Den 25.08.2022 15.44, skrev Maxime Ripard: > Hi, > > On Sat, Aug 20, 2022 at 10:12:46PM +0200, Noralf Trønnes wrote: >>> diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h >>> index 1e9996b33cc8..78275e68ff66 100644 >>> --- a/include/drm/drm_connector.h >>> +++ b/include/drm/drm_connector.h >>> @@ -143,6 +143,32 @@ enum subpixel_order { >>> >>> }; >>> >>> +#define DRM_MODE_TV_NORM_NTSC_443 (1 << 0) >>> +#define DRM_MODE_TV_NORM_NTSC_J (1 << 1) >>> +#define DRM_MODE_TV_NORM_NTSC_M (1 << 2) >>> +#define DRM_MODE_TV_NORM_PAL_60 (1 << 3) >>> +#define DRM_MODE_TV_NORM_PAL_B (1 << 4) >>> +#define DRM_MODE_TV_NORM_PAL_D (1 << 5) >>> +#define DRM_MODE_TV_NORM_PAL_G (1 << 6) >>> +#define DRM_MODE_TV_NORM_PAL_H (1 << 7) >>> +#define DRM_MODE_TV_NORM_PAL_I (1 << 8) >>> +#define DRM_MODE_TV_NORM_PAL_M (1 << 9) >>> +#define DRM_MODE_TV_NORM_PAL_N (1 << 10) >>> +#define DRM_MODE_TV_NORM_PAL_NC (1 << 11) >>> +#define DRM_MODE_TV_NORM_SECAM_60 (1 << 12) >>> +#define DRM_MODE_TV_NORM_SECAM_B (1 << 13) >>> +#define DRM_MODE_TV_NORM_SECAM_D (1 << 14) >>> +#define DRM_MODE_TV_NORM_SECAM_G (1 << 15) >>> +#define DRM_MODE_TV_NORM_SECAM_K (1 << 16) >>> +#define DRM_MODE_TV_NORM_SECAM_K1 (1 << 17) >>> +#define DRM_MODE_TV_NORM_SECAM_L (1 << 18) >>> +#define DRM_MODE_TV_NORM_HD480I (1 << 19) >>> +#define DRM_MODE_TV_NORM_HD480P (1 << 20) >>> +#define DRM_MODE_TV_NORM_HD576I (1 << 21) >>> +#define DRM_MODE_TV_NORM_HD576P (1 << 22) >>> +#define DRM_MODE_TV_NORM_HD720P (1 << 23) >>> +#define DRM_MODE_TV_NORM_HD1080I (1 << 24) >>> + >> >> This is an area where DRM overlaps with v4l2, see: >> - include/dt-bindings/display/sdtv-standards.h >> - v4l2_norm_to_name() >> >> Maybe we should follow suit, but if we do our own thing please mention >> why in the commit message. > > Are you suggesting that we'd share that definition with v4l2? > If possible, yes. > I've tried to share some code in the past between v4l2 and DRM, and it > got completely shut down so it's not something I'd like to try again, if > possible. > But that is a good enough reason not to do so. I just got the impression from some of Laurent's emails a while back that there was some cooperativ atmosphere, but I might be mistaken in my reading/understanding. It is ofc possible to just copy the values from sdtv-standards.h, but I see that hd* is missing from that list, so not sure if there's much point if it has to be extended without changing the source. We can at least use the names from v4l2_norm_to_name(), but from a quick look it seems you already do so. Noralf.