User:Knuxify/Draft:Qualcomm/Adding a new SoC to mainline Linux: Difference between revisions
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* The '''codenames''' of the SoC. Qualcomm SoCs appear to have two codenames<ref>The names of these codenames have been sourced from [https://wiki.postmarketos.org/wiki/Qualcomm_Snapdragon_8_Gen_1/8%2B_Gen_1/7%2B_Gen_2_(SM8450/SM8475/SM7475) the postmarketOS wiki page for the Snapdragon 8 Gen 1, not sure where that is sourced from.</ref>: | * The '''codenames''' of the SoC. Qualcomm SoCs appear to have two codenames<ref>The names of these codenames have been sourced from [https://wiki.postmarketos.org/wiki/Qualcomm_Snapdragon_8_Gen_1/8%2B_Gen_1/7%2B_Gen_2_(SM8450/SM8475/SM7475) the postmarketOS wiki page for the Snapdragon 8 Gen 1, not sure where that is sourced from.</ref>: | ||
** ''Board codename'' ("DTS nickname"?) - you'll find it in the driver names on the device, as well as in the main compatible string of the devicetree. This is what's used across most of the downstream kernel. | ** '''Board codename''' ("DTS nickname"?) - you'll find it in the driver names on the device, as well as in the main compatible string of the devicetree. This is what's used across most of the downstream kernel. | ||
** ''Platform codename'' | ** '''Platform codename''' - presumably shared between multiple SoCs from the same family. | ||
** Since SM7635 ("Volcano"/"Milos"), Qualcomm has changed their policy around driver/compatible naming in mainline and now expects developers to use the platform codename instead<ref>https://lore.kernel.org/lkml/[email protected]/</ref>. If you're unsure of the platform codename for your device, you can send the Qualcomm folks an email and ask them directly<ref>I ended up getting [https://lore.kernel.org/lkml/[email protected]/ a public reply to my query for SM7435].</ref>, or just use the model name for now and let them correct you (as was done in the Milos case). | ** Since SM7635 ("Volcano"/"Milos"), Qualcomm has changed their policy around driver/compatible naming in mainline and now expects developers to use the platform codename instead<ref>https://lore.kernel.org/lkml/[email protected]/</ref>. If you're unsure of the platform codename for your device, you can send the Qualcomm folks an email and ask them directly<ref>I ended up getting [https://lore.kernel.org/lkml/[email protected]/ a public reply to my query for SM7435].</ref>, or just use the model name for now and let them correct you (as was done in the Milos case). | ||
* A copy of the '''downstream kernel'''; preferably the one for your device, but you can also use the kernel from another device with the same SoC, or - as a last resort - any kernel with the relevant SoC drivers (hint: search by downstream codename). | * A copy of the '''downstream kernel'''; preferably the one for your device, but you can also use the kernel from another device with the same SoC, or - as a last resort - any kernel with the relevant SoC drivers (hint: search by downstream codename). | ||