Adding upstream version 6.6.15.upstream/6.6.15

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

1 files changed, 263 insertions, 0 deletions

diff --git a/drivers/media/platform/amphion/vpu_drv.c b/drivers/media/platform/amphion/vpu_drv.c
new file mode 100644
index 0000000000..2bf70aafd2
--- /dev/null
+++ b/drivers/media/platform/amphion/vpu_drv.c
@@ -0,0 +1,263 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2020-2021 NXP
+ */
+
+#include <linux/init.h>
+#include <linux/interconnect.h>
+#include <linux/ioctl.h>
+#include <linux/list.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/dma-map-ops.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/pm_runtime.h>
+#include <linux/videodev2.h>
+#include <linux/of_reserved_mem.h>
+#include <media/v4l2-device.h>
+#include <media/videobuf2-v4l2.h>
+#include <media/v4l2-mem2mem.h>
+#include <media/v4l2-ioctl.h>
+#include <linux/debugfs.h>
+#include "vpu.h"
+#include "vpu_imx8q.h"
+
+bool debug;
+module_param(debug, bool, 0644);
+
+void vpu_writel(struct vpu_dev *vpu, u32 reg, u32 val)
+{
+	writel(val, vpu->base + reg);
+}
+
+u32 vpu_readl(struct vpu_dev *vpu, u32 reg)
+{
+	return readl(vpu->base + reg);
+}
+
+static void vpu_dev_get(struct vpu_dev *vpu)
+{
+	if (atomic_inc_return(&vpu->ref_vpu) == 1 && vpu->res->setup)
+		vpu->res->setup(vpu);
+}
+
+static void vpu_dev_put(struct vpu_dev *vpu)
+{
+	atomic_dec(&vpu->ref_vpu);
+}
+
+static void vpu_enc_get(struct vpu_dev *vpu)
+{
+	if (atomic_inc_return(&vpu->ref_enc) == 1 && vpu->res->setup_encoder)
+		vpu->res->setup_encoder(vpu);
+}
+
+static void vpu_enc_put(struct vpu_dev *vpu)
+{
+	atomic_dec(&vpu->ref_enc);
+}
+
+static void vpu_dec_get(struct vpu_dev *vpu)
+{
+	if (atomic_inc_return(&vpu->ref_dec) == 1 && vpu->res->setup_decoder)
+		vpu->res->setup_decoder(vpu);
+}
+
+static void vpu_dec_put(struct vpu_dev *vpu)
+{
+	atomic_dec(&vpu->ref_dec);
+}
+
+static int vpu_init_media_device(struct vpu_dev *vpu)
+{
+	vpu->mdev.dev = vpu->dev;
+	strscpy(vpu->mdev.model, "amphion-vpu", sizeof(vpu->mdev.model));
+	strscpy(vpu->mdev.bus_info, "platform: amphion-vpu", sizeof(vpu->mdev.bus_info));
+	media_device_init(&vpu->mdev);
+	vpu->v4l2_dev.mdev = &vpu->mdev;
+
+	return 0;
+}
+
+static int vpu_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct vpu_dev *vpu;
+	int ret;
+
+	dev_dbg(dev, "probe\n");
+	vpu = devm_kzalloc(dev, sizeof(*vpu), GFP_KERNEL);
+	if (!vpu)
+		return -ENOMEM;
+
+	vpu->pdev = pdev;
+	vpu->dev = dev;
+	mutex_init(&vpu->lock);
+	INIT_LIST_HEAD(&vpu->cores);
+	platform_set_drvdata(pdev, vpu);
+	atomic_set(&vpu->ref_vpu, 0);
+	atomic_set(&vpu->ref_enc, 0);
+	atomic_set(&vpu->ref_dec, 0);
+	vpu->get_vpu = vpu_dev_get;
+	vpu->put_vpu = vpu_dev_put;
+	vpu->get_enc = vpu_enc_get;
+	vpu->put_enc = vpu_enc_put;
+	vpu->get_dec = vpu_dec_get;
+	vpu->put_dec = vpu_dec_put;
+
+	vpu->base = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(vpu->base))
+		return PTR_ERR(vpu->base);
+
+	vpu->res = of_device_get_match_data(dev);
+	if (!vpu->res)
+		return -ENODEV;
+
+	pm_runtime_enable(dev);
+
+	ret = v4l2_device_register(dev, &vpu->v4l2_dev);
+	if (ret)
+		goto err_vpu_deinit;
+
+	vpu_init_media_device(vpu);
+	vpu->encoder.type = VPU_CORE_TYPE_ENC;
