mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-07-22 03:27:30 -04:00
fc13a4b9b9
Introduce devm_acpm_get_by_phandle() to standardize how consumer drivers acquire a handle to the ACPM IPC interface. Enforce the use of the "samsung,acpm-ipc" property name across the SoC and simplify the boilerplate code in client drivers. The first consumer of this helper is the Exynos ACPM Thermal Management Unit (TMU) driver. The TMU utilizes a hybrid management approach: direct register access from the Application Processor (AP) is restricted to the interrupt pending (INTPEND) registers for event identification. High-level functional tasks, such as sensor initialization, threshold programming, and temperature reads, are delegated to the ACPM firmware via this IPC interface. Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org> Reviewed-by: Peter Griffin <peter.griffin@linaro.org> Link: https://patch.msgid.link/20260515-acpm-tmu-helpers-v2-6-8ca011d5a965@linaro.org Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>