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timer: Return count from timer_ops.get_count

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No timer drivers return an error from get_count. Instead of possibly
returning an error, just return the count directly.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Sean Anderson 2020-10-07 14:37:44 -04:00 • committed by Tom Rini
parent aff60aba6c
commit 8af7bb914f
24 changed files with 59 additions and 97 deletions
Download patch file Download diff file Expand all files Collapse all files

21
drivers/timer/riscv_timer.c
View file

@ -16,22 +16,19 @@
#include <timer.h>
#include <asm/csr.h>
static int riscv_timer_get_count(struct udevice *dev, u64 *count)
static u64 riscv_timer_get_count(struct udevice *dev)
{
if (IS_ENABLED(CONFIG_64BIT)) {
*count = csr_read(CSR_TIME);
} else {
u32 hi, lo;
__maybe_unused u32 hi, lo;
do {
hi = csr_read(CSR_TIMEH);
lo = csr_read(CSR_TIME);
} while (hi != csr_read(CSR_TIMEH));
if (IS_ENABLED(CONFIG_64BIT))
return csr_read(CSR_TIME);
*count = ((u64)hi << 32) | lo;
}
do {
hi = csr_read(CSR_TIMEH);
lo = csr_read(CSR_TIME);
} while (hi != csr_read(CSR_TIMEH));
return 0;
return ((u64)hi << 32) | lo;
}
static int riscv_timer_probe(struct udevice *dev)