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Update and enhance the LPM documentation - #751

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ti-scaria wants to merge 2 commits into
TexasInstruments:masterfrom
ti-scaria:lpm_update
Open

Update and enhance the LPM documentation#751
ti-scaria wants to merge 2 commits into
TexasInstruments:masterfrom
ti-scaria:lpm_update

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@ti-scaria

@ti-scaria ti-scaria commented Jul 20, 2026

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Commit 1 adds the new Low power mode in the workaround page
Commit 2 is adding documentation for s2idle method and also enhacing the current LPM docs

  • commit 2 will need to be rebased after DSS Deepsleep documentation is merged

Comment thread source/devices/AM62LX/linux/Release_Specific_Workarounds.rst Outdated
Comment thread source/devices/AM62LX/linux/Release_Specific_Workarounds.rst Outdated
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Comment thread source/devices/AM62LX/linux/Release_Specific_Workarounds.rst
@ti-scaria
ti-scaria force-pushed the lpm_update branch 2 times, most recently from a26a2b3 to 262e7a0 Compare July 21, 2026 09:54
Comment thread source/devices/AM62LX/linux/Release_Specific_Workarounds.rst Outdated
Comment thread source/devices/AM62LX/linux/Release_Specific_Workarounds.rst Outdated
Comment thread source/devices/AM62LX/linux/Release_Specific_Workarounds.rst Outdated
Comment thread source/devices/AM62LX/linux/Release_Specific_Workarounds.rst Outdated
Comment thread source/devices/AM62LX/linux/Release_Specific_Workarounds.rst Outdated
Comment thread source/devices/AM62LX/linux/Release_Specific_Workarounds.rst Outdated
StaticRocket
StaticRocket previously approved these changes Jul 24, 2026
+--------------+---------------------------+----------------------------------------------+
| Mode Value | Low Power Mode | Description |
+==============+===========================+==============================================+
| 0 | DeepSleep | Default mode. Low latency, higher power |

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The description for DeepSleep is confusing, lower latency, higher power, higher to what?
We don't typically redefine these in multiple documents. TISCI is one stop document for these values. Use something like: Use the mode value as per the low power mode that is to be entered. For more detailed explanation of these modes, refer to
TISCI_MSG_LPM_SET_DEVICE_CONSTRAINT <https://software-dl.ti.com/tisci/esd/latest/2_tisci_msgs/pm/lpm.html#supported-low-power-modes>__

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Yes, will mention this as the Default mode only. The info regarding the modes are present in the LPM document itself

Reword the documentation to be generic for changing the selected
low power mode in ATF.

Add information about the new low power mode DSS plus Deepsleep
and how it can be selected.

Signed-off-by: Scaria Kochidanadu <s-kochidanadu@ti.com>
Add the documentation for using s2idle method for selecting and
entering Low power modes.

Enhancing the documentation by distinguishing between the power-off
and suspend-to-ram LPMs available.

Signed-off-by: Scaria Kochidanadu <s-kochidanadu@ti.com>
@ti-scaria

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Rebased

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