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[2/2] drm/i915/bios: Define the "luminance and gamma" sub-struct of block 46

Message ID 20240605134756.17099-2-ville.syrjala@linux.intel.com (mailing list archive)
State New, archived
Headers show
Series [1/2] drm/i915/bios: Define block 46 chromaticity coordinates properly | expand

Commit Message

Ville Syrjala June 5, 2024, 1:47 p.m. UTC 
From: Ville Syrjälä <ville.syrjala@linux.intel.com>

Since BDB version 211 block 46 has included more luminance and
gamma related information. Define it fully. The data is semi-based
on DisplayID v2.0 apparently.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_vbt_defs.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

Comments

Jani Nikula June 6, 2024, 10:56 a.m. UTC | #1 
On Wed, 05 Jun 2024, Ville Syrjala <ville.syrjala@linux.intel.com> wrote:
> From: Ville Syrjälä <ville.syrjala@linux.intel.com>
>
> Since BDB version 211 block 46 has included more luminance and
> gamma related information. Define it fully. The data is semi-based
> on DisplayID v2.0 apparently.
>
> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>

Reviewed-by: Jani Nikula <jani.nikula@intel.com>

> ---
>  drivers/gpu/drm/i915/display/intel_vbt_defs.h | 12 ++++++++++++
>  1 file changed, 12 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_vbt_defs.h b/drivers/gpu/drm/i915/display/intel_vbt_defs.h
> index da8694771f69..1af8407e2081 100644
> --- a/drivers/gpu/drm/i915/display/intel_vbt_defs.h
> +++ b/drivers/gpu/drm/i915/display/intel_vbt_defs.h
> @@ -1395,8 +1395,20 @@ struct chromaticity {
>  	u8 white_y_hi;
>  } __packed;
>  
> +struct luminance_and_gamma {
> +	u8 luminance_enable:1;						/* 211+ */
> +	u8 gamma_enable:1;						/* 211+ */
> +	u8 rsvd:6;
> +
> +	u16 min_luminance;						/* 211+ */
> +	u16 max_luminance;						/* 211+ */
> +	u16 one_percent_max_luminance;					/* 211+ */
> +	u8 gamma;							/* 211+ */
> +} __packed;
> +
>  struct bdb_chromaticity {
>  	struct chromaticity chromaticity[16];
> +	struct luminance_and_gamma luminance_and_gamma[16];		/* 211+ */
>  } __packed;
>  
>  /*
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/display/intel_vbt_defs.h b/drivers/gpu/drm/i915/display/intel_vbt_defs.h
index da8694771f69..1af8407e2081 100644
--- a/drivers/gpu/drm/i915/display/intel_vbt_defs.h
+++ b/drivers/gpu/drm/i915/display/intel_vbt_defs.h
@@ -1395,8 +1395,20 @@  struct chromaticity {
 	u8 white_y_hi;
 } __packed;
 
+struct luminance_and_gamma {
+	u8 luminance_enable:1;						/* 211+ */
+	u8 gamma_enable:1;						/* 211+ */
+	u8 rsvd:6;
+
+	u16 min_luminance;						/* 211+ */
+	u16 max_luminance;						/* 211+ */
+	u16 one_percent_max_luminance;					/* 211+ */
+	u8 gamma;							/* 211+ */
+} __packed;
+
 struct bdb_chromaticity {
 	struct chromaticity chromaticity[16];
+	struct luminance_and_gamma luminance_and_gamma[16];		/* 211+ */
 } __packed;
 
 /*