pwm subsystem · Maintained

Maintainers

• M Uwe Kleine-König <ukleinek@kernel.org>

Paths

• F Documentation/devicetree/bindings/pwm/
• F Documentation/driver-api/pwm.rst
• F drivers/pwm/
• F include/dt-bindings/pwm/
• F include/linux/pwm.h

Last 30 days

Most active threads (last 7 days)

• WARM2d [PATCH 0/2] pwm: add Axiado AX3000 PWM support
  2026-06-18 12:27 · 2 replies in 7d · Petar Stepanovic <hidden>
• WARM3d [PATCH v4 0/2] pwm: Add Nuvoton MA35D1 PWM controller support
  2026-06-17 02:59 · 2 replies in 7d · Chi-Wen Weng <hidden>

Active reviewers (last 30 days)

• Stanimir Varbanov <hidden>
  4 attestations (4 Co-developed-by) · last on 2026-06-12
• Krzysztof Kozlowski <hidden>
  2 attestations (2 Reviewed-by) · last on 2026-06-12
• Trevor Gamblin <tgamblin@baylibre.com>
  1 attestation (1 Reviewed-by) · last on 2026-06-17
• Krzysztof Kozlowski <hidden>
  1 attestation (1 Reviewed-by) · last on 2026-06-17
• Conor Dooley <conor.dooley@microchip.com>
  1 attestation (1 Acked-by) · last on 2026-05-23
• Uwe Kleine-König <ukleinek@kernel.org>
  1 attestation (1 Reviewed-by) · last on 2026-05-23

Recent patches

Most-recent 30 patches in this subsystem on linux-arm-kernel (capped at 30), ordered by date desc.

• WARM2d [PATCH 2/2] pwm: add Axiado AX3000 PWM driver
  2026-06-18 · Petar Stepanovic <hidden>
• WARM2d [PATCH 1/2] dt-bindings: pwm: add Axiado AX3000 PWM
  2026-06-18 · Petar Stepanovic <hidden>
• WARM3d REVIEWED: 2 (2M) [PATCH v4 2/2] pwm: Add Nuvoton MA35D1 PWM controller support
  2026-06-17 · Chi-Wen Weng <hidden>
• WARM3d REVIEWED: 1 (0M) [PATCH v4 1/2] dt-bindings: pwm: Add Nuvoton MA35D1 PWM controller
  2026-06-17 · Chi-Wen Weng <hidden>
• COOLING5d [PATCH v5 2/3] pwm: rp1: Add RP1 PWM controller driver
  2026-06-12 · Andrea della Porta <andrea.porta@suse.com>
• COOLING5d REVIEWED: 1 (0M) [PATCH v5 1/3] dt-bindings: pwm: Add Raspberry Pi RP1 PWM controller
  2026-06-12 · Andrea della Porta <andrea.porta@suse.com>
• COOLING7d [PATCH v4 2/3] pwm: rp1: Add RP1 PWM controller driver
  2026-06-03 · Andrea della Porta <andrea.porta@suse.com>
• COOLING7d REVIEWED: 1 (0M) [PATCH v4 1/3] dt-bindings: pwm: Add Raspberry Pi RP1 PWM controller
  2026-06-03 · Andrea della Porta <andrea.porta@suse.com>
• COOLING9d REVIEWED: 4 (4M) [PATCH v4 2/2] dt-bindings: pwm: stmpe: drop legacy binding
  2026-05-23 · Manish Baing <hidden>
• COLD25d [PATCH v2] pwm: imx27: Fix variable truncation in .apply()
  2026-05-22 · Ronaldo Nunez <hidden>
• DORMANTno replies [PATCH v3 2/2] pwm: meson: Add support for Amlogic S7
  2026-05-21 · Xianwei Zhao via B4 Relay <devnull+xianwei.zhao.amlogic.com@kernel.org>
• COLD30d REVIEWED: 2 (1M) [PATCH v3 1/2] dt-bindings: pwm: amlogic: Add new bindings for S6 S7 S7D
  2026-05-21 · Xianwei Zhao via B4 Relay <devnull+xianwei.zhao.amlogic.com@kernel.org>
• COLD29d [PATCH] pwm: imx27: Fix variable truncation in .apply()
  2026-05-21 · Ronaldo Nunez <hidden>
• COLD30d [PATCH v3] dt-bindings: mfd: st,stmpe: fix PWM schema and drop legacy binding
  2026-05-09 · Manish Baing <hidden>
• COLD23d [PATCH v2] dt-bindings: pwm: stmpe: drop legacy binding
  2026-05-08 · Manish Baing <hidden>
• COLD21d REVIEWED: 10 (9M) [PATCH v3 3/5] dt-bindings: pwm: apple,s5l-fpwm: Add t8122 compatible
  2026-05-07 · Janne Grunau <j@jannau.net>
• COLD18d REVIEWED: 10 (9M) [PATCH v2 4/6] dt-bindings: pwm: apple,s5l-fpwm: Add t8122 compatible
  2026-05-05 · Janne Grunau <j@jannau.net>
• COLD47d [PATCH] dt-bindings: pwm: stmpe: convert to DT schema
  2026-05-01 · Manish Baing <hidden>
• COLD27d [PATCH] pwm: atmel-tcb: Remove unneeded semicolon
  2026-04-28 · Chen Ni <hidden>
• COLD57d [GIT PULL] soc: late changes for 7.1
  2026-04-23 · "Arnd Bergmann" <arnd@arndb.de>
• COLD22d [PATCH v3 2/3] pwm: rp1: Add RP1 PWM controller driver
  2026-04-23 · Andrea della Porta <andrea.porta@suse.com>
• COLD22d REVIEWED: 1 (0M) [PATCH v3 1/3] dt-bindings: pwm: Add Raspberry Pi RP1 PWM controller
  2026-04-23 · Andrea della Porta <andrea.porta@suse.com>
• COLD57d Re: [PATCH v2] pwm: atmel-tcb: Cache clock rates and mark chip as atomic
  2026-04-21 · Uwe Kleine-König <ukleinek@kernel.org>
• COLD30d [PATCH v5 3/6] pwm: Add rockchip PWMv4 driver
  2026-04-20 · Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
• COLD30d REVIEWED: 10 (10M) [PATCH v5 1/6] dt-bindings: pwm: Add a new binding for rockchip,rk3576-pwm
  2026-04-20 · Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
• COLD60d [PATCH v4 3/5] pwm: Add rockchip PWMv4 driver
  2026-04-20 · Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
• COLD60d REVIEWED: 10 (10M) [PATCH v4 1/5] dt-bindings: pwm: Add a new binding for rockchip,rk3576-pwm
  2026-04-20 · Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
• COLD57d [PATCH v2] pwm: atmel-tcb: Cache clock rates and mark chip as atomic
  2026-04-19 · Sangyun Kim <hidden>
• COLD25d REVIEWED: 6 (5M) [PATCH v6 2/4] pwm: sun8i: Add H616 PWM support
  2026-04-16 · Richard Genoud <richard.genoud@bootlin.com>
• COLD25d REVIEWED: 3 (3M) [PATCH v6 1/4] dt-bindings: pwm: allwinner: add h616 pwm compatible
  2026-04-16 · Richard Genoud <richard.genoud@bootlin.com>

