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path: root/drivers/gpu/drm/i915/intel_modes.c
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2013-01-20drm/i915: Add "Automatic" mode for the "Broadcast RGB" propertyVille Syrjälä1-2/+3
Add a new "Automatic" mode to the "Broadcast RGB" range property. When selected the driver automagically selects between full range and limited range output. Based on CEA-861 [1] guidelines, limited range output is selected if the mode is a CEA mode, except 640x480. Otherwise full range output is used. Additionally DVI monitors should most likely default to full range always. As per DP1.2a [2] DisplayPort should always use full range for 18bpp, and otherwise will follow CEA-861 rules. NOTE: The default value for the property will now be "Automatic" so some people may be affected in case they're relying on the current full range default. [1] CEA-861-E - 5.1 Default Encoding Parameters [2] VESA DisplayPort Ver.1.2a - 5.1.1.1 Video Colorimetry v2: Use has_hdmi_sink to check if a HDMI monitor is present v3: Add information about relevant spec chapters Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-12-10drm/i915: Remove duplicate inclusion of drm/drm_edid.hSachin Kamat1-1/+0
drm/drm_edid.h was included twice. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-11-22drm/i915: drm_connector_property -> drm_object_propertyRob Clark1-2/+2
v2: Rebased. Signed-off-by: Rob Clark <rob@ti.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> (v1) [danvet: Pimp commit message a bit.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-10-22drm/i915: Do not free the passed EDID in intel_connector_update_modes()Jani Nikula1-2/+5
The caller, not intel_connector_update_modes(), should free the edid. This improves the reusability of intel_connector_update_modes(). Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-10-04Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds1-1/+0
Pull drm merge (part 1) from Dave Airlie: "So first of all my tree and uapi stuff has a conflict mess, its my fault as the nouveau stuff didn't hit -next as were trying to rebase regressions out of it before we merged. Highlights: - SH mobile modesetting driver and associated helpers - some DRM core documentation - i915 modesetting rework, haswell hdmi, haswell and vlv fixes, write combined pte writing, ilk rc6 support, - nouveau: major driver rework into a hw core driver, makes features like SLI a lot saner to implement, - psb: add eDP/DP support for Cedarview - radeon: 2 layer page tables, async VM pte updates, better PLL selection for > 2 screens, better ACPI interactions The rest is general grab bag of fixes. So why part 1? well I have the exynos pull req which came in a bit late but was waiting for me to do something they shouldn't have and it looks fairly safe, and David Howells has some more header cleanups he'd like me to pull, that seem like a good idea, but I'd like to get this merge out of the way so -next dosen't get blocked." Tons of conflicts mostly due to silly include line changes, but mostly mindless. A few other small semantic conflicts too, noted from Dave's pre-merged branch. * 'drm-next' of git://people.freedesktop.org/~airlied/linux: (447 commits) drm/nv98/crypt: fix fuc build with latest envyas drm/nouveau/devinit: fixup various issues with subdev ctor/init ordering drm/nv41/vm: fix and enable use of "real" pciegart drm/nv44/vm: fix and enable use of "real" pciegart drm/nv04/dmaobj: fixup vm target handling in preparation for nv4x pcie drm/nouveau: store supported dma mask in vmmgr drm/nvc0/ibus: initial implementation of subdev drm/nouveau/therm: add support for fan-control modes drm/nouveau/hwmon: rename pwm0* to pmw1* to follow hwmon's rules drm/nouveau/therm: calculate the pwm divisor on nv50+ drm/nouveau/fan: rewrite the fan tachometer driver to get more precision, faster drm/nouveau/therm: move thermal-related functions to the therm subdev drm/nouveau/bios: parse the pwm divisor from the perf table drm/nouveau/therm: use the EXTDEV table to detect i2c monitoring devices drm/nouveau/therm: rework thermal table parsing drm/nouveau/gpio: expose the PWM/TOGGLE parameter found in the gpio vbios table drm/nouveau: fix pm initialization order drm/nouveau/bios: check that fixed tvdac gpio data is valid before using it drm/nouveau: log channel debug/error messages from client object rather than drm client drm/nouveau: have drm debugging macros build on top of core macros ...
