[PATCH 10/22] drm: rcar-du: Expose the VSP1 compositor through KMS planes
Laurent Pinchart
laurent.pinchart+renesas at ideasonboard.com
Sun Sep 13 15:50:57 PDT 2015
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas at ideasonboard.com>
---
drivers/gpu/drm/rcar-du/Kconfig | 7 +
drivers/gpu/drm/rcar-du/Makefile | 2 +
drivers/gpu/drm/rcar-du/rcar_du_crtc.c | 42 +++-
drivers/gpu/drm/rcar-du/rcar_du_crtc.h | 2 +
drivers/gpu/drm/rcar-du/rcar_du_drv.h | 4 +
drivers/gpu/drm/rcar-du/rcar_du_kms.c | 28 ++-
drivers/gpu/drm/rcar-du/rcar_du_plane.c | 7 +-
drivers/gpu/drm/rcar-du/rcar_du_plane.h | 11 +-
drivers/gpu/drm/rcar-du/rcar_du_vsp.c | 359 ++++++++++++++++++++++++++++++++
drivers/gpu/drm/rcar-du/rcar_du_vsp.h | 72 +++++++
10 files changed, 518 insertions(+), 16 deletions(-)
create mode 100644 drivers/gpu/drm/rcar-du/rcar_du_vsp.c
create mode 100644 drivers/gpu/drm/rcar-du/rcar_du_vsp.h
diff --git a/drivers/gpu/drm/rcar-du/Kconfig b/drivers/gpu/drm/rcar-du/Kconfig
index d4e0a39568f6..62650abc3120 100644
--- a/drivers/gpu/drm/rcar-du/Kconfig
+++ b/drivers/gpu/drm/rcar-du/Kconfig
@@ -25,3 +25,10 @@ config DRM_RCAR_LVDS
help
Enable support for the R-Car Display Unit embedded LVDS encoders
(currently only on R8A7790 and R8A7791).
+
+config DRM_RCAR_VSP
+ bool "R-Car DU VSP Compositor Support"
+ depends on DRM_RCAR_DU
+ depends on VIDEO_RENESAS_VSP1
+ help
+ Enable support to expose the R-Car VSP Compositor as KMS planes.
diff --git a/drivers/gpu/drm/rcar-du/Makefile b/drivers/gpu/drm/rcar-du/Makefile
index 05de1c4097af..827711e28226 100644
--- a/drivers/gpu/drm/rcar-du/Makefile
+++ b/drivers/gpu/drm/rcar-du/Makefile
@@ -11,4 +11,6 @@ rcar-du-drm-$(CONFIG_DRM_RCAR_HDMI) += rcar_du_hdmicon.o \
rcar_du_hdmienc.o
rcar-du-drm-$(CONFIG_DRM_RCAR_LVDS) += rcar_du_lvdsenc.o
+rcar-du-drm-$(CONFIG_DRM_RCAR_VSP) += rcar_du_vsp.o
+
obj-$(CONFIG_DRM_RCAR_DU) += rcar-du-drm.o
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
index 7e2f5c26d589..196b940ea8d7 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
@@ -28,6 +28,7 @@
#include "rcar_du_kms.h"
#include "rcar_du_plane.h"
#include "rcar_du_regs.h"
+#include "rcar_du_vsp.h"
static u32 rcar_du_crtc_read(struct rcar_du_crtc *rcrtc, u32 reg)
{
@@ -207,6 +208,7 @@ plane_format(struct rcar_du_plane *plane)
static void rcar_du_crtc_update_planes(struct rcar_du_crtc *rcrtc)
{
struct rcar_du_plane *planes[RCAR_DU_NUM_HW_PLANES];
+ struct rcar_du_device *rcdu = rcrtc->group->dev;
unsigned int num_planes = 0;
unsigned int dptsr_planes;
unsigned int hwplanes = 0;
@@ -250,6 +252,12 @@ static void rcar_du_crtc_update_planes(struct rcar_du_crtc *rcrtc)
}
}
+ /* If VSP+DU integration is enabled the plane assignment is fixed. */
+ if (rcar_du_has(rcdu, RCAR_DU_FEATURE_VSP1_SOURCE)) {
+ dspr = (rcrtc->index % 2) + 1;
+ hwplanes = 1 << (rcrtc->index % 2);
+ }
+
/* Update the planes to display timing and dot clock generator
* associations.
