diff options
Diffstat (limited to 'drivers/gpu/drm/meson/meson_drv.c')
| -rw-r--r-- | drivers/gpu/drm/meson/meson_drv.c | 153 |
1 files changed, 103 insertions, 50 deletions
diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c index 6f2fd82ed483..75382f5f0fce 100644 --- a/drivers/gpu/drm/meson/meson_drv.c +++ b/drivers/gpu/drm/meson/meson_drv.c @@ -24,6 +24,7 @@ #include <linux/module.h> #include <linux/mutex.h> #include <linux/platform_device.h> +#include <linux/component.h> #include <linux/of_graph.h> #include <drm/drmP.h> @@ -51,13 +52,14 @@ #define DRIVER_NAME "meson" #define DRIVER_DESC "Amlogic Meson DRM driver" -/* - * Video Processing Unit +/** + * DOC: Video Processing Unit * * VPU Handles the Global Video Processing, it includes management of the * clocks gates, blocks reset lines and power domains. * * What is missing : + * * - Full reset of entire video processing HW blocks * - Scaling and setup of the VPU clock * - Bus clock gates @@ -79,22 +81,6 @@ static const struct drm_mode_config_funcs meson_mode_config_funcs = { .fb_create = drm_fb_cma_create, }; -static int meson_enable_vblank(struct drm_device *dev, unsigned int crtc) -{ - struct meson_drm *priv = dev->dev_private; - - meson_venc_enable_vsync(priv); - - return 0; -} - -static void meson_disable_vblank(struct drm_device *dev, unsigned int crtc) -{ - struct meson_drm *priv = dev->dev_private; - - meson_venc_disable_vsync(priv); -} - static irqreturn_t meson_irq(int irq, void *arg) { struct drm_device *dev = arg; @@ -107,30 +93,13 @@ static irqreturn_t meson_irq(int irq, void *arg) return IRQ_HANDLED; } -static const struct file_operations fops = { - .owner = THIS_MODULE, - .open = drm_open, - .release = drm_release, - .unlocked_ioctl = drm_ioctl, -#ifdef CONFIG_COMPAT - .compat_ioctl = drm_compat_ioctl, -#endif - .poll = drm_poll, - .read = drm_read, - .llseek = no_llseek, - .mmap = drm_gem_cma_mmap, -}; +DEFINE_DRM_GEM_CMA_FOPS(fops); static struct drm_driver meson_driver = { .driver_features = DRIVER_HAVE_IRQ | DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_ATOMIC, - /* Vblank */ - .enable_vblank = meson_enable_vblank, - .disable_vblank = meson_disable_vblank, - .get_vblank_counter = drm_vblank_no_hw_counter, - /* IRQ */ .irq_handler = meson_irq, @@ -183,9 +152,9 @@ static struct regmap_config meson_regmap_config = { .max_register = 0x1000, }; -static int meson_drv_probe(struct platform_device *pdev) +static int meson_drv_bind(struct device *dev) { - struct device *dev = &pdev->dev; + struct platform_device *pdev = to_platform_device(dev); struct meson_drm *priv; struct drm_device *drm; struct resource *res; @@ -248,6 +217,15 @@ static int meson_drv_probe(struct platform_device *pdev) drm_vblank_init(drm, 1); drm_mode_config_init(drm); + drm->mode_config.max_width = 3840; + drm->mode_config.max_height = 2160; + drm->mode_config.funcs = &meson_mode_config_funcs; + + /* Hardware Initialization */ + + meson_venc_init(priv); + meson_vpp_init(priv); + meson_viu_init(priv); /* Encoder Initialization */ @@ -255,11 +233,11 @@ static int meson_drv_probe(struct platform_device *pdev) if (ret) goto free_drm; - /* Hardware Initialization */ - - meson_venc_init(priv); - meson_vpp_init(priv); - meson_viu_init(priv); + ret = component_bind_all(drm->dev, drm); + if (ret) { + dev_err(drm->dev, "Couldn't bind all components\n"); + goto free_drm; + } ret = meson_plane_create(priv); if (ret) @@ -274,9 +252,6 @@ static int meson_drv_probe(struct platform_device *pdev) goto free_drm; drm_mode_config_reset(drm); - drm->mode_config.max_width = 8192; - drm->mode_config.max_height = 8192; - drm->mode_config.funcs = &meson_mode_config_funcs; priv->fbdev = drm_fbdev_cma_init(drm, 32, drm->mode_config.num_connector); @@ -301,9 +276,9 @@ free_drm: return ret; } -static int meson_drv_remove(struct platform_device *pdev) +static void meson_drv_unbind(struct device *dev) { - struct drm_device *drm = dev_get_drvdata(&pdev->dev); + struct drm_device *drm = dev_get_drvdata(dev); struct meson_drm *priv = drm->dev_private; drm_dev_unregister(drm); @@ -313,9 +288,88 @@ static int meson_drv_remove(struct platform_device *pdev) drm_vblank_cleanup(drm); drm_dev_unref(drm); - return 0; } +static const struct component_master_ops meson_drv_master_ops = { + .bind = meson_drv_bind, + .unbind = meson_drv_unbind, +}; + +static int compare_of(struct device *dev, void *data) +{ + DRM_DEBUG_DRIVER("Comparing of node %s with %s\n", + of_node_full_name(dev->of_node), + of_node_full_name(data)); + + return dev->of_node == data; +} + +/* Possible connectors nodes to ignore */ +static const struct of_device_id connectors_match[] = { + { .compatible = "composite-video-connector" }, + { .compatible = "svideo-connector" }, + { .compatible = "hdmi-connector" }, + { .compatible = "dvi-connector" }, + {} +}; + +static int meson_probe_remote(struct platform_device *pdev, + struct component_match **match, + struct device_node *parent, + struct device_node *remote) +{ + struct device_node *ep, *remote_node; + int count = 1; + + /* If node is a connector, return and do not add to match table */ + if (of_match_node(connectors_match, remote)) + return 1; + + component_match_add(&pdev->dev, match, compare_of, remote); + + for_each_endpoint_of_node(remote, ep) { + remote_node = of_graph_get_remote_port_parent(ep); + if (!remote_node || + remote_node == parent || /* Ignore parent endpoint */ + !of_device_is_available(remote_node)) + continue; + + count += meson_probe_remote(pdev, match, remote, remote_node); + + of_node_put(remote_node); + } + + return count; +} + +static int meson_drv_probe(struct platform_device *pdev) +{ + struct component_match *match = NULL; + struct device_node *np = pdev->dev.of_node; + struct device_node *ep, *remote; + int count = 0; + + for_each_endpoint_of_node(np, ep) { + remote = of_graph_get_remote_port_parent(ep); + if (!remote || !of_device_is_available(remote)) + continue; + + count += meson_probe_remote(pdev, &match, np, remote); + } + + /* If some endpoints were found, initialize the nodes */ + if (count) { + dev_info(&pdev->dev, "Queued %d outputs on vpu\n", count); + + return component_master_add_with_match(&pdev->dev, + &meson_drv_master_ops, + match); + } + + /* If no output endpoints were available, simply bail out */ + return 0; +}; + static const struct of_device_id dt_match[] = { { .compatible = "amlogic,meson-gxbb-vpu" }, { .compatible = "amlogic,meson-gxl-vpu" }, @@ -326,7 +380,6 @@ MODULE_DEVICE_TABLE(of, dt_match); static struct platform_driver meson_drm_platform_driver = { .probe = meson_drv_probe, - .remove = meson_drv_remove, .driver = { .name = "meson-drm", .of_match_table = dt_match, |