+	vpu->encoder.function = MEDIA_ENT_F_PROC_VIDEO_ENCODER;
+	vpu->decoder.type = VPU_CORE_TYPE_DEC;
+	vpu->decoder.function = MEDIA_ENT_F_PROC_VIDEO_DECODER;
+	ret = vpu_add_func(vpu, &vpu->decoder);
+	if (ret)
+		goto err_add_decoder;
+	ret = vpu_add_func(vpu, &vpu->encoder);
+	if (ret)
+		goto err_add_encoder;
+	ret = media_device_register(&vpu->mdev);
+	if (ret)
+		goto err_vpu_media;
+	vpu->debugfs = debugfs_create_dir("amphion_vpu", NULL);
+
+	of_platform_populate(dev->of_node, NULL, NULL, dev);
+
+	return 0;
+
+err_vpu_media:
+	vpu_remove_func(&vpu->encoder);
+err_add_encoder:
+	vpu_remove_func(&vpu->decoder);
+err_add_decoder:
+	media_device_cleanup(&vpu->mdev);
+	v4l2_device_unregister(&vpu->v4l2_dev);
+err_vpu_deinit:
+	pm_runtime_set_suspended(dev);
+	pm_runtime_disable(dev);
+
+	return ret;
+}
+
+static void vpu_remove(struct platform_device *pdev)
+{
+	struct vpu_dev *vpu = platform_get_drvdata(pdev);
+	struct device *dev = &pdev->dev;
+
+	debugfs_remove_recursive(vpu->debugfs);
+	vpu->debugfs = NULL;
+
+	pm_runtime_disable(dev);
+
+	media_device_unregister(&vpu->mdev);
+	vpu_remove_func(&vpu->decoder);
+	vpu_remove_func(&vpu->encoder);
+	media_device_cleanup(&vpu->mdev);
+	v4l2_device_unregister(&vpu->v4l2_dev);
+	mutex_destroy(&vpu->lock);
+}
+
+static int __maybe_unused vpu_runtime_resume(struct device *dev)
+{
+	return 0;
+}
+
+static int __maybe_unused vpu_runtime_suspend(struct device *dev)
+{
+	return 0;
+}
+
+static int __maybe_unused vpu_resume(struct device *dev)
+{
+	return 0;
+}
+
+static int __maybe_unused vpu_suspend(struct device *dev)
+{
+	return 0;
+}
+
+static const struct dev_pm_ops vpu_pm_ops = {
+	SET_RUNTIME_PM_OPS(vpu_runtime_suspend, vpu_runtime_resume, NULL)
+	SET_SYSTEM_SLEEP_PM_OPS(vpu_suspend, vpu_resume)
+};
+
+static struct vpu_resources imx8qxp_res = {
+	.plat_type = IMX8QXP,
+	.mreg_base = 0x40000000,
+	.setup = vpu_imx8q_setup,
+	.setup_encoder = vpu_imx8q_setup_enc,
+	.setup_decoder = vpu_imx8q_setup_dec,
+	.reset = vpu_imx8q_reset
+};
+
+static struct vpu_resources imx8qm_res = {
+	.plat_type = IMX8QM,
+	.mreg_base = 0x40000000,
+	.setup = vpu_imx8q_setup,
+	.setup_encoder = vpu_imx8q_setup_enc,
+	.setup_decoder = vpu_imx8q_setup_dec,
+	.reset = vpu_imx8q_reset
+};
+
+static const struct of_device_id vpu_dt_match[] = {
+	{ .compatible = "nxp,imx8qxp-vpu", .data = &imx8qxp_res },
+	{ .compatible = "nxp,imx8qm-vpu", .data = &imx8qm_res },
+	{}
+};
+MODULE_DEVICE_TABLE(of, vpu_dt_match);
+
+static struct platform_driver amphion_vpu_driver = {
+	.probe = vpu_probe,
+	.remove_new = vpu_remove,
+	.driver = {
+		.name = "amphion-vpu",
+		.of_match_table = vpu_dt_match,
+		.pm = &vpu_pm_ops,
+	},
+};
+
+static int __init vpu_driver_init(void)
+{
+	int ret;
+
+	ret = platform_driver_register(&amphion_vpu_driver);
+	if (ret)
+		return ret;
+
+	ret = vpu_core_driver_init();
+	if (ret)
+		platform_driver_unregister(&amphion_vpu_driver);
+
+	return ret;
+}
+
+static void __exit vpu_driver_exit(void)
+{
+	vpu_core_driver_exit();
+	platform_driver_unregister(&amphion_vpu_driver);
+}
+module_init(vpu_driver_init);
+module_exit(vpu_driver_exit);
+
+MODULE_AUTHOR("Freescale Semiconductor, Inc.");
+MODULE_DESCRIPTION("Linux VPU driver for Freescale i.MX8Q");
+MODULE_LICENSE("GPL v2");