*
@@ -389,6 +397,10 @@ static void rcar_du_crtc_start(struct rcar_du_crtc *rcrtc)
rcar_du_group_start_stop(rcrtc->group, true);
+ /* Enable the VSP compositor. */
+ if (rcar_du_has(rcrtc->group->dev, RCAR_DU_FEATURE_VSP1_SOURCE))
+ rcar_du_vsp_enable(rcrtc);
+
/* Turn vertical blanking interrupt reporting back on. */
drm_crtc_vblank_on(crtc);
@@ -422,6 +434,10 @@ static void rcar_du_crtc_stop(struct rcar_du_crtc *rcrtc)
rcar_du_crtc_wait_page_flip(rcrtc);
drm_crtc_vblank_off(crtc);
+ /* Disable the VSP compositor. */
+ if (rcar_du_has(rcrtc->group->dev, RCAR_DU_FEATURE_VSP1_SOURCE))
+ rcar_du_vsp_disable(rcrtc);
+
/* Select switch sync mode. This stops display operation and configures
* the HSYNC and VSYNC signals as inputs.
*/
@@ -434,6 +450,9 @@ static void rcar_du_crtc_stop(struct rcar_du_crtc *rcrtc)
void rcar_du_crtc_suspend(struct rcar_du_crtc *rcrtc)
{
+ if (rcar_du_has(rcrtc->group->dev, RCAR_DU_FEATURE_VSP1_SOURCE))
+ rcar_du_vsp_disable(rcrtc);
+
rcar_du_crtc_stop(rcrtc);
rcar_du_crtc_put(rcrtc);
}
@@ -449,13 +468,17 @@ void rcar_du_crtc_resume(struct rcar_du_crtc *rcrtc)
rcar_du_crtc_start(rcrtc);
/* Commit the planes state. */
- for (i = 0; i < rcrtc->group->num_planes; ++i) {
- struct rcar_du_plane *plane = &rcrtc->group->planes[i];
+ if (rcar_du_has(rcrtc->group->dev, RCAR_DU_FEATURE_VSP1_SOURCE)) {
+ rcar_du_vsp_enable(rcrtc);
+ } else {
+ for (i = 0; i < rcrtc->group->num_planes; ++i) {
+ struct rcar_du_plane *plane = &rcrtc->group->planes[i];
- if (plane->plane.state->crtc != &rcrtc->crtc)
- continue;
+ if (plane->plane.state->crtc != &rcrtc->crtc)
+ continue;
- rcar_du_plane_setup(plane);
+ rcar_du_plane_setup(plane);
+ }
}
rcar_du_crtc_update_planes(rcrtc);
@@ -578,6 +601,7 @@ int rcar_du_crtc_create(struct rcar_du_group *rgrp, unsigned int index)
struct platform_device *pdev = to_platform_device(rcdu->dev);
struct rcar_du_crtc *rcrtc = &rcdu->crtcs[index];
struct drm_crtc *crtc = &rcrtc->crtc;
+ struct drm_plane *primary;
unsigned int irqflags;
struct clk *clk;
char clk_name[9];
@@ -615,8 +639,12 @@ int rcar_du_crtc_create(struct rcar_du_group *rgrp, unsigned int index)
rcrtc->index = index;
rcrtc->enabled = false;
- ret = drm_crtc_init_with_planes(rcdu->ddev, crtc,
- &rgrp->planes[index % 2].plane,
+ if (rcar_du_has(rcdu, RCAR_DU_FEATURE_VSP1_SOURCE))
+ primary = &rcrtc->vsp->planes[0].plane;
+ else
+ primary = &rgrp->planes[index % 2].plane;
+
+ ret = drm_crtc_init_with_planes(rcdu->ddev, crtc, primary,
NULL, &crtc_funcs);
if (ret < 0)
return ret;
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.h b/drivers/gpu/drm/rcar-du/rcar_du_crtc.h
index 4b95d9d08c49..c7ab46702b1d 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.h
+++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.h
@@ -21,6 +21,7 @@
#include <drm/drm_crtc.h>
struct rcar_du_group;
+struct rcar_du_vsp;
/**
* struct rcar_du_crtc - the CRTC, representing a DU superposition processor
@@ -52,6 +53,7 @@ struct rcar_du_crtc {
bool enabled;
struct rcar_du_group *group;
+ struct rcar_du_vsp *vsp;