2012-10-02UAPI: (Scripted) Convert #include "..." to #include <path/...> in drivers/gpu/David Howells1-2/+2
Convert #include "..." to #include <path/...> in drivers/gpu/. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Dave Airlie <airlied@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com>
2012-08-27Merge branch 'master' of ↵Dave Airlie1-8/+21
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into drm-next There was some merge conflicts in -next and they weren't so pretty, so backmerge now to avoid them. Conflicts: drivers/gpu/drm/i915/i915_gem.c drivers/gpu/drm/i915/intel_modes.c
2012-08-24drm: remove the raw_edid field from struct drm_display_infoJani Nikula1-1/+0
Neither the drm core nor any of the drivers really need the raw_edid field of struct drm_display_info for anything. Instead of being useful, it creates confusion about who is responsible for freeing the memory it points to and setting the field to NULL afterwards, leading to memory leaks and dangling pointers. Remove the raw_edid field, and fix drivers as necessary. Reported-by: Russell King <linux@arm.linux.org.uk> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Acked-by: Inki Dae <inki.dae@samsung.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-08-17drm/i915: extract connector update from intel_ddc_get_modes() for reuseJani Nikula1-9/+22
Refactor the connector update part of intel_ddc_get_modes() into a separate intel_connector_update_modes() function for reuse. No functional changes. Signed-off-by: Jani Nikula <jani.nikula@intel.com> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=45881 Tested-by: Alex Ferrando <alferpal@gmail.com> Cc: stable@vger.kernel.org (for 3.4+3.5) Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-07-20drm/i915: kill intel_ddc_probeDaniel Vetter1-28/+0
We have way too much lying hardware to rely on a simple "does someone answer on the ddc i2c address?" check. And now it's unused, so just kill it. Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-04-12Merge branch 'drm-intel-next' of ↵Dave Airlie1-1/+2
git://people.freedesktop.org/~danvet/drm-intel into drm-core-next Daniel Vetter wrote First pull request for 3.5-next, slightly large than usual because new things kept coming in since the last pull for 3.4. Highlights: - first batch of hw enablement for vlv (Jesse et al) and hsw (Eugeni). pci ids are not yet added, and there's still quite a few patches to merge (mostly modesetting). To make QA easier I've decided to merge this stuff in pieces. - loads of cleanups and prep patches spurred by the above. Especially vlv is a real frankenstein chip, but also hsw is stretching our driver's code design. Expect more to come in this area for 3.5. - more gmbus fixes, cleanups and improvements by Daniel Kurtz. Again, there are more patches needed (and some already queued up), but I wanted to split this a bit for better testing. - pwrite/pread rework and retuning. This series has been in the works for a few months already and a lot of i-g-t tests have been created for it. Now it's finally ready to be merged. Note that one patch in this series touches include/pagemap.h, that patch is acked-by akpm. - reduce mappable pressure and relocation throughput improvements from Chris. - mmap offset exhaustion mitigation by Chris Wilson. - a start at figuring out which codepaths in our messy dri1/ums+gem/kms driver we actually need to support by bailing out of unsupported case. The driver now refuses to load without kms on gen6+ and disallows a few ioctls that userspace never used in certain cases. More of this will definitely come. - More decoupling of global gtt and ppgtt. - Improved dual-link lvds detection by Takashi Iwai. - Shut up the compiler + plus fix the fallout (Ben) - Inverted panel brightness handling (mostly Acer manages to break things in this way). - Small fixlets and adjustements and some minor things to help debugging. Regression-wise QA reported quite a few issues on ivb, but all of them turned out to be hw stability issues which are already fixed in drm-intel-fixes (QA runs the nightly regression tests on -next alone, without -fixes automatically merged in). There's still one issue open on snb, it looks like occlusion query writes are not quite as cache coherent as we've expected. With some of the pwrite adjustements we can now reliably hit this. Kernel workaround for it is in the works." * 'drm-intel-next' of git://people.freedesktop.org/~danvet/drm-intel: (101 commits) drm/i915: VCS is not the last ring drm/i915: Add a dual link lvds quirk for MacBook Pro 8,2 drm/i915: make quirks more verbose drm/i915: dump the DMA fetch addr register on pre-gen6 drm/i915/sdvo: Include YRPB as an additional TV output type drm/i915: disallow gem init ioctl on ilk drm/i915: refuse to load on gen6+ without kms drm/i915: extract gt interrupt handler drm/i915: use render gen to switch ring irq functions drm/i915: rip out old HWSTAM missed irq WA for vlv drm/i915: open code gen6+ ring irqs drm/i915: ring irq cleanups drm/i915: add SFUSE_STRAP registers for digital port detection drm/i915: add WM_LINETIME registers drm/i915: add WRPLL clocks drm/i915: add LCPLL control registers drm/i915: add SSC offsets for SBI access drm/i915: add port clock selection support for HSW drm/i915: add S PLL control drm/i915: add PIXCLK_GATE register ... Conflicts: drivers/char/agp/intel-agp.h drivers/char/agp/intel-gtt.c drivers/gpu/drm/i915/i915_debugfs.c
2012-03-28drm/i915/intel_i2c: refactor using intel_gmbus_get_adapterDaniel Kurtz1-1/+2
Instead of letting other modules directly access the ->gmbus array, introduce intel_gmbus_get_adapter() for looking up an i2c_adapter for a given gmbus port identifier. This will enable later refactoring of the gmbus port list. Note: Before requesting an adapter for a given gmbus port number, the driver must first check its validity using i2c_intel_gmbus_is_port_valid(). If this check fails, a call to intel_gmbus_get_adapter() will WARN_ON and return NULL. This is relevant for parts of the driver that read a port from VBIOS, which might be improperly initialized and contain an invalid port. In these cases, the driver must fall back to using a safer default port. Signed-off-by: Daniel Kurtz <djkurtz@chromium.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-03-21drm/i915: use DDC_ADDR instead of hard-coding itMatt Turner1-2/+3
