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drm/i915: Fix up sdvo hpd pins for i965g/gm 

Bspec seems to be full of lies, at least it disagress with reality:
Two systems corrobated that SDVO hpd bits are the same as on gen3.

v2: Update comment a bit.

Cc: Arthur Ranyan <arthur.j.runyan@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Tested-by: Chris Wilson <chris@chris-wilson.co.uk>
Reported-and-tested-by: Alex Fiestas <afiestas@kde.org>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=58405
Cc: stable@vger.kernel.org
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter 2013-06-24 21:33:28 +02:00
parent f5adf94e5f
commit 4f7fd7095d
2 changed files with 8 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/gpu/drm/i915/i915_irq.c
View File

@ -70,15 +70,6 @@ static const u32 hpd_status_gen4[] = {
[HPD_PORT_D] = PORTD_HOTPLUG_INT_STATUS
};
static const u32 hpd_status_i965[] = {
[HPD_CRT] = CRT_HOTPLUG_INT_STATUS,
[HPD_SDVO_B] = SDVOB_HOTPLUG_INT_STATUS_I965,
[HPD_SDVO_C] = SDVOC_HOTPLUG_INT_STATUS_I965,
[HPD_PORT_B] = PORTB_HOTPLUG_INT_STATUS,
[HPD_PORT_C] = PORTC_HOTPLUG_INT_STATUS,
[HPD_PORT_D] = PORTD_HOTPLUG_INT_STATUS
};
static const u32 hpd_status_i915[] = { /* i915 and valleyview are the same */
[HPD_CRT] = CRT_HOTPLUG_INT_STATUS,
[HPD_SDVO_B] = SDVOB_HOTPLUG_INT_STATUS_I915,
@ -3449,13 +3440,13 @@ static irqreturn_t i965_irq_handler(int irq, void *arg)
u32 hotplug_status = I915_READ(PORT_HOTPLUG_STAT);
u32 hotplug_trigger = hotplug_status & (IS_G4X(dev) ?
HOTPLUG_INT_STATUS_G4X :
HOTPLUG_INT_STATUS_I965);
HOTPLUG_INT_STATUS_I915);
DRM_DEBUG_DRIVER("hotplug event received, stat 0x%08x\n",
hotplug_status);
if (hotplug_trigger) {
if (hotplug_irq_storm_detect(dev, hotplug_trigger,
IS_G4X(dev) ? hpd_status_gen4 : hpd_status_i965))
IS_G4X(dev) ? hpd_status_gen4 : hpd_status_i915))
i915_hpd_irq_setup(dev);
queue_work(dev_priv->wq,
&dev_priv->hotplug_work);

13
drivers/gpu/drm/i915/i915_reg.h
View File

@ -1874,6 +1874,12 @@
/* SDVO is different across gen3/4 */
#define SDVOC_HOTPLUG_INT_STATUS_G4X (1 << 3)
#define SDVOB_HOTPLUG_INT_STATUS_G4X (1 << 2)
/*
* Bspec seems to be seriously misleaded about the SDVO hpd bits on i965g/gm,
* since reality corrobates that they're the same as on gen3. But keep these
* bits here (and the comment!) to help any other lost wanderers back onto the
* right tracks.
*/
#define SDVOC_HOTPLUG_INT_STATUS_I965 (3 << 4)
#define SDVOB_HOTPLUG_INT_STATUS_I965 (3 << 2)
#define SDVOC_HOTPLUG_INT_STATUS_I915 (1 << 7)
@ -1885,13 +1891,6 @@
PORTC_HOTPLUG_INT_STATUS | \
PORTD_HOTPLUG_INT_STATUS)
#define HOTPLUG_INT_STATUS_I965 (CRT_HOTPLUG_INT_STATUS | \
SDVOB_HOTPLUG_INT_STATUS_I965 | \
SDVOC_HOTPLUG_INT_STATUS_I965 | \
PORTB_HOTPLUG_INT_STATUS | \
PORTC_HOTPLUG_INT_STATUS | \
PORTD_HOTPLUG_INT_STATUS)
#define HOTPLUG_INT_STATUS_I915 (CRT_HOTPLUG_INT_STATUS | \
SDVOB_HOTPLUG_INT_STATUS_I915 | \
SDVOC_HOTPLUG_INT_STATUS_I915 | \