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authorVille Syrjälä <ville.syrjala@linux.intel.com>2020-09-25 16:16:52 +0300
committerVille Syrjälä <ville.syrjala@linux.intel.com>2020-09-28 18:09:41 +0300
commit4073a4ee5c4a40015e2fa133e77e3f9d692faf09 (patch)
treeb451fcd6a8cdadf8c3cb1e11b5fdc23e77736a69 /drivers
parente0122138c24edf51a0225dcb566e3ead298d6ff5 (diff)
drm/i915: Reset glk degamma index after programming/readout
Just for some extra consistency let's reset the glk degamma LUT index back to 0 after we're dong trawling the LUT. Reviewed-by: Uma Shankar <uma.shankar@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200925131656.10022-6-ville.syrjala@linux.intel.com
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpu/drm/i915/display/intel_color.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c
index 77c103a86a30..37a4fede7bc0 100644
--- a/drivers/gpu/drm/i915/display/intel_color.c
+++ b/drivers/gpu/drm/i915/display/intel_color.c
@@ -818,12 +818,14 @@ static void glk_load_degamma_lut(const struct intel_crtc_state *crtc_state)
* as compared to just 16 to achieve this.
*/
intel_de_write(dev_priv, PRE_CSC_GAMC_DATA(pipe),
- lut[i].green);
+ lut[i].green);
}
/* Clamp values > 1.0. */
while (i++ < 35)
intel_de_write(dev_priv, PRE_CSC_GAMC_DATA(pipe), 1 << 16);
+
+ intel_de_write(dev_priv, PRE_CSC_GAMC_INDEX(pipe), 0);
}
static void glk_load_degamma_lut_linear(const struct intel_crtc_state *crtc_state)
@@ -851,6 +853,8 @@ static void glk_load_degamma_lut_linear(const struct intel_crtc_state *crtc_stat
/* Clamp values > 1.0. */
while (i++ < 35)
intel_de_write(dev_priv, PRE_CSC_GAMC_DATA(pipe), 1 << 16);
+
+ intel_de_write(dev_priv, PRE_CSC_GAMC_INDEX(pipe), 0);
}
static void glk_load_luts(const struct intel_crtc_state *crtc_state)