223 static void mtk_dsi_mask(struct mtk_dsi *dsi, u32 offset, u32 mask, u32 data)  in mtk_dsi_mask()  argument
225 	u32 temp = readl(dsi->regs + offset);  in mtk_dsi_mask()
227 	writel((temp & ~mask) | (data & mask), dsi->regs + offset);  in mtk_dsi_mask()
230 static void mtk_dsi_phy_timconfig(struct mtk_dsi *dsi)  in mtk_dsi_phy_timconfig()  argument
233 	u32 data_rate_mhz = DIV_ROUND_UP(dsi->data_rate, 1000000);  in mtk_dsi_phy_timconfig()
234 	struct mtk_phy_timing *timing = &dsi->phy_timing;  in mtk_dsi_phy_timconfig()
262 	writel(timcon0, dsi->regs + DSI_PHY_TIMECON0);  in mtk_dsi_phy_timconfig()
263 	writel(timcon1, dsi->regs + DSI_PHY_TIMECON1);  in mtk_dsi_phy_timconfig()
264 	writel(timcon2, dsi->regs + DSI_PHY_TIMECON2);  in mtk_dsi_phy_timconfig()
265 	writel(timcon3, dsi->regs + DSI_PHY_TIMECON3);  in mtk_dsi_phy_timconfig()
268 static void mtk_dsi_enable(struct mtk_dsi *dsi)  in mtk_dsi_enable()  argument
270 	mtk_dsi_mask(dsi, DSI_CON_CTRL, DSI_EN, DSI_EN);  in mtk_dsi_enable()
273 static void mtk_dsi_disable(struct mtk_dsi *dsi)  in mtk_dsi_disable()  argument
275 	mtk_dsi_mask(dsi, DSI_CON_CTRL, DSI_EN, 0);  in mtk_dsi_disable()
278 static void mtk_dsi_reset_engine(struct mtk_dsi *dsi)  in mtk_dsi_reset_engine()  argument
280 	mtk_dsi_mask(dsi, DSI_CON_CTRL, DSI_RESET, DSI_RESET);  in mtk_dsi_reset_engine()
281 	mtk_dsi_mask(dsi, DSI_CON_CTRL, DSI_RESET, 0);  in mtk_dsi_reset_engine()
284 static void mtk_dsi_reset_dphy(struct mtk_dsi *dsi)  in mtk_dsi_reset_dphy()  argument
286 	mtk_dsi_mask(dsi, DSI_CON_CTRL, DPHY_RESET, DPHY_RESET);  in mtk_dsi_reset_dphy()
287 	mtk_dsi_mask(dsi, DSI_CON_CTRL, DPHY_RESET, 0);  in mtk_dsi_reset_dphy()
290 static void mtk_dsi_clk_ulp_mode_enter(struct mtk_dsi *dsi)  in mtk_dsi_clk_ulp_mode_enter()  argument
292 	mtk_dsi_mask(dsi, DSI_PHY_LCCON, LC_HS_TX_EN, 0);  in mtk_dsi_clk_ulp_mode_enter()
293 	mtk_dsi_mask(dsi, DSI_PHY_LCCON, LC_ULPM_EN, 0);  in mtk_dsi_clk_ulp_mode_enter()
296 static void mtk_dsi_clk_ulp_mode_leave(struct mtk_dsi *dsi)  in mtk_dsi_clk_ulp_mode_leave()  argument
298 	mtk_dsi_mask(dsi, DSI_PHY_LCCON, LC_ULPM_EN, 0);  in mtk_dsi_clk_ulp_mode_leave()
299 	mtk_dsi_mask(dsi, DSI_PHY_LCCON, LC_WAKEUP_EN, LC_WAKEUP_EN);  in mtk_dsi_clk_ulp_mode_leave()
300 	mtk_dsi_mask(dsi, DSI_PHY_LCCON, LC_WAKEUP_EN, 0);  in mtk_dsi_clk_ulp_mode_leave()
303 static void mtk_dsi_lane0_ulp_mode_enter(struct mtk_dsi *dsi)  in mtk_dsi_lane0_ulp_mode_enter()  argument
