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From: Jeremy Kerr <jk@codeconstruct.com.au>
To: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	Lee Jones <lee@kernel.org>, Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Arnd Bergmann <arnd@arndb.de>,
	Philipp Zabel <p.zabel@pengutronix.de>
Cc: Mark Brown <broonie@kernel.org>
Subject: [PATCH v4 0/2] Add reset control for mfd syscon devices
Date: Thu,  5 Jan 2023 08:50:08 +0800	[thread overview]
Message-ID: <20230105005010.124948-1-jk@codeconstruct.com.au> (raw)

This RFC series adds a facility for syscon devices to control a reset
line when probed; we have instances of simple register-only syscon
resources that need deassertion of a reset line for the register set to
be accessible.

Rather than requiring a specific driver to implement this, it'd be nice
to use the generic syscon device and the generic resets linkage to do
so.

Any comments/queries/etc are most welcome.

Cheers,


Jeremy

---
v2:
 - use direct syscon registration interface, rather than the (unused)
   syscon platform device code
 - consequently, add regmap infrastructure to attach a reset
   controller, in a similar way to attaching clocks
v3:
 - drop regmap reset control and just do a direct deassert from the syscon
   driver
v4:
 - collapse unnecessary else block in syscon driver reset control

---
Jeremy Kerr (2):
  dt-bindings: mfd/syscon: Add resets property
  mfd: syscon: allow reset control for syscon devices

 .../devicetree/bindings/mfd/syscon.yaml       |  3 +++
 drivers/mfd/syscon.c                          | 27 ++++++++++++++-----
 2 files changed, 24 insertions(+), 6 deletions(-)

-- 
2.38.1


             reply	other threads:[~2023-01-05  0:55 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-05  0:50 Jeremy Kerr [this message]
2023-01-05  0:50 ` [PATCH v4 1/2] dt-bindings: mfd/syscon: Add resets property Jeremy Kerr
2023-01-19 16:29   ` Lee Jones
2023-01-05  0:50 ` [PATCH v4 2/2] mfd: syscon: allow reset control for syscon devices Jeremy Kerr
2023-01-19 16:30   ` Lee Jones
2023-09-12 21:13   ` Daniel Golle

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