mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-29 01:59:02 +00:00
35 lines
979 B
Diff
35 lines
979 B
Diff
|
From 6af2125a4aa2bfacda4e7c01ed3214a3a866eab6 Mon Sep 17 00:00:00 2001
|
||
|
|
From: Phil Elwell <phil@raspberrypi.org>
|
||
|
|
Date: Fri, 1 Jul 2016 22:09:24 +0100
|
||
|
|
Subject: [PATCH 013/454] spi-bcm2835: Disable forced software CS
|
||
|
|
|
||
|
|
Select software CS in bcm2708_common.dtsi, and disable the automatic
|
||
|
|
conversion in the driver to allow hardware CS to be re-enabled with an
|
||
|
|
overlay.
|
||
|
|
|
||
|
|
See: https://github.com/raspberrypi/linux/issues/1547
|
||
|
|
|
||
|
|
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
|
||
|
|
---
|
||
|
|
drivers/spi/spi-bcm2835.c | 2 ++
|
||
|
|
1 file changed, 2 insertions(+)
|
||
|
|
|
||
|
|
--- a/drivers/spi/spi-bcm2835.c
|
||
|
|
+++ b/drivers/spi/spi-bcm2835.c
|
||
|
|
@@ -707,6 +707,7 @@ static int bcm2835_spi_setup(struct spi_
|
||
|
|
return -EINVAL;
|
||
|
|
}
|
||
|
|
|
||
|
|
+#if 0
|
||
|
|
/* now translate native cs to GPIO */
|
||
|
|
/* first look for chip select pins in the devices pin groups */
|
||
|
|
for (pingroup_index = 0;
|
||
|
|
@@ -756,6 +757,7 @@ static int bcm2835_spi_setup(struct spi_
|
||
|
|
spi->chip_select, spi->cs_gpio, err);
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
+#endif
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|