305 	mtk_dsi_mask(dsi, DSI_PHY_LD0CON, LD0_HS_TX_EN, 0);  in mtk_dsi_lane0_ulp_mode_enter()
306 	mtk_dsi_mask(dsi, DSI_PHY_LD0CON, LD0_ULPM_EN, 0);  in mtk_dsi_lane0_ulp_mode_enter()
309 static void mtk_dsi_lane0_ulp_mode_leave(struct mtk_dsi *dsi)  in mtk_dsi_lane0_ulp_mode_leave()  argument
311 	mtk_dsi_mask(dsi, DSI_PHY_LD0CON, LD0_ULPM_EN, 0);  in mtk_dsi_lane0_ulp_mode_leave()
312 	mtk_dsi_mask(dsi, DSI_PHY_LD0CON, LD0_WAKEUP_EN, LD0_WAKEUP_EN);  in mtk_dsi_lane0_ulp_mode_leave()
313 	mtk_dsi_mask(dsi, DSI_PHY_LD0CON, LD0_WAKEUP_EN, 0);  in mtk_dsi_lane0_ulp_mode_leave()
316 static bool mtk_dsi_clk_hs_state(struct mtk_dsi *dsi)  in mtk_dsi_clk_hs_state()  argument
318 	return readl(dsi->regs + DSI_PHY_LCCON) & LC_HS_TX_EN;  in mtk_dsi_clk_hs_state()
321 static void mtk_dsi_clk_hs_mode(struct mtk_dsi *dsi, bool enter)  in mtk_dsi_clk_hs_mode()  argument
323 	if (enter && !mtk_dsi_clk_hs_state(dsi))  in mtk_dsi_clk_hs_mode()
324 		mtk_dsi_mask(dsi, DSI_PHY_LCCON, LC_HS_TX_EN, LC_HS_TX_EN);  in mtk_dsi_clk_hs_mode()
325 	else if (!enter && mtk_dsi_clk_hs_state(dsi))  in mtk_dsi_clk_hs_mode()
326 		mtk_dsi_mask(dsi, DSI_PHY_LCCON, LC_HS_TX_EN, 0);  in mtk_dsi_clk_hs_mode()
329 static void mtk_dsi_set_mode(struct mtk_dsi *dsi)  in mtk_dsi_set_mode()  argument
333 	if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO) {  in mtk_dsi_set_mode()
334 		if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO_BURST)  in mtk_dsi_set_mode()
336 		else if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO_SYNC_PULSE)  in mtk_dsi_set_mode()
342 	writel(vid_mode, dsi->regs + DSI_MODE_CTRL);  in mtk_dsi_set_mode()
345 static void mtk_dsi_set_vm_cmd(struct mtk_dsi *dsi)  in mtk_dsi_set_vm_cmd()  argument
347 	mtk_dsi_mask(dsi, DSI_VM_CMD_CON, VM_CMD_EN, VM_CMD_EN);  in mtk_dsi_set_vm_cmd()
348 	mtk_dsi_mask(dsi, DSI_VM_CMD_CON, TS_VFP_EN, TS_VFP_EN);  in mtk_dsi_set_vm_cmd()
351 static void mtk_dsi_ps_control_vact(struct mtk_dsi *dsi)  in mtk_dsi_ps_control_vact()  argument
353 	struct videomode *vm = &dsi->vm;  in mtk_dsi_ps_control_vact()
357 	if (dsi->format == MIPI_DSI_FMT_RGB565)  in mtk_dsi_ps_control_vact()
365 	switch (dsi->format) {  in mtk_dsi_ps_control_vact()
380 	writel(vm->vactive, dsi->regs + DSI_VACT_NL);  in mtk_dsi_ps_control_vact()
381 	writel(ps_bpp_mode, dsi->regs + DSI_PSCTRL);  in mtk_dsi_ps_control_vact()
382 	writel(ps_wc, dsi->regs + DSI_HSTX_CKL_WC);  in mtk_dsi_ps_control_vact()
