* [PATCH v4 0/4] drm/edid: Add new modes from CTA-861-G
@ 2019-12-13 17:43 Ville Syrjala
2019-12-13 17:43 ` [PATCH v4 1/4] drm/edid: Abstract away cea_edid_modes[] Ville Syrjala
` (3 more replies)
0 siblings, 4 replies; 8+ messages in thread
From: Ville Syrjala @ 2019-12-13 17:43 UTC (permalink / raw)
To: dri-devel; +Cc: Hans Verkuil, Manasi Navare, intel-gfx, Thomas Anderson
From: Ville Syrjälä <ville.syrjala@linux.intel.com>
Review feedback addressed. I considered changing the approach
based on Tom's comments but in the end decided that probably
better to go with this for now. We can massage it later if
required.
Cc: Hans Verkuil <hansverk@cisco.com>
Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Thomas Anderson <thomasanderson@google.com>
Ville Syrjälä (4):
drm/edid: Abstract away cea_edid_modes[]
drm/edid: Add CTA-861-G modes with VIC >= 193
drm/edid: Throw away the dummy VIC 0 cea mode
drm/edid: Make sure the CEA mode arrays have the correct amount of
modes
drivers/gpu/drm/drm_edid.c | 217 +++++++++++++++++++++++++++++++++----
1 file changed, 193 insertions(+), 24 deletions(-)
--
2.23.0
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^ permalink raw reply [flat|nested] 8+ messages in thread* [PATCH v4 1/4] drm/edid: Abstract away cea_edid_modes[] 2019-12-13 17:43 [PATCH v4 0/4] drm/edid: Add new modes from CTA-861-G Ville Syrjala @ 2019-12-13 17:43 ` Ville Syrjala 2019-12-13 21:03 ` Tom Anderson 2019-12-13 17:43 ` [PATCH v4 2/4] drm/edid: Add CTA-861-G modes with VIC >= 193 Ville Syrjala ` (2 subsequent siblings) 3 siblings, 1 reply; 8+ messages in thread From: Ville Syrjala @ 2019-12-13 17:43 UTC (permalink / raw) To: dri-devel; +Cc: Hans Verkuil, Manasi Navare, intel-gfx, Tom Anderson From: Ville Syrjälä <ville.syrjala@linux.intel.com> We're going to need two cea mode tables (one for VICs < 128, another one for VICs >= 193). To that end replace the direct edid_cea_modes[] lookups with a function call. And we'll rename the array to edid_cea_modes_0[] to indicate how it's to be indexed. v2: Fix typos (Tom) Drop the pointless NULL checks in the loops (Tom) Assign when declaring (Tom) Improve the comment for cea_modes_*[] to indicate that one should always use cea_mode_for_vic() (Tom) Cc: Tom Anderson <thomasanderson@google.com> Cc: Hans Verkuil <hansverk@cisco.com> Cc: Manasi Navare <manasi.d.navare@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> --- drivers/gpu/drm/drm_edid.c | 67 +++++++++++++++++++++++++------------- 1 file changed, 45 insertions(+), 22 deletions(-) diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 5b33b7cfd645..00a543b9daab 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -710,12 +710,11 @@ static const struct minimode extra_modes[] = { }; /* - * Probably taken from CEA-861 spec. - * This table is converted from xorg's hw/xfree86/modes/xf86EdidModes.c. + * From CEA/CTA-861 spec. * - * Index using the VIC. + * Do not access directly, instead always use cea_mode_for_vic(). */ -static const struct drm_display_mode edid_cea_modes[] = { +static const struct drm_display_mode edid_cea_modes_0[] = { /* 0 - dummy, VICs start at 1 */ { }, /* 1 - 640x480@60Hz 4:3 */ @@ -3071,6 +3070,25 @@ static u8 *drm_find_cea_extension(const struct edid *edid) return cea; } +static const struct drm_display_mode *cea_mode_for_vic(u8 vic) +{ + if (!vic) + return NULL; + if (vic < ARRAY_SIZE(edid_cea_modes_0)) + return &edid_cea_modes_0[vic]; + return NULL; +} + +static u8 cea_num_vics(void) +{ + return ARRAY_SIZE(edid_cea_modes_0); +} + +static u8 cea_next_vic(u8 vic) +{ + return vic + 1; +} + /* * Calculate the alternate clock for the CEA mode * (60Hz vs. 59.94Hz etc.) @@ -3108,14 +3126,14 @@ cea_mode_alternate_timings(u8 vic, struct drm_display_mode *mode) * get the other variants by simply increasing the * vertical front porch length. */ - BUILD_BUG_ON(edid_cea_modes[8].vtotal != 262 || - edid_cea_modes[9].vtotal != 262 || - edid_cea_modes[12].vtotal != 262 || - edid_cea_modes[13].vtotal != 262 || - edid_cea_modes[23].vtotal != 312 || - edid_cea_modes[24].vtotal != 312 || - edid_cea_modes[27].vtotal != 312 || - edid_cea_modes[28].vtotal != 312); + BUILD_BUG_ON(cea_mode_for_vic(8)->vtotal != 262 || + cea_mode_for_vic(9)->vtotal != 262 || + cea_mode_for_vic(12)->vtotal != 262 || + cea_mode_for_vic(13)->vtotal != 262 || + cea_mode_for_vic(23)->vtotal != 312 || + cea_mode_for_vic(24)->vtotal != 312 || + cea_mode_for_vic(27)->vtotal != 312 || + cea_mode_for_vic(28)->vtotal != 312); if (((vic == 8 || vic == 9 || vic == 12 || vic == 13) && mode->vtotal < 263) || @@ -3143,8 +3161,8 @@ static u8 drm_match_cea_mode_clock_tolerance(const struct drm_display_mode *to_m if (to_match->picture_aspect_ratio) match_flags |= DRM_MODE_MATCH_ASPECT_RATIO; - for (vic = 1; vic < ARRAY_SIZE(edid_cea_modes); vic++) { - struct drm_display_mode