1 // SPDX-License-Identifier: GPL-2.0-only
24 #include <linux/clk.h>
56 /* only used in non-DT mode */
156 	if (ctx->pck_min >= 100000000) {  in dpi_calc_dispc_cb()
164 	ctx->dispc_cinfo.lck_div = lckd;  in dpi_calc_dispc_cb()
165 	ctx->dispc_cinfo.pck_div = pckd;  in dpi_calc_dispc_cb()
166 	ctx->dispc_cinfo.lck = lck;  in dpi_calc_dispc_cb()
167 	ctx->dispc_cinfo.pck = pck;  in dpi_calc_dispc_cb()
183 	if (m_dispc > 1 && m_dispc % 2 != 0 && ctx->pck_min >= 100000000)  in dpi_calc_hsdiv_cb()
186 	ctx->dsi_cinfo.mX[HSDIV_DISPC] = m_dispc;  in dpi_calc_hsdiv_cb()
187 	ctx->dsi_cinfo.clkout[HSDIV_DISPC] = dispc;  in dpi_calc_hsdiv_cb()
189 	return dispc_div_calc(dispc, ctx->pck_min, ctx->pck_max,  in dpi_calc_hsdiv_cb()
200 	ctx->dsi_cinfo.n = n;  in dpi_calc_pll_cb()
201 	ctx->dsi_cinfo.m = m;  in dpi_calc_pll_cb()
202 	ctx->dsi_cinfo.fint = fint;  in dpi_calc_pll_cb()
203 	ctx->dsi_cinfo.clkdco = clkdco;  in dpi_calc_pll_cb()
205 	return dss_pll_hsdiv_calc(ctx->pll, clkdco,  in dpi_calc_pll_cb()
206 		ctx->pck_min, dss_feat_get_param_max(FEAT_PARAM_DSS_FCK),  in dpi_calc_pll_cb()
214 	ctx->fck = fck;  in dpi_calc_dss_cb()
216 	return dispc_div_calc(fck, ctx->pck_min, ctx->pck_max,  in dpi_calc_dss_cb()
227 	ctx->pll = dpi->pll;  in dpi_dsi_clk_calc()
228 	ctx->pck_min = pck - 1000;  in dpi_dsi_clk_calc()
229 	ctx->pck_max = pck + 1000;  in dpi_dsi_clk_calc()
234 	clkin = clk_get_rate(ctx->pll->clkin);  in dpi_dsi_clk_calc()
236 	return dss_pll_calc(ctx->pll, clkin,  in dpi_dsi_clk_calc()
249 	 * +/- ~15MHz.  in dpi_dss_clk_calc()
257 			ctx->pck_min = max(pck - 1000 * i * i * i, 0lu);  in dpi_dss_clk_calc()
259 			ctx->pck_min = 0;  in dpi_dss_clk_calc()
260 		ctx->pck_max = pck + 1000 * i * i * i;  in dpi_dss_clk_calc()
262 		ok = dss_div_calc(pck, ctx->pck_min, dpi_calc_dss_cb, ctx);  in dpi_dss_clk_calc()
282 		return -EINVAL;  in dpi_set_dsi_clk()
284 	r = dss_pll_set_config(dpi->pll, &ctx.dsi_cinfo);  in dpi_set_dsi_clk()
291 	dpi->mgr_config.clock_info = ctx.dispc_cinfo;  in dpi_set_dsi_clk()
309 		return -EINVAL;  in dpi_set_dispc_clk()
315 	dpi->mgr_config.clock_info = ctx.dispc_cinfo;  in dpi_set_dispc_clk()
326 	struct omap_dss_device *out = &dpi->output;  in dpi_set_mode()
327 	struct omap_overlay_manager *mgr = out->manager;  in dpi_set_mode()  local
328 	struct omap_video_timings *t = &dpi->timings;  in dpi_set_mode()
334 	if (dpi->pll)  in dpi_set_mode()
335 		r = dpi_set_dsi_clk(dpi, mgr->id, t->pixelclock, &fck,  in dpi_set_mode()
338 		r = dpi_set_dispc_clk(dpi, t->pixelclock, &fck,  in dpi_set_mode()
345 	if (pck != t->pixelclock) {  in dpi_set_mode()
347 			t->pixelclock, pck);  in dpi_set_mode()
349 		t->pixelclock = pck;  in dpi_set_mode()
352 	dss_mgr_set_timings(mgr, t);  in dpi_set_mode()
359 	struct omap_dss_device *out = &dpi->output;  in dpi_config_lcd_manager()
360 	struct omap_overlay_manager *mgr = out->manager;  in dpi_config_lcd_manager()  local
362 	dpi->mgr_config.io_pad_mode = DSS_IO_PAD_MODE_BYPASS;  in dpi_config_lcd_manager()
364 	dpi->mgr_config.stallmode = false;  in dpi_config_lcd_manager()
365 	dpi->mgr_config.fifohandcheck = false;  in dpi_config_lcd_manager()
