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103 lines
2.7 KiB
Diff
103 lines
2.7 KiB
Diff
From b1d6499e00b6061ecc7061335199acf86f54d31a Mon Sep 17 00:00:00 2001
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From: Dave Stevenson <dave.stevenson@raspberrypi.com>
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Date: Fri, 13 Mar 2020 16:52:55 +0000
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Subject: [PATCH] dtoverlays: Add overlay to enable the HEVC V4L2
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driver
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This replaces the rpivid_mem register mapping driver.
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When the driver is complete, these DT changes should be
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merged into the base DT instead of being an overlay.
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Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
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---
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arch/arm/boot/dts/overlays/Makefile | 1 +
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arch/arm/boot/dts/overlays/README | 7 +++
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.../boot/dts/overlays/rpivid-v4l2-overlay.dts | 55 +++++++++++++++++++
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4 files changed, 63 insertions(+), 2 deletions(-)
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create mode 100644 arch/arm/boot/dts/overlays/rpivid-v4l2-overlay.dts
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--- a/arch/arm/boot/dts/overlays/Makefile
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+++ b/arch/arm/boot/dts/overlays/Makefile
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@@ -140,6 +140,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
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rpi-proto.dtbo \
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rpi-sense.dtbo \
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rpi-tv.dtbo \
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+ rpivid-v4l2.dtbo \
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rra-digidac1-wm8741-audio.dtbo \
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sc16is750-i2c.dtbo \
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sc16is752-i2c.dtbo \
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--- a/arch/arm/boot/dts/overlays/README
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+++ b/arch/arm/boot/dts/overlays/README
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@@ -2064,6 +2064,13 @@ Load: dtoverlay=rpi-tv
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Params: <None>
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+Name: rpivid-v4l2
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+Info: Load the V4L2 stateless video decoder driver for the HEVC block,
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+ disabling the memory mapped devices in the process.
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+Load: dtoverlay=rpivid-v4l2
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+Params: <None>
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+
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+
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Name: rra-digidac1-wm8741-audio
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Info: Configures the Red Rocks Audio DigiDAC1 soundcard
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Load: dtoverlay=rra-digidac1-wm8741-audio
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--- /dev/null
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+++ b/arch/arm/boot/dts/overlays/rpivid-v4l2-overlay.dts
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@@ -0,0 +1,55 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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+// Definitions for Raspberry Pi video decode engine
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+/dts-v1/;
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+/plugin/;
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+
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+#include <dt-bindings/interrupt-controller/arm-gic.h>
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+
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+/{
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+ compatible = "brcm,bcm2711";
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+
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+ fragment@0 {
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+ target = <&scb>;
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+ __overlay__ {
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+ /* needed to avoid dtc warning */
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+ #address-cells = <2>;
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+ #size-cells = <1>;
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+ codec@7eb10000 {
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+ compatible = "raspberrypi,rpivid-vid-decoder";
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+ reg = <0x0 0x7eb10000 0x1000>, /* INTC */
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+ <0x0 0x7eb00000 0x10000>; /* HEVC */
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+ reg-names = "intc",
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+ "hevc";
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+
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+ interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;
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+
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+ clocks = <&hevc_clk>;
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+ clock-names = "hevc";
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+
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+ hevc_clk: hevc_clk {
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+ compatible = "fixed-clock";
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+ #clock-cells = <0>;
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+ clock-frequency = <500000000>;
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+ };
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+ };
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+ };
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+ };
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+
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+ fragment@1 {
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+ target = <&scb>;
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+ __overlay__ {
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+ hevc-decoder@7eb00000 {
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+ status = "disabled";
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+ };
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+ rpivid-local-intc@7eb10000 {
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+ status = "disabled";
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+ };
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+ h264-decoder@7eb20000 {
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+ status = "disabled";
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+ };
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+ vp9-decoder@7eb30000 {
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+ status = "disabled";
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+ };
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+ };
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+ };
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+};
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