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Revert "Fix unwanted flush in the SPI slave driver"

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because if priv->rx_length is zero , need to call SPIS_CTRLR_QPOLL to
receive new data from lower half and update priv->rx_length.

This reverts commit 6cb649ecf6.
This commit is contained in:
dongjiuzhu1 2024-09-09 10:17:10 +08:00 committed by Alan C. Assis
parent 7ba125f7cd
commit 33f3c3552f
1 changed files with 1 additions and 2 deletions
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drivers/spi/spi_slave_driver.c
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@ -320,7 +320,6 @@ static ssize_t spi_slave_read(FAR struct file *filep, FAR char *buffer,
return -ENOBUFS;
}
priv->rx_length = MIN(buflen, sizeof(priv->rx_buffer));
ret = nxmutex_lock(&priv->lock);
if (ret < 0)
{
@ -692,7 +691,7 @@ static size_t spi_slave_receive(FAR struct spi_slave_dev_s *dev,
FAR const void *data, size_t len)
{
FAR struct spi_slave_driver_s *priv = (FAR struct spi_slave_driver_s *)dev;
size_t recv_bytes = MIN(len, priv->rx_length);
size_t recv_bytes = MIN(len, sizeof(priv->rx_buffer));
memcpy(priv->rx_buffer, data, recv_bytes);