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Merge tag 'drm-intel-fixes-2016-02-18' of git://anongit.freedesktop.org/drm-intel into drm-fixes

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single g4x hpd fix.

* tag 'drm-intel-fixes-2016-02-18' of git://anongit.freedesktop.org/drm-intel:
  drm/i915: Fix hpd live status bits for g4x
This commit is contained in:
Dave Airlie 2016-02-19 12:43:03 +10:00
commit 42412b120d
2 changed files with 15 additions and 14 deletions
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15
drivers/gpu/drm/i915/i915_reg.h
View File

@ -3287,19 +3287,20 @@ enum skl_disp_power_wells {
#define PORT_HOTPLUG_STAT _MMIO(dev_priv->info.display_mmio_offset + 0x61114)
/*
* HDMI/DP bits are gen4+
* HDMI/DP bits are g4x+
*
* WARNING: Bspec for hpd status bits on gen4 seems to be completely confused.
* Please check the detailed lore in the commit message for for experimental
* evidence.
*/
#define PORTD_HOTPLUG_LIVE_STATUS_G4X (1 << 29)
/* Bspec says GM45 should match G4X/VLV/CHV, but reality disagrees */
#define PORTD_HOTPLUG_LIVE_STATUS_GM45 (1 << 29)
#define PORTC_HOTPLUG_LIVE_STATUS_GM45 (1 << 28)
#define PORTB_HOTPLUG_LIVE_STATUS_GM45 (1 << 27)
/* G4X/VLV/CHV DP/HDMI bits again match Bspec */
#define PORTD_HOTPLUG_LIVE_STATUS_G4X (1 << 27)
#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 PORTB_HOTPLUG_LIVE_STATUS_G4X (1 << 29)
#define PORTD_HOTPLUG_INT_STATUS (3 << 21)
#define PORTD_HOTPLUG_INT_LONG_PULSE (2 << 21)
#define PORTD_HOTPLUG_INT_SHORT_PULSE (1 << 21)

14
drivers/gpu/drm/i915/intel_dp.c
View File

@ -4493,20 +4493,20 @@ static bool g4x_digital_port_connected(struct drm_i915_private *dev_priv,
return I915_READ(PORT_HOTPLUG_STAT) & bit;
}
static bool vlv_digital_port_connected(struct drm_i915_private *dev_priv,
struct intel_digital_port *port)
static bool gm45_digital_port_connected(struct drm_i915_private *dev_priv,
struct intel_digital_port *port)
{
u32 bit;
switch (port->port) {
case PORT_B:
bit = PORTB_HOTPLUG_LIVE_STATUS_VLV;
bit = PORTB_HOTPLUG_LIVE_STATUS_GM45;
break;
case PORT_C:
bit = PORTC_HOTPLUG_LIVE_STATUS_VLV;
bit = PORTC_HOTPLUG_LIVE_STATUS_GM45;
break;
case PORT_D:
bit = PORTD_HOTPLUG_LIVE_STATUS_VLV;
bit = PORTD_HOTPLUG_LIVE_STATUS_GM45;
break;
default:
MISSING_CASE(port->port);
@ -4558,8 +4558,8 @@ bool intel_digital_port_connected(struct drm_i915_private *dev_priv,
return cpt_digital_port_connected(dev_priv, port);
else if (IS_BROXTON(dev_priv))
return bxt_digital_port_connected(dev_priv, port);
else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
return vlv_digital_port_connected(dev_priv, port);
else if (IS_GM45(dev_priv))
return gm45_digital_port_connected(dev_priv, port);
else
return g4x_digital_port_connected(dev_priv, port);
}