[Intel-gfx] [IGT PATCH] intel_bios_reader: make edp block decode match kernel
Damien Lespiau
damien.lespiau at intel.com
Tue May 6 17:58:36 CEST 2014
On Tue, May 06, 2014 at 02:27:23PM +0300, Jani Nikula wrote:
> All the somewhat recent VBT specs and the kernel have different format
> for the eDP block than what the tool decodes. What the tool does *may*
> be correct for really old VBT, but I have no specs or other reference to
> suppor this. Just do what the kernel does, that's what we're interested
> in anyway.
>
> Signed-off-by: Jani Nikula <jani.nikula at intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau at intel.com>
You may want to add checks on the VBT revision that introduce the
different parameters.
We're also missing the VswingPreEmphasisValue fields from rev. 173.
--
Damien
> ---
> tools/intel_bios.h | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/tools/intel_bios.h b/tools/intel_bios.h
> index 128502039c66..832c580dd084 100644
> --- a/tools/intel_bios.h
> +++ b/tools/intel_bios.h
> @@ -590,8 +590,11 @@ struct edp_link_params {
> struct bdb_edp {
> struct edp_power_seq power_seqs[16];
> uint32_t color_depth;
> - uint32_t sdrrs_msa_timing_delay;
> struct edp_link_params link_params[16];
> + uint32_t sdrrs_msa_timing_delay;
> +
> + uint16_t edp_s3d_feature;
> + uint16_t edp_t3_optimization;
> } __attribute__ ((packed));
>
> /*
> --
> 1.9.1
>
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