79 static void sun4i_frontend_scaler_init(struct sun4i_frontend *frontend)  in sun4i_frontend_scaler_init()  argument
83 	if (frontend->data->has_coef_access_ctrl)  in sun4i_frontend_scaler_init()
84 		regmap_write_bits(frontend->regs, SUN4I_FRONTEND_FRM_CTRL_REG,  in sun4i_frontend_scaler_init()
89 		regmap_write(frontend->regs, SUN4I_FRONTEND_CH0_HORZCOEF0_REG(i),  in sun4i_frontend_scaler_init()
91 		regmap_write(frontend->regs, SUN4I_FRONTEND_CH1_HORZCOEF0_REG(i),  in sun4i_frontend_scaler_init()
93 		regmap_write(frontend->regs, SUN4I_FRONTEND_CH0_HORZCOEF1_REG(i),  in sun4i_frontend_scaler_init()
95 		regmap_write(frontend->regs, SUN4I_FRONTEND_CH1_HORZCOEF1_REG(i),  in sun4i_frontend_scaler_init()
97 		regmap_write(frontend->regs, SUN4I_FRONTEND_CH0_VERTCOEF_REG(i),  in sun4i_frontend_scaler_init()
99 		regmap_write(frontend->regs, SUN4I_FRONTEND_CH1_VERTCOEF_REG(i),  in sun4i_frontend_scaler_init()
103 	if (frontend->data->has_coef_rdy)  in sun4i_frontend_scaler_init()
104 		regmap_write_bits(frontend->regs,  in sun4i_frontend_scaler_init()
110 int sun4i_frontend_init(struct sun4i_frontend *frontend)  in sun4i_frontend_init()  argument
112 	return pm_runtime_get_sync(frontend->dev);  in sun4i_frontend_init()
116 void sun4i_frontend_exit(struct sun4i_frontend *frontend)  in sun4i_frontend_exit()  argument
118 	pm_runtime_put(frontend->dev);  in sun4i_frontend_exit()
156 void sun4i_frontend_update_buffer(struct sun4i_frontend *frontend,  in sun4i_frontend_update_buffer()  argument
179 		regmap_write(frontend->regs, SUN4I_FRONTEND_TB_OFF0_REG,  in sun4i_frontend_update_buffer()
186 			regmap_write(frontend->regs, SUN4I_FRONTEND_TB_OFF1_REG,  in sun4i_frontend_update_buffer()
194 			regmap_write(frontend->regs, SUN4I_FRONTEND_TB_OFF2_REG,  in sun4i_frontend_update_buffer()
208 	DRM_DEBUG_DRIVER("Frontend stride: %d bytes\n", fb->pitches[0]);  in sun4i_frontend_update_buffer()
209 	regmap_write(frontend->regs, SUN4I_FRONTEND_LINESTRD0_REG,  in sun4i_frontend_update_buffer()
213 		regmap_write(frontend->regs, SUN4I_FRONTEND_LINESTRD1_REG,  in sun4i_frontend_update_buffer()
217 		regmap_write(frontend->regs, SUN4I_FRONTEND_LINESTRD2_REG,  in sun4i_frontend_update_buffer()
227 	regmap_write(frontend->regs, SUN4I_FRONTEND_BUF_ADDR0_REG, paddr);  in sun4i_frontend_update_buffer()
233 		regmap_write(frontend->regs, SUN4I_FRONTEND_BUF_ADDR1_REG,  in sun4i_frontend_update_buffer()
241 		regmap_write(frontend->regs, SUN4I_FRONTEND_BUF_ADDR2_REG,  in sun4i_frontend_update_buffer()
403 int sun4i_frontend_update_formats(struct sun4i_frontend *frontend,  in sun4i_frontend_update_formats()  argument
447 	regmap_write(frontend->regs, SUN4I_FRONTEND_CH0_HORZPHASE_REG,  in sun4i_frontend_update_formats()
448 		     frontend->data->ch_phase[0]);  in sun4i_frontend_update_formats()
449 	regmap_write(frontend->regs, SUN4I_FRONTEND_CH1_HORZPHASE_REG,  in sun4i_frontend_update_formats()
