diff options
| author | Marek Vasut <marex@denx.de> | 2019-04-10 13:44:05 +0200 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2019-04-17 22:20:18 +0200 |
| commit | e09c1a133155724d3369e150f3ab7b63c875101c (patch) | |
| tree | 81e0d1d30128fbf2a15881d3622c8d0e25506a8d /drivers/timer | |
| parent | 2c494e62c31a34746d88511e075aa187ac3f7d10 (diff) | |
timer: dw-apb: Add missing 64bit up-conversion
The generic timer count is an incrementing 64bit value and a timer driver
must return an incrementing 64bit value. The DW APB timer only provides a
32bit timer counting down, thus the result must be inverted and converted
to a 64bit value. The current implementation is however missing the 64bit
up-conversion and this results in random timer roll-overs, which in turn
triggers random timeouts throughout the codebase.
This patch adds the missing 64bit up-conversion to fix the issue.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chin Liang See <chin.liang.see@intel.com>
Cc: Dinh Nguyen <dinguyen@kernel.org>
Cc: Ley Foon Tan <ley.foon.tan@intel.com>
Cc: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Cc: Tien Fong Chee <tien.fong.chee@intel.com>
Diffstat (limited to 'drivers/timer')
| -rw-r--r-- | drivers/timer/dw-apb-timer.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/timer/dw-apb-timer.c b/drivers/timer/dw-apb-timer.c index 085bfb02c5..cb48801af1 100644 --- a/drivers/timer/dw-apb-timer.c +++ b/drivers/timer/dw-apb-timer.c @@ -32,7 +32,7 @@ static int dw_apb_timer_get_count(struct udevice *dev, u64 *count) * requires the count to be incrementing. Invert the * result. */ - *count = ~readl(priv->regs + DW_APB_CURR_VAL); + *count = timer_conv_64(~readl(priv->regs + DW_APB_CURR_VAL)); return 0; } |