// SPDX-License-Identifier: GPL-2.0+ /* * vsp1_drv.c -- R-Car VSP1 Driver * * Copyright (C) 2013-2015 Renesas Electronics Corporation * * Contact: Laurent Pinchart ([email protected]) */ #include <linux/clk.h> #include <linux/delay.h> #include <linux/device.h> #include <linux/interrupt.h> #include <linux/module.h> #include <linux/of.h> #include <linux/platform_device.h> #include <linux/pm_runtime.h> #include <linux/reset.h> #include <linux/videodev2.h> #include <media/rcar-fcp.h> #include <media/v4l2-subdev.h> #include "vsp1.h" #include "vsp1_brx.h" #include "vsp1_clu.h" #include "vsp1_dl.h" #include "vsp1_drm.h" #include "vsp1_hgo.h" #include "vsp1_hgt.h" #include "vsp1_hsit.h" #include "vsp1_lif.h" #include "vsp1_lut.h" #include "vsp1_pipe.h" #include "vsp1_rwpf.h" #include "vsp1_sru.h" #include "vsp1_uds.h" #include "vsp1_uif.h" #include "vsp1_video.h" /* ----------------------------------------------------------------------------- * Interrupt Handling */ static irqreturn_t vsp1_irq_handler(int irq, void *data) { … } /* ----------------------------------------------------------------------------- * Entities */ /* * vsp1_create_sink_links - Create links from all sources to the given sink * * This function creates media links from all valid sources to the given sink * pad. Links that would be invalid according to the VSP1 hardware capabilities * are skipped. Those include all links * * - from a UDS to a UDS (UDS entities can't be chained) * - from an entity to itself (no loops are allowed) * * Furthermore, the BRS can't be connected to histogram generators, but no * special check is currently needed as all VSP instances that include a BRS * have no histogram generator. */ static int vsp1_create_sink_links(struct vsp1_device *vsp1, struct vsp1_entity *sink) { … } static int vsp1_uapi_create_links(struct vsp1_device *vsp1) { … } static void vsp1_destroy_entities(struct vsp1_device *vsp1) { … } static int vsp1_create_entities(struct vsp1_device *vsp1) { … } int vsp1_reset_wpf(struct vsp1_device *vsp1, unsigned int index) { … } static int vsp1_device_init(struct vsp1_device *vsp1) { … } static void vsp1_mask_all_interrupts(struct vsp1_device *vsp1) { … } /* * vsp1_device_get - Acquire the VSP1 device * * Make sure the device is not suspended and initialize it if needed. * * Return 0 on success or a negative error code otherwise. */ int vsp1_device_get(struct vsp1_device *vsp1) { … } /* * vsp1_device_put - Release the VSP1 device * * Decrement the VSP1 reference count and cleanup the device if the last * reference is released. */ void vsp1_device_put(struct vsp1_device *vsp1) { … } /* ----------------------------------------------------------------------------- * Power Management */ static int __maybe_unused vsp1_pm_suspend(struct device *dev) { … } static int __maybe_unused vsp1_pm_resume(struct device *dev) { … } static int __maybe_unused vsp1_pm_runtime_suspend(struct device *dev) { … } static int __maybe_unused vsp1_pm_runtime_resume(struct device *dev) { … } static const struct dev_pm_ops vsp1_pm_ops = …; /* ----------------------------------------------------------------------------- * Platform Driver */ static const struct vsp1_device_info vsp1_device_infos[] = …; static const struct vsp1_device_info rzg2l_vsp2_device_info = …; static const struct vsp1_device_info *vsp1_lookup_info(struct vsp1_device *vsp1) { … } static int vsp1_probe(struct platform_device *pdev) { … } static void vsp1_remove(struct platform_device *pdev) { … } static const struct of_device_id vsp1_of_match[] = …; MODULE_DEVICE_TABLE(of, vsp1_of_match); static struct platform_driver vsp1_platform_driver = …; module_platform_driver(…) …; MODULE_ALIAS(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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