mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-20 22:23:27 +00:00
35 lines
979 B
Diff
35 lines
979 B
Diff
From 2610aceda837370048f86b4af27852463c3b5a47 Mon Sep 17 00:00:00 2001
|
|
From: Phil Elwell <phil@raspberrypi.org>
|
|
Date: Fri, 1 Jul 2016 22:09:24 +0100
|
|
Subject: [PATCH 012/806] 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
|
|
@@ -706,6 +706,7 @@ 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;
|
|
@@ -755,6 +756,7 @@ static int bcm2835_spi_setup(struct spi_
|
|
spi->chip_select, spi->cs_gpio, err);
|
|
return err;
|
|
}
|
|
+#endif
|
|
|
|
return 0;
|
|
}
|