This is a note to let you know that I've just added the patch titled
drm/i915: Add HSW CRT output readout support
to the 3.11-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-i915-add-hsw-crt-output-readout-support.patch
and it can be found in the queue-3.11 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 7195a50b5c7e00cc3312934fd022c3006b533d12 Mon Sep 17 00:00:00 2001
From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Date: Tue, 24 Sep 2013 14:24:05 +0300
Subject: drm/i915: Add HSW CRT output readout support
From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
commit 7195a50b5c7e00cc3312934fd022c3006b533d12 upstream.
Call intel_ddi_get_config() to get the pipe_bpp settings from
DDI.
The sync polarity settings from DDI are irrelevant for CRT
output, so override them with data from the ADPA register.
Note: This is already merged in drm-intel-next-queued as
commit 6801c18c0a43386bb44712cbc028a7e05adb9f0d
Author: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Date: Tue Sep 24 14:24:05 2013 +0300
drm/i915: Add HSW CRT output readout support
but is required for the following edp bpp bugfix.
v2: Extract intel_crt_get_flags()
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=69691
Tested-by: Qingshuai Tian <qingshuai.tian@xxxxxxxxx>
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/intel_crt.c | 30 ++++++++++++++++++++++++++----
drivers/gpu/drm/i915/intel_ddi.c | 4 ++--
drivers/gpu/drm/i915/intel_drv.h | 2 ++
3 files changed, 30 insertions(+), 6 deletions(-)
--- a/drivers/gpu/drm/i915/intel_crt.c
+++ b/drivers/gpu/drm/i915/intel_crt.c
@@ -84,8 +84,7 @@ static bool intel_crt_get_hw_state(struc
return true;
}
-static void intel_crt_get_config(struct intel_encoder *encoder,
- struct intel_crtc_config *pipe_config)
+static unsigned int intel_crt_get_flags(struct intel_encoder *encoder)
{
struct drm_i915_private *dev_priv = encoder->base.dev->dev_private;
struct intel_crt *crt = intel_encoder_to_crt(encoder);
@@ -103,7 +102,27 @@ static void intel_crt_get_config(struct
else
flags |= DRM_MODE_FLAG_NVSYNC;
- pipe_config->adjusted_mode.flags |= flags;
+ return flags;
+}
+
+static void intel_crt_get_config(struct intel_encoder *encoder,
+ struct intel_crtc_config *pipe_config)
+{
+ struct drm_device *dev = encoder->base.dev;
+
+ pipe_config->adjusted_mode.flags |= intel_crt_get_flags(encoder);
+}
+
+static void hsw_crt_get_config(struct intel_encoder *encoder,
+ struct intel_crtc_config *pipe_config)
+{
+ intel_ddi_get_config(encoder, pipe_config);
+
+ pipe_config->adjusted_mode.flags &= ~(DRM_MODE_FLAG_PHSYNC |
+ DRM_MODE_FLAG_NHSYNC |
+ DRM_MODE_FLAG_PVSYNC |
+ DRM_MODE_FLAG_NVSYNC);
+ pipe_config->adjusted_mode.flags |= intel_crt_get_flags(encoder);
}
/* Note: The caller is required to filter out dpms modes not supported by the
@@ -802,7 +821,10 @@ void intel_crt_init(struct drm_device *d
crt->base.compute_config = intel_crt_compute_config;
crt->base.disable = intel_disable_crt;
crt->base.enable = intel_enable_crt;
- crt->base.get_config = intel_crt_get_config;
+ if (IS_HASWELL(dev))
+ crt->base.get_config = hsw_crt_get_config;
+ else
+ crt->base.get_config = intel_crt_get_config;
if (I915_HAS_HOTPLUG(dev))
crt->base.hpd_pin = HPD_CRT;
if (HAS_DDI(dev))
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -1261,8 +1261,8 @@ static void intel_ddi_hot_plug(struct in
intel_dp_check_link_status(intel_dp);
}
-static void intel_ddi_get_config(struct intel_encoder *encoder,
- struct intel_crtc_config *pipe_config)
+void intel_ddi_get_config(struct intel_encoder *encoder,
+ struct intel_crtc_config *pipe_config)
{
struct drm_i915_private *dev_priv = encoder->base.dev->dev_private;
struct intel_crtc *intel_crtc = to_intel_crtc(encoder->base.crtc);
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -816,6 +816,8 @@ extern void intel_ddi_prepare_link_retra
extern bool
intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector);
extern void intel_ddi_fdi_disable(struct drm_crtc *crtc);
+extern void intel_ddi_get_config(struct intel_encoder *encoder,
+ struct intel_crtc_config *pipe_config);
extern void intel_display_handle_reset(struct drm_device *dev);
extern bool intel_set_cpu_fifo_underrun_reporting(struct drm_device *dev,
Patches currently in stable-queue which might be from ville.syrjala@xxxxxxxxxxxxxxx are
queue-3.11/drm-i915-add-hsw-crt-output-readout-support.patch
queue-3.11/drm-i915-fix-the-ppt-fdi-lane-bifurcate-state-handling-on-ivb.patch
queue-3.11/drm-i915-add-support-for-pipe_bpp-readout.patch
queue-3.11/drm-prevent-overwriting-from-userspace-underallocating-core-ioctl-structs.patch
--
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