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watchdog: npcm: Support more timeout value

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Calculate a timeout value that is close to the requested value.

Signed-off-by: Stanley Chu <yschu@nuvoton.com>
This commit is contained in:
Stanley Chu
2025-12-16 10:47:24 +08:00
committed by Tom Rini
parent 41eddd8923
commit f74beb8dcf
1 changed files with 4 additions and 19 deletions
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23
drivers/watchdog/npcm_wdt.c
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@@ -27,26 +27,11 @@ struct npcm_wdt_priv {
static int npcm_wdt_start(struct udevice *dev, u64 timeout_ms, ulong flags)
{
struct npcm_wdt_priv *priv = dev_get_priv(dev);
u32 time_out, val;
u32 val;
time_out = (u32)(timeout_ms) / 1000;
if (time_out < 2)
val = 0x800;
else if (time_out < 3)
val = 0x420;
else if (time_out < 6)
val = 0x810;
else if (time_out < 11)
val = 0x430;
else if (time_out < 22)
val = 0x820;
else if (time_out < 44)
val = 0xc00;
else if (time_out < 87)
val = 0x830;
else if (time_out < 173)
val = 0xc10;
else if (time_out < 688)
if (timeout_ms < 343552)
val = ((timeout_ms / 1342) << 16) + 0x800;
else if (timeout_ms < 688000)
val = 0xc20;
else
val = 0xc30;