1 From c0aaf0d4213bfc9df85c397cd974f7a6f15255f2 Mon Sep 17 00:00:00 2001
2 From: Phil Elwell <phil@raspberrypi.org>
3 Date: Fri, 1 Jul 2016 22:09:24 +0100
4 Subject: [PATCH] spi-bcm2835: Disable forced software CS
6 Select software CS in bcm2708_common.dtsi, and disable the automatic
7 conversion in the driver to allow hardware CS to be re-enabled with an
10 See: https://github.com/raspberrypi/linux/issues/1547
12 Signed-off-by: Phil Elwell <phil@raspberrypi.org>
14 drivers/spi/spi-bcm2835.c | 2 ++
15 1 file changed, 2 insertions(+)
17 --- a/drivers/spi/spi-bcm2835.c
18 +++ b/drivers/spi/spi-bcm2835.c
19 @@ -707,6 +707,7 @@ static int bcm2835_spi_setup(struct spi_
24 /* now translate native cs to GPIO */
25 /* first look for chip select pins in the devices pin groups */
26 for (pingroup_index = 0;
27 @@ -756,6 +757,7 @@ static int bcm2835_spi_setup(struct spi_
28 spi->chip_select, spi->cs_gpio, err);