diff options
author | Stephen Boyd <sboyd@codeaurora.org> | 2015-03-20 23:45:25 -0700 |
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committer | Srinivas Kandagatla <srinivas.kandagatla@linaro.org> | 2015-11-17 09:22:43 +0000 |
commit | 005c5260dcbd5f1384748907662b1b6191117575 (patch) | |
tree | 282073a6fd2e0c4ae9a9f9e166fb2b466535658b /Documentation | |
parent | fd50da04a7dc81a357ca1d38e7a559540700babb (diff) |
clk: qcom: Add HFPLL driver
On some devices (MSM8974 for example), the HFPLLs are
instantiated within the Krait processor subsystem as separate
register regions. Add a driver for these PLLs so that we can
provide HFPLL clocks for use by the system.
Cc: <devicetree@vger.kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/devicetree/bindings/clock/qcom,hfpll.txt | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/clock/qcom,hfpll.txt b/Documentation/devicetree/bindings/clock/qcom,hfpll.txt new file mode 100644 index 000000000000..fee92bb30344 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/qcom,hfpll.txt @@ -0,0 +1,40 @@ +High-Frequency PLL (HFPLL) + +PROPERTIES + +- compatible: + Usage: required + Value type: <string> + Definition: must be "qcom,hfpll" + +- reg: + Usage: required + Value type: <prop-encoded-array> + Definition: address and size of HPLL registers. An optional second + element specifies the address and size of the alias + register region. + +- clock-output-names: + Usage: required + Value type: <string> + Definition: Name of the PLL. Typically hfpllX where X is a CPU number + starting at 0. Otherwise hfpll_Y where Y is more specific + such as "l2". + +Example: + +1) An HFPLL for the L2 cache. + + clock-controller@f9016000 { + compatible = "qcom,hfpll"; + reg = <0xf9016000 0x30>; + clock-output-names = "hfpll_l2"; + }; + +2) An HFPLL for CPU0. This HFPLL has the alias register region. + + clock-controller@f908a000 { + compatible = "qcom,hfpll"; + reg = <0xf908a000 0x30>, <0xf900a000 0x30>; + clock-output-names = "hfpll0"; + }; |