[PATCH 1/3] Documentation: dt: Add TI SCI clock driver
From: Tero Kristo <hidden>
Date: 2016-10-21 12:45:59
Also in:
linux-clk, linux-devicetree
Subsystem:
common clk framework, open firmware and flattened device tree bindings, the rest · Maintainers:
Michael Turquette, Stephen Boyd, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
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 <redacted> --- .../devicetree/bindings/clock/ti,sci-clk.txt | 37 ++++++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 38 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/ti,sci-clk.txt
diff --git a/Documentation/devicetree/bindings/clock/ti,sci-clk.txt b/Documentation/devicetree/bindings/clock/ti,sci-clk.txt
new file mode 100644
index 0000000..bfc3ca4
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/ti,sci-clk.txt@@ -0,0 +1,37 @@ +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: k2g_clks { + compatible = "ti,k2g-sci-clk"; + #clock-cells = <2>; + }; +}; + +uart0: serial at 2530c00 { + compatible = "ns16550a"; + clocks = <&k2g_clks K2G_DEV_UART0 0>; +};
diff --git a/MAINTAINERS b/MAINTAINERS
index 3eaac5ed..3ee7c7a 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS@@ -11895,6 +11895,7 @@ 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 THANKO'S RAREMONO AM/FM/SW RADIO RECEIVER USB DRIVER M: Hans Verkuil <hverkuil@xs4all.nl>
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1.9.1