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Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

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Pull clocksource updates from Ingo Molnar:
 "Misc clocksource/clockevent driver updates that came in a bit late but
  are ready for v5.2"

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  misc: atmel_tclib: Do not probe already used TCBs
  clocksource/drivers/timer-atmel-tcb: Convert tc_clksrc_suspend|resume() to static
  clocksource/drivers/tcb_clksrc: Rename the file for consistency
  clocksource/drivers/timer-atmel-pit: Rework Kconfig option
  clocksource/drivers/tcb_clksrc: Move Kconfig option
  ARM: at91: Implement clocksource selection
  clocksource/drivers/tcb_clksrc: Use tcb as sched_clock
  clocksource/drivers/tcb_clksrc: Stop depending on atmel_tclib
  ARM: at91: move SoC specific definitions to SoC folder
  clocksource/drivers/timer-milbeaut: Cleanup common register accesses
  clocksource/drivers/timer-milbeaut: Add shutdown function
  clocksource/drivers/timer-milbeaut: Fix to enable one-shot timer
  clocksource/drivers/tegra: Rework for compensation of suspend time
  clocksource/drivers/sp804: Add COMPILE_TEST to CONFIG_ARM_TIMER_SP804
  clocksource/drivers/sun4i: Add a compatible for suniv
  dt-bindings: timer: Add Allwinner suniv timer
This commit is contained in:
Linus Torvalds
2019-05-19 11:11:20 -07:00
parent d9351ea14d ea7a5f90f1
commit a13f950ef1
12 changed files with 205 additions and 139 deletions
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24
drivers/misc/Kconfig
View File

@@ -59,30 +59,6 @@ config ATMEL_TCLIB
blocks found on many Atmel processors. This facilitates using
these blocks by different drivers despite processor differences.
config ATMEL_TCB_CLKSRC
bool "TC Block Clocksource"
depends on ATMEL_TCLIB
default y
help
Select this to get a high precision clocksource based on a
TC block with a 5+ MHz base clock rate. Two timer channels
are combined to make a single 32-bit timer.
When GENERIC_CLOCKEVENTS is defined, the third timer channel
may be used as a clock event device supporting oneshot mode
(delays of up to two seconds) based on the 32 KiHz clock.
config ATMEL_TCB_CLKSRC_BLOCK
int
depends on ATMEL_TCB_CLKSRC
default 0
range 0 1
help
Some chips provide more than one TC block, so you have the
choice of which one to use for the clock framework. The other
TC can be used for other purposes, such as PWM generation and
interval timing.
config DUMMY_IRQ
tristate "Dummy IRQ handler"
default n

5
drivers/misc/atmel_tclib.c
View File

@@ -1,4 +1,3 @@
#include <linux/atmel_tc.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/init.h>
@@ -10,6 +9,7 @@
#include <linux/slab.h>
#include <linux/export.h>
#include <linux/of.h>
#include <soc/at91/atmel_tcb.h>
/*
* This is a thin library to solve the problem of how to portably allocate
@@ -111,6 +111,9 @@ static int __init tc_probe(struct platform_device *pdev)
struct resource *r;
unsigned int i;
if (of_get_child_count(pdev->dev.of_node))
return -EBUSY;
irq = platform_get_irq(pdev, 0);
if (irq < 0)
return -EINVAL;