Rename to gta2xllte (SM-T595 / SDM450) — correct LTE identity

The device is the LTE variant (SM-T595, gta2xllte, SDM450 msm-id 338),
not gta2xlwifi. Rename the dts to sdm450-samsung-gta2xllte (include
sdm450.dtsi, compatible samsung,gta2xllte / qcom,sdm450), update scripts,
README and the upstream dts. Kernel PR: msm8953-mainline/linux#254.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: m8l8th814n-eng

README.md

@@ -1,10 +1,13 @@
-# postmarketOS mainline — Samsung Galaxy Tab A 10.5 (2018, Wi-Fi)
+# postmarketOS mainline — Samsung Galaxy Tab A 10.5 (2018, LTE)
 
-Mainline port of **gta2xlwifi** (SoC Qualcomm SDM450 / MSM8953).
+Mainline port of **gta2xllte** (SM-T595), SoC Qualcomm SDM450.
 
 Base: pmOS device profile `qcom-msm8953` (systemd-edge), kernel
 `linux-postmarketos-qcom-msm8953` (msm8953-mainline/linux v7.0.9-r0), bootloader lk2nd.
 
+> The Wi-Fi-only sibling (SM-T590) is gta2xlwifi / SDA450; this port targets the
+> LTE model (SM-T595, SDM450, msm-id 338).
+
 ## Status
 
 | Feature | State |
@@ -17,16 +20,17 @@ Base: pmOS device profile `qcom-msm8953` (systemd-edge), kernel
 | Bluetooth | ✅ (WCNSS) |
 | Touch (ST FTS) | 🟡 chip responds, `stmfts` times out (`-110`, fts1ba90a) |
 | DSI panel (HX8279) | ⛔ deferred — simpledrm used instead |
-| Modem | disabled (Wi-Fi variant) |
-| Sensors, camera, audio, GPU | not started |
+| Modem | not wired up yet |
+| Sensors, camera, audio, GPU, NFC | not started (NFC: hardware has none) |
 
 ## Layout
 
 ```
 mainline-port/
-├── msm8953-samsung-gta2xlwifi.dts   # device tree (the source)
+├── sdm450-samsung-gta2xllte.dts     # device tree (the source)
 ├── apply-dts.sh                     # copy dts → kernel tree + verify (out-of-tree)
 ├── build-bootimg.sh                 # build a RAM-bootable boot.img from the kernel apk
+├── upstream/                        # clean BSD-3-Clause dts as submitted upstream
 ├── pmaports-overlay/                # kernel config changes + diff
 ├── downstream-dts/                  # downstream Android dts (hardware reference)
 ├── templates/                       # mainline msm8953 dts (daisy, mido)
@@ -39,7 +43,7 @@ The kernel tree (`~/pmos/mainline-build/linux-7.0.9-r0`) lives outside this repo
 
 ```bash
 cd mainline-port
-# edit msm8953-samsung-gta2xlwifi.dts
+# edit sdm450-samsung-gta2xllte.dts
 ./apply-dts.sh                       # into the kernel tree + verify (always run before build)
 ./build-bootimg.sh                   # dts change → images/boot.img
 # config/kernel change: rebuild the kernel first:
@@ -51,8 +55,8 @@ fastboot boot images/boot.img        # RAM boot (nothing is flashed)
 
 - **PMIC:** pm8953 only (no pmi8950/pmi8937). Do not include `pmi8950.dtsi` — the SPMI
   probe fails with -EIO and blocks everything behind it.
-- **dtb selection:** lk2nd matches `qcom,msm-id = <0x152 0x0>` + `qcom,board-id = <0x08 0x04>`.
-  Without them the downstream dtb is loaded.
+- **dtb selection:** lk2nd matches `qcom,msm-id = <338 0>` (SDM450) + `qcom,board-id = <8 4>`
+  + the `T595*` bootloader string. Without them the downstream dtb is loaded.
 - **Display:** no mainline path lights the HX8279 (the ISL98608 has no i2c driver). Use
   simpledrm on the cont_splash framebuffer at `0x90001000`, msm DSI disabled, panel rails
   always-on. Format: 1200×1920, stride 1200×3, `r8g8b8` (24bpp) — 32bpp gives a sheared image.
@@ -61,7 +65,7 @@ fastboot boot images/boot.img        # RAM boot (nothing is flashed)
   mainline stmfts driver likely does not speak.
 - **Wi-Fi/BT:** WCNSS pronto + iris `qcom,wcn3680` (not `wcn3680b` — that compatible
   doesn't exist). Needs the device NV blob at the `firmware-name` path
-  `qcom/msm8953/samsung/gta2xlwifi/WCNSS_qcom_wlan_nv.bin` (32K, from the stock
+  `qcom/sdm450/samsung/gta2xllte/WCNSS_qcom_wlan_nv.bin` (32K, from the stock
   firmware) or wcn36xx fails with -2.
 - **Root UUIDs:** root `07d2abef-9505-4fc9-a6da-b6e69594ae30`,
   boot `1298aa1d-1977-4172-a50b-d7aead5d4569` (install on `mmcblk1p47`).
@@ -74,9 +78,10 @@ fastboot boot images/boot.img        # RAM boot (nothing is flashed)
 - Touch: verify/adapt a driver for fts1ba90a.
 - DSI panel: ISL98608 i2c config, then `&mdss`/`&mdss_dsi0` instead of simpledrm.
 - Package the Wi-Fi NV firmware so it survives a reinstall.
-- GPU (Adreno 506, `a506_zap`), sensors, audio, charger.
+- Modem (LTE), GPU (Adreno 506, `a506_zap`), sensors, audio, charger.
 - Spontaneous reboots (likely watchdog).
 
