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authorLinus Torvalds <torvalds@linux-foundation.org>2020-08-05 04:17:37 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2020-08-05 04:17:37 +0300
commit442489c219235991de86d0277b5d859ede6d8792 (patch)
treeb7c57993bd45f25deb4923462efee84090996466 /Documentation/devicetree/bindings/mfd
parentf8b036a7fc231fe6e8297daddee5dffdbbf2581f (diff)
parent31cd0e119d50cf27ebe214d1a8f7ca36692f13a5 (diff)
downloadlinux-442489c219235991de86d0277b5d859ede6d8792.tar.xz
Merge tag 'timers-core-2020-08-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer updates from Thomas Gleixner: "Time, timers and related driver updates: - Prevent unnecessary timer softirq invocations by extending the tracking of the next expiring timer in the timer wheel beyond the existing NOHZ functionality. The tracking overhead at enqueue time is within the noise, but on sensitive workloads the avoidance of the soft interrupt invocation is a measurable improvement. - The obligatory new clocksource driver for Ingenic X100 OST - The usual fixes, improvements, cleanups and extensions for newer chip variants all over the driver space" * tag 'timers-core-2020-08-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (28 commits) timers: Recalculate next timer interrupt only when necessary clocksource/drivers/ingenic: Add support for the Ingenic X1000 OST. dt-bindings: timer: Add Ingenic X1000 OST bindings. clocksource/drivers: Replace HTTP links with HTTPS ones clocksource/drivers/nomadik-mtu: Handle 32kHz clock clocksource/drivers/sh_cmt: Use "kHz" for kilohertz clocksource/drivers/imx: Add support for i.MX TPM driver with ARM64 clocksource/drivers/ingenic: Add high resolution timer support for SMP/SMT. timers: Lower base clock forwarding threshold timers: Remove must_forward_clk timers: Spare timer softirq until next expiry timers: Expand clk forward logic beyond nohz timers: Reuse next expiry cache after nohz exit timers: Always keep track of next expiry timers: Optimize _next_timer_interrupt() level iteration timers: Add comments about calc_index() ceiling work timers: Move trigger_dyntick_cpu() to enqueue_timer() timers: Use only bucket expiry for base->next_expiry value timers: Preserve higher bits of expiration on index calculation clocksource/drivers/timer-atmel-tcb: Add sama5d2 support ...
Diffstat (limited to 'Documentation/devicetree/bindings/mfd')
-rw-r--r--Documentation/devicetree/bindings/mfd/atmel-tcb.txt56
1 files changed, 0 insertions, 56 deletions
diff --git a/Documentation/devicetree/bindings/mfd/atmel-tcb.txt b/Documentation/devicetree/bindings/mfd/atmel-tcb.txt
deleted file mode 100644
index c4a83e364cb6..000000000000
--- a/Documentation/devicetree/bindings/mfd/atmel-tcb.txt
+++ /dev/null
@@ -1,56 +0,0 @@
-* Device tree bindings for Atmel Timer Counter Blocks
-- compatible: Should be "atmel,<chip>-tcb", "simple-mfd", "syscon".
- <chip> can be "at91rm9200" or "at91sam9x5"
-- reg: Should contain registers location and length
-- #address-cells: has to be 1
-- #size-cells: has to be 0
-- interrupts: Should contain all interrupts for the TC block
- Note that you can specify several interrupt cells if the TC
- block has one interrupt per channel.
-- clock-names: tuple listing input clock names.
- Required elements: "t0_clk", "slow_clk"
- Optional elements: "t1_clk", "t2_clk"
-- clocks: phandles to input clocks.
-
-The TCB can expose multiple subdevices:
- * a timer
- - compatible: Should be "atmel,tcb-timer"
- - reg: Should contain the TCB channels to be used. If the
- counter width is 16 bits (at91rm9200-tcb), two consecutive
- channels are needed. Else, only one channel will be used.
-
-Examples:
-
-One interrupt per TC block:
- tcb0: timer@fff7c000 {
- compatible = "atmel,at91rm9200-tcb", "simple-mfd", "syscon";
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <0xfff7c000 0x100>;
- interrupts = <18 4>;
- clocks = <&tcb0_clk>, <&clk32k>;
- clock-names = "t0_clk", "slow_clk";
-
- timer@0 {
- compatible = "atmel,tcb-timer";
- reg = <0>, <1>;
- };
-
- timer@2 {
- compatible = "atmel,tcb-timer";
- reg = <2>;
- };
- };
-
-One interrupt per TC channel in a TC block:
- tcb1: timer@fffdc000 {
- compatible = "atmel,at91rm9200-tcb", "simple-mfd", "syscon";
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <0xfffdc000 0x100>;
- interrupts = <26 4>, <27 4>, <28 4>;
- clocks = <&tcb1_clk>, <&clk32k>;
- clock-names = "t0_clk", "slow_clk";
- };
-
-