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[arm64] Add patch enabling simplefb LCD on A64.

This commit is contained in:
Vagrant Cascadian 2018-04-13 20:34:07 -07:00
parent 846bba8048
commit f68523c82b
3 changed files with 54 additions and 0 deletions
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1
debian/changelog vendored
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@ -15,6 +15,7 @@ linux (4.16-1~exp2) UNRELEASED; urgency=medium
* [arm64] Enable features to support Pinebook and other A64 systems:
CONFIG_USB_MUSB_HDRC, CONFIG_USB_MUSB_SUNXI, CONFIG_SUN8I_DE2_CCU,
CONFIG_DMA_SUN6I
* [arm64] Add patch enabling simplefb LCD on A64.
-- Ben Hutchings <ben@decadent.org.uk> Sun, 08 Apr 2018 19:03:49 +0100

52
debian/patches/features/arm64/arm64-dts-allwinner-a64-add-simplefb-for-A64-SoC.patch vendored Normal file
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@ -0,0 +1,52 @@
From d7dcf718bacf638a4a6c5a62110d49c88e70ae3f Mon Sep 17 00:00:00 2001
From: Harald Geyer <harald@ccbib.org>
Date: Thu, 15 Mar 2018 16:25:08 +0000
Subject: [PATCH] arm64: dts: allwinner: a64: add simplefb for A64 SoC
The A64 SoC features two display pipelines, one has a LCD output, the
other has a HDMI output.
Add support for simplefb for the LCD output. Tested on Teres I.
This patch was inspired by work of Icenowy Zheng.
Signed-off-by: Harald Geyer <harald@ccbib.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
---
arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
index 5a70ed2093cd..58d1199ef9dd 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
@@ -56,6 +56,26 @@
#address-cells = <1>;
#size-cells = <1>;
+ chosen {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+/*
+ * The pipeline mixer0-lcd0 depends on clock CLK_MIXER0 from DE2 CCU.
+ * However there is no support for this clock on A64 yet, so we depend
+ * on the upstream clocks here to keep them (and thus CLK_MIXER0) up.
+ */
+ simplefb_lcd: framebuffer-lcd {
+ compatible = "allwinner,simple-framebuffer",
+ "simple-framebuffer";
+ allwinner,pipeline = "mixer0-lcd0";
+ clocks = <&ccu CLK_TCON0>,
+ <&ccu CLK_DE>, <&ccu CLK_BUS_DE>;
+ status = "disabled";
+ };
+ };
+
cpus {
#address-cells = <1>;
#size-cells = <0>;
--
2.11.0

1
debian/patches/series vendored
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@ -88,6 +88,7 @@ features/arm64/tegra210-sata/0004-ata-ahci_tegra-disable-DIPM.patch
features/arm64/tegra210-sata/0005-ata-ahci_tegra-Add-AHCI-support-for-Tegra210.patch
features/arm64/tegra210-sata/0006-arm64-tegra-Add-SATA-node-for-Tegra210.patch
features/arm64/tegra210-sata/0007-arm64-tegra-Enable-AHCI-on-Jetson-TX1.patch
features/arm64/arm64-dts-allwinner-a64-add-simplefb-for-A64-SoC.patch
# Miscellaneous bug fixes
bugfix/all/kbuild-use-nostdinc-in-compile-tests.patch