| Message ID | 20181009002351.23085-1-manasi.d.navare@intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | drm/dp: Add definitions for eDP Rev 1.4a and 1.4b | expand |
On Mon, Oct 08, 2018 at 05:23:51PM -0700, Manasi Navare wrote: > VESA eDP 1.4 specification has separate fields defined in > EDP_DPCD_REV for eDP 1.4a and 1.4b eDP revisions. > This patch defines those. Found this when one of my eDP panels > advertises eDP 1.4a (04h) in the EDP_DPCD_REV DPCD field. > > Cc: Jani Nikula <jani.nikula@intel.com> > Cc: Ville Syrjala <ville.syrjala@linux.intel.com> > Signed-off-by: Manasi Navare <manasi.d.navare@intel.com> > --- > include/drm/drm_dp_helper.h | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h > index 2a3843f248cf..9ad98e8d9ede 100644 > --- a/include/drm/drm_dp_helper.h > +++ b/include/drm/drm_dp_helper.h > @@ -685,6 +685,8 @@ > # define DP_EDP_12 0x01 > # define DP_EDP_13 0x02 > # define DP_EDP_14 0x03 > +# define DP_EDP_14a 0x04 /* eDP 1.4a */ > +# define DP_EDP_14b 0x05 /* eDP 1.4b */ The comments seem a bit redundant. Either way Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> > > #define DP_EDP_GENERAL_CAP_1 0x701 > # define DP_EDP_TCON_BACKLIGHT_ADJUSTMENT_CAP (1 << 0) > -- > 2.18.0
On Tue, 09 Oct 2018, Ville Syrjälä <ville.syrjala@linux.intel.com> wrote: > On Mon, Oct 08, 2018 at 05:23:51PM -0700, Manasi Navare wrote: >> VESA eDP 1.4 specification has separate fields defined in >> EDP_DPCD_REV for eDP 1.4a and 1.4b eDP revisions. >> This patch defines those. Found this when one of my eDP panels >> advertises eDP 1.4a (04h) in the EDP_DPCD_REV DPCD field. >> >> Cc: Jani Nikula <jani.nikula@intel.com> >> Cc: Ville Syrjala <ville.syrjala@linux.intel.com> >> Signed-off-by: Manasi Navare <manasi.d.navare@intel.com> >> --- >> include/drm/drm_dp_helper.h | 2 ++ >> 1 file changed, 2 insertions(+) >> >> diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h >> index 2a3843f248cf..9ad98e8d9ede 100644 >> --- a/include/drm/drm_dp_helper.h >> +++ b/include/drm/drm_dp_helper.h >> @@ -685,6 +685,8 @@ >> # define DP_EDP_12 0x01 >> # define DP_EDP_13 0x02 >> # define DP_EDP_14 0x03 >> +# define DP_EDP_14a 0x04 /* eDP 1.4a */ >> +# define DP_EDP_14b 0x05 /* eDP 1.4b */ > > The comments seem a bit redundant. > > Either way > Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> So I guess we'll need code changing our == checks to >= checks. BR, Jani. > >> >> #define DP_EDP_GENERAL_CAP_1 0x701 >> # define DP_EDP_TCON_BACKLIGHT_ADJUSTMENT_CAP (1 << 0) >> -- >> 2.18.0
On Tue, Oct 09, 2018 at 05:32:49PM +0300, Jani Nikula wrote: > On Tue, 09 Oct 2018, Ville Syrjälä <ville.syrjala@linux.intel.com> wrote: > > On Mon, Oct 08, 2018 at 05:23:51PM -0700, Manasi Navare wrote: > >> VESA eDP 1.4 specification has separate fields defined in > >> EDP_DPCD_REV for eDP 1.4a and 1.4b eDP revisions. > >> This patch defines those. Found this when one of my eDP panels > >> advertises eDP 1.4a (04h) in the EDP_DPCD_REV DPCD field. > >> > >> Cc: Jani Nikula <jani.nikula@intel.com> > >> Cc: Ville Syrjala <ville.syrjala@linux.intel.com> > >> Signed-off-by: Manasi Navare <manasi.d.navare@intel.com> > >> --- > >> include/drm/drm_dp_helper.h | 2 ++ > >> 1 file changed, 2 insertions(+) > >> > >> diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h > >> index 2a3843f248cf..9ad98e8d9ede 100644 > >> --- a/include/drm/drm_dp_helper.h > >> +++ b/include/drm/drm_dp_helper.h > >> @@ -685,6 +685,8 @@ > >> # define DP_EDP_12 0x01 > >> # define DP_EDP_13 0x02 > >> # define DP_EDP_14 0x03 > >> +# define DP_EDP_14a 0x04 /* eDP 1.4a */ > >> +# define DP_EDP_14b 0x05 /* eDP 1.4b */ > > > > The comments seem a bit redundant. > > > > Either way > > Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> > > So I guess we'll need code changing our == checks to >= checks. > We already have >= check in edp_init_dpcd and then in compute_config, we check for < DP_EDP_14 to set to max link rate /lane count. So checks wise we shuld be good for now. Manasi > BR, > Jani. > > > > >> > >> #define DP_EDP_GENERAL_CAP_1 0x701 > >> # define DP_EDP_TCON_BACKLIGHT_ADJUSTMENT_CAP (1 << 0) > >> -- > >> 2.18.0 > > -- > Jani Nikula, Intel Open Source Graphics Center
