Commit ea9b3d7e authored Aug 27, 2020 by Chun-Hung Wu Committed by Todd Kjos Aug 28, 2020

ANDROID: GKI: enable CONFIG_MTK_TIMER



It's needed by MTK board for reasons below:
After working with built-in mtk timer(timer-mediatek) as
tick-broadcast devices for few weeks, we found some issues caused
by linux timer framework:
1. tick broadcast installed by insmod cannot switch to oneshot
   mode correctly (BUG: 161822795)
2. rcu warning will be shown if we force to re-enabled tick-broadcast
for each cpu when new tick broadcast device is added by insmod
(timer-mediatek.c in our case)

Bug: 161675989
Change-Id: If3056df11d8256f2af4a6928820faed9f690b3db
Signed-off-by: Freddy Hsin <freddy.hsin@mediatek.com>
Signed-off-by: Chun-Hung Wu <chun-hung.wu@mediatek.com>

parent e54e1cae

arch/arm64/configs/gki_defconfig

+1 −0

Original line number	Diff line number	Diff line
		@@ -439,6 +439,7 @@ CONFIG_COMMON_CLK_SCPI=y
		# CONFIG_SUNXI_CCU is not set
		CONFIG_HWSPINLOCK=y
		# CONFIG_SUN50I_ERRATUM_UNKNOWN1 is not set
		CONFIG_MTK_TIMER=y
		CONFIG_MAILBOX=y
		CONFIG_IOMMU_LIMIT_IOVA_ALIGNMENT=y
		CONFIG_REMOTEPROC=y

drivers/clocksource/Kconfig

+1 −1

Original line number	Diff line number	Diff line
		@@ -473,7 +473,7 @@ config SYS_SUPPORTS_SH_CMT
		bool

		config MTK_TIMER
		bool "Mediatek timer driver" if COMPILE_TEST
		bool "Mediatek timer driver"
		depends on HAS_IOMEM
		select TIMER_OF
		select CLKSRC_MMIO