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author | Mateusz Kulikowski <mateusz.kulikowski@gmail.com> | 2016-04-01 00:12:29 +0300 |
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committer | Tom Rini <trini@konsulko.com> | 2016-04-02 00:18:12 +0300 |
commit | 5b47271c18e107408b40198420ea484b44b927a9 (patch) | |
tree | 8430c8de28ce2485c402fdde14acd5fc5ed30f79 /doc | |
parent | d33776e43dc8471ab03920dda77b00333a8ddd3e (diff) | |
download | u-boot-5b47271c18e107408b40198420ea484b44b927a9.tar.xz |
drivers: spmi: Add support for Qualcomm SPMI bus driver
Support SPMI arbiter on Qualcomm Snapdragon devices.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'doc')
-rw-r--r-- | doc/device-tree-bindings/spmi/spmi-msm.txt | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/doc/device-tree-bindings/spmi/spmi-msm.txt b/doc/device-tree-bindings/spmi/spmi-msm.txt new file mode 100644 index 0000000000..ae47673b76 --- /dev/null +++ b/doc/device-tree-bindings/spmi/spmi-msm.txt @@ -0,0 +1,26 @@ +Qualcomm SPMI arbiter/bus driver + +This is bus driver for Qualcomm chips that use SPMI to communicate with PMICs. + +Required properties: +- compatible: "qcom,spmi-pmic-arb" +- reg: Register block adresses and sizes for various parts of device: + 1) PMIC arbiter channel mapping base (PMIC_ARB_REG_CHNLn) + 2) SPMI write command (master) registers (PMIC_ARB_CORE_SW_DEC_CHANNELS) + 3) SPMI read command (observer) registers (PMIC_ARB_CORE_REGISTERS_OBS) + +Optional properties (if not set by parent): +- #address-cells: 0x1 - childs slave ID address +- #size-cells: 0x1 + +All PMICs should be placed as a child nodes of bus arbiter. +Automatic detection of childs is currently not supported. + +Example: + +spmi@200f000 { + compatible = "qcom,spmi-pmic-arb"; + reg = <0x200f800 0x200 0x2400000 0x400000 0x2c00000 0x400000>; + #address-cells = <0x1>; + #size-cells = <0x1>; +}; |