};
#define to_rcar_crtc(c) container_of(c, struct rcar_du_crtc, crtc)
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.h b/drivers/gpu/drm/rcar-du/rcar_du_drv.h
index e10b4f0d8f83..a81eb3281e7f 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_drv.h
+++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.h
@@ -19,6 +19,7 @@
#include "rcar_du_crtc.h"
#include "rcar_du_group.h"
+#include "rcar_du_vsp.h"
struct clk;
struct device;
@@ -29,6 +30,7 @@ struct rcar_du_lvdsenc;
#define RCAR_DU_FEATURE_CRTC_IRQ_CLOCK (1 << 0) /* Per-CRTC IRQ and clock */
#define RCAR_DU_FEATURE_EXT_CTRL_REGS (1 << 1) /* Has extended control registers */
+#define RCAR_DU_FEATURE_VSP1_SOURCE (1 << 2) /* Has inputs from VSP1 */
#define RCAR_DU_QUIRK_ALIGN_128B (1 << 0) /* Align pitches to 128 bytes */
#define RCAR_DU_QUIRK_LVDS_LANES (1 << 1) /* LVDS lanes 1 and 3 inverted */
@@ -68,6 +70,7 @@ struct rcar_du_device_info {
#define RCAR_DU_MAX_CRTCS 3
#define RCAR_DU_MAX_GROUPS DIV_ROUND_UP(RCAR_DU_MAX_CRTCS, 2)
#define RCAR_DU_MAX_LVDS 2
+#define RCAR_DU_MAX_VSPS 4
struct rcar_du_device {
struct device *dev;
@@ -82,6 +85,7 @@ struct rcar_du_device {
unsigned int num_crtcs;
struct rcar_du_group groups[RCAR_DU_MAX_GROUPS];
+ struct rcar_du_vsp vsps[RCAR_DU_MAX_VSPS];
struct {
struct drm_property *alpha;
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_kms.c b/drivers/gpu/drm/rcar-du/rcar_du_kms.c
index 6196410b9e98..3f3d93dcbf64 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_kms.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_kms.c
@@ -28,6 +28,7 @@
#include "rcar_du_kms.h"
#include "rcar_du_lvdsenc.h"
#include "rcar_du_regs.h"
+#include "rcar_du_vsp.h"
/* -----------------------------------------------------------------------------
* Format helpers
@@ -195,12 +196,16 @@ static void rcar_du_output_poll_changed(struct drm_device *dev)
static int rcar_du_atomic_check(struct drm_device *dev,
struct drm_atomic_state *state)
{
+ struct rcar_du_device *rcdu = dev->dev_private;
int ret;
ret = drm_atomic_helper_check(dev, state);
if (ret < 0)
return ret;
+ if (rcar_du_has(rcdu, RCAR_DU_FEATURE_VSP1_SOURCE))
+ return 0;
+
return rcar_du_atomic_check_planes(dev, state);
}
@@ -544,9 +549,26 @@ int rcar_du_modeset_init(struct rcar_du_device *rcdu)
*/
rgrp->dptsr_planes = rgrp->num_crtcs > 1 ? 0xf0 : 0;
- ret = rcar_du_planes_init(rgrp);
- if (ret < 0)
- return ret;
+ if (!rcar_du_has(rcdu, RCAR_DU_FEATURE_VSP1_SOURCE)) {
+ ret = rcar_du_planes_init(rgrp);
+ if (ret < 0)
+ return ret;
+ }
+ }
+
+ /* Initialize the compositors. */
+ if (rcar_du_has(rcdu, RCAR_DU_FEATURE_VSP1_SOURCE)) {
+ for (i = 0; i < rcdu->num_crtcs; ++i) {
+ struct rcar_du_vsp *vsp = &rcdu->vsps[i];
+
+ vsp->index = i;
+ vsp->dev = rcdu;
+ rcdu->crtcs[i].vsp = vsp;
+
+ ret = rcar_du_vsp_init(vsp);
+ if (ret < 0)
+ return ret;
+ }
}
/* Create the CRTCs. */
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_plane.c b/drivers/gpu/drm/rcar-du/rcar_du_plane.c
