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authorLinus Torvalds <torvalds@linux-foundation.org>2014-08-05 17:46:42 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-08-05 17:46:42 -0700
commite7fda6c4c3c1a7d6996dd75fd84670fa0b5d448f (patch)
treedaa51c16462c318b890acf7f01fba5827275dd74 /drivers/mfd
parent08d69a25714429850cf9ef71f22d8cdc9189d93f (diff)
parent953dec21aed4038464fec02f96a2f1b8701a5bce (diff)
Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer and time updates from Thomas Gleixner: "A rather large update of timers, timekeeping & co - Core timekeeping code is year-2038 safe now for 32bit machines. Now we just need to fix all in kernel users and the gazillion of user space interfaces which rely on timespec/timeval :) - Better cache layout for the timekeeping internal data structures. - Proper nanosecond based interfaces for in kernel users. - Tree wide cleanup of code which wants nanoseconds but does hoops and loops to convert back and forth from timespecs. Some of it definitely belongs into the ugly code museum. - Consolidation of the timekeeping interface zoo. - A fast NMI safe accessor to clock monotonic for tracing. This is a long standing request to support correlated user/kernel space traces. With proper NTP frequency correction it's also suitable for correlation of traces accross separate machines. - Checkpoint/restart support for timerfd. - A few NOHZ[_FULL] improvements in the [hr]timer code. - Code move from kernel to kernel/time of all time* related code. - New clocksource/event drivers from the ARM universe. I'm really impressed that despite an architected timer in the newer chips SoC manufacturers insist on inventing new and differently broken SoC specific timers. [ Ed. "Impressed"? I don't think that word means what you think it means ] - Another round of code move from arch to drivers. Looks like most of the legacy mess in ARM regarding timers is sorted out except for a few obnoxious strongholds. - The usual updates and fixlets all over the place" * 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (114 commits) timekeeping: Fixup typo in update_vsyscall_old definition clocksource: document some basic timekeeping concepts timekeeping: Use cached ntp_tick_length when accumulating error timekeeping: Rework frequency adjustments to work better w/ nohz timekeeping: Minor fixup for timespec64->timespec assignment ftrace: Provide trace clocks monotonic timekeeping: Provide fast and NMI safe access to CLOCK_MONOTONIC seqcount: Add raw_write_seqcount_latch() seqcount: Provide raw_read_seqcount() timekeeping: Use tk_read_base as argument for timekeeping_get_ns() timekeeping: Create struct tk_read_base and use it in struct timekeeper timekeeping: Restructure the timekeeper some more clocksource: Get rid of cycle_last clocksource: Move cycle_last validation to core code clocksource: Make delta calculation a function wireless: ath9k: Get rid of timespec conversions drm: vmwgfx: Use nsec based interfaces drm: i915: Use nsec based interfaces timekeeping: Provide ktime_get_raw() hangcheck-timer: Use ktime_get_ns() ...
Diffstat (limited to 'drivers/mfd')
-rw-r--r--drivers/mfd/cros_ec_spi.c8
1 files changed, 2 insertions, 6 deletions
diff --git a/drivers/mfd/cros_ec_spi.c b/drivers/mfd/cros_ec_spi.c
index 0b8d32829166..8c1c7cc373f8 100644
--- a/drivers/mfd/cros_ec_spi.c
+++ b/drivers/mfd/cros_ec_spi.c
@@ -225,7 +225,6 @@ static int cros_ec_command_spi_xfer(struct cros_ec_device *ec_dev,
u8 *ptr;
int sum;
int ret = 0, final_ret;
- struct timespec ts;
/*
* We have the shared ec_dev buffer plus we do lots of separate spi_sync
@@ -239,11 +238,9 @@ static int cros_ec_command_spi_xfer(struct cros_ec_device *ec_dev,
/* If it's too soon to do another transaction, wait */
if (ec_spi->last_transfer_ns) {
- struct timespec ts;
unsigned long delay; /* The delay completed so far */
- ktime_get_ts(&ts);
- delay = timespec_to_ns(&ts) - ec_spi->last_transfer_ns;
+ delay = ktime_get_ns() - ec_spi->last_transfer_ns;
if (delay < EC_SPI_RECOVERY_TIME_NS)
ndelay(EC_SPI_RECOVERY_TIME_NS - delay);
}
@@ -280,8 +277,7 @@ static int cros_ec_command_spi_xfer(struct cros_ec_device *ec_dev,
}
final_ret = spi_sync(ec_spi->spi, &msg);
- ktime_get_ts(&ts);
- ec_spi->last_transfer_ns = timespec_to_ns(&ts);
+ ec_spi->last_transfer_ns = ktime_get_ns();
if (!ret)
ret = final_ret;
if (ret < 0) {