renesas/rcar-du/rcar_du_drv.c

1 // SPDX-License-Identifier: GPL-2.0+
3  * R-Car Display Unit DRM driver
5  * Copyright (C) 2013-2015 Renesas Electronics Corporation
11 #include <linux/dma-mapping.h>
32 /* -----------------------------------------------------------------------------
45 		 * R8A774[34] has one RGB output and one LVDS output
57 	.num_rpf = 4,
80 	.num_rpf = 4,
92 		 * R8A77470 has two RGB outputs, one LVDS output, and
108 	.num_rpf = 4,
121 		 * R8A774A1 has one RGB output, one LVDS output and one HDMI
152 		 * R8A774B1 has one RGB output, one LVDS output and one HDMI
181 		 * R8A774C0 has one RGB output and two LVDS outputs
197 	.num_rpf = 4,
211 		 * R8A774E1 has one RGB output, one LVDS output and one HDMI
263 		 * R8A7742 and R8A7790 each have one RGB output and two LVDS
281 	.num_rpf = 4,
284 /* M2-W (r8a7791) and M2-N (r8a7793) are identical */
294 		 * R8A779[13] has one RGB output, one LVDS output and one
307 	.num_rpf = 4,
328 	.num_rpf = 4,
352 	.num_rpf = 4,
366 		 * LVDS output.
400 		 * R8A7796 has one RGB output, one LVDS output and one HDMI
431 		 * R8A77965 has one RGB output, one LVDS output and one HDMI
462 		 * R8A77970 and R8A77980 have one RGB output and one LVDS
486 		 * R8A77990 and R8A77995 have one RGB output and two LVDS
508 	.gen = 4,
529 	.gen = 4,
550 	.gen = 4,
567 	{ .compatible = "renesas,du-r8a7742", .data = &rcar_du_r8a7790_info },
568 	{ .compatible = "renesas,du-r8a7743", .data = &rzg1_du_r8a7743_info },
569 	{ .compatible = "renesas,du-r8a7744", .data = &rzg1_du_r8a7743_info },
570 	{ .compatible = "renesas,du-r8a7745", .data = &rzg1_du_r8a7745_info },
571 	{ .compatible = "renesas,du-r8a77470", .data = &rzg1_du_r8a77470_info },
572 	{ .compatible = "renesas,du-r8a774a1", .data = &rcar_du_r8a774a1_info },
573 	{ .compatible = "renesas,du-r8a774b1", .data = &rcar_du_r8a774b1_info },
574 	{ .compatible = "renesas,du-r8a774c0", .data = &rcar_du_r8a774c0_info },
575 	{ .compatible = "renesas,du-r8a774e1", .data = &rcar_du_r8a774e1_info },
576 	{ .compatible = "renesas,du-r8a7779", .data = &rcar_du_r8a7779_info },
577 	{ .compatible = "renesas,du-r8a7790", .data = &rcar_du_r8a7790_info },
578 	{ .compatible = "renesas,du-r8a7791", .data = &rcar_du_r8a7791_info },
579 	{ .compatible = "renesas,du-r8a7792", .data = &rcar_du_r8a7792_info },
580 	{ .compatible = "renesas,du-r8a7793", .data = &rcar_du_r8a7791_info },
581 	{ .compatible = "renesas,du-r8a7794", .data = &rcar_du_r8a7794_info },
582 	{ .compatible = "renesas,du-r8a7795", .data = &rcar_du_r8a7795_info },
583 	{ .compatible = "renesas,du-r8a7796", .data = &rcar_du_r8a7796_info },
584 	{ .compatible = "renesas,du-r8a77961", .data = &rcar_du_r8a7796_info },
585 	{ .compatible = "renesas,du-r8a77965", .data = &rcar_du_r8a77965_info },
586 	{ .compatible = "renesas,du-r8a77970", .data = &rcar_du_r8a77970_info },
587 	{ .compatible = "renesas,du-r8a77980", .data = &rcar_du_r8a77970_info },
588 	{ .compatible = "renesas,du-r8a77990", .data = &rcar_du_r8a7799x_info },
589 	{ .compatible = "renesas,du-r8a77995", .data = &rcar_du_r8a7799x_info },
590 	{ .compatible = "renesas,du-r8a779a0", .data = &rcar_du_r8a779a0_info },
591 	{ .compatible = "renesas,du-r8a779g0", .data = &rcar_du_r8a779g0_info },
592 	{ .compatible = "renesas,du-r8a779h0", .data = &rcar_du_r8a779h0_info },
618 /* -----------------------------------------------------------------------------
630 	.name			= "rcar-du",
631 	.desc			= "Renesas R-Car Display Unit",
636 /* -----------------------------------------------------------------------------
644 	return drm_mode_config_helper_suspend(&rcdu->ddev);  in rcar_du_pm_suspend()
651 	return drm_mode_config_helper_resume(&rcdu->ddev);  in rcar_du_pm_resume()
657 /* -----------------------------------------------------------------------------
664 	struct drm_device *ddev = &rcdu->ddev;  in rcar_du_remove()
676 	drm_atomic_helper_shutdown(&rcdu->ddev);  in rcar_du_shutdown()
686 		return -ENODEV;  in rcar_du_probe()
688 	/* Allocate and initialize the R-Car device structure. */  in rcar_du_probe()
689 	rcdu = devm_drm_dev_alloc(&pdev->dev, &rcar_du_driver,  in rcar_du_probe()
694 	rcdu->dev = &pdev->dev;  in rcar_du_probe()
696 	rcdu->info = of_device_get_match_data(rcdu->dev);  in rcar_du_probe()
701 	rcdu->mmio = devm_platform_ioremap_resource(pdev, 0);  in rcar_du_probe()
702 	if (IS_ERR(rcdu->mmio))  in rcar_du_probe()
703 		return PTR_ERR(rcdu->mmio);  in rcar_du_probe()
706 	 * Set the DMA coherent mask to reflect the DU 32-bit DMA address space  in rcar_du_probe()
708 	 * any memory access so set the mask to 40 bits to accept all buffers.  in rcar_du_probe()
711 	ret = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(mask));  in rcar_du_probe()
722 		if (ret != -EPROBE_DEFER)  in rcar_du_probe()
723 			dev_err(&pdev->dev,  in rcar_du_probe()
732 	ret = drm_dev_register(&rcdu->ddev, 0);  in rcar_du_probe()
736 	drm_info(&rcdu->ddev, "Device %s probed\n", dev_name(&pdev->dev));  in rcar_du_probe()
738 	drm_client_setup(&rcdu->ddev, NULL);  in rcar_du_probe()
743 	drm_kms_helper_poll_fini(&rcdu->ddev);  in rcar_du_probe()
752 		.name	= "rcar-du",
761 MODULE_DESCRIPTION("Renesas R-Car Display Unit DRM Driver");