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drm/i915: Precompute/readout/check CHV CGM mode

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Let's precompute the CGM mode for CHV. And naturally we
also read it out and check it.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190218193137.22914-3-ville.syrjala@linux.intel.com
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
This commit is contained in:
Ville Syrjälä
2019-02-18 21:31:32 +02:00
parent a1f1e61bfb
commit 9fdfb8e730
3 changed files with 35 additions and 10 deletions
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8
drivers/gpu/drm/i915/intel_display.c
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@@ -8216,6 +8216,9 @@ static bool i9xx_get_pipe_config(struct intel_crtc *crtc,
pipe_config->gamma_mode = (tmp & PIPECONF_GAMMA_MODE_MASK_I9XX) >>
PIPECONF_GAMMA_MODE_SHIFT;
if (IS_CHERRYVIEW(dev_priv))
pipe_config->cgm_mode = I915_READ(CGM_PIPE_MODE(crtc->pipe));
i9xx_get_pipe_color_config(pipe_config);
if (INTEL_GEN(dev_priv) < 4)
@@ -12238,7 +12241,10 @@ intel_pipe_config_compare(struct drm_i915_private *dev_priv,
PIPE_CONF_CHECK_CLOCK_FUZZY(pixel_rate);
PIPE_CONF_CHECK_X(gamma_mode);
PIPE_CONF_CHECK_X(csc_mode);
if (IS_CHERRYVIEW(dev_priv))
PIPE_CONF_CHECK_X(cgm_mode);
else
PIPE_CONF_CHECK_X(csc_mode);
PIPE_CONF_CHECK_BOOL(gamma_enable);
PIPE_CONF_CHECK_BOOL(csc_enable);
}