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esp32s3: don't clear pending interrupts on eg. up_putc

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Fixes https://github.com/apache/nuttx/issues/14872
This commit is contained in:
YAMAMOTO Takashi
2024-11-20 17:08:18 +09:00
committed by Xiang Xiao
parent 0bba53ce12
commit 388ab6c2db
1 changed files with 10 additions and 2 deletions
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arch/xtensa/src/esp32s3/esp32s3_lowputc.c
+10 -2
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@@ -825,9 +825,17 @@ void esp32s3_lowputc_disable_all_uart_int(struct esp32s3_uart_s *priv,
putreg32(0, UART_INT_ENA_REG(priv->id));
/* Clear all ints */
/* Note: this function is used to disable interrupts temporarily,
* paired with esp32s3_lowputc_restore_all_uart_int. (eg. up_putc)
* In that case, it might not be safe to clear interrupt bits.
*/
putreg32(0xffffffff, UART_INT_CLR_REG(priv->id));
if (current_status == NULL)
{
/* Clear all ints */
putreg32(0xffffffff, UART_INT_CLR_REG(priv->id));
}
spin_unlock_irqrestore(&priv->lock, flags);
}