From e09c1a133155724d3369e150f3ab7b63c875101c Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Wed, 10 Apr 2019 13:44:05 +0200 Subject: 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 Cc: Chin Liang See Cc: Dinh Nguyen Cc: Ley Foon Tan Cc: Simon Goldschmidt Cc: Tien Fong Chee --- drivers/timer/dw-apb-timer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/timer/dw-apb-timer.c b/drivers/timer/dw-apb-timer.c index 085bfb0..cb48801 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; } -- cgit v1.1