Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 230 insertions, 0 deletions

diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c
new file mode 100644
index 000000000..794a87d16
--- /dev/null
+++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c
@@ -0,0 +1,230 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright 2015 Freescale Semiconductor, Inc.
+ *
+ * Freescale DCU drm device driver
+ */
+
+#include <linux/regmap.h>
+
+#include <drm/drm_atomic.h>
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_fb_dma_helper.h>
+#include <drm/drm_fourcc.h>
+#include <drm/drm_framebuffer.h>
+#include <drm/drm_gem_dma_helper.h>
+#include <drm/drm_plane_helper.h>
+#include <drm/drm_probe_helper.h>
+
+#include "fsl_dcu_drm_drv.h"
+#include "fsl_dcu_drm_plane.h"
+
+static int fsl_dcu_drm_plane_index(struct drm_plane *plane)
+{
+	struct fsl_dcu_drm_device *fsl_dev = plane->dev->dev_private;
+	unsigned int total_layer = fsl_dev->soc->total_layer;
+	unsigned int index;
+
+	index = drm_plane_index(plane);
+	if (index < total_layer)
+		return total_layer - index - 1;
+
+	dev_err(fsl_dev->dev, "No more layer left\n");
+	return -EINVAL;
+}
+
+static int fsl_dcu_drm_plane_atomic_check(struct drm_plane *plane,
+					  struct drm_atomic_state *state)
+{
+	struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
+										 plane);
+	struct drm_framebuffer *fb = new_plane_state->fb;
+
+	if (!new_plane_state->fb || !new_plane_state->crtc)
+		return 0;
+
+	switch (fb->format->format) {
+	case DRM_FORMAT_RGB565:
+	case DRM_FORMAT_RGB888:
+	case DRM_FORMAT_XRGB8888:
+	case DRM_FORMAT_ARGB8888:
+	case DRM_FORMAT_XRGB4444:
+	case DRM_FORMAT_ARGB4444:
+	case DRM_FORMAT_XRGB1555:
+	case DRM_FORMAT_ARGB1555:
+	case DRM_FORMAT_YUV422:
+		return 0;
+	default:
+		return -EINVAL;
+	}
+}
+
+static void fsl_dcu_drm_plane_atomic_disable(struct drm_plane *plane,
+					     struct drm_atomic_state *state)
+{
+	struct fsl_dcu_drm_device *fsl_dev = plane->dev->dev_private;
+	unsigned int value;
+	int index;
+
+	index = fsl_dcu_drm_plane_index(plane);
+	if (index < 0)
+		return;
+
+	regmap_read(fsl_dev->regmap, DCU_CTRLDESCLN(index, 4), &value);
+	value &= ~DCU_LAYER_EN;
+	regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN(index, 4), value);
+}
+
+static void fsl_dcu_drm_plane_atomic_update(struct drm_plane *plane,
+					    struct drm_atomic_state *state)
+
+{
+	struct fsl_dcu_drm_device *fsl_dev = plane->dev->dev_private;
+	struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
+									   plane);
+	struct drm_framebuffer *fb = plane->state->fb;
+	struct drm_gem_dma_object *gem;
+	unsigned int alpha = DCU_LAYER_AB_NONE, bpp;
+	int index;
+
+	if (!fb)
+		return;
+
+	index = fsl_dcu_drm_plane_index(plane);
+	if (index < 0)
+		return;
+
+	gem = drm_fb_dma_get_gem_obj(fb, 0);
+
+	switch (fb->format->format) {
+	case DRM_FORMAT_RGB565:
+		bpp = FSL_DCU_RGB565;
+		break;
+	case DRM_FORMAT_RGB888:
+		bpp = FSL_DCU_RGB888;
+		break;
+	case DRM_FORMAT_ARGB8888:
+		alpha = DCU_LAYER_AB_WHOLE_FRAME;
+		fallthrough;
+	case DRM_FORMAT_XRGB8888:
+		bpp = FSL_DCU_ARGB8888;
+		break;
+	case DRM_FORMAT_ARGB4444:
+		alpha = DCU_LAYER_AB_WHOLE_FRAME;
+		fallthrough;
+	case DRM_FORMAT_XRGB4444:
+		bpp = FSL_DCU_ARGB4444;
+		break;
+	case DRM_FORMAT_ARGB1555:
+		alpha = DCU_LAYER_AB_WHOLE_FRAME;
+		fallthrough;
+	case DRM_FORMAT_XRGB1555:
+		bpp = FSL_DCU_ARGB1555;
