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linux/drivers/gpu/drm/i915
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Zhao Yakui 6a304caf0b drm/i915: Read the response after issuing DDC bus switch command 
For some SDVO cards based on conexant chip, we can't read the EDID if
we don't read the response after issuing SDVO DDC bus switch
command.

From the SDVO spec once when another I2C transaction is finished after
completing the I2C transaction of issuing the bus switch command, it
will be switched back to the SDVO internal state again. So we can't
initiate a new I2C transaction to read the response after issuing the
DDC bus switch command. Instead we should issue DDC bus switch command
and read the response in the same I2C transaction.

https://bugs.freedesktop.org/show_bug.cgi?id=23842
https://bugs.freedesktop.org/show_bug.cgi?id=24458
https://bugs.freedesktop.org/show_bug.cgi?id=24522
https://bugs.freedesktop.org/show_bug.cgi?id=24282

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Tested-by: Sebastien Caty <sebastien.caty@mrnf.gouv.qc.ca>
Signed-off-by: Eric Anholt <eric@anholt.net>
2010-01-12 14:52:38 -08:00
..
dvo.h drm/i915: Change I2C api to pass around i2c_adapters 2009-06-18 15:53:57 -07:00
dvo_ch7xxx.c drm/i915: Replace DRM_DEBUG with DRM_DEBUG_KMS in DVO output code. 2009-11-05 14:47:12 -08:00
dvo_ch7017.c drm/i915: Replace DRM_DEBUG with DRM_DEBUG_KMS in DVO output code. 2009-11-05 14:47:12 -08:00
dvo_ivch.c drm/i915: Replace DRM_DEBUG with DRM_DEBUG_KMS in DVO output code. 2009-11-05 14:47:12 -08:00
dvo_sil164.c drm/i915: Replace DRM_DEBUG with DRM_DEBUG_KMS in DVO output code. 2009-11-05 14:47:12 -08:00
dvo_tfp410.c drm/i915: Replace DRM_DEBUG with DRM_DEBUG_KMS in DVO output code. 2009-11-05 14:47:12 -08:00
i915_debugfs.c drm/i915: remove full registers dump debug 2010-01-06 09:40:14 -08:00
i915_dma.c Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 2010-01-06 20:26:42 -08:00
i915_drv.c drm/i915: Fix resume regression on MSI Wind U100 w/o KMS 2010-01-12 14:30:06 -08:00
i915_drv.h drm/i915: Fix RC6 suspend/resume 2010-01-06 09:39:53 -08:00
i915_gem.c Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 2010-01-06 20:26:42 -08:00
i915_gem_debug.c drm/i915: Catch up to obj_priv->page_list rename in disabled debug code. 2009-06-22 20:19:39 -07:00
i915_gem_tiling.c drm/i915: execbuf2 support 2010-01-06 09:39:39 -08:00
i915_ioc32.c drm: convert drm_ioctl to unlocked_ioctl 2009-12-18 11:22:31 +10:00
i915_irq.c drm/i915: Reload hangcheck timer too for Ironlake 2009-12-17 11:17:38 -08:00
i915_mem.c drm: Remove memory debugging infrastructure. 2009-06-18 13:00:33 -07:00
i915_opregion.c drm/i915: Fix product names and #defines 2009-12-07 14:55:56 -08:00
i915_reg.h drm/i915: Enable/disable the dithering for LVDS based on VBT setting 2010-01-06 09:40:11 -08:00
i915_suspend.c drm/i915: Fix RC6 suspend/resume 2010-01-06 09:39:53 -08:00
i915_trace.h drm/i915: Enable irq to trace batch buffer completion. 2009-09-29 03:15:25 +01:00
i915_trace_points.c drm/i915: Add tracepoints 2009-09-23 01:05:21 +01:00
intel_bios.c drm/i915: Fix product names and #defines 2009-12-07 14:55:56 -08:00
intel_bios.h drm/i915: parse child device from VBT 2009-11-30 16:36:53 -08:00
intel_crt.c drm/i915: only enable hotplug for detected outputs 2009-12-16 14:00:05 -08:00
intel_display.c drm/i915: Fix Ironlake M/N/P ranges to match the spec 2010-01-07 10:26:45 -08:00
intel_dp.c drm/i915: Don't use the child device parsed from VBT to setup HDMI/DP 2010-01-12 14:40:03 -08:00
intel_drv.h drm/i915: restore render clock gating on resume 2009-12-08 06:32:51 -08:00
intel_dvo.c drm/i915: Set crtc/clone mask in different output devices 2009-08-24 17:01:33 -07:00
intel_fb.c Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 2009-12-10 21:56:47 -08:00
intel_hdmi.c drm/i915: Don't use the child device parsed from VBT to setup HDMI/DP 2010-01-12 14:40:03 -08:00
intel_i2c.c drm/i915: Fix product names and #defines 2009-12-07 14:55:56 -08:00
intel_lvds.c drm/i915: Add HP nx9020/SamsungSX20S to ACPI LID quirk list 2010-01-07 10:26:43 -08:00
intel_modes.c drm/i915: Change I2C api to pass around i2c_adapters 2009-06-18 15:53:57 -07:00
intel_overlay.c drm/i915: Fix product names and #defines 2009-12-07 14:55:56 -08:00
intel_sdvo.c drm/i915: Read the response after issuing DDC bus switch command 2010-01-12 14:52:38 -08:00
intel_sdvo_regs.h drm/i915: enable sdvo lvds scaling function. 2009-07-01 11:44:45 -07:00
intel_tv.c drm/i915: disable TV hotplug status check 2010-01-07 10:00:39 -08:00
Makefile Merge remote branch 'anholt/drm-intel-next' into drm-linus 2009-12-08 14:03:47 +10:00