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Commit 3f6eec99 authored by Mike Turquette's avatar Mike Turquette
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Merge branch 'for-v3.16/ti-clk-drv' of github.com:t-kristo/linux-pm into clk-next

parents 963649d7 7e148070
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+19 −5
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@@ -14,18 +14,32 @@ a subtype of a DPLL [2], although a simplified one at that.
[2] Documentation/devicetree/bindings/clock/ti/dpll.txt

Required properties:
- compatible : shall be "ti,dra7-apll-clock"
- compatible : shall be "ti,dra7-apll-clock" or "ti,omap2-apll-clock"
- #clock-cells : from common clock binding; shall be set to 0.
- clocks : link phandles of parent clocks (clk-ref and clk-bypass)
- reg : address and length of the register set for controlling the APLL.
  It contains the information of registers in the following order:
	"control" - contains the control register base address
	"idlest" - contains the idlest register base address
	"control" - contains the control register offset
	"idlest" - contains the idlest register offset
	"autoidle" - contains the autoidle register offset (OMAP2 only)
- ti,clock-frequency : static clock frequency for the clock (OMAP2 only)
- ti,idlest-shift : bit-shift for the idlest field (OMAP2 only)
- ti,bit-shift : bit-shift for enable and autoidle fields (OMAP2 only)

Examples:
	apll_pcie_ck: apll_pcie_ck@4a008200 {
	apll_pcie_ck: apll_pcie_ck {
		#clock-cells = <0>;
		clocks = <&apll_pcie_in_clk_mux>, <&dpll_pcie_ref_ck>;
		reg = <0x4a00821c 0x4>, <0x4a008220 0x4>;
		reg = <0x021c>, <0x0220>;
		compatible = "ti,dra7-apll-clock";
	};

	apll96_ck: apll96_ck {
		#clock-cells = <0>;
		compatible = "ti,omap2-apll-clock";
		clocks = <&sys_ck>;
		ti,bit-shift = <2>;
		ti,idlest-shift = <8>;
		ti,clock-frequency = <96000000>;
		reg = <0x0500>, <0x0530>, <0x0520>;
	};
+10 −0
Original line number Diff line number Diff line
@@ -24,12 +24,14 @@ Required properties:
		"ti,omap4-dpll-core-clock",
		"ti,omap4-dpll-m4xen-clock",
		"ti,omap4-dpll-j-type-clock",
		"ti,omap5-mpu-dpll-clock",
		"ti,am3-dpll-no-gate-clock",
		"ti,am3-dpll-j-type-clock",
		"ti,am3-dpll-no-gate-j-type-clock",
		"ti,am3-dpll-clock",
		"ti,am3-dpll-core-clock",
		"ti,am3-dpll-x2-clock",
		"ti,omap2-dpll-core-clock",

- #clock-cells : from common clock binding; shall be set to 0.
- clocks : link phandles of parent clocks, first entry lists reference clock
@@ -41,6 +43,7 @@ Required properties:
	"mult-div1" - contains the multiplier / divider register base address
	"autoidle" - contains the autoidle register base address (optional)
  ti,am3-* dpll types do not have autoidle register
  ti,omap2-* dpll type does not support idlest / autoidle registers

Optional properties:
- DPLL mode setting - defining any one or more of the following overrides
@@ -73,3 +76,10 @@ Examples:
		clocks = <&sys_clkin_ck>, <&sys_clkin_ck>;
		reg = <0x90>, <0x5c>, <0x68>;
	};

	dpll_ck: dpll_ck {
		#clock-cells = <0>;
		compatible = "ti,omap2-dpll-core-clock";
		clocks = <&sys_ck>, <&sys_ck>;
		reg = <0x0500>, <0x0540>;
	};
+96 −0
Original line number Diff line number Diff line
Device Tree Clock bindings for ATL (Audio Tracking Logic) of DRA7 SoC.

The ATL IP is used to generate clock to be used to synchronize baseband and
audio codec. A single ATL IP provides four ATL clock instances sharing the same
functional clock but can be configured to provide different clocks.
ATL can maintain a clock averages to some desired frequency based on the bws/aws
signals - can compensate the drift between the two ws signal.

In order to provide the support for ATL and it's output clocks (which can be used
internally within the SoC or external components) two sets of bindings is needed:

Clock tree binding:
This binding uses the common clock binding[1].
To be able to integrate the ATL clocks with DT clock tree.
Provides ccf level representation of the ATL clocks to be used by drivers.
Since the clock instances are part of a single IP this binding is used as a node
for the DT clock tree, the IP driver is needed to handle the actual configuration
of the IP.

[1] Documentation/devicetree/bindings/clock/clock-bindings.txt

Required properties:
- compatible : shall be "ti,dra7-atl-clock"
- #clock-cells : from common clock binding; shall be set to 0.
- clocks : link phandles to functional clock of ATL

Binding for the IP driver:
This binding is used to configure the IP driver which is going to handle the
configuration of the IP for the ATL clock instances.

