diff options
| -rw-r--r-- | drivers/spi/spi-sirf.c | 43 |
1 files changed, 13 insertions, 30 deletions
diff --git a/drivers/spi/spi-sirf.c b/drivers/spi/spi-sirf.c index ac2ea8a1bd6..e00b437fa2a 100644 --- a/drivers/spi/spi-sirf.c +++ b/drivers/spi/spi-sirf.c @@ -140,9 +140,6 @@ struct sirfsoc_spi { unsigned int left_tx_cnt; unsigned int left_rx_cnt; - /* tasklet to push tx msg into FIFO */ - struct tasklet_struct tasklet_tx; - int chipselect[0]; }; @@ -234,17 +231,6 @@ static void spi_sirfsoc_tx_word_u32(struct sirfsoc_spi *sspi) sspi->left_tx_cnt--; } -static void spi_sirfsoc_tasklet_tx(unsigned long arg) -{ - struct sirfsoc_spi *sspi = (struct sirfsoc_spi *)arg; - - /* Fill Tx FIFO while there are left words to be transmitted */ - while (!((readl(sspi->base + SIRFSOC_SPI_TXFIFO_STATUS) & - SIRFSOC_SPI_FIFO_FULL)) && - sspi->left_tx_cnt) - sspi->tx_word(sspi); -} - static irqreturn_t spi_sirfsoc_irq(int irq, void *dev_id) { struct sirfsoc_spi *sspi = dev_id; @@ -259,25 +245,25 @@ static irqreturn_t spi_sirfsoc_irq(int irq, void *dev_id) writel(0x0, sspi->base + SIRFSOC_SPI_INT_EN); } - if (spi_stat & SIRFSOC_SPI_FRM_END) { + if (spi_stat & (SIRFSOC_SPI_FRM_END + | SIRFSOC_SPI_RXFIFO_THD_REACH)) while (!((readl(sspi->base + SIRFSOC_SPI_RXFIFO_STATUS) & SIRFSOC_SPI_FIFO_EMPTY)) && sspi->left_rx_cnt) sspi->rx_word(sspi); - /* Received all words */ - if ((sspi->left_rx_cnt == 0) && (sspi->left_tx_cnt == 0)) { - complete(&sspi->done); - writel(0x0, sspi->base + SIRFSOC_SPI_INT_EN); - } - } - - if (spi_stat & SIRFSOC_SPI_RXFIFO_THD_REACH || - spi_stat & SIRFSOC_SPI_TXFIFO_THD_REACH || - spi_stat & SIRFSOC_SPI_RX_FIFO_FULL || - spi_stat & SIRFSOC_SPI_TXFIFO_EMPTY) - tasklet_schedule(&sspi->tasklet_tx); + if (spi_stat & (SIRFSOC_SPI_FIFO_EMPTY + | SIRFSOC_SPI_TXFIFO_THD_REACH)) + while (!((readl(sspi->base + SIRFSOC_SPI_TXFIFO_STATUS) + & SIRFSOC_SPI_FIFO_FULL)) && + sspi->left_tx_cnt) + sspi->tx_word(sspi); + /* Received all words */ + if ((sspi->left_rx_cnt == 0) && (sspi->left_tx_cnt == 0)) { + complete(&sspi->done); + writel(0x0, sspi->base + SIRFSOC_SPI_INT_EN); + } return IRQ_HANDLED; } @@ -566,9 +552,6 @@ static int spi_sirfsoc_probe(struct platform_device *pdev) init_completion(&sspi->done); - tasklet_init(&sspi->tasklet_tx, spi_sirfsoc_tasklet_tx, - (unsigned long)sspi); - writel(SIRFSOC_SPI_FIFO_RESET, sspi->base + SIRFSOC_SPI_RXFIFO_OP); writel(SIRFSOC_SPI_FIFO_RESET, sspi->base + SIRFSOC_SPI_TXFIFO_OP); writel(SIRFSOC_SPI_FIFO_START, sspi->base + SIRFSOC_SPI_RXFIFO_OP); |