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drm/i915: Introduce vfunc read_luts() to create hw lut 

In this patch, a vfunc read_luts() is introduced to create a hw lut
i.e. lut having values read from gamma/degamma registers which will
later be used to compare with sw lut to validate gamma/degamma lut values.

v3: -Rebase
v4: -Renamed intel_get_color_config to intel_color_get_config [Jani]
    -Wrapped get_color_config() [Jani]
v5: -Renamed intel_color_get_config() to intel_color_read_luts()
    -Renamed get_color_config to read_luts
v6: -Renamed intel_color_read_luts() back to intel_color_get_config()
     [Jani and Ville]

Signed-off-by: Swati Sharma <swati2.sharma@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1559123462-7343-2-git-send-email-swati2.sharma@intel.com
This commit is contained in:
Swati Sharma 2019-05-29 15:20:51 +05:30 committed by Jani Nikula
parent bcc8737ddc
commit 2740e81aad
3 changed files with 10 additions and 0 deletions
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1
drivers/gpu/drm/i915/i915_drv.h
View File

@ -340,6 +340,7 @@ struct drm_i915_display_funcs {
* involved with the same commit. * involved with the same commit.
*/ */
void (*load_luts)(const struct intel_crtc_state *crtc_state); void (*load_luts)(const struct intel_crtc_state *crtc_state);
void (*read_luts)(struct intel_crtc_state *crtc_state);
}; };
struct intel_csr { struct intel_csr {

8
drivers/gpu/drm/i915/intel_color.c
View File

@ -879,6 +879,14 @@ int intel_color_check(struct intel_crtc_state *crtc_state)
return dev_priv->display.color_check(crtc_state); return dev_priv->display.color_check(crtc_state);
} }
void intel_color_get_config(struct intel_crtc_state *crtc_state)
{
struct drm_i915_private *dev_priv = to_i915(crtc_state->base.crtc->dev);
if (dev_priv->display.read_luts)
dev_priv->display.read_luts(crtc_state);
}
static bool need_plane_update(struct intel_plane *plane, static bool need_plane_update(struct intel_plane *plane,
const struct intel_crtc_state *crtc_state) const struct intel_crtc_state *crtc_state)
{ {

1
drivers/gpu/drm/i915/intel_color.h
View File

@ -13,5 +13,6 @@ void intel_color_init(struct intel_crtc *crtc);
int intel_color_check(struct intel_crtc_state *crtc_state); int intel_color_check(struct intel_crtc_state *crtc_state);
void intel_color_commit(const struct intel_crtc_state *crtc_state); void intel_color_commit(const struct intel_crtc_state *crtc_state);
void intel_color_load_luts(const struct intel_crtc_state *crtc_state); void intel_color_load_luts(const struct intel_crtc_state *crtc_state);
void intel_color_get_config(struct intel_crtc_state *crtc_state);
#endif /* __INTEL_COLOR_H__ */ #endif /* __INTEL_COLOR_H__ */