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-rw-r--r--drivers/spi/spi-xilinx.c16
1 files changed, 10 insertions, 6 deletions
diff --git a/drivers/spi/spi-xilinx.c b/drivers/spi/spi-xilinx.c
index 7abf6792cc11..a339c1e9997a 100644
--- a/drivers/spi/spi-xilinx.c
+++ b/drivers/spi/spi-xilinx.c
@@ -249,19 +249,23 @@ static int xilinx_spi_txrx_bufs(struct spi_device *spi, struct spi_transfer *t)
249 xspi->tx_ptr = t->tx_buf; 249 xspi->tx_ptr = t->tx_buf;
250 xspi->rx_ptr = t->rx_buf; 250 xspi->rx_ptr = t->rx_buf;
251 remaining_words = t->len / xspi->bytes_per_word; 251 remaining_words = t->len / xspi->bytes_per_word;
252 reinit_completion(&xspi->done);
253 252
254 if (xspi->irq >= 0 && remaining_words > xspi->buffer_size) { 253 if (xspi->irq >= 0 && remaining_words > xspi->buffer_size) {
254 u32 isr;
255 use_irq = true; 255 use_irq = true;
256 xspi->write_fn(XSPI_INTR_TX_EMPTY,
257 xspi->regs + XIPIF_V123B_IISR_OFFSET);
258 /* Enable the global IPIF interrupt */
259 xspi->write_fn(XIPIF_V123B_GINTR_ENABLE,
260 xspi->regs + XIPIF_V123B_DGIER_OFFSET);
261 /* Inhibit irq to avoid spurious irqs on tx_empty*/ 256 /* Inhibit irq to avoid spurious irqs on tx_empty*/
262 cr = xspi->read_fn(xspi->regs + XSPI_CR_OFFSET); 257 cr = xspi->read_fn(xspi->regs + XSPI_CR_OFFSET);
263 xspi->write_fn(cr | XSPI_CR_TRANS_INHIBIT, 258 xspi->write_fn(cr | XSPI_CR_TRANS_INHIBIT,
264 xspi->regs + XSPI_CR_OFFSET); 259 xspi->regs + XSPI_CR_OFFSET);
260 /* ACK old irqs (if any) */
261 isr = xspi->read_fn(xspi->regs + XIPIF_V123B_IISR_OFFSET);
262 if (isr)
263 xspi->write_fn(isr,
264 xspi->regs + XIPIF_V123B_IISR_OFFSET);
265 /* Enable the global IPIF interrupt */
266 xspi->write_fn(XIPIF_V123B_GINTR_ENABLE,
267 xspi->regs + XIPIF_V123B_DGIER_OFFSET);
268 reinit_completion(&xspi->done);
265 } 269 }
266 270
267 while (remaining_words) { 271 while (remaining_words) {