leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

dt-bindings: clock: ti: add latching support to mux and divider clocks

Browse Source 
Certain hardware configurations, like dra76x, have some of the clock
registers partitioned in a funky manner that requires the clock
control setup to be latched for PRCM to be notified of the change. This
is accomplished with a separate control bit under the register. Add
support for this clock latching support to divider and mux clocks.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Reviewed-by: Rob Herring <robh@kernel.org>
This commit is contained in:
Tero Kristo 2018-02-15 09:44:52 +02:00
parent 7928b2cbe5
commit be02637f6b
2 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
Documentation/devicetree/bindings/clock/ti/divider.txt
View File

@ -75,6 +75,9 @@ Optional properties:
- ti,invert-autoidle-bit : autoidle is enabled by setting the bit to 0,
see [2]
- ti,set-rate-parent : clk_set_rate is propagated to parent
- ti,latch-bit : latch the divider value to HW, only needed if the register
access requires this. As an example dra76x DPLL_GMAC H14 divider implements
such behavior.
Examples:
dpll_usb_m2_ck: dpll_usb_m2_ck@4a008190 {

3
Documentation/devicetree/bindings/clock/ti/mux.txt
View File

@ -48,6 +48,9 @@ Optional properties:
zero
- ti,set-rate-parent : clk_set_rate is propagated to parent clock,
not supported by the composite-mux-clock subtype
- ti,latch-bit : latch the mux value to HW, only needed if the register
access requires this. As an example, dra7x DPLL_GMAC H14 muxing
implements such behavior.
Examples: