[v3,1/4] drm/edid: Abstract away cea_edid_modes[]
diff mbox series

Message ID 20190925135502.24055-2-ville.syrjala@linux.intel.com
State New
Headers show
Series
  • drm/edid: Add new modes from CTA-861-G
Related show

Commit Message

Ville Syrjälä Sept. 25, 2019, 1:54 p.m. UTC
From: Ville Syrjälä <ville.syrjala@linux.intel.com>

We're going to need two cea mode tables (on 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 indicathe how it's to be
indexed.

Cc: Hans Verkuil <hansverk@cisco.com>
Cc: Shashank Sharma <shashank.sharma@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 drivers/gpu/drm/drm_edid.c | 80 +++++++++++++++++++++++++++-----------
 1 file changed, 58 insertions(+), 22 deletions(-)

Comments

Sharma, Shashank Oct. 3, 2019, 8:16 a.m. UTC | #1
Hello Ville,

On 9/25/2019 7:24 PM, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrjala@linux.intel.com>
>
> We're going to need two cea mode tables (on 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 indicathe how it's to be
Should we call it something which indicates the spec version, instead of 
a random '0', like edid_cea_861_F_modes[] and the next one as _G_modes 
or CTA_3 modes ?
> indexed.
>
> Cc: Hans Verkuil <hansverk@cisco.com>
> Cc: Shashank Sharma <shashank.sharma@intel.com>
> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
> ---
>   drivers/gpu/drm/drm_edid.c | 80 +++++++++++++++++++++++++++-----------
>   1 file changed, 58 insertions(+), 22 deletions(-)
>
> diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
> index 3c9703b08491..b700fc075257 100644
> --- a/drivers/gpu/drm/drm_edid.c
> +++ b/drivers/gpu/drm/drm_edid.c
> @@ -707,12 +707,11 @@ 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.
> + * Index with 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 */
> @@ -3067,6 +3066,25 @@ 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;
Is there any specific reason for adding a new helper function, just to 
return vic + 1 ?
> +}
> +
>   /*
>    * Calculate the alternate clock for the CEA mode
>    * (60Hz vs. 59.94Hz etc.)
> @@ -3104,14 +3122,14 @@ 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) ||
> @@ -3139,10 +3157,16 @@ 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)) {
> +		const struct drm_display_mode *mode = cea_mode_for_vic(vic);
> +		struct drm_display_mode cea_mode;
>   		unsigned int clock1, clock2;
>   
> +		if (!mode)
> +			continue;
> +
> +		cea_mode = *mode;
> +
>   		/* Check both 60Hz and 59.94Hz */
>   		clock1 = cea_mode.clock;
>   		clock2 = cea_mode_alternate_clock(&cea_mode);
> @@ -3178,10 +3202,16 @@ 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)) {
Again, why not just vic+=1 :) ?
> +		const struct drm_display_mode *mode = cea_mode_for_vic(vic);
> +		struct drm_display_mode cea_mode;
>   		unsigned int clock1, clock2;
>   
> +		if (!mode)
> +			continue;
> +
> +		cea_mode = *mode;
> +
>   		/* Check both 60Hz and 59.94Hz */
>   		clock1 = cea_mode.clock;
>   		clock2 = cea_mode_alternate_clock(&cea_mode);
> @@ -3202,7 +3232,7 @@ 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;
>   }
>   
>   /**
> @@ -3214,7 +3244,13 @@ static bool drm_valid_cea_vic(u8 vic)
>    */
>   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;
> +
> +	mode = cea_mode_for_vic(video_code);
> +	if (mode)
> +		return mode->picture_aspect_ratio;
> +
> +	return HDMI_PICTURE_ASPECT_NONE;
>   }
>   EXPORT_SYMBOL(drm_get_cea_aspect_ratio);
>   
> @@ -3323,7 +3359,7 @@ 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 +3434,7 @@ 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 +3468,7 @@ 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 +4037,7 @@ 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 {
- Shashank
Ville Syrjälä Oct. 3, 2019, 1:55 p.m. UTC | #2
On Thu, Oct 03, 2019 at 01:46:16PM +0530, Sharma, Shashank wrote:
> Hello Ville,
> 
> On 9/25/2019 7:24 PM, Ville Syrjala wrote:
> > From: Ville Syrjälä <ville.syrjala@linux.intel.com>
> >
> > We're going to need two cea mode tables (on 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 indicathe how it's to be
> Should we call it something which indicates the spec version, instead of 
> a random '0', like edid_cea_861_F_modes[] and the next one as _G_modes 
> or CTA_3 modes ?

The spec version is not particularly interesting. New specs just add more
modes. If we really want to indicate that somehow I think a few comments
would do.

> > indexed.
> >
> > Cc: Hans Verkuil <hansverk@cisco.com>
> > Cc: Shashank Sharma <shashank.sharma@intel.com>
> > Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
> > ---
> >   drivers/gpu/drm/drm_edid.c | 80 +++++++++++++++++++++++++++-----------
> >   1 file changed, 58 insertions(+), 22 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
> > index 3c9703b08491..b700fc075257 100644
> > --- a/drivers/gpu/drm/drm_edid.c
> > +++ b/drivers/gpu/drm/drm_edid.c
> > @@ -707,12 +707,11 @@ 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.
> > + * Index with 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 */
> > @@ -3067,6 +3066,25 @@ 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;
> Is there any specific reason for adding a new helper function, just to 
> return vic + 1 ?

See the next patch.

> > +}
> > +
> >   /*
> >    * Calculate the alternate clock for the CEA mode
> >    * (60Hz vs. 59.94Hz etc.)
> > @@ -3104,14 +3122,14 @@ 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) ||
> > @@ -3139,10 +3157,16 @@ 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)) {
> > +		const struct drm_display_mode *mode = cea_mode_for_vic(vic);
> > +		struct drm_display_mode cea_mode;
> >   		unsigned int clock1, clock2;
> >   
> > +		if (!mode)
> > +			continue;
> > +
> > +		cea_mode = *mode;
> > +
> >   		/* Check both 60Hz and 59.94Hz */
> >   		clock1 = cea_mode.clock;
> >   		clock2 = cea_mode_alternate_clock(&cea_mode);
> > @@ -3178,10 +3202,16 @@ 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)) {
> Again, why not just vic+=1 :) ?
> > +		const struct drm_display_mode *mode = cea_mode_for_vic(vic);
> > +		struct drm_display_mode cea_mode;
> >   		unsigned int clock1, clock2;
> >   
> > +		if (!mode)
> > +			continue;
> > +
> > +		cea_mode = *mode;
> > +
> >   		/* Check both 60Hz and 59.94Hz */
> >   		clock1 = cea_mode.clock;
> >   		clock2 = cea_mode_alternate_clock(&cea_mode);
> > @@ -3202,7 +3232,7 @@ 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;
> >   }
> >   
> >   /**
> > @@ -3214,7 +3244,13 @@ static bool drm_valid_cea_vic(u8 vic)
> >    */
> >   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;
> > +
> > +	mode = cea_mode_for_vic(video_code);
> > +	if (mode)
> > +		return mode->picture_aspect_ratio;
> > +
> > +	return HDMI_PICTURE_ASPECT_NONE;
> >   }
> >   EXPORT_SYMBOL(drm_get_cea_aspect_ratio);
> >   
> > @@ -3323,7 +3359,7 @@ 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 +3434,7 @@ 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 +3468,7 @@ 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 +4037,7 @@ 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 {
> - Shashank

Patch
diff mbox series

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 3c9703b08491..b700fc075257 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -707,12 +707,11 @@  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.
+ * Index with 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 */
@@ -3067,6 +3066,25 @@  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.)
@@ -3104,14 +3122,14 @@  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) ||
@@ -3139,10 +3157,16 @@  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)) {
+		const struct drm_display_mode *mode = cea_mode_for_vic(vic);
+		struct drm_display_mode cea_mode;
 		unsigned int clock1, clock2;
 
+		if (!mode)
+			continue;
+
+		cea_mode = *mode;
+
 		/* Check both 60Hz and 59.94Hz */
 		clock1 = cea_mode.clock;
 		clock2 = cea_mode_alternate_clock(&cea_mode);
@@ -3178,10 +3202,16 @@  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)) {
+		const struct drm_display_mode *mode = cea_mode_for_vic(vic);
+		struct drm_display_mode cea_mode;
 		unsigned int clock1, clock2;
 
+		if (!mode)
+			continue;
+
+		cea_mode = *mode;
+
 		/* Check both 60Hz and 59.94Hz */
 		clock1 = cea_mode.clock;
 		clock2 = cea_mode_alternate_clock(&cea_mode);
@@ -3202,7 +3232,7 @@  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;
 }
 
 /**
@@ -3214,7 +3244,13 @@  static bool drm_valid_cea_vic(u8 vic)
  */
 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;
+
+	mode = cea_mode_for_vic(video_code);
+	if (mode)
+		return mode->picture_aspect_ratio;
+
+	return HDMI_PICTURE_ASPECT_NONE;
 }
 EXPORT_SYMBOL(drm_get_cea_aspect_ratio);
 
@@ -3323,7 +3359,7 @@  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 +3434,7 @@  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 +3468,7 @@  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 +4037,7 @@  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 {