1 // SPDX-License-Identifier: GPL-2.0+
3  * Copyright (C) 2019-2022 Bootlin
41 	args->pitch = logicvc->config.row_stride * DIV_ROUND_UP(args->bpp, 8);  in logicvc_drm_gem_dma_dumb_create()
51 	.name				= "logicvc-drm",
54 	.major				= 1,
64 	.name		= "logicvc-drm",
74 	regmap_read(logicvc->regmap, LOGICVC_INT_STAT_REG, &stat);  in logicvc_drm_irq_handler()
77 	regmap_write(logicvc->regmap, LOGICVC_INT_STAT_REG, stat);  in logicvc_drm_irq_handler()
89 	struct drm_device *drm_dev = &logicvc->drm_dev;  in logicvc_drm_config_parse()
90 	struct device *dev = drm_dev->dev;  in logicvc_drm_config_parse()
91 	struct device_node *of_node = dev->of_node;  in logicvc_drm_config_parse()
92 	struct logicvc_drm_config *config = &logicvc->config;  in logicvc_drm_config_parse()
97 				       &config->dithering);  in logicvc_drm_config_parse()
100 				       &config->background_layer);  in logicvc_drm_config_parse()
103 				       &config->layers_configurable);  in logicvc_drm_config_parse()
107 					    &config->display_interface);  in logicvc_drm_config_parse()
113 					    &config->display_colorspace);  in logicvc_drm_config_parse()
119 					    &config->display_depth);  in logicvc_drm_config_parse()
125 					    &config->row_stride);  in logicvc_drm_config_parse()
131 		drm_err(drm_dev, "Missing non-optional layers node\n");  in logicvc_drm_config_parse()
132 		return -EINVAL;  in logicvc_drm_config_parse()
135 	config->layers_count = of_get_child_count(layers_node);  in logicvc_drm_config_parse()
136 	if (!config->layers_count) {  in logicvc_drm_config_parse()
138 			"Missing a non-optional layers children node\n");  in logicvc_drm_config_parse()
139 		return -EINVAL;  in logicvc_drm_config_parse()
147 	struct drm_device *drm_dev = &logicvc->drm_dev;  in logicvc_clocks_prepare()
148 	struct device *dev = drm_dev->dev;  in logicvc_clocks_prepare()
156 			.clk = &logicvc->vclk,  in logicvc_clocks_prepare()
161 			.clk = &logicvc->vclk2,  in logicvc_clocks_prepare()
166 			.clk = &logicvc->lvdsclk,  in logicvc_clocks_prepare()
171 			.clk = &logicvc->lvdsclkn,  in logicvc_clocks_prepare()
184 			if (PTR_ERR(clk) == -ENOENT && clocks_map[i].optional)  in logicvc_clocks_prepare()
187 			drm_err(drm_dev, "Missing non-optional clock %s\n",  in logicvc_clocks_prepare()
222 		&logicvc->vclk,  in logicvc_clocks_unprepare()
223 		&logicvc->vclk2,  in logicvc_clocks_unprepare()
224 		&logicvc->lvdsclk,  in logicvc_clocks_unprepare()
225 		&logicvc->lvdsclkn,  in logicvc_clocks_unprepare()
242 		.major		= 3,
246 		.major		= 4,
250 		.major		= 5,
258 	struct drm_device *drm_dev = &logicvc->drm_dev;  in logicvc_drm_caps_match()
260 	unsigned int major, minor;  in logicvc_drm_caps_match()  local
263 	u32 version;  in logicvc_drm_caps_match()  local
265 	regmap_read(logicvc->regmap, LOGICVC_IP_VERSION_REG, &version);  in logicvc_drm_caps_match()
267 	major = FIELD_GET(LOGICVC_IP_VERSION_MAJOR_MASK, version);  in logicvc_drm_caps_match()
268 	minor = FIELD_GET(LOGICVC_IP_VERSION_MINOR_MASK, version);  in logicvc_drm_caps_match()
269 	level = FIELD_GET(LOGICVC_IP_VERSION_LEVEL_MASK, version) + 'a';  in logicvc_drm_caps_match()
272 		if (logicvc_drm_caps[i].major &&  in logicvc_drm_caps_match()
273 		    logicvc_drm_caps[i].major != major)  in logicvc_drm_caps_match()
287 	drm_info(drm_dev, "LogiCVC version %d.%02d.%c\n", major, minor, level);  in logicvc_drm_caps_match()
294 	struct device_node *of_node = pdev->dev.of_node;  in logicvc_drm_probe()
299 	struct device *dev = &pdev->dev;  in logicvc_drm_probe()
309 	if (ret && ret != -ENODEV) {  in logicvc_drm_probe()
314 	reserved_mem_node = of_parse_phandle(of_node, "memory-region", 0);  in logicvc_drm_probe()
321 	if (of_node->parent)  in logicvc_drm_probe()
322 		regmap = syscon_node_to_regmap(of_node->parent);  in logicvc_drm_probe()
339 		logicvc_drm_regmap_config.max_register = resource_size(&res) -  in logicvc_drm_probe()
353 		ret = -ENODEV;  in logicvc_drm_probe()
365 	drm_dev = &logicvc->drm_dev;  in logicvc_drm_probe()
367 	logicvc->regmap = regmap;  in logicvc_drm_probe()
368 	INIT_LIST_HEAD(&logicvc->layers_list);  in logicvc_drm_probe()
372 		ret = -EINVAL;  in logicvc_drm_probe()
376 	logicvc->caps = caps;  in logicvc_drm_probe()
379 		logicvc->reserved_mem_base = reserved_mem->base;  in logicvc_drm_probe()
395 	if (ret && ret != -ENODEV) {  in logicvc_drm_probe()
422 		if (ret != -EPROBE_DEFER)  in logicvc_drm_probe()
442 	switch (drm_dev->mode_config.preferred_depth) {  in logicvc_drm_probe()
472 	struct device *dev = &pdev->dev;  in logicvc_drm_remove()
473 	struct drm_device *drm_dev = &logicvc->drm_dev;  in logicvc_drm_remove()
488 	struct drm_device *drm_dev = &logicvc->drm_dev;  in logicvc_drm_shutdown()
494 	{ .compatible = "xylon,logicvc-3.02.a-display" },
495 	{ .compatible = "xylon,logicvc-4.01.a-display" },
505 		.name		= "logicvc-drm",