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3c6dfce2c7
android_kernel_samsung_sm8650/arch/arm
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Doug Brown 3c6dfce2c7 ARM: mmp: fix timer_read delay 
[ Upstream commit e348b4014c31041e13ff370669ba3348c4d385e3 ]

timer_read() was using an empty 100-iteration loop to wait for the
TMR_CVWR register to capture the latest timer counter value. The delay
wasn't long enough. This resulted in CPU idle time being extremely
underreported on PXA168 with CONFIG_NO_HZ_IDLE=y.

Switch to the approach used in the vendor kernel, which implements the
capture delay by reading TMR_CVWR a few times instead.

Fixes: 49cbe78637 ("[ARM] pxa: add base support for Marvell's PXA168 processor line")
Signed-off-by: Doug Brown <doug@schmorgal.com>
Link: https://lore.kernel.org/r/20221204005117.53452-3-doug@schmorgal.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-12-31 13:31:54 +01:00
..
boot ARM: dts: turris-omnia: Add switch port 6 node 2022-12-31 13:31:53 +01:00
common ARM/dma-mapping: remove dmabounce 2022-07-07 18:18:56 +02:00
configs - Yu Zhao's Multi-Gen LRU patches are here. They've been under test in 2022-10-10 17:53:04 -07:00
crypto crypto: Kconfig - simplify cipher entries 2022-08-26 18:50:43 +08:00
include ARM fixes for 6.1 2022-11-24 11:10:51 -08:00
kernel Random number generator fixes for Linux 6.1-rc1. 2022-10-16 15:27:07 -07:00
lib ARM: 9233/1: stacktrace: Skip frame pointer boundary check for call_with_stack() 2022-10-04 11:09:47 +01:00
mach-actions
mach-airoha
mach-alpine
mach-artpec
mach-asm9260
mach-aspeed ARM: aspeed: Kconfig: Fix indentation 2022-09-28 22:33:55 +02:00
mach-at91 ARM: at91: fix build for SAMA5D3 w/o L2 cache 2022-11-24 12:50:07 +02:00
mach-axxia
mach-bcm SPDX changes for 6.0-rc1 2022-08-04 12:12:54 -07:00
mach-berlin
mach-clps711x
mach-cns3xxx ARM: cns3xxx: add CONFIG_UNUSED_BOARD_FILES dependency 2022-07-22 14:18:52 +02:00
mach-davinci ARM: SoC code changes for 6.1 2022-10-06 11:22:25 -07:00
mach-digicolor
mach-dove ARM: make ARCH_MULTIPLATFORM user-visible 2022-08-30 11:18:09 +02:00
mach-ep93xx TTY/Serial driver update for 6.1-rc1 2022-10-07 16:36:24 -07:00
mach-exynos
mach-footbridge Merge branch 'arm-multiplatform-cleanup' of https://git.kernel.org/pub/scm/linux/kernel/git/soc/soc into arm/soc 2022-09-15 22:20:59 +02:00
mach-gemini
mach-highbank ARM/dma-mapping: use dma-direct unconditionally 2022-07-07 18:18:57 +02:00
mach-hisi genirq: GENERIC_IRQ_EFFECTIVE_AFF_MASK depends on SMP 2022-07-07 09:38:04 +01:00
mach-hpe
mach-imx ARM: Kconfig: clean up platform selection 2022-08-18 16:44:59 +02:00
mach-iop32x ARM: remove obsolete Makefile.boot infrastructure 2022-08-18 16:44:59 +02:00
mach-ixp4xx ARM: ixp4xx: fix typos in comments 2022-08-29 11:06:16 +02:00
mach-keystone
mach-lpc18xx ARM: remove obsolete Makefile.boot infrastructure 2022-08-18 16:44:59 +02:00
mach-lpc32xx ARM: remove obsolete Makefile.boot infrastructure 2022-08-18 16:44:59 +02:00
mach-mediatek
mach-meson
mach-milbeaut
mach-mmp ARM: mmp: fix timer_read delay 2022-12-31 13:31:54 +01:00
mach-moxart
mach-mstar
mach-mv78xx0 ARM: make ARCH_MULTIPLATFORM user-visible 2022-08-30 11:18:09 +02:00
mach-mvebu ARM: make ARCH_MULTIPLATFORM user-visible 2022-08-30 11:18:09 +02:00
mach-mxs ARM: mxs: fix memory leak in mxs_machine_init() 2022-11-19 09:40:36 +08:00
mach-nomadik
mach-npcm
mach-nspire ARM: Kconfig: clean up platform selection 2022-08-18 16:44:59 +02:00
mach-omap1 - Core Frameworks 2022-10-07 11:24:20 -07:00
mach-omap2 SPDX changes for 6.0-rc1 2022-08-04 12:12:54 -07:00
mach-orion5x ARM: make ARCH_MULTIPLATFORM user-visible 2022-08-30 11:18:09 +02:00
mach-oxnas
mach-pxa - Core Frameworks 2022-08-06 10:25:16 -07:00
mach-qcom ARM: mach-qcom: Add support for MSM8909 2022-07-18 18:06:08 -05:00
mach-rda
mach-realtek
mach-rockchip
mach-rpc ARM: Kconfig: clean up platform selection 2022-08-18 16:44:59 +02:00
mach-s3c USB/Thunderbolt changes for 6.1-rc1 2022-10-07 16:48:26 -07:00
mach-s5pv210
mach-sa1100 ARM: Kconfig: clean up platform selection 2022-08-18 16:44:59 +02:00
mach-shmobile ARM: shmobile: Drop selecting SOC_BUS 2022-09-18 14:51:10 +02:00
mach-socfpga
mach-spear ARM: spear6xx: Staticize few definitions 2022-10-10 10:38:33 +02:00
mach-sti
mach-stm32 ARM: remove obsolete Makefile.boot infrastructure 2022-08-18 16:44:59 +02:00
mach-sunplus ARM: sunplus: fix serial console kconfig and build problems 2022-09-23 14:20:00 +02:00
mach-sunxi
mach-tegra
mach-uniphier
mach-ux500
mach-versatile TTY/Serial driver update for 6.1-rc1 2022-10-07 16:36:24 -07:00
mach-vt8500 ARM: remove obsolete Makefile.boot infrastructure 2022-08-18 16:44:59 +02:00
mach-zynq cpufreq: zynq: Fix refcount leak in zynq_get_revision 2022-06-29 14:12:08 +02:00
mm ARM fixes for 6.1 2022-12-10 10:14:52 -08:00
net
nwfpe
plat-orion ARM: orion: fix include path 2022-09-23 21:55:54 +02:00
probes ARM: 9214/1: alignment: advance IT state after emulating Thumb instruction 2022-07-06 22:44:49 +01:00
tools
vdso
vfp
xen xen: don't require virtio with grants for non-PV guests 2022-08-01 07:43:03 +02:00
Kbuild
Kconfig - Yu Zhao's Multi-Gen LRU patches are here. They've been under test in 2022-10-10 17:53:04 -07:00
Kconfig-nommu
Kconfig.assembler
Kconfig.debug ARM: make ARCH_MULTIPLATFORM user-visible 2022-08-30 11:18:09 +02:00
Makefile Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00