The VS DRM master driver for the JH7110 System on Chip (SoC),
along with the addition of a DMA GEM (Graphics Execution Manager) driver
Signed-off-by: keith zhao <keith.zhao@xxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/verisilicon/Makefile | 3 +-
drivers/gpu/drm/verisilicon/vs_drv.c | 777 +++++++++++++++++++++++++++
2 files changed, 779 insertions(+), 1 deletion(-)
create mode 100644 drivers/gpu/drm/verisilicon/vs_drv.c
diff --git a/drivers/gpu/drm/verisilicon/Makefile b/drivers/gpu/drm/verisilicon/Makefile
index a602630c2416..67c94518d810 100644
--- a/drivers/gpu/drm/verisilicon/Makefile
+++ b/drivers/gpu/drm/verisilicon/Makefile
@@ -3,7 +3,8 @@
vs_drm-objs := vs_dc_hw.o \
vs_modeset.o \
vs_crtc.o \
- vs_plane.o
+ vs_plane.o \
+ vs_drv.o
vs_drm-$(CONFIG_DRM_INNO_STARFIVE_HDMI) += inno_hdmi-starfive.o
obj-$(CONFIG_DRM_VERISILICON_DC8200) += vs_drm.o
diff --git a/drivers/gpu/drm/verisilicon/vs_drv.c b/drivers/gpu/drm/verisilicon/vs_drv.c
new file mode 100644
index 000000000000..830dd0b1e9a0
--- /dev/null
+++ b/drivers/gpu/drm/verisilicon/vs_drv.c
@@ -0,0 +1,777 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) VeriSilicon Holdings Co., Ltd.
+ */
+#include <linux/clk.h>
+#include <linux/component.h>
+#include <linux/mfd/syscon.h>
+#include <linux/of_clk.h>
+#include <linux/of_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+
+#include <drm/drm_aperture.h>
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_fb_helper.h>
+#include <drm/drm_file.h>
+#include <drm/drm_fourcc.h>
+#include <drm/drm_gem_dma_helper.h>
+#include <drm/drm_module.h>
+#include <drm/drm_of.h>
+#include <drm/drm_probe_helper.h>
+#include <drm/drm_vblank.h>
+
+#include "vs_drv.h"
+#include "vs_crtc.h"
+#include "vs_plane.h"
+#include "vs_modeset.h"
+
+#define DRV_NAME "verisilicon"
+#define DRV_DESC "Verisilicon DRM driver"
+#define DRV_DATE "20230516"
+#define DRV_MAJOR 1
+#define DRV_MINOR 0
+
+#define FRAC_16_16(mult, div) (((mult) << 16) / (div))
+
+static const u32 primary_overlay_format[] = {
+ DRM_FORMAT_RGB565,
+ DRM_FORMAT_BGR565,
+ DRM_FORMAT_XRGB8888,
+ DRM_FORMAT_XBGR8888,
+ DRM_FORMAT_RGBX8888,
+ DRM_FORMAT_BGRX8888,
+ DRM_FORMAT_ARGB8888,
+ DRM_FORMAT_ABGR8888,
+ DRM_FORMAT_RGBA8888,
+ DRM_FORMAT_BGRA8888,
+ DRM_FORMAT_XRGB4444,
+ DRM_FORMAT_XBGR4444,
+ DRM_FORMAT_RGBX4444,
+ DRM_FORMAT_BGRX4444,
+ DRM_FORMAT_ARGB4444,
+ DRM_FORMAT_ABGR4444,
+ DRM_FORMAT_RGBA4444,
+ DRM_FORMAT_BGRA4444,
+ DRM_FORMAT_XRGB1555,
+ DRM_FORMAT_XBGR1555,
+ DRM_FORMAT_RGBX5551,
+ DRM_FORMAT_BGRX5551,
+ DRM_FORMAT_ARGB1555,
+ DRM_FORMAT_ABGR1555,
+ DRM_FORMAT_RGBA5551,
+ DRM_FORMAT_BGRA5551,
+ DRM_FORMAT_ARGB2101010,
+ DRM_FORMAT_ABGR2101010,
+ DRM_FORMAT_RGBA1010102,
+ DRM_FORMAT_BGRA1010102,
+ DRM_FORMAT_YUYV,
+ DRM_FORMAT_YVYU,
+ DRM_FORMAT_UYVY,
+ DRM_FORMAT_VYUY,
+ DRM_FORMAT_YVU420,
+ DRM_FORMAT_YUV420,
+ DRM_FORMAT_NV12,
+ DRM_FORMAT_NV21,
+ DRM_FORMAT_NV16,
+ DRM_FORMAT_NV61,
+ DRM_FORMAT_P010,
+};
+
+static const u32 cursor_formats[] = {
