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authorLinus Torvalds <torvalds@linux-foundation.org>2012-06-17 01:44:41 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-06-17 01:44:41 -0700
commitfb09185a88cad9c59e22e84f8c0594303595e9af (patch)
treea7287193506fe491cff1ac84b72e1865906991d7 /drivers/gpu/drm/i915/intel_dp.c
parent41a328b95c00fa00ed5832c2876aee7186222438 (diff)
parentc4af5c4597a7a5d64e058703e1328f315a59794e (diff)
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Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie: "Radeon is most of the work, one regression, one BUG fix in the new prime code, some fixes to init code to make streamout not lock up the hardware, and just some code to enable users to test HDMI audio on later hw (its off by default). Intel adds edp edid caching for some strange Dell Vostros that black screen on startup if keep reading their EDID, and a fix for a DP regression. Otherwise fix for via/sis and one to stop udl binding to multiple non-video usb." * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm/i915: cache the EDID for eDP panels Revert "drm/i915/dp: Use auxch precharge value of 5 everywhere" drm/i915: eDP aux needs vdd drm/i915: don't enumerate HDMID if an eDP panel is already active on the port drm/radeon: add support for STRMOUT_BASE_UPDATE on 7xx drm/radeon: add some additional 6xx/7xx/EG register init drm/radeon: enable HDMI on DCE5 (AKA NI excluding Aruba) drm sis: initialize object_idr drm via: initialize object_idr drm/radeon/prime: reserve/unreserve around pin drm/radeon: fix regression in dynpm due to multi-ring rework vga_switcheroo.h: fix pci_dev warning drm/udl: only bind to the video devices on the hub.
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dp.c')
-rw-r--r--drivers/gpu/drm/i915/intel_dp.c60
1 files changed, 53 insertions, 7 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 296cfc201a81..c0449324143c 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -32,6 +32,7 @@
#include "drm.h"
#include "drm_crtc.h"
#include "drm_crtc_helper.h"
+#include "drm_edid.h"
#include "intel_drv.h"
#include "i915_drm.h"
#include "i915_drv.h"
@@ -67,6 +68,8 @@ struct intel_dp {
struct drm_display_mode *panel_fixed_mode; /* for eDP */
struct delayed_work panel_vdd_work;
bool want_panel_vdd;
+ struct edid *edid; /* cached EDID for eDP */
+ int edid_mode_count;
};
/**
@@ -371,7 +374,7 @@ intel_dp_aux_ch(struct intel_dp *intel_dp,
int recv_bytes;
uint32_t status;
uint32_t aux_clock_divider;
- int try, precharge = 5;
+ int try, precharge;
intel_dp_check_edp(intel_dp);
/* The clock divider is based off the hrawclk,
@@ -391,6 +394,11 @@ intel_dp_aux_ch(struct intel_dp *intel_dp,
else
aux_clock_divider = intel_hrawclk(dev) / 2;
+ if (IS_GEN6(dev))
+ precharge = 3;
+ else
+ precharge = 5;
+
/* Try to wait for any previous AUX channel activity */
for (try = 0; try < 3; try++) {
status = I915_READ(ch_ctl);
@@ -1973,6 +1981,8 @@ intel_dp_probe_oui(struct intel_dp *intel_dp)
if (!(intel_dp->dpcd[DP_DOWN_STREAM_PORT_COUNT] & DP_OUI_SUPPORT))
return;
+ ironlake_edp_panel_vdd_on(intel_dp);
+
if (intel_dp_aux_native_read_retry(intel_dp, DP_SINK_OUI, buf, 3))
DRM_DEBUG_KMS("Sink OUI: %02hx%02hx%02hx\n",
buf[0], buf[1], buf[2]);
@@ -1980,6 +1990,8 @@ intel_dp_probe_oui(struct intel_dp *intel_dp)
if (intel_dp_aux_native_read_retry(intel_dp, DP_BRANCH_OUI, buf, 3))
DRM_DEBUG_KMS("Branch OUI: %02hx%02hx%02hx\n",
buf[0], buf[1], buf[2]);
+
+ ironlake_edp_panel_vdd_off(intel_dp, false);
}
static bool
@@ -2116,10 +2128,22 @@ intel_dp_get_edid(struct drm_connector *connector, struct i2c_adapter *adapter)
{
struct intel_dp *intel_dp = intel_attached_dp(connector);
struct edid *edid;
+ int size;
+
+ if (is_edp(intel_dp)) {
+ if (!intel_dp->edid)
+ return NULL;
+
+ size = (intel_dp->edid->extensions + 1) * EDID_LENGTH;
+ edid = kmalloc(size, GFP_KERNEL);
+ if (!edid)
+ return NULL;
+
+ memcpy(edid, intel_dp->edid, size);
+ return edid;
+ }
- ironlake_edp_panel_vdd_on(intel_dp);
edid = drm_get_edid(connector, adapter);
- ironlake_edp_panel_vdd_off(intel_dp, false);
return edid;
}
@@ -2129,9 +2153,17 @@ intel_dp_get_edid_modes(struct drm_connector *connector, struct i2c_adapter *ada
struct intel_dp *intel_dp = intel_attached_dp(connector);
int ret;
- ironlake_edp_panel_vdd_on(intel_dp);
+ if (is_edp(intel_dp)) {
+ drm_mode_connector_update_edid_property(connector,
+ intel_dp->edid);
+ ret = drm_add_edid_modes(connector, intel_dp->edid);
+ drm_edid_to_eld(connector,
+ intel_dp->edid);
+ connector->display_info.raw_edid = NULL;
+ return intel_dp->edid_mode_count;
+ }
+
ret = intel_ddc_get_modes(connector, adapter);
- ironlake_edp_panel_vdd_off(intel_dp, false);
return ret;
}
@@ -2321,6 +2353,7 @@ static void intel_dp_encoder_destroy(struct drm_encoder *encoder)
i2c_del_adapter(&intel_dp->adapter);
drm_encoder_cleanup(encoder);
if (is_edp(intel_dp)) {
+ kfree(intel_dp->edid);
cancel_delayed_work_sync(&intel_dp->panel_vdd_work);
ironlake_panel_vdd_off_sync(intel_dp);
}
@@ -2504,11 +2537,14 @@ intel_dp_init(struct drm_device *dev, int output_reg)
break;
}
+ intel_dp_i2c_init(intel_dp, intel_connector, name);
+
/* Cache some DPCD data in the eDP case */
if (is_edp(intel_dp)) {
bool ret;
struct edp_power_seq cur, vbt;
u32 pp_on, pp_off, pp_div;
+ struct edid *edid;
pp_on = I915_READ(PCH_PP_ON_DELAYS);
pp_off = I915_READ(PCH_PP_OFF_DELAYS);
@@ -2576,9 +2612,19 @@ intel_dp_init(struct drm_device *dev, int output_reg)
intel_dp_destroy(&intel_connector->base);
return;
}
- }
- intel_dp_i2c_init(intel_dp, intel_connector, name);
+ ironlake_edp_panel_vdd_on(intel_dp);
+ edid = drm_get_edid(connector, &intel_dp->adapter);
+ if (edid) {
+ drm_mode_connector_update_edid_property(connector,
+ edid);
+ intel_dp->edid_mode_count =
+ drm_add_edid_modes(connector, edid);
+ drm_edid_to_eld(connector, edid);
+ intel_dp->edid = edid;
+ }
+ ironlake_edp_panel_vdd_off(intel_dp, false);
+ }
intel_encoder->hot_plug = intel_dp_hot_plug;