385 static void mtk_dsi_rxtx_control(struct mtk_dsi *dsi)  in mtk_dsi_rxtx_control()  argument
389 	switch (dsi->lanes) {  in mtk_dsi_rxtx_control()
407 	if (dsi->mode_flags & MIPI_DSI_CLOCK_NON_CONTINUOUS)  in mtk_dsi_rxtx_control()
410 	if (dsi->mode_flags & MIPI_DSI_MODE_NO_EOT_PACKET)  in mtk_dsi_rxtx_control()
413 	writel(tmp_reg, dsi->regs + DSI_TXRX_CTRL);  in mtk_dsi_rxtx_control()
416 static void mtk_dsi_ps_control(struct mtk_dsi *dsi)  in mtk_dsi_ps_control()  argument
421 	switch (dsi->format) {  in mtk_dsi_ps_control()
444 	tmp_reg += dsi->vm.hactive * dsi_tmp_buf_bpp & DSI_PS_WC;  in mtk_dsi_ps_control()
445 	writel(tmp_reg, dsi->regs + DSI_PSCTRL);  in mtk_dsi_ps_control()
448 static void mtk_dsi_config_vdo_timing(struct mtk_dsi *dsi)  in mtk_dsi_config_vdo_timing()  argument
457 	struct mtk_phy_timing *timing = &dsi->phy_timing;  in mtk_dsi_config_vdo_timing()
459 	struct videomode *vm = &dsi->vm;  in mtk_dsi_config_vdo_timing()
461 	if (dsi->format == MIPI_DSI_FMT_RGB565)  in mtk_dsi_config_vdo_timing()
466 	writel(vm->vsync_len, dsi->regs + DSI_VSA_NL);  in mtk_dsi_config_vdo_timing()
467 	writel(vm->vback_porch, dsi->regs + DSI_VBP_NL);  in mtk_dsi_config_vdo_timing()
468 	writel(vm->vfront_porch, dsi->regs + DSI_VFP_NL);  in mtk_dsi_config_vdo_timing()
469 	writel(vm->vactive, dsi->regs + DSI_VACT_NL);  in mtk_dsi_config_vdo_timing()
471 	if (dsi->driver_data->has_size_ctl)  in mtk_dsi_config_vdo_timing()
473 		       dsi->regs + DSI_SIZE_CON);  in mtk_dsi_config_vdo_timing()
477 	if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO_SYNC_PULSE)  in mtk_dsi_config_vdo_timing()
486 	delta = dsi->mode_flags & MIPI_DSI_MODE_VIDEO_BURST ? 18 : 12;  in mtk_dsi_config_vdo_timing()
487 	delta += dsi->mode_flags & MIPI_DSI_MODE_NO_EOT_PACKET ? 0 : 2;  in mtk_dsi_config_vdo_timing()
491 	data_phy_cycles_byte = data_phy_cycles * dsi->lanes + delta;  in mtk_dsi_config_vdo_timing()
505 	if ((dsi->mode_flags & MIPI_DSI_HS_PKT_END_ALIGNED) &&  in mtk_dsi_config_vdo_timing()
506 	    (dsi->lanes == 4)) {  in mtk_dsi_config_vdo_timing()
508 			roundup(horizontal_sync_active_byte, dsi->lanes) - 2;  in mtk_dsi_config_vdo_timing()
510 			roundup(horizontal_frontporch_byte, dsi->lanes) - 2;  in mtk_dsi_config_vdo_timing()
512 			roundup(horizontal_backporch_byte, dsi->lanes) - 2;  in mtk_dsi_config_vdo_timing()
514 			(vm->hactive * dsi_tmp_buf_bpp + 2) % dsi->lanes;  in mtk_dsi_config_vdo_timing()