index b868184e8385..4a38ced4b952 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_plane.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_plane.c
@@ -505,12 +505,9 @@ static void rcar_du_plane_setup_format(struct rcar_du_group *rgrp,
rcar_du_plane_write(rgrp, index, PnMLR, 0);
}
-void rcar_du_plane_setup(struct rcar_du_plane *plane)
+void __rcar_du_plane_setup(struct rcar_du_group *rgrp,
+ const struct rcar_du_plane_state *state)
{
- struct rcar_du_plane_state *state =
- to_rcar_plane_state(plane->plane.state);
- struct rcar_du_group *rgrp = plane->group;
-
rcar_du_plane_setup_format(rgrp, state->hwindex, state);
if (state->format->planes == 2)
rcar_du_plane_setup_format(rgrp, (state->hwindex + 1) % 8,
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_plane.h b/drivers/gpu/drm/rcar-du/rcar_du_plane.h
index 6a6460dffae4..b18b7b25dbfa 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_plane.h
+++ b/drivers/gpu/drm/rcar-du/rcar_du_plane.h
@@ -76,6 +76,15 @@ int rcar_du_atomic_check_planes(struct drm_device *dev,
int rcar_du_planes_init(struct rcar_du_group *rgrp);
-void rcar_du_plane_setup(struct rcar_du_plane *plane);
+void __rcar_du_plane_setup(struct rcar_du_group *rgrp,
+ const struct rcar_du_plane_state *state);
+
+static inline void rcar_du_plane_setup(struct rcar_du_plane *plane)
+{
+ struct rcar_du_plane_state *state =
+ to_rcar_plane_state(plane->plane.state);
+
+ return __rcar_du_plane_setup(plane->group, state);
+}
#endif /* __RCAR_DU_PLANE_H__ */
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_vsp.c b/drivers/gpu/drm/rcar-du/rcar_du_vsp.c
new file mode 100644
index 000000000000..6e34dfd0ef42
--- /dev/null
+++ b/drivers/gpu/drm/rcar-du/rcar_du_vsp.c
@@ -0,0 +1,359 @@
+/*
+ * rcar_du_vsp.h -- R-Car Display Unit VSP-Based Compositor
+ *
+ * Copyright (C) 2015 Renesas Electronics Corporation
+ *
+ * Contact: Laurent Pinchart (laurent.pinchart at ideasonboard.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <drm/drmP.h>
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_fb_cma_helper.h>
+#include <drm/drm_gem_cma_helper.h>
+#include <drm/drm_plane_helper.h>
+
+#include <linux/of_platform.h>
+#include <linux/videodev2.h>
+
+#include <media/vsp1.h>
+
+#include "rcar_du_drv.h"
+#include "rcar_du_kms.h"
+#include "rcar_du_vsp.h"
+
+void rcar_du_vsp_enable(struct rcar_du_crtc *crtc)
+{
+ const struct drm_display_mode *mode = &crtc->crtc.state->adjusted_mode;
+ struct rcar_du_plane_state state = {
+ .state = {
+ .crtc = &crtc->crtc,
+ .crtc_x = 0,
+ .crtc_y = 0,
+ .crtc_w = mode->hdisplay,
+ .crtc_h = mode->vdisplay,
+ .src_x = 0,
+ .src_y = 0,
+ .src_w = mode->hdisplay << 16,
+ .src_h = mode->vdisplay << 16,
+ },
+ .format = rcar_du_format_info(DRM_FORMAT_ARGB8888),
+ .hwindex = crtc->index % 2,
+ .source = RCAR_DU_PLANE_VSPD1,
+ .alpha = 255,
+ .colorkey = 0,
+ .zpos = 0,
+ };
+
+ __rcar_du_plane_setup(crtc->group, &state);
+
+ /* Ensure that the plane source configuration takes effect by requesting
+ * a restart of the group. See rcar_du_plane_atomic_update() for a more
+ * detailed explanation.
+ *
+ * TODO: Check whether this is still needed on Gen3.
+ */
+ crtc->group->need_restart = true;
+
+ vsp1_du_setup_lif(crtc->vsp->vsp, mode->hdisplay, mode->vdisplay);
+}
+
+void rcar_du_vsp_disable(struct rcar_du_crtc *crtc)
+{
+ vsp1_du_setup_lif(crtc->vsp->vsp, 0, 0);
+}
+
+/* Keep the two tables in sync. */
+static const u32 formats_kms[] = {
+ DRM_FORMAT_RGB332,
+ DRM_FORMAT_ARGB4444,
+ DRM_FORMAT_XRGB4444,
+ DRM_FORMAT_ARGB1555,
+ DRM_FORMAT_XRGB1555,
+ DRM_FORMAT_RGB565,
+ DRM_FORMAT_BGR888,
+ DRM_FORMAT_RGB888,
+ DRM_FORMAT_BGRA8888,
+ DRM_FORMAT_BGRX8888,
+ DRM_FORMAT_ARGB8888,
+ DRM_FORMAT_XRGB8888,
+ DRM_FORMAT_UYVY,
+ DRM_FORMAT_VYUY,
+ DRM_FORMAT_YUYV,
+ DRM_FORMAT_YVYU,
+ DRM_FORMAT_NV12,
+ DRM_FORMAT_NV21,
+ DRM_FORMAT_NV16,
+ DRM_FORMAT_NV61,
+};
+
+static const u32 formats_v4l2[] = {
+ V4L2_PIX_FMT_RGB332,
+ V4L2_PIX_FMT_ARGB444,
+ V4L2_PIX_FMT_XRGB444,
+ V4L2_PIX_FMT_ARGB555,
+ V4L2_PIX_FMT_XRGB555,
+ V4L2_PIX_FMT_RGB565,
+ V4L2_PIX_FMT_RGB24,
+ V4L2_PIX_FMT_BGR24,
+ V4L2_PIX_FMT_ARGB32,
+ V4L2_PIX_FMT_XRGB32,
+ V4L2_PIX_FMT_ABGR32,
+ V4L2_PIX_FMT_XBGR32,
+ V4L2_PIX_FMT_UYVY,
+ V4L2_PIX_FMT_VYUY,
+ V4L2_PIX_FMT_YUYV,
+ V4L2_PIX_FMT_YVYU,
+ V4L2_PIX_FMT_NV12M,
+ V4L2_PIX_FMT_NV21M,
+ V4L2_PIX_FMT_NV16M,
+ V4L2_PIX_FMT_NV61M,
+};
+
+static void rcar_du_vsp_plane_setup(struct rcar_du_vsp_plane *plane)
+{
+ struct rcar_du_vsp_plane_state *state =
+ to_rcar_vsp_plane_state(plane->plane.state);
+ struct drm_framebuffer *fb = plane->plane.state->fb;
+ struct drm_gem_cma_object *gem;
+ struct v4l2_rect src;
+ struct v4l2_rect dst;
+ dma_addr_t paddr[2] = { 0, };
+ u32 pixelformat = 0;
+ unsigned int i;
+
+ src.left = state->state.src_x >> 16;
+ src.top = state->state.src_y >> 16;
+ src.width = state->state.src_w >> 16;
+ src.height = state->state.src_h >> 16;
+
+ dst.left = state->state.crtc_x;
+ dst.top = state->state.crtc_y;
+ dst.width = state->state.crtc_w;
+ dst.height = state->state.crtc_h;
+
+ gem = drm_fb_cma_get_gem_obj(fb, 0);
+ paddr[0] = gem->paddr + fb->offsets[0];
+
+ if (state->format->planes == 2) {
+ gem = drm_fb_cma_get_gem_obj(fb, 1);
+ paddr[1] = gem->paddr + fb->offsets[1];
+ }
+
+ for (i = 0; i < ARRAY_SIZE(formats_kms); ++i) {
+ if (formats_kms[i] == state->format->fourcc) {
+ pixelformat = formats_v4l2[i];
+ break;
+ }
+ }
+
