[PATCH v2 03/10] spi: dw: Log status register on timeout

[Sean Anderson]

This logs the status register on timeout, so it is easier to determine the
cause of the failure.

Signed-off-by: Sean Anderson <seanga2 at gmail.com>
---

(no changes since v1)

 drivers/spi/designware_spi.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/spi/designware_spi.c b/drivers/spi/designware_spi.c
index 742121140d..519d6e32bd 100644
--- a/drivers/spi/designware_spi.c
+++ b/drivers/spi/designware_spi.c
@@ -552,6 +552,7 @@ static int dw_spi_xfer(struct udevice *dev, unsigned int bitlen,
 	if (readl_poll_timeout(priv->regs + DW_SPI_SR, val,
 			       (val & SR_TF_EMPT) && !(val & SR_BUSY),
 			       RX_TIMEOUT * 1000)) {
+		dev_dbg(bus, "timed out; sr=%x\n", dw_read(priv, DW_SPI_SR));
 		ret = -ETIMEDOUT;
 	}
 
@@ -639,6 +640,8 @@ static int dw_spi_exec_op(struct spi_slave *slave, const struct spi_mem_op *op)
 		if (readl_poll_timeout(priv->regs + DW_SPI_SR, val,
 				       (val & SR_TF_EMPT) && !(val & SR_BUSY),
 				       RX_TIMEOUT * 1000)) {
+			dev_dbg(bus, "timed out; sr=%x\n",
+				dw_read(priv, DW_SPI_SR));
 			ret = -ETIMEDOUT;
 		}
 	}
-- 
2.31.0