diff options
| author | Murat Khairulin <kmy@silab.su> | 2015-05-05 19:43:19 +0300 |
|---|---|---|
| committer | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2015-05-12 09:35:17 +0200 |
| commit | 6067e90bd06d55edbd3b1417369dda53ca11c0f0 (patch) | |
| tree | b52fc7232deb5e2b3a356b6d26875c4a96079077 /drivers | |
| parent | f1209c0da26fc54d8c567a039d7765b6ad23bd5b (diff) | |
spi:tegra: fix number of words in transfer
Calculate the number of words in a transfer properly: if there are
129-131 bytes, then number of words is more than 32, therefore the
transfer should be handled with DMA rather than FIFO.
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/spi/spi-tegra.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/spi/spi-tegra.c b/drivers/spi/spi-tegra.c index 5fca5e62706c..2fd2fd68edfe 100644 --- a/drivers/spi/spi-tegra.c +++ b/drivers/spi/spi-tegra.c @@ -381,7 +381,7 @@ static unsigned spi_tegra_calculate_curr_xfer_param( if (tspi->is_packed) { max_len = min(remain_len, tspi->max_buf_size); tspi->curr_dma_words = max_len/tspi->bytes_per_word; - total_fifo_words = max_len/4; + total_fifo_words = (max_len + 3)/4; } else { max_word = (remain_len - 1) / tspi->bytes_per_word + 1; max_word = min(max_word, tspi->max_buf_size/4); |