[PATCH 06/14] spi: dw: Log status register on timeout

Sean Anderson
2021-02-01T00:34:28Z

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

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

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;
}
}
--
2.29.2