Merge branch 'for-v3.16/ti-clk-drv' of github.com:t-kristo/linux-pm into clk-next
This commit is contained in:
@@ -14,18 +14,32 @@ a subtype of a DPLL [2], although a simplified one at that.
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[2] Documentation/devicetree/bindings/clock/ti/dpll.txt
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Required properties:
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- compatible : shall be "ti,dra7-apll-clock"
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- compatible : shall be "ti,dra7-apll-clock" or "ti,omap2-apll-clock"
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- #clock-cells : from common clock binding; shall be set to 0.
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- clocks : link phandles of parent clocks (clk-ref and clk-bypass)
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- reg : address and length of the register set for controlling the APLL.
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It contains the information of registers in the following order:
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"control" - contains the control register base address
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"idlest" - contains the idlest register base address
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"control" - contains the control register offset
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"idlest" - contains the idlest register offset
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"autoidle" - contains the autoidle register offset (OMAP2 only)
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- ti,clock-frequency : static clock frequency for the clock (OMAP2 only)
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- ti,idlest-shift : bit-shift for the idlest field (OMAP2 only)
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- ti,bit-shift : bit-shift for enable and autoidle fields (OMAP2 only)
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Examples:
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apll_pcie_ck: apll_pcie_ck@4a008200 {
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apll_pcie_ck: apll_pcie_ck {
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#clock-cells = <0>;
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clocks = <&apll_pcie_in_clk_mux>, <&dpll_pcie_ref_ck>;
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reg = <0x4a00821c 0x4>, <0x4a008220 0x4>;
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reg = <0x021c>, <0x0220>;
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compatible = "ti,dra7-apll-clock";
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};
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apll96_ck: apll96_ck {
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#clock-cells = <0>;
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compatible = "ti,omap2-apll-clock";
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clocks = <&sys_ck>;
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ti,bit-shift = <2>;
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ti,idlest-shift = <8>;
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ti,clock-frequency = <96000000>;
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reg = <0x0500>, <0x0530>, <0x0520>;
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};
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@@ -24,12 +24,14 @@ Required properties:
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"ti,omap4-dpll-core-clock",
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"ti,omap4-dpll-m4xen-clock",
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"ti,omap4-dpll-j-type-clock",
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"ti,omap5-mpu-dpll-clock",
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"ti,am3-dpll-no-gate-clock",
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"ti,am3-dpll-j-type-clock",
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"ti,am3-dpll-no-gate-j-type-clock",
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"ti,am3-dpll-clock",
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"ti,am3-dpll-core-clock",
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"ti,am3-dpll-x2-clock",
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"ti,omap2-dpll-core-clock",
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- #clock-cells : from common clock binding; shall be set to 0.
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- clocks : link phandles of parent clocks, first entry lists reference clock
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@@ -41,6 +43,7 @@ Required properties:
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"mult-div1" - contains the multiplier / divider register base address
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"autoidle" - contains the autoidle register base address (optional)
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ti,am3-* dpll types do not have autoidle register
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ti,omap2-* dpll type does not support idlest / autoidle registers
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Optional properties:
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- DPLL mode setting - defining any one or more of the following overrides
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@@ -73,3 +76,10 @@ Examples:
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clocks = <&sys_clkin_ck>, <&sys_clkin_ck>;
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reg = <0x90>, <0x5c>, <0x68>;
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};
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dpll_ck: dpll_ck {
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#clock-cells = <0>;
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compatible = "ti,omap2-dpll-core-clock";
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clocks = <&sys_ck>, <&sys_ck>;
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reg = <0x0500>, <0x0540>;
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};
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96
Documentation/devicetree/bindings/clock/ti/dra7-atl.txt
Normal file
96
Documentation/devicetree/bindings/clock/ti/dra7-atl.txt
Normal file
@@ -0,0 +1,96 @@
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Device Tree Clock bindings for ATL (Audio Tracking Logic) of DRA7 SoC.
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The ATL IP is used to generate clock to be used to synchronize baseband and
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audio codec. A single ATL IP provides four ATL clock instances sharing the same
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functional clock but can be configured to provide different clocks.
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ATL can maintain a clock averages to some desired frequency based on the bws/aws
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signals - can compensate the drift between the two ws signal.
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In order to provide the support for ATL and it's output clocks (which can be used
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internally within the SoC or external components) two sets of bindings is needed:
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Clock tree binding:
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This binding uses the common clock binding[1].
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To be able to integrate the ATL clocks with DT clock tree.
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Provides ccf level representation of the ATL clocks to be used by drivers.
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Since the clock instances are part of a single IP this binding is used as a node
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for the DT clock tree, the IP driver is needed to handle the actual configuration
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of the IP.
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[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
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Required properties:
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- compatible : shall be "ti,dra7-atl-clock"
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- #clock-cells : from common clock binding; shall be set to 0.
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- clocks : link phandles to functional clock of ATL
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Binding for the IP driver:
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This binding is used to configure the IP driver which is going to handle the
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configuration of the IP for the ATL clock instances.
