3  * Microchip Image Sensor Controller (ISC) driver
13  * ISC video pipeline integrates the following submodules:
49 #include "microchip-isc-regs.h"
50 #include "microchip-isc.h"
59 /* This is a list of the formats that the ISC can *output* */
120 /* This is a list of formats that the ISC can receive as *input* */
217 static void isc_sama5d2_config_csc(struct isc_device *isc)  in isc_sama5d2_config_csc()  argument
219 	struct regmap *regmap = isc->regmap;  in isc_sama5d2_config_csc()
222 	regmap_write(regmap, ISC_CSC_YR_YG + isc->offsets.csc,  in isc_sama5d2_config_csc()
224 	regmap_write(regmap, ISC_CSC_YB_OY + isc->offsets.csc,  in isc_sama5d2_config_csc()
226 	regmap_write(regmap, ISC_CSC_CBR_CBG + isc->offsets.csc,  in isc_sama5d2_config_csc()
228 	regmap_write(regmap, ISC_CSC_CBB_OCB + isc->offsets.csc,  in isc_sama5d2_config_csc()
230 	regmap_write(regmap, ISC_CSC_CRR_CRG + isc->offsets.csc,  in isc_sama5d2_config_csc()
232 	regmap_write(regmap, ISC_CSC_CRB_OCR + isc->offsets.csc,  in isc_sama5d2_config_csc()
236 static void isc_sama5d2_config_cbc(struct isc_device *isc)  in isc_sama5d2_config_cbc()  argument
238 	struct regmap *regmap = isc->regmap;  in isc_sama5d2_config_cbc()
240 	regmap_write(regmap, ISC_CBC_BRIGHT + isc->offsets.cbc,  in isc_sama5d2_config_cbc()
241 		     isc->ctrls.brightness);  in isc_sama5d2_config_cbc()
242 	regmap_write(regmap, ISC_CBC_CONTRAST + isc->offsets.cbc,  in isc_sama5d2_config_cbc()
243 		     isc->ctrls.contrast);  in isc_sama5d2_config_cbc()
246 static void isc_sama5d2_config_cc(struct isc_device *isc)  in isc_sama5d2_config_cc()  argument
248 	struct regmap *regmap = isc->regmap;  in isc_sama5d2_config_cc()
259 static void isc_sama5d2_config_ctrls(struct isc_device *isc,  in isc_sama5d2_config_ctrls()  argument
262 	struct isc_ctrls *ctrls = &isc->ctrls;  in isc_sama5d2_config_ctrls()
270 static void isc_sama5d2_config_dpc(struct isc_device *isc)  in isc_sama5d2_config_dpc()  argument
275 static void isc_sama5d2_config_gam(struct isc_device *isc)  in isc_sama5d2_config_gam()  argument
280 static void isc_sama5d2_config_rlp(struct isc_device *isc)  in isc_sama5d2_config_rlp()  argument
282 	struct regmap *regmap = isc->regmap;  in isc_sama5d2_config_rlp()
283 	u32 rlp_mode = isc->config.rlp_cfg_mode;  in isc_sama5d2_config_rlp()
302 	regmap_update_bits(regmap, ISC_RLP_CFG + isc->offsets.rlp,  in isc_sama5d2_config_rlp()
306 static void isc_sama5d2_adapt_pipeline(struct isc_device *isc)  in isc_sama5d2_adapt_pipeline()  argument
308 	isc->try_config.bits_pipeline &= ISC_SAMA5D2_PIPELINE;  in isc_sama5d2_adapt_pipeline()
353 static int isc_parse_dt(struct device *dev, struct isc_device *isc)  in isc_parse_dt()  argument
360 	INIT_LIST_HEAD(&isc->subdev_entities);  in isc_parse_dt()
397 		list_add_tail(&subdev_entity->list, &isc->subdev_entities);  in isc_parse_dt()
