diff options
| author |   Qipan Li <Qipan.Li@csr.com> | 2015-05-26 05:21:01 +0000 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2015-05-26 11:38:46 +0100 |
| commit | 3aa7b1d66f99855e70491136002ca92c819debd8 (patch) | |
| tree | 4ccdb54891cebc8b6bcb7fa4381e1a4ac0bb1c78 /drivers/spi | |
| parent | spi: sirf: add support for USP-based SPI (diff) | |
| download | linux-dev-3aa7b1d66f99855e70491136002ca92c819debd8.tar.xz linux-dev-3aa7b1d66f99855e70491136002ca92c819debd8.zip | |
spi: sirf: remove the allocation of dummypage
this job has been done by spi core.
Signed-off-by: Qipan Li <Qipan.Li@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/spi-sirf.c | 12 |
1 files changed, 3 insertions, 9 deletions
diff --git a/drivers/spi/spi-sirf.c b/drivers/spi/spi-sirf.c index dd87ba6fddab..f9b864fb3cee 100644 --- a/drivers/spi/spi-sirf.c +++ b/drivers/spi/spi-sirf.c @@ -303,7 +303,6 @@ struct sirfsoc_spi { struct dma_chan *tx_chan; dma_addr_t src_start; dma_addr_t dst_start; - void *dummypage; int word_width; /* in bytes */ /* @@ -719,8 +718,8 @@ static int spi_sirfsoc_transfer(struct spi_device *spi, struct spi_transfer *t) struct sirfsoc_spi *sspi; sspi = spi_master_get_devdata(spi->master); - sspi->tx = t->tx_buf ? t->tx_buf : sspi->dummypage; - sspi->rx = t->rx_buf ? t->rx_buf : sspi->dummypage; + sspi->tx = t->tx_buf; + sspi->rx = t->rx_buf; sspi->left_tx_word = sspi->left_rx_word = t->len / sspi->word_width; reinit_completion(&sspi->rx_done); reinit_completion(&sspi->tx_done); @@ -1114,6 +1113,7 @@ static int spi_sirfsoc_probe(struct platform_device *pdev) master->bits_per_word_mask = SPI_BPW_MASK(8) | SPI_BPW_MASK(12) | SPI_BPW_MASK(16) | SPI_BPW_MASK(32); master->max_speed_hz = SIRFSOC_SPI_DEFAULT_FRQ; + master->flags = SPI_MASTER_MUST_RX | SPI_MASTER_MUST_TX; sspi->bitbang.master->dev.of_node = pdev->dev.of_node; /* request DMA channels */ @@ -1141,12 +1141,6 @@ static int spi_sirfsoc_probe(struct platform_device *pdev) init_completion(&sspi->rx_done); init_completion(&sspi->tx_done); - sspi->dummypage = devm_kzalloc(&pdev->dev, 2 * PAGE_SIZE, GFP_KERNEL); - if (!sspi->dummypage) { - ret = -ENOMEM; - goto free_clk; - } - ret = spi_bitbang_start(&sspi->bitbang); if (ret) goto free_clk; |