[PATCH v1] ARM: clocksource: make ARM_GLOBAL_TIMER selectable
Grygorii Strashko
grygorii.strashko at ti.com
Tue Apr 26 08:28:52 PDT 2016
This patch intended to fix following cases:
- SoC-A has ARM GT, defines DT node for ARM GT and selects
ARM_GLOBAL_TIMER statically in Kconfig file. SoC-B has ARM GT and
defines DT node for ARM GT, but do not selects ARM_GLOBAL_TIMER
statically in Kconfig file. In case of multiplatform build ARM GT will
be implicitly enabled for SoC-B.
- There is no way to disable ARM GT without modifying Kconfig file,
once ARM_GLOBAL_TIMER is selected statically in Kconfig file.
Hence, fix above case by defining both HAVE_ARM_GLOBAL_TIMER and
ARM_GLOBAL_TIMER as recommended by 'Adding common features and make
the usage configurable' section in kconfig-language.txt. All places in
ARM folder where ARM_GLOBAL_TIMER was used now replaced on
HAVE_ARM_GLOBAL_TIMER.
Cc: Daniel Lezcano <daniel.lezcano at linaro.org>
Cc: Florian Fainelli <f.fainelli at gmail.com>
Cc: Russell King <linux at arm.linux.org.uk>
Cc: Wei Xu <xuwei5 at hisilicon.com>
Cc: Shawn Guo <shawnguo at kernel.org>
Cc: Sascha Hauer <kernel at pengutronix.de>
Cc: Srinivas Kandagatla <srinivas.kandagatla at gmail.com>
Cc: Maxime Coquelin <maxime.coquelin at st.com>
Cc: Masahiro Yamada <yamada.masahiro at socionext.com>
Cc: Liviu Dudau <liviu.dudau at arm.com>
Cc: Sudeep Holla <sudeep.holla at arm.com>
Cc: Jun Nie <jun.nie at linaro.org>
Cc: Michal Simek <michal.simek at xilinx.com>
Cc: Jesper Nilsson <jesper.nilsson at axis.com>
Cc: Lars Persson <lars.persson at axis.com>
Cc: Mike Looijmans <mike.looijmans at topic.nl>
Acked-by: Sören Brinkmann <soren.brinkmann at xilinx.com>
Acked-by: Moritz Fischer <moritz.fischer at ettus.com>
Signed-off-by: Grygorii Strashko <grygorii.strashko at ti.com>
---
Changes is v1:
- updated mach-artpec
- rebased on top of tip: timers/core
commit: 86d3473 time: Introduce do_sys_settimeofday64()
arch/arm/mach-artpec/Kconfig | 2 +-
arch/arm/mach-bcm/Kconfig | 4 ++--
arch/arm/mach-hisi/Kconfig | 2 +-
arch/arm/mach-imx/Kconfig | 2 +-
arch/arm/mach-rockchip/Kconfig | 2 +-
arch/arm/mach-sti/Kconfig | 2 +-
arch/arm/mach-uniphier/Kconfig | 2 +-
arch/arm/mach-vexpress/Kconfig | 2 +-
arch/arm/mach-zx/Kconfig | 2 +-
arch/arm/mach-zynq/Kconfig | 2 +-
drivers/clocksource/Kconfig | 7 ++++++-
11 files changed, 17 insertions(+), 12 deletions(-)
diff --git a/arch/arm/mach-artpec/Kconfig b/arch/arm/mach-artpec/Kconfig
index 6cbe5a2..6cbca77 100644
--- a/arch/arm/mach-artpec/Kconfig
+++ b/arch/arm/mach-artpec/Kconfig
@@ -9,7 +9,7 @@ config MACH_ARTPEC6
depends on ARCH_MULTI_V7
select ARM_AMBA
select ARM_GIC
- select ARM_GLOBAL_TIMER
+ select HAVE_ARM_GLOBAL_TIMER
select ARM_PSCI
select HAVE_ARM_ARCH_TIMER
select HAVE_ARM_SCU
diff --git a/arch/arm/mach-bcm/Kconfig b/arch/arm/mach-bcm/Kconfig
index 7ef1214..d4d079a7 100644
--- a/arch/arm/mach-bcm/Kconfig
+++ b/arch/arm/mach-bcm/Kconfig
@@ -14,7 +14,7 @@ config ARCH_BCM_IPROC
select CACHE_L2X0
select HAVE_ARM_SCU if SMP
select HAVE_ARM_TWD if SMP
- select ARM_GLOBAL_TIMER
+ select HAVE_ARM_GLOBAL_TIMER
select COMMON_CLK_IPROC
select CLKSRC_MMIO
select ARCH_REQUIRE_GPIOLIB
@@ -156,7 +156,7 @@ config ARCH_BCM_63XX
select ARM_ERRATA_754322
select ARM_ERRATA_764369 if SMP
select ARM_GIC
- select ARM_GLOBAL_TIMER
+ select HAVE_ARM_GLOBAL_TIMER
select CACHE_L2X0
select HAVE_ARM_ARCH_TIMER
select HAVE_ARM_TWD if SMP
diff --git a/arch/arm/mach-hisi/Kconfig b/arch/arm/mach-hisi/Kconfig
index a3b091a..251bb03 100644
--- a/arch/arm/mach-hisi/Kconfig
+++ b/arch/arm/mach-hisi/Kconfig
@@ -28,7 +28,7 @@ config ARCH_HIP01
depends on ARCH_MULTI_V7
