pwm: pca9685: Use bulk write to atomicially update registers

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[ Upstream commit de58556132 ]

The output of a PWM channel is configured by four register values. Write
them in a single i2c transaction to ensure glitch free updates.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Link: https://lore.kernel.org/r/bfa8c0267c9ec059d0d77f146998d564654c75ca.1753784092.git.u.kleine-koenig@baylibre.com
Signed-off-by: Uwe Kleine-König <ukleinek@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Uwe Kleine-König 2025-07-29 12:36:01 +02:00 • committed by Greg Kroah-Hartman

parent 03d4d9a1d8

commit b89e25efa2

1 changed files with 29 additions and 17 deletions

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drivers/pwm/pwm-pca9685.c

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