[6.17] Patches for I3C and SPD5118 support for Tegra410 DDR5 temperature monitoring#294
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nirmoy wants to merge 12 commits intoNVIDIA:24.04_linux-nvidia-6.17-nextfrom
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[6.17] Patches for I3C and SPD5118 support for Tegra410 DDR5 temperature monitoring#294nirmoy wants to merge 12 commits intoNVIDIA:24.04_linux-nvidia-6.17-nextfrom
nirmoy wants to merge 12 commits intoNVIDIA:24.04_linux-nvidia-6.17-nextfrom
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…pport SETAASA Add the 'mipi-i3c-static-method' property to specify which discovery method an I3C device supports during bus initialization. The property will be used specifically if an I3C device requires SETAASA for device discovery and address assignment. ENTDAA and SETDASA will be supported by default if this property is absent. This also removes the requirement that all I3C devices should support Dynamic Address Assignment (DAA). Hence remove statements that mentions otherwise. Signed-off-by: Akhil R <[email protected]> Signed-off-by: Nirmoy Das <[email protected]>
ACPI 6.3 specifies byte 8 of I2C Serial Bus Connection descriptor to be used for Legacy Virtual Register (LVR) data as specified in the MIPI I3C Specification for an I2C device connected to an I3C Host Controller. Update the rsconvert_info to include this field. For I2C devices on an I2C bus, this field is Reserved and unused. Signed-off-by: Akhil R <[email protected]> Signed-off-by: Nirmoy Das <[email protected]>
Replace all OF specific functions with unified device property functions as a pre-requisite to support both ACPI and device tree. Signed-off-by: Akhil R <[email protected]> Signed-off-by: Nirmoy Das <[email protected]>
Use _ADR and mipi-i3c-static-address properties to follow the MIPI I3C Discovery and Configuration Specification [1] and get the I2C device from the ACPI I2C resource descriptor. [1] https://www.mipi.org/specifications/disco Signed-off-by: Akhil R <[email protected]> Signed-off-by: Nirmoy Das <[email protected]>
Add device discovery support for SPD5118, SPD5108 and similar devices attached to DDR5 memory modules via I3C bus which uses SETAASA instead of ENTDAA. Follow the guidelines proposed by the MIPI Discovery and Configuration Specification [1] for discovering such devices. These devices differ from typical I3C devices in their initialization requirements. Unlike standard I3C devices that receive dynamic addresses through ENTDAA (Enter Dynamic Address Assignment), SPD devices require the SETAASA (Set All Addresses to Static Address) CCC command to map their static addresses to dynamic addresses. Additionally, it is not mandatory for these devices to implement standard CCC commands like GETPID, GETDCR, or BCR retrieval. [1] https://www.mipi.org/specifications/disco Signed-off-by: Akhil R <[email protected]> Signed-off-by: Nirmoy Das <[email protected]>
Devices using SETAASA for address assignment are not required to have a 48-bit PID according to the I3C specification. Allow such devices to register and use the static address where PID was required. Signed-off-by: Akhil R <[email protected]> Signed-off-by: Nirmoy Das <[email protected]>
Add SETAASA and SETHID to the supported CCC commands to support SPD devices which requires SETAASA for device enumeration. Signed-off-by: Akhil R <[email protected]> Signed-off-by: Nirmoy Das <[email protected]>
…ions for ACPI Clock and reset functions do not support ACPI based enumeration. Do not call them when using the ACPI. Also add a device property to read the clock frequency from ACPI table. Signed-off-by: Akhil R <[email protected]> Signed-off-by: Nirmoy Das <[email protected]>
Update variable names to generic names and add Tegra410 ACPI ID to support the I3C controller in Tegra410. Signed-off-by: Akhil R <[email protected]> Signed-off-by: Nirmoy Das <[email protected]>
Add support for I3C based communication to SPD5118 devices. Signed-off-by: Akhil R <[email protected]> Signed-off-by: Nirmoy Das <[email protected]>
Add I3C and SPD5118 device as module to the defconfig Signed-off-by: Akhil R <[email protected]> Signed-off-by: Nirmoy Das <[email protected]>
Signed-off-by: Nirmoy Das <[email protected]>
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Add I3C bus support, dw-i3c-master driver ACPI/Tegra410 enablement, and SPD5118 hwmon for DDR5 memory temperature monitoring
https://bugs.launchpad.net/ubuntu/+source/linux-nvidia/+bug/2139154