linux-kernel - [PATCH v5 0/2] LED: Add basic LP5860 LED matrix driver

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Message-Id: <20251110-v6-14-topic-ti-lp5860-v5-0-5b777b99a905@pengutronix.de>
Date: Mon, 10 Nov 2025 07:35:32 +0100
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 v5 0/2] 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 v5:
- remove global_brightness code and sysfs ABI
- rebase to v6.18-rc1
- Link to v4: https://lore.kernel.org/r/20251007-v6-14-topic-ti-lp5860-v4-0-967758069b60@pengutronix.de

Changes in v4:
- move to drivers/leds/rgb
- fix some upper/lowercase
- use ATTRIBUTE_GROUPS macro
- unwrap some lines
- Link to v3: https://lore.kernel.org/r/20250911-v6-14-topic-ti-lp5860-v3-0-390738ef9d71@pengutronix.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 (2):
      dt-bindings: leds: add lp5860 LED controller
      leds: add support for TI LP5860 LED driver chip

 .../devicetree/bindings/leds/leds-lp5860.yaml      | 111 ++++++++
 drivers/leds/rgb/Kconfig                           |  27 ++
 drivers/leds/rgb/Makefile                          |   2 +
 drivers/leds/rgb/leds-lp5860-core.c                | 202 ++++++++++++++
 drivers/leds/rgb/leds-lp5860-spi.c                 |  89 ++++++
 include/linux/platform_data/leds-lp5860.h          | 305 +++++++++++++++++++++
 6 files changed, 736 insertions(+)
---
base-commit: 1447d74a2d34d824c5fef5eafc9408f520d4f90f
change-id: 20250219-v6-14-topic-ti-lp5860-f25a48b62c79

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