korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2025-01-27 00:04:47 +08:00
Code Issues Packages Projects Releases Wiki Activity

drm/nouveau/kms/nv50-: Get rid of bogus nouveau_conn_mode_valid()

Browse Source 
Ville also pointed out that I got a lot of the logic here wrong as well, whoops.
While I don't think anyone's likely using 3D output with nouveau, the next patch
will make nouveau_conn_mode_valid() make a lot less sense. So, let's just get
rid of it and open-code it like before, while taking care to move the 3D frame
packing calculations on the dot clock into the right place.

Signed-off-by: Lyude Paul <lyude@redhat.com>
Fixes: d6a9efece7 ("drm/nouveau/kms/nv50-: Share DP SST mode_valid() handling with MST")
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: <stable@vger.kernel.org> # v5.8+
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Lyude Paul 2020-09-29 18:31:31 -04:00 committed by Ben Skeggs
parent dcd292c172
commit 2d831155cf
2 changed files with 21 additions and 31 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
drivers/gpu/drm/nouveau/nouveau_connector.c
View File

@ -1023,29 +1023,6 @@ get_tmds_link_bandwidth(struct drm_connector *connector)
return 112000 * duallink_scale;
}
enum drm_mode_status
nouveau_conn_mode_clock_valid(const struct drm_display_mode *mode,
const unsigned min_clock,
const unsigned max_clock,
unsigned int *clock_out)
{
unsigned int clock = mode->clock;
if ((mode->flags & DRM_MODE_FLAG_3D_MASK) ==
DRM_MODE_FLAG_3D_FRAME_PACKING)
clock *= 2;
if (clock < min_clock)
return MODE_CLOCK_LOW;
if (clock > max_clock)
return MODE_CLOCK_HIGH;
if (clock_out)
*clock_out = clock;
return MODE_OK;
}
static enum drm_mode_status
nouveau_connector_mode_valid(struct drm_connector *connector,
struct drm_display_mode *mode)
@ -1053,7 +1030,7 @@ nouveau_connector_mode_valid(struct drm_connector *connector,
struct nouveau_connector *nv_connector = nouveau_connector(connector);
struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
unsigned min_clock = 25000, max_clock = min_clock;
unsigned int min_clock = 25000, max_clock = min_clock, clock = mode->clock;
switch (nv_encoder->dcb->type) {
case DCB_OUTPUT_LVDS:
@ -1082,8 +1059,15 @@ nouveau_connector_mode_valid(struct drm_connector *connector,
return MODE_BAD;
}
return nouveau_conn_mode_clock_valid(mode, min_clock, max_clock,
NULL);
if ((mode->flags & DRM_MODE_FLAG_3D_MASK) == DRM_MODE_FLAG_3D_FRAME_PACKING)
clock *= 2;
if (clock < min_clock)
return MODE_CLOCK_LOW;
if (clock > max_clock)
return MODE_CLOCK_HIGH;
return MODE_OK;
}
static struct drm_encoder *

16
drivers/gpu/drm/nouveau/nouveau_dp.c
View File

@ -232,12 +232,14 @@ nv50_dp_mode_valid(struct drm_connector *connector,
unsigned *out_clock)
{
const unsigned min_clock = 25000;
unsigned max_clock, ds_clock, clock;
enum drm_mode_status ret;
unsigned max_clock, ds_clock, clock = mode->clock;
if (mode->flags & DRM_MODE_FLAG_INTERLACE && !outp->caps.dp_interlace)
return MODE_NO_INTERLACE;
if ((mode->flags & DRM_MODE_FLAG_3D_MASK) == DRM_MODE_FLAG_3D_FRAME_PACKING)
clock *= 2;
max_clock = outp->dp.link_nr * outp->dp.link_bw;
ds_clock = drm_dp_downstream_max_dotclock(outp->dp.dpcd,
outp->dp.downstream_ports);
@ -245,9 +247,13 @@ nv50_dp_mode_valid(struct drm_connector *connector,
max_clock = min(max_clock, ds_clock);
clock = mode->clock * (connector->display_info.bpc * 3) / 10;
ret = nouveau_conn_mode_clock_valid(mode, min_clock, max_clock,
&clock);
if (clock < min_clock)
return MODE_CLOCK_LOW;
if (clock > max_clock)
return MODE_CLOCK_HIGH;
if (out_clock)
*out_clock = clock;
return ret;
return MODE_OK;
}