 ## Upstream
 
-DTS submitted to msm8953-mainline/linux: PR #253.
+- Kernel DTS: msm8953-mainline/linux PR #254 (`sdm450-samsung-gta2xllte`).
+- lk2nd: gta2xllte already supported upstream (T595*).

mainline-port/apply-dts.sh

@@ -3,13 +3,13 @@
 # apply-dts.sh — applicera den redigerade dts:en i kärnträdet och verifiera.
 #
 # Arbetsflöde:
-#   1. redigera/spara:  mainline-port/msm8953-samsung-gta2xlwifi.dts   (DENNA är källan)
+#   1. redigera/spara:  mainline-port/sdm450-samsung-gta2xllte.dts   (DENNA är källan)
 #   2. kör:             ./apply-dts.sh
 #   3. bygg:            pmbootstrap build --src=<kärnträd> linux-postmarketos-qcom-msm8953
 #
 set -euo pipefail
 
-DTS_NAME="msm8953-samsung-gta2xlwifi"
+DTS_NAME="sdm450-samsung-gta2xllte"
 HERE="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 CANONICAL="$HERE/$DTS_NAME.dts"
 KTREE="${1:-/home/simon/pmos/mainline-build/linux-7.0.9-r0}"

mainline-port/build-bootimg.sh

@@ -15,7 +15,7 @@ set -euo pipefail
 
 HERE="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 PMOS="${PMOS:-$HOME/pmos}"
-DTS_NAME="msm8953-samsung-gta2xlwifi"
+DTS_NAME="sdm450-samsung-gta2xllte"
 OUT="$HERE/images/boot.img"
 
 # --- device-specifika värden (verifierade mot plattan) ---------------------

mainline-port/pmaports-overlay/config-postmarketos-qcom-msm8953.aarch64

@@ -1609,9 +1609,9 @@ CONFIG_NET_FLOW_LIMIT=y
 
 # CONFIG_HAMRADIO is not set
 # CONFIG_CAN is not set
-CONFIG_BT=m
+CONFIG_BT=y
 CONFIG_BT_BREDR=y
-CONFIG_BT_RFCOMM=m
+CONFIG_BT_RFCOMM=y
 CONFIG_BT_RFCOMM_TTY=y
 # CONFIG_BT_BNEP is not set
 CONFIG_BT_HIDP=m
@@ -1660,7 +1660,7 @@ CONFIG_BT_HCIUART_QCA=y
 # CONFIG_BT_ATH3K is not set
 # CONFIG_BT_MTKSDIO is not set
 # CONFIG_BT_MTKUART is not set
-CONFIG_BT_QCOMSMD=m
+CONFIG_BT_QCOMSMD=y
 # CONFIG_BT_VIRTIO is not set
 # CONFIG_BT_NXPUART is not set
 # end of Bluetooth device drivers
@@ -1670,7 +1670,7 @@ CONFIG_BT_QCOMSMD=m
 # CONFIG_MCTP is not set
 CONFIG_FIB_RULES=y
 CONFIG_WIRELESS=y
-CONFIG_CFG80211=m
+CONFIG_CFG80211=y
 # CONFIG_NL80211_TESTMODE is not set
 # CONFIG_CFG80211_DEVELOPER_WARNINGS is not set
 CONFIG_CFG80211_REQUIRE_SIGNED_REGDB=y
@@ -1679,7 +1679,7 @@ CONFIG_CFG80211_DEFAULT_PS=y
 # CONFIG_CFG80211_DEBUGFS is not set
 CONFIG_CFG80211_CRDA_SUPPORT=y
 # CONFIG_CFG80211_WEXT is not set
-CONFIG_MAC80211=m
+CONFIG_MAC80211=y
 CONFIG_MAC80211_HAS_RC=y
 CONFIG_MAC80211_RC_MINSTREL=y
 CONFIG_MAC80211_RC_DEFAULT_MINSTREL=y
@@ -1689,7 +1689,7 @@ CONFIG_MAC80211_LEDS=y
 # CONFIG_MAC80211_MESSAGE_TRACING is not set
 # CONFIG_MAC80211_DEBUG_MENU is not set
 CONFIG_MAC80211_STA_HASH_MAX_SIZE=0
-CONFIG_RFKILL=m
+CONFIG_RFKILL=y
 CONFIG_RFKILL_LEDS=y
 CONFIG_RFKILL_INPUT=y
 # CONFIG_RFKILL_GPIO is not set
@@ -2361,7 +2361,7 @@ CONFIG_ATH10K_SDIO=m
 # CONFIG_ATH10K_DEBUGFS is not set
 CONFIG_ATH10K_LEDS=y
 # CONFIG_ATH10K_TRACING is not set
-CONFIG_WCN36XX=m
+CONFIG_WCN36XX=y
 CONFIG_WCN36XX_DEBUGFS=y
 # CONFIG_ATH11K is not set
 # CONFIG_WLAN_VENDOR_ATMEL is not set
@@ -5856,14 +5856,14 @@ CONFIG_QCOM_IOMMU=y
 CONFIG_REMOTEPROC=y
 # CONFIG_REMOTEPROC_CDEV is not set
 CONFIG_QCOM_PIL_INFO=m
-CONFIG_QCOM_RPROC_COMMON=m
+CONFIG_QCOM_RPROC_COMMON=y
 CONFIG_QCOM_Q6V5_COMMON=m
 # CONFIG_QCOM_Q6V5_ADSP is not set
 CONFIG_QCOM_Q6V5_MSS=m
 CONFIG_QCOM_Q6V5_PAS=m
 # CONFIG_QCOM_Q6V5_WCSS is not set
 CONFIG_QCOM_SYSMON=m
-CONFIG_QCOM_WCNSS_PIL=m
+CONFIG_QCOM_WCNSS_PIL=y
 # end of Remoteproc drivers
 
