal@...tlin.com>,
	Thomas Petazzoni <thomas.petazzoni@...tlin.com>
Subject: [PATCH v2 0/4] Add support for the Renesas RZ/N1 ADC

Hi,

The Renesas RZ/N1 ADC controller is the ADC controller available in the
Renesas RZ/N1 SoCs family.

It can use up to two internal ADC cores (ADC1 and ADC2) those internal
cores are handled through ADC controller virtual channels.

Best regards,
Herve Codina

Changes v1 -> v2:

v1: https://lore.kernel.org/lkml/20251015142816.1274605-1-herve.codina@bootlin.com/

  Rebase on top of v6.18-rc3 to have commit db82b8dbf5f0 ("PM: runtime:
  Fix conditional guard definitions")

  Patch 1:
    - Remove unneeded 'dependencies' part.
    - Rename "adc-clk" clock to "adc".
    - Move 'additionalProperties: false' just before the example.
    - Use const instead of enum for the "renesas,r9a06g032-adc"
      compatible string.
    - Fix the ACD typo.

  Patch 2:
    - Fix the ACD typo.
    - Rename "adc-clk" clock to "adc".
    - Update included headers and sort them.
    - Align register definitions at the same column.
    - Inline the FIELD_GET() instead of having macros.
    - Introduce RZN1_ADC_NO_CHANNEL
    - Get Vref voltage value at probe().
    - Remove the bitmap in rzn1_adc_set_iio_dev_channels().
    - Use dev_err_probe() in rzn1_adc_set_iio_dev_channels().
    - Use auto-cleanup variant for PM runtime "resume and get".
    - Use scoped_guard() for mutex.
    - Use devm_mutex_init().
    - Use the fixed "rzn1-adc" string for indio_dev->name.
    - Use DEFINE_RUNTIME_DEV_PM_OPS().
    - Fix rzn1_adc_of_match table and remove of_match_ptr().
    - Add a comment related to decoupling between IIO chans and ADC1 or
      ADC2 core chans
    - Update and add several comments related to ADC core usage and the
      relationship with ADC core regulator presence.
    - Remove clocks and regulators handling from PM runtime
      suspend()/remove().
    - Simplify the driver removing the no more relevant struct
      rzn1_adc_core.

  Patch 3:
    - Rename "adc-clk" clock to "adc".
    - Add 'Reviewed-by: Wolfram Sang'

  Patch 4
    - Removed the linux-iio list

Herve Codina (Schneider Electric) (4):
  dt-bindings: iio: adc: Add the Renesas RZ/N1 ADC
  iio: adc: Add support for the Renesas RZ/N1 ADC
  ARM: dts: renesas: r9a06g032: Add the ADC device
  MAINTAINERS: Add the Renesas RZ/N1 ADC driver entry

 .../bindings/iio/adc/renesas,rzn1-adc.yaml    | 111 ++++
 MAINTAINERS                                   |   7 +
 arch/arm/boot/dts/renesas/r9a06g032.dtsi      |  10 +
 drivers/iio/adc/Kconfig                       |  10 +
 drivers/iio/adc/Makefile                      |   1 +
 drivers/iio/adc/rzn1-adc.c                    | 493 ++++++++++++++++++
 6 files changed, 632 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iio/adc/renesas,rzn1-adc.yaml
 create mode 100644 drivers/iio/adc/rzn1-adc.c

-- 
2.51.0