spi: spi-fsl-espi: Log fifo counters on error

Log RX and TX fifo counters when a transfer is done and these are not
zero.

Signed-off-by: Tiago Brusamarello <tiago.brusamarello@datacom.ind.br>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/spi/spi-fsl-espi.c b/drivers/spi/spi-fsl-espi.c
index 1d332e2..1e8ff62 100644 (file)
--- a/drivers/spi/spi-fsl-espi.c
+++ b/drivers/spi/spi-fsl-espi.c
@@ -547,8 +547,11 @@ static void fsl_espi_cpu_irq(struct fsl_espi *espi, u32 events)
                dev_err(espi->dev,
                        "Transfer done but SPIE_DON isn't set!\n");
 
-       if (SPIE_RXCNT(events) || SPIE_TXCNT(events) != FSL_ESPI_FIFO_SIZE)
+       if (SPIE_RXCNT(events) || SPIE_TXCNT(events) != FSL_ESPI_FIFO_SIZE) {
                dev_err(espi->dev, "Transfer done but rx/tx fifo's aren't empty!\n");
+               dev_err(espi->dev, "SPIE_RXCNT = %d, SPIE_TXCNT = %d\n",
+                       SPIE_RXCNT(events), SPIE_TXCNT(events));
+       }
 
        complete(&espi->done);
 }