[0/3] Add RZ/G2L MTU3a MFD and pwm driver

Message ID	20221005135518.876913-1-biju.das.jz@bp.renesas.com
Headers	show Return-Path: <linux-pwm-owner@vger.kernel.org> From: Biju Das <biju.das.jz@bp.renesas.com> To: Rob Herring <robh+dt@kernel.org>, Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>, William Breathitt Gray <william.gray@linaro.org>, Thierry Reding <thierry.reding@gmail.com> Cc: Biju Das <biju.das.jz@bp.renesas.com>, Lee Jones <lee@kernel.org>, =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= <u.kleine-koenig@pengutronix.de>, devicetree@vger.kernel.org, linux-pwm@vger.kernel.org, Geert Uytterhoeven <geert+renesas@glider.be>, Chris Paterson <Chris.Paterson2@renesas.com>, Biju Das <biju.das@bp.renesas.com>, Prabhakar Mahadev Lad <prabhakar.mahadev-lad.rj@bp.renesas.com>, linux-renesas-soc@vger.kernel.org Subject: [PATCH 0/3] Add RZ/G2L MTU3a MFD and pwm driver Date: Wed, 5 Oct 2022 14:55:15 +0100 Message-Id: <20221005135518.876913-1-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk
Series	Add RZ/G2L MTU3a MFD and pwm driver \| expand [0/3] Add RZ/G2L MTU3a MFD and pwm driver [1/3] dt-bindings: mfd: Document RZ/G2L MTU3a bindings [3/3] pwm: Add support for RZ/G2L MTU3 PWM

Message ID

20221005135518.876913-1-biju.das.jz@bp.renesas.com

Headers

From: Biju Das <biju.das.jz@bp.renesas.com>
To: Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        William Breathitt Gray <william.gray@linaro.org>,
        Thierry Reding <thierry.reding@gmail.com>
Cc: Biju Das <biju.das.jz@bp.renesas.com>, Lee Jones <lee@kernel.org>,
	=?utf-8?q?Uwe_Kleine-K=C3=B6nig?=  <u.kleine-koenig@pengutronix.de>,
 devicetree@vger.kernel.org, linux-pwm@vger.kernel.org,
 Geert Uytterhoeven <geert+renesas@glider.be>,
 Chris Paterson <Chris.Paterson2@renesas.com>,
 Biju Das <biju.das@bp.renesas.com>,
 Prabhakar Mahadev Lad <prabhakar.mahadev-lad.rj@bp.renesas.com>,
 linux-renesas-soc@vger.kernel.org
Subject: [PATCH 0/3] Add RZ/G2L MTU3a MFD and pwm driver
Date: Wed,  5 Oct 2022 14:55:15 +0100
Message-Id: <20221005135518.876913-1-biju.das.jz@bp.renesas.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

Series

Add RZ/G2L MTU3a MFD and pwm driver | expand

Message

Biju Das Oct. 5, 2022, 1:55 p.m. UTC

The RZ/G2L multi-function timer pulse unit 3 (MTU3a) is embedded in
the Renesas RZ/G2L family SoC's. It consists of eight 16-bit timer
channels and one 32-bit timer channel. It supports the following
functions
 - Counter
 - Timer
 - PWM

This patch series aim to add MFD and pwm driver for MTU3a.

The 8/16/32 bit registers are mixed in each channel. The HW
specifications of the IP is described in patch#1.

Current patch set is tested for PWM mode1 on MTU3 channel.

RFC->v1:
 * replaced devm_reset_control_get->devm_reset_control_get_exclusive
 * Dropped 'bindings' from the binding title
 * Updated the binding example
 * Added additionalProperties: false for counter bindings
 * Squashed all the binding patches
 * Modelled as a single counter device providing both 16-bit
   and 32-bit phase counting modes
 * Modelled as a single pwm device for supporting different pwm modes.
 * Moved counter and pwm bindings to respective subsystems.

Biju Das (3):
  dt-bindings: mfd: Document RZ/G2L MTU3a bindings
  mfd: Add RZ/G2L MTU3 driver
  pwm: Add support for RZ/G2L MTU3 PWM

 .../counter/renesas,rz-mtu3-counter.yaml      |  30 ++
 .../bindings/mfd/renesas,rz-mtu3.yaml         | 290 +++++++++++
 .../bindings/pwm/renesas,rz-mtu3-pwm.yaml     |  50 ++
 drivers/mfd/Kconfig                           |   9 +
 drivers/mfd/Makefile                          |   1 +
 drivers/mfd/rz-mtu3.c                         | 395 +++++++++++++++
 drivers/pwm/Kconfig                           |  11 +
 drivers/pwm/Makefile                          |   1 +
 drivers/pwm/pwm-rz-mtu3.c                     | 462 ++++++++++++++++++
 include/linux/mfd/rz-mtu3.h                   | 160 ++++++
 10 files changed, 1409 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/counter/renesas,rz-mtu3-counter.yaml
 create mode 100644 Documentation/devicetree/bindings/mfd/renesas,rz-mtu3.yaml
 create mode 100644 Documentation/devicetree/bindings/pwm/renesas,rz-mtu3-pwm.yaml
 create mode 100644 drivers/mfd/rz-mtu3.c
 create mode 100644 drivers/pwm/pwm-rz-mtu3.c
 create mode 100644 include/linux/mfd/rz-mtu3.h