Initial commit; kernel source import

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Nathan
2025-04-06 23:50:55 -05:00
commit 25c6d769f4
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* Qualcomm SSBI
Some Qualcomm MSM devices contain a point-to-point serial bus used to
communicate with a limited range of devices (mostly power management
chips).
These require the following properties:
- compatible: "qcom,ssbi"
- qcom,controller-type
indicates the SSBI bus variant the controller should use to talk
with the slave device. This should be one of "ssbi", "ssbi2", or
"pmic-arbiter". The type chosen is determined by the attached
slave.
The slave device should be the single child node of the ssbi device
with a compatible field.

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* MSM Timer
Properties:
- compatible : Should at least contain "qcom,msm-timer". More specific
properties specify which subsystem the timers are paired with.
"qcom,kpss-timer" - krait subsystem
"qcom,scss-timer" - scorpion subsystem
- interrupts : Interrupts for the the debug timer, the first general purpose
timer, and optionally a second general purpose timer in that
order.
- reg : Specifies the base address of the timer registers.
- clock-frequency : The frequency of the debug timer and the general purpose
timer(s) in Hz in that order.
Optional:
- cpu-offset : per-cpu offset used when the timer is accessed without the
CPU remapping facilities. The offset is
cpu-offset + (0x10000 * cpu-nr).
Example:
timer@200a000 {
compatible = "qcom,scss-timer", "qcom,msm-timer";
interrupts = <1 1 0x301>,
<1 2 0x301>,
<1 3 0x301>;
reg = <0x0200a000 0x100>;
clock-frequency = <19200000>,
<32768>;
cpu-offset = <0x40000>;
};