517 	writel(horizontal_sync_active_byte, dsi->regs + DSI_HSA_WC);  in mtk_dsi_config_vdo_timing()
518 	writel(horizontal_backporch_byte, dsi->regs + DSI_HBP_WC);  in mtk_dsi_config_vdo_timing()
519 	writel(horizontal_frontporch_byte, dsi->regs + DSI_HFP_WC);  in mtk_dsi_config_vdo_timing()
521 	mtk_dsi_ps_control(dsi);  in mtk_dsi_config_vdo_timing()
524 static void mtk_dsi_start(struct mtk_dsi *dsi)  in mtk_dsi_start()  argument
526 	writel(0, dsi->regs + DSI_START);  in mtk_dsi_start()
527 	writel(1, dsi->regs + DSI_START);  in mtk_dsi_start()
530 static void mtk_dsi_stop(struct mtk_dsi *dsi)  in mtk_dsi_stop()  argument
532 	writel(0, dsi->regs + DSI_START);  in mtk_dsi_stop()
535 static void mtk_dsi_set_cmd_mode(struct mtk_dsi *dsi)  in mtk_dsi_set_cmd_mode()  argument
537 	writel(CMD_MODE, dsi->regs + DSI_MODE_CTRL);  in mtk_dsi_set_cmd_mode()
540 static void mtk_dsi_set_interrupt_enable(struct mtk_dsi *dsi)  in mtk_dsi_set_interrupt_enable()  argument
544 	writel(inten, dsi->regs + DSI_INTEN);  in mtk_dsi_set_interrupt_enable()
547 static void mtk_dsi_irq_data_set(struct mtk_dsi *dsi, u32 irq_bit)  in mtk_dsi_irq_data_set()  argument
549 	dsi->irq_data |= irq_bit;  in mtk_dsi_irq_data_set()
552 static void mtk_dsi_irq_data_clear(struct mtk_dsi *dsi, u32 irq_bit)  in mtk_dsi_irq_data_clear()  argument
554 	dsi->irq_data &= ~irq_bit;  in mtk_dsi_irq_data_clear()
557 static s32 mtk_dsi_wait_for_irq_done(struct mtk_dsi *dsi, u32 irq_flag,  in mtk_dsi_wait_for_irq_done()  argument
563 	ret = wait_event_interruptible_timeout(dsi->irq_wait_queue,  in mtk_dsi_wait_for_irq_done()
564 					       dsi->irq_data & irq_flag,  in mtk_dsi_wait_for_irq_done()
567 		DRM_WARN("Wait DSI IRQ(0x%08x) Timeout\n", irq_flag);  in mtk_dsi_wait_for_irq_done()
569 		mtk_dsi_enable(dsi);  in mtk_dsi_wait_for_irq_done()
570 		mtk_dsi_reset_engine(dsi);  in mtk_dsi_wait_for_irq_done()
578 	struct mtk_dsi *dsi = dev_id;  in mtk_dsi_irq()  local
582 	status = readl(dsi->regs + DSI_INTSTA) & flag;  in mtk_dsi_irq()
586 			mtk_dsi_mask(dsi, DSI_RACK, RACK, RACK);  in mtk_dsi_irq()
587 			tmp = readl(dsi->regs + DSI_INTSTA);  in mtk_dsi_irq()
590 		mtk_dsi_mask(dsi, DSI_INTSTA, status, 0);  in mtk_dsi_irq()
591 		mtk_dsi_irq_data_set(dsi, status);  in mtk_dsi_irq()
592 		wake_up_interruptible(&dsi->irq_wait_queue);  in mtk_dsi_irq()
598 static s32 mtk_dsi_switch_to_cmd_mode(struct mtk_dsi *dsi, u8 irq_flag, u32 t)  in mtk_dsi_switch_to_cmd_mode()  argument