450 		     frontend->data->ch_phase[ch1_phase_idx]);  in sun4i_frontend_update_formats()
451 	regmap_write(frontend->regs, SUN4I_FRONTEND_CH0_VERTPHASE0_REG,  in sun4i_frontend_update_formats()
452 		     frontend->data->ch_phase[0]);  in sun4i_frontend_update_formats()
453 	regmap_write(frontend->regs, SUN4I_FRONTEND_CH1_VERTPHASE0_REG,  in sun4i_frontend_update_formats()
454 		     frontend->data->ch_phase[ch1_phase_idx]);  in sun4i_frontend_update_formats()
455 	regmap_write(frontend->regs, SUN4I_FRONTEND_CH0_VERTPHASE1_REG,  in sun4i_frontend_update_formats()
456 		     frontend->data->ch_phase[0]);  in sun4i_frontend_update_formats()
457 	regmap_write(frontend->regs, SUN4I_FRONTEND_CH1_VERTPHASE1_REG,  in sun4i_frontend_update_formats()
458 		     frontend->data->ch_phase[ch1_phase_idx]);  in sun4i_frontend_update_formats()
471 			regmap_write(frontend->regs,  in sun4i_frontend_update_formats()
478 	regmap_update_bits(frontend->regs, SUN4I_FRONTEND_BYPASS_REG,  in sun4i_frontend_update_formats()
481 	regmap_write(frontend->regs, SUN4I_FRONTEND_INPUT_FMT_REG,  in sun4i_frontend_update_formats()
489 	regmap_write(frontend->regs, SUN4I_FRONTEND_OUTPUT_FMT_REG,  in sun4i_frontend_update_formats()
496 void sun4i_frontend_update_coord(struct sun4i_frontend *frontend,  in sun4i_frontend_update_coord()  argument
505 	DRM_DEBUG_DRIVER("Frontend size W: %u H: %u\n",  in sun4i_frontend_update_coord()
514 	regmap_write(frontend->regs, SUN4I_FRONTEND_CH0_INSIZE_REG,  in sun4i_frontend_update_coord()
516 	regmap_write(frontend->regs, SUN4I_FRONTEND_CH1_INSIZE_REG,  in sun4i_frontend_update_coord()
519 	regmap_write(frontend->regs, SUN4I_FRONTEND_CH0_OUTSIZE_REG,  in sun4i_frontend_update_coord()
521 	regmap_write(frontend->regs, SUN4I_FRONTEND_CH1_OUTSIZE_REG,  in sun4i_frontend_update_coord()
524 	regmap_write(frontend->regs, SUN4I_FRONTEND_CH0_HORZFACT_REG,  in sun4i_frontend_update_coord()
526 	regmap_write(frontend->regs, SUN4I_FRONTEND_CH1_HORZFACT_REG,  in sun4i_frontend_update_coord()
529 	regmap_write(frontend->regs, SUN4I_FRONTEND_CH0_VERTFACT_REG,  in sun4i_frontend_update_coord()
531 	regmap_write(frontend->regs, SUN4I_FRONTEND_CH1_VERTFACT_REG,  in sun4i_frontend_update_coord()
534 	regmap_write_bits(frontend->regs, SUN4I_FRONTEND_FRM_CTRL_REG,  in sun4i_frontend_update_coord()
540 int sun4i_frontend_enable(struct sun4i_frontend *frontend)  in sun4i_frontend_enable()  argument
542 	regmap_write_bits(frontend->regs, SUN4I_FRONTEND_FRM_CTRL_REG,  in sun4i_frontend_enable()
561 	struct sun4i_frontend *frontend;  in sun4i_frontend_bind()  local
567 	frontend = devm_kzalloc(dev, sizeof(*frontend), GFP_KERNEL);  in sun4i_frontend_bind()
568 	if (!frontend)  in sun4i_frontend_bind()
571 	dev_set_drvdata(dev, frontend);  in sun4i_frontend_bind()
572 	frontend->dev = dev;  in sun4i_frontend_bind()
573 	frontend->node = dev->of_node;  in sun4i_frontend_bind()
575 	frontend->data = of_device_get_match_data(dev);  in sun4i_frontend_bind()