367 	dpi->mgr_config.video_port_width = dpi->data_lines;  in dpi_config_lcd_manager()
369 	dpi->mgr_config.lcden_sig_polarity = 0;  in dpi_config_lcd_manager()
371 	dss_mgr_set_lcd_config(mgr, &dpi->mgr_config);  in dpi_config_lcd_manager()
377 	struct omap_dss_device *out = &dpi->output;  in dpi_display_enable()
380 	mutex_lock(&dpi->lock);  in dpi_display_enable()
382 	if (dss_has_feature(FEAT_DPI_USES_VDDS_DSI) && !dpi->vdds_dsi_reg) {  in dpi_display_enable()
384 		r = -ENODEV;  in dpi_display_enable()
388 	if (out->manager == NULL) {  in dpi_display_enable()
390 		r = -ENODEV;  in dpi_display_enable()
395 		r = regulator_enable(dpi->vdds_dsi_reg);  in dpi_display_enable()
404 	r = dss_dpi_select_source(out->port_num, out->manager->id);  in dpi_display_enable()
408 	if (dpi->pll) {  in dpi_display_enable()
409 		r = dss_pll_enable(dpi->pll);  in dpi_display_enable()
422 	r = dss_mgr_enable(out->manager);  in dpi_display_enable()
426 	mutex_unlock(&dpi->lock);  in dpi_display_enable()
432 	if (dpi->pll)  in dpi_display_enable()
433 		dss_pll_disable(dpi->pll);  in dpi_display_enable()
439 		regulator_disable(dpi->vdds_dsi_reg);  in dpi_display_enable()
443 	mutex_unlock(&dpi->lock);  in dpi_display_enable()
450 	struct omap_overlay_manager *mgr = dpi->output.manager;  in dpi_display_disable()  local
452 	mutex_lock(&dpi->lock);  in dpi_display_disable()
454 	dss_mgr_disable(mgr);  in dpi_display_disable()
456 	if (dpi->pll) {  in dpi_display_disable()
457 		dss_select_lcd_clk_source(mgr->id, OMAP_DSS_CLK_SRC_FCK);  in dpi_display_disable()
458 		dss_pll_disable(dpi->pll);  in dpi_display_disable()
464 		regulator_disable(dpi->vdds_dsi_reg);  in dpi_display_disable()
466 	mutex_unlock(&dpi->lock);  in dpi_display_disable()
476 	mutex_lock(&dpi->lock);  in dpi_set_timings()
478 	dpi->timings = *timings;  in dpi_set_timings()
480 	mutex_unlock(&dpi->lock);  in dpi_set_timings()
488 	mutex_lock(&dpi->lock);  in dpi_get_timings()
490 	*timings = dpi->timings;  in dpi_get_timings()
492 	mutex_unlock(&dpi->lock);  in dpi_get_timings()
499 	struct omap_overlay_manager *mgr = dpi->output.manager;  in dpi_check_timings()  local
506 	if (mgr && !dispc_mgr_timings_ok(mgr->id, timings))  in dpi_check_timings()
507 		return -EINVAL;  in dpi_check_timings()
509 	if (timings->pixelclock == 0)  in dpi_check_timings()
510 		return -EINVAL;  in dpi_check_timings()
512 	if (dpi->pll) {  in dpi_check_timings()
513 		ok = dpi_dsi_clk_calc(dpi, timings->pixelclock, &ctx);  in dpi_check_timings()
515 			return -EINVAL;  in dpi_check_timings()
519 		ok = dpi_dss_clk_calc(timings->pixelclock, &ctx);  in dpi_check_timings()
521 			return -EINVAL;  in dpi_check_timings()
531 	timings->pixelclock = pck;  in dpi_check_timings()
540 	mutex_lock(&dpi->lock);  in dpi_set_data_lines()
542 	dpi->data_lines = data_lines;  in dpi_set_data_lines()
544 	mutex_unlock(&dpi->lock);  in dpi_set_data_lines()
569 	if (dpi->vdds_dsi_reg)  in dpi_init_regulator()
572 	vdds_dsi = devm_regulator_get(&dpi->pdev->dev, "vdds_dsi");  in dpi_init_regulator()
574 		if (PTR_ERR(vdds_dsi) != -EPROBE_DEFER)  in dpi_init_regulator()
579 	dpi->vdds_dsi_reg = vdds_dsi;  in dpi_init_regulator()