Signed-off-by: Matt Turner <mattst88@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-23Merge remote-tracking branch 'airlied/drm-next' into for-airliedDaniel Vetter1-19/+12
Manually resolve the conflict between the new enum drm property helpers in drm-next and the new "force-dvi" option that the "audio" output property gained in drm-intel-next. While resolving this conflict, switch the new drm_prop_enum_list to use the newly introduced enum defines instead of magic values. Conflicts: drivers/gpu/drm/i915/intel_modes.c Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-02-14drm/i915: add a "force-dvi" HDMI audio modeWu Fengguang1-1/+3
When HDMI-DVI converter is used, it's not only necessary to turn off audio, but also to disable HDMI_MODE_SELECT and video infoframe. Since the DVI mode is mainly tied to audio functionality from end user POV, add a new "force-dvi" audio mode: xrandr --output HDMI1 --set audio force-dvi Note that most users won't need to set this and happily rely on the EDID based DVI auto detection. Reported-by: Andrea Arcangeli <aarcange@redhat.com> Signed-off-by: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-02-09drm: add convenience function to create an enum propertySascha Hauer1-17/+11
Creating an enum property is a common pattern, so create a convenience function for this and use it where appropriate. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-09-22drm/i915: pass ELD to HDMI/DP audio driverWu Fengguang1-0/+2
Add ELD support for Intel Eaglelake, IbexPeak/Ironlake, SandyBridge/CougarPoint and IvyBridge/PantherPoint chips. ELD (EDID-Like Data) describes to the HDMI/DP audio driver the audio capabilities of the plugged monitor. It's built and passed to audio driver in 2 steps: (1) at get_modes time, parse EDID and save ELD to drm_connector.eld[] (2) at mode_set time, write drm_connector.eld[] to the Transcoder's hw ELD buffer and set the ELD_valid bit to inform HDMI/DP audio driver This patch is tested OK on G45/HDMI, IbexPeak/HDMI and IvyBridge/HDMI+DP. Test scheme: plug in the HDMI/DP monitor, and run cat /proc/asound/card0/eld* to check if the monitor name, HDMI/DP type, etc. show up correctly. Minor imperfection: the GEN5_AUD_CNTL_ST/DIP_Port_Select field always reads 0 (reserved). Without knowing the port number, I worked it around by setting the ELD_valid bit for ALL the three ports. It's tested to not be a problem, because the audio driver will find invalid ELD data and hence rightfully abort, even when it sees the ELD_valid indicator. Thanks to Zhenyu and Pierre-Louis for a lot of valuable help and testing. CC: Zhao Yakui <yakui.zhao@intel.com> CC: Wang Zhenyu <zhenyu.z.wang@intel.com> CC: Jeremy Bush <contractfrombelow@gmail.com> CC: Christopher White <c.white@pulseforce.com> CC: Pierre-Louis Bossart <pierre-louis.bossart@intel.com> CC: Paul Menzel <paulepanter@users.sourceforge.net> Signed-off-by: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: Keith Packard <keithp@keithp.com>
2011-06-04drm/i915: Share the common force-audio property between connectorsChris Wilson1-0/+30
Make the audio property creation routine common and share the single property between the connectors. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Keith Packard <keithp@keithp.com> Signed-off-by: Keith Packard <keithp@keithp.com>
2011-02-22drm/i915: Add support for limited color range of broadcast outputsChris Wilson1-0/+30
In order to prevent "crushed blacks" on TVs, the range of the RGB output may be limited to 16-235. This used to be available through Xorg under the "Broadcast RGB" option, so reintroduce support for KMS. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=34543 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-09-18drm/i915: use GMBUS to manage i2c linksChris Wilson1-12/+4
Use the GMBUS interface rather than direct bit banging to grab the EDID over DDC (and for other forms of auxiliary communication with external display controllers). The hope is that this method will be much faster and more reliable than bit banging for fetching EDIDs from buggy monitors or through switches, though we still preserve the bit banging as a fallback in case GMBUS fails. Based on an original patch by Jesse Barnes. Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-09-09drm/i915: Rename intel_encoder->enc to base for consistencyChris Wilson1-2/+2
[Patch is slightly larger than is strictly necessary to fixup surrounding checkpatch.pl errors.] Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-04-20Merge remote branch 'anholt/drm-intel-next' of /home/airlied/kernel/drm-next ↵Dave Airlie1-10/+11
into drm-core-next * 'anholt/drm-intel-next' of /home/airlied/kernel/drm-next: (48 commits) agp/intel-gtt: kill previous_size assignments agp/intel-gtt: kill intel_i830_tlbflush agp/intel: split out gmch/gtt probe, part 1 agp/intel: kill mutli_gmch_chip agp/intel: uncoditionally reconfigure driver on resume agp/intel: split out the GTT support agp/intel: introduce intel-agp.h header file drm/i915: Don't touch PORT_HOTPLUG_EN in intel_dp_detect() drm/i915/pch: Use minimal number of FDI lanes (v2) drm/i915: Add the support of memory self-refresh on Ironlake drm/i915: Move Pineview CxSR and watermark code into update_wm hook. drm/i915: Only save/restore FBC on the platform that supports FBC drm/i915: Fix the incorrect argument for SDVO SET_TV_format command drm/i915: Add support of SDVO on Ibexpeak PCH drm/i915: Don't enable pipe/plane/VCO early (wait for DPMS on). drm/i915: do not read uninitialized ->dev_private Revert "drm/i915: Use a dmi quirk to skip a broken SDVO TV output." drm/i915: implement multifunction SDVO device support drm/i915: remove unused intel_pipe_get_connector() drm/i915: remove connector object in old output structure ...
