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Message-ID: <20240526105136.721529-1-paroga@paroga.com>
Date: Sun, 26 May 2024 12:51:28 +0200
From: Patrick Gansterer <paroga@...oga.com>
To: dri-devel@...ts.freedesktop.org,
linux-leds@...r.kernel.org,
devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org,
linux-fbdev@...r.kernel.org
Cc: Patrick Gansterer <paroga@...oga.com>,
Lee Jones <lee@...nel.org>,
Daniel Thompson <daniel.thompson@...aro.org>,
Jingoo Han <jingoohan1@...il.com>,
Pavel Machek <pavel@....cz>,
Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>,
Helge Deller <deller@....de>,
Sam Ravnborg <sam@...nborg.org>
Subject: [PATCH v6 0/2] backlight: Add new lm3509 backlight driver
This is a general driver for LM3509 backlight chip of TI.
LM3509 is High Efficiency Boost for White LEDs and/or OLED Displays with
Dual Current Sinks. This driver supports OLED/White LED select, brightness
control and sub/main control.
The datasheet can be found at http://www.ti.com/product/lm3509.
---
Changes in v6:
Removed unnecessary allOf in device tree binding
v5: https://lore.kernel.org/all/20240330145931.729116-1-paroga@paroga.com/
Changes in v5:
Renamed lm3509_bl_led_pdata to lm3509_bl_led_data
Set backlight_properties.scale to BACKLIGHT_SCALE_NON_LINEAR
Add dev_err_probe() for first write to a register
Use dev_err_probe() instead of dev_err()
v4: https://lore.kernel.org/all/20240310135344.3455294-1-paroga@paroga.com/
Changes in v4:
Use backlight_*() to access backlight_device
Do not set backlight_properties.power
v3: https://lore.kernel.org/all/20240309132521.1290173-1-paroga@paroga.com/
Changes in v3:
Improved device tree bindings documentation
v2: https://lore.kernel.org/all/20240308215617.1729664-1-paroga@paroga.com/
Changes in v2:
Add device tree nodes for each output
Addressed multiple smaller review comments
v1: https://lore.kernel.org/all/20240302212757.1871164-1-paroga@paroga.com/
Patrick Gansterer (2):
dt-bindings: backlight: Add Texas Instruments LM3509
backlight: Add new lm3509 backlight driver
.../bindings/leds/backlight/ti,lm3509.yaml | 136 +++++++
drivers/video/backlight/Kconfig | 7 +
drivers/video/backlight/Makefile | 1 +
drivers/video/backlight/lm3509_bl.c | 340 ++++++++++++++++++
4 files changed, 484 insertions(+)
create mode 100644 Documentation/devicetree/bindings/leds/backlight/ti,lm3509.yaml
create mode 100644 drivers/video/backlight/lm3509_bl.c
--
2.45.1
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