linux/drivers/gpu/drm
Paulo Zanoni 0882dae983 drm/i915: fix DDI PLLs HW state readout code
Properly zero the refcounts and crtc->ddi_pll_set so the previous HW
state doesn't affect the result of reading the current HW state.

This fixes WARNs about WRPLL refcount if we have an HDMI monitor on
HSW and then suspend/resume.

Cc: stable@vger.kernel.org
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=64379
Tested-by: Qingshuai Tian <qingshuai.tian@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-01-08 15:54:09 +01:00
..
armada Merge branch 'drm-tda998x-3.12-fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-cubox into drm-fixes 2013-12-12 10:40:19 +10:00
ast
cirrus drm/cirrus: use drm_set_preferred_mode 2013-11-06 13:36:19 +10:00
exynos drm/exynos: release unhandled page flip events at postclose. 2013-12-02 22:49:20 +09:00
gma500 Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2013-11-15 14:19:54 +09:00
i2c drm/i2c: tda998x: set VIF for full range, underscanned display 2013-10-18 15:58:32 +01:00
i810
i915 drm/i915: fix DDI PLLs HW state readout code 2014-01-08 15:54:09 +01:00
mga
mgag200 drm/mgag200: drop pointless info print. 2013-11-08 15:49:43 +10:00
msm Merge branch 'msm-next' of git://people.freedesktop.org/~robclark/linux into drm-next 2013-11-10 18:27:31 +10:00
nouveau Merge branches 'acpi-pci-pm' and 'acpi-pci-hotplug' 2013-12-31 22:03:37 +01:00
omapdrm Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2013-11-15 14:19:54 +09:00
qxl gpu: fix qxl missing crc32_le 2013-12-23 10:32:58 +10:00
r128
radeon ACPI and power management fixes and new device IDs for 3.13-rc7 2014-01-03 13:44:41 -08:00
rcar-du
savage
shmobile drm: shmob_drm: Convert to clk_prepare/unprepare 2013-11-10 18:48:38 +10:00
sis
tdfx
tegra drm/tegra: return -EFAULT if copy_from_user() fails 2013-12-03 10:14:03 +01:00
tilcdc
ttm drm/ttm: Fix swapin regression 2013-12-23 10:33:07 +10:00
udl udl: fix issue with imported prime buffers 2013-12-05 09:23:38 +10:00
via
vmwgfx drm/vmwgfx: Add max surface memory param 2013-12-08 23:50:23 -08:00
ati_pcigart.c
drm_agpsupport.c
drm_auth.c
drm_buffer.c
drm_bufs.c
drm_cache.c
drm_context.c
drm_crtc_helper.c drm: eliminate bit-copy restoration of crtc 2013-11-06 14:27:51 +10:00
drm_crtc.c drm: Pretty print pixel format in drm_fb_get_bpp_depth() and format_check() 2013-11-06 13:29:34 +10:00
drm_debugfs.c drm: Make drm_debugfs_list const 2013-11-06 12:05:21 +10:00
drm_dma.c
drm_dp_helper.c
drm_drv.c Merge tag 'drm-intel-fixes-2013-11-07' of git://people.freedesktop.org/~danvet/drm-intel into drm-next 2013-11-08 16:34:39 +10:00
drm_edid_load.c
drm_edid.c drm/edid: add quirk for BPC in Samsung NP700G7A-S01PL notebook 2013-12-17 14:18:16 +10:00
drm_encoder_slave.c
drm_fb_cma_helper.c
drm_fb_helper.c Merge tag 'v3.12' into drm-intel-next 2013-11-04 16:28:52 +01:00
drm_flip_work.c kfifo API type safety 2013-11-15 09:32:23 +09:00
drm_fops.c Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2013-11-15 14:19:54 +09:00
drm_gem_cma_helper.c
drm_gem.c
drm_global.c
drm_hashtab.c
drm_info.c
drm_ioc32.c
drm_ioctl.c
drm_irq.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2013-11-15 16:47:22 -08:00
drm_lock.c
drm_memory.c
drm_mm.c
drm_modes.c drm: copy mode type in drm_mode_connector_list_update() 2013-10-23 14:21:12 +01:00
drm_pci.c drm: Pass pointers to virt_to_page() 2013-11-06 13:23:20 +10:00
drm_platform.c
drm_prime.c
drm_rect.c
drm_scatter.c
drm_stub.c drm: don't double-free on driver load error 2013-12-13 13:03:50 +10:00
drm_sysfs.c drm/sysfs: fix OOM verification 2013-11-28 14:35:23 +10:00
drm_trace_points.c
drm_trace.h
drm_usb.c
drm_vm.c drm: Pass pointers to virt_to_page() 2013-11-06 13:23:20 +10:00
drm_vma_manager.c
Kconfig drm/tegra: Changes for v3.13-rc1 2013-11-05 16:21:00 +10:00
Makefile drm/tegra: Changes for v3.13-rc1 2013-11-05 16:21:00 +10:00
README.drm

************************************************************
* For the very latest on DRI development, please see:      *
*     http://dri.freedesktop.org/                          *
************************************************************

The Direct Rendering Manager (drm) is a device-independent kernel-level
device driver that provides support for the XFree86 Direct Rendering
Infrastructure (DRI).

The DRM supports the Direct Rendering Infrastructure (DRI) in four major
ways:

    1. The DRM provides synchronized access to the graphics hardware via
       the use of an optimized two-tiered lock.

    2. The DRM enforces the DRI security policy for access to the graphics
       hardware by only allowing authenticated X11 clients access to
       restricted regions of memory.

    3. The DRM provides a generic DMA engine, complete with multiple
       queues and the ability to detect the need for an OpenGL context
       switch.

    4. The DRM is extensible via the use of small device-specific modules
       that rely extensively on the API exported by the DRM module.


Documentation on the DRI is available from:
    http://dri.freedesktop.org/wiki/Documentation
    http://sourceforge.net/project/showfiles.php?group_id=387
    http://dri.sourceforge.net/doc/

For specific information about kernel-level support, see:

    The Direct Rendering Manager, Kernel Support for the Direct Rendering
    Infrastructure
    http://dri.sourceforge.net/doc/drm_low_level.html

    Hardware Locking for the Direct Rendering Infrastructure
    http://dri.sourceforge.net/doc/hardware_locking_low_level.html

    A Security Analysis of the Direct Rendering Infrastructure
    http://dri.sourceforge.net/doc/security_low_level.html