+ WARN_ON(!pixelformat);
+
+ vsp1_du_setup_rpf(plane->vsp->vsp, plane->index, pixelformat,
+ fb->pitches[0], paddr, &src, &dst);
+}
+
+static int rcar_du_vsp_plane_atomic_check(struct drm_plane *plane,
+ struct drm_plane_state *state)
+{
+ struct rcar_du_vsp_plane_state *rstate = to_rcar_vsp_plane_state(state);
+ struct rcar_du_vsp_plane *rplane = to_rcar_vsp_plane(plane);
+ struct rcar_du_device *rcdu = rplane->vsp->dev;
+
+ if (!state->fb || !state->crtc) {
+ rstate->format = NULL;
+ return 0;
+ }
+
+ if (state->src_w >> 16 != state->crtc_w ||
+ state->src_h >> 16 != state->crtc_h) {
+ dev_dbg(rcdu->dev, "%s: scaling not supported\n", __func__);
+ return -EINVAL;
+ }
+
+ rstate->format = rcar_du_format_info(state->fb->pixel_format);
+ if (rstate->format == NULL) {
+ dev_dbg(rcdu->dev, "%s: unsupported format %08x\n", __func__,
+ state->fb->pixel_format);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static void rcar_du_vsp_plane_atomic_update(struct drm_plane *plane,
+ struct drm_plane_state *old_state)
+{
+ struct rcar_du_vsp_plane *rplane = to_rcar_vsp_plane(plane);
+
+ if (plane->state->crtc)
+ rcar_du_vsp_plane_setup(rplane);
+ else
+ vsp1_du_setup_rpf(rplane->vsp->vsp, rplane->index, 0, 0, 0,
+ NULL, NULL);
+}
+
+static const struct drm_plane_helper_funcs rcar_du_vsp_plane_helper_funcs = {
+ .atomic_check = rcar_du_vsp_plane_atomic_check,
+ .atomic_update = rcar_du_vsp_plane_atomic_update,
+};
+
+static struct drm_plane_state *
+rcar_du_vsp_plane_atomic_duplicate_state(struct drm_plane *plane)
+{
+ struct rcar_du_vsp_plane_state *state;
+ struct rcar_du_vsp_plane_state *copy;
+
+ if (WARN_ON(!plane->state))
+ return NULL;
+
+ state = to_rcar_vsp_plane_state(plane->state);
+ copy = kmemdup(state, sizeof(*state), GFP_KERNEL);
+ if (copy == NULL)
+ return NULL;
+
+ __drm_atomic_helper_plane_duplicate_state(plane, ©->state);
+
+ return ©->state;
+}
+
+static void rcar_du_vsp_plane_atomic_destroy_state(struct drm_plane *plane,
+ struct drm_plane_state *state)
+{
+ __drm_atomic_helper_plane_destroy_state(plane, state);
+ kfree(to_rcar_vsp_plane_state(state));
+}
+
+static void rcar_du_vsp_plane_reset(struct drm_plane *plane)
+{
+ struct rcar_du_vsp_plane_state *state;
+
+ if (plane->state) {
+ rcar_du_vsp_plane_atomic_destroy_state(plane, plane->state);
+ plane->state = NULL;