576 	if (!frontend->data)  in sun4i_frontend_bind()
584 	frontend->regs = devm_regmap_init_mmio(dev, regs,  in sun4i_frontend_bind()
586 	if (IS_ERR(frontend->regs)) {  in sun4i_frontend_bind()
587 		dev_err(dev, "Couldn't create the frontend regmap\n");  in sun4i_frontend_bind()
588 		return PTR_ERR(frontend->regs);  in sun4i_frontend_bind()
591 	frontend->reset = devm_reset_control_get(dev, NULL);  in sun4i_frontend_bind()
592 	if (IS_ERR(frontend->reset)) {  in sun4i_frontend_bind()
594 		return PTR_ERR(frontend->reset);  in sun4i_frontend_bind()
597 	frontend->bus_clk = devm_clk_get(dev, "ahb");  in sun4i_frontend_bind()
598 	if (IS_ERR(frontend->bus_clk)) {  in sun4i_frontend_bind()
600 		return PTR_ERR(frontend->bus_clk);  in sun4i_frontend_bind()
603 	frontend->mod_clk = devm_clk_get(dev, "mod");  in sun4i_frontend_bind()
604 	if (IS_ERR(frontend->mod_clk)) {  in sun4i_frontend_bind()
606 		return PTR_ERR(frontend->mod_clk);  in sun4i_frontend_bind()
609 	frontend->ram_clk = devm_clk_get(dev, "ram");  in sun4i_frontend_bind()
610 	if (IS_ERR(frontend->ram_clk)) {  in sun4i_frontend_bind()
612 		return PTR_ERR(frontend->ram_clk);  in sun4i_frontend_bind()
615 	list_add_tail(&frontend->list, &drv->frontend_list);  in sun4i_frontend_bind()
624 	struct sun4i_frontend *frontend = dev_get_drvdata(dev);  in sun4i_frontend_unbind()  local
626 	list_del(&frontend->list);  in sun4i_frontend_unbind()
649 	struct sun4i_frontend *frontend = dev_get_drvdata(dev);  in sun4i_frontend_runtime_resume()  local
652 	clk_set_rate(frontend->mod_clk, 300000000);  in sun4i_frontend_runtime_resume()
654 	clk_prepare_enable(frontend->bus_clk);  in sun4i_frontend_runtime_resume()
655 	clk_prepare_enable(frontend->mod_clk);  in sun4i_frontend_runtime_resume()
656 	clk_prepare_enable(frontend->ram_clk);  in sun4i_frontend_runtime_resume()
658 	ret = reset_control_reset(frontend->reset);  in sun4i_frontend_runtime_resume()
664 	regmap_update_bits(frontend->regs, SUN4I_FRONTEND_EN_REG,  in sun4i_frontend_runtime_resume()
668 	sun4i_frontend_scaler_init(frontend);  in sun4i_frontend_runtime_resume()
675 	struct sun4i_frontend *frontend = dev_get_drvdata(dev);  in sun4i_frontend_runtime_suspend()  local
677 	clk_disable_unprepare(frontend->ram_clk);  in sun4i_frontend_runtime_suspend()
678 	clk_disable_unprepare(frontend->mod_clk);  in sun4i_frontend_runtime_suspend()
679 	clk_disable_unprepare(frontend->bus_clk);  in sun4i_frontend_runtime_suspend()
681 	reset_control_assert(frontend->reset);  in sun4i_frontend_runtime_suspend()
703 		.compatible = "allwinner,sun4i-a10-display-frontend",
707 		.compatible = "allwinner,sun7i-a20-display-frontend",
711 		.compatible = "allwinner,sun8i-a23-display-frontend",
715 		.compatible = "allwinner,sun8i-a33-display-frontend",
727 		.name		= "sun4i-frontend",
735 MODULE_DESCRIPTION("Allwinner A10 Display Engine Frontend Driver");