cea_mode = edid_cea_modes[vic]; + for (vic = 1; vic < cea_num_vics(); vic = cea_next_vic(vic)) { + struct drm_display_mode cea_mode = *cea_mode_for_vic(vic); unsigned int clock1, clock2; /* Check both 60Hz and 59.94Hz */ @@ -3182,8 +3200,8 @@ u8 drm_match_cea_mode(const struct drm_display_mode *to_match) if (to_match->picture_aspect_ratio) match_flags |= DRM_MODE_MATCH_ASPECT_RATIO; - for (vic = 1; vic < ARRAY_SIZE(edid_cea_modes); vic++) { - struct drm_display_mode cea_mode = edid_cea_modes[vic]; + for (vic = 1; vic < cea_num_vics(); vic = cea_next_vic(vic)) { + struct drm_display_mode cea_mode = *cea_mode_for_vic(vic); unsigned int clock1, clock2; /* Check both 60Hz and 59.94Hz */ @@ -3206,12 +3224,17 @@ EXPORT_SYMBOL(drm_match_cea_mode); static bool drm_valid_cea_vic(u8 vic) { - return vic > 0 && vic < ARRAY_SIZE(edid_cea_modes); + return cea_mode_for_vic(vic) != NULL; } static enum hdmi_picture_aspect drm_get_cea_aspect_ratio(const u8 video_code) { - return edid_cea_modes[video_code].picture_aspect_ratio; + const struct drm_display_mode *mode = cea_mode_for_vic(video_code); + + if (mode) + return mode->picture_aspect_ratio; + + return HDMI_PICTURE_ASPECT_NONE; } static enum hdmi_picture_aspect drm_get_hdmi_aspect_ratio(const u8 video_code) @@ -3323,7 +3346,7 @@ add_alternate_cea_modes(struct drm_connector *connector, struct edid *edid) unsigned int clock1, clock2; if (drm_valid_cea_vic(vic)) { - cea_mode = &edid_cea_modes[vic]; + cea_mode = cea_mode_for_vic(vic); clock2 = cea_mode_alternate_clock(cea_mode); } else { vic = drm_match_hdmi_mode(mode); @@ -3398,7 +3421,7 @@ drm_display_mode_from_vic_index(struct drm_connector *connector, if (!drm_valid_cea_vic(vic)) return NULL; - newmode = drm_mode_duplicate(dev, &edid_cea_modes[vic]); + newmode = drm_mode_duplicate(dev, cea_mode_for_vic(vic)); if (!newmode) return NULL; @@ -3432,7 +3455,7 @@ static int do_y420vdb_modes(struct drm_connector *connector, if (!drm_valid_cea_vic(vic)) continue; - newmode = drm_mode_duplicate(dev, &edid_cea_modes[vic]); + newmode = drm_mode_duplicate(dev, cea_mode_for_vic(vic)); if (!newmode) break; bitmap_set(hdmi->y420_vdb_modes, vic, 1); @@ -4001,7 +4024,7 @@ static void fixup_detailed_cea_mode_clock(struct drm_display_mode *mode) vic = drm_match_cea_mode_clock_tolerance(mode, 5); if (drm_valid_cea_vic(vic)) { type = "CEA"; - cea_mode = &edid_cea_modes[vic]; + cea_mode = cea_mode_for_vic(vic); clock1 = cea_mode->clock; clock2 = cea_mode_alternate_clock(cea_mode); } else { -- 2.23.0 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel ^ permalink raw reply related [flat|nested] 8+ messages in thread
* Re: [PATCH v4 1/4] drm/edid: Abstract away cea_edid_modes[] 2019-12-13 17:43 ` [PATCH v4 1/4] drm/edid: Abstract away cea_edid_modes[] Ville Syrjala @ 2019-12-13 21:03 ` Tom Anderson 2019-12-16 15:23 ` Ville Syrjälä 0 siblings, 1 reply; 8+ messages in thread From: Tom Anderson @ 2019-12-13 21:03 UTC (permalink / raw) To: Ville Syrjala; +Cc: Hans Verkuil, Manasi Navare, intel-gfx, dri-devel Latest patch looks good to me, thanks for the changes! Reviewed-by: Thomas Anderson <thomasanderson@google.com> On Fri, Dec 13, 2019 at 07:43:45PM +0200, Ville Syrjala wrote: > From: Ville Syrjälä <ville.syrjala@linux.intel.com> > > We're going to need two cea mode tables (one for VICs < 128, > another one for VICs >= 193). To that end replace the direct > edid_cea_modes[] lookups with a function call. And we'll rename > the array to edid_cea_modes_0[] to indicate how it's to be > indexed. > > v2: Fix typos (Tom) > Drop the pointless NULL checks in the loops (Tom) > Assign when declaring (Tom) > Improve the comment for cea_modes_*[] to indicate > that one should always use cea_mode_for_vic() (Tom) > > Cc: Tom Anderson <thomasanderson@google.com> > Cc: Hans Verkuil <hansverk@cisco.com> > Cc: Manasi Navare <manasi.d.navare@intel.com> > Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> > --- > drivers/gpu/drm/drm_edid.c | 67 +++++++++++++++++++++++++------------- > 1 file changed, 45 insertions(+), 22 deletions(-) > > diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c > index 5b33b7cfd645..00a543b9daab 100644 > --- a/drivers/gpu/drm/drm_edid.c > +++ b/drivers/gpu/drm/drm_edid.c > @@ -710,12 +710,11 @@ static const struct minimode extra_modes[] = { > }; > > /* > - * Probably taken from CEA-861 spec. > - * This table is converted from xorg's hw/xfree86/modes/xf86EdidModes.c. > + * From CEA/CTA-861 spec. > * > - * Index using the VIC. > + * Do not access directly, instead always use cea_mode_for_vic(). > */ > -static const struct drm_display_mode edid_cea_modes[] = { > +static const struct drm_display_mode edid_cea_modes_0[] = { > /* 0 - dummy, VICs start at 1 */ > { }, > /* 1 - 640x480@60Hz 4:3 */ > @@ -3071,6 +3070,25 @@ static u8 *drm_find_cea_extension(const struct edid *edid) > return cea; > } > > +static const struct drm_display_mode *cea_mode_for_vic(u8 vic) > +{ > + if (!vic) > + return NULL; > + if (vic < ARRAY_SIZE(edid_cea_modes_0)) > + return &edid_cea_modes_0[vic]; > + return NULL; > +} > + > +static u8 cea_num_vics(void) > +{ > + return ARRAY_SIZE(edid_cea_modes_0); > +} > + > +static u8 cea_next_vic(u8 vic) > +{ > + return vic + 1; > +} > + > /* > * Calculate the alternate clock for the CEA mode > * (60Hz vs. 59.94Hz etc.) > @@ -3108,14 +3126,14 @@ cea_mode_alternate_timings(u8 vic, struct drm_display_mode *mode) > * get the other variants by simply increasing the > * vertical front porch length. > */ > - BUILD_BUG_ON(edid_cea_modes[8].vtotal != 262 || > - edid_cea_modes[9].vtotal != 262 || > - edid_cea_modes[12].vtotal != 262 || > - edid_cea_modes[13].vtotal != 262 || > - edid_cea_modes[23].vtotal != 312 || > - edid_cea_modes[24].vtotal != 312 || > - edid_cea_modes[27].vtotal != 312 || > - edid_cea_modes[28].vtotal != 312); > + BUILD_BUG_ON(cea_mode_for_vic(8)->vtotal != 262 || > + cea_mode_for_vic(9)->vtotal != 262 || > + cea_mode_for_vic(12)->vtotal != 262 || > + cea_mode_for_vic(13)->vtotal != 262 || > + cea_mode_for_vic(23)->vtotal != 312 || > + cea_mode_for_vic(24)->vtotal != 312 || > + cea_mode_for_vic(27)->vtotal != 312 || > + cea_mode_for_vic(28)->vtotal != 312); > > if (((vic == 8 || vic == 9 || > vic == 12 || vic == 13) && mode->vtotal < 263) || > @@ -3143,8 +3161,8 @@ static u8 drm_match_cea_mode_clock_tolerance(const struct drm_display_mode *to_m > if (to_match->picture_aspect_ratio) > match_flags |= DRM_MODE_MATCH_ASPECT_RATIO; > > - for (vic = 1; vic < ARRAY_SIZE(edid_cea_modes); vic++) { > - struct drm_display_mode cea_mode = edid_cea_modes[vic]; > + for (vic = 1; vic < cea_num_vics(); vic = cea_next_vic(vic)) { > + struct drm_display_mode cea_mode = *cea_mode_for_vic(vic); > unsigned int clock1, clock2; > > /* Check both 60Hz and 59.94Hz */ > @@ -3182,8 +3200,8 @@ u8 drm_match_cea_mode(const struct drm_display_mode *to_match) > if (to_match->picture_aspect_ratio) > match_flags |= DRM_MODE_MATCH_ASPECT_RATIO; > > - for (vic = 1; vic < ARRAY_SIZE(edid_cea_modes); vic++) { > - struct drm_display_mode cea_mode = edid_cea_modes[vic]; > + for (vic = 1; vic < cea_num_vics(); vic = cea_next_vic(vic)) { > + struct drm_display_mode cea_mode = *cea_mode_for_vic(vic); > unsigned int clock1, clock2; > > /* Check both 60Hz and 59.94Hz */ > @@ -3206,12 +3224,17 @@ EXPORT_SYMBOL(drm_match_cea_mode); > > static bool drm_valid_cea_vic(u8 vic) > { > - return vic > 0 && vic < ARRAY_SIZE(edid_cea_modes); > + return cea_mode_for_vic(vic) != NULL; > } > > static enum hdmi_picture_aspect drm_get_cea_aspect_ratio(const u8 video_code) > { > - return edid_cea_modes[video_code].picture_aspect_ratio; > + const struct drm_display_mode *mode = cea_mode_for_vic(video_code); > + > + if (mode) > + return mode->picture_aspect_ratio; > + > + return HDMI_PICTURE_ASPECT_NONE; > } > > static enum hdmi_picture_aspect drm_get_hdmi_aspect_ratio(const u8 video_code) > @@ -3323,7 +3346,7 @@ add_alternate_cea_modes(struct drm_connector *connector, struct edid *edid) > unsigned int clock1, clock2; > > if (drm_valid_cea_vic(vic)) { > - cea_mode = &edid_cea_modes[vic]; > + cea_mode = cea_mode_for_vic(vic); > clock2 = cea_mode_alternate_clock(cea_mode); > } else { > vic = drm_match_hdmi_mode(mode); > @@ -3398,7 +3421,7 @@ drm_display_mode_from_vic_index(struct drm_connector *connector, > if (!drm_valid_cea_vic(vic)) > return NULL; > > - newmode = drm_mode_duplicate(dev, &edid_cea_modes[vic]); > + newmode = drm_mode_duplicate(dev, cea_mode_for_vic(vic)); > if (!newmode) > return NULL; > > @@ -3432,7 +3455,7 @@ static int do_y420vdb_modes(struct drm_connector *connector, > if (!drm_valid_cea_vic(vic)) > continue; > > - newmode = drm_mode_duplicate(dev, &edid_cea_modes[vic]); > + newmode = drm_mode_duplicate(dev, cea_mode_for_vic(vic)); > if (!newmode) > break; > bitmap_set(hdmi->y420_vdb_modes, vic, 1); > @@ -4001,7 +4024,7 @@ static void fixup_detailed_cea_mode_clock(struct drm_display_mode *mode) > vic = drm_match_cea_mode_clock_tolerance(mode, 5); > if (drm_valid_cea_vic(vic)) { > type = "CEA"; > - cea_mode = &edid_cea_modes[vic]; > + cea_mode = cea_mode_for_vic(vic); > clock1 = cea_mode->clock; > clock2 = cea_mode_alternate_clock(cea_mode); > } else { > -- > 2.23.0 > _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH v4 1/4] drm/edid: Abstract away cea_edid_modes[] 2019-12-13 21:03 ` Tom Anderson @ 2019-12-16 15:23 ` Ville Syrjälä 0 siblings, 0 replies; 8+ messages in thread From: Ville Syrjälä @ 2019-12-16 15:23 UTC (permalink / raw) To: Tom Anderson; +Cc: Hans Verkuil, Manasi Navare, intel-gfx, dri-devel On Fri, Dec 13, 2019 at 01:03:30PM -0800, Tom Anderson wrote: > Latest patch looks good to me, thanks for the changes! > > Reviewed-by: