aboutsummaryrefslogtreecommitdiffstats
path: root/drivers
Commit message (Collapse)AuthorAgeFilesLines
* drm/radeon/kms: add support for streamout v7Marek Olšák2012-02-138-9/+407
| | | | | | | | | | | | | | | | | | | | v2: agd5f: add strmout CS checking, copy_dw register checking v3: agd5f: don't use cs_check_reg() for copy_dw checking as it will incorrectly patch the command stream for certain regs. v4: agd5f: add warning if safe reg check fails for copy_dw v5: agd5f: add stricter checking for 6xx/7xx v6: agd5f: add range checking for copy_dw on eg+, add sx_surface_sync to safe reg list for 7xx. v7: agd5f: add stricter checking for eg+ Signed-off-by: Marek Olšák <maraeo@gmail.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
* drm: Fix kcalloc parameters swappedAxel Lin2012-02-132-2/+2
| | | | | | | | | The first parameter should be "number of elements" and the second parameter should be "element size". Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
* drm/vmwgfx: Bump driver minorThomas Hellstrom2012-02-131-2/+2
| | | | | | | Bump driver minor to signal availability of the page-flip ioctl. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
* vmwgfx: Move function declaration to correct headerThomas Hellstrom2012-02-132-14/+6
| | | | | | Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Jakob Bornecrantz <jakob@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
* drm/vmwgfx: Treat out-of-range initial width and height as host errorsThomas Hellstrom2012-02-131-4/+14
| | | | | | | | | And assign the initial width and height to the minimum in that case. Strange values (-1) from these registers have been reported by users. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Jakob Bornecrantz <jakob@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
* vmwgfx: Pick up the initial size from the width and height regsJakob Bornecrantz2012-02-135-10/+40
| | | | | | Signed-off-by: Jakob Bornecrantz <jakob@vmware.com> Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
* vmwgfx: Add page flip supportJakob Bornecrantz2012-02-133-0/+106
| | | | | | Signed-off-by: Jakob Bornecrantz <jakob@vmware.com> Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
* vmwgfx: Pipe fence out of screen object dirty functionsJakob Bornecrantz2012-02-131-6/+15
| | | | | | Signed-off-by: Jakob Bornecrantz <jakob@vmware.com> Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
* vmwgfx: Make it possible to get fence from execbufJakob Bornecrantz2012-02-133-10/+18
| | | | | | Signed-off-by: Jakob Bornecrantz <jakob@vmware.com> Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
* vmwgfx: Clean up pending event references to struct drm_file objects on closeThomas Hellstrom2012-02-134-2/+73
| | | | | | | | | | | | Pending events may have stale pointer references to struct drm_file objects after a file has been closed, but before the event is supposed to be attached to the drm file. Remove such events on file close. Tested with "modetest". Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Jakob Bornecrantz <jakob@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
* vmwgfx: Rework fence event actionJakob Bornecrantz2012-02-132-118/+104
| | | | | | Signed-off-by: Jakob Bornecrantz <jakob@vmware.com> Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
* drm/modes: do not enforce an odd vtotal for interlaced modesDaniel Vetter2012-02-131-2/+0
| | | | | | | | | | | | | | | | | | | CEA actually specifies an interlaced mode with even vtotal and supplies a diagram showing how this is supposed to work. Note that interlaced modes with an even vtotal seem to be a fairly recent invention. All modelines lore I could dig up with googling says that vtotal for interlaced modes _needs_ to be odd. But the even modelines in CEA are not a spec-bug, there's a figure in CEA-861-E called "Figure 5 Special Interlaced Video Format Timing (Even Vtotal)" that explains how it's supposed to work. Furthermore intel Bspec explicitly mentions that both odd and even interlaced vtotal are supported (VTOTAL register in the south display engine of PCH split chips). Acked-by: Adam Jackson <ajax@redhat.com> Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
* drm: do not set fb_info->pixmap fieldsSascha Hauer2012-02-095-33/+5
| | | | | | | | | | | | The drm drivers set the fb_info->pixmap fields without setting fb_info->pixmap.addr. If this is not set the fb core will overwrite these all fb_info->pixmap fields anyway, so there is not much point in setting them in the first place. [airlied: dropped nvidiafb piece - not mine] Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Dave Airlie <airlied@redhat.com>
* drm: add convenience function to create an range propertySascha Hauer2012-02-097-121/+53
| | | | | | | | Creating a range 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>
* drm: add convenience function to create an enum propertySascha Hauer2012-02-094-109/+72
