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drm/i915/lvds: separate border enable readout from panel fitter

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The LVDS border enable is independent from the panel fitter. Move the
readout of the "border bits" from i9xx_get_pfit_config() to
intel_lvds_get_config(), where it will be read if LVDS is enabled even
if the panel fitter is not.

This fixes the state checker warning:

[drm:intel_pipe_config_compare [i915]] *ERROR* mismatch in
gmch_pfit.lvds_border_bits (expected 0x00008000, found 0x00000000)

Cc: Ville Syrjälä <[email protected]>
Cc: [email protected]
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=87632
Reviewed-by: Ville Syrjälä <[email protected]>
Tested-by: Sitsofe Wheeler <[email protected]>
Signed-off-by: Jani Nikula <[email protected]>
Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
(cherry picked from commit a0cbe6a3f1)
Signed-off-by: Jani Nikula <[email protected]>
This commit is contained in:
Jani Nikula 2016-04-29 15:34:02 +03:00
commit 8bea61f058
2 changed files with 4 additions and 3 deletions
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3
drivers/gpu/drm/i915/intel_display.c
View file

@ -7988,9 +7988,6 @@ static void i9xx_get_pfit_config(struct intel_crtc *crtc,
pipe_config->gmch_pfit.control = tmp;
pipe_config->gmch_pfit.pgm_ratios = I915_READ(PFIT_PGM_RATIOS);
if (INTEL_INFO(dev)->gen < 5)
pipe_config->gmch_pfit.lvds_border_bits =
I915_READ(LVDS) & LVDS_BORDER_ENABLE;
}
static void vlv_crtc_clock_get(struct intel_crtc *crtc,

4
drivers/gpu/drm/i915/intel_lvds.c
View file

@ -123,6 +123,10 @@ static void intel_lvds_get_config(struct intel_encoder *encoder,
pipe_config->base.adjusted_mode.flags |= flags;
if (INTEL_INFO(dev)->gen < 5)
pipe_config->gmch_pfit.lvds_border_bits =
tmp & LVDS_BORDER_ENABLE;
/* gen2/3 store dither state in pfit control, needs to match */
if (INTEL_INFO(dev)->gen < 4) {
tmp = I915_READ(PFIT_CONTROL);