[RFC PATCH 09/13] drm/msm/disp/dpu1: Dont use DSC with mode_3d

Vinod Koul
2021-05-21T12:52:21Z

We cannot enable mode_3d when we are using the DSC. So pass
configuration to detect DSC is enabled and not enable mode_3d
when we are using DSC

We add a helper dpu_encoder_helper_get_dsc_mode() to detect dsc
enabled and pass this to .setup_intf_cfg()

Signed-off-by: Vinod Koul <vkoul@kernel.org>
---
drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h | 11 +++++++++++
drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c | 2 ++
drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c | 5 +++--
drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h | 2 ++
4 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h
index ecbc4be98980..d43b804528eb 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h
@@ -336,6 +336,17 @@ static inline enum dpu_3d_blend_mode dpu_encoder_helper_get_3d_blend_mode(
return BLEND_3D_NONE;
}

+static inline bool dpu_encoder_helper_get_dsc_mode(struct dpu_encoder_phys *phys_enc)
+{
+ struct drm_encoder *drm_enc = phys_enc->parent;
+ struct msm_drm_private *priv = drm_enc->dev->dev_private;
+
+ if (priv->dsc)
+ return true;
+
+ return false;
+}
+
/**
* dpu_encoder_helper_split_config - split display configuration helper function
* This helper function may be used by physical encoders to configure
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c
index b2be39b9144e..5fe87881c30c 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c
@@ -69,6 +69,8 @@ static void _dpu_encoder_phys_cmd_update_intf_cfg(
intf_cfg.intf_mode_sel = DPU_CTL_MODE_SEL_CMD;
intf_cfg.stream_sel = cmd_enc->stream_sel;
intf_cfg.mode_3d = dpu_encoder_helper_get_3d_blend_mode(phys_enc);
+ intf_cfg.dsc = dpu_encoder_helper_get_dsc_mode(phys_enc);
+
ctl->ops.setup_intf_cfg(ctl, &intf_cfg);
}

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c
index aeea6add61ee..f059416311ee 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c
@@ -121,7 +121,7 @@ static u32 dpu_hw_ctl_get_pending_flush(struct dpu_hw_ctl *ctx)
return ctx->pending_flush_mask;
}

-static inline void dpu_hw_ctl_trigger_flush_v1(struct dpu_hw_ctl *ctx)
+static void dpu_hw_ctl_trigger_flush_v1(struct dpu_hw_ctl *ctx)
{
DPU_REG_WRITE(&ctx->hw, CTL_DSC_FLUSH, BIT(0) | BIT(1) | BIT(2) | BIT(3));

@@ -522,7 +522,8 @@ static void dpu_hw_ctl_intf_cfg(struct dpu_hw_ctl *ctx,

intf_cfg |= (cfg->intf & 0xF) << 4;

- if (cfg->mode_3d) {
+ /* In DSC we can't set merge, so check for dsc too */
+ if (cfg->mode_3d && !cfg->dsc) {
intf_cfg |= BIT(19);
intf_cfg |= (cfg->mode_3d - 0x1) << 20;
}
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h
index 806c171e5df2..347a653c1e01 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h
@@ -39,6 +39,7 @@ struct dpu_hw_stage_cfg {
* @mode_3d: 3d mux configuration
* @merge_3d: 3d merge block used
* @intf_mode_sel: Interface mode, cmd / vid
+ * @dsc: DSC is enabled
* @stream_sel: Stream selection for multi-stream interfaces
*/
struct dpu_hw_intf_cfg {
@@ -46,6 +47,7 @@ struct dpu_hw_intf_cfg {
enum dpu_3d_blend_mode mode_3d;
enum dpu_merge_3d merge_3d;
enum dpu_ctl_mode_sel intf_mode_sel;
+ bool dsc;
int stream_sel;
};

--
2.26.3