+		break;
+	case DRM_FORMAT_YUV422:
+		bpp = FSL_DCU_YUV422;
+		break;
+	default:
+		return;
+	}
+
+	regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN(index, 1),
+		     DCU_LAYER_HEIGHT(new_state->crtc_h) |
+		     DCU_LAYER_WIDTH(new_state->crtc_w));
+	regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN(index, 2),
+		     DCU_LAYER_POSY(new_state->crtc_y) |
+		     DCU_LAYER_POSX(new_state->crtc_x));
+	regmap_write(fsl_dev->regmap,
+		     DCU_CTRLDESCLN(index, 3), gem->dma_addr);
+	regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN(index, 4),
+		     DCU_LAYER_EN |
+		     DCU_LAYER_TRANS(0xff) |
+		     DCU_LAYER_BPP(bpp) |
+		     alpha);
+	regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN(index, 5),
+		     DCU_LAYER_CKMAX_R(0xFF) |
+		     DCU_LAYER_CKMAX_G(0xFF) |
+		     DCU_LAYER_CKMAX_B(0xFF));
+	regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN(index, 6),
+		     DCU_LAYER_CKMIN_R(0) |
+		     DCU_LAYER_CKMIN_G(0) |
+		     DCU_LAYER_CKMIN_B(0));
+	regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN(index, 7), 0);
+	regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN(index, 8),
+		     DCU_LAYER_FG_FCOLOR(0));
+	regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN(index, 9),
+		     DCU_LAYER_BG_BCOLOR(0));
+
+	if (!strcmp(fsl_dev->soc->name, "ls1021a")) {
+		regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN(index, 10),
+			     DCU_LAYER_POST_SKIP(0) |
+			     DCU_LAYER_PRE_SKIP(0));
+	}
+
+	return;
+}
+
+static const struct drm_plane_helper_funcs fsl_dcu_drm_plane_helper_funcs = {
+	.atomic_check = fsl_dcu_drm_plane_atomic_check,
+	.atomic_disable = fsl_dcu_drm_plane_atomic_disable,
+	.atomic_update = fsl_dcu_drm_plane_atomic_update,
+};
+
+static const struct drm_plane_funcs fsl_dcu_drm_plane_funcs = {
+	.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
+	.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
+	.destroy = drm_plane_helper_destroy,
+	.disable_plane = drm_atomic_helper_disable_plane,
+	.reset = drm_atomic_helper_plane_reset,
+	.update_plane = drm_atomic_helper_update_plane,
+};
+
+static const u32 fsl_dcu_drm_plane_formats[] = {
+	DRM_FORMAT_RGB565,
+	DRM_FORMAT_RGB888,
+	DRM_FORMAT_XRGB8888,
+	DRM_FORMAT_ARGB8888,
+	DRM_FORMAT_XRGB4444,
+	DRM_FORMAT_ARGB4444,
+	DRM_FORMAT_XRGB1555,
+	DRM_FORMAT_ARGB1555,
+	DRM_FORMAT_YUV422,
+};
+
+void fsl_dcu_drm_init_planes(struct drm_device *dev)
+{
+	struct fsl_dcu_drm_device *fsl_dev = dev->dev_private;
+	int i, j;
+
+	for (i = 0; i < fsl_dev->soc->total_layer; i++) {
+		for (j = 1; j <= fsl_dev->soc->layer_regs; j++)
+			regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN(i, j), 0);
+	}
+}
+
+struct drm_plane *fsl_dcu_drm_primary_create_plane(struct drm_device *dev)
+{
+	struct drm_plane *primary;
+	int ret;
+
+	primary = kzalloc(sizeof(*primary), GFP_KERNEL);
+	if (!primary) {
+		DRM_DEBUG_KMS("Failed to allocate primary plane\n");
+		return NULL;
+	}
+
+	/* possible_crtc's will be filled in later by crtc_init */
+	ret = drm_universal_plane_init(dev, primary, 0,
+				       &fsl_dcu_drm_plane_funcs,
+				       fsl_dcu_drm_plane_formats,
+				       ARRAY_SIZE(fsl_dcu_drm_plane_formats),
+				       NULL, DRM_PLANE_TYPE_PRIMARY, NULL);
+	if (ret) {
+		kfree(primary);
+		primary = NULL;
+	}
+	drm_plane_helper_add(primary, &fsl_dcu_drm_plane_helper_funcs);
+
+	return primary;
+}