Needs attention (review trailers in, no pickup)

Patches with review trailers that haven't landed in mainline and haven't been Acked by a maintainer. Oldest first.

• COLD33d REVIEWED: 2 (1M) [PATCH v2 1/2] dt-bindings: pwm: amlogic: Add new bindings for S6 S7 S7D
  2026-04-02 · Xianwei Zhao via B4 Relay <devnull+xianwei.zhao.amlogic.com@kernel.org> · 2 Reviewed-by
• COLD60d REVIEWED: 10 (10M) [PATCH v4 1/5] dt-bindings: pwm: Add a new binding for rockchip,rk3576-pwm
  2026-04-20 · Nicolas Frattaroli <nicolas.frattaroli@collabora.com> · 2 Reviewed-by
• COLD30d REVIEWED: 10 (10M) [PATCH v5 1/6] dt-bindings: pwm: Add a new binding for rockchip,rk3576-pwm
  2026-04-20 · Nicolas Frattaroli <nicolas.frattaroli@collabora.com> · 2 Reviewed-by
• COLD30d REVIEWED: 2 (1M) [PATCH v3 1/2] dt-bindings: pwm: amlogic: Add new bindings for S6 S7 S7D
  2026-05-21 · Xianwei Zhao via B4 Relay <devnull+xianwei.zhao.amlogic.com@kernel.org> · 2 Reviewed-by
• COOLING7d REVIEWED: 1 (0M) [PATCH v4 1/3] dt-bindings: pwm: Add Raspberry Pi RP1 PWM controller
  2026-06-03 · Andrea della Porta <andrea.porta@suse.com> · 1 Reviewed-by

Quiet for 30+ days

Patches with no review trailers and no replies. Either the author is heads-down elsewhere or these slipped through. Oldest first.

• DORMANTno replies [PATCH] pwm: mediatek: Add error handling for zero rate in PWM state
  2025-12-15 · 20190311120055 created <hidden>
• COLD57d Re: [PATCH] pwm: atmel-tcb: Fix sleeping function called from invalid context
  2026-04-15 · Uwe Kleine-König <ukleinek@kernel.org>
• DORMANTno replies [PATCH v3 2/2] pwm: meson: Add support for Amlogic S7
  2026-05-21 · Xianwei Zhao via B4 Relay <devnull+xianwei.zhao.amlogic.com@kernel.org>