From b34bc22bd9921547246c117fb95eb58bedaceff5 Mon Sep 17 00:00:00 2001 From: Ovidiu Panait Date: Wed, 12 Oct 2022 08:36:56 +0300 Subject: [PATCH] timer: xilinx-timer: use timer_conv_64() to fix timer wrap around Current xilinx_timer_get_count() implementation does not take into account the periodic 32-bit wrap arounds, as it directly returns the 32-bit counter register value. The roll-overs cause problems in the upper timer layers, as generic timer code expects an incrementing 64-bit value from get_count() to work correctly. Add the missing 64-bit up-conversion to fix random hangs/delays in __udelay(). Fixes: a36d86720f ("microblaze: Convert axi timer to DM driver") Signed-off-by: Ovidiu Panait Reviewed-by: Michal Simek Link: https://lore.kernel.org/r/20221012053656.1492457-3-ovpanait@gmail.com Signed-off-by: Michal Simek --- drivers/timer/xilinx-timer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/timer/xilinx-timer.c b/drivers/timer/xilinx-timer.c index 75b4473b63..172fd9f929 100644 --- a/drivers/timer/xilinx-timer.c +++ b/drivers/timer/xilinx-timer.c @@ -40,7 +40,7 @@ static u64 xilinx_timer_get_count(struct udevice *dev) regmap_read(priv->regs, TIMER_COUNTER_OFFSET, &value); - return value; + return timer_conv_64(value); } static int xilinx_timer_probe(struct udevice *dev)