+ }
+
+ state = kzalloc(sizeof(*state), GFP_KERNEL);
+ if (state == NULL)
+ return;
+
+ state->alpha = 255;
+
+ plane->state = &state->state;
+ plane->state->plane = plane;
+}
+
+static int rcar_du_vsp_plane_atomic_set_property(struct drm_plane *plane,
+ struct drm_plane_state *state, struct drm_property *property,
+ uint64_t val)
+{
+ struct rcar_du_vsp_plane_state *rstate = to_rcar_vsp_plane_state(state);
+ struct rcar_du_device *rcdu = to_rcar_vsp_plane(plane)->vsp->dev;
+
+ if (property == rcdu->props.alpha)
+ rstate->alpha = val;
+ else
+ return -EINVAL;
+
+ return 0;
+}
+
+static int rcar_du_vsp_plane_atomic_get_property(struct drm_plane *plane,
+ const struct drm_plane_state *state, struct drm_property *property,
+ uint64_t *val)
+{
+ const struct rcar_du_vsp_plane_state *rstate =
+ container_of(state, const struct rcar_du_vsp_plane_state, state);
+ struct rcar_du_device *rcdu = to_rcar_vsp_plane(plane)->vsp->dev;
+
+ if (property == rcdu->props.alpha)
+ *val = rstate->alpha;
+ else
+ return -EINVAL;
+
+ return 0;
+}
+
+static const struct drm_plane_funcs rcar_du_vsp_plane_funcs = {
+ .update_plane = drm_atomic_helper_update_plane,
+ .disable_plane = drm_atomic_helper_disable_plane,
+ .reset = rcar_du_vsp_plane_reset,
+ .set_property = drm_atomic_helper_plane_set_property,
+ .destroy = drm_plane_cleanup,
+ .atomic_duplicate_state = rcar_du_vsp_plane_atomic_duplicate_state,
+ .atomic_destroy_state = rcar_du_vsp_plane_atomic_destroy_state,
+ .atomic_set_property = rcar_du_vsp_plane_atomic_set_property,
+ .atomic_get_property = rcar_du_vsp_plane_atomic_get_property,
+};
+
+int rcar_du_vsp_init(struct rcar_du_vsp *vsp)
+{
+ struct rcar_du_device *rcdu = vsp->dev;
+ struct platform_device *pdev;
+ struct device_node *np;
+ unsigned int i;
+ int ret;
+
+ /* Find the VSP device and initialize it. */
+ np = of_parse_phandle(rcdu->dev->of_node, "vsps", vsp->index);
+ if (!np) {
+ dev_err(rcdu->dev, "vsps node not found\n");
+ return -ENXIO;
+ }
+
+ pdev = of_find_device_by_node(np);
+ of_node_put(np);
+ if (!pdev)
+ return -ENXIO;
+
+ vsp->vsp = &pdev->dev;
+
+ ret = vsp1_du_init(vsp->vsp);
+ if (ret < 0)
+ return ret;
+
+ /* The VSP2D (Gen3) has 5 RPFs, but the VSP1D (Gen2) is limited to
+ * 4 RPFs. Hardcode the number of planes to 4 as Gen3 isn't supported
+ * yet.
