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authorVille Syrjälä <ville.syrjala@linux.intel.com>2018-06-28 16:13:09 +0300
committerVille Syrjälä <ville.syrjala@linux.intel.com>2018-07-05 16:52:07 +0300
commit83aefbb887b59df0b3520965c3701e01deacfc52 (patch)
tree2ae00e1b761979767560fd7e989070e27f4137c7 /drivers/gpu/drm/drm_fb_helper.c
parent20431c05ae682ff2ad387945738fc129d9751d6e (diff)
drm: Add drm_connector_for_each_possible_encoder()
Add a convenience macro for iterating connector->encoder_ids[]. Isolates the users from the implementation details. Note that we don't seem to pass the file_priv down to drm_encoder_find() because encoders apparently don't get leased. No idea why drm_encoder_finc() even takes the file_priv actually. Also use ARRAY_SIZE() when populating the array to avoid spreading knowledge about the array size all over. v2: Hide the drm_encoder_find() in the macro, and rename the macro appropriately (Daniel) v3: Fix kernel docs (Daniel) Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180628131315.14156-4-ville.syrjala@linux.intel.com Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/drm_fb_helper.c')
-rw-r--r--drivers/gpu/drm/drm_fb_helper.c11
1 files changed, 2 insertions, 9 deletions
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index b37f06317d51..d697c1c4a067 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -2326,17 +2326,10 @@ retry:
static bool connector_has_possible_crtc(struct drm_connector *connector,
struct drm_crtc *crtc)
{
+ struct drm_encoder *encoder;
int i;
- for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
- struct drm_encoder *encoder;
-
- if (connector->encoder_ids[i] == 0)
- break;
-
- encoder = drm_encoder_find(connector->dev, NULL,
- connector->encoder_ids[i]);
-
+ drm_connector_for_each_possible_encoder(connector, encoder, i) {
if (encoder->possible_crtcs & drm_crtc_mask(crtc))
return true;
}