openwrtv4/target/linux/brcm2708/patches-4.4/0440-drm-vc4-Fix-flipped-HVS-channels-for-DSI0-1.patch
Álvaro Fernández Rojas 2b1c6b21b5 brcm2708: update linux 4.4 patches to latest version
As usual these patches were extracted and rebased from the raspberry pi repo:
https://github.com/raspberrypi/linux/tree/rpi-4.4.y

Also adds support for Raspberry Pi Compute Module 3 (untested).

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2016-09-10 14:54:26 +02:00

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Diff

From 3ecee79bedf0a2dbca94281674b7a86f3b82f522 Mon Sep 17 00:00:00 2001
From: Eric Anholt <eric@anholt.net>
Date: Thu, 11 Feb 2016 12:29:45 -0800
Subject: [PATCH] drm/vc4: Fix flipped HVS channels for DSI0/1.
Empirically, DSI1 appears to be using HVS channel 0 on my Pi2.
Signed-off-by: Eric Anholt <eric@anholt.net>
---
drivers/gpu/drm/vc4/vc4_crtc.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/gpu/drm/vc4/vc4_crtc.c
+++ b/drivers/gpu/drm/vc4/vc4_crtc.c
@@ -699,13 +699,13 @@ void vc4_cancel_page_flip(struct drm_crt
}
static const struct vc4_crtc_data pv0_data = {
- .hvs_channel = 0,
+ .hvs_channel = 2,
.encoder0_type = VC4_ENCODER_TYPE_DSI0,
.encoder1_type = VC4_ENCODER_TYPE_DPI,
};
static const struct vc4_crtc_data pv1_data = {
- .hvs_channel = 2,
+ .hvs_channel = 0,
.encoder0_type = VC4_ENCODER_TYPE_DSI1,
.encoder1_type = VC4_ENCODER_TYPE_SMI,
};