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* [PATCH] riscv: acpi: chose to boot from acpi then disable FDT
@ 2025-09-10 11:24 Han Gao
  2025-10-10  2:27 ` patchwork-bot+linux-riscv
  0 siblings, 1 reply; 2+ messages in thread
From: Han Gao @ 2025-09-10 11:24 UTC (permalink / raw)
  To: linux-riscv, Paul Walmsley, Palmer Dabbelt, Albert Ou,
	Alexandre Ghiti, Andrew Morton, Mike Rapoport (Microsoft),
	Andy Chiu, Han Gao, Guo Weikang, Kuan-Wei Chiu,
	Björn Töpel, Zixian Zeng, Usama Arif, Yong-Xuan Wang
  Cc: linux-kernel

avoid errors caused by repeated driver initialization.

commit 3505f30fb6a9 ("ARM64 / ACPI: If we chose to boot from acpi then disable FDT")

Signed-off-by: Han Gao <rabenda.cn@gmail.com>
---
 arch/riscv/kernel/setup.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/arch/riscv/kernel/setup.c b/arch/riscv/kernel/setup.c
index f90cce7a3ace..d7ee62837aa4 100644
--- a/arch/riscv/kernel/setup.c
+++ b/arch/riscv/kernel/setup.c
@@ -330,11 +330,14 @@ void __init setup_arch(char **cmdline_p)
 	/* Parse the ACPI tables for possible boot-time configuration */
 	acpi_boot_table_init();
 
+	if (acpi_disabled) {
 #if IS_ENABLED(CONFIG_BUILTIN_DTB)
-	unflatten_and_copy_device_tree();
+		unflatten_and_copy_device_tree();
 #else
-	unflatten_device_tree();
+		unflatten_device_tree();
 #endif
+	}
+
 	misc_mem_init();
 
 	init_resources();
-- 
2.47.3


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