From: Qipan Li <[email protected]> this job has been done by spi core.
Cc: Geert Uytterhoeven <[email protected]> Signed-off-by: Qipan Li <[email protected]> Signed-off-by: Barry Song <[email protected]> --- drivers/spi/spi-sirf.c | 12 +++--------- 1 file changed, 3 insertions(+), 9 deletions(-) diff --git a/drivers/spi/spi-sirf.c b/drivers/spi/spi-sirf.c index dd87ba6f..f9b864f 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; -- 2.3.5 -- To unsubscribe from this list: send the line "unsubscribe linux-spi" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