+ DRM_FORMAT_ARGB8888
+};
+
+static const u64 format_modifier[] = {
+ DRM_FORMAT_MOD_LINEAR,
+ DRM_FORMAT_MOD_INVALID
+};
+
+static const u64 secondary_format_modifiers[] = {
+ DRM_FORMAT_MOD_LINEAR,
+ DRM_FORMAT_MOD_INVALID
+};
+
+static const struct vs_plane_data vs_plane_pri0 = {
+ .num_formats = ARRAY_SIZE(primary_overlay_format),
+ .formats = primary_overlay_format,
+ .num_modifiers = ARRAY_SIZE(format_modifier),
+ .modifiers = format_modifier,
+ .min_width = 0,
+ .min_height = 0,
+ .max_width = 4096,
+ .max_height = 4096,
+ .min_scale = FRAC_16_16(1, 3),
+ .max_scale = FRAC_16_16(10, 1),
+ .rotation = DRM_MODE_ROTATE_0 |
+ DRM_MODE_ROTATE_90 |
+ DRM_MODE_ROTATE_180 |
+ DRM_MODE_ROTATE_270 |
+ DRM_MODE_REFLECT_X |
+ DRM_MODE_REFLECT_Y,
+ .color_encoding = BIT(DRM_COLOR_YCBCR_BT709) | BIT(DRM_COLOR_YCBCR_BT2020),
+ .zpos = 0,
+};
+
+static const struct vs_plane_data vs_plane_pri1 = {
+ .num_formats = ARRAY_SIZE(primary_overlay_format),
+ .formats = primary_overlay_format,
+ .num_modifiers = ARRAY_SIZE(format_modifier),
+ .modifiers = format_modifier,
+ .min_width = 0,
+ .min_height = 0,
+ .max_width = 4096,
+ .max_height = 4096,
+ .min_scale = FRAC_16_16(1, 3),
+ .max_scale = FRAC_16_16(10, 1),
+ .rotation = DRM_MODE_ROTATE_0 |
+ DRM_MODE_ROTATE_90 |
+ DRM_MODE_ROTATE_180 |
+ DRM_MODE_ROTATE_270 |
+ DRM_MODE_REFLECT_X |
+ DRM_MODE_REFLECT_Y,
+ .color_encoding = BIT(DRM_COLOR_YCBCR_BT709) | BIT(DRM_COLOR_YCBCR_BT2020),
+ .zpos = 3,
+};
+
+static const struct vs_plane_data vs_plane_over0 = {
+ .num_formats = ARRAY_SIZE(primary_overlay_format),
+ .formats = primary_overlay_format,
+ .num_modifiers = ARRAY_SIZE(format_modifier),
+ .modifiers = format_modifier,
+ .min_width = 0,
+ .min_height = 0,
+ .max_width = 4096,
+ .max_height = 4096,
+ .min_scale = FRAC_16_16(1, 3),
+ .max_scale = FRAC_16_16(10, 1),
+ .rotation = DRM_MODE_ROTATE_0 |
+ DRM_MODE_ROTATE_90 |
+ DRM_MODE_ROTATE_180 |
+ DRM_MODE_ROTATE_270 |
+ DRM_MODE_REFLECT_X |
+ DRM_MODE_REFLECT_Y,
+ .color_encoding = BIT(DRM_COLOR_YCBCR_BT709) | BIT(DRM_COLOR_YCBCR_BT2020),
+ .zpos = 1,
+};
+
+static const struct vs_plane_data vs_plane_over1 = {
+ .num_formats = ARRAY_SIZE(primary_overlay_format),
+ .formats = primary_overlay_format,
+ .num_modifiers = ARRAY_SIZE(secondary_format_modifiers),
+ .modifiers = secondary_format_modifiers,
+ .min_width = 0,
+ .min_height = 0,
+ .max_width = 4096,
+ .max_height = 4096,
+ .min_scale = DRM_PLANE_NO_SCALING,
+ .max_scale = DRM_PLANE_NO_SCALING,
+ .rotation = 0,
+ .color_encoding = BIT(DRM_COLOR_YCBCR_BT709) | BIT(DRM_COLOR_YCBCR_BT2020),
+ .zpos = 2,
+};
+
+static const struct vs_plane_data vs_plane_over2 = {
+ .num_formats = ARRAY_SIZE(primary_overlay_format),
+ .formats = primary_overlay_format,
+ .num_modifiers = ARRAY_SIZE(format_modifier),
+ .modifiers = format_modifier,
+ .min_width = 0,
+ .min_height = 0,
+ .max_width = 4096,
+ .max_height = 4096,
+ .min_scale = FRAC_16_16(1, 3),
+ .max_scale = FRAC_16_16(10, 1),
