[coreboot-gerrit] New patch to review for coreboot: 9bb491e rk3288: switch to stopwatch API

[Patrick Georgi (pgeorgi@google.com)]

Patrick Georgi (pgeorgi at google.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/8895

-gerrit

commit 9bb491e8f05765ae23de16f168e56b0890d5b2b1
Author: Aaron Durbin <adurbin at chromium.org>
Date:   Wed Sep 24 09:53:15 2014 -0500

    rk3288: switch to stopwatch API
    
    Instead of using rela_time use the stopwatch API as the
    semantics fit perfectly with the expiration usage.
    
    BUG=None
    BRANCH=None
    TEST=None, but similar usage tested on tegra132.
    
    Change-Id: I91ef59212a2dd1b48640b1aaaab6acacf4e9b3e6
    Signed-off-by: Patrick Georgi <pgeorgi at chromium.org>
    Original-Commit-Id: b1dd8380f04641f4f73caa3441f349d9eca6be05
    Original-Change-Id: Iff3293debc2f85553c9e9b765084e5c00720012c
    Original-Signed-off-by: Aaron Durbin <adurbin at chromium.org>
    Original-Reviewed-on: https://chromium-review.googlesource.com/219713
    Original-Reviewed-by: Julius Werner <jwerner at chromium.org>
    Original-Reviewed-by: Furquan Shaikh <furquan at chromium.org>
---
 src/soc/rockchip/rk3288/spi.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/src/soc/rockchip/rk3288/spi.c b/src/soc/rockchip/rk3288/spi.c
index 396f537..844d692 100644
--- a/src/soc/rockchip/rk3288/spi.c
+++ b/src/soc/rockchip/rk3288/spi.c
@@ -167,14 +167,13 @@ void spi_release_bus(struct spi_slave *slave)
 
 static int rockchip_spi_wait_till_not_busy(struct rockchip_spi *regs)
 {
-	struct mono_time start;
-	struct rela_time rt;
-	timer_monotonic_get(&start);
+	struct stopwatch sw;
+
+	stopwatch_init_usecs_expire(&sw, SPI_TIMEOUT_US);
 	do {
 		if (!(readl(&regs->sr) & SR_BUSY))
 			return 0;
-		rt = current_time_from(&start);
-	} while (rela_time_in_microseconds(&rt) < SPI_TIMEOUT_US);
+	} while (!stopwatch_expired(&sw));
 	printk(BIOS_DEBUG,
 	       "RK SPI: Status keeps busy for 1000us after a read/write!\n");
 	return -1;