From e1c13aed4a1641550e8c9518c96f016e1d52d09b Mon Sep 17 00:00:00 2001 From: Yijie Yang Date: Tue, 11 Aug 2026 16:46:47 +0800 Subject: dt-bindings: interconnect: qcom-bwmon: Add Maili cpu-bwmon compatible Add the Qualcomm Maili SoC compatible string for the CPU bandwidth monitor (BWMONv4). This falls back to the sdm845-bwmon compatible, consistent with the existing pattern used by other recent SoCs such as sm8750 and kaanapali. Signed-off-by: Yijie Yang Acked-by: Krzysztof Kozlowski Reviewed-by: Jingyi Wang Link: https://patch.msgid.link/20260811-bwmon-v2-1-80f7f150ab9e@oss.qualcomm.com Signed-off-by: Rob Herring (Arm) --- Documentation/driver-api/devfreq.rst | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 Documentation/driver-api/devfreq.rst (limited to 'Documentation/driver-api/devfreq.rst') diff --git a/Documentation/driver-api/devfreq.rst b/Documentation/driver-api/devfreq.rst new file mode 100644 index 000000000..4a0bf87a3 --- /dev/null +++ b/Documentation/driver-api/devfreq.rst @@ -0,0 +1,30 @@ +.. SPDX-License-Identifier: GPL-2.0 + +======================== +Device Frequency Scaling +======================== + +Introduction +------------ + +This framework provides a standard kernel interface for Dynamic Voltage and +Frequency Switching on arbitrary devices. + +It exposes controls for adjusting frequency through sysfs files which are +similar to the cpufreq subsystem. + +Devices for which current usage can be measured can have their frequency +automatically adjusted by governors. + +API +--- + +Device drivers need to initialize a :c:type:`devfreq_profile` and call the +:c:func:`devfreq_add_device` function to create a :c:type:`devfreq` instance. + +.. kernel-doc:: include/linux/devfreq.h +.. kernel-doc:: include/linux/devfreq-event.h +.. kernel-doc:: drivers/devfreq/devfreq.c + :export: +.. kernel-doc:: drivers/devfreq/devfreq-event.c + :export: -- cgit v1.3.1