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Remove unnecessary 'if' macros for previous kernel versions.
After removing kernel 6.1 the kernel is always >= 6.6 so the conditions
are unnecessary.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
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Adapt to changed function pointer prototypes.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
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Import driver for I2C-connected HolTek MCU controlling the RGBW LED
found in Adtran SmartRG devices.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
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This moves the ledbar driver to generic, to be also used by the ramips target.
Signed-off-by: Sven Wegener <sven.wegener@stealer.net>
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The LEDs connected to the MCU are so-called smart LEDs and their signal is
daisy-chained. Because of this, the MCU needs to be told how many LEDs are
connected. It also means the LEDs could be individually controlled, if the MCU
has a command for this.
Signed-off-by: Sven Wegener <sven.wegener@stealer.net>
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During GPIO initialization the pin state flips and triggers a reset of
the ledbar MCU. It needs to be moved through an initialization sequence
before working correctly.
Signed-off-by: Sven Wegener <sven.wegener@stealer.net>
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Some versions of the ledbar MCU have a reset pin. It needs to be
correctly initialized or we might keep the MCU in reset state.
Signed-off-by: Sven Wegener <sven.wegener@stealer.net>
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There are commands that return more than one byte of response.
Signed-off-by: Sven Wegener <sven.wegener@stealer.net>
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Or the comparison against a signed char is always true, because the
literal 0xaa is treated as an unsigned int, to which the signed char is
casted during comparison. 0xaa is above the positive values of a signed
char and negative signed char values result in values larger than 0xaa
when casted to unsigned int.
Signed-off-by: Sven Wegener <sven.wegener@stealer.net>
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The read response is in the i2c_response variable. Also use %hhx format,
because we're dealing with a single char.
Signed-off-by: Sven Wegener <sven.wegener@stealer.net>
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It's already set to output with GPIOD_OUT_LOW.
Signed-off-by: Sven Wegener <sven.wegener@stealer.net>
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The polarity of the signal is set in the device dts.
Signed-off-by: Sven Wegener <sven.wegener@stealer.net>
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Signed-off-by: Felix Fietkau <nbd@nbd.name>
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