From: Baihan Li <[email protected]>
If VGA and DP connected together, there will be only one can get crtc.
Add encoder possible_clones to support two connectors enable.
Fixes: 0ab6ea261c1f ("drm/hisilicon/hibmc: add dp module in hibmc")
Fixes: 3c7623fb5bb6 ("drm/hisilicon/hibmc: Enable this hot plug detect of irq
feature")
Signed-off-by: Baihan Li <[email protected]>
Signed-off-by: Yongbang Shi <[email protected]>
---
ChangeLog:
v1 -> v2:
- don't tie VGA and DP status, suggested by Dmitry Baryshkov.
- use crtc clone to let 2 connectors can display simultaneous
---
drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
index ac552c339671..289304500ab0 100644
--- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
+++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
@@ -115,6 +115,8 @@ static const struct drm_mode_config_funcs hibmc_mode_funcs
= {
static int hibmc_kms_init(struct hibmc_drm_private *priv)
{
struct drm_device *dev = &priv->dev;
+ struct drm_encoder *encoder;
+ u32 clone_mask = 0;
int ret;
ret = drmm_mode_config_init(dev);
@@ -154,6 +156,12 @@ static int hibmc_kms_init(struct hibmc_drm_private *priv)
return ret;
}
+ drm_for_each_encoder(encoder, dev)
+ clone_mask |= drm_encoder_mask(encoder);
+
+ drm_for_each_encoder(encoder, dev)
+ encoder->possible_clones = clone_mask;
+
return 0;
}
--
2.33.0
