[PATCH 5.16 013/285] drm/edid: improve non-desktop quirk logging

Greg Kroah-Hartman
2022-04-12T07:35:08Z

From: Jani Nikula <jani.nikula@intel.com>

[ Upstream commit ce99534e978d4a36787dbe5e5c57749d12e6bf4a ]

Improve non-desktop quirk logging if the EDID indicates non-desktop. If
both are set, note about redundant quirk. If there's no quirk but the
EDID indicates non-desktop, don't log non-desktop is set to 0.

Cc: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Philipp Zabel <philipp.zabel@gmail.com>
Tested-by: Philipp Zabel <philipp.zabel@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211228101051.317989-1-jani.nikula@intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/drm_edid.c | 17 ++++++++++-------
1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index a71b82668a98..83e5c115e754 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -5325,17 +5325,13 @@ u32 drm_add_display_info(struct drm_connector *connector, const struct edid *edi
info->width_mm = edid->width_cm * 10;
info->height_mm = edid->height_cm * 10;

- info->non_desktop = !!(quirks & EDID_QUIRK_NON_DESKTOP);
-
drm_get_monitor_range(connector, edid);

- DRM_DEBUG_KMS("non_desktop set to %d\n", info->non_desktop);
-
if (edid->revision < 3)
- return quirks;
+ goto out;

if (!(edid->input & DRM_EDID_INPUT_DIGITAL))
- return quirks;
+ goto out;

info->color_formats |= DRM_COLOR_FORMAT_RGB444;
drm_parse_cea_ext(connector, edid);
@@ -5356,7 +5352,7 @@ u32 drm_add_display_info(struct drm_connector *connector, const struct edid *edi

/* Only defined for 1.4 with digital displays */
if (edid->revision < 4)
- return quirks;
+ goto out;

switch (edid->input & DRM_EDID_DIGITAL_DEPTH_MASK) {
case DRM_EDID_DIGITAL_DEPTH_6:
@@ -5393,6 +5389,13 @@ u32 drm_add_display_info(struct drm_connector *connector, const struct edid *edi

drm_update_mso(connector, edid);

+out:
+ if (quirks & EDID_QUIRK_NON_DESKTOP) {
+ drm_dbg_kms(connector->dev, "Non-desktop display%s\n",
+ info->non_desktop ? " (redundant quirk)" : "");
+ info->non_desktop = true;
+ }
+
return quirks;
}

--
2.35.1