| | | | | | | | 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>
* Merge branch 'for-airlied' of git://people.freedesktop.org/~danvet/drm-intel ↵Dave Airlie2012-02-0714-518/+179
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | into drm-core-next * 'for-airlied' of git://people.freedesktop.org/~danvet/drm-intel: drm/i915: add a LLC feature flag in device description drm/i915: kill i915_mem.c drm/i915: Use kcalloc instead of kzalloc to allocate array drm/i915/dp: Check for AUXCH error before checking for success drm/i915/dp: Use auxch precharge value of 5 everywhere drm/i915/dp: Tweak auxch clock divider for PCH drm/i915: Remove a comment about PCH from the non-PCH path drm/i915: Fix assert_pch_hdmi_disabled to mention HDMI (not DP) drm/i915: Implement plane-disabled assertion for PCH too drivers: i915: Fix BLC PWM register setup drm/i915: Check that plane/pipe is disabled before removing the fb drm/i915: fix typo in function name drm/i915: split out pll divider code drm/i915: split 9xx refclk & sdvo tv code out agp/intel: Add pci id for hostbridge from has/qemu drm/i915: there is no pipe CxSR on ironlake drm/i915: Only look for matching clocks for LVDS downclock drm/i915: Silence _DSM errors
| * drm/i915: add a LLC feature flag in device descriptionEugeni Dodonov2012-01-175-2/+12
| | | | | | | | | | | | | | | | | | | | | | LLC is not SNB/IVB-specific, so we should check for it in a more generic way. Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Eric Anholt <eric@anholt.net> Reviewed-by: Kenneth Graunke <kenneth@whitecape.org> Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| * drm/i915: kill i915_mem.cDaniel Vetter2012-01-175-411/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some decent history digging indicates that this was to be used for the GLX_MESA_allocate_memory extension but never actually implemented for any released i915 userspace code. So just rip it out. v2: Fixup the Makefile. Acked-by: Dave Airlie <airlied@gmail.com> Cc: Keith Whitwell <keithw@vmware.com> Reviewed-by: Eric Anholt <eric@anholt.net> Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| * drm/i915: Use kcalloc instead of kzalloc to allocate arrayThomas Meyer2012-01-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | The advantage of kcalloc is, that will prevent integer overflows which could result from the multiplication of number of elements and size and it is also a bit nicer to read. The semantic patch that makes this change is available in https://lkml.org/lkml/2011/11/25/107 Signed-off-by: Thomas Meyer <thomas@m3y3r.de> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| * drm/i915/dp: Check for AUXCH error before checking for successAdam Jackson2012-01-171-0/+4
| | | | | | | | | | | | | | | | | | | | This is paranoid, but I am entirely willing to believe the hardware could come up with a condition where I get a status with both the 'done' and 'receive error' bits set. Signed-off-by: Adam Jackson <ajax@redhat.com> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| * drm/i915/dp: Use auxch precharge value of 5 everywhereAdam Jackson2012-01-171-6/+1
| | | | | | | | | | | | | | | | | | The default in the Sandybridge docs is 5, as on Ironlake, and I have no reason to believe 3 would work any better. Signed-off-by: Adam Jackson <ajax@redhat.com> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| * drm/i915/dp: Tweak auxch clock divider for PCHAdam Jackson2012-01-171-1/+1
| | | | | | | | | | | | | | | | Matches the advice in the Sandybridge documentation. Signed-off-by: Adam Jackson <ajax@redhat.com> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| * drm/i915: Remove a comment about PCH from the non-PCH pathAdam Jackson2012-01-171-2/+0
| | | | | | | | | | Signed-off-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| * drm/i915: Fix assert_pch_hdmi_disabled to mention HDMI (not DP)Adam Jackson2012-01-171-1/+1
| | | | | | | | | | Signed-off-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| * drm/i915: Implement plane-disabled assertion for PCH tooAdam Jackson2012-01-171-1/+7
| | | | | | | | | | Signed-off-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| * drivers: i915: Fix BLC PWM register setupSimon Que2012-01-171-2/+2
| | | | | | | | | | | | | | | | | | | | There is an error in i915_read_blc_pwm_ctl, where the register values are not being copied correctly. BLC_PWM_CTL and BLC_PWM_CTL2 are getting mixed up. This patch fixes that so that saveBLC_PWM_CTL2 and not saveBLC_PWM_CTL is copied to the BLC_PWM_CTL2 register. Signed-off-by: Simon Que <sque@chromium.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| * drm/i915: Check that plane/pipe is disabled before removing the fbChris Wilson2012-01-171-5/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Staring at an error state such as: PGTBL_ER: 0x00000400 Display B: Invalid tiling fence[0] = 05001001 valid, x-tiled, pitch: 512, start: 0x05000000, size: 1048576 Pinned [2]: 00000000 131072 0001 0001 00000000 P uncached 00020000 4096000 0041 0000 00000000 P uncached (name: 1) Plane [1]: CNTR: c0000000 # enabled | gamma STRIDE: 00001400 SIZE: 03ff04ff POS: 00000000 ADDR: 05000000 Suggests that we did not clear the DSPBCNTR prior to unpinning the framebuffer and reusing the GTT space. Impossible! Unless our DPMS bookkeeping ran afoul again... In the meantime add an assertion that the plane is decoupled from the framebuffer prior to release. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| * drm/i915: fix typo in function nameEugeni Dodonov2012-01-171-1/+1
