Rename plane setup functions using more explicit names, and use local
variables to store intermediate values to increase readability. This
also prepares for VSP compositor support.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/rcar-du/rcar_du_plane.c | 39 ++++++++++++++++++---------------
1 file changed, 21 insertions(+), 18 deletions(-)
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_plane.c b/drivers/gpu/drm/rcar-du/rcar_du_plane.c
index b20f3ceb55e6..d64b23027749 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_plane.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_plane.c
@@ -35,7 +35,7 @@ static void rcar_du_plane_write(struct rcar_du_group *rgrp,
data);
}
-static void rcar_du_plane_setup_fb(struct rcar_du_plane *plane)
+static void rcar_du_plane_setup_scanout(struct rcar_du_plane *plane)
{
struct rcar_du_plane_state *state =
to_rcar_plane_state(plane->plane.state);
@@ -45,8 +45,10 @@ static void rcar_du_plane_setup_fb(struct rcar_du_plane *plane)
unsigned int src_y = state->state.src_y >> 16;
unsigned int index = state->hwindex;
struct drm_gem_cma_object *gem;
+ unsigned int pitch;
bool interlaced;
- u32 mwr;
+ unsigned int i;
+ u32 dma[2];
interlaced = state->state.crtc->state->adjusted_mode.flags
& DRM_MODE_FLAG_INTERLACE;
@@ -55,14 +57,18 @@ static void rcar_du_plane_setup_fb(struct rcar_du_plane *plane)
* operation with 32bpp formats.
*/
if (state->format->planes == 2)
- mwr = fb->pitches[0];
+ pitch = fb->pitches[0];
else
- mwr = fb->pitches[0] * 8 / state->format->bpp;
+ pitch = fb->pitches[0] * 8 / state->format->bpp;
- if (interlaced && state->format->bpp == 32)
- mwr *= 2;
+ for (i = 0; i < state->format->planes; ++i) {
+ gem = drm_fb_cma_get_gem_obj(fb, i);
+ dma[i] = gem->paddr + fb->offsets[i];
+ }
- rcar_du_plane_write(rgrp, index, PnMWR, mwr);
+ rcar_du_plane_write(rgrp, index, PnMWR,
+ (interlaced && state->format->bpp == 32) ?
+ pitch * 2 : pitch);
/* The Y position is expressed in raster line units and must be doubled
* for 32bpp formats, according to the R8A7790 datasheet. No mention of
@@ -80,21 +86,18 @@ static void rcar_du_plane_setup_fb(struct rcar_du_plane *plane)
rcar_du_plane_write(rgrp, index, PnSPYR, src_y *
(!interlaced && state->format->bpp == 32 ? 2 : 1));
- gem = drm_fb_cma_get_gem_obj(fb, 0);
- rcar_du_plane_write(rgrp, index, PnDSA0R, gem->paddr + fb->offsets[0]);
+ rcar_du_plane_write(rgrp, index, PnDSA0R, dma[0]);
if (state->format->planes == 2) {
index = (index + 1) % 8;
- rcar_du_plane_write(rgrp, index, PnMWR, fb->pitches[0]);
+ rcar_du_plane_write(rgrp, index, PnMWR, pitch);
rcar_du_plane_write(rgrp, index, PnSPXR, src_x);
rcar_du_plane_write(rgrp, index, PnSPYR, src_y *
(state->format->bpp == 16 ? 2 : 1) / 2);
- gem = drm_fb_cma_get_gem_obj(fb, 1);
- rcar_du_plane_write(rgrp, index, PnDSA0R,
- gem->paddr + fb->offsets[1]);
+ rcar_du_plane_write(rgrp, index, PnDSA0R, dma[1]);
}
}
@@ -161,8 +164,8 @@ static void rcar_du_plane_setup_mode(struct rcar_du_plane *plane,
}
}
-static void __rcar_du_plane_setup(struct rcar_du_plane *plane,
- unsigned int index)
+static void rcar_du_plane_setup_format(struct rcar_du_plane *plane,
+ unsigned int index)
{
struct rcar_du_plane_state *state =
to_rcar_plane_state(plane->plane.state);
@@ -217,11 +220,11 @@ void rcar_du_plane_setup(struct rcar_du_plane *plane)
struct rcar_du_plane_state *state =
to_rcar_plane_state(plane->plane.state);
- __rcar_du_plane_setup(plane, state->hwindex);
+ rcar_du_plane_setup_format(plane, state->hwindex);
if (state->format->planes == 2)
- __rcar_du_plane_setup(plane, (state->hwindex + 1) % 8);
+ rcar_du_plane_setup_format(plane, (state->hwindex + 1) % 8);
- rcar_du_plane_setup_fb(plane);
+ rcar_du_plane_setup_scanout(plane);
}
static int rcar_du_plane_atomic_check(struct drm_plane *plane,
--
2.4.6
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