select HAVE_ARM_SCU if SMP
select HAVE_ARM_TWD if SMP
- select ARM_GLOBAL_TIMER
+ select HAVE_ARM_GLOBAL_TIMER
help
Support for Hisilicon HIP01 SoC family
diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index 8973fae..3fbf38c 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -602,7 +602,7 @@ choice
config VF_USE_ARM_GLOBAL_TIMER
bool "Use ARM Global Timer"
depends on ARCH_MULTI_V7
- select ARM_GLOBAL_TIMER
+ select HAVE_ARM_GLOBAL_TIMER
select CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK
help
Use the ARM Global Timer as clocksource
diff --git a/arch/arm/mach-rockchip/Kconfig b/arch/arm/mach-rockchip/Kconfig
index cef42fd..a53b787 100644
--- a/arch/arm/mach-rockchip/Kconfig
+++ b/arch/arm/mach-rockchip/Kconfig
@@ -14,7 +14,7 @@ config ARCH_ROCKCHIP
select DW_APB_TIMER_OF
select REGULATOR if PM
select ROCKCHIP_TIMER
- select ARM_GLOBAL_TIMER
+ select HAVE_ARM_GLOBAL_TIMER
select CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK
help
Support for Rockchip's Cortex-A9 Single-to-Quad-Core-SoCs
diff --git a/arch/arm/mach-sti/Kconfig b/arch/arm/mach-sti/Kconfig
index a196d14..c799f9d 100644
--- a/arch/arm/mach-sti/Kconfig
+++ b/arch/arm/mach-sti/Kconfig
@@ -3,7 +3,7 @@ menuconfig ARCH_STI
depends on ARCH_MULTI_V7
select ARM_GIC
select ST_IRQCHIP
- select ARM_GLOBAL_TIMER
+ select HAVE_ARM_GLOBAL_TIMER
select CLKSRC_ST_LPC
select PINCTRL
select PINCTRL_ST
diff --git a/arch/arm/mach-uniphier/Kconfig b/arch/arm/mach-uniphier/Kconfig
index 82dddee..81bdf77 100644
--- a/arch/arm/mach-uniphier/Kconfig
+++ b/arch/arm/mach-uniphier/Kconfig
@@ -2,7 +2,7 @@ config ARCH_UNIPHIER
bool "Socionext UniPhier SoCs"
depends on ARCH_MULTI_V7
select ARM_AMBA
- select ARM_GLOBAL_TIMER
+ select HAVE_ARM_GLOBAL_TIMER
select ARM_GIC
select HAVE_ARM_SCU
select HAVE_ARM_TWD if SMP
diff --git a/arch/arm/mach-vexpress/Kconfig b/arch/arm/mach-vexpress/Kconfig
index 398a297..e89941d 100644
--- a/arch/arm/mach-vexpress/Kconfig
+++ b/arch/arm/mach-vexpress/Kconfig
@@ -5,7 +5,7 @@ menuconfig ARCH_VEXPRESS
select ARCH_SUPPORTS_BIG_ENDIAN
select ARM_AMBA
select ARM_GIC
- select ARM_GLOBAL_TIMER
+ select HAVE_ARM_GLOBAL_TIMER
select ARM_TIMER_SP804
select COMMON_CLK_VERSATILE
select HAVE_ARM_SCU if SMP
diff --git a/arch/arm/mach-zx/Kconfig b/arch/arm/mach-zx/Kconfig
index 209c979..e84b0c2 100644
--- a/arch/arm/mach-zx/Kconfig
+++ b/arch/arm/mach-zx/Kconfig
@@ -11,7 +11,7 @@ if ARCH_ZX
config SOC_ZX296702
def_bool y
select ARM_GIC
- select ARM_GLOBAL_TIMER
+ select HAVE_ARM_GLOBAL_TIMER
select HAVE_ARM_SCU if SMP
select HAVE_ARM_TWD if SMP
select PM_GENERIC_DOMAINS if PM
diff --git a/arch/arm/mach-zynq/Kconfig b/arch/arm/mach-zynq/Kconfig
index fd0aeeb..3165720 100644
--- a/arch/arm/mach-zynq/Kconfig
+++ b/arch/arm/mach-zynq/Kconfig
@@ -5,7 +5,7 @@ config ARCH_ZYNQ
select ARCH_SUPPORTS_BIG_ENDIAN
select ARM_AMBA
select ARM_GIC
- select ARM_GLOBAL_TIMER if !CPU_FREQ
+ select HAVE_ARM_GLOBAL_TIMER if !CPU_FREQ
select CADENCE_TTC_TIMER
select HAVE_ARM_SCU if SMP
select HAVE_ARM_TWD if SMP
diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index c346be6..c686811 100644
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -207,9 +207,14 @@ config ARM_ARCH_TIMER_EVTSTREAM
This must be disabled for hardware validation purposes to detect any
hardware anomalies of missing events.
-config ARM_GLOBAL_TIMER
+config HAVE_ARM_GLOBAL_TIMER
bool
+
+config ARM_GLOBAL_TIMER
+ bool "Support for ARM global timer unit"
select CLKSRC_OF if OF
+ default y
+ depends on HAVE_ARM_GLOBAL_TIMER
help
This options enables support for the ARM global timer unit
--
2.8.0
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