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drm/i915: VLV2 - Fix hotplug detect bits 

Add new definitions for hotplug live status bits for VLV2 since they're
in reverse order from the gen4x ones.

Changelog:
- Restored gen4 bit definitions
- Added new definitions for VLV2
- Added platform check for IS_VALLEYVIEW() in dp_detect to use the correct
  bit defintions
- Replaced a lost trailing brace for the added switch()

Signed-off-by: Todd Previte <tprevite@gmail.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=73951
[danvet: Switch to _VLV postfix instead of prefix and regroupg
comments again so that the g4x warning is right next to those defines.
Also add a _G4X suffix for those special ones. Also cc stable.]
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Todd Previte 2014-01-23 00:13:41 -07:00 committed by Daniel Vetter
parent 4318101121
commit 232a6ee9af
2 changed files with 35 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/gpu/drm/i915/i915_reg.h
View File

@ -2122,9 +2122,13 @@
* Please check the detailed lore in the commit message for for experimental
* evidence.
*/
#define PORTD_HOTPLUG_LIVE_STATUS (1 << 29)
#define PORTC_HOTPLUG_LIVE_STATUS (1 << 28)
#define PORTB_HOTPLUG_LIVE_STATUS (1 << 27)
#define PORTD_HOTPLUG_LIVE_STATUS_G4X (1 << 29)
#define PORTC_HOTPLUG_LIVE_STATUS_G4X (1 << 28)
#define PORTB_HOTPLUG_LIVE_STATUS_G4X (1 << 27)
/* VLV DP/HDMI bits again match Bspec */
#define PORTD_HOTPLUG_LIVE_STATUS_VLV (1 << 27)
#define PORTC_HOTPLUG_LIVE_STATUS_VLV (1 << 28)
#define PORTB_HOTPLUG_LIVE_STATUS_VLV (1 << 29)
#define PORTD_HOTPLUG_INT_STATUS (3 << 21)
#define PORTC_HOTPLUG_INT_STATUS (3 << 19)
#define PORTB_HOTPLUG_INT_STATUS (3 << 17)

40
drivers/gpu/drm/i915/intel_dp.c
View File

@ -3009,18 +3009,34 @@ g4x_dp_detect(struct intel_dp *intel_dp)
return status;
}
switch (intel_dig_port->port) {
case PORT_B:
bit = PORTB_HOTPLUG_LIVE_STATUS;
break;
case PORT_C:
bit = PORTC_HOTPLUG_LIVE_STATUS;
break;
case PORT_D:
bit = PORTD_HOTPLUG_LIVE_STATUS;
break;
default:
return connector_status_unknown;
if (IS_VALLEYVIEW(dev)) {
switch (intel_dig_port->port) {
case PORT_B:
bit = PORTB_HOTPLUG_LIVE_STATUS_VLV;
break;
case PORT_C:
bit = PORTC_HOTPLUG_LIVE_STATUS_VLV;
break;
case PORT_D:
bit = PORTD_HOTPLUG_LIVE_STATUS_VLV;
break;
default:
return connector_status_unknown;
}
} else {
switch (intel_dig_port->port) {
case PORT_B:
bit = PORTB_HOTPLUG_LIVE_STATUS_G4X;
break;
case PORT_C:
bit = PORTC_HOTPLUG_LIVE_STATUS_G4X;
break;
case PORT_D:
bit = PORTD_HOTPLUG_LIVE_STATUS_G4X;
break;
default:
return connector_status_unknown;
}
}
if ((I915_READ(PORT_HOTPLUG_STAT) & bit) == 0)