Required properties:
- compatible : shall be "ti,dra7-atl"
- reg : base address for the ATL IP
- ti,provided-clocks : List of phandles to the clocks associated with the ATL
- clocks : link phandles to functional clock of ATL
- clock-names : Shall be set to "fck"
- ti,hwmods : Shall be set to "atl"

Optional properties:
Configuration of ATL instances:
- atl{0/1/2/3} {
	- bws : Baseband word select signal selection
	- aws : Audio word select signal selection
};

For valid word select signals, see the dt-bindings/clk/ti-dra7-atl.h include
file.

Examples:
/* clock bindings for atl provided clocks */
atl_clkin0_ck: atl_clkin0_ck {
	#clock-cells = <0>;
	compatible = "ti,dra7-atl-clock";
	clocks = <&atl_gfclk_mux>;
};

atl_clkin1_ck: atl_clkin1_ck {
	#clock-cells = <0>;
	compatible = "ti,dra7-atl-clock";
	clocks = <&atl_gfclk_mux>;
};

atl_clkin2_ck: atl_clkin2_ck {
	#clock-cells = <0>;
	compatible = "ti,dra7-atl-clock";
	clocks = <&atl_gfclk_mux>;
};

atl_clkin3_ck: atl_clkin3_ck {
	#clock-cells = <0>;
	compatible = "ti,dra7-atl-clock";
	clocks = <&atl_gfclk_mux>;
};

/* binding for the IP */
atl: atl@4843c000 {
	compatible = "ti,dra7-atl";
	reg = <0x4843c000 0x3ff>;
	ti,hwmods = "atl";
	ti,provided-clocks = <&atl_clkin0_ck>, <&atl_clkin1_ck>,
				<&atl_clkin2_ck>, <&atl_clkin3_ck>;
	clocks = <&atl_gfclk_mux>;
	clock-names = "fck";
	status = "disabled";
};

#include <dt-bindings/clk/ti-dra7-atl.h>

&atl {
	status = "okay";

	atl2 {
		bws = <DRA7_ATL_WS_MCASP2_FSX>;
		aws = <DRA7_ATL_WS_MCASP3_FSX>;
	};
};
+25 −4
Original line number Diff line number Diff line
@@ -25,6 +25,11 @@ Required properties:
			  to map clockdomains properly
  "ti,hsdiv-gate-clock" - gate clock with OMAP36xx specific hardware handling,
			  required for a hardware errata
  "ti,composite-gate-clock" - composite gate clock, to be part of composite
			      clock
  "ti,composite-no-wait-gate-clock" - composite gate clock that does not wait
				      for clock to be active before returning
				      from clk_enable()
- #clock-cells : from common clock binding; shall be set to 0
- clocks : link to phandle of parent clock
- reg : offset for register controlling adjustable gate, not needed for
@@ -41,7 +46,7 @@ Examples:
		#clock-cells = <0>;
		compatible = "ti,gate-clock";
		clocks = <&core_96m_fck>;
		reg = <0x48004a00 0x4>;
		reg = <0x0a00>;
		ti,bit-shift = <25>;
	};

@@ -57,7 +62,7 @@ Examples:
		#clock-cells = <0>;
		compatible = "ti,dss-gate-clock";
		clocks = <&dpll4_m4x2_ck>;
		reg = <0x48004e00 0x4>;
		reg = <0x0e00>;
		ti,bit-shift = <0>;
	};

@@ -65,7 +70,7 @@ Examples:
		#clock-cells = <0>;
		compatible = "ti,am35xx-gate-clock";
		clocks = <&ipss_ick>;
		reg = <0x4800259c 0x4>;
		reg = <0x059c>;
		ti,bit-shift = <1>;
	};

@@ -80,6 +85,22 @@ Examples:
		compatible = "ti,hsdiv-gate-clock";
		clocks = <&dpll4_m2x2_mul_ck>;
		ti,bit-shift = <0x1b>;
		reg = <0x48004d00 0x4>;
		reg = <0x0d00>;
		ti,set-bit-to-disable;
	};

	vlynq_gate_fck: vlynq_gate_fck {
		#clock-cells = <0>;
		compatible = "ti,composite-gate-clock";
		clocks = <&core_ck>;
		ti,bit-shift = <3>;
		reg = <0x0200>;
	};

	sys_clkout2_src_gate: sys_clkout2_src_gate {
		#clock-cells = <0>;
		compatible = "ti,composite-no-wait-gate-clock";
		clocks = <&core_ck>;
		ti,bit-shift = <15>;
		reg = <0x0070>;
	};
+2 −0
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@@ -21,6 +21,8 @@ Required properties:
  "ti,omap3-dss-interface-clock" - interface clock with DSS specific HW handling
  "ti,omap3-ssi-interface-clock" - interface clock with SSI specific HW handling
  "ti,am35xx-interface-clock" - interface clock with AM35xx specific HW handling
  "ti,omap2430-interface-clock" - interface clock with OMAP2430 specific HW
				  handling
- #clock-cells : from common clock binding; shall be set to 0
- clocks : link to phandle of parent clock
- reg : base address for the control register
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