From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- drivers/gpu/drm/armada/armada_drv.c | 279 ++++++++++++++++++++++++++++++++++++ 1 file changed, 279 insertions(+) create mode 100644 drivers/gpu/drm/armada/armada_drv.c (limited to 'drivers/gpu/drm/armada/armada_drv.c') diff --git a/drivers/gpu/drm/armada/armada_drv.c b/drivers/gpu/drm/armada/armada_drv.c new file mode 100644 index 0000000000..e8d2fe9559 --- /dev/null +++ b/drivers/gpu/drm/armada/armada_drv.c @@ -0,0 +1,279 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2012 Russell King + */ + +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "armada_crtc.h" +#include "armada_drm.h" +#include "armada_gem.h" +#include "armada_fb.h" +#include "armada_hw.h" +#include +#include "armada_ioctlP.h" + +static const struct drm_ioctl_desc armada_ioctls[] = { + DRM_IOCTL_DEF_DRV(ARMADA_GEM_CREATE, armada_gem_create_ioctl,0), + DRM_IOCTL_DEF_DRV(ARMADA_GEM_MMAP, armada_gem_mmap_ioctl, 0), + DRM_IOCTL_DEF_DRV(ARMADA_GEM_PWRITE, armada_gem_pwrite_ioctl, 0), +}; + +DEFINE_DRM_GEM_FOPS(armada_drm_fops); + +static const struct drm_driver armada_drm_driver = { + .gem_prime_import = armada_gem_prime_import, + .dumb_create = armada_gem_dumb_create, + .major = 1, + .minor = 0, + .name = "armada-drm", + .desc = "Armada SoC DRM", + .date = "20120730", + .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC, + .ioctls = armada_ioctls, + .num_ioctls = ARRAY_SIZE(armada_ioctls), + .fops = &armada_drm_fops, +}; + +static const struct drm_mode_config_funcs armada_drm_mode_config_funcs = { + .fb_create = armada_fb_create, + .atomic_check = drm_atomic_helper_check, + .atomic_commit = drm_atomic_helper_commit, +}; + +static int armada_drm_bind(struct device *dev) +{ + struct armada_private *priv; + struct resource *mem = NULL; + int ret, n; + + for (n = 0; ; n++) { + struct resource *r = platform_get_resource(to_platform_device(dev), + IORESOURCE_MEM, n); + if (!r) + break; + + /* Resources above 64K are graphics memory */ + if (resource_size(r) > SZ_64K) + mem = r; + else + return -EINVAL; + } + + if (!mem) + return -ENXIO; + + if (!devm_request_mem_region(dev, mem->start, resource_size(mem), + "armada-drm")) + return -EBUSY; + + priv = devm_drm_dev_alloc(dev, &armada_drm_driver, + struct armada_private, drm); + if (IS_ERR(priv)) { + dev_err(dev, "[" DRM_NAME ":%s] devm_drm_dev_alloc failed: %li\n", + __func__, PTR_ERR(priv)); + return PTR_ERR(priv); + } + + /* Remove early framebuffers */ + ret = drm_aperture_remove_framebuffers(&armada_drm_driver); + if (ret) { + dev_err(dev, "[" DRM_NAME ":%s] can't kick out simple-fb: %d\n", + __func__, ret); + return ret; + } + + dev_set_drvdata(dev, &priv->drm); + + /* Mode setting support */ + drm_mode_config_init(&priv->drm); + priv->drm.mode_config.min_width = 320; + priv->drm.mode_config.min_height = 200; + + /* + * With vscale enabled, the maximum width is 1920 due to the + * 1920 by 3 lines RAM + */ + priv->drm.mode_config.max_width = 1920; + priv->drm.mode_config.max_height = 2048; + + priv->drm.mode_config.preferred_depth = 24; + priv->drm.mode_config.funcs = &armada_drm_mode_config_funcs; + drm_mm_init(&priv->linear, mem->start, resource_size(mem)); + mutex_init(&priv->linear_lock); + + ret = component_bind_all(dev, &priv->drm); + if (ret) + goto err_kms; + + ret = drm_vblank_init(&priv->drm, priv->drm.mode_config.num_crtc); + if (ret) + goto err_comp; + + drm_mode_config_reset(&priv->drm); + + drm_kms_helper_poll_init(&priv->drm); + + ret = drm_dev_register(&priv->drm, 0); + if (ret) + goto err_poll; + +#ifdef CONFIG_DEBUG_FS + armada_drm_debugfs_init(priv->drm.primary); +#endif + + armada_fbdev_setup(&priv->drm); + + return 0; + + err_poll: + drm_kms_helper_poll_fini(&priv->drm); + err_comp: + component_unbind_all(dev, &priv->drm); + err_kms: + drm_mode_config_cleanup(&priv->drm); + drm_mm_takedown(&priv->linear); + return ret; +} + +static void armada_drm_unbind(struct device *dev) +{ + struct drm_device *drm = dev_get_drvdata(dev); + struct armada_private *priv = drm_to_armada_dev(drm); + + drm_kms_helper_poll_fini(&priv->drm); + + drm_dev_unregister(&priv->drm); + + drm_atomic_helper_shutdown(&priv->drm); + + component_unbind_all(dev, &priv->drm); + + drm_mode_config_cleanup(&priv->drm); + drm_mm_takedown(&priv->linear); +} + +static void armada_add_endpoints(struct device *dev, + struct component_match **match, struct device_node *dev_node) +{ + struct device_node *ep, *remote; + + for_each_endpoint_of_node(dev_node, ep) { + remote = of_graph_get_remote_port_parent(ep); + if (remote && of_device_is_available(remote)) + drm_of_component_match_add(dev, match, component_compare_of, + remote); + of_node_put(remote); + } +} + +static const struct component_master_ops armada_master_ops = { + .bind = armada_drm_bind, + .unbind = armada_drm_unbind, +}; + +static int armada_drm_probe(struct platform_device *pdev) +{ + struct component_match *match = NULL; + struct device *dev = &pdev->dev; + int ret; + + ret = drm_of_component_probe(dev, component_compare_dev_name, &armada_master_ops); + if (ret != -EINVAL) + return ret; + + if (dev->platform_data) { + char **devices = dev->platform_data; + struct device *d; + int i; + + for (i = 0; devices[i]; i++) + component_match_add(dev, &match, component_compare_dev_name, + devices[i]); + + if (i == 0) { + dev_err(dev, "missing 'ports' property\n"); + return -ENODEV; + } + + for (i = 0; devices[i]; i++) { + d = bus_find_device_by_name(&platform_bus_type, NULL, + devices[i]); + if (d && d->of_node) + armada_add_endpoints(dev, &match, d->of_node); + put_device(d); + } + } + + return component_master_add_with_match(&pdev->dev, &armada_master_ops, + match); +} + +static int armada_drm_remove(struct platform_device *pdev) +{ + component_master_del(&pdev->dev, &armada_master_ops); + return 0; +} + +static const struct platform_device_id armada_drm_platform_ids[] = { + { + .name = "armada-drm", + }, { + .name = "armada-510-drm", + }, + { }, +}; +MODULE_DEVICE_TABLE(platform, armada_drm_platform_ids); + +static struct platform_driver armada_drm_platform_driver = { + .probe = armada_drm_probe, + .remove = armada_drm_remove, + .driver = { + .name = "armada-drm", + }, + .id_table = armada_drm_platform_ids, +}; + +static int __init armada_drm_init(void) +{ + int ret; + + if (drm_firmware_drivers_only()) + return -ENODEV; + + ret = platform_driver_register(&armada_lcd_platform_driver); + if (ret) + return ret; + ret = platform_driver_register(&armada_drm_platform_driver); + if (ret) + platform_driver_unregister(&armada_lcd_platform_driver); + return ret; +} +module_init(armada_drm_init); + +static void __exit armada_drm_exit(void) +{ + platform_driver_unregister(&armada_drm_platform_driver); + platform_driver_unregister(&armada_lcd_platform_driver); +} +module_exit(armada_drm_exit); + +MODULE_AUTHOR("Russell King "); +MODULE_DESCRIPTION("Armada DRM Driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:armada-drm"); -- cgit v1.2.3