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authorAndrew Bresticker <abrestic@chromium.org>2014-12-17 00:05:44 +0300
committerMark Brown <broonie@kernel.org>2014-12-22 20:52:07 +0300
commitc0e7dc21d33caa31296d1e4af1e99008359f1b64 (patch)
tree33501b62eb403f704e173fff2780536d81968d70 /drivers/spi
parent97bf6af1f928216fd6c5a66e8a57bfa95a659672 (diff)
downloadlinux-c0e7dc21d33caa31296d1e4af1e99008359f1b64.tar.xz
spi: img-spfi: Enable controller before starting TX DMA
It is recommended that the SPFI controller be enabled (i.e. setting SPFI_EN in SPFI_CONTROL) before TX DMA begins. Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi')
-rw-r--r--drivers/spi/spi-img-spfi.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/spi/spi-img-spfi.c b/drivers/spi/spi-img-spfi.c
index b410499cddca..cd14556852bf 100644
--- a/drivers/spi/spi-img-spfi.c
+++ b/drivers/spi/spi-img-spfi.c
@@ -390,14 +390,14 @@ static int img_spfi_start_dma(struct spi_master *master,
dma_async_issue_pending(spfi->rx_ch);
}
+ spfi_start(spfi);
+
if (xfer->tx_buf) {
spfi->tx_dma_busy = true;
dmaengine_submit(txdesc);
dma_async_issue_pending(spfi->tx_ch);
}
- spfi_start(spfi);
-
return 1;
stop_dma: