mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-23 23:46:09 +07:00
528a25d040
This patch introduce new enum which contains all VPU family (GXBB, GXL, GXM and G12A). This enum is used to detect the VPU compatible with the device. We only need to set .data to the corresponding enum in the device table, no need to check .compatible string anymore. Signed-off-by: Julien Masson <jmasson@baylibre.com> Tested-by: Neil Armstrong <narmstrong@baylibre.com> Acked-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Link: https://patchwork.freedesktop.org/patch/msgid/87imqpz21w.fsf@masson.i-did-not-set--mail-host-address--so-tickle-me
484 lines
12 KiB
C
484 lines
12 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (C) 2016 BayLibre, SAS
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* Author: Neil Armstrong <narmstrong@baylibre.com>
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* Copyright (C) 2014 Endless Mobile
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*
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* Written by:
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* Jasper St. Pierre <jstpierre@mecheye.net>
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*/
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#include <linux/component.h>
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#include <linux/module.h>
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#include <linux/of_graph.h>
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#include <linux/platform_device.h>
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#include <linux/soc/amlogic/meson-canvas.h>
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#include <drm/drm_atomic_helper.h>
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#include <drm/drm_drv.h>
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#include <drm/drm_fb_helper.h>
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#include <drm/drm_gem_cma_helper.h>
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#include <drm/drm_gem_framebuffer_helper.h>
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#include <drm/drm_irq.h>
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#include <drm/drm_modeset_helper_vtables.h>
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#include <drm/drm_probe_helper.h>
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#include <drm/drm_vblank.h>
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#include "meson_crtc.h"
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#include "meson_drv.h"
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#include "meson_overlay.h"
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#include "meson_plane.h"
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#include "meson_registers.h"
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#include "meson_venc_cvbs.h"
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#include "meson_viu.h"
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#include "meson_vpp.h"
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#define DRIVER_NAME "meson"
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#define DRIVER_DESC "Amlogic Meson DRM driver"
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/**
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* DOC: Video Processing Unit
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*
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* VPU Handles the Global Video Processing, it includes management of the
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* clocks gates, blocks reset lines and power domains.
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*
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* What is missing :
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*
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* - Full reset of entire video processing HW blocks
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* - Scaling and setup of the VPU clock
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* - Bus clock gates
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* - Powering up video processing HW blocks
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* - Powering Up HDMI controller and PHY
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*/
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static const struct drm_mode_config_funcs meson_mode_config_funcs = {
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.atomic_check = drm_atomic_helper_check,
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.atomic_commit = drm_atomic_helper_commit,
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.fb_create = drm_gem_fb_create,
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};
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static const struct drm_mode_config_helper_funcs meson_mode_config_helpers = {
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.atomic_commit_tail = drm_atomic_helper_commit_tail_rpm,
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};
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static irqreturn_t meson_irq(int irq, void *arg)
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{
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struct drm_device *dev = arg;
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struct meson_drm *priv = dev->dev_private;
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(void)readl_relaxed(priv->io_base + _REG(VENC_INTFLAG));
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meson_crtc_irq(priv);
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return IRQ_HANDLED;
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}
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static int meson_dumb_create(struct drm_file *file, struct drm_device *dev,
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struct drm_mode_create_dumb *args)
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{
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/*
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* We need 64bytes aligned stride, and PAGE aligned size
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*/
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args->pitch = ALIGN(DIV_ROUND_UP(args->width * args->bpp, 8), SZ_64);
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args->size = PAGE_ALIGN(args->pitch * args->height);
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return drm_gem_cma_dumb_create_internal(file, dev, args);
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}
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DEFINE_DRM_GEM_CMA_FOPS(fops);
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static struct drm_driver meson_driver = {
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.driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
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/* IRQ */
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.irq_handler = meson_irq,
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/* PRIME Ops */
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.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
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.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
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.gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table,
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.gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table,
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.gem_prime_vmap = drm_gem_cma_prime_vmap,
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.gem_prime_vunmap = drm_gem_cma_prime_vunmap,
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.gem_prime_mmap = drm_gem_cma_prime_mmap,
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/* GEM Ops */
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.dumb_create = meson_dumb_create,
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.gem_free_object_unlocked = drm_gem_cma_free_object,
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.gem_vm_ops = &drm_gem_cma_vm_ops,
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/* Misc */
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.fops = &fops,
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.name = DRIVER_NAME,
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.desc = DRIVER_DESC,
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.date = "20161109",
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.major = 1,
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.minor = 0,
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};
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static bool meson_vpu_has_available_connectors(struct device *dev)
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{
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struct device_node *ep, *remote;
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/* Parses each endpoint and check if remote exists */
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for_each_endpoint_of_node(dev->of_node, ep) {
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/* If the endpoint node exists, consider it enabled */
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remote = of_graph_get_remote_port(ep);
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if (remote)
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return true;
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}
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return false;
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}
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static struct regmap_config meson_regmap_config = {
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.reg_bits = 32,
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.val_bits = 32,
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.reg_stride = 4,
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.max_register = 0x1000,
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};
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static void meson_vpu_init(struct meson_drm *priv)
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{
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u32 value;
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/*
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* Slave dc0 and dc5 connected to master port 1.
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* By default other slaves are connected to master port 0.
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*/
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value = VPU_RDARB_SLAVE_TO_MASTER_PORT(0, 1) |
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VPU_RDARB_SLAVE_TO_MASTER_PORT(5, 1);
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writel_relaxed(value, priv->io_base + _REG(VPU_RDARB_MODE_L1C1));
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/* Slave dc0 connected to master port 1 */
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value = VPU_RDARB_SLAVE_TO_MASTER_PORT(0, 1);
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writel_relaxed(value, priv->io_base + _REG(VPU_RDARB_MODE_L1C2));
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/* Slave dc4 and dc7 connected to master port 1 */
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value = VPU_RDARB_SLAVE_TO_MASTER_PORT(4, 1) |
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VPU_RDARB_SLAVE_TO_MASTER_PORT(7, 1);
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writel_relaxed(value, priv->io_base + _REG(VPU_RDARB_MODE_L2C1));
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/* Slave dc1 connected to master port 1 */
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value = VPU_RDARB_SLAVE_TO_MASTER_PORT(1, 1);
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writel_relaxed(value, priv->io_base + _REG(VPU_WRARB_MODE_L2C1));
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}
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static void meson_remove_framebuffers(void)
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{
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struct apertures_struct *ap;
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ap = alloc_apertures(1);
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if (!ap)
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return;
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/* The framebuffer can be located anywhere in RAM */
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ap->ranges[0].base = 0;
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ap->ranges[0].size = ~0;
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drm_fb_helper_remove_conflicting_framebuffers(ap, "meson-drm-fb",
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false);
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kfree(ap);
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}
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static int meson_drv_bind_master(struct device *dev, bool has_components)
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{
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struct platform_device *pdev = to_platform_device(dev);
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struct meson_drm *priv;
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struct drm_device *drm;
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struct resource *res;
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void __iomem *regs;
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int ret;
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/* Checks if an output connector is available */
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if (!meson_vpu_has_available_connectors(dev)) {
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dev_err(dev, "No output connector available\n");
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return -ENODEV;
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}
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drm = drm_dev_alloc(&meson_driver, dev);
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if (IS_ERR(drm))
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return PTR_ERR(drm);
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priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
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if (!priv) {
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ret = -ENOMEM;
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goto free_drm;
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}
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drm->dev_private = priv;
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priv->drm = drm;
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priv->dev = dev;
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priv->compat = (enum vpu_compatible)of_device_get_match_data(priv->dev);
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res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "vpu");
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regs = devm_ioremap_resource(dev, res);
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if (IS_ERR(regs)) {
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ret = PTR_ERR(regs);
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goto free_drm;
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}
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priv->io_base = regs;
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res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "hhi");
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if (!res) {
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ret = -EINVAL;
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goto free_drm;
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}
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/* Simply ioremap since it may be a shared register zone */
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regs = devm_ioremap(dev, res->start, resource_size(res));
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if (!regs) {
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ret = -EADDRNOTAVAIL;
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goto free_drm;
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}
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priv->hhi = devm_regmap_init_mmio(dev, regs,
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&meson_regmap_config);
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if (IS_ERR(priv->hhi)) {
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dev_err(&pdev->dev, "Couldn't create the HHI regmap\n");
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ret = PTR_ERR(priv->hhi);
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goto free_drm;
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}
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priv->canvas = meson_canvas_get(dev);
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if (IS_ERR(priv->canvas)) {
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ret = PTR_ERR(priv->canvas);
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goto free_drm;
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}
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ret = meson_canvas_alloc(priv->canvas, &priv->canvas_id_osd1);
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if (ret)
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goto free_drm;
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ret = meson_canvas_alloc(priv->canvas, &priv->canvas_id_vd1_0);
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if (ret) {
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meson_canvas_free(priv->canvas, priv->canvas_id_osd1);
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goto free_drm;
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}
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ret = meson_canvas_alloc(priv->canvas, &priv->canvas_id_vd1_1);
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if (ret) {
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meson_canvas_free(priv->canvas, priv->canvas_id_osd1);
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meson_canvas_free(priv->canvas, priv->canvas_id_vd1_0);
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goto free_drm;
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}
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ret = meson_canvas_alloc(priv->canvas, &priv->canvas_id_vd1_2);
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if (ret) {
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meson_canvas_free(priv->canvas, priv->canvas_id_osd1);
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meson_canvas_free(priv->canvas, priv->canvas_id_vd1_0);
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meson_canvas_free(priv->canvas, priv->canvas_id_vd1_1);
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goto free_drm;
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}
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priv->vsync_irq = platform_get_irq(pdev, 0);
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ret = drm_vblank_init(drm, 1);
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if (ret)
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goto free_drm;
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/* Remove early framebuffers (ie. simplefb) */
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meson_remove_framebuffers();
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drm_mode_config_init(drm);
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drm->mode_config.max_width = 3840;
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drm->mode_config.max_height = 2160;
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drm->mode_config.funcs = &meson_mode_config_funcs;
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drm->mode_config.helper_private = &meson_mode_config_helpers;
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/* Hardware Initialization */
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meson_vpu_init(priv);
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meson_venc_init(priv);
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meson_vpp_init(priv);
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meson_viu_init(priv);
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/* Encoder Initialization */
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ret = meson_venc_cvbs_create(priv);
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if (ret)
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goto free_drm;
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if (has_components) {
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ret = component_bind_all(drm->dev, drm);
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if (ret) {
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dev_err(drm->dev, "Couldn't bind all components\n");
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goto free_drm;
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}
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}
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ret = meson_plane_create(priv);
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if (ret)
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goto free_drm;
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ret = meson_overlay_create(priv);
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if (ret)
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goto free_drm;
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ret = meson_crtc_create(priv);
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if (ret)
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goto free_drm;
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ret = drm_irq_install(drm, priv->vsync_irq);
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if (ret)
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goto free_drm;
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drm_mode_config_reset(drm);
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drm_kms_helper_poll_init(drm);
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platform_set_drvdata(pdev, priv);
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ret = drm_dev_register(drm, 0);
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if (ret)
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goto uninstall_irq;
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drm_fbdev_generic_setup(drm, 32);
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return 0;
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uninstall_irq:
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drm_irq_uninstall(drm);
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free_drm:
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drm_dev_put(drm);
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return ret;
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}
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static int meson_drv_bind(struct device *dev)
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{
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return meson_drv_bind_master(dev, true);
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}
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static void meson_drv_unbind(struct device *dev)
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{
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struct meson_drm *priv = dev_get_drvdata(dev);
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struct drm_device *drm = priv->drm;
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if (priv->canvas) {
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meson_canvas_free(priv->canvas, priv->canvas_id_osd1);
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meson_canvas_free(priv->canvas, priv->canvas_id_vd1_0);
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meson_canvas_free(priv->canvas, priv->canvas_id_vd1_1);
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meson_canvas_free(priv->canvas, priv->canvas_id_vd1_2);
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}
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drm_dev_unregister(drm);
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drm_irq_uninstall(drm);
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drm_kms_helper_poll_fini(drm);
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drm_mode_config_cleanup(drm);
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drm_dev_put(drm);
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}
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static const struct component_master_ops meson_drv_master_ops = {
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.bind = meson_drv_bind,
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.unbind = meson_drv_unbind,
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};
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static int compare_of(struct device *dev, void *data)