| | | | | | | | | | | | | | | | Fix function name in comments, a left-over from when i965_reset was renamed to i915_reset. Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| * drm/i915: split out pll divider codeJesse Barnes2012-01-171-22/+40
| | | | | | | | | | | | | | | | | | | | This cleans up the mode set path a little further, making it easier to extend for future platforms. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> [danvet: shut up stupid gcc warning about potential use of un-initlized fp2] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| * drm/i915: split 9xx refclk & sdvo tv code outJesse Barnes2012-01-171-28/+46
| | | | | | | | | | | | | | Makes the mode set routine a little cleaner and easier to extend. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| * agp/intel: Add pci id for hostbridge from has/qemuBen Widawsky2012-01-171-0/+1
| | | | | | | | | | | | | | | | | | This is needed to run the simulator. Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Ben Widawsky <ben@bwidawsk.net> [danvet: added a comment in case people wonder what it's for.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| * drm/i915: there is no pipe CxSR on ironlakeEugeni Dodonov2012-01-171-1/+1
| | | | | | | | | | | | | | | | | | | | After checking the specs and discussing with Jesse, turns out CxSR is not available on Ironlake and gen5, and its advertisement on the device description is misleading. Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| * drm/i915: Only look for matching clocks for LVDS downclockSean Paul2012-01-161-33/+41
| | | | | | | | | | | | | | | | | | | | | | | | This patch enforces that the downclock clock source is the same as the preferred clock source for LVDS. This fixes a bug where the driver chooses a downclock clock source with a different P than the preferred mode clock source. This happened even if the preferred clock source implemented an acceptable rate for the downclock. The result of this bug is that downclock is disabled. Signed-off-by: Sean Paul <seanpaul@chromium.org> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| * drm/i915: Silence _DSM errorsAdam Jackson2012-01-161-1/+1
| | | | | | | | | | | | | | | | | | | | <@ajax> mjg59: how concerned should i be about [drm:intel_dsm_pci_probe] *ERROR* failed to get supported _DSM functions ? <@mjg59> ajax: Entirely unconcerned Signed-off-by: Adam Jackson <ajax@redhat.com> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* | drm exynos: use drm_fb_helper_set_par directlySascha Hauer2012-02-031-27/+1
| | | | | | | | | | | | | | | | | | | | | | info->fix.visual already is correctly set from drm_fb_helper_fill_fix. info->fix.line_length is also set from drm_fb_helper_fill_fix, so drm_fb_helper_set_par directly instead of a custom exynos_drm_fbdev_set_par. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Tested-by: Inki Dae <inki.dae@samsung.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
* | drm crtc_helper: use list_for_each_entrySascha Hauer2012-02-031-6/+6
| | | | | | | | | | | | | | | | list_for_each_entry_safe is for walking a list safe against removal of entries. Here, no entries are removed, so use list_for_each_entry. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Dave Airlie <airlied@redhat.com>
* | drm crtc: Fix locking commentsSascha Hauer2012-02-031-6/+15
| | | | | | | | | | | | | | | | | | Several comments above functions say that the caller must hold the mode_config lock, but the functions take the lock themselves. Fix the comments. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Dave Airlie <airlied@redhat.com>
* | drm fb helper: remove unused variable crtc_idSascha Hauer2012-02-031-1/+0
| | | | | | | | | | | | | | | | crtc_id is set but never used, so remove it from struct drm_fb_helper_crtc. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Dave Airlie <airlied@redhat.com>
* | drm fb helper: remove unused variable conn_limitSascha Hauer2012-02-031-1/+1
| | | | | | | | | | | | | | | | conn_limit is set but never used. Remove it from struct drm_fb_helper. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Dave Airlie <airlied@redhat.com>
* | drm fb helper: use drm_helper_connector_dpms to do dpmsSascha Hauer2012-02-031-70/+10