On Tue, Oct 09, 2018 at 04:43:51PM +0300, Ville Syrjälä wrote: > On Mon, Oct 08, 2018 at 05:23:51PM -0700, Manasi Navare wrote: > > VESA eDP 1.4 specification has separate fields defined in > > EDP_DPCD_REV for eDP 1.4a and 1.4b eDP revisions. > > This patch defines those. Found this when one of my eDP panels > > advertises eDP 1.4a (04h) in the EDP_DPCD_REV DPCD field. > > > > Cc: Jani Nikula <jani.nikula@intel.com> > > Cc: Ville Syrjala <ville.syrjala@linux.intel.com> > > Signed-off-by: Manasi Navare <manasi.d.navare@intel.com> > > --- > > include/drm/drm_dp_helper.h | 2 ++ > > 1 file changed, 2 insertions(+) > > > > diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h > > index 2a3843f248cf..9ad98e8d9ede 100644 > > --- a/include/drm/drm_dp_helper.h > > +++ b/include/drm/drm_dp_helper.h > > @@ -685,6 +685,8 @@ > > # define DP_EDP_12 0x01 > > # define DP_EDP_13 0x02 > > # define DP_EDP_14 0x03 > > +# define DP_EDP_14a 0x04 /* eDP 1.4a */ > > +# define DP_EDP_14b 0x05 /* eDP 1.4b */ > > The comments seem a bit redundant. > Thanks for the review. I added the comments since for all other defs there is comment of eDP 1.2 at the top of defs. If you feel strongly about it I can remove the comments before merging. What do you think? Manasi > Either way > Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> > > > > > #define DP_EDP_GENERAL_CAP_1 0x701 > > # define DP_EDP_TCON_BACKLIGHT_ADJUSTMENT_CAP (1 << 0) > > -- > > 2.18.0 > > -- > Ville Syrjälä > Intel
Thanks for the review. Pushed to drm-misc Manasi On Tue, Oct 09, 2018 at 04:43:51PM +0300, Ville Syrjälä wrote: > On Mon, Oct 08, 2018 at 05:23:51PM -0700, Manasi Navare wrote: > > VESA eDP 1.4 specification has separate fields defined in > > EDP_DPCD_REV for eDP 1.4a and 1.4b eDP revisions. > > This patch defines those. Found this when one of my eDP panels > > advertises eDP 1.4a (04h) in the EDP_DPCD_REV DPCD field. > > > > Cc: Jani Nikula <jani.nikula@intel.com> > > Cc: Ville Syrjala <ville.syrjala@linux.intel.com> > > Signed-off-by: Manasi Navare <manasi.d.navare@intel.com> > > --- > > include/drm/drm_dp_helper.h | 2 ++ > > 1 file changed, 2 insertions(+) > > > > diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h > > index 2a3843f248cf..9ad98e8d9ede 100644 > > --- a/include/drm/drm_dp_helper.h > > +++ b/include/drm/drm_dp_helper.h > > @@ -685,6 +685,8 @@ > > # define DP_EDP_12 0x01 > > # define DP_EDP_13 0x02 > > # define DP_EDP_14 0x03 > > +# define DP_EDP_14a 0x04 /* eDP 1.4a */ > > +# define DP_EDP_14b 0x05 /* eDP 1.4b */ > > The comments seem a bit redundant. > > Either way > Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> > > > > > #define DP_EDP_GENERAL_CAP_1 0x701 > > # define DP_EDP_TCON_BACKLIGHT_ADJUSTMENT_CAP (1 << 0) > > -- > > 2.18.0 > > -- > Ville Syrjälä > Intel
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h index 2a3843f248cf..9ad98e8d9ede 100644 --- a/include/drm/drm_dp_helper.h +++ b/include/drm/drm_dp_helper.h @@ -685,6 +685,8 @@ # define DP_EDP_12 0x01 # define DP_EDP_13 0x02 # define DP_EDP_14 0x03 +# define DP_EDP_14a 0x04 /* eDP 1.4a */ +# define DP_EDP_14b 0x05 /* eDP 1.4b */ #define DP_EDP_GENERAL_CAP_1 0x701 # define DP_EDP_TCON_BACKLIGHT_ADJUSTMENT_CAP (1 << 0)
VESA eDP 1.4 specification has separate fields defined in EDP_DPCD_REV for eDP 1.4a and 1.4b eDP revisions. This patch defines those. Found this when one of my eDP panels advertises eDP 1.4a (04h) in the EDP_DPCD_REV DPCD field. Cc: Jani Nikula <jani.nikula@intel.com> Cc: Ville Syrjala <ville.syrjala@linux.intel.com> Signed-off-by: Manasi Navare <manasi.d.navare@intel.com> --- include/drm/drm_dp_helper.h | 2 ++ 1 file changed, 2 insertions(+)