Thomas Anderson <thomasanderson@google.com> Thanks for the review. Series pushed to drm-misc-next. > > On Fri, Dec 13, 2019 at 07:43:45PM +0200, Ville Syrjala wrote: > > From: Ville Syrjälä <ville.syrjala@linux.intel.com> > > > > We're going to need two cea mode tables (one for VICs < 128, > > another one for VICs >= 193). To that end replace the direct > > edid_cea_modes[] lookups with a function call. And we'll rename > > the array to edid_cea_modes_0[] to indicate how it's to be > > indexed. > > > > v2: Fix typos (Tom) > > Drop the pointless NULL checks in the loops (Tom) > > Assign when declaring (Tom) > > Improve the comment for cea_modes_*[] to indicate > > that one should always use cea_mode_for_vic() (Tom) > > > > Cc: Tom Anderson <thomasanderson@google.com> > > Cc: Hans Verkuil <hansverk@cisco.com> > > Cc: Manasi Navare <manasi.d.navare@intel.com> > > Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> > > --- > > drivers/gpu/drm/drm_edid.c | 67 +++++++++++++++++++++++++------------- > > 1 file changed, 45 insertions(+), 22 deletions(-) > > > > diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c > > index 5b33b7cfd645..00a543b9daab 100644 > > --- a/drivers/gpu/drm/drm_edid.c > > +++ b/drivers/gpu/drm/drm_edid.c > > @@ -710,12 +710,11 @@ static const struct minimode extra_modes[] = { > > }; > > > > /* > > - * Probably taken from CEA-861 spec. > > - * This table is converted from xorg's hw/xfree86/modes/xf86EdidModes.c. > > + * From CEA/CTA-861 spec. > > * > > - * Index using the VIC. > > + * Do not access directly, instead always use cea_mode_for_vic(). > > */ > > -static const struct drm_display_mode edid_cea_modes[] = { > > +static const struct drm_display_mode edid_cea_modes_0[] = { > > /* 0 - dummy, VICs start at 1 */ > > { }, > > /* 1 - 640x480@60Hz 4:3 */ > > @@ -3071,6 +3070,25 @@ static u8 *drm_find_cea_extension(const struct edid *edid) > > return cea; > > } > > > > +static const struct drm_display_mode *cea_mode_for_vic(u8 vic) > > +{ > > + if (!vic) > > + return NULL; > > + if (vic < ARRAY_SIZE(edid_cea_modes_0)) > > + return &edid_cea_modes_0[vic]; > > + return NULL; > > +} > > + > > +static u8 cea_num_vics(void) > > +{ > > + return ARRAY_SIZE(edid_cea_modes_0); > > +} > > + > > +static u8 cea_next_vic(u8 vic) > > +{ > > + return vic + 1; > > +} > > + > > /* > > * Calculate the alternate clock for the CEA mode > > * (60Hz vs. 59.94Hz etc.) > > @@ -3108,14 +3126,14 @@ cea_mode_alternate_timings(u8 vic, struct drm_display_mode *mode) > > * get the other variants by simply increasing the > > * vertical front porch length. > > */ > > - BUILD_BUG_ON(edid_cea_modes[8].vtotal != 262 || > > - edid_cea_modes[9].vtotal != 262 || > > - edid_cea_modes[12].vtotal != 262 || > > - edid_cea_modes[13].vtotal != 262 || > > - edid_cea_modes[23].vtotal != 312 || > > - edid_cea_modes[24].vtotal != 312 || > > - edid_cea_modes[27].vtotal != 312 || > > - edid_cea_modes[28].vtotal != 312); > > + BUILD_BUG_ON(cea_mode_for_vic(8)->vtotal != 262 || > > + cea_mode_for_vic(9)->vtotal != 262 || > > + cea_mode_for_vic(12)->vtotal != 262 || > > + cea_mode_for_vic(13)->vtotal != 262 || > > + cea_mode_for_vic(23)->vtotal != 312 || > > + cea_mode_for_vic(24)->vtotal != 312 || > > + cea_mode_for_vic(27)->vtotal != 312 || > > + cea_mode_for_vic(28)->vtotal != 312); > > > > if (((vic == 8 || vic == 9 || > > vic == 12 || vic == 13) && mode->vtotal < 263) || > > @@ -3143,8 +3161,8 @@ static u8 drm_match_cea_mode_clock_tolerance(const struct drm_display_mode *to_m > > if (to_match->picture_aspect_ratio) > > match_flags |= DRM_MODE_MATCH_ASPECT_RATIO; > > > > - for (vic = 1; vic < ARRAY_SIZE(edid_cea_modes); vic++) { > > - struct drm_display_mode cea_mode = edid_cea_modes[vic]; > > + for (vic = 1; vic < cea_num_vics(); vic = cea_next_vic(vic)) { > > + struct drm_display_mode cea_mode = *cea_mode_for_vic(vic); > > unsigned int clock1, clock2; > > > > /* Check both 60Hz and 59.94Hz */ > > @@ -3182,8 +3200,8 @@ u8 drm_match_cea_mode(const struct drm_display_mode *to_match) > > if (to_match->picture_aspect_ratio) > > match_flags |= DRM_MODE_MATCH_ASPECT_RATIO; > > > > - for (vic = 1; vic < ARRAY_SIZE(edid_cea_modes); vic++) { > > - struct drm_display_mode cea_mode = edid_cea_modes[vic]; > > + for (vic = 1; vic < cea_num_vics(); vic = cea_next_vic(vic)) { > > + struct drm_display_mode cea_mode = *cea_mode_for_vic(vic); > > unsigned int clock1, clock2; > > > > /* Check both 60Hz and 59.94Hz */ > > @@ -3206,12 +3224,17 @@ EXPORT_SYMBOL(drm_match_cea_mode); > > > > static bool drm_valid_cea_vic(u8 vic) > > { > > - return vic > 0 && vic < ARRAY_SIZE(edid_cea_modes); > > + return cea_mode_for_vic(vic) != NULL; > > } > > > > static enum hdmi_picture_aspect drm_get_cea_aspect_ratio(const u8 video_code) > > { > > - return edid_cea_modes[video_code].picture_aspect_ratio; > > + const