This is a note to let you know that I've just added the patch titled
drm/radeon/kms/atom: force bpc to 8 for now
to the 3.3-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-radeon-kms-atom-force-bpc-to-8-for-now.patch
and it can be found in the queue-3.3 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 017d213f649c6775e4a4349e50a5631a4e4c7308 Mon Sep 17 00:00:00 2001
From: Alex Deucher <[email protected]>
Date: Fri, 23 Mar 2012 14:44:47 -0400
Subject: drm/radeon/kms/atom: force bpc to 8 for now
From: Alex Deucher <[email protected]>
commit 017d213f649c6775e4a4349e50a5631a4e4c7308 upstream.
Using the bpc (bits per color) specified by the monitor
can cause problems in some cases. Until we get a better
handle on how to deal with those cases, just use a bpc of 8.
Reported-by: Lennert Buytenhek <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Signed-off-by: Dave Airlie <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/gpu/drm/radeon/atombios_crtc.c | 8 +++++---
drivers/gpu/drm/radeon/atombios_dp.c | 3 +++
drivers/gpu/drm/radeon/atombios_encoders.c | 4 ++--
3 files changed, 10 insertions(+), 5 deletions(-)
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -550,8 +550,8 @@ static u32 atombios_adjust_pll(struct dr
if (encoder->crtc == crtc) {
radeon_encoder = to_radeon_encoder(encoder);
connector = radeon_get_connector_for_encoder(encoder);
- if (connector && connector->display_info.bpc)
- bpc = connector->display_info.bpc;
+ /* if (connector && connector->display_info.bpc)
+ bpc = connector->display_info.bpc; */
encoder_mode = atombios_get_encoder_mode(encoder);
is_duallink = radeon_dig_monitor_is_duallink(encoder,
mode->clock);
if ((radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT
| ATOM_DEVICE_DFP_SUPPORT)) ||
@@ -922,7 +922,9 @@ static void atombios_crtc_set_pll(struct
struct radeon_connector_atom_dig *dig_connector =
radeon_connector->con_priv;
int dp_clock;
- bpc = connector->display_info.bpc;
+
+ /* if (connector->display_info.bpc)
+ bpc = connector->display_info.bpc; */
switch (encoder_mode) {
case ATOM_ENCODER_MODE_DP_MST:
--- a/drivers/gpu/drm/radeon/atombios_dp.c
+++ b/drivers/gpu/drm/radeon/atombios_dp.c
@@ -405,10 +405,13 @@ static void dp_get_adjust_train(u8 link_
/* get bpc from the EDID */
static int convert_bpc_to_bpp(int bpc)
{
+#if 0
if (bpc == 0)
return 24;
else
return bpc * 3;
+#endif
+ return 24;
}
/* get the max pix clock supported by the link rate and lane num */
--- a/drivers/gpu/drm/radeon/atombios_encoders.c
+++ b/drivers/gpu/drm/radeon/atombios_encoders.c
@@ -537,7 +537,7 @@ atombios_dig_encoder_setup(struct drm_en
dp_clock = dig_connector->dp_clock;
dp_lane_count = dig_connector->dp_lane_count;
hpd_id = radeon_connector->hpd.hpd;
- bpc = connector->display_info.bpc;
+ /* bpc = connector->display_info.bpc; */
}
/* no dig encoder assigned */
@@ -1098,7 +1098,7 @@ atombios_external_encoder_setup(struct d
dp_lane_count = dig_connector->dp_lane_count;
connector_object_id =
(radeon_connector->connector_object_id &
OBJECT_ID_MASK) >> OBJECT_ID_SHIFT;
- bpc = connector->display_info.bpc;
+ /* bpc = connector->display_info.bpc; */
}
memset(&args, 0, sizeof(args));
Patches currently in stable-queue which might be from [email protected]
are
queue-3.3/drm-radeon-kms-atom-force-bpc-to-8-for-now.patch
queue-3.3/drm-radeon-kms-fix-analog-load-detection-on-dvi-i-connectors.patch
queue-3.3/drm-radeon-restrict-offset-for-legacy-hardware-cursor.patch
queue-3.3/drm-radeon-kms-add-connector-quirk-for-fujitsu-d3003-s2-board.patch
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