+ .rotation = DRM_MODE_ROTATE_0 |
+ DRM_MODE_ROTATE_90 |
+ DRM_MODE_ROTATE_180 |
+ DRM_MODE_ROTATE_270 |
+ DRM_MODE_REFLECT_X |
+ DRM_MODE_REFLECT_Y,
+ .color_encoding = BIT(DRM_COLOR_YCBCR_BT709) | BIT(DRM_COLOR_YCBCR_BT2020),
+ .zpos = 4,
+};
+
+static const struct vs_plane_data vs_plane_over3 = {
+ .num_formats = ARRAY_SIZE(primary_overlay_format),
+ .formats = primary_overlay_format,
+ .num_modifiers = ARRAY_SIZE(format_modifier),
+ .modifiers = format_modifier,
+ .min_width = 0,
+ .min_height = 0,
+ .max_width = 4096,
+ .max_height = 4096,
+ .min_scale = FRAC_16_16(1, 3),
+ .max_scale = FRAC_16_16(10, 1),
+ .rotation = DRM_MODE_ROTATE_0 |
+ DRM_MODE_ROTATE_90 |
+ DRM_MODE_ROTATE_180 |
+ DRM_MODE_ROTATE_270 |
+ DRM_MODE_REFLECT_X |
+ DRM_MODE_REFLECT_Y,
+ .color_encoding = BIT(DRM_COLOR_YCBCR_BT709) | BIT(DRM_COLOR_YCBCR_BT2020),
+ .zpos = 5,
+};
+
+static const struct vs_plane_data vs_plane_cur0 = {
+ .num_formats = ARRAY_SIZE(cursor_formats),
+ .formats = cursor_formats,
+ .min_width = 32,
+ .min_height = 32,
+ .max_width = 64,
+ .max_height = 64,
+ .min_scale = DRM_PLANE_NO_SCALING,
+ .max_scale = DRM_PLANE_NO_SCALING,
+ .zpos = 255,
+};
+
+static const struct vs_plane_data vs_plane_cur1 = {
+ .num_formats = ARRAY_SIZE(cursor_formats),
+ .formats = cursor_formats,
+ .min_width = 32,
+ .min_height = 32,
+ .max_width = 64,
+ .max_height = 64,
+ .zpos = 255,
+};
+
+static const struct vs_plane_info info[] = {
+ {.id = PRIMARY_PLANE_0, .data = &vs_plane_pri0,
+ .type = DRM_PLANE_TYPE_PRIMARY},
+ {.id = OVERLAY_PLANE_0, .data = &vs_plane_over0,
+ .type = DRM_PLANE_TYPE_OVERLAY},
+ {.id = OVERLAY_PLANE_1, .data = &vs_plane_over1,
+ .type = DRM_PLANE_TYPE_OVERLAY},
+ {.id = PRIMARY_PLANE_1, .data = &vs_plane_pri1,
+ .type = DRM_PLANE_TYPE_PRIMARY},
+ {.id = OVERLAY_PLANE_2, .data = &vs_plane_over2,
+ .type = DRM_PLANE_TYPE_OVERLAY},
+ {.id = OVERLAY_PLANE_3, .data = &vs_plane_over3,
+ .type = DRM_PLANE_TYPE_OVERLAY},
+ {.id = CURSOR_PLANE_0, .data = &vs_plane_cur0,
+ .type = DRM_PLANE_TYPE_CURSOR},
+ {.id = CURSOR_PLANE_1, .data = &vs_plane_cur1,
+ .type = DRM_PLANE_TYPE_CURSOR},
+};
+
+static const struct vs_dc_info dc8200_info = {
+ .name = "DC8200",
+ .plane_num = ARRAY_SIZE(info),
+ .panel_num = 2,
+ .info = info,
+ .layer_num = 6,
+ .gamma_size = GAMMA_EX_SIZE,
+ .gamma_bits = 12,
+ .pitch_alignment = 128,
+};
+
+#define STARFIVE_SOC_CON8 0x08
+# define STARFIVE_MIPI_SEL BIT(3)
+
+static int vs_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
+ struct drm_mode_create_dumb *args)
+{
+ struct vs_drm_device *priv = to_vs_drm_private(dev);
+ unsigned int pitch = DIV_ROUND_UP(args->width * args->bpp, 8);
+
+ args->pitch = ALIGN(pitch, priv->pitch_alignment);
+ return drm_gem_dma_dumb_create_internal(file, dev, args);
+}
+
+DEFINE_DRM_GEM_FOPS(vs_drm_fops);
+
+static struct drm_driver vs_drm_driver = {
+ .driver_features = DRIVER_MODESET | DRIVER_ATOMIC | DRIVER_GEM,
+
