From: Arnd Bergmann <arnd@xxxxxxxx>
sched_clock() is not meant to be used in portable driver code,
and assuming a particular clock frequency is not how this is
meant to be used. It also causes a build failure because of
a missing header inclusion:
drivers/scsi/ufs/ufs-mediatek.c:321:12: error: implicit declaration of function 'sched_clock' [-Werror,-Wimplicit-function-declaration]
timeout = sched_clock() + retry_ms * 1000000UL;
A better interface to use here ktime_get_mono_fast_ns(), which
works mostly like ktime_get() but is safe to use inside of a
suspend callback.
Fixes: 9561f58442e4 ("scsi: ufs: mediatek: Support vops pre suspend to disable auto-hibern8")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
drivers/scsi/ufs/ufs-mediatek.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c
index d1696db70ce8..a47241ed0a57 100644
--- a/drivers/scsi/ufs/ufs-mediatek.c
+++ b/drivers/scsi/ufs/ufs-mediatek.c
@@ -318,15 +318,15 @@ static void ufs_mtk_wait_idle_state(struct ufs_hba *hba,
u32 val, sm;
bool wait_idle;
- timeout = sched_clock() + retry_ms * 1000000UL;
-
+ /* cannot use plain ktime_get() in suspend */
+ timeout = ktime_get_mono_fast_ns() + retry_ms * 1000000UL;
/* wait a specific time after check base */
udelay(10);
wait_idle = false;
do {
- time_checked = sched_clock();
+ time_checked = ktime_get_mono_fast_ns();
ufs_mtk_dbg_sel(hba);
val = ufshcd_readl(hba, REG_UFS_PROBE);
--
2.29.2
