Some firmwares don't enable PG when wakeup from suspend, so do it in kernel. This can improve code compatibility for boot kernel. Signed-off-by: Baoqi Zhang <zhangbaoqi@xxxxxxxxxxx> Signed-off-by: Huacai Chen <chenhuacai@xxxxxxxxxxx> --- arch/loongarch/power/suspend_asm.S | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/loongarch/power/suspend_asm.S b/arch/loongarch/power/suspend_asm.S index 90da899c06a1..e2fc3b4e31f0 100644 --- a/arch/loongarch/power/suspend_asm.S +++ b/arch/loongarch/power/suspend_asm.S @@ -80,6 +80,10 @@ SYM_INNER_LABEL(loongarch_wakeup_start, SYM_L_GLOBAL) JUMP_VIRT_ADDR t0, t1 + /* Enable PG */ + li.w t0, 0xb0 # PLV=0, IE=0, PG=1 + csrwr t0, LOONGARCH_CSR_CRMD + la.pcrel t0, acpi_saved_sp ld.d sp, t0, 0 SETUP_WAKEUP -- 2.39.1