+ DRM_GEM_DMA_DRIVER_OPS_WITH_DUMB_CREATE(vs_gem_dumb_create),
+
+ .fops = &vs_drm_fops,
+ .name = DRV_NAME,
+ .desc = DRV_DESC,
+ .date = DRV_DATE,
+ .major = DRV_MAJOR,
+ .minor = DRV_MINOR,
+};
+
+static irqreturn_t vs_dc_isr(int irq, void *data)
+{
+ struct vs_drm_device *priv = data;
+ struct vs_dc *dc = &priv->dc;
+ u8 status = 0;
+
+ dc_hw_get_interrupt(&dc->hw, &status);
+
+ if (status & BIT(0))
+ drm_crtc_handle_vblank(&dc->crtc[0]->base);
+
+ if (status & BIT(1))
+ drm_crtc_handle_vblank(&dc->crtc[1]->base);
+
+ return IRQ_HANDLED;
+}
+
+static int vs_drm_device_init_res(struct vs_drm_device *priv)
+{
+ struct device *dev = priv->base.dev;
+ struct platform_device *pdev = to_platform_device(dev);
+ int ret;
+ struct vs_dc *dc;
+
+ dc = &priv->dc;
+ dc->hw.hi_base = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(dc->hw.hi_base))
+ return PTR_ERR(dc->hw.hi_base);
+
+ dc->hw.reg_base = devm_platform_ioremap_resource(pdev, 1);
+ if (IS_ERR(dc->hw.reg_base))
+ return PTR_ERR(dc->hw.reg_base);
+
+ dc->hw.info = (struct vs_dc_info *)of_device_get_match_data(dev);
+
+ ret = devm_clk_bulk_get_all(dev, &priv->clks);
+ if (ret < 0) {
+ dev_err(dev, "can't get vout clock, ret=%d\n", ret);
+ return ret;
+ }
+ priv->clk_count = ret;
+
+ priv->rsts = devm_reset_control_array_get_shared(dev);
+ if (IS_ERR(priv->rsts))
+ return PTR_ERR(priv->rsts);
+
+ priv->irq = platform_get_irq(pdev, 0);
+
+ /* do not autoenable, will be enabled later */
+ ret = devm_request_irq(dev, priv->irq, vs_dc_isr, IRQF_NO_AUTOEN, dev_name(dev), priv);
+ if (ret < 0) {
+ dev_err(dev, "Failed to install irq:%u.\n", priv->irq);
+ return ret;
+ }
+
+ priv->dc_syscon_regmap = syscon_regmap_lookup_by_phandle(dev->of_node,
+ "starfive,syscon");
+ if (IS_ERR(priv->dc_syscon_regmap)) {
+ dev_err(dev, "failed to get starfive,syscon property\n");
+ return PTR_ERR(priv->dc_syscon_regmap);
+ }
+
+ return ret;
+}
+
+static u32 vs_get_addr_offset(u32 id)
+{
+ u32 offset = 0;
+
+ switch (id) {
+ case PRIMARY_PLANE_1:
+ case OVERLAY_PLANE_1:
+ offset = 0x04;
+ break;
+ case OVERLAY_PLANE_2:
+ offset = 0x08;
+ break;
+ case OVERLAY_PLANE_3:
+ offset = 0x0C;
+ break;
+ default:
+ break;
+ }
+
+ return offset;
+}
+
+static u32 vs_map_possible_crtc(u32 id)
+{
+ switch (id) {
+ case PRIMARY_PLANE_0:
+ case CURSOR_PLANE_0:
+ return 0x01;//crtc0
+ case PRIMARY_PLANE_1:
+ case CURSOR_PLANE_1:
+ return 0x02;//crtc1
+ default:
+ return 0x03;//crtc0&crtc1
+ }
+}
+
+static int vs_kms_init(struct vs_drm_device *priv)
+{
+ struct vs_dc *dc;
+ struct drm_device *drm_dev;
+ int i, ret;
+ struct device_node *port;
+ struct vs_crtc *crtc;
+ struct vs_dc_info *dc_info;
+ struct vs_plane_info *plane_info;
+ struct vs_plane *plane;
+
+ u32 max_width = 0, max_height = 0;
+ u32 min_width = 0xffff, min_heigth = 0xffff;
+
+ dc = &priv->dc;
+ dc_info = dc->hw.info;
+ drm_dev = &priv->base;
+
+ for (i = 0; i < dc_info->panel_num; i++) {
+ crtc = vs_crtc_create(drm_dev, dc_info);
+ if (!crtc) {