588 	if (dpi->pll)  in dpi_init_pll()
591 	pll = dpi_get_pll(dpi->output.dispc_channel);  in dpi_init_pll()
597 		dss_ctrl_pll_set_control_mux(pll->id, dpi->output.dispc_channel);  in dpi_init_pll()
604 	dpi->pll = pll;  in dpi_init_pll()
653 	struct omap_overlay_manager *mgr;  in dpi_connect()  local
662 	mgr = omap_dss_get_overlay_manager(dssdev->dispc_channel);  in dpi_connect()
663 	if (!mgr)  in dpi_connect()
664 		return -ENODEV;  in dpi_connect()
666 	r = dss_mgr_connect(mgr, dssdev);  in dpi_connect()
673 				dst->name);  in dpi_connect()
674 		dss_mgr_disconnect(mgr, dssdev);  in dpi_connect()
684 	WARN_ON(dst != dssdev->dst);  in dpi_disconnect()
686 	if (dst != dssdev->dst)  in dpi_disconnect()
691 	if (dssdev->manager)  in dpi_disconnect()
692 		dss_mgr_disconnect(dssdev->manager, dssdev);  in dpi_disconnect()
712 	struct omap_dss_device *out = &dpi->output;  in dpi_init_output()
714 	out->dev = &pdev->dev;  in dpi_init_output()
715 	out->id = OMAP_DSS_OUTPUT_DPI;  in dpi_init_output()
716 	out->output_type = OMAP_DISPLAY_TYPE_DPI;  in dpi_init_output()
717 	out->name = "dpi.0";  in dpi_init_output()
718 	out->dispc_channel = dpi_get_channel(0);  in dpi_init_output()
719 	out->ops.dpi = &dpi_ops;  in dpi_init_output()
720 	out->owner = THIS_MODULE;  in dpi_init_output()
728 	struct omap_dss_device *out = &dpi->output;  in dpi_uninit_output()
736 	struct dpi_data *dpi = port->data;  in dpi_init_output_port()
737 	struct omap_dss_device *out = &dpi->output;  in dpi_init_output_port()
747 		out->name = "dpi.2";  in dpi_init_output_port()
750 		out->name = "dpi.1";  in dpi_init_output_port()
754 		out->name = "dpi.0";  in dpi_init_output_port()
758 	out->dev = &pdev->dev;  in dpi_init_output_port()
759 	out->id = OMAP_DSS_OUTPUT_DPI;  in dpi_init_output_port()
760 	out->output_type = OMAP_DISPLAY_TYPE_DPI;  in dpi_init_output_port()
761 	out->dispc_channel = dpi_get_channel(port_num);  in dpi_init_output_port()
762 	out->port_num = port_num;  in dpi_init_output_port()
763 	out->ops.dpi = &dpi_ops;  in dpi_init_output_port()
764 	out->owner = THIS_MODULE;  in dpi_init_output_port()
771 	struct dpi_data *dpi = port->data;  in dpi_uninit_output_port()
772 	struct omap_dss_device *out = &dpi->output;  in dpi_uninit_output_port()
782 	dpi = devm_kzalloc(&pdev->dev, sizeof(*dpi), GFP_KERNEL);  in dpi_bind()
784 		return -ENOMEM;  in dpi_bind()
786 	dpi->pdev = pdev;  in dpi_bind()
790 	mutex_init(&dpi->lock);  in dpi_bind()
811 	return component_add(&pdev->dev, &dpi_component_ops);  in dpi_probe()
816 	component_del(&pdev->dev, &dpi_component_ops);  in dpi_remove()
845 	dpi = devm_kzalloc(&pdev->dev, sizeof(*dpi), GFP_KERNEL);  in dpi_init_port()
847 		return -ENOMEM;  in dpi_init_port()
853 	r = of_property_read_u32(ep, "data-lines", &datalines);  in dpi_init_port()
859 	dpi->data_lines = datalines;  in dpi_init_port()
863 	dpi->pdev = pdev;  in dpi_init_port()
864 	port->data = dpi;  in dpi_init_port()
866 	mutex_init(&dpi->lock);  in dpi_init_port()
870 	dpi->port_initialized = true;  in dpi_init_port()
882 	struct dpi_data *dpi = port->data;  in dpi_uninit_port()
884 	if (!dpi->port_initialized)  in dpi_uninit_port()