[U-Boot] [PATCH] timer: dw-apb: Add missing 64bit up-conversion

[Marek Vasut]

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 at denx.de>
Cc: Chin Liang See <chin.liang.see at intel.com>
Cc: Dinh Nguyen <dinguyen at kernel.org>
Cc: Ley Foon Tan <ley.foon.tan at intel.com>
Cc: Simon Goldschmidt <simon.k.r.goldschmidt at gmail.com>
Cc: Tien Fong Chee <tien.fong.chee at intel.com>
---
 drivers/timer/dw-apb-timer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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;
 }
-- 
2.20.1