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Required properties:
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- compatible : shall be "ti,dra7-atl"
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- reg : base address for the ATL IP
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- ti,provided-clocks : List of phandles to the clocks associated with the ATL
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- clocks : link phandles to functional clock of ATL
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- clock-names : Shall be set to "fck"
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- ti,hwmods : Shall be set to "atl"
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Optional properties:
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Configuration of ATL instances:
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- atl{0/1/2/3} {
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- bws : Baseband word select signal selection
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- aws : Audio word select signal selection
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};
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For valid word select signals, see the dt-bindings/clk/ti-dra7-atl.h include
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file.
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Examples:
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/* clock bindings for atl provided clocks */
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atl_clkin0_ck: atl_clkin0_ck {
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#clock-cells = <0>;
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compatible = "ti,dra7-atl-clock";
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clocks = <&atl_gfclk_mux>;
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};
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atl_clkin1_ck: atl_clkin1_ck {
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#clock-cells = <0>;
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compatible = "ti,dra7-atl-clock";
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clocks = <&atl_gfclk_mux>;
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};
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atl_clkin2_ck: atl_clkin2_ck {
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#clock-cells = <0>;
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compatible = "ti,dra7-atl-clock";
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clocks = <&atl_gfclk_mux>;
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};
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atl_clkin3_ck: atl_clkin3_ck {
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#clock-cells = <0>;
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compatible = "ti,dra7-atl-clock";
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clocks = <&atl_gfclk_mux>;
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};
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/* binding for the IP */
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atl: atl@4843c000 {
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compatible = "ti,dra7-atl";
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reg = <0x4843c000 0x3ff>;
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ti,hwmods = "atl";
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ti,provided-clocks = <&atl_clkin0_ck>, <&atl_clkin1_ck>,
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<&atl_clkin2_ck>, <&atl_clkin3_ck>;
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clocks = <&atl_gfclk_mux>;
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clock-names = "fck";
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status = "disabled";
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};
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#include <dt-bindings/clk/ti-dra7-atl.h>
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&atl {
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status = "okay";
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atl2 {
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bws = <DRA7_ATL_WS_MCASP2_FSX>;
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aws = <DRA7_ATL_WS_MCASP3_FSX>;
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};
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};
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@@ -25,6 +25,11 @@ Required properties:
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to map clockdomains properly
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"ti,hsdiv-gate-clock" - gate clock with OMAP36xx specific hardware handling,
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required for a hardware errata
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"ti,composite-gate-clock" - composite gate clock, to be part of composite
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clock
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"ti,composite-no-wait-gate-clock" - composite gate clock that does not wait
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for clock to be active before returning
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from clk_enable()
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- #clock-cells : from common clock binding; shall be set to 0
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- clocks : link to phandle of parent clock
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- reg : offset for register controlling adjustable gate, not needed for
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@@ -41,7 +46,7 @@ Examples:
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#clock-cells = <0>;
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compatible = "ti,gate-clock";
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clocks = <&core_96m_fck>;
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reg = <0x48004a00 0x4>;
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reg = <0x0a00>;
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ti,bit-shift = <25>;
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};
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@@ -57,7 +62,7 @@ Examples:
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#clock-cells = <0>;
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compatible = "ti,dss-gate-clock";
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clocks = <&dpll4_m4x2_ck>;
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reg = <0x48004e00 0x4>;
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reg = <0x0e00>;
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ti,bit-shift = <0>;
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};
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@@ -65,7 +70,7 @@ Examples:
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#clock-cells = <0>;
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compatible = "ti,am35xx-gate-clock";
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clocks = <&ipss_ick>;
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reg = <0x4800259c 0x4>;
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reg = <0x059c>;
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ti,bit-shift = <1>;
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};
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@@ -80,6 +85,22 @@ Examples:
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compatible = "ti,hsdiv-gate-clock";
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clocks = <&dpll4_m2x2_mul_ck>;
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ti,bit-shift = <0x1b>;
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reg = <0x48004d00 0x4>;
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reg = <0x0d00>;
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ti,set-bit-to-disable;
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};
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vlynq_gate_fck: vlynq_gate_fck {
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#clock-cells = <0>;
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compatible = "ti,composite-gate-clock";
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clocks = <&core_ck>;
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ti,bit-shift = <3>;
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reg = <0x0200>;
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};
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sys_clkout2_src_gate: sys_clkout2_src_gate {
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#clock-cells = <0>;
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compatible = "ti,composite-no-wait-gate-clock";
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clocks = <&core_ck>;
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ti,bit-shift = <15>;
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reg = <0x0070>;
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};
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@@ -21,6 +21,8 @@ Required properties:
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"ti,omap3-dss-interface-clock" - interface clock with DSS specific HW handling
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"ti,omap3-ssi-interface-clock" - interface clock with SSI specific HW handling
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"ti,am35xx-interface-clock" - interface clock with AM35xx specific HW handling
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"ti,omap2430-interface-clock" - interface clock with OMAP2430 specific HW
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handling
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- #clock-cells : from common clock binding; shall be set to 0
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- clocks : link to phandle of parent clock
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- reg : base address for the control register
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