From: clinton.a.taylor@intel.com
To: Intel-gfx@lists.freedesktop.org
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>, dri-devel@lists.freedesktop.org
Subject: [PATCH 2/2] drm/i915/hdmi: Enable pipe pixel replication for SD interlaced modes
Date: Tue, 2 Sep 2014 17:03:36 -0700 [thread overview]
Message-ID: <1409702616-24273-3-git-send-email-clinton.a.taylor@intel.com> (raw)
In-Reply-To: <1409702616-24273-1-git-send-email-clinton.a.taylor@intel.com>
From: Clint Taylor <clinton.a.taylor@intel.com>
Enable 2x pixel replication for modes the mode flag DBLCLK to double
horizontal timings and pixel clock across TMDS.
Signed-off-by: Clint Taylor <clinton.a.taylor@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
drivers/gpu/drm/i915/intel_hdmi.c | 15 ++++++++++++---
1 file changed, 12 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index 9169786..9695768 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -864,10 +864,15 @@ static enum drm_mode_status
intel_hdmi_mode_valid(struct drm_connector *connector,
struct drm_display_mode *mode)
{
- if (mode->clock > hdmi_portclock_limit(intel_attached_hdmi(connector),
- true))
+ int clock = mode->clock;
+
+ if (mode->flags & DRM_MODE_FLAG_DBLCLK)
+ clock *= 2;
+
+ if (clock > hdmi_portclock_limit(intel_attached_hdmi(connector),
+ true))
return MODE_CLOCK_HIGH;
- if (mode->clock < 20000)
+ if (clock < 20000)
return MODE_CLOCK_LOW;
if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
@@ -921,6 +926,10 @@ bool intel_hdmi_compute_config(struct intel_encoder *encoder,
intel_hdmi->color_range = 0;
}
+ if (adjusted_mode->flags & DRM_MODE_FLAG_DBLCLK) {
+ pipe_config->pixel_multiplier = 2;
+ }
+
if (intel_hdmi->color_range)
pipe_config->limited_color_range = true;
--
1.7.9.5
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prev parent reply other threads:[~2014-09-03 0:03 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-03 0:03 [PATCH 0/2] drm/edid: Reduce horizontal timings for pixel clinton.a.taylor
2014-09-03 0:03 ` [PATCH 1/2] drm/edid: Reduce horizontal timings for pixel replicated modes clinton.a.taylor
2014-09-03 8:39 ` Daniel Vetter
2014-09-03 0:03 ` clinton.a.taylor [this message]
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