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| author | Christian Marangi <ansuelsmth@gmail.com> | 2024-06-26 19:00:25 +0300 |
|---|---|---|
| committer | Lee Jones <lee@kernel.org> | 2024-06-26 19:08:31 +0300 |
| commit | 30c6743cc89cdb357d1f8a98978da0f7c138130b (patch) | |
| tree | 0abf4fb45e2bd91b7f149edb05f0f04b3a19b696 /drivers/leds/Kconfig | |
| parent | 49d943a426d1e2c034ff2f132f65590dbdc01fbd (diff) | |
| download | linux-30c6743cc89cdb357d1f8a98978da0f7c138130b.tar.xz | |
leds: leds-lp5569: Add support for Texas Instruments LP5569
Add support for Texas Instruments LP5569 LED driver.
Texas Instruments LP5569 is 9 channels chip with programmable engines.
It almost a copy of LP5523 with fundamental changes to regs order and
regs content.
Has difference in how the clock is handled and doesn't support detecting
clock time automatically, different handling for selftest and different
scheme for the status regs.
LED chip supports ENGINE and MUX to group LED and run precompiled code
with magic values to run patterns. This is loaded via the sysfs entry
and it's passed as a string of ASCII HEX char.
One some devices using this LED Controller (a NBG7815 Router) it was
found loading big precompiled pattern with up to 96 bytes of code. To
have support for this "extended" scenario, hardcode each engine to
support 4 pages of precompiled pattern (128 bytes of code) and 1 page
for each MUX. This gives plenty of space for any kind precompiled
pattern keeping simple logic for page handling of each engine and mux.
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Link: https://lore.kernel.org/r/20240626160027.19703-21-ansuelsmth@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
Diffstat (limited to 'drivers/leds/Kconfig')
| -rw-r--r-- | drivers/leds/Kconfig | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig index 474c51ad361d..8d9d8da376e4 100644 --- a/drivers/leds/Kconfig +++ b/drivers/leds/Kconfig @@ -429,7 +429,7 @@ config LEDS_LP50XX module will be called leds-lp50xx. config LEDS_LP55XX_COMMON - tristate "Common Driver for TI/National LP5521/5523/55231/5562/8501" + tristate "Common Driver for TI/National LP5521/5523/55231/5562/5569/8501" depends on LEDS_CLASS depends on LEDS_CLASS_MULTICOLOR depends on OF @@ -437,8 +437,8 @@ config LEDS_LP55XX_COMMON select FW_LOADER select FW_LOADER_USER_HELPER help - This option supports common operations for LP5521/5523/55231/5562/8501 - devices. + This option supports common operations for LP5521/5523/55231/5562/5569/ + 8501 devices. config LEDS_LP5521 tristate "LED Support for N.S. LP5521 LED driver chip" @@ -471,6 +471,16 @@ config LEDS_LP5562 Driver provides direct control via LED class and interface for programming the engines. +config LEDS_LP5569 + tristate "LED Support for TI LP5569 LED driver chip" + depends on LEDS_CLASS && I2C + depends on LEDS_LP55XX_COMMON + help + If you say yes here you get support for TI LP5569 LED driver. + It is 9 channels chip with programmable engines. + Driver provides direct control via LED class and interface for + programming the engines. + config LEDS_LP8501 tristate "LED Support for TI LP8501 LED driver chip" depends on LEDS_CLASS && I2C |