In the H3 ES2.0 SoC the VSP2-DL instance has two connections to DU
channels that need to be configured independently. Extend the VSP-DU API
with a pipeline index to identify which pipeline the caller wants to
operate on.

Signed-off-by: Laurent Pinchart <laurent.pinchart+rene...@ideasonboard.com>
---
 drivers/gpu/drm/rcar-du/rcar_du_vsp.c  |  9 +++++----
 drivers/media/platform/vsp1/vsp1_drm.c | 28 +++++++++++++++++++---------
 include/media/vsp1.h                   |  8 +++++---
 3 files changed, 29 insertions(+), 16 deletions(-)

diff --git a/drivers/gpu/drm/rcar-du/rcar_du_vsp.c 
b/drivers/gpu/drm/rcar-du/rcar_du_vsp.c
index b0ff304ce3dc..1b62b58f11ee 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_vsp.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_vsp.c
@@ -70,22 +70,22 @@ void rcar_du_vsp_enable(struct rcar_du_crtc *crtc)
         */
        crtc->group->need_restart = true;
 
-       vsp1_du_setup_lif(crtc->vsp->vsp, &cfg);
+       vsp1_du_setup_lif(crtc->vsp->vsp, 0, &cfg);
 }
 
 void rcar_du_vsp_disable(struct rcar_du_crtc *crtc)
 {
-       vsp1_du_setup_lif(crtc->vsp->vsp, NULL);
+       vsp1_du_setup_lif(crtc->vsp->vsp, 0, NULL);
 }
 
 void rcar_du_vsp_atomic_begin(struct rcar_du_crtc *crtc)
 {
-       vsp1_du_atomic_begin(crtc->vsp->vsp);
+       vsp1_du_atomic_begin(crtc->vsp->vsp, 0);
 }
 
 void rcar_du_vsp_atomic_flush(struct rcar_du_crtc *crtc)
 {
-       vsp1_du_atomic_flush(crtc->vsp->vsp);
+       vsp1_du_atomic_flush(crtc->vsp->vsp, 0);
 }
 
 /* Keep the two tables in sync. */
@@ -153,6 +153,7 @@ static void rcar_du_vsp_plane_setup(struct 
rcar_du_vsp_plane *plane)
                to_rcar_vsp_plane_state(plane->plane.state);
        struct drm_framebuffer *fb = plane->plane.state->fb;
        struct vsp1_du_atomic_config cfg = {
+               .pipe = 0,
                .pixelformat = 0,
                .pitch = fb->pitches[0],
                .alpha = state->alpha,
diff --git a/drivers/media/platform/vsp1/vsp1_drm.c 
b/drivers/media/platform/vsp1/vsp1_drm.c
index 9d235e830f5a..7699fa787b80 100644
--- a/drivers/media/platform/vsp1/vsp1_drm.c
+++ b/drivers/media/platform/vsp1/vsp1_drm.c
@@ -54,21 +54,26 @@ EXPORT_SYMBOL_GPL(vsp1_du_init);
 /**
  * vsp1_du_setup_lif - Setup the output part of the VSP pipeline
  * @dev: the VSP device
+ * @pipe_index: the DRM pipeline index
  * @cfg: the LIF configuration
  *
  * Configure the output part of VSP DRM pipeline for the given frame @cfg.width
- * and @cfg.height. This sets up formats on the BRU source pad, the WPF0 sink
- * and source pads, and the LIF sink pad.
+ * and @cfg.height. This sets up formats on the blend unit (BRU or BRS) source
+ * pad, the WPF sink and source pads, and the LIF sink pad.
  *
- * As the media bus code on the BRU source pad is conditioned by the
- * configuration of the BRU sink 0 pad, we also set up the formats on all BRU
+ * The @pipe_index argument selects which DRM pipeline to setup. The number of
+ * available pipelines depend on the VSP instance.
+ *
+ * As the media bus code on the blend unit source pad is conditioned by the
+ * configuration of its sink 0 pad, we also set up the formats on all blend 
unit
  * sinks, even if the configuration will be overwritten later by
- * vsp1_du_setup_rpf(). This ensures that the BRU configuration is set to a 
well
- * defined state.
+ * vsp1_du_setup_rpf(). This ensures that the blend unit configuration is set 
to
+ * a well defined state.
  *
  * Return 0 on success or a negative error code on failure.
  */
-int vsp1_du_setup_lif(struct device *dev, const struct vsp1_du_lif_config *cfg)
+int vsp1_du_setup_lif(struct device *dev, unsigned int pipe_index,
+                     const struct vsp1_du_lif_config *cfg)
 {
        struct vsp1_device *vsp1 = dev_get_drvdata(dev);
        struct vsp1_pipeline *pipe = &vsp1->drm->pipe;
@@ -77,6 +82,9 @@ int vsp1_du_setup_lif(struct device *dev, const struct 
vsp1_du_lif_config *cfg)
        unsigned int i;
        int ret;
 