406 	struct isc_device *isc;  in microchip_isc_probe()  local
413 	isc = devm_kzalloc(dev, sizeof(*isc), GFP_KERNEL);  in microchip_isc_probe()
414 	if (!isc)  in microchip_isc_probe()
417 	platform_set_drvdata(pdev, isc);  in microchip_isc_probe()
418 	isc->dev = dev;  in microchip_isc_probe()
424 	isc->regmap = devm_regmap_init_mmio(dev, io_base, &microchip_isc_regmap_config);  in microchip_isc_probe()
425 	if (IS_ERR(isc->regmap)) {  in microchip_isc_probe()
426 		ret = PTR_ERR(isc->regmap);  in microchip_isc_probe()
436 			       "microchip-sama5d2-isc", isc);  in microchip_isc_probe()
443 	isc->gamma_table = isc_sama5d2_gamma_table;  in microchip_isc_probe()
444 	isc->gamma_max = 2;  in microchip_isc_probe()
446 	isc->max_width = ISC_SAMA5D2_MAX_SUPPORT_WIDTH;  in microchip_isc_probe()
447 	isc->max_height = ISC_SAMA5D2_MAX_SUPPORT_HEIGHT;  in microchip_isc_probe()
449 	isc->config_dpc = isc_sama5d2_config_dpc;  in microchip_isc_probe()
450 	isc->config_csc = isc_sama5d2_config_csc;  in microchip_isc_probe()
451 	isc->config_cbc = isc_sama5d2_config_cbc;  in microchip_isc_probe()
452 	isc->config_cc = isc_sama5d2_config_cc;  in microchip_isc_probe()
453 	isc->config_gam = isc_sama5d2_config_gam;  in microchip_isc_probe()
454 	isc->config_rlp = isc_sama5d2_config_rlp;  in microchip_isc_probe()
455 	isc->config_ctrls = isc_sama5d2_config_ctrls;  in microchip_isc_probe()
457 	isc->adapt_pipeline = isc_sama5d2_adapt_pipeline;  in microchip_isc_probe()
459 	isc->offsets.csc = ISC_SAMA5D2_CSC_OFFSET;  in microchip_isc_probe()
460 	isc->offsets.cbc = ISC_SAMA5D2_CBC_OFFSET;  in microchip_isc_probe()
461 	isc->offsets.sub422 = ISC_SAMA5D2_SUB422_OFFSET;  in microchip_isc_probe()
462 	isc->offsets.sub420 = ISC_SAMA5D2_SUB420_OFFSET;  in microchip_isc_probe()
463 	isc->offsets.rlp = ISC_SAMA5D2_RLP_OFFSET;  in microchip_isc_probe()
464 	isc->offsets.his = ISC_SAMA5D2_HIS_OFFSET;  in microchip_isc_probe()
465 	isc->offsets.dma = ISC_SAMA5D2_DMA_OFFSET;  in microchip_isc_probe()
466 	isc->offsets.version = ISC_SAMA5D2_VERSION_OFFSET;  in microchip_isc_probe()
467 	isc->offsets.his_entry = ISC_SAMA5D2_HIS_ENTRY_OFFSET;  in microchip_isc_probe()
469 	isc->controller_formats = sama5d2_controller_formats;  in microchip_isc_probe()
470 	isc->controller_formats_size = ARRAY_SIZE(sama5d2_controller_formats);  in microchip_isc_probe()
471 	isc->formats_list = sama5d2_formats_list;  in microchip_isc_probe()
472 	isc->formats_list_size = ARRAY_SIZE(sama5d2_formats_list);  in microchip_isc_probe()
474 	/* sama5d2-isc - 8 bits per beat */  in microchip_isc_probe()
475 	isc->dcfg = ISC_DCFG_YMBSIZE_BEATS8 | ISC_DCFG_CMBSIZE_BEATS8;  in microchip_isc_probe()
477 	/* sama5d2-isc : ISPCK is required and mandatory */  in microchip_isc_probe()
478 	isc->ispck_required = true;  in microchip_isc_probe()
480 	ret = microchip_isc_pipeline_init(isc);  in microchip_isc_probe()
