diff options
Diffstat (limited to 'debian/patches-rt/0005-ARM-at91-Implement-clocksource-selection.patch')
| -rw-r--r-- | debian/patches-rt/0005-ARM-at91-Implement-clocksource-selection.patch | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/debian/patches-rt/0005-ARM-at91-Implement-clocksource-selection.patch b/debian/patches-rt/0005-ARM-at91-Implement-clocksource-selection.patch new file mode 100644 index 000000000..561c3c162 --- /dev/null +++ b/debian/patches-rt/0005-ARM-at91-Implement-clocksource-selection.patch @@ -0,0 +1,55 @@ +From 4071bcd6aab6d507cb20f20cfc9f111cfa5a406f Mon Sep 17 00:00:00 2001 +From: Alexandre Belloni <alexandre.belloni@bootlin.com> +Date: Thu, 13 Sep 2018 13:30:22 +0200 +Subject: [PATCH 005/347] ARM: at91: Implement clocksource selection +Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.246-rt110.tar.xz + +Allow selecting and unselecting the PIT clocksource driver so it doesn't +have to be compile when unused. + +Tested-by: Alexander Dahl <ada@thorsis.com> +Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> +Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> +--- + arch/arm/mach-at91/Kconfig | 25 +++++++++++++++++++++++++ + 1 file changed, 25 insertions(+) + +diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig +index 903f23c309df..fa493a86e2bb 100644 +--- a/arch/arm/mach-at91/Kconfig ++++ b/arch/arm/mach-at91/Kconfig +@@ -107,6 +107,31 @@ config SOC_AT91SAM9 + AT91SAM9X35 + AT91SAM9XE + ++comment "Clocksource driver selection" ++ ++config ATMEL_CLOCKSOURCE_PIT ++ bool "Periodic Interval Timer (PIT) support" ++ depends on SOC_AT91SAM9 || SOC_SAMA5 ++ default SOC_AT91SAM9 || SOC_SAMA5 ++ select ATMEL_PIT ++ help ++ Select this to get a clocksource based on the Atmel Periodic Interval ++ Timer. It has a relatively low resolution and the TC Block clocksource ++ should be preferred. ++ ++config ATMEL_CLOCKSOURCE_TCB ++ bool "Timer Counter Blocks (TCB) support" ++ depends on SOC_AT91RM9200 || SOC_AT91SAM9 || SOC_SAMA5 || COMPILE_TEST ++ default SOC_AT91RM9200 || SOC_AT91SAM9 || SOC_SAMA5 ++ depends on !ATMEL_TCLIB ++ select ATMEL_ARM_TCB_CLKSRC ++ help ++ Select this to get a high precision clocksource based on a ++ TC block with a 5+ MHz base clock rate. ++ On platforms with 16-bit counters, two timer channels are combined ++ to make a single 32-bit timer. ++ It can also be used as a clock event device supporting oneshot mode. ++ + config HAVE_AT91_UTMI + bool + +-- +2.36.1 + |