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| author | Álvaro Fernández Rojas <noltari@gmail.com> | 2021-02-18 18:04:33 +0100 |
|---|---|---|
| committer | Álvaro Fernández Rojas <noltari@gmail.com> | 2021-02-19 07:17:21 +0100 |
| commit | 62b7f5931c54e96fca56dd8761b0e466d355c881 (patch) | |
| tree | 1258b392752379833a075df006c2f6d7ac4be51d /target/linux/bcm27xx/patches-5.4/950-0978-Update-hy28b-overlay.dts.patch | |
| parent | 76d1168d0d4b9d76e2ad78c0fc6b255561deb284 (diff) | |
| download | upstream-62b7f5931c54e96fca56dd8761b0e466d355c881.tar.gz upstream-62b7f5931c54e96fca56dd8761b0e466d355c881.tar.bz2 upstream-62b7f5931c54e96fca56dd8761b0e466d355c881.zip | |
bcm27xx: import latest patches from the RPi foundation
bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G
bcm2710: boot tested on RPi 3B v1.2
bcm2711: boot tested on RPi 4B v1.1 4G
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
(cherry-picked from commit f07e572f64)
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0978-Update-hy28b-overlay.dts.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.4/950-0978-Update-hy28b-overlay.dts.patch | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0978-Update-hy28b-overlay.dts.patch b/target/linux/bcm27xx/patches-5.4/950-0978-Update-hy28b-overlay.dts.patch new file mode 100644 index 0000000000..48efb5adc2 --- /dev/null +++ b/target/linux/bcm27xx/patches-5.4/950-0978-Update-hy28b-overlay.dts.patch @@ -0,0 +1,21 @@ +From 8c997be099769362cb201d360ad57b639e799e9e Mon Sep 17 00:00:00 2001 +From: newbloke82 <39644602+newbloke82@users.noreply.github.com> +Date: Thu, 1 Oct 2020 19:16:35 +0200 +Subject: [PATCH] Update hy28b-overlay.dts + +My hy28b TFT stopped working on upgrade to 5.4 kernel. I had a whitescreen but no obvious errors when using 'sudo vcdbg log msg' or 'dmesg'. Both /dev/fb0 and /dev/fb1 were present. Followed this article on waveshare32b that 'reset_gpios needed to be 0 0 1 instead of 0 0 0' (https://forum.armbian.com/topic/13233-any-clues-for-the-creation-of-a-dtoverlay-for-fbtft-on-54y/). I applied a similar change to this dts file and compiled a new dtbo: 'dtc -O dtb -o hy28b.dtbo hy28b-overlay.dts'. Fixed my issue - may help others? I got from the 5.4 upgrade thread that other tft users are having issues with small tfts... https://www.raspberrypi.org/forums/viewtopic.php?f=29&t=269769&p=1706597&hilit=gpio#p1706597 +--- + arch/arm/boot/dts/overlays/hy28b-overlay.dts | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/arch/arm/boot/dts/overlays/hy28b-overlay.dts ++++ b/arch/arm/boot/dts/overlays/hy28b-overlay.dts +@@ -61,7 +61,7 @@ + fps = <50>; + buswidth = <8>; + startbyte = <0x70>; +- reset-gpios = <&gpio 25 0>; ++ reset-gpios = <&gpio 25 1>; + led-gpios = <&gpio 18 1>; + + gamma = "04 1F 4 7 7 0 7 7 6 0\n0F 00 1 7 4 0 0 0 6 7"; |