Linux kernel stable tree (mirror) https://git.radix-linux.su/kernel/linux.git/atom?h=v6.19.11 2026-02-26T23:01:27+00:00 2026-02-26T23:01:27+00:00 Duje Mihanović duje@dujemihanovic.xyz 2025-12-17T18:14:23+00:00 urn:sha1:d606cc4d5eea2a2712631d547e8efadd32e6cd14 [ Upstream commit f4b830a5371914239756b0599e5dc9d4c328e387 ] It is possible to put the KTD2801 chip in an unknown/undefined state by changing the brightness very rapidly (for example, with a brightness slider). When this happens, the brightness is stuck on max and cannot be changed until the chip is power cycled. Fix this by disabling interrupts while talking to the chip. While at it, make expresswire_power_off() use fsleep() and also unexport some functions meant to be internal. Fixes: 1368d06dd2c9 ("leds: Introduce ExpressWire library") Tested-by: Karel Balej <balejk@matfyz.cz> Signed-off-by: Duje Mihanović <duje@dujemihanovic.xyz> Link: https://patch.msgid.link/20251217-expresswire-fix-v2-1-4a02b10acd96@dujemihanovic.xyz Signed-off-by: Lee Jones <lee@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org> 2024-03-07T08:45:31+00:00 Andy Shevchenko andriy.shevchenko@linux.intel.com 2024-02-23T20:30:00+00:00 urn:sha1:7774f3d1dd3822e938e236df67766436c0debd11 Update header inclusions to follow IWYU (Include What You Use) principle. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Duje Mihanović <duje.mihanovic@skole.hr> Link: https://lore.kernel.org/r/20240223203010.881065-1-andriy.shevchenko@linux.intel.com Signed-off-by: Lee Jones <lee@kernel.org> 2024-03-07T08:45:03+00:00 Duje Mihanović duje.mihanovic@skole.hr 2024-01-25T15:30:53+00:00 urn:sha1:1368d06dd2c99186174290c03d79c132db16efe2 The ExpressWire protocol is shared between at least KTD2692 and KTD2801 with slight differences such as timings and the former not having a defined set of pulses for enabling the protocol (possibly because it does not support PWM unlike KTD2801). Despite these differences the ExpressWire handling code can be shared between the two, so in preparation for adding KTD2801 support introduce a library implementing this protocol. Suggested-by: Daniel Thompson <daniel.thompson@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by: Duje Mihanović <duje.mihanovic@skole.hr> Link: https://lore.kernel.org/r/20240125-ktd2801-v5-1-e22da232a825@skole.hr Signed-off-by: Lee Jones <lee@kernel.org>