diff options
| author | Ashwini Ghuge <aghuge@nvidia.com> | 2012-06-20 14:14:28 +0530 |
|---|---|---|
| committer | Simone Willett <swillett@nvidia.com> | 2012-06-20 13:47:44 -0700 |
| commit | 4c165a4d5e76e5c111ac21c9d9506ea6d87705c9 (patch) | |
| tree | 499c4cab544bf7e5a9aa2b2181d1eb709695107c /drivers | |
| parent | b426ea53fbdd902e85eacb865d1b2912b49260fe (diff) | |
spi: tegra: Max tx words limited to max buff size
When computing required words for a transfer,
limit this to max possible size on given
sub transfer
Change-Id: Ia1a9290ae389e36ecb5a8d03be2982885a544a33
Signed-off-by: Ashwini Ghuge <aghuge@nvidia.com>
Reviewed-on: http://git-master/r/109462
Reviewed-by: Simone Willett <swillett@nvidia.com>
Tested-by: Simone Willett <swillett@nvidia.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/spi/spi-tegra.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/spi/spi-tegra.c b/drivers/spi/spi-tegra.c index 33e2004101b7..0af220c863c2 100644 --- a/drivers/spi/spi-tegra.c +++ b/drivers/spi/spi-tegra.c @@ -346,12 +346,12 @@ 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 = remain_len/4; + total_fifo_words = max_len/4; } else { max_word = (remain_len - 1) / tspi->bytes_per_word + 1; max_word = min(max_word, tspi->max_buf_size/4); tspi->curr_dma_words = max_word; - total_fifo_words = remain_len/tspi->bytes_per_word; + total_fifo_words = max_word; } return total_fifo_words; } |