In commit d2d9f232, the guard for a valid video mode was removed. This
caused the regression:

  kernel crash during kms graphic boot on Intel GM4500 platform
  https://bugzilla.redhat.com/show_bug.cgi?id=540218

This patches changes the logic slightly not to rely on a coupled
variable, but to just check whether the video_modes is valid before
dereferencing.
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Zhenyu Wang <zhenyu.z.wang@intel.com>
[ickle: Actually reference the correct bug report]
Acked-by: NZhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: NEric Anholt <eric@anholt.net>

Replace the DRM_DEBUG with DRM_DEBUG_KMS in output device code.
Signed-off-by: NZhao Yakui <yakui.zhao@intel.com>
Signed-off-by: NEric Anholt <eric@anholt.net>

As of 559ee21d the actual refresh rate
is returned by the function of drm_mode_vrefresh, so multiply the refresh
rate by 1000 in TV mode validation.

At the same time the error is expanded from 10 to 1000.
Signed-off-by: NZhao Yakui <yakui.zhao@intel.com>
Signed-off-by: NEric Anholt <eric@anholt.net>

eDP is exclusive connector too, and add missing crtc_mask
setting for TV.

This fixes

	http://bugzilla.kernel.org/show_bug.cgi?id=14139Signed-off-by: NZhenyu Wang <zhenyuw@linux.intel.com>
Reported-and-tested-by: NCarlos R. Mafra <crmafra2@gmail.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

For integrated TV there are 3 connector types: S-VIDEO, Composite and
Component(YprPb). Those tv formats whose component flag is true should
be assigned to Component connector, others are for S-VIDEO and Composite.
The patch intends to find appropriate tv format for each connector.
In such case it will return the correct modeline to user space. Otherwise
it will return the incorrect modeline when S-video/composite is connected.
Signed-off-by: NMa Ling <ling.ma@intel.com>
reviewed-by: NZhao Yakui <yakui.zhao@intel.com>
Signed-off-by: NEric Anholt <eric@anholt.net>

Based on Bspec each encoder has different sharing pipe property,
i.e. Integrated or SDVO TV both will occupy one pipe exclusively,
and sdvo-non-tv and crt are allowed to share one. The patch moves
sharing judgment into differnet output functions, and sets the right
clone bit.

This fixes both HDMI outputs choosing the same pipe.

https://bugs.freedesktop.org/show_bug.cgi?id=22247Signed-off-by: NMa Ling <ling.ma@intel.com>
Reviewed-by : Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: NZhao Yakui <yakui.zhao@intel.com>
Signed-off-by: NEric Anholt <eric@anholt.net>

In order to get best possible quality image we chose 640x480 for
NTSC, PAL and 480p, 1280x720 for 720p, 1920x1080 for 1080i/p
TV format respectively.
Signed-off-by: NMa Ling <ling.ma@intel.com>
Signed-off-by: NEric Anholt <eric@anholt.net>

We used load_detect_temp flag to determine whether to set tv to the test
mode. However if the TV already has a mode set, we still need to set the
test mode to determine connection.  This results in blinking, but there is
no other reliable way to determine TV connection.

freedesktop.org bug #22035
Signed-off-by: NMa Ling <ling.ma@intel.com>
Signed-off-by: NEric Anholt <eric@anholt.net>

It hasn't been used in ages, and having the user tell your how much
memory is being freed at free time is a recipe for disaster even if it
was ever used.
Signed-off-by: NEric Anholt <eric@anholt.net>

We detect TV connect status by setting DAC voltage level override
values as 0.7 voltage for DAC_A/B/C. The corresponding 2-bits shold be 0x2,
In order correctly to set last bit as 0, at first we must clean it.

It fixed freedesktop.org bug #21204
Signed-off-by: NMa Ling <ling.ma@intel.com>
Signed-off-by: NEric Anholt <eric@anholt.net>

Making the drm_crtc.c code recognize the DPMS property and invoke the
connector->dpms function doesn't remove any capability from the driver while
reducing code duplication.

