From 4073a4ee5c4a40015e2fa133e77e3f9d692faf09 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Fri, 25 Sep 2020 16:16:52 +0300 Subject: [PATCH] drm/i915: Reset glk degamma index after programming/readout MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20200925131656.10022-6-ville.syrjala@linux.intel.com --- drivers/gpu/drm/i915/display/intel_color.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) 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) -- GitLab