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/imx/dcss/dcss-drv.c | 128 ++++++++++++++++++++++++++++++++++++ 1 file changed, 128 insertions(+) create mode 100644 drivers/gpu/drm/imx/dcss/dcss-drv.c (limited to 'drivers/gpu/drm/imx/dcss/dcss-drv.c') diff --git a/drivers/gpu/drm/imx/dcss/dcss-drv.c b/drivers/gpu/drm/imx/dcss/dcss-drv.c new file mode 100644 index 0000000000..c68b0d93ae --- /dev/null +++ b/drivers/gpu/drm/imx/dcss/dcss-drv.c @@ -0,0 +1,128 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright 2019 NXP. + */ + +#include +#include +#include +#include +#include +#include + +#include "dcss-dev.h" +#include "dcss-kms.h" + +struct dcss_drv { + struct dcss_dev *dcss; + struct dcss_kms_dev *kms; +}; + +struct dcss_dev *dcss_drv_dev_to_dcss(struct device *dev) +{ + struct dcss_drv *mdrv = dev_get_drvdata(dev); + + return mdrv ? mdrv->dcss : NULL; +} + +struct drm_device *dcss_drv_dev_to_drm(struct device *dev) +{ + struct dcss_drv *mdrv = dev_get_drvdata(dev); + + return mdrv ? &mdrv->kms->base : NULL; +} + +static int dcss_drv_platform_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct device_node *remote; + struct dcss_drv *mdrv; + int err = 0; + bool hdmi_output = true; + + if (!dev->of_node) + return -ENODEV; + + remote = of_graph_get_remote_node(dev->of_node, 0, 0); + if (!remote) + return -ENODEV; + + hdmi_output = !of_device_is_compatible(remote, "fsl,imx8mq-nwl-dsi"); + + of_node_put(remote); + + mdrv = kzalloc(sizeof(*mdrv), GFP_KERNEL); + if (!mdrv) + return -ENOMEM; + + mdrv->dcss = dcss_dev_create(dev, hdmi_output); + if (IS_ERR(mdrv->dcss)) { + err = PTR_ERR(mdrv->dcss); + goto err; + } + + dev_set_drvdata(dev, mdrv); + + mdrv->kms = dcss_kms_attach(mdrv->dcss); + if (IS_ERR(mdrv->kms)) { + err = PTR_ERR(mdrv->kms); + dev_err_probe(dev, err, "Failed to initialize KMS\n"); + goto dcss_shutoff; + } + + return 0; + +dcss_shutoff: + dcss_dev_destroy(mdrv->dcss); + +err: + kfree(mdrv); + return err; +} + +static int dcss_drv_platform_remove(struct platform_device *pdev) +{ + struct dcss_drv *mdrv = dev_get_drvdata(&pdev->dev); + + dcss_kms_detach(mdrv->kms); + dcss_dev_destroy(mdrv->dcss); + + kfree(mdrv); + + return 0; +} + +static struct dcss_type_data dcss_types[] = { + [DCSS_IMX8MQ] = { + .name = "DCSS_IMX8MQ", + .blkctl_ofs = 0x2F000, + .ctxld_ofs = 0x23000, + .dtg_ofs = 0x20000, + .scaler_ofs = 0x1C000, + .ss_ofs = 0x1B000, + .dpr_ofs = 0x18000, + }, +}; + +static const struct of_device_id dcss_of_match[] = { + { .compatible = "nxp,imx8mq-dcss", .data = &dcss_types[DCSS_IMX8MQ], }, + {}, +}; + +MODULE_DEVICE_TABLE(of, dcss_of_match); + +static struct platform_driver dcss_platform_driver = { + .probe = dcss_drv_platform_probe, + .remove = dcss_drv_platform_remove, + .driver = { + .name = "imx-dcss", + .of_match_table = dcss_of_match, + .pm = pm_ptr(&dcss_dev_pm_ops), + }, +}; + +drm_module_platform_driver(dcss_platform_driver); + +MODULE_AUTHOR("Laurentiu Palcu "); +MODULE_DESCRIPTION("DCSS driver for i.MX8MQ"); +MODULE_LICENSE("GPL v2"); -- cgit v1.2.3