+ */
+ vsp->num_planes = 4;
+
+ vsp->planes = devm_kcalloc(rcdu->dev, vsp->num_planes,
+ sizeof(*vsp->planes), GFP_KERNEL);
+ if (!vsp->planes)
+ return -ENOMEM;
+
+ for (i = 0; i < vsp->num_planes; ++i) {
+ enum drm_plane_type type = i ? DRM_PLANE_TYPE_OVERLAY
+ : DRM_PLANE_TYPE_PRIMARY;
+ struct rcar_du_vsp_plane *plane = &vsp->planes[i];
+
+ plane->vsp = vsp;
+ plane->index = i;
+
+ ret = drm_universal_plane_init(rcdu->ddev, &plane->plane,
+ 1 << vsp->index,
+ &rcar_du_vsp_plane_funcs,
+ formats_kms,
+ ARRAY_SIZE(formats_kms), type);
+ if (ret < 0)
+ return ret;
+
+ drm_plane_helper_add(&plane->plane,
+ &rcar_du_vsp_plane_helper_funcs);
+
+ if (type == DRM_PLANE_TYPE_PRIMARY)
+ continue;
+
+ drm_object_attach_property(&plane->plane.base,
+ rcdu->props.alpha, 255);
+ }
+
+ return 0;
+}
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_vsp.h b/drivers/gpu/drm/rcar-du/rcar_du_vsp.h
new file mode 100644
index 000000000000..7a6ed21ebcd3
--- /dev/null
+++ b/drivers/gpu/drm/rcar-du/rcar_du_vsp.h
@@ -0,0 +1,72 @@
+/*
+ * rcar_du_vsp.h -- R-Car Display Unit VSP-Based Compositor
+ *
+ * Copyright (C) 2015 Renesas Electronics Corporation
+ *
+ * Contact: Laurent Pinchart (laurent.pinchart at ideasonboard.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef __RCAR_DU_VSP_H__
+#define __RCAR_DU_VSP_H__
+
+#include <drm/drmP.h>
+#include <drm/drm_crtc.h>
+
+struct rcar_du_format_info;
+struct rcar_du_vsp;
+
+struct rcar_du_vsp_plane {
+ struct drm_plane plane;
+ struct rcar_du_vsp *vsp;
+ unsigned int index;
+};
+
+struct rcar_du_vsp {
+ unsigned int index;
+ struct device *vsp;
+ struct rcar_du_device *dev;
+ struct rcar_du_vsp_plane *planes;
+ unsigned int num_planes;
+};
+
+static inline struct rcar_du_vsp_plane *to_rcar_vsp_plane(struct drm_plane *p)
+{
+ return container_of(p, struct rcar_du_vsp_plane, plane);
+}
+
+/**
+ * struct rcar_du_vsp_plane_state - Driver-specific plane state
+ * @state: base DRM plane state
+ * @format: information about the pixel format used by the plane
+ * @alpha: value of the plane alpha property
+ */
+struct rcar_du_vsp_plane_state {
+ struct drm_plane_state state;
+
+ const struct rcar_du_format_info *format;
+
+ unsigned int alpha;
+};
+
+static inline struct rcar_du_vsp_plane_state *
+to_rcar_vsp_plane_state(struct drm_plane_state *state)
+{
+ return container_of(state, struct rcar_du_vsp_plane_state, state);
+}
+
+#ifdef CONFIG_DRM_RCAR_VSP
+int rcar_du_vsp_init(struct rcar_du_vsp *vsp);
+void rcar_du_vsp_enable(struct rcar_du_crtc *crtc);
+void rcar_du_vsp_disable(struct rcar_du_crtc *crtc);
+#else
+static inline int rcar_du_vsp_init(struct rcar_du_vsp *vsp) { return 0; };
+static inline void rcar_du_vsp_enable(struct rcar_du_crtc *crtc) { };
+static inline void rcar_du_vsp_disable(struct rcar_du_crtc *crtc) { };
+#endif
+
+#endif /* __RCAR_DU_VSP_H__ */
--
2.4.6
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