 #
@@ -5950,7 +5950,7 @@ CONFIG_QCOM_SMSM=y
 CONFIG_QCOM_SOCINFO=m
 # CONFIG_QCOM_SPM is not set
 CONFIG_QCOM_STATS=m
-CONFIG_QCOM_WCNSS_CTRL=m
+CONFIG_QCOM_WCNSS_CTRL=y
 CONFIG_QCOM_APR=m
 # CONFIG_QCOM_ICC_BWMON is not set
 CONFIG_QCOM_PBS=m

…line-port/msm8953-samsung-gta2xlwifi.dts …inline-port/sdm450-samsung-gta2xllte.dtsmainline-port/msm8953-samsung-gta2xlwifi.dts renamed to mainline-port/sdm450-samsung-gta2xllte.dts mainline-port/msm8953-samsung-gta2xlwifi.dts renamed to mainline-port/sdm450-samsung-gta2xllte.dts

@@ -10,15 +10,15 @@
 
 /dts-v1/;
 
-#include "msm8953.dtsi"
+#include "sdm450.dtsi"
 #include "pm8953.dtsi"
 /* No pmi8950/pmi8937 on this board — gta2 pairs pm8953 only (confirmed from
  * the live downstream fdt). Including a non-existent PMIC makes the SPMI probe
  * fail (-EIO) and blocks everything behind it. */
 
 / {
-	model = "Samsung Galaxy Tab A 10.5 (2018, Wi-Fi)";
-	compatible = "samsung,gta2xlwifi", "qcom,msm8953";
+	model = "Samsung Galaxy Tab A 10.5 (2018, LTE)";
+	compatible = "samsung,gta2xllte", "qcom,sdm450";
 	chassis-type = "tablet";
 
 	/*
@@ -343,6 +343,34 @@
 	status = "disabled";
 };
 
+/*
+ * Wi-Fi + Bluetooth: WCNSS pronto + iris RF (wcn3680b, dual-band 802.11ac).
+ * Supply rails verified against the device's live downstream fdt
+ * (vddxo/vdddig 1.8V, vddrfa 1.3V, vddpa 3.3V).
+ */
+&wcnss {
+	status = "okay";
+
+	vddpx-supply = <&pm8953_l5>;
+};
+
+&wcnss_iris {
+	compatible = "qcom,wcn3680";
+
+	vddxo-supply = <&pm8953_l7>;
+	vddrfa-supply = <&pm8953_l19>;
+	vddpa-supply = <&pm8953_l9>;
+	vdddig-supply = <&pm8953_l5>;
+};
+
+&wcnss_ctrl {
+	/*
+	 * NV calibration blob is device-specific; extract from the stock
+	 * /vendor (WCNSS_qcom_wlan_nv.bin) if Wi-Fi misbehaves.
+	 */
+	firmware-name = "qcom/msm8953/samsung/gta2xlwifi/WCNSS_qcom_wlan_nv.bin";
+};
+
 /*
  * Display: simpledrm on lk2nd's continuous-splash framebuffer
  * (chosen/framebuffer@90001000). The real msm DSI display + HX8279 panel are