linux-kernel - [PATCH v3 0/3] LED: Add basic LP5860 LED matrix driver

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Message-Id: <20250911-v6-14-topic-ti-lp5860-v3-0-390738ef9d71@pengutronix.de>
Date: Thu, 11 Sep 2025 08:59:30 +0200
From: Steffen Trumtrar <s.trumtrar@...gutronix.de>
To: Pavel Machek <pavel@....cz>, Lee Jones <lee@...nel.org>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Steffen Trumtrar <kernel@...gutronix.de>, Pavel Machek <pavel@...nel.org>, 
 Mark Brown <broonie@...nel.org>
Cc: linux-leds@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-spi@...r.kernel.org, linux-kernel@...r.kernel.org, 
 kernel@...gutronix.de, Steffen Trumtrar <s.trumtrar@...gutronix.de>
Subject: [PATCH v3 0/3] LED: Add basic LP5860 LED matrix driver

The lp5860 is a LED matrix driver with 18 constant current sinks and 11
scan switches which allows controlling up to 196 LED dots.

This series adds just the basic support for the device on the SPI bus.
It is also possible to use it on I2C. The interface can be
switched/selected via an interface select pin.

Signed-off-by: Steffen Trumtrar <s.trumtrar@...gutronix.de>
---
Changes in v3:
- fix c-styling errors
- rename functions/defines/variables
- split out ABI documentation
- rename [rgb]_current* to [rgb]_global_brightness*
- rework multi-led probing
- Link to v2: https://lore.kernel.org/r/20250514-v6-14-topic-ti-lp5860-v2-0-72ecc8fa4ad7@pengutronix.de

Changes in v2:
- add open and short detection
- add ABI documentation
- fix devicetree binding (maxItems/minItems)
- fix commit message to imperative mood
- minor cleanup
- Link to v1: https://lore.kernel.org/r/20250220-v6-14-topic-ti-lp5860-v1-0-42874bdc7513@pengutronix.de

---
Steffen Trumtrar (3):
      dt-bindings: leds: add lp5860 LED controller
      leds: add support for TI LP5860 LED driver chip
      Documentation: ABI: add lp5860 led matrix controller

 Documentation/ABI/testing/sysfs-class-spi-lp5860   |  23 ++
 .../devicetree/bindings/leds/leds-lp5860.yaml      | 111 ++++++++
 drivers/leds/Kconfig                               |  28 ++
 drivers/leds/Makefile                              |   2 +
 drivers/leds/leds-lp5860-core.c                    | 222 +++++++++++++++
 drivers/leds/leds-lp5860-spi.c                     |  90 ++++++
 include/linux/platform_data/leds-lp5860.h          | 305 +++++++++++++++++++++
 7 files changed, 781 insertions(+)
---
base-commit: a32cf8a562e776ee75d4fa9432719e855d70fc03
change-id: 20250219-v6-14-topic-ti-lp5860-f25a48b62c79

Best regards,
-- 
Steffen Trumtrar <s.trumtrar@...gutronix.de>