[v2,4/4] spi: spi-geni-qcom: Print an error when we timeout setting the CS

Commit Message

Doug Anderson Dec. 16, 2020, 10:41 p.m. UTC

If we're using geni to manage the chip select line (don't do it--use a
GPIO!) and we happen to get a timeout waiting for the chip select
command to be completed, no errors are printed even though things
might not be in the best shape.  Let's add a print.

Signed-off-by: Douglas Anderson <[e-mail]>
---

Changes in v2:
- ("spi: spi-geni-qcom: Print an error when we timeout setting the CS") new for v2

 drivers/spi/spi-geni-qcom.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

Patch

diff --git a/drivers/spi/spi-geni-qcom.c b/drivers/spi/spi-geni-qcom.c
index 0e4fa52ac017..744009875762 100644
--- a/drivers/spi/spi-geni-qcom.c
+++ b/drivers/spi/spi-geni-qcom.c
@@ -220,8 +220,10 @@  static void spi_geni_set_cs(struct spi_device *slv, bool set_flag)
 	spin_unlock_irq(&mas->lock);
 
 	time_left = wait_for_completion_timeout(&mas->cs_done, HZ);
-	if (!time_left)
+	if (!time_left) {
+		dev_warn(mas->dev, "Timeout setting chip select\n");
 		handle_fifo_timeout(spi, NULL);
+	}
 
 exit:
 	pm_runtime_put(mas->dev);