[openwrt/openwrt] mvebu: enable tickless idle

[LEDE Commits]

robimarko pushed a commit to openwrt/openwrt.git, branch main:
https://git.openwrt.org/c13f299918702799e883fc330521bed4b7da0bd3

commit c13f299918702799e883fc330521bed4b7da0bd3
Author: Qingfang Deng <dqfext at gmail.com>
AuthorDate: Fri Dec 12 10:53:11 2025 +0800

    mvebu: enable tickless idle
    
    Switch to NO_HZ_IDLE for energy saving. Also enable Menu cpuidle
    governor for tickless systems.
    
    Run-tested: Linksys WRT1900AC v2
    
    Signed-off-by: Qingfang Deng <dqfext at gmail.com>
    Link: https://github.com/openwrt/openwrt/pull/21136
    Signed-off-by: Robert Marko <robimarko at gmail.com>
---
 target/linux/mvebu/config-6.12 | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/target/linux/mvebu/config-6.12 b/target/linux/mvebu/config-6.12
index 62bdda2734..ef1c628abc 100644
--- a/target/linux/mvebu/config-6.12
+++ b/target/linux/mvebu/config-6.12
@@ -88,7 +88,7 @@ CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
 CONFIG_CPU_FREQ_STAT=y
 CONFIG_CPU_HAS_ASID=y
 CONFIG_CPU_IDLE=y
-CONFIG_CPU_IDLE_GOV_LADDER=y
+CONFIG_CPU_IDLE_GOV_MENU=y
 CONFIG_CPU_MITIGATIONS=y
 CONFIG_CPU_PABRT_V7=y
 CONFIG_CPU_PJ4B=y
@@ -213,7 +213,6 @@ CONFIG_HWBM=y
 CONFIG_HWMON=y
 CONFIG_HW_RANDOM=y
 CONFIG_HZ_FIXED=0
-CONFIG_HZ_PERIODIC=y
 CONFIG_I2C=y
 CONFIG_I2C_BOARDINFO=y
 CONFIG_I2C_CHARDEV=y
@@ -298,6 +297,8 @@ CONFIG_NET_SELFTESTS=y
 CONFIG_NET_XGRESS=y
 CONFIG_NLS=y
 CONFIG_NOP_USB_XCEIV=y
+CONFIG_NO_HZ_COMMON=y
+CONFIG_NO_HZ_IDLE=y
 CONFIG_NR_CPUS=4
 CONFIG_NVMEM=y
 CONFIG_NVMEM_LAYOUTS=y