linux-kernel - [PATCH v3 0/8] Add RZ/G3E GPT support

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Message-ID: <20250923144524.191892-1-biju.das.jz@bp.renesas.com>
Date: Tue, 23 Sep 2025 15:45:04 +0100
From: Biju <biju.das.au@...il.com>
To: Uwe Kleine-König <ukleinek@...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>
Cc: Biju Das <biju.das.jz@...renesas.com>,
	linux-pwm@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-renesas-soc@...r.kernel.org,
	Prabhakar Mahadev Lad <prabhakar.mahadev-lad.rj@...renesas.com>,
	Biju Das <biju.das.au@...il.com>
Subject: [PATCH v3 0/8] Add RZ/G3E GPT support

From: Biju Das <biju.das.jz@...renesas.com>

Add RZ/G3E GPT support. It has multiple clocks and resets compared to
RZ/G2L. Also prescale field width and factor for calculating prescale
are different.

This patch series depend upon[1]

[1]
https://lore.kernel.org/all/20250915163637.3572-1-biju.das.jz@bp.renesas.com/

v2->v3:
 * Added Rb tag from Rob for bindings patch
 * Dropped wave form callback conversion from this patch series as
   it is covered in another series[1]
 * Added suspend/resume support.
v1->v2:
 * Created separate document for RZ/G3E GPT.
 * Updated commit header and description for binding patch.
 * Added waveform callback conversion to this series.
 * Collected tag.
 * Added link to hardware manual
 * Updated limitation section in driver patch.

Biju Das (8):
  dt-bindings: pwm: Document RZ/G3E GPT support
  pwm: rzg2l-gpt: Add info variable to struct rzg2l_gpt_chip
  pwm: rzg2l-gpt: Add prescale_pow_of_two_mult_factor variable to struct
    rzg2l_gpt_info
  pwm: rzg2l-gpt: Add calculate_prescale() callback to struct
    rzg2l_gpt_info
  pwm: rzg2l-gpt: Add RZ/G3E support
  pwm: rzg2l-gpt: Add suspend/resume support
  arm64: dts: renesas: r9a09g047: Add GPT nodes
  arm64: dts: renesas: r9a09g047e57-smarc: Enable GPT on carrier board

 .../bindings/pwm/renesas,rzg3e-gpt.yaml       | 323 ++++++++++++++++++
 arch/arm64/boot/dts/renesas/r9a09g047.dtsi    | 184 ++++++++++
 .../boot/dts/renesas/r9a09g047e57-smarc.dts   |  13 +
 drivers/pwm/pwm-rzg2l-gpt.c                   | 209 ++++++++++--
 4 files changed, 704 insertions(+), 25 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/pwm/renesas,rzg3e-gpt.yaml


base-commit: bf2602a3cb2381fb1a04bf1c39a290518d2538d1
-- 
2.43.0