Never mind. As usual the answer is right in front of my nose - the
other patch in this series. I was only focusing on the second patch not
the first one. D'Oh!
-Mike
On Mon, 18 Apr 2011, Mike Isely wrote:
>
> Chris:
>
> Can you specify the commit this patch was built on top of? I'm still
> not totally fluent in git. I did get it to apply cleanly but my build
> attempt failed due to errors which suggest stuff is needed from other
> commits missing from my build branch :-( For example,
> "drm_mode_parse_command_line_for_connector()" is missing.
>
> -Mike
>
>
> On Sun, 17 Apr 2011, Chris Wilson wrote:
>
> > If we can find no other reliable source of panel configuration data,
> > turn to the user and see if they have a passed a mode line (ala video=)
> > through the i915.lvds_fixed_mode= string.
> >
> > Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
> > Cc: Oliver Seitz <i...@vtnd.de>
> > Cc: Mike Isely <is...@isely.net>
> > Cc: Dave Airlied <airl...@linux.ie>
> > ---
> > drivers/gpu/drm/i915/i915_drv.c | 4 +++
> > drivers/gpu/drm/i915/i915_drv.h | 3 +-
> > drivers/gpu/drm/i915/intel_lvds.c | 46
> > ++++++++++++++++++++++++++++---------
> > 3 files changed, 41 insertions(+), 12 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/i915/i915_drv.c
> > b/drivers/gpu/drm/i915/i915_drv.c
> > index 16a2532..4a618f6 100644
> > --- a/drivers/gpu/drm/i915/i915_drv.c
> > +++ b/drivers/gpu/drm/i915/i915_drv.c
> > @@ -67,6 +67,10 @@ module_param_named(vbt_sdvo_panel_type,
> > i915_vbt_sdvo_panel_type, int, 0600);
> > static bool i915_try_reset = true;
> > module_param_named(reset, i915_try_reset, bool, 0600);
> >
> > +char *i915_lvds_fixed_mode;
> > +module_param_named(lvds_fixed_mode, i915_lvds_fixed_mode, charp, 0600);
> > +MODULE_PARM_DESC(lvds_fixed_mode, "specify the mode line for the LVDS
> > panel to be used in the absence of any configuration data, using the video=
> > format");
> > +
> > unsigned int i915_lvds_24bit = 0;
> > module_param_named(lvds_24bit, i915_lvds_24bit, int, 0600);
> > MODULE_PARM_DESC(lvds_24bit, "LVDS 24 bit pixel format: 0=leave untouched
> > (default), 1=24 bit '2.0' format, 2=24 bit '2.1' format, 3=force older 18
> > bit format");
> > diff --git a/drivers/gpu/drm/i915/i915_drv.h
> > b/drivers/gpu/drm/i915/i915_drv.h
> > index 2112af3..c6cc4e2 100644
> > --- a/drivers/gpu/drm/i915/i915_drv.h
> > +++ b/drivers/gpu/drm/i915/i915_drv.h
> > @@ -977,12 +977,13 @@ extern unsigned int i915_fbpercrtc;
> > extern int i915_panel_ignore_lid;
> > extern unsigned int i915_powersave;
> > extern unsigned int i915_semaphores;
> > +extern char *i915_lvds_fixed_mode;
> > extern unsigned int i915_lvds_channels;
> > +extern unsigned int i915_lvds_24bit;
> > extern unsigned int i915_lvds_downclock;
> > extern unsigned int i915_panel_use_ssc;
> > extern int i915_vbt_sdvo_panel_type;
> > extern unsigned int i915_enable_rc6;
> > -extern unsigned int i915_lvds_24bit;
> >
> > extern int i915_suspend(struct drm_device *dev, pm_message_t state);
> > extern int i915_resume(struct drm_device *dev);
> > diff --git a/drivers/gpu/drm/i915/intel_lvds.c
> > b/drivers/gpu/drm/i915/intel_lvds.c
> > index a562bd2..32b86ea 100644
> > --- a/drivers/gpu/drm/i915/intel_lvds.c
> > +++ b/drivers/gpu/drm/i915/intel_lvds.c
> > @@ -924,6 +924,11 @@ bool intel_lvds_init(struct drm_device *dev)
> > * if none of the above, no panel
> > * 4) make sure lid is open
> > * if closed, act like it's not there for now
> > + *
> > + * Finally, we allow the user to specify his own mode. We do this
> > + * last because we want to prevent the user from damaging their
> > + * hardware with a dangerous modeline. Though we may eventually
> > + * be forced to add an override for truly broken machines.
> > */
> >
> > /*
> > @@ -982,19 +987,38 @@ bool intel_lvds_init(struct drm_device *dev)
> > */
> >
> > /* Ironlake: FIXME if still fail, not try pipe mode now */
> > - if (HAS_PCH_SPLIT(dev))
> > - goto failed;
> > + if (!HAS_PCH_SPLIT(dev)) {
> > + lvds = I915_READ(LVDS);
> > + pipe = (lvds & LVDS_PIPEB_SELECT) ? 1 : 0;
> > + crtc = intel_get_crtc_for_pipe(dev, pipe);
> > +
> > + if (crtc && (lvds & LVDS_PORT_EN)) {
> > + intel_lvds->fixed_mode = intel_crtc_mode_get(dev, crtc);
> > + if (intel_lvds->fixed_mode) {
> > + intel_lvds->fixed_mode->type |=
> > + DRM_MODE_TYPE_PREFERRED;
> > + goto out;
> > + }
> > + }
> > + }
> >
> > - lvds = I915_READ(LVDS);
> > - pipe = (lvds & LVDS_PIPEB_SELECT) ? 1 : 0;
> > - crtc = intel_get_crtc_for_pipe(dev, pipe);
> > + /* No panel cnnfiguration data, and nothing already driving the panel
> > + * at its preferred mode. Check to see if the user provided this vital
> > + * bit of information...
> > + */
> > + if (i915_lvds_fixed_mode) {
> > + struct drm_cmdline_mode mode;
> >
> > - if (crtc && (lvds & LVDS_PORT_EN)) {
> > - intel_lvds->fixed_mode = intel_crtc_mode_get(dev, crtc);
> > - if (intel_lvds->fixed_mode) {
> > - intel_lvds->fixed_mode->type |=
> > - DRM_MODE_TYPE_PREFERRED;
> > - goto out;
> > + if
> > (drm_mode_parse_command_line_for_connector(i915_lvds_fixed_mode,
> > + connector,
> > + &mode)) {
> > + intel_lvds->fixed_mode =
> > + drm_mode_create_from_cmdline_mode(dev, &mode);
> > + if (intel_lvds->fixed_mode) {
> > + intel_lvds->fixed_mode->type |=
> > + DRM_MODE_TYPE_PREFERRED;
> > + goto out;
> > + }
> > }
> > }
> >
> >
>
>
--
Mike Isely
isely @ isely (dot) net
PGP: 03 54 43 4D 75 E5 CC 92 71 16 01 E2 B5 F5 C1 E8
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