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spi/slave: use POLLPRI to notify TX_COMPLETE.

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Signed-off-by: huxiandong <huxiandong@xiaomi.com>
This commit is contained in:
huxiandong 2023-04-07 18:19:39 +08:00 committed by Xiang Xiao
parent d582e4d37e
commit cd5ee3fb07
1 changed files with 6 additions and 1 deletions
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7
drivers/spi/spi_slave_driver.c
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@ -707,9 +707,14 @@ static void spi_slave_notify(FAR struct spi_slave_dev_s *dev,
FAR struct spi_slave_driver_s *priv = (FAR struct spi_slave_driver_s *)dev;
int semcnt;
/* POLLOUT is used to notify the upper layer that data can be written,
* POLLPRI is used to notify the upper layer that the data written
* has been read
*/
if (state == SPISLAVE_TX_COMPLETE)
{
poll_notify(&priv->fds, 1, POLLOUT);
poll_notify(&priv->fds, 1, POLLOUT | POLLPRI);
}
else if (state == SPISLAVE_RX_COMPLETE)
{