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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>
This commit is contained in:
Uwe Kleine-König 2016-12-08 11:52:26 +01:00 committed by Sascha Hauer
parent 7251966266
commit 2862f95263
1 changed files with 11 additions and 3 deletions
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14
drivers/spi/mvebu_spi.c
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@ -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;