diff mbox

spi/spi-fsl-espi.c: Add spi cs polarity support

Message ID 20151207070657.GA25586@awelinux (mailing list archive)
State New, archived
Headers show

Commit Message

Andreas Werner Dec. 7, 2015, 7:07 a.m. UTC 
Add CS polarity flag to be able to set the CS polarity
via the DT property spi-cs-high.

Signed-off-by: Andreas Werner <andreas.werner@men.de>
---
 drivers/spi/spi-fsl-espi.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

Comments

Andreas Werner Jan. 6, 2016, 1 p.m. UTC | #1 
Hi,
any comments for this patches?

Regards
Andy
--
To unsubscribe from this list: send the line "unsubscribe linux-spi" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Mark Brown Jan. 6, 2016, 5:31 p.m. UTC | #2 
On Wed, Jan 06, 2016 at 02:00:40PM +0100, Andreas Werner wrote:
> Hi,
> any comments for this patches?
> 
> Regards
> Andy

Please don't send content free pings and please allow a reasonable time
for review.  People get busy, go on holiday, attend conferences and so 
on so unless there is some reason for urgency (like critical bug fixes)
please allow at least a couple of weeks for review.  Sending content
free pings just adds to the mail volume (if they are seen at all) and if 
something has gone wrong you'll have to resend the patches anyway.
diff mbox

Patch

diff --git a/drivers/spi/spi-fsl-espi.c b/drivers/spi/spi-fsl-espi.c
index c27124a..2dc70953 100644
--- a/drivers/spi/spi-fsl-espi.c
+++ b/drivers/spi/spi-fsl-espi.c
@@ -495,7 +495,7 @@  static int fsl_espi_setup(struct spi_device *spi)
 			&reg_base->csmode[spi->chip_select]);
 	/* mask out bits we are going to set */
 	cs->hw_mode &= ~(CSMODE_CP_BEGIN_EDGECLK | CSMODE_CI_INACTIVEHIGH
-			 | CSMODE_REV);
+			 | CSMODE_REV | CSMODE_POL_1);
 
 	if (spi->mode & SPI_CPHA)
 		cs->hw_mode |= CSMODE_CP_BEGIN_EDGECLK;
@@ -503,6 +503,8 @@  static int fsl_espi_setup(struct spi_device *spi)
 		cs->hw_mode |= CSMODE_CI_INACTIVEHIGH;
 	if (!(spi->mode & SPI_LSB_FIRST))
 		cs->hw_mode |= CSMODE_REV;
+	if (!(spi->mode & SPI_CS_HIGH))
+		cs->hw_mode |= CSMODE_POL_1;
 
 	/* Handle the loop mode */
 	loop_mode = mpc8xxx_spi_read_reg(&reg_base->mode);