[Intel-gfx] [PATCH v2 3/3] drm/i915/ehl: Update voltage swing table

[Matt Roper]

On Tue, Aug 25, 2020 at 11:43:43AM -0700, José Roberto de Souza wrote:
> Update with latest tunning in the table.
> 
> BSpec: 21257
> Cc: Matt Roper <matthew.d.roper at intel.com>
> Signed-off-by: José Roberto de Souza <jose.souza at intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_ddi.c | 12 ++++++------
>  1 file changed, 6 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
> index 699511872290..c7e64e20a772 100644
> --- a/drivers/gpu/drm/i915/display/intel_ddi.c
> +++ b/drivers/gpu/drm/i915/display/intel_ddi.c
> @@ -572,14 +572,14 @@ static const struct cnl_ddi_buf_trans ehl_combo_phy_ddi_translations_dp[] = {
>  						/* NT mV Trans mV db    */
>  	{ 0xA, 0x33, 0x3F, 0x00, 0x00 },	/* 350   350      0.0   */
>  	{ 0xA, 0x47, 0x36, 0x00, 0x09 },	/* 350   500      3.1   */
> -	{ 0xC, 0x64, 0x30, 0x00, 0x0F },	/* 350   700      6.0   */
> -	{ 0x6, 0x7F, 0x2C, 0x00, 0x13 },	/* 350   900      8.2   */
> +	{ 0xC, 0x64, 0x34, 0x00, 0x0B },	/* 350   700      6.0   */
> +	{ 0x6, 0x7F, 0x30, 0x00, 0x0F },	/* 350   900      8.2   */
>  	{ 0xA, 0x46, 0x3F, 0x00, 0x00 },	/* 500   500      0.0   */
> -	{ 0xC, 0x64, 0x36, 0x00, 0x09 },	/* 500   700      2.9   */
> -	{ 0x6, 0x7F, 0x30, 0x00, 0x0F },	/* 500   900      5.1   */
> +	{ 0xC, 0x64, 0x38, 0x00, 0x07 },	/* 500   700      2.9   */
> +	{ 0x6, 0x7F, 0x32, 0x00, 0x0D },	/* 500   900      5.1   */
>  	{ 0xC, 0x61, 0x3F, 0x00, 0x00 },	/* 650   700      0.6   */
> -	{ 0x6, 0x7F, 0x37, 0x00, 0x08 },	/* 600   900      3.5   */
> -	{ 0x6, 0x7F, 0x3F, 0x00, 0x00 },	/* 900   900      0.0   */
> +	{ 0x6, 0x7F, 0x37, 0x00, 0x07 },	/* 600   900      3.5   */
> +	{ 0x6, 0x7F, 0x38, 0x00, 0x00 },	/* 900   900      0.0   */

I think it got missed at the bottom of my last response, but I see
slightly different values for the last two rows here in the EHL table.
Specifically the third column (cursor coeff dw4) -- I see 0x38 and 0x3F
as the last two values?


Matt

>  };
>  
>  struct icl_mg_phy_ddi_buf_trans {
> -- 
> 2.28.0
> 

-- 
Matt Roper
Graphics Software Engineer
VTT-OSGC Platform Enablement
Intel Corporation
(916) 356-2795