+       if (pipe_index > 0)
+               return -EINVAL;
+
        if (!cfg) {
                /*
                 * NULL configuration means the CRTC is being disabled, stop
@@ -216,8 +224,9 @@ EXPORT_SYMBOL_GPL(vsp1_du_setup_lif);
 /**
  * vsp1_du_atomic_begin - Prepare for an atomic update
  * @dev: the VSP device
+ * @pipe_index: the DRM pipeline index
  */
-void vsp1_du_atomic_begin(struct device *dev)
+void vsp1_du_atomic_begin(struct device *dev, unsigned int pipe_index)
 {
        struct vsp1_device *vsp1 = dev_get_drvdata(dev);
        struct vsp1_pipeline *pipe = &vsp1->drm->pipe;
@@ -421,8 +430,9 @@ static unsigned int rpf_zpos(struct vsp1_device *vsp1, 
struct vsp1_rwpf *rpf)
 /**
  * vsp1_du_atomic_flush - Commit an atomic update
  * @dev: the VSP device
+ * @pipe_index: the DRM pipeline index
  */
-void vsp1_du_atomic_flush(struct device *dev)
+void vsp1_du_atomic_flush(struct device *dev, unsigned int pipe_index)
 {
        struct vsp1_device *vsp1 = dev_get_drvdata(dev);
        struct vsp1_pipeline *pipe = &vsp1->drm->pipe;
diff --git a/include/media/vsp1.h b/include/media/vsp1.h
index 38aac554dbba..6db4ae0e7c55 100644
--- a/include/media/vsp1.h
+++ b/include/media/vsp1.h
@@ -30,9 +30,11 @@ struct vsp1_du_lif_config {
        unsigned int height;
 };
 
-int vsp1_du_setup_lif(struct device *dev, const struct vsp1_du_lif_config 
*cfg);
+int vsp1_du_setup_lif(struct device *dev, unsigned int pipe_index,
+                     const struct vsp1_du_lif_config *cfg);
 
 struct vsp1_du_atomic_config {
+       unsigned int pipe;
        u32 pixelformat;
        unsigned int pitch;
        dma_addr_t mem[3];
@@ -42,9 +44,9 @@ struct vsp1_du_atomic_config {
        unsigned int zpos;
 };
 
-void vsp1_du_atomic_begin(struct device *dev);
+void vsp1_du_atomic_begin(struct device *dev, unsigned int pipe_index);
 int vsp1_du_atomic_update(struct device *dev, unsigned int rpf,
                          const struct vsp1_du_atomic_config *cfg);
-void vsp1_du_atomic_flush(struct device *dev);
+void vsp1_du_atomic_flush(struct device *dev, unsigned int pipe_index);
 
 #endif /* __MEDIA_VSP1_H__ */
-- 
Regards,

Laurent Pinchart

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