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[RESEND,0/2] leds: gpio: Add devlink between the leds-gpio device and the gpio used.

Message ID 20240220133950.138452-1-herve.codina@bootlin.com
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Series leds: gpio: Add devlink between the leds-gpio device and the gpio used. | expand

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Herve Codina Feb. 20, 2024, 1:39 p.m. UTC 
Hi,

Note: Resent this series with Saravana added in Cc.

When a gpio used by the leds-gpio device is removed, the leds-gpio
device continues to use this gpio. Also, when the gpio is back, the
leds-gpio still uses the old removed gpio.

A consumer/supplier relationship is missing between the leds-gpio device
(consumer) and the gpio used (supplier).

This series adds an addionnal devlink between this two device.
With this link when the gpio is removed, the leds-gpio device is also
removed.

Best regards,
Hervé Codina

Herve Codina (2):
  gpiolib: Introduce gpiod_device_add_link()
  leds: gpio: Add devlinks between the gpio consumed and the gpio leds
    device

 drivers/gpio/gpiolib.c        | 32 ++++++++++++++++++++++++++++++++
 drivers/leds/leds-gpio.c      | 15 +++++++++++++++
 include/linux/gpio/consumer.h |  5 +++++
 3 files changed, 52 insertions(+)