linux-kernel - [PATCH v2 0/3] Add SARADC support on Sophgo SoC

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Message-Id: <20240705-sg2002-adc-v2-0-83428c20a9b2@bootlin.com>
Date: Fri, 05 Jul 2024 15:42:22 +0200
From: Thomas Bonnefille <thomas.bonnefille@...tlin.com>
To: Jonathan Cameron <jic23@...nel.org>, 
 Lars-Peter Clausen <lars@...afoo.de>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Chen Wang <unicorn_wang@...look.com>, 
 Inochi Amaoto <inochiama@...look.com>, 
 Paul Walmsley <paul.walmsley@...ive.com>, 
 Palmer Dabbelt <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>
Cc: Thomas Petazzoni <thomas.petazzoni@...tlin.com>, 
 Miquèl Raynal <miquel.raynal@...tlin.com>, 
 linux-iio@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org, 
 Thomas Bonnefille <thomas.bonnefille@...tlin.com>
Subject: [PATCH v2 0/3] Add SARADC support on Sophgo SoC

This patchset adds initial ADC support for Sophgo SoC. This driver can
work with or without interrupt and in "Active" and "No-Die" domains
depending on if a clock is provided.

Link: https://github.com/sophgo/sophgo-doc/releases/download/sg2002-trm-v1.0/sg2002_trm_en.pdf

Signed-off-by: Thomas Bonnefille <thomas.bonnefille@...tlin.com>
---
Changes in v2:
- Drop modifications in MAINTAINERS file
- Rename the ADC from "sophgo-adc" to "sophgo-cv18xx-adc" to avoid
  conflict with ADCs available in future Sophgo SoCs.
- Reorder nodes in DT to match DTS coding style
- Switch from including <linux/of.h> to <linux/mod_devicetable.h>
- Use scoped_guard instead of mutex_lock/unlock
- Check IRQ Status in the handler
- Change IIO device name
- Use devm_clk_get_optional_enabled instead of a clock variable
- Init completion before the IRQ request
- Removed unnecessary iio_info structure in the private data of the
  driver
- Use SoC specific compatible in the bindings and device trees
- Link to v1: https://lore.kernel.org/r/20240702-sg2002-adc-v1-0-ac66e076a756@bootlin.com

---
Thomas Bonnefille (3):
      dt-bindings: iio: adc: sophgo,cv18xx-saradc.yaml: Add Sophgo SARADC binding documentation
      iio: adc: sophgo-saradc: Add driver for Sophgo SARADC
      riscv: dts: sophgo: Add SARADC configuration

 .../bindings/iio/adc/sophgo,cv18xx-saradc.yaml     |  63 +++++++
 arch/riscv/boot/dts/sophgo/cv1800b.dtsi            |   8 +
 arch/riscv/boot/dts/sophgo/cv18xx.dtsi             |  14 ++
 drivers/iio/adc/Kconfig                            |  10 ++
 drivers/iio/adc/Makefile                           |   1 +
 drivers/iio/adc/sophgo-cv18xx-adc.c                | 195 +++++++++++++++++++++
 6 files changed, 291 insertions(+)
---
base-commit: d20f6b3d747c36889b7ce75ee369182af3decb6b
change-id: 20240527-sg2002-adc-924b862cd3f2

Best regards,
-- 
Thomas Bonnefille <thomas.bonnefille@...tlin.com>