484 	isc->hclock = devm_clk_get(dev, "hclock");  in microchip_isc_probe()
485 	if (IS_ERR(isc->hclock)) {  in microchip_isc_probe()
486 		ret = PTR_ERR(isc->hclock);  in microchip_isc_probe()
491 	ret = clk_prepare_enable(isc->hclock);  in microchip_isc_probe()
497 	ret = microchip_isc_clk_init(isc);  in microchip_isc_probe()
499 		dev_err(dev, "failed to init isc clock: %d\n", ret);  in microchip_isc_probe()
502 	ret = v4l2_device_register(dev, &isc->v4l2_dev);  in microchip_isc_probe()
508 	ret = isc_parse_dt(dev, isc);  in microchip_isc_probe()
514 	if (list_empty(&isc->subdev_entities)) {  in microchip_isc_probe()
520 	list_for_each_entry(subdev_entity, &isc->subdev_entities, list) {  in microchip_isc_probe()
525 		v4l2_async_nf_init(&subdev_entity->notifier, &isc->v4l2_dev);  in microchip_isc_probe()
547 		if (video_is_registered(&isc->video_dev))  in microchip_isc_probe()
551 	regmap_read(isc->regmap, ISC_VERSION + isc->offsets.version, &ver);  in microchip_isc_probe()
553 	ret = isc_mc_init(isc, ver);  in microchip_isc_probe()
561 	isc->ispck = isc->isc_clks[ISC_ISPCK].clk;  in microchip_isc_probe()
563 	ret = clk_prepare_enable(isc->ispck);  in microchip_isc_probe()
570 	ret = clk_set_rate(isc->ispck, clk_get_rate(isc->hclock));  in microchip_isc_probe()
576 	dev_info(dev, "Microchip ISC version %x\n", ver);  in microchip_isc_probe()
581 	clk_disable_unprepare(isc->ispck);  in microchip_isc_probe()
587 	isc_mc_cleanup(isc);  in microchip_isc_probe()
590 	microchip_isc_subdev_cleanup(isc);  in microchip_isc_probe()
593 	v4l2_device_unregister(&isc->v4l2_dev);  in microchip_isc_probe()
596 	clk_disable_unprepare(isc->hclock);  in microchip_isc_probe()
598 	microchip_isc_clk_cleanup(isc);  in microchip_isc_probe()
605 	struct isc_device *isc = platform_get_drvdata(pdev);  in microchip_isc_remove()  local
609 	isc_mc_cleanup(isc);  in microchip_isc_remove()
611 	microchip_isc_subdev_cleanup(isc);  in microchip_isc_remove()
613 	v4l2_device_unregister(&isc->v4l2_dev);  in microchip_isc_remove()
615 	clk_disable_unprepare(isc->ispck);  in microchip_isc_remove()
616 	clk_disable_unprepare(isc->hclock);  in microchip_isc_remove()
618 	microchip_isc_clk_cleanup(isc);  in microchip_isc_remove()
623 	struct isc_device *isc = dev_get_drvdata(dev);  in isc_runtime_suspend()  local
625 	clk_disable_unprepare(isc->ispck);  in isc_runtime_suspend()
626 	clk_disable_unprepare(isc->hclock);  in isc_runtime_suspend()
633 	struct isc_device *isc = dev_get_drvdata(dev);  in isc_runtime_resume()  local
636 	ret = clk_prepare_enable(isc->hclock);  in isc_runtime_resume()
640 	ret = clk_prepare_enable(isc->ispck);  in isc_runtime_resume()
642 		clk_disable_unprepare(isc->hclock);  in isc_runtime_resume()
653 	{ .compatible = "atmel,sama5d2-isc" },
663 		.name		= "microchip-sama5d2-isc",
672 MODULE_DESCRIPTION("The V4L2 driver for Microchip-ISC");