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Merge tag 'drm-intel-fixes-2018-04-26' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

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- Fix for black screen issues (FDO #104158 and #104425)
- A correction for wrongly applied display W/A
- Fixes for HDA codec interop issue (no audio) and too eager HW timeouts

* tag 'drm-intel-fixes-2018-04-26' of git://anongit.freedesktop.org/drm/drm-intel:
  drm/i915/fbdev: Enable late fbdev initial configuration
  drm/i915: Use ktime on wait_for
  drm/i915: Enable display WA#1183 from its correct spot
  drm/i915/audio: set minimum CD clock to twice the BCLK
This commit is contained in:
Dave Airlie 2018-04-27 14:08:47 +10:00
commit 24d9092c8b
4 changed files with 22 additions and 11 deletions
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16
drivers/gpu/drm/i915/intel_cdclk.c
View File

@ -2140,10 +2140,22 @@ int intel_crtc_compute_min_cdclk(const struct intel_crtc_state *crtc_state)
}
}
/* According to BSpec, "The CD clock frequency must be at least twice
/*
* According to BSpec, "The CD clock frequency must be at least twice
* the frequency of the Azalia BCLK." and BCLK is 96 MHz by default.
*
* FIXME: Check the actual, not default, BCLK being used.
*
* FIXME: This does not depend on ->has_audio because the higher CDCLK
* is required for audio probe, also when there are no audio capable
* displays connected at probe time. This leads to unnecessarily high
* CDCLK when audio is not required.
*
* FIXME: This limit is only applied when there are displays connected
* at probe time. If we probe without displays, we'll still end up using
* the platform minimum CDCLK, failing audio probe.
*/
if (crtc_state->has_audio && INTEL_GEN(dev_priv) >= 9)
if (INTEL_GEN(dev_priv) >= 9)
min_cdclk = max(2 * 96000, min_cdclk);
/*

4
drivers/gpu/drm/i915/intel_drv.h
View File

@ -49,12 +49,12 @@
* check the condition before the timeout.
*/
#define __wait_for(OP, COND, US, Wmin, Wmax) ({ \
unsigned long timeout__ = jiffies + usecs_to_jiffies(US) + 1; \
const ktime_t end__ = ktime_add_ns(ktime_get_raw(), 1000ll * (US)); \
long wait__ = (Wmin); /* recommended min for usleep is 10 us */ \
int ret__; \
might_sleep(); \
for (;;) { \
bool expired__ = time_after(jiffies, timeout__); \
const bool expired__ = ktime_after(ktime_get_raw(), end__); \
OP; \
if (COND) { \
ret__ = 0; \

2
drivers/gpu/drm/i915/intel_fbdev.c
View File

@ -806,7 +806,7 @@ void intel_fbdev_output_poll_changed(struct drm_device *dev)
return;
intel_fbdev_sync(ifbdev);
if (ifbdev->vma)
if (ifbdev->vma || ifbdev->helper.deferred_setup)
drm_fb_helper_hotplug_event(&ifbdev->helper);
}

11
drivers/gpu/drm/i915/intel_runtime_pm.c
View File

@ -641,19 +641,18 @@ void skl_enable_dc6(struct drm_i915_private *dev_priv)
DRM_DEBUG_KMS("Enabling DC6\n");
gen9_set_dc_state(dev_priv, DC_STATE_EN_UPTO_DC6);
/* Wa Display #1183: skl,kbl,cfl */
if (IS_GEN9_BC(dev_priv))
I915_WRITE(GEN8_CHICKEN_DCPR_1, I915_READ(GEN8_CHICKEN_DCPR_1) |
SKL_SELECT_ALTERNATE_DC_EXIT);
gen9_set_dc_state(dev_priv, DC_STATE_EN_UPTO_DC6);
}
void skl_disable_dc6(struct drm_i915_private *dev_priv)
{
DRM_DEBUG_KMS("Disabling DC6\n");
/* Wa Display #1183: skl,kbl,cfl */
if (IS_GEN9_BC(dev_priv))
I915_WRITE(GEN8_CHICKEN_DCPR_1, I915_READ(GEN8_CHICKEN_DCPR_1) |
SKL_SELECT_ALTERNATE_DC_EXIT);
gen9_set_dc_state(dev_priv, DC_STATE_DISABLE);
}