Re: [PATCH 08/12] drm/i915/display: Add HAS_CMN_SDP_TL macro

[Jani Nikula <jani.nikula@linux.intel.com>]

On Mon, 13 Apr 2026, Ankit Nautiyal <ankit.k.nautiyal@intel.com> wrote:
> Add a helper macro to detect CMN SDP TL support on platforms with display
> version 35 and above.
>
> Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_display_device.h | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_display_device.h b/drivers/gpu/drm/i915/display/intel_display_device.h
> index 9338ea087e92..36a8a956f54a 100644
> --- a/drivers/gpu/drm/i915/display/intel_display_device.h
> +++ b/drivers/gpu/drm/i915/display/intel_display_device.h
> @@ -154,6 +154,7 @@ struct intel_display_platforms {
>  #define HAS_CASF(__display)		(DISPLAY_VER(__display) >= 20)
>  #define HAS_CDCLK_CRAWL(__display)	(DISPLAY_INFO(__display)->has_cdclk_crawl)
>  #define HAS_CDCLK_SQUASH(__display)	(DISPLAY_INFO(__display)->has_cdclk_squash)
> +#define HAS_CMN_SDP_TL(__display)	(DISPLAY_VER(__display) >= 35)

Even if the register is called CMN, we can actually use the word COMMON
here.

>  #define HAS_CMRR(__display)		(DISPLAY_VER(__display) >= 20)
>  #define HAS_CMTG(__display)		(!(__display)->platform.dg2 && DISPLAY_VER(__display) >= 13)
>  #define HAS_CUR_FBC(__display)		(!HAS_GMCH(__display) && IS_DISPLAY_VER(__display, 7, 13))

-- 
Jani Nikula, Intel