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{
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DRM_DEBUG_DRIVER("Comparing of node %pOF with %pOF\n",
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dev->of_node, data);
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return dev->of_node == data;
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}
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/* Possible connectors nodes to ignore */
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static const struct of_device_id connectors_match[] = {
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{ .compatible = "composite-video-connector" },
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{ .compatible = "svideo-connector" },
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{ .compatible = "hdmi-connector" },
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{ .compatible = "dvi-connector" },
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{}
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};
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static int meson_probe_remote(struct platform_device *pdev,
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struct component_match **match,
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struct device_node *parent,
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struct device_node *remote)
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{
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struct device_node *ep, *remote_node;
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int count = 1;
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/* If node is a connector, return and do not add to match table */
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if (of_match_node(connectors_match, remote))
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return 1;
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component_match_add(&pdev->dev, match, compare_of, remote);
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for_each_endpoint_of_node(remote, ep) {
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remote_node = of_graph_get_remote_port_parent(ep);
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if (!remote_node ||
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remote_node == parent || /* Ignore parent endpoint */
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!of_device_is_available(remote_node)) {
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of_node_put(remote_node);
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continue;
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}
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count += meson_probe_remote(pdev, match, remote, remote_node);
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of_node_put(remote_node);
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}
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return count;
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}
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static int meson_drv_probe(struct platform_device *pdev)
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{
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struct component_match *match = NULL;
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struct device_node *np = pdev->dev.of_node;
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struct device_node *ep, *remote;
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int count = 0;
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for_each_endpoint_of_node(np, ep) {
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remote = of_graph_get_remote_port_parent(ep);
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if (!remote || !of_device_is_available(remote)) {
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of_node_put(remote);
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continue;
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}
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count += meson_probe_remote(pdev, &match, np, remote);
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of_node_put(remote);
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}
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if (count && !match)
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return meson_drv_bind_master(&pdev->dev, false);
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/* If some endpoints were found, initialize the nodes */
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if (count) {
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dev_info(&pdev->dev, "Queued %d outputs on vpu\n", count);
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return component_master_add_with_match(&pdev->dev,
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&meson_drv_master_ops,
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match);
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}
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/* If no output endpoints were available, simply bail out */
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return 0;
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};
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static const struct of_device_id dt_match[] = {
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{ .compatible = "amlogic,meson-gxbb-vpu",
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.data = (void *)VPU_COMPATIBLE_GXBB },
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{ .compatible = "amlogic,meson-gxl-vpu",
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.data = (void *)VPU_COMPATIBLE_GXL },
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{ .compatible = "amlogic,meson-gxm-vpu",
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.data = (void *)VPU_COMPATIBLE_GXM },
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{ .compatible = "amlogic,meson-g12a-vpu",
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.data = (void *)VPU_COMPATIBLE_G12A },
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{}
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};
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MODULE_DEVICE_TABLE(of, dt_match);
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static struct platform_driver meson_drm_platform_driver = {
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.probe = meson_drv_probe,
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.driver = {
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.name = "meson-drm",
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.of_match_table = dt_match,
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},
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};
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module_platform_driver(meson_drm_platform_driver);
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MODULE_AUTHOR("Jasper St. Pierre <jstpierre@mecheye.net>");
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MODULE_AUTHOR("Neil Armstrong <narmstrong@baylibre.com>");
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MODULE_DESCRIPTION(DRIVER_DESC);
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MODULE_LICENSE("GPL");
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