struct drm_display_mode *mode = cea_mode_for_vic(video_code); > > + > > + if (mode) > > + return mode->picture_aspect_ratio; > > + > > + return HDMI_PICTURE_ASPECT_NONE; > > } > > > > static enum hdmi_picture_aspect drm_get_hdmi_aspect_ratio(const u8 video_code) > > @@ -3323,7 +3346,7 @@ add_alternate_cea_modes(struct drm_connector *connector, struct edid *edid) > > unsigned int clock1, clock2; > > > > if (drm_valid_cea_vic(vic)) { > > - cea_mode = &edid_cea_modes[vic]; > > + cea_mode = cea_mode_for_vic(vic); > > clock2 = cea_mode_alternate_clock(cea_mode); > > } else { > > vic = drm_match_hdmi_mode(mode); > > @@ -3398,7 +3421,7 @@ drm_display_mode_from_vic_index(struct drm_connector *connector, > > if (!drm_valid_cea_vic(vic)) > > return NULL; > > > > - newmode = drm_mode_duplicate(dev, &edid_cea_modes[vic]); > > + newmode = drm_mode_duplicate(dev, cea_mode_for_vic(vic)); > > if (!newmode) > > return NULL; > > > > @@ -3432,7 +3455,7 @@ static int do_y420vdb_modes(struct drm_connector *connector, > > if (!drm_valid_cea_vic(vic)) > > continue; > > > > - newmode = drm_mode_duplicate(dev, &edid_cea_modes[vic]); > > + newmode = drm_mode_duplicate(dev, cea_mode_for_vic(vic)); > > if (!newmode) > > break; > > bitmap_set(hdmi->y420_vdb_modes, vic, 1); > > @@ -4001,7 +4024,7 @@ static void fixup_detailed_cea_mode_clock(struct drm_display_mode *mode) > > vic = drm_match_cea_mode_clock_tolerance(mode, 5); > > if (drm_valid_cea_vic(vic)) { > > type = "CEA"; > > - cea_mode = &edid_cea_modes[vic]; > > + cea_mode = cea_mode_for_vic(vic); > > clock1 = cea_mode->clock; > > clock2 = cea_mode_alternate_clock(cea_mode); > > } else { > > -- > > 2.23.0 > > -- Ville Syrjälä Intel _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel ^ permalink raw reply [flat|nested] 8+ messages in thread
* [PATCH v4 2/4] drm/edid: Add CTA-861-G modes with VIC >= 193 2019-12-13 17:43 [PATCH v4 0/4] drm/edid: Add new modes from CTA-861-G Ville Syrjala 2019-12-13 17:43 ` [PATCH v4 1/4] drm/edid: Abstract away cea_edid_modes[] Ville Syrjala @ 2019-12-13 17:43 ` Ville Syrjala 2019-12-13 17:43 ` [PATCH v4 3/4] drm/edid: Throw away the dummy VIC 0 cea mode Ville Syrjala 2019-12-13 17:43 ` [PATCH v4 4/4] drm/edid: Make sure the CEA mode arrays have the correct amount of modes Ville Syrjala 3 siblings, 0 replies; 8+ messages in thread From: Ville Syrjala @ 2019-12-13 17:43 UTC (permalink / raw) To: dri-devel; +Cc: Hans Verkuil, Manasi Navare, intel-gfx, Thomas Anderson From: Ville Syrjälä <ville.syrjala@linux.intel.com> Add a second table to the cea modes with VIC >= 193. v2: Improve the comment for cea_modes_*[] to indicate that one should always use cea_mode_for_vic() (Tom) Cc: Hans Verkuil <hansverk@cisco.com> Reviewed-by: Manasi Navare <manasi.d.navare@intel.com> Reviewed-by: Thomas Anderson <thomasanderson@google.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> --- drivers/gpu/drm/drm_edid.c | 151 ++++++++++++++++++++++++++++++++++++- 1 file changed, 149 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 00a543b9daab..2787ad0ef881 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -1379,6 +1379,149 @@ static const struct drm_display_mode edid_cea_modes_0[] = { .vrefresh = 100, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, }, }; +/* + * From CEA/CTA-861 spec. + * + * Do not access directly, instead always use cea_mode_for_vic(). + */ +static const struct drm_display_mode edid_cea_modes_193[] = { + /* 193 - 5120x2160@120Hz 64:27 */ + { DRM_MODE("5120x2160", DRM_MODE_TYPE_DRIVER, 1485000, 5120, 5284, + 5372, 5500, 0, 2160, 2168, 2178, 2250, 0, + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC), + .vrefresh = 120, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, }, + /* 194 - 7680x4320@24Hz 16:9 */ + { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 1188000, 7680, 10232, + 10408, 11000, 0, 4320, 4336, 4356, 4500, 0, + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC), + .vrefresh = 24, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, }, + /* 195 - 7680x4320@25Hz 16:9 */ + { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 1188000, 7680, 10032, + 10208, 10800, 0, 4320, 4336, 4356, 4400, 0, + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC), + .vrefresh = 25, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, }, + /* 196 - 7680x4320@30Hz 16:9 */ + { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 1188000, 7680, 8232, + 8408, 9000, 0, 4320, 4336, 4356, 4400, 0, + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC), + .vrefresh = 30, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, }, + /* 197 - 7680x4320@48Hz 16:9 */ + { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 2376000, 7680, 10232, + 10408, 11000, 0, 4320, 4336, 4356, 4500, 0, + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC), + .vrefresh = 48, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, }, + /* 198 - 7680x4320@50Hz 16:9 */ + { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 2376000, 7680, 10032, + 10208, 10800, 0, 4320, 4336, 4356, 4400, 0, + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC), + .