600 	mtk_dsi_irq_data_clear(dsi, irq_flag);  in mtk_dsi_switch_to_cmd_mode()
601 	mtk_dsi_set_cmd_mode(dsi);  in mtk_dsi_switch_to_cmd_mode()
603 	if (!mtk_dsi_wait_for_irq_done(dsi, irq_flag, t)) {  in mtk_dsi_switch_to_cmd_mode()
611 static int mtk_dsi_poweron(struct mtk_dsi *dsi)  in mtk_dsi_poweron()  argument
613 	struct device *dev = dsi->host.dev;  in mtk_dsi_poweron()
617 	if (++dsi->refcount != 1)  in mtk_dsi_poweron()
620 	switch (dsi->format) {  in mtk_dsi_poweron()
634 	dsi->data_rate = DIV_ROUND_UP_ULL(dsi->vm.pixelclock * bit_per_pixel,  in mtk_dsi_poweron()
635 					  dsi->lanes);  in mtk_dsi_poweron()
637 	ret = clk_set_rate(dsi->hs_clk, dsi->data_rate);  in mtk_dsi_poweron()
643 	phy_power_on(dsi->phy);  in mtk_dsi_poweron()
645 	ret = clk_prepare_enable(dsi->engine_clk);  in mtk_dsi_poweron()
651 	ret = clk_prepare_enable(dsi->digital_clk);  in mtk_dsi_poweron()
657 	mtk_dsi_enable(dsi);  in mtk_dsi_poweron()
659 	if (dsi->driver_data->has_shadow_ctl)  in mtk_dsi_poweron()
661 		       dsi->regs + DSI_SHADOW_DEBUG);  in mtk_dsi_poweron()
663 	mtk_dsi_reset_engine(dsi);  in mtk_dsi_poweron()
664 	mtk_dsi_phy_timconfig(dsi);  in mtk_dsi_poweron()
666 	mtk_dsi_ps_control_vact(dsi);  in mtk_dsi_poweron()
667 	mtk_dsi_set_vm_cmd(dsi);  in mtk_dsi_poweron()
668 	mtk_dsi_config_vdo_timing(dsi);  in mtk_dsi_poweron()
669 	mtk_dsi_set_interrupt_enable(dsi);  in mtk_dsi_poweron()
673 	clk_disable_unprepare(dsi->engine_clk);  in mtk_dsi_poweron()
675 	phy_power_off(dsi->phy);  in mtk_dsi_poweron()
677 	dsi->refcount--;  in mtk_dsi_poweron()
681 static void mtk_dsi_poweroff(struct mtk_dsi *dsi)  in mtk_dsi_poweroff()  argument
683 	if (WARN_ON(dsi->refcount == 0))  in mtk_dsi_poweroff()
686 	if (--dsi->refcount != 0)  in mtk_dsi_poweroff()
694 	 * after dsi is fully set.  in mtk_dsi_poweroff()
696 	mtk_dsi_stop(dsi);  in mtk_dsi_poweroff()
698 	mtk_dsi_switch_to_cmd_mode(dsi, VM_DONE_INT_FLAG, 500);  in mtk_dsi_poweroff()
699 	mtk_dsi_reset_engine(dsi);  in mtk_dsi_poweroff()
700 	mtk_dsi_lane0_ulp_mode_enter(dsi);  in mtk_dsi_poweroff()
701 	mtk_dsi_clk_ulp_mode_enter(dsi);  in mtk_dsi_poweroff()
703 	writel(0, dsi->regs + DSI_TXRX_CTRL);  in mtk_dsi_poweroff()
705 	mtk_dsi_disable(dsi);  in mtk_dsi_poweroff()
707 	clk_disable_unprepare(dsi->engine_clk);  in mtk_dsi_poweroff()
708 	clk_disable_unprepare(dsi->digital_clk);  in mtk_dsi_poweroff()
710 	phy_power_off(dsi->phy);  in mtk_dsi_poweroff()
