The helper is generic, it doesn't use the opaque EDID type struct drm_edid
and is also used by drivers that only support non-probeable displays such
as fixed panels.
These drivers add a list of modes using drm_mode_probed_add() and then set
a preferred mode using the drm_set_preferred_mode() helper.
It seems more logical to have the helper definition in drm_modes.o instead
of drm_edid.o, since the former contains modes helper while the latter has
helpers to manage the EDID information.
Since both drm_edid.o and drm_modes.o object files are built-in the drm.o
object, there are no functional changes. But besides being a more logical
place for this helper, it could also allow to eventually make drm_edid.o
optional and not included in drm.o if only fixed panels must be supported
in a given system.
Signed-off-by: Javier Martinez Canillas <[email protected]>
Reviewed-by: Jani Nikula <[email protected]>
---
Changes in v2:
- Drop unnecessary drm_modes.h header include in drm_edid.c (Jani Nikula).
- Add Jani Nikula's Reviewed-by tag.
drivers/gpu/drm/drm_edid.c | 22 ----------------------
drivers/gpu/drm/drm_modes.c | 22 ++++++++++++++++++++++
include/drm/drm_edid.h | 2 --
include/drm/drm_modes.h | 2 ++
4 files changed, 24 insertions(+), 24 deletions(-)
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index cb4031d5dcbb..e677dc8eb7a9 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -6989,28 +6989,6 @@ int drm_add_modes_noedid(struct drm_connector *connector,
}
EXPORT_SYMBOL(drm_add_modes_noedid);
-/**
- * drm_set_preferred_mode - Sets the preferred mode of a connector
- * @connector: connector whose mode list should be processed
- * @hpref: horizontal resolution of preferred mode
- * @vpref: vertical resolution of preferred mode
- *
- * Marks a mode as preferred if it matches the resolution specified by @hpref
- * and @vpref.
- */
-void drm_set_preferred_mode(struct drm_connector *connector,
- int hpref, int vpref)
-{
- struct drm_display_mode *mode;
-
- list_for_each_entry(mode, &connector->probed_modes, head) {
- if (mode->hdisplay == hpref &&
- mode->vdisplay == vpref)
- mode->type |= DRM_MODE_TYPE_PREFERRED;
- }
-}
-EXPORT_SYMBOL(drm_set_preferred_mode);
-
static bool is_hdmi2_sink(const struct drm_connector *connector)
{
/*
diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
index ac9a406250c5..01aa44e87534 100644
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c
@@ -2754,3 +2754,25 @@ bool drm_mode_is_420(const struct drm_display_info *display,
drm_mode_is_420_also(display, mode);
}
EXPORT_SYMBOL(drm_mode_is_420);
+
+/**
+ * drm_set_preferred_mode - Sets the preferred mode of a connector
+ * @connector: connector whose mode list should be processed
+ * @hpref: horizontal resolution of preferred mode
+ * @vpref: vertical resolution of preferred mode
+ *
+ * Marks a mode as preferred if it matches the resolution specified by @hpref
+ * and @vpref.
+ */
+void drm_set_preferred_mode(struct drm_connector *connector,
+ int hpref, int vpref)
+{
+ struct drm_display_mode *mode;
+
+ list_for_each_entry(mode, &connector->probed_modes, head) {
+ if (mode->hdisplay == hpref &&
+ mode->vdisplay == vpref)
+ mode->type |= DRM_MODE_TYPE_PREFERRED;
+ }
+}
+EXPORT_SYMBOL(drm_set_preferred_mode);
diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h
index 54cc6f04a708..5bd6b6eb6c57 100644
--- a/include/drm/drm_edid.h
+++ b/include/drm/drm_edid.h
@@ -426,8 +426,6 @@ enum hdmi_quantization_range
drm_default_rgb_quant_range(const struct drm_display_mode *mode);
int drm_add_modes_noedid(struct drm_connector *connector,
int hdisplay, int vdisplay);
-void drm_set_preferred_mode(struct drm_connector *connector,
- int hpref, int vpref);
int drm_edid_header_is_valid(const void *edid);
bool drm_edid_block_valid(u8 *raw_edid, int block, bool print_bad_edid,
diff --git a/include/drm/drm_modes.h b/include/drm/drm_modes.h
index c613f0abe9dc..b9bb92e4b029 100644
--- a/include/drm/drm_modes.h
+++ b/include/drm/drm_modes.h
@@ -467,6 +467,8 @@ bool drm_mode_is_420_also(const struct drm_display_info *display,
const struct drm_display_mode *mode);
bool drm_mode_is_420(const struct drm_display_info *display,
const struct drm_display_mode *mode);
+void drm_set_preferred_mode(struct drm_connector *connector,
+ int hpref, int vpref);
struct drm_display_mode *drm_analog_tv_mode(struct drm_device *dev,
enum drm_connector_tv_mode mode,
--
2.43.0
Javier Martinez Canillas <[email protected]> writes:
> The helper is generic, it doesn't use the opaque EDID type struct drm_edid
> and is also used by drivers that only support non-probeable displays such
> as fixed panels.
>
> These drivers add a list of modes using drm_mode_probed_add() and then set
> a preferred mode using the drm_set_preferred_mode() helper.
>
> It seems more logical to have the helper definition in drm_modes.o instead
> of drm_edid.o, since the former contains modes helper while the latter has
> helpers to manage the EDID information.
>
> Since both drm_edid.o and drm_modes.o object files are built-in the drm.o
> object, there are no functional changes. But besides being a more logical
> place for this helper, it could also allow to eventually make drm_edid.o
> optional and not included in drm.o if only fixed panels must be supported
> in a given system.
>
> Signed-off-by: Javier Martinez Canillas <[email protected]>
> Reviewed-by: Jani Nikula <[email protected]>
> ---
Pushed to drm-misc (drm-misc-next). Thanks!
--
Best regards,
Javier Martinez Canillas
Core Platforms
Red Hat