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, }, + /* 199 - 7680x4320@60Hz 16:9 */ + { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 2376000, 7680, 8232, + 8408, 9000, 0, 4320, 4336, 4356, 4400, 0, + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC), + .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, }, + /* 200 - 7680x4320@100Hz 16:9 */ + { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 4752000, 7680, 9792, + 9968, 10560, 0, 4320, 4336, 4356, 4500, 0, + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC), + .vrefresh = 100, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, }, + /* 201 - 7680x4320@120Hz 16:9 */ + { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 4752000, 7680, 8032, + 8208, 8800, 0, 4320, 4336, 4356, 4500, 0, + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC), + .vrefresh = 120, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, }, + /* 202 - 7680x4320@24Hz 64:27 */ + { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 1188000, 7680, 10232, + 10408, 11000, 0, 4320, 4336, 4356, 4500, 0, + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC), + .vrefresh = 24, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, }, + /* 203 - 7680x4320@25Hz 64:27 */ + { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 1188000, 7680, 10032, + 10208, 10800, 0, 4320, 4336, 4356, 4400, 0, + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC), + .vrefresh = 25, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, }, + /* 204 - 7680x4320@30Hz 64:27 */ + { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 1188000, 7680, 8232, + 8408, 9000, 0, 4320, 4336, 4356, 4400, 0, + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC), + .vrefresh = 30, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, }, + /* 205 - 7680x4320@48Hz 64:27 */ + { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 2376000, 7680, 10232, + 10408, 11000, 0, 4320, 4336, 4356, 4500, 0, + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC), + .vrefresh = 48, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, }, + /* 206 - 7680x4320@50Hz 64:27 */ + { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 2376000, 7680, 10032, + 10208, 10800, 0, 4320, 4336, 4356, 4400, 0, + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC), + .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, }, + /* 207 - 7680x4320@60Hz 64:27 */ + { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 2376000, 7680, 8232, + 8408, 9000, 0, 4320, 4336, 4356, 4400, 0, + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC), + .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, }, + /* 208 - 7680x4320@100Hz 64:27 */ + { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 4752000, 7680, 9792, + 9968, 10560, 0, 4320, 4336, 4356, 4500, 0, + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC), + .vrefresh = 100, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, }, + /* 209 - 7680x4320@120Hz 64:27 */ + { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 4752000, 7680, 8032, + 8208, 8800, 0, 4320, 4336, 4356, 4500, 0, + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC), + .vrefresh = 120, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, }, + /* 210 - 10240x4320@24Hz 64:27 */ + { DRM_MODE("10240x4320", DRM_MODE_TYPE_DRIVER, 1485000, 10240, 11732, + 11908, 12500, 0, 4320, 4336, 4356, 4950, 0, + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC), + .vrefresh = 24, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, }, + /* 211 - 10240x4320@25Hz 64:27 */ + { DRM_MODE("10240x4320", DRM_MODE_TYPE_DRIVER, 1485000, 10240, 12732, + 12908, 13500, 0, 4320, 4336, 4356, 4400, 0, + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC), + .vrefresh = 25, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, }, + /* 212 - 10240x4320@30Hz 64:27 */ + { DRM_MODE("10240x4320", DRM_MODE_TYPE_DRIVER, 1485000, 10240, 10528, + 10704, 11000, 0, 4320, 4336, 4356, 4500, 0, + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC), + .vrefresh = 30, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, }, + /* 213 - 10240x4320@48Hz 64:27 */ + { DRM_MODE("10240x4320", DRM_MODE_TYPE_DRIVER, 2970000, 10240, 11732, + 11908, 12500, 0, 4320, 4336, 4356, 4950, 0, + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC), + .vrefresh = 48, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, }, + /* 214 - 10240x4320@50Hz 64:27 */ + { DRM_MODE("10240x4320", DRM_MODE_TYPE_DRIVER, 2970000, 10240, 12732, + 12908, 13500, 0, 4320, 4336, 4356, 4400, 0, + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC), + .