On Thu, 21 Mar 2024, Ville Syrjala <ville.syrjala@xxxxxxxxxxxxxxx> wrote:
> From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
>
> According to some VBIOS sources the LFP power block used to
> have a single bit for DPST support. In version 159 that bit
> got moved into the driver features block, and then in version
> 228 back into the LFP power block (but this time as a
> per-panel thing). We have definitions for the last two, but
> not the original bit. Define it as well.
>
> Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Acked-by: Jani Nikula <jani.nikula@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/display/intel_vbt_defs.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_vbt_defs.h b/drivers/gpu/drm/i915/display/intel_vbt_defs.h
> index 24583b455f2d..5da8ae407dfd 100644
> --- a/drivers/gpu/drm/i915/display/intel_vbt_defs.h
> +++ b/drivers/gpu/drm/i915/display/intel_vbt_defs.h
> @@ -918,7 +918,7 @@ struct bdb_lfp_backlight_data {
> * Block 44 - LFP Power Conservation Features Block
> */
> struct lfp_power_features {
> - u8 reserved1:1;
> + u8 dpst_support:1; /* ???-159 */
> u8 power_conservation_pref:3;
> u8 reserved2:1;
> u8 lace_enabled_status:1; /* 210+ */
--
Jani Nikula, Intel
