aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux/brcm2708/patches-4.9/0130-spi-bcm2835-Disable-forced-software-CS.patch
diff options
context:
space:
mode:
Diffstat (limited to 'target/linux/brcm2708/patches-4.9/0130-spi-bcm2835-Disable-forced-software-CS.patch')
-rw-r--r--target/linux/brcm2708/patches-4.9/0130-spi-bcm2835-Disable-forced-software-CS.patch26
1 files changed, 26 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.9/0130-spi-bcm2835-Disable-forced-software-CS.patch b/target/linux/brcm2708/patches-4.9/0130-spi-bcm2835-Disable-forced-software-CS.patch
new file mode 100644
index 0000000000..b4ade04396
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.9/0130-spi-bcm2835-Disable-forced-software-CS.patch
@@ -0,0 +1,26 @@
+From 2248b18b5d21d0ce59bb874a8e20e53a39317eb0 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Fri, 1 Jul 2016 22:09:24 +0100
+Subject: [PATCH] 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>
+---
+ arch/arm/boot/dts/bcm283x.dtsi | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/arch/arm/boot/dts/bcm283x.dtsi
++++ b/arch/arm/boot/dts/bcm283x.dtsi
+@@ -163,6 +163,7 @@
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
++ cs-gpios = <&gpio 8 1>, <&gpio 7 1>;
+ };
+
+ i2c0: i2c@7e205000 {