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, }, + /* 215 - 10240x4320@60Hz 64:27 */ + { DRM_MODE("10240x4320", DRM_MODE_TYPE_DRIVER, 2970000, 10240, 10528, + 10704, 11000, 0, 4320, 4336, 4356, 4500, 0, + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC), + .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, }, + /* 216 - 10240x4320@100Hz 64:27 */ + { DRM_MODE("10240x4320", DRM_MODE_TYPE_DRIVER, 5940000, 10240, 12432, + 12608, 13200, 0, 4320, 4336, 4356, 4500, 0, + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC), + .vrefresh = 100, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, }, + /* 217 - 10240x4320@120Hz 64:27 */ + { DRM_MODE("10240x4320", DRM_MODE_TYPE_DRIVER, 5940000, 10240, 10528, + 10704, 11000, 0, 4320, 4336, 4356, 4500, 0, + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC), + .vrefresh = 120, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, }, + /* 218 - 4096x2160@100Hz 256:135 */ + { DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 1188000, 4096, 4896, + 4984, 5280, 0, 2160, 2168, 2178, 2250, 0, + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC), + .vrefresh = 100, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_256_135, }, + /* 219 - 4096x2160@120Hz 256:135 */ + { DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 1188000, 4096, 4184, + 4272, 4400, 0, 2160, 2168, 2178, 2250, 0, + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC), + .vrefresh = 120, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_256_135, }, +}; + /* * HDMI 1.4 4k modes. Index using the VIC. */ @@ -3076,17 +3219,21 @@ static const struct drm_display_mode *cea_mode_for_vic(u8 vic) return NULL; if (vic < ARRAY_SIZE(edid_cea_modes_0)) return &edid_cea_modes_0[vic]; + if (vic >= 193 && vic < 193 + ARRAY_SIZE(edid_cea_modes_193)) + return &edid_cea_modes_193[vic - 193]; return NULL; } static u8 cea_num_vics(void) { - return ARRAY_SIZE(edid_cea_modes_0); + return 193 + ARRAY_SIZE(edid_cea_modes_193); } static u8 cea_next_vic(u8 vic) { - return vic + 1; + if (++vic == ARRAY_SIZE(edid_cea_modes_0)) + vic = 193; + return vic; } /* -- 2.23.0 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel ^ permalink raw reply related [flat|nested] 8+ messages in thread
* [PATCH v4 3/4] drm/edid: Throw away the dummy VIC 0 cea mode 2019-12-13 17:43 [PATCH v4 0/4] drm/edid: Add new modes from CTA-861-G Ville Syrjala 2019-12-13 17:43 ` [PATCH v4 1/4] drm/edid: Abstract away cea_edid_modes[] Ville Syrjala 2019-12-13 17:43 ` [PATCH v4 2/4] drm/edid: Add CTA-861-G modes with VIC >= 193 Ville Syrjala @ 2019-12-13 17:43 ` Ville Syrjala 2019-12-13 21:05 ` Tom Anderson 2019-12-13 17:43 ` [PATCH v4 4/4] drm/edid: Make sure the CEA mode arrays have the correct amount of modes Ville Syrjala 3 siblings, 1 reply; 8+ messages in thread From: Ville Syrjala @ 2019-12-13 17:43 UTC (permalink / raw) To: dri-devel; +Cc: Hans Verkuil, Manasi Navare, intel-gfx, Tom Anderson From: Ville Syrjälä <ville.syrjala@linux.intel.com> Now that the cea mode handling is not 100% tied to the single array the dummy VIC 0 mode is pretty much pointles. Throw it out. v2: Rebase Cc: Tom Anderson <thomasanderson@google.com> Cc: Hans Verkuil <hansverk@cisco.com> Cc: Manasi Navare <manasi.d.navare@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> --- drivers/gpu/drm/drm_edid.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 2787ad0ef881..8bc69da53c2e 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -714,9 +714,7 @@ static const struct minimode extra_modes[] = { * * Do not access directly, instead always use cea_mode_for_vic(). */ -static const struct drm_display_mode edid_cea_modes_0[] = { - /* 0 - dummy, VICs start at 1 */ - { }, +static const struct drm_display_mode edid_cea_modes_1[] = { /* 1 - 640x480@60Hz 4:3 */ { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656, 752, 800, 0, 480, 490, 492, 525, 0, @@ -3215,10 +3213,8 @@ static u8 *drm_find_cea_extension(const struct edid *edid) static const struct drm_display_mode *cea_mode_for_vic(u8 vic) { - if (!vic) - return NULL; - if (vic < ARRAY_SIZE(edid_cea_modes_0)) - return &edid_cea_modes_0[vic]; + if (vic >= 1 && vic < 1 + ARRAY_SIZE(edid_cea_modes_1)) + return &edid_cea_modes_1[vic - 1]; if (vic >= 193 && vic < 193 + ARRAY_SIZE(edid_cea_modes_193)) return &edid_cea_modes_193[vic - 193]; return NULL; @@ -3231,7 +3227,7 @@ static u8 cea_num_vics(void) static u8 cea_next_vic(u8 vic) { - if (++vic == ARRAY_SIZE(edid_cea_modes_0)) + if (++vic == 1 + ARRAY_SIZE(edid_cea_modes_1)) vic = 193; return vic; } -- 2.23.0 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel ^ permalink raw reply related [flat|nested] 8+ messages in thread