+ drm_err(drm_dev, "Failed to create CRTC.\n");
+ ret = -ENOMEM;
+ return ret;
+ }
+ crtc->dev = drm_dev->dev;
+ crtc->index = i;
+
+ port = of_graph_get_port_by_id(crtc->dev->of_node, i);
+ if (!port) {
+ drm_err(drm_dev, "no port node found for crtc_port%d\n", i);
+ return -ENOENT;
+ }
+
+ crtc->base.port = port;
+ dc->crtc[i] = crtc;
+
+ of_node_put(port);
+ }
+
+ if (!dc->crtc[0]->base.port || !dc->crtc[1]->base.port) {
+ drm_err(drm_dev, "no port no crtc mask, fail to create plane\n");
+ return -ENOENT;
+ }
+
+ for (i = 0; i < dc_info->plane_num; i++) {
+ plane_info = (struct vs_plane_info *)&dc_info->info[i];
+
+ plane = vs_plane_create(drm_dev, plane_info, dc_info->layer_num,
+ vs_map_possible_crtc(plane_info->id));
+
+ plane->id = i;
+ dc->planes[i].id = plane_info->id;
+ dc->planes[i].offset = vs_get_addr_offset(plane_info->id);
+
+ if (plane_info->type == DRM_PLANE_TYPE_PRIMARY) {
+ if (plane_info->id == PRIMARY_PLANE_0)
+ dc->crtc[0]->base.primary = &plane->base;
+ else
+ dc->crtc[1]->base.primary = &plane->base;
+ min_width = min_t(u32, min_width, plane_info->data->min_width);
+ min_heigth = min_t(u32, min_heigth, plane_info->data->min_height);
+ /*
+ * Note: these values are used for multiple independent things:
+ * hw display mode filtering, plane buffer sizes ...
+ * Use the combined maximum values here to cover all use cases,
+ * and do more specific checking in the respective code paths.
+ */
+ max_width = max_t(u32, max_width, plane_info->data->max_width);
+ max_height = max_t(u32, max_height, plane_info->data->max_height);
+ }
+
+ if (plane_info->type == DRM_PLANE_TYPE_CURSOR) {
+ if (plane_info->id == CURSOR_PLANE_0)
+ dc->crtc[0]->base.cursor = &plane->base;
+ else
+ dc->crtc[1]->base.cursor = &plane->base;
+ drm_dev->mode_config.cursor_width = plane_info->data->max_width;
+ drm_dev->mode_config.cursor_height = plane_info->data->max_height;
+ }
+ }
+
+ drm_dev->mode_config.min_width = min_width;
+ drm_dev->mode_config.min_height = min_heigth;
+ drm_dev->mode_config.max_width = max_width;
+ drm_dev->mode_config.max_height = max_height;
+
+ if (dc_info->pitch_alignment > priv->pitch_alignment)
+ priv->pitch_alignment = dc_info->pitch_alignment;
+
+ return 0;
+}
+
+static int vs_load(struct vs_drm_device *priv)
+{
+ int ret;
+
+ ret = clk_bulk_prepare_enable(priv->clk_count, priv->clks);
+ if (ret)
+ return ret;
+
+ reset_control_deassert(priv->rsts);
+
+ ret = dc_hw_init(&priv->dc);
+ if (ret) {
+ DRM_ERROR("failed to init DC HW\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+static void vs_mipi_encoder_disable(struct drm_encoder *encoder)
+{
+ struct drm_device *dev = encoder->dev;
+ struct vs_drm_device *priv = to_vs_drm_private(dev);
+ int idx;
+
+ if (!drm_dev_enter(dev, &idx))
+ return;
+
+ regmap_update_bits(priv->dc_syscon_regmap, STARFIVE_SOC_CON8, STARFIVE_MIPI_SEL, 0);
+
+ drm_dev_exit(idx);
+}
+
+static void vs_mipi_encoder_enable(struct drm_encoder *encoder)
+{
+ struct drm_device *dev = encoder->dev;