| | | | | | | | | | | | | | | | drm_fb_helper_on|off currently manually searches for encoders to turn on/off. Make this simpler by using the helper function. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Dave Airlie <airlied@redhat.com>
* | drm: add proper return value for drm_mode_crtc_set_gamma_sizeSascha Hauer2012-02-031-3/+3
| | | | | | | | | | | | | | | | | | | | | | drm_mode_crtc_set_gamma_size returns boolean true for success and false for failure. This is not very kernel conform, so change it to return 0 for success and a propert error code otherwise. Noone checks the return value, so no users have to be fixed. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Dave Airlie <airlied@redhat.com>
* | drm drm_fb_helper: destroy modesSascha Hauer2012-02-031-1/+4
| | | | | | | | | | | | | | | | drm_setup_crtcs allocated modes using drm_mode_duplicate. Free them in drm_fb_helper_crtc_free. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Dave Airlie <airlied@redhat.com>
* | drm crtc: use drm_mode_destroy instead of kfree in drm_mode_removeSascha Hauer2012-02-031-1/+1
| | | | | | | | | | | | | | | | | | Modes are created using drm_mode_create which does a drm_mode_object_get, so use drm_mode_destroy in drm_mode_remove which does a drm_mode_object_put. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Dave Airlie <airlied@redhat.com>
* | drm/edid: drm modes have to be free with drm_mode_destroySascha Hauer2012-02-031-1/+1
| | | | | | | | | | | | | | to add the missing drm_mode_object_put for that mode. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Dave Airlie <airlied@redhat.com>
* | drm crtc: add forgotten idr cleanup functionsSascha Hauer2012-02-031-0/+3
| | | | | | | | | | | | | | | | drm_mode_config_init initializes the idr with idr_init, so add the missing counterparts in drm_mode_config_cleanup. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Dave Airlie <airlied@redhat.com>
* | drm/radeon/kms: add r1xx/r2xx CS support for tiled texturesAlex Deucher2012-02-032-2/+22
| | | | | | | | | | | | | | | | Not likely this will be implemented anytime soon, but for completeness... Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
* | drm/radeon/kms: add r1xx/r2xx support for CS_KEEP_TILING_FLAGSAlex Deucher2012-02-032-27/+36
| | | | | | | | | | | | | | | | Previous patch only updates r3xx+. It's not likely anyone will use this on r1xx/r2xx, but add it for consistency. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
* | drm: give up on edid retries when i2c bus is not respondingEugeni Dodonov2012-02-031-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This allows to avoid talking to a non-responding bus repeatedly until we finally timeout after 15 attempts. We can do this by catching the -ENXIO error, provided by i2c_algo_bit:bit_doAddress call. Within the bit_doAddress we already try 3 times to get the edid data, so if the routine tells us that bus is not responding, it is mostly pointless to keep re-trying those attempts over and over again until we reach final number of retries. This change should fix https://bugs.freedesktop.org/show_bug.cgi?id=41059 and improve overall edid detection timing by 10-30% in most cases, and by a much larger margin in case of phantom outputs (up to 30x in one worst case). Timing results for i915-powered machines for 'time xrandr' command: Machine 1: from 0.840s to 0.290s Machine 2: from 0.315s to 0.280s Machine 3: from +/- 4s to 0.184s Timing results for HD5770 with 'time xrandr' command: Machine 4: from 3.210s to 1.060s Reviewed-by: Chris Wilson <chris@hchris-wilson.co.uk> Reviewed-by: Keith Packard <keithp@keithp.com> Tested-by: Sean Finney <seanius@seanius.net> Tested-by: Soren Hansen <soren@linux2go.dk> Tested-by: Hernando Torque <sirius@sonnenkinder.org> Tested-by: Mike Lothian <mike@fireburn.co.uk> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=41059 Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
* | drm/radeon/kms/dce3+: add support for hw i2c using atomAlex Deucher2012-02-033-1/+161
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Starting with DCE3 hardware, atom contains a general purpose ProcessI2cChannelTransaction similar to ProcessAuxChannelTransaction. Add an implementation using the atom tables for DCE3+ hardware. This should be a little less CPU intensive than bit banging and may work better in certain cases. Enable it by setting the radeon hw_i2c module parameter to 1. E.g., radeon.hw_i2c=1 on the kernel command line in grub. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
* | drm/radeon/kms: Use the standard VESA timeout for DDC channelsJean Delvare2012-02-031-3/+1
| | | | | | | | | | | | | | | | | | | | | | The VESA specification suggests a 2.2 ms timeout on DDC channels. Use exactly that (as the i915 driver does) instead of hard-coding a jiffy count. Signed-off-by: Jean Delvare <jdelvare@suse.de> Reviewed-by: Keith Packard <keithp@keithp.com> Reviewed-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
generated by cgit (git 2.34.1) at 2025-02-28 20:32:11 +0000