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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2016-12-08 11:52:26 +0100
committerSascha Hauer <s.hauer@pengutronix.de>2017-01-10 08:27:53 +0100
commit2862f95263d0ab82bd3aa5ecd47698e224214f96 (patch)
tree200ce65a69be2e43057e17265892b7655ce7e24d
parent72519662668775181bdd74345a1f3ede27a2512b (diff)
downloadbarebox-2862f95263d0ab82bd3aa5ecd47698e224214f96.tar.gz
barebox-2862f95263d0ab82bd3aa5ecd47698e224214f96.tar.xz
spi: mvebu: improve error reporting
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
-rw-r--r--drivers/spi/mvebu_spi.c14
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/spi/mvebu_spi.c b/drivers/spi/mvebu_spi.c
index c5d8732e4f..14ab39603c 100644
--- a/drivers/spi/mvebu_spi.c
+++ b/drivers/spi/mvebu_spi.c
@@ -264,13 +264,19 @@ static int mvebu_spi_do_transfer(struct spi_device *spi,
if (t->bits_per_word)
ret = mvebu_spi_set_transfer_size(priv, spi->bits_per_word);
- if (ret)
+ if (ret) {
+ dev_err(&spi->dev, "Failed to set transfer size (bpw = %u)\n",
+ (unsigned)spi->bits_per_word);
return ret;
+ }
if (t->speed_hz)
ret = priv->set_baudrate(priv, t->speed_hz);
- if (ret)
+ if (ret) {
+ dev_err(&spi->dev, "Failed to set baudrate to %u Hz\n",
+ (unsigned)t->speed_hz);
return ret;
+ }
inc = (priv->data16) ? 2 : 1;
for (n = 0; n < t->len; n += inc) {
@@ -314,8 +320,10 @@ static int mvebu_spi_transfer(struct spi_device *spi, struct spi_message *msg)
}
ret = mvebu_spi_set_cs(priv, spi->chip_select, spi->mode, true);
- if (ret)
+ if (ret) {
+ dev_err(&spi->dev, "Failed to set chip select\n");
return ret;
+ }
msg->actual_length = 0;