diff options
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c b/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c index b102692a659d..9775f33d1aac 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c +++ b/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c @@ -25,6 +25,59 @@ #include "intel_display_types.h" #include "intel_dp_aux_backlight.h" +/* + * DP AUX registers for Intel's proprietary HDR backlight interface. We define + * them here since we'll likely be the only driver to ever use these. + */ +#define INTEL_EDP_HDR_TCON_CAP0 0x340 + +#define INTEL_EDP_HDR_TCON_CAP1 0x341 +# define INTEL_EDP_HDR_TCON_2084_DECODE_CAP BIT(0) +# define INTEL_EDP_HDR_TCON_2020_GAMUT_CAP BIT(1) +# define INTEL_EDP_HDR_TCON_TONE_MAPPING_CAP BIT(2) +# define INTEL_EDP_HDR_TCON_SEGMENTED_BACKLIGHT_CAP BIT(3) +# define INTEL_EDP_HDR_TCON_BRIGHTNESS_NITS_CAP BIT(4) +# define INTEL_EDP_HDR_TCON_OPTIMIZATION_CAP BIT(5) +# define INTEL_EDP_HDR_TCON_SDP_COLORIMETRY_CAP BIT(6) +# define INTEL_EDP_HDR_TCON_SRGB_TO_PANEL_GAMUT_CONVERSION_CAP BIT(7) + +#define INTEL_EDP_HDR_TCON_CAP2 0x342 +# define INTEL_EDP_SDR_TCON_BRIGHTNESS_AUX_CAP BIT(0) + +#define INTEL_EDP_HDR_TCON_CAP3 0x343 + +#define INTEL_EDP_HDR_GETSET_CTRL_PARAMS 0x344 +# define INTEL_EDP_HDR_TCON_2084_DECODE_ENABLE BIT(0) +# define INTEL_EDP_HDR_TCON_2020_GAMUT_ENABLE BIT(1) +# define INTEL_EDP_HDR_TCON_TONE_MAPPING_ENABLE BIT(2) /* Pre-TGL+ */ +# define INTEL_EDP_HDR_TCON_SEGMENTED_BACKLIGHT_ENABLE BIT(3) +# define INTEL_EDP_HDR_TCON_BRIGHTNESS_AUX_ENABLE BIT(4) +# define INTEL_EDP_HDR_TCON_SRGB_TO_PANEL_GAMUT_ENABLE BIT(5) +/* Bit 6 is reserved */ +# define INTEL_EDP_HDR_TCON_SDP_COLORIMETRY_ENABLE BIT(7) + +#define INTEL_EDP_HDR_CONTENT_LUMINANCE 0x346 /* Pre-TGL+ */ +#define INTEL_EDP_HDR_PANEL_LUMINANCE_OVERRIDE 0x34A +#define INTEL_EDP_SDR_LUMINANCE_LEVEL 0x352 +#define INTEL_EDP_BRIGHTNESS_NITS_LSB 0x354 +#define INTEL_EDP_BRIGHTNESS_NITS_MSB 0x355 +#define INTEL_EDP_BRIGHTNESS_DELAY_FRAMES 0x356 +#define INTEL_EDP_BRIGHTNESS_PER_FRAME_STEPS 0x357 + +#define INTEL_EDP_BRIGHTNESS_OPTIMIZATION_0 0x358 +# define INTEL_EDP_TCON_USAGE_MASK GENMASK(0, 3) +# define INTEL_EDP_TCON_USAGE_UNKNOWN 0x0 +# define INTEL_EDP_TCON_USAGE_DESKTOP 0x1 +# define INTEL_EDP_TCON_USAGE_FULL_SCREEN_MEDIA 0x2 +# define INTEL_EDP_TCON_USAGE_FULL_SCREEN_GAMING 0x3 +# define INTEL_EDP_TCON_POWER_MASK BIT(4) +# define INTEL_EDP_TCON_POWER_DC (0 << 4) +# define INTEL_EDP_TCON_POWER_AC (1 << 4) +# define INTEL_EDP_TCON_OPTIMIZATION_STRENGTH_MASK GENMASK(5, 7) + +#define INTEL_EDP_BRIGHTNESS_OPTIMIZATION_1 0x359 + +/* VESA backlight callbacks */ static void set_vesa_backlight_enable(struct intel_dp *intel_dp, bool enable) { struct drm_i915_private *i915 = dp_to_i915(intel_dp); |