Module Name: src
Committed By: jmcneill
Date: Sun Nov 15 14:39:12 UTC 2015
Modified Files:
src/sys/arch/arm/nvidia: tegra_drm_mode.c
Log Message:
If we are going to be doing read/modify/write in triple-buffered mode, make
sure we don't read back the buffered values and not the active ones
To generate a diff of this commit:
cvs rdiff -u -r1.7 -r1.8 src/sys/arch/arm/nvidia/tegra_drm_mode.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/arm/nvidia/tegra_drm_mode.c
diff -u src/sys/arch/arm/nvidia/tegra_drm_mode.c:1.7 src/sys/arch/arm/nvidia/tegra_drm_mode.c:1.8
--- src/sys/arch/arm/nvidia/tegra_drm_mode.c:1.7 Sat Nov 14 23:16:41 2015
+++ src/sys/arch/arm/nvidia/tegra_drm_mode.c Sun Nov 15 14:39:12 2015
@@ -1,4 +1,4 @@
-/* $NetBSD: tegra_drm_mode.c,v 1.7 2015/11/14 23:16:41 jmcneill Exp $ */
+/* $NetBSD: tegra_drm_mode.c,v 1.8 2015/11/15 14:39:12 jmcneill Exp $ */
/*-
* Copyright (c) 2015 Jared D. McNeill <jmcne...@invisible.ca>
@@ -27,7 +27,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: tegra_drm_mode.c,v 1.7 2015/11/14 23:16:41 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: tegra_drm_mode.c,v 1.8 2015/11/15 14:39:12 jmcneill Exp $");
#include <drm/drmP.h>
#include <drm/drm_crtc.h>
@@ -680,8 +680,8 @@ tegra_crtc_prepare(struct drm_crtc *crtc
struct tegra_crtc *tegra_crtc = to_tegra_crtc(crtc);
/* Access control */
- DC_WRITE(tegra_crtc, DC_CMD_STATE_ACCESS_REG,
- DC_CMD_STATE_ACCESS_READ_MUX);
+ DC_WRITE(tegra_crtc, DC_CMD_STATE_ACCESS_REG, 0);
+
/* Enable window A programming */
DC_WRITE(tegra_crtc, DC_CMD_DISPLAY_WINDOW_HEADER_REG,
DC_CMD_DISPLAY_WINDOW_HEADER_WINDOW_A_SELECT);
