Set writeback encoders as possible clones for DSI encoders and vice
versa.
Reviewed-by: Dmitry Baryshkov <dmitry.barysh...@linaro.org>
Reviewed-by: Abhinav Kumar <quic_abhin...@quicinc.com>
Signed-off-by: Jessica Zhang <quic_jessz...@quicinc.com>
---
drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 32 +++++++++++++++++++++++++++++
drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h | 2 ++
drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 7 +++++--
3 files changed, 39 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
index
ee740cc881c483370336d84361c2fab7143ff2fc..df4ae6fe0c562983729a79cddc8b9e4306db768a
100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
@@ -2557,6 +2557,38 @@ static int dpu_encoder_virt_add_phys_encs(
return 0;
}
+/**
+ * dpu_encoder_get_clones - Calculate the possible_clones for DPU encoder
+ * @drm_enc: DRM encoder pointer
+ * Returns: possible_clones mask
+ */
+uint32_t dpu_encoder_get_clones(struct drm_encoder *drm_enc)
+{
+ struct drm_encoder *curr;
+ int type = drm_enc->encoder_type;
+ uint32_t clone_mask = drm_encoder_mask(drm_enc);
+
+ /*
+ * Set writeback as possible clones of real-time DSI encoders and vice
+ * versa
+ *
+ * Writeback encoders can't be clones of each other and DSI
+ * encoders can't be clones of each other.
+ *
+ * TODO: Add DP encoders as valid possible clones for writeback encoders
+ * (and vice versa) once concurrent writeback has been validated for DP
+ */
+ drm_for_each_encoder(curr, drm_enc->dev) {
+ if ((type == DRM_MODE_ENCODER_VIRTUAL &&
+ curr->encoder_type == DRM_MODE_ENCODER_DSI) ||
+ (type == DRM_MODE_ENCODER_DSI &&
+ curr->encoder_type == DRM_MODE_ENCODER_VIRTUAL))
+ clone_mask |= drm_encoder_mask(curr);
+ }
+
+ return clone_mask;
+}
+
static int dpu_encoder_setup_display(struct dpu_encoder_virt *dpu_enc,
struct dpu_kms *dpu_kms,
struct msm_display_info *disp_info)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h
b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h
index
8503386bb50330a38b065c32d259de18166464d6..ca1ca2e51d7ead0eb34b27f3168e6bb06a71a11a
100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h
@@ -60,6 +60,8 @@ enum dpu_intf_mode dpu_encoder_get_intf_mode(struct
drm_encoder *encoder);
void dpu_encoder_virt_runtime_resume(struct drm_encoder *encoder);
+uint32_t dpu_encoder_get_clones(struct drm_encoder *drm_enc);
+
struct drm_encoder *dpu_encoder_init(struct drm_device *dev,
int drm_enc_mode,
struct msm_display_info *disp_info);
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
index
423af6f8251cb9c7c07f5a9878c8abc717d947a4..ec40405b27a1b53d44142c5f84e62bed878a0f6d
100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
@@ -2,7 +2,7 @@
/*
* Copyright (C) 2013 Red Hat
* Copyright (c) 2014-2018, The Linux Foundation. All rights reserved.
- * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights
reserved.
*
* Author: Rob Clark <robdcl...@gmail.com>
*/
@@ -824,8 +824,11 @@ static int _dpu_kms_drm_obj_init(struct dpu_kms *dpu_kms)
return ret;
num_encoders = 0;
- drm_for_each_encoder(encoder, dev)
+ drm_for_each_encoder(encoder, dev) {
num_encoders++;
+ if (catalog->cwb_count > 0)
+ encoder->possible_clones =
dpu_encoder_get_clones(encoder);
+ }
max_crtc_count = min(catalog->mixer_count, num_encoders);
--
2.34.1