712 	dsi->lanes_ready = false;  in mtk_dsi_poweroff()
715 static void mtk_dsi_lane_ready(struct mtk_dsi *dsi)  in mtk_dsi_lane_ready()  argument
717 	if (!dsi->lanes_ready) {  in mtk_dsi_lane_ready()
718 		dsi->lanes_ready = true;  in mtk_dsi_lane_ready()
719 		mtk_dsi_rxtx_control(dsi);  in mtk_dsi_lane_ready()
721 		mtk_dsi_reset_dphy(dsi);  in mtk_dsi_lane_ready()
722 		mtk_dsi_clk_ulp_mode_leave(dsi);  in mtk_dsi_lane_ready()
723 		mtk_dsi_lane0_ulp_mode_leave(dsi);  in mtk_dsi_lane_ready()
724 		mtk_dsi_clk_hs_mode(dsi, 0);  in mtk_dsi_lane_ready()
730 static void mtk_output_dsi_enable(struct mtk_dsi *dsi)  in mtk_output_dsi_enable()  argument
732 	if (dsi->enabled)  in mtk_output_dsi_enable()
735 	mtk_dsi_lane_ready(dsi);  in mtk_output_dsi_enable()
736 	mtk_dsi_set_mode(dsi);  in mtk_output_dsi_enable()
737 	mtk_dsi_clk_hs_mode(dsi, 1);  in mtk_output_dsi_enable()
739 	mtk_dsi_start(dsi);  in mtk_output_dsi_enable()
741 	dsi->enabled = true;  in mtk_output_dsi_enable()
744 static void mtk_output_dsi_disable(struct mtk_dsi *dsi)  in mtk_output_dsi_disable()  argument
746 	if (!dsi->enabled)  in mtk_output_dsi_disable()
749 	dsi->enabled = false;  in mtk_output_dsi_disable()
755 	struct mtk_dsi *dsi = bridge_to_dsi(bridge);  in mtk_dsi_bridge_attach()  local
757 	/* Attach the panel or bridge to the dsi bridge */  in mtk_dsi_bridge_attach()
758 	return drm_bridge_attach(bridge->encoder, dsi->next_bridge,  in mtk_dsi_bridge_attach()
759 				 &dsi->bridge, flags);  in mtk_dsi_bridge_attach()
766 	struct mtk_dsi *dsi = bridge_to_dsi(bridge);  in mtk_dsi_bridge_mode_set()  local
768 	drm_display_mode_to_videomode(adjusted, &dsi->vm);  in mtk_dsi_bridge_mode_set()
774 	struct mtk_dsi *dsi = bridge_to_dsi(bridge);  in mtk_dsi_bridge_atomic_disable()  local
776 	mtk_output_dsi_disable(dsi);  in mtk_dsi_bridge_atomic_disable()
782 	struct mtk_dsi *dsi = bridge_to_dsi(bridge);  in mtk_dsi_bridge_atomic_enable()  local
784 	if (dsi->refcount == 0)  in mtk_dsi_bridge_atomic_enable()
787 	mtk_output_dsi_enable(dsi);  in mtk_dsi_bridge_atomic_enable()
793 	struct mtk_dsi *dsi = bridge_to_dsi(bridge);  in mtk_dsi_bridge_atomic_pre_enable()  local
796 	ret = mtk_dsi_poweron(dsi);  in mtk_dsi_bridge_atomic_pre_enable()
798 		DRM_ERROR("failed to power on dsi\n");  in mtk_dsi_bridge_atomic_pre_enable()
804 	struct mtk_dsi *dsi = bridge_to_dsi(bridge);  in mtk_dsi_bridge_atomic_post_disable()  local
806 	mtk_dsi_poweroