[BUG] esp32s3 up_putc clears all interrupts

[yamt]

Description / Steps to reproduce the issue

esp32s3 up_putc temporarily disables interrupts.
while doing so, it clears all pending interrupts, even ones unrelated to TX.

nuttx/arch/xtensa/src/esp32s3/esp32s3_lowputc.c

Lines 828 to 830 in d41e3da

	/* Clear all ints */
	putreg32(0xffffffff, UART_INT_CLR_REG(priv->id));

it seems inappropriate to me, especially when there can be concurrent interrupt-based activities on the UART. (eg. drivers/serial.c)

On which OS does this issue occur?

[OS: Mac]

What is the version of your OS?

macOS 14.7

NuttX Version

master

Issue Architecture

[Arch: xtensa]

Issue Area

[Area: Drivers]

Verification

• I have verified before submitting the report.

[yamt]

there seems to be a few copies in the tree.

spacetanuki% git grep "Clear all ints"
arch/risc-v/src/common/espressif/esp_lowputc.c:  /* Clear all ints */
arch/risc-v/src/esp32c3-legacy/esp32c3_lowputc.c:  /* Clear all ints */
arch/xtensa/src/esp32s2/esp32s2_lowputc.c:  /* Clear all ints */
arch/xtensa/src/esp32s3/esp32s3_lowputc.c:      /* Clear all ints */
spacetanuki%