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  1. 25 8月, 2017 6 次提交
  3. 23 12月, 2016 1 次提交
  5. 16 11月, 2016 1 次提交
  7. 14 11月, 2016 1 次提交
    • V
      drm/i915: Assume non-DP++ port if dvo_port is HDMI and there's no AUX ch specified in the VBT · 7a17995a
      由 Ville Syrjälä 提交于 
      My heuristic for detecting type 1 DVI DP++ adaptors based on the VBT
port information apparently didn't survive the reality of buggy VBTs.
In this particular case we have a machine with a natice HDMI port, but
the VBT tells us it's a DP++ port based on its capabilities.

The dvo_port information in VBT does claim that we're dealing with a
HDMI port though, but we have other machines which do the same even
when they actually have DP++ ports. So that piece of information alone
isn't sufficient to tell the two apart.

After staring at a bunch of VBTs from various machines, I have to
conclude that the only other semi-reliable clue we can use is the
presence of the AUX channel in the VBT. On this particular machine
AUX channel is specified as zero, whereas on some of the other machines
which listed the DP++ port as HDMI have a non-zero AUX channel.

I've also seen VBTs which have dvo_port a DP but have a zero AUX
channel. I believe those we need to treat as DP ports, so we'll limit
the AUX channel check to just the cases where dvo_port is HDMI.

If we encounter any more serious failures with this heuristic I think
we'll have to have to throw it out entirely. But that could mean that
there is a risk of type 1 DVI dongle users getting greeted by a
black screen, so I'd rather not go there unless absolutely necessary.

v2: Remove the duplicate PORT_A check (Daniel)
    Fix some typos in the commit message

Cc: Daniel Otero <daniel.otero@outlook.com>
Cc: stable@vger.kernel.org
Tested-by: NDaniel Otero <daniel.otero@outlook.com>
Fixes: d6199256 ("drm/i915: Determine DP++ type 1 DVI adaptor presence based on VBT")
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97994Signed-off-by: NVille Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1478884464-14251-1-git-send-email-ville.syrjala@linux.intel.comReviewed-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
      7a17995a
  9. 10 6月, 2016 1 次提交
  11. 02 6月, 2016 1 次提交
  13. 23 5月, 2016 1 次提交
  15. 09 5月, 2016 1 次提交
  17. 02 5月, 2016 1 次提交
  19. 06 4月, 2016 1 次提交
  21. 17 3月, 2016 1 次提交
  23. 12 1月, 2016 3 次提交
  25. 05 1月, 2016 2 次提交
  27. 22 12月, 2015 1 次提交
  29. 17 12月, 2015 1 次提交
  31. 16 12月, 2015 1 次提交
  33. 23 9月, 2015 1 次提交
    • V
      drm/i915: Ignore "digital output" and "not HDMI output" bits for eDP detection · 972e7d71
      由 Ville Syrjälä 提交于 
      Ignore DEVICE_TYPE_NOT_HDMI_OUTPUT and DEVICE_TYPE_DIGITAL_OUTPUT when
trying to determine the presence of eDP based on the VBT child device
type. Apparently a significant portion of VLV systems have these bits
set incorrectly, and so we currently fail to detect eDP on said systems.

This is based on an earlier patch [1] from Andreas Lampersperger.
Instead of ignoring the bits just on VLV as was done in the orignal
patch, we now ignore them for all platforms. We should still have
enough bits in there to avoid false positives (unless the VBT is totally
bonkers).

Quoting the orignal patch:
> When the i915.ko identify an eDP output on a valleyview
> board, it should be more slackly. The reason for that is,
> that BIOS DATA TABLES generated with intel BMP (Binary
> Modification Program) do not set bits for NOT_HDMI or
> DIGITAL_OUTPUT on the device type. Due to Adolfo
> Sanchez from Intel EMGD, this is not possible.
> To solve this problem and enable i915.ko on embedded
> vlv boards with eDP, we ignore this two bits.

[1] http://lists.freedesktop.org/archives/intel-gfx/2015-June/069416.html

Cc: Andreas Lampersperger <lampersperger.andreas@heidenhain.de>
Cc: "Sanchez, AdolfoX" <adolfox.sanchez@intel.com>
Signed-off-by: NVille Syrjälä <ville.syrjala@linux.intel.com>
Acked-by: NJani Nikula <jani.nikula@intel.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
      972e7d71
  35. 04 9月, 2015 1 次提交
  37. 31 8月, 2015 2 次提交
  39. 24 8月, 2015 1 次提交
    • D
      drm/i915: Allow parsing of variable size child device entries from VBT · e2d6cf7f
      由 David Weinehall 提交于 
      VBT version 196 increased the size of common_child_dev_config. The
parser code assumed that the size of this structure would not change.

The modified code now copies the amount needed based on the VBT version,
and emits a debug message if the VBT version is unknown (too new); since
the struct config block won't shrink in newer versions it should be
harmless to copy the maximum known size in such cases, so that's what we
do, but emitting the warning is probably sensible anyway.

