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Documentation: dt: Add TI SCI clock driver

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Add a clock implementation, TI SCI clock, that will hook to the common
clock framework, and allow each clock to be controlled via TI SCI
protocol.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
This commit is contained in:
Tero Kristo 2017-05-22 16:01:52 +03:00 committed by Stephen Boyd
parent b608a89221
commit 8f306cfe43
2 changed files with 38 additions and 0 deletions
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37
Documentation/devicetree/bindings/clock/ti,sci-clk.txt Normal file
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Texas Instruments TI-SCI Clocks
===============================
All clocks on Texas Instruments' SoCs that contain a System Controller,
are only controlled by this entity. Communication between a host processor
running an OS and the System Controller happens through a protocol known
as TI-SCI[1]. This clock implementation plugs into the common clock
framework and makes use of the TI-SCI protocol on clock API requests.
[1] Documentation/devicetree/bindings/arm/keystone/ti,sci.txt
Required properties:
-------------------
- compatible: Must be "ti,k2g-sci-clk"
- #clock-cells: Shall be 2.
In clock consumers, this cell represents the device ID and clock ID
exposed by the PM firmware. The assignments can be found in the header
files <dt-bindings/genpd/<soc>.h> (which covers the device IDs) and
<dt-bindings/clock/<soc>.h> (which covers the clock IDs), where <soc>
is the SoC involved, for example 'k2g'.
Examples:
--------
pmmc: pmmc {
compatible = "ti,k2g-sci";
k2g_clks: clocks {
compatible = "ti,k2g-sci-clk";
#clock-cells = <2>;
};
};
uart0: serial@2530c00 {
compatible = "ns16550a";
clocks = <&k2g_clks 0x2c 0>;
};

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@ -12630,6 +12630,7 @@ F: include/linux/soc/ti/ti_sci_protocol.h
F: Documentation/devicetree/bindings/soc/ti/sci-pm-domain.txt
F: include/dt-bindings/genpd/k2g.h
F: drivers/soc/ti/ti_sci_pm_domains.c
F: Documentation/devicetree/bindings/clock/ti,sci-clk.txt
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