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authorNishanth Menon <nm@ti.com>2014-05-16 05:45:59 -0500
committerTero Kristo <t-kristo@ti.com>2014-06-06 20:33:39 +0300
commitb4be018921879ba7452379af8fb7320833a12bd4 (patch)
treea86e2a290ed68da325bf1f623b6b4437ca4d1771 /Documentation
parentce369a545aac3da653dd95d8117093a862bf94d3 (diff)
downloadop-kernel-dev-b4be018921879ba7452379af8fb7320833a12bd4.zip
op-kernel-dev-b4be018921879ba7452379af8fb7320833a12bd4.tar.gz
CLK: TI: dpll: support OMAP5 MPU DPLL that need special handling for higher frequencies
MPU DPLL on OMAP5, DRA75x, DRA72x has a limitation on the maximum frequency it can be locked at. Duty Cycle Correction circuit is used to recover a correct duty cycle for achieving higher frequencies (hardware internally switches output to M3 output(CLKOUTHIF) from M2 output (CLKOUT)). So provide support to setup required data to handle Duty cycle by the setting up the minimum frequency for DPLL. 1.4GHz is common for all these devices and is based on Technical Reference Manual information for OMAP5432((SWPU282U) chapter 3.6.3.3.1 "DPLLs Output Clocks Parameters", and equivalent information from DRA75x, DRA72x documentation(SPRUHP2E, SPRUHI2P). Signed-off-by: Nishanth Menon <nm@ti.com> [t-kristo@ti.com: updated for latest dpll init API call] Signed-off-by: Tero Kristo <t-kristo@ti.com>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/clock/ti/dpll.txt1
1 files changed, 1 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/clock/ti/dpll.txt b/Documentation/devicetree/bindings/clock/ti/dpll.txt
index 50a1a42..df57009 100644
--- a/Documentation/devicetree/bindings/clock/ti/dpll.txt
+++ b/Documentation/devicetree/bindings/clock/ti/dpll.txt
@@ -24,6 +24,7 @@ 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",
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