2010-04-18Merge branch 'for-linus' of ↵Linus Torvalds1-11/+11
git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel: drm/i915: Ignore LVDS EDID when it is unavailabe or invalid drm/i915: Add no_lvds entry for the Clientron U800 drm/i915: Rename many remaining uses of "output" to encoder or connector. drm/i915: Rename intel_output to intel_encoder. agp/intel: intel_845_driver is an agp driver! drm/i915: introduce to_intel_bo helper drm/i915: Disable FBC on 915GM and 945GM.
2010-04-10drm/i915: change intel_ddc_get_modes() function parametersZhenyu Wang1-10/+11
This one replaces original param for intel_ddc_get_modes() with DRM connector and i2c bus adapter instead. With explicit params, we won't require that a single driver structure must hold connector and DDC bus reference, which ease the conversion to splitted encoder/ connector model. It also clears up for some cases that we would steal other DDC bus for mode probe, like VGA analog DDC probe for DVI-I. Also it fixed a bug in old DVI-I probe handling, that failed to restore origin analog GPIO port. Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com> Signed-off-by: Eric Anholt <eric@anholt.net>
2010-03-30include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo1-0/+1
implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-25drm/i915: Rename intel_output to intel_encoder.Eric Anholt1-11/+11
The intel_output naming is inherited from the UMS code, which had a structure of screen -> CRTC -> output. The DRM code has an additional notion of encoder/connector, so the structure is screen -> CRTC -> encoder -> connector. This is a useful structure for SDVO encoders which can support multiple connectors (each of which requires different programming in the one encoder and could be connected to different CRTCs), or for DVI-I, where multiple encoders feed into the connector for whether it's used for digital or analog. Most of our code is encoder-related, so transition it to talking about encoders before we start trying to distinguish connectors. This patch is produced by sed s/intel_output/intel_encoder/ over the driver. Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-19drm/i915: Change I2C api to pass around i2c_adaptersKeith Packard1-8/+6
The existing API passed around intel_i2c_chan pointers, which are dependent on the i2c bit-banging algo. This precluded the driver from using outputs which use a different algo. Switching to the more general i2c_adpater allows the driver to support non bit-banging DDC. This also required moving the slave address into the output private structures. Signed-off-by: Keith Packard <keithp@keithp.com>
2009-05-15drm/i915: workaround IGD i2c bus issue in kernel side (v2)Shaohua Li1-0/+6
In IGD, DPCUNIT_CLOCK_GATE_DISABLE bit should be set, otherwise i2c access will be wrong. v2: Disable CLOCK_GATE_DISABLE bit after bit bashing as suggested by Eric. Signed-off-by: Shaohua Li <shaohua.li@intel.com> Signed-off-by: Eric Anholt <eric@anholt.net>
2009-04-01drm/i915: avoid hanging on to a stale pointer to raw_edid.Ma Ling1-0/+1
drm_get_edid will store edid into raw_edid, so when freeing edid memory, at the same time clean raw_edid pointer. Signed-off-by: Ma Ling <ling.ma@intel.com> [anholt: Note that raw_edid is not currently used anywhere] Signed-off-by: Eric Anholt <eric@anholt.net>
2008-12-29DRM: i915: add mode setting supportJesse Barnes1-0/+83
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: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Eric Anholt <eric@anholt.net> Signed-off-by: Dave Airlie <airlied@redhat.com>