In the longer run it might make sense to modify the parser code to use a
version/feature mapping, rather than hardcoding things like this, but
for now the variants are fairly manageable.

This fixes a regression introduced in

commit 75067dde
Author: Antti Koskipaa <antti.koskipaa@linux.intel.com>
Date:   Fri Jul 10 14:10:55 2015 +0300

    drm/i915: Per-DDI I_boost override

since that commit changed the child device config size without updating
the checks and memcpy.

v2: Stricter size checks

v3 by Jani:
- Keep the checks strict, and warnigns verbose, but keep going anyway.
- Take care to copy the max amount of child device config we can.
- Fix the messages.
Signed-off-by: NDavid Weinehall <david.weinehall@linux.intel.com>
Reviewed-by: NVille Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: NJani Nikula <jani.nikula@intel.com>
      e2d6cf7f
  41. 15 8月, 2015 1 次提交
  43. 21 7月, 2015 1 次提交
  45. 10 4月, 2015 1 次提交
    • V
      drm/i915: Fix the VBT child device parsing for BSW · 90e4f159
      由 Ville Syrjälä 提交于 
      Recent BSW VBT has a VBT child device size 37 bytes instead of the 33
bytes our code assumes. This means we fail to parse the VBT and thus
fail to detect eDP ports properly and just register them as DP ports
instead.

Fix it up by using the reported child device size from the VBT instead
of assuming it matches out struct defintions.

The latest spec I have shows that the child device size should be 36
bytes for rev >= 195, however on my BSW the size is actually 37 bytes.
And our current struct definition is 33 bytes.

Feels like the entire VBT parses would need to be rewritten to handle
changes in the layout better, but for now I've decided to do just the
bare minimum to get my eDP port back.

Cc: Vijay Purushothaman <vijay.a.purushothaman@linux.intel.com>
Signed-off-by: NVille Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: NDamien Lespiau <damien.lespiau@intel.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
      90e4f159
  47. 25 2月, 2015 1 次提交
  49. 07 1月, 2015 1 次提交
  51. 15 12月, 2014 1 次提交
    • D
      drm/i915: Parsing LFP brightness control from VBT · 371abae8
      由 Deepak M 提交于 
      LFP brighness control from the VBT block 43 indicates which
controller is used for brightness.
LFP1 brightness control method:
Bit 7-4 = This field controller number of the brightnes controller.
0 = Controller 0
1 = Controller 1
2 = Controller 2
3 = Controller 3
Others = Reserved
Bits 3-0 = This field specifies the brightness control pin to be used on the
platform.
0 = PMIC pin is used for brightness control
1 = LPSS PWM is used for brightness control
2 = Display DDI is used for brightness control
3 = CABC method to control brightness
Others = Reserved

Adding the above fields in dev_priv->vbt and corresponding changes in
parse_backlight()

v2: Jani's review comments addressed
	- Move PWM definitions to intel_bios.h
	- Moving vbt_version to intel_vbt_data
	- Rename brightness to bl_ctrl_data
	- Logging just control_pin instead of string
	- Avoid adding vbt_version in dev_priv
	- Since only DDI option is available as of now, let control pin DDI
	affect dev_priv->vbt.backlight.present

v3: Jani's review comments addressed
	- Drop control_pin
	- Use bdb->version
	- set controller to 0 instead of using control pin define
	- check controller bounds
	- remove superfluous changes in intel_parse_bios
Signed-off-by: NDeepak M <m.deepak@intel.com>
Signed-off-by: NVandana Kannan <vandana.kannan@intel.com>
Reviewed-by: NJani Nikula <jani.nikula@intel.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
      371abae8
  53. 05 12月, 2014 1 次提交
  55. 03 12月, 2014 1 次提交
  57. 19 9月, 2014 1 次提交
  59. 08 8月, 2014 1 次提交
  61. 05 6月, 2014 1 次提交
    • S
      drm/i915: Detect if MIPI panel based on VBT and initialize only if present · 3e6bd011
      由 Shobhit Kumar 提交于 
      It seems by default the VBT has MIPI configuration block as well. The
Generic driver will assume always MIPI if MIPI configuration block is found.
This is causing probelm when actually there is eDP. Fix this by looking
into general definition block which will have device configurations. From here
we can figure out what is the LFP type and initialize MIPI only if MIPI
is found.

v2: Addressed review comments by Damien
    - Moved PORT definitions to intel_bios.h and renamed as DVO_PORT_MIPIA
    - renamed is_mipi to has_mipi and moved definition as suggested
    - Check has_mipi inside parse_mipi and intel_dsi_init insted of outside

v3: Make has_mipi as a bitfield as suggested
Signed-off-by: NShobhit Kumar <shobhit.kumar@intel.com>
Reviewed-by: NDamien Lespiau <damien.lespiau@intel.com>
[danvet: fold in conditions to pack everything neatly below 80 chars.]
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
      3e6bd011