linux-kernel - [PATCH 0/5] pwm: pca9586: Convert to waveform API

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Message-ID: <cover.1753784092.git.u.kleine-koenig@baylibre.com>
Date: Tue, 29 Jul 2025 12:35:59 +0200
From: Uwe Kleine-König <u.kleine-koenig@...libre.com>
To: linux-pwm@...r.kernel.org
Cc: David Jander <david@...tonic.nl>,
	Clemens Gruber <clemens.gruber@...ruber.com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH 0/5] pwm: pca9586: Convert to waveform API

Hello,

this series eventually converts the pca9685 driver to the new waveform
callbacks. It starts with a few minor fixes and cleanups before the
actual conversion.

Note that this driver was the only one that supported the usage_power
flag and when it was set increased the duty_offset. Now duty_offset is
under control of the consumer, so no functionallity is lost.

Patch #4 drops GPIO support. Though the internal details differ a bit,
this is superseded by patch
https://lore.kernel.org/linux-pwm/20250717151117.1828585-2-u.kleine-koenig@baylibre.com
which provides generic GPIO support for waveform PWM chips.

Best regards
Uwe

Uwe Kleine-König (5):
  pwm: pca9685: Don't disable hardware in .free()
  pwm: pca9685: Use bulk write to atomicially update registers
  pwm: pca9685: Make use of register caching in regmap
  pwm: pca9685: Drop GPIO support
  pwm: pca9586: Convert to waveform API

 drivers/pwm/pwm-pca9685.c | 555 ++++++++++++++++----------------------
 1 file changed, 229 insertions(+), 326 deletions(-)

base-commit: 68b9272ca7ac948b71aba482ef8244dee8032f46
prerequisite-patch-id: 917be1150626d7632f99929ac9f7dc1449864979
-- 
2.50.0