That just highlighted the problem with the existing DPMS functions which
could turn off the connector, but failed to turn off any relevant crtcs. The
new drm_helper_connector_dpms function manages all of that, using the
drm_helper-specific crtc and encoder dpms functions, automatically computing
the appropriate DPMS level for each object in the system.

This fixes the current troubles in the i915 driver which left PLLs, pipes
and planes running while in DPMS_OFF mode or even while they were unused.
Signed-off-by: NKeith Packard <keithp@keithp.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Only set TV DAC in property change seems doesn't work, we have to
setup whole crtc pipe which assigned to TV alone.
Signed-off-by: NZhenyu Wang <zhenyu.z.wang@intel.com>
[anholt: Note that this should also fix the oops at startup with new 2D]
Signed-off-by: NEric Anholt <eric@anholt.net>

If there's no real property change, don't need to set TV mode again.
Signed-off-by: NZhenyu Wang <zhenyu.z.wang@intel.com>
[anholt: checkpatch.pl fix]
Signed-off-by: NEric Anholt <eric@anholt.net>

Check that the encoder has a real enabled crtc for TV detect, and fix
missing TV type setting after detect.
Signed-off-by: NZhenyu Wang <zhenyu.z.wang@intel.com>
Signed-off-by: NEric Anholt <eric@anholt.net>

Fix TV control save register for untouched bits, and color
knobs different definition for 945 and 965 chips.
Signed-off-by: NZhenyu Wang <zhenyu.z.wang@intel.com>
Signed-off-by: NEric Anholt <eric@anholt.net>

The get_modes hook must return the number of modes added.  This also fixes
TV mode's clock calculation int overflow issue, and use 0.01 precision for
mode refresh validation.
Signed-off-by: NZhenyu Wang <zhenyu.z.wang@intel.com>
Signed-off-by: NEric Anholt <eric@anholt.net>

This covers at least:
TV: subcarrier fix for NTSC and PAL
TV: fix timing parameters for PAL, 480p, 1080i
Signed-off-by: NZhenyu Wang <zhenyu.z.wang@intel.com>
Signed-off-by: NEric Anholt <eric@anholt.net>

The C99 specification states in section 6.11.5:

The placement of a storage-class specifier other than at the beginning
of the declaration specifiers in a declaration is an obsolescent
feature.
Signed-off-by: NTobias Klauser <tklauser@distanz.ch>
Signed-off-by: NEric Anholt <eric@anholt.net>
Signed-off-by: NDave Airlie <airlied@linux.ie>

Signed-off-by: NHannes Eder <hannes@hanneseder.net>
Signed-off-by: NEric Anholt <eric@anholt.net>
Signed-off-by: NDave Airlie <airlied@linux.ie>

This commit adds i915 driver support for the DRM mode setting APIs.
Currently, VGA, LVDS, SDVO DVI & VGA, TV and DVO LVDS outputs are
supported.  HDMI, DisplayPort and additional SDVO output support will
follow.

Support for the mode setting code is controlled by the new 'modeset'
module option.  A new config option, CONFIG_DRM_I915_KMS controls the
default behavior, and whether a PCI ID list is built into the module for
use by user level module utilities.

Note that if mode setting is enabled, user level drivers that access
display registers directly or that don't use the kernel graphics memory
manager will likely corrupt kernel graphics memory, disrupt output
configuration (possibly leading to hangs and/or blank displays), and
prevent panic/oops messages from appearing.  So use caution when
enabling this code; be sure your user level code supports the new
interfaces.

A new SysRq key, 'g', provides emergency support for switching back to
the kernel's framebuffer console; which is useful for testing.

Co-authors: Dave Airlie <airlied@linux.ie>, Hong Liu <hong.liu@intel.com>
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: NEric Anholt <eric@anholt.net>
Signed-off-by: NDave Airlie <airlied@redhat.com>