+ struct vs_drm_device *priv = to_vs_drm_private(dev);
+ int idx;
+
+ if (!drm_dev_enter(dev, &idx))
+ return;
+
+ regmap_update_bits(priv->dc_syscon_regmap, STARFIVE_SOC_CON8, STARFIVE_MIPI_SEL, BIT(3));
+
+ drm_dev_exit(idx);
+}
+
+static const struct drm_encoder_helper_funcs vs_mipi_encoder_helper_funcs = {
+ .disable = vs_mipi_encoder_disable,
+ .enable = vs_mipi_encoder_enable,
+};
+
+static int vs_attach_mipi_bridge(struct vs_drm_device *priv)
+{
+ struct device *dev = priv->base.dev;
+ struct drm_bridge *bridge;
+ struct drm_encoder *encoder;
+ int ret;
+
+ bridge = devm_drm_of_get_bridge(dev, dev->of_node, 1, 1);
+ if (IS_ERR(bridge)) {
+ if (PTR_ERR(bridge) == -ENODEV) {
+ bridge = NULL;
+ return 0;
+ }
+
+ return PTR_ERR(bridge);
+ }
+
+ /* Create the encoder and attach the bridge. */
+ encoder = devm_kzalloc(dev, sizeof(*encoder), GFP_KERNEL);
+ if (!encoder)
+ return -ENOMEM;
+
+ encoder->possible_crtcs = drm_crtc_mask(&priv->dc.crtc[1]->base);
+
+ ret = drmm_encoder_init(&priv->base, encoder, NULL, DRM_MODE_ENCODER_DSI, NULL);
+ if (ret) {
+ dev_err(dev, "Failed to initialize encoder\n");
+ return ret;
+ }
+
+ drm_encoder_helper_add(encoder, &vs_mipi_encoder_helper_funcs);
+
+ ret = drm_bridge_attach(encoder, bridge, NULL, 0);
+ if (ret)
+ return dev_err_probe(dev, ret, "Failed to attach bridge\n");
+
+ return 0;
+}
+
+static int vs_drm_bind(struct device *dev)
+{
+ struct vs_drm_device *priv;
+ int ret;
+ struct drm_device *drm_dev;
+
+ priv = devm_drm_dev_alloc(dev, &vs_drm_driver, struct vs_drm_device, base);
+ if (IS_ERR(priv))
+ return PTR_ERR(priv);
+
+ priv->pitch_alignment = 64;
+ drm_dev = &priv->base;
+ dev_set_drvdata(dev, drm_dev);
+
+ ret = dma_set_coherent_mask(drm_dev->dev, DMA_BIT_MASK(40));
+ if (ret)
+ return ret;
+
+ ret = vs_drm_device_init_res(priv);
+ if (ret)
+ return ret;
+
+ vs_mode_config_init(drm_dev);
+
+ /* Remove existing drivers that may own the framebuffer memory. */
+ ret = drm_aperture_remove_framebuffers(&vs_drm_driver);
+ if (ret)
+ return ret;
+
+ ret = vs_kms_init(priv);
+ if (ret) {
+ DRM_ERROR("Failed to initialize KMS pipeline\n");
+ return ret;
+ }
+
+ ret = vs_load(priv);
+ if (ret)
+ return ret;
+
+ /* Now try and bind all our sub-components */
+ ret = component_bind_all(dev, drm_dev);
+ if (ret) {
+ ret = -EPROBE_DEFER;
+ goto unload;
+ }
+
+ ret = vs_attach_mipi_bridge(priv);
+ if (ret)
+ goto err_unbind_all;
+
+ ret = drm_vblank_init(drm_dev, drm_dev->mode_config.num_crtc);
+ if (ret)
+ goto err_unbind_all;
+
+ drm_mode_config_reset(drm_dev);
+
+ ret = drmm_kms_helper_poll_init(drm_dev);
+ if (ret)
+ goto err_unbind_all;
+
+ ret = drm_dev_register(drm_dev, 0);
+ if (ret)
+ goto err_unbind_all;
+
+ drm_client_setup(drm_dev, NULL);
+
+ return 0;
+
+err_unbind_all:
+ component_unbind_all(drm_dev->dev, drm_dev);
+unload:
+ reset_control_assert(priv->rsts);
+ clk_bulk_disable_unprepare(priv->clk_count, priv->clks);
+ return ret;
+}
+
