sw:spi: fix update spi_message->actual_length

The spi-ocore driver was not updating the actual_length field in the spi_message structure. This field could be used by SPI users to see if all bytes have been transferred. In particular we found the problem because the m25p80 driver uses the actual_length to determine if there are transmission errors (-EIO). Signed-off-by: Mamta Shukla <mamta.ramendra.shukla@cern.ch> Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

sw:spi: fix update spi_message->actual_length
The spi-ocore driver was not updating the actual_length field in the spi_message structure. This field could be used by SPI users to see if all bytes have been transferred. In particular we found the problem because the m25p80 driver uses the actual_length to determine if there are transmission errors (-EIO). Signed-off-by: Mamta Shukla <mamta.ramendra.shukla@cern.ch> Signed-off-by: Federico Vaga <federico.vaga@cern.ch>
6b23d46c · Mamta Shukla · Federico Vaga · 258eb8e0 · 6b23d46c
Commit 6b23d46c authored Sep 11, 2020 by Mamta Shukla Committed by Federico Vaga Sep 14, 2020
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spi-ocores.c software/spi-ocores/drivers/spi/spi-ocores.c +2 -1

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--- a/software/spi-ocores/drivers/spi/spi-ocores.c
+++ b/software/spi-ocores/drivers/spi/spi-ocores.c
@@ -416,8 +416,9 @@ static int spi_ocores_sw_xfer_finish(struct spi_ocores *sp)
 	sp->cur_tx_buf = NULL;
 	sp->cur_rx_buf = NULL;
 	sp->cur_len = 0;
+	sp->master->cur_msg->actual_length += sp->cur_xfer->len;

-	return 0;
+        return 0;
 }

 /**