From 62f1699feaeb18b316a0799bdced10a4f8bb5175 Mon Sep 17 00:00:00 2001
From: Li Hua Qian <huaqian.li@siemens.com>
Date: Tue, 3 Dec 2024 10:58:47 +0800
Subject: [PATCH] linux-iot2050: Make PVU only available for secureboot build

Signed-off-by: Li Hua Qian <huaqian.li@siemens.com>
---
 kas/opt/secure-boot.yml                       |  1 +
 .../linux/files/iot2050_defconfig_base        |  1 -
 recipes-kernel/linux/linux-iot2050-6.1.inc    | 26 ++++++++++++++++++-
 3 files changed, 26 insertions(+), 2 deletions(-)

diff --git a/kas/opt/secure-boot.yml b/kas/opt/secure-boot.yml
index d3327ffe7..c30f74522 100644
--- a/kas/opt/secure-boot.yml
+++ b/kas/opt/secure-boot.yml
@@ -12,6 +12,7 @@ local_conf_header:
   secureboot_override: |
     OVERRIDES .= ":uefi-stmm"
     OVERRIDES .= ":secureboot"
+    OVERRIDES .= ":pvu-dma"
   secure-boot-signer: |
     IMAGER_BUILD_DEPS += "ebg-secure-boot-signer"
     IMAGER_INSTALL += "ebg-secure-boot-signer"
diff --git a/recipes-kernel/linux/files/iot2050_defconfig_base b/recipes-kernel/linux/files/iot2050_defconfig_base
index ec1358f6a..c07b93df4 100644
--- a/recipes-kernel/linux/files/iot2050_defconfig_base
+++ b/recipes-kernel/linux/files/iot2050_defconfig_base
@@ -609,7 +609,6 @@ CONFIG_RPMSG_QCOM_GLINK_RPM=y
 CONFIG_RPMSG_VIRTIO=m
 CONFIG_TI_SCI_PM_DOMAINS=y
 CONFIG_TI_PRUSS=y
-CONFIG_TI_PVU=y
 CONFIG_EXTCON_PALMAS=m
 CONFIG_EXTCON_USB_GPIO=m
 CONFIG_MEMORY=y
diff --git a/recipes-kernel/linux/linux-iot2050-6.1.inc b/recipes-kernel/linux/linux-iot2050-6.1.inc
index 51ac9bc59..613a53a8e 100644
--- a/recipes-kernel/linux/linux-iot2050-6.1.inc
+++ b/recipes-kernel/linux/linux-iot2050-6.1.inc
@@ -17,12 +17,36 @@ def get_patches(d, patchdir):
 
     return ' '.join(['file://' + patch[len(files_dir)+1:] for patch in patches])
 
+def get_extra_configs(d):
+    import re
+    import os
+
+    overrides = d.getVar('OVERRIDES')
+    append_config = []
+
+    if re.search("pvu-dma", overrides):
+        append_config.append('CONFIG_TI_PVU=y')
+
+    if append_config:
+        append_config_file = os.path.join(d.getVar('T'), 'iot2050_append_config.cfg')
+        append_config_dir = os.path.dirname(append_config_file)
+
+        if not os.path.exists(append_config_dir):
+            return ''
+        with open(append_config_file, 'w') as f:
+            for line in append_config:
+                f.write(line + '\n')
+        return 'file://' + append_config_file
+    else:
+        return ''
+
 SRC_URI += " \
     https://cdn.kernel.org/pub/linux/kernel/projects/cip/6.1/linux-cip-${PV}.tar.xz \
     ${@get_patches(d, 'patches-6.1')} \
     file://patches-6.1/ \
     file://${KERNEL_DEFCONFIG} \
-    file://iot2050_defconfig_extra.cfg"
+    file://iot2050_defconfig_extra.cfg \
+    ${@get_extra_configs(d)} "
 
 S = "${WORKDIR}/linux-cip-${PV}"