diff mbox

[2/4] spi/s3c64xx: Put the /CS GPIO into output mode

Message ID 1342610921-31986-2-git-send-email-broonie@opensource.wolfsonmicro.com (mailing list archive)
State New, archived
Headers show

Commit Message

Mark Brown July 18, 2012, 11:28 a.m. UTC
No call was being made by the GPIO driver to put the GPIO into output
mode meaning that the calls to gpio_set_value() which were being done
were not valid. A similar issue appears to exist with the DT GPIO
requests but as they appear to be being used for pinmux it's less clear
to me that we want to configure them.

Without this fix Cragganmore systems can't talk to their SPI devices.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
 drivers/spi/spi-s3c64xx.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff mbox

Patch

diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index 7258b18..6ed3ba8 100644
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -892,7 +892,8 @@  static int s3c64xx_spi_setup(struct spi_device *spi)
 	}
 
 	if (!spi_get_ctldata(spi)) {
-		err = gpio_request(cs->line, dev_name(&spi->dev));
+		err = gpio_request_one(cs->line, GPIOF_OUT_INIT_HIGH,
+				       dev_name(&spi->dev));
 		if (err) {
 			dev_err(&spi->dev,
 				"Failed to get /CS gpio [%d]: %d\n",