diff options
| author | Alan Cox <alan@linux.intel.com> | 2012-04-25 14:38:07 +0100 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2012-04-27 09:24:16 +0100 |
| commit | d235e64a4367ad3ff204309490c4325b4f89b25b (patch) | |
| tree | 33e84fdfc41628f78c5183f04e450d396c1cbc38 /drivers/gpu/drm/gma500/cdv_intel_crt.c | |
| parent | b60bfb6585bcda7bc7abd32ce9a14d4c8a6acc8e (diff) | |
cdv: continue synching up with updated reference code
In particular clean up the errata handling and correct the crtc masks. We do
this a bit differently using our device abstraction for neatness.
This doesn't address the ACPI opregion and hotplug plumbing, nor the IRQ related
changes that will need. It touches on backlight init but the full backlight
support is not in this change set.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/gma500/cdv_intel_crt.c')
| -rw-r--r-- | drivers/gpu/drm/gma500/cdv_intel_crt.c | 20 |
1 files changed, 7 insertions, 13 deletions
diff --git a/drivers/gpu/drm/gma500/cdv_intel_crt.c b/drivers/gpu/drm/gma500/cdv_intel_crt.c index 1a82843b157b..187422018601 100644 --- a/drivers/gpu/drm/gma500/cdv_intel_crt.c +++ b/drivers/gpu/drm/gma500/cdv_intel_crt.c @@ -78,9 +78,6 @@ static int cdv_intel_crt_mode_valid(struct drm_connector *connector, if (mode->clock > 355000) return MODE_CLOCK_HIGH; - if (mode->hdisplay > 1680 || mode->vdisplay > 1050) - return MODE_PANEL; - return MODE_OK; } @@ -148,13 +145,7 @@ static bool cdv_intel_crt_detect_hotplug(struct drm_connector *connector, struct drm_device *dev = connector->dev; u32 hotplug_en; int i, tries = 0, ret = false; - u32 adpa_orig; - - /* disable the DAC when doing the hotplug detection */ - - adpa_orig = REG_READ(ADPA); - - REG_WRITE(ADPA, adpa_orig & ~(ADPA_DAC_ENABLE)); + u32 orig; /* * On a CDV thep, CRT detect sequence need to be done twice @@ -162,7 +153,7 @@ static bool cdv_intel_crt_detect_hotplug(struct drm_connector *connector, */ tries = 2; - hotplug_en = REG_READ(PORT_HOTPLUG_EN); + orig = hotplug_en = REG_READ(PORT_HOTPLUG_EN); hotplug_en &= ~(CRT_HOTPLUG_DETECT_MASK); hotplug_en |= CRT_HOTPLUG_FORCE_DETECT; @@ -187,8 +178,11 @@ static bool cdv_intel_crt_detect_hotplug(struct drm_connector *connector, CRT_HOTPLUG_MONITOR_NONE) ret = true; - /* Restore the saved ADPA */ - REG_WRITE(ADPA, adpa_orig); + /* clear the interrupt we just generated, if any */ + REG_WRITE(PORT_HOTPLUG_STAT, CRT_HOTPLUG_INT_STATUS); + + /* and put the bits back */ + REG_WRITE(PORT_HOTPLUG_EN, orig); return ret; } |