diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0343-BCM270X_DT-Fix-the-tinylcd35-overlay-RTC-support.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.4/0343-BCM270X_DT-Fix-the-tinylcd35-overlay-RTC-support.patch | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0343-BCM270X_DT-Fix-the-tinylcd35-overlay-RTC-support.patch b/target/linux/brcm2708/patches-4.4/0343-BCM270X_DT-Fix-the-tinylcd35-overlay-RTC-support.patch new file mode 100644 index 0000000000..cb6f4608b7 --- /dev/null +++ b/target/linux/brcm2708/patches-4.4/0343-BCM270X_DT-Fix-the-tinylcd35-overlay-RTC-support.patch @@ -0,0 +1,68 @@ +From f2bdc9fa776b22616cb5ec64ae1d027b8c4ca721 Mon Sep 17 00:00:00 2001 +From: Phil Elwell <phil@raspberrypi.org> +Date: Thu, 12 May 2016 09:04:20 +0100 +Subject: [PATCH] BCM270X_DT: Fix the tinylcd35 overlay RTC support + +Now that overlay parameters are applied before the merge (a requirement +for kernel runtime overlays) it is illegal for parameters/overrides to +target nodes in the base DTB. Solve the problem of only enabling I2C +when an RTC option is used by making the RTC fragments conditional, +and including the required status="okay" within the fragments. + +Signed-off-by: Phil Elwell <phil@raspberrypi.org> +--- + arch/arm/boot/dts/overlays/tinylcd35-overlay.dts | 18 ++++++++++-------- + 1 file changed, 10 insertions(+), 8 deletions(-) + +--- a/arch/arm/boot/dts/overlays/tinylcd35-overlay.dts ++++ b/arch/arm/boot/dts/overlays/tinylcd35-overlay.dts +@@ -132,28 +132,32 @@ + + fragment@5 { + target = <&i2c1>; +- __overlay__ { ++ __dormant__ { + #address-cells = <1>; + #size-cells = <0>; + ++ status = "okay"; ++ + pcf8563: pcf8563@51 { + compatible = "nxp,pcf8563"; + reg = <0x51>; +- status = "disabled"; ++ status = "okay"; + }; + }; + }; + + fragment@6 { + target = <&i2c1>; +- __overlay__ { ++ __dormant__ { + #address-cells = <1>; + #size-cells = <0>; + ++ status = "okay"; ++ + ds1307: ds1307@68 { + compatible = "maxim,ds1307"; + reg = <0x68>; +- status = "disabled"; ++ status = "okay"; + }; + }; + }; +@@ -213,10 +217,8 @@ + <&tinylcd35_ts>,"interrupts:0", + <&tinylcd35_ts>,"pendown-gpio:4"; + xohms = <&tinylcd35_ts>,"ti,x-plate-ohms;0"; +- rtc-pcf = <&i2c1>,"status", +- <&pcf8563>,"status"; +- rtc-ds = <&i2c1>,"status", +- <&ds1307>,"status"; ++ rtc-pcf = <0>,"=5"; ++ rtc-ds = <0>,"=6"; + keypad = <&keypad>,"status"; + }; + }; |