+static void vs_drm_unbind(struct device *dev)
+{
+ struct drm_device *drm_dev = dev_get_drvdata(dev);
+ struct vs_drm_device *priv = to_vs_drm_private(drm_dev);
+
+ reset_control_assert(priv->rsts);
+ clk_bulk_disable_unprepare(priv->clk_count, priv->clks);
+
+ drm_dev_unregister(drm_dev);
+ drm_atomic_helper_shutdown(drm_dev);
+ component_unbind_all(drm_dev->dev, drm_dev);
+}
+
+static const struct component_master_ops vs_drm_ops = {
+ .bind = vs_drm_bind,
+ .unbind = vs_drm_unbind,
+};
+
+static struct platform_driver *drm_sub_drivers[] = {
+#ifdef CONFIG_DRM_INNO_STARFIVE_HDMI
+ &starfive_hdmi_driver,
+#endif
+};
+
+static struct component_match *vs_add_external_components(struct device *dev)
+{
+ struct component_match *match = NULL;
+ struct device_node *node;
+
+#ifdef CONFIG_DRM_INNO_STARFIVE_HDMI
+ node = of_graph_get_remote_node(dev->of_node, 0, 0);
+ drm_of_component_match_add(dev, &match, component_compare_of, node);
+ of_node_put(node);
+#endif
+
+ return match ? match : ERR_PTR(-ENODEV);
+}
+
+static int vs_drm_platform_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct component_match *match;
+
+ /* all the planes and CRTC would be created in this platform device,
+ * so external components are encoder + connector
+ */
+ match = vs_add_external_components(dev);
+ if (IS_ERR(match))
+ return PTR_ERR(match);
+
+ return component_master_add_with_match(dev, &vs_drm_ops, match);
+}
+
+static void vs_drm_platform_remove(struct platform_device *pdev)
+{
+ component_master_del(&pdev->dev, &vs_drm_ops);
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int vs_drm_suspend(struct device *dev)
+{
+ return drm_mode_config_helper_suspend(dev_get_drvdata(dev));
+}
+
+static int vs_drm_resume(struct device *dev)
+{
+ drm_mode_config_helper_resume(dev_get_drvdata(dev));
+
+ return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(vs_drm_pm_ops, vs_drm_suspend, vs_drm_resume);
+
+static const struct of_device_id vs_drm_dt_ids[] = {
+ { .compatible = "starfive,jh7110-dc8200", .data = &dc8200_info,},
+ { },
+};
+
+MODULE_DEVICE_TABLE(of, vs_drm_dt_ids);
+
+static struct platform_driver vs_drm_platform_driver = {
+ .probe = vs_drm_platform_probe,
+ .remove = vs_drm_platform_remove,
+
+ .driver = {
+ .name = DRV_NAME,
+ .of_match_table = vs_drm_dt_ids,
+ .pm = &vs_drm_pm_ops,
+ },
+};
+
+static int __init vs_drm_init(void)
+{
+ int ret;
+
+ ret = platform_register_drivers(drm_sub_drivers, ARRAY_SIZE(drm_sub_drivers));
+ if (ret)
+ return ret;
+
+ ret = drm_platform_driver_register(&vs_drm_platform_driver);
+ if (ret)
+ platform_unregister_drivers(drm_sub_drivers, ARRAY_SIZE(drm_sub_drivers));
+
+ return ret;
+}
+
+static void __exit vs_drm_fini(void)
+{
+ platform_driver_unregister(&vs_drm_platform_driver);
+ platform_unregister_drivers(drm_sub_drivers, ARRAY_SIZE(drm_sub_drivers));
+}
+
+module_init(vs_drm_init);
+module_exit(vs_drm_fini);
+
+MODULE_DESCRIPTION("VeriSilicon DRM Driver");
+MODULE_LICENSE("GPL");
--
2.34.1