* Re: [PATCH v4 3/4] drm/edid: Throw away the dummy VIC 0 cea mode 2019-12-13 17:43 ` [PATCH v4 3/4] drm/edid: Throw away the dummy VIC 0 cea mode Ville Syrjala @ 2019-12-13 21:05 ` Tom Anderson 0 siblings, 0 replies; 8+ messages in thread From: Tom Anderson @ 2019-12-13 21:05 UTC (permalink / raw) To: Ville Syrjala; +Cc: Hans Verkuil, Manasi Navare, intel-gfx, dri-devel lgtm Reviewed-by: Thomas Anderson <thomasanderson@google.com> On Fri, Dec 13, 2019 at 07:43:47PM +0200, Ville Syrjala wrote: > From: Ville Syrjälä <ville.syrjala@linux.intel.com> > > Now that the cea mode handling is not 100% tied to the single > array the dummy VIC 0 mode is pretty much pointles. Throw it > out. > > v2: Rebase > > Cc: Tom Anderson <thomasanderson@google.com> > Cc: Hans Verkuil <hansverk@cisco.com> > Cc: Manasi Navare <manasi.d.navare@intel.com> > Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> > --- > drivers/gpu/drm/drm_edid.c | 12 ++++-------- > 1 file changed, 4 insertions(+), 8 deletions(-) > > diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c > index 2787ad0ef881..8bc69da53c2e 100644 > --- a/drivers/gpu/drm/drm_edid.c > +++ b/drivers/gpu/drm/drm_edid.c > @@ -714,9 +714,7 @@ static const struct minimode extra_modes[] = { > * > * Do not access directly, instead always use cea_mode_for_vic(). > */ > -static const struct drm_display_mode edid_cea_modes_0[] = { > - /* 0 - dummy, VICs start at 1 */ > - { }, > +static const struct drm_display_mode edid_cea_modes_1[] = { > /* 1 - 640x480@60Hz 4:3 */ > { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656, > 752, 800, 0, 480, 490, 492, 525, 0, > @@ -3215,10 +3213,8 @@ static u8 *drm_find_cea_extension(const struct edid *edid) > > static const struct drm_display_mode *cea_mode_for_vic(u8 vic) > { > - if (!vic) > - return NULL; > - if (vic < ARRAY_SIZE(edid_cea_modes_0)) > - return &edid_cea_modes_0[vic]; > + if (vic >= 1 && vic < 1 + ARRAY_SIZE(edid_cea_modes_1)) > + return &edid_cea_modes_1[vic - 1]; > if (vic >= 193 && vic < 193 + ARRAY_SIZE(edid_cea_modes_193)) > return &edid_cea_modes_193[vic - 193]; > return NULL; > @@ -3231,7 +3227,7 @@ static u8 cea_num_vics(void) > > static u8 cea_next_vic(u8 vic) > { > - if (++vic == ARRAY_SIZE(edid_cea_modes_0)) > + if (++vic == 1 + ARRAY_SIZE(edid_cea_modes_1)) > vic = 193; > return vic; > } > -- > 2.23.0 > _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel ^ permalink raw reply [flat|nested] 8+ messages in thread
* [PATCH v4 4/4] drm/edid: Make sure the CEA mode arrays have the correct amount of modes 2019-12-13 17:43 [PATCH v4 0/4] drm/edid: Add new modes from CTA-861-G Ville Syrjala ` (2 preceding siblings ...) 2019-12-13 17:43 ` [PATCH v4 3/4] drm/edid: Throw away the dummy VIC 0 cea mode Ville Syrjala @ 2019-12-13 17:43 ` Ville Syrjala 3 siblings, 0 replies; 8+ messages in thread From: Ville Syrjala @ 2019-12-13 17:43 UTC (permalink / raw) To: dri-devel; +Cc: Hans Verkuil, Manasi Navare, intel-gfx, Thomas Anderson From: Ville Syrjälä <ville.syrjala@linux.intel.com> We depend on a specific relationship between the VIC number and the index in the CEA mode arrays. Assert that the arrays have the expected size to make sure we've not accidentally left holes in them. v2: Pimp the BUILD_BUG_ON()s v3: Fix typos (Manasi) Cc: Hans Verkuil <hansverk@cisco.com> Reviewed-by: Manasi Navare <manasi.d.navare@intel.com> Reviewed-by: Thomas Anderson <thomasanderson@google.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> --- drivers/gpu/drm/drm_edid.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 8bc69da53c2e..ec5b88120428 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -3213,6 +3213,9 @@ static u8 *drm_find_cea_extension(const struct edid *edid) static const struct drm_display_mode *cea_mode_for_vic(u8 vic) { + BUILD_BUG_ON(1 + ARRAY_SIZE(edid_cea_modes_1) - 1 != 127); + BUILD_BUG_ON(193 + ARRAY_SIZE(edid_cea_modes_193) - 1 != 219); + if (vic >= 1 && vic < 1 + ARRAY_SIZE(edid_cea_modes_1)) return &edid_cea_modes_1[vic - 1]; if (vic >= 193 && vic < 193 + ARRAY_SIZE(edid_cea_modes_193)) -- 2.23.0 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel ^ permalink raw reply related [flat|nested] 8+ messages in thread
end of thread, other threads:[~2019-12-16 15:24 UTC | newest] Thread overview: 8+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2019-12-13 17:43 [PATCH v4 0/4] drm/edid: Add new modes from CTA-861-G Ville Syrjala 2019-12-13 17:43 ` [PATCH v4 1/4] drm/edid: Abstract away cea_edid_modes[] Ville Syrjala 2019-12-13 21:03 ` Tom Anderson 2019-12-16 15:23 ` Ville Syrjälä 2019-12-13 17:43 ` [PATCH v4 2/4] drm/edid: Add CTA-861-G modes with VIC >= 193 Ville Syrjala 2019-12-13 17:43 ` [PATCH v4 3/4] drm/edid: Throw away the dummy VIC 0 cea mode Ville Syrjala 2019-12-13 21:05 ` Tom Anderson 2019-12-13 17:43 ` [PATCH v4 4/4] drm/edid: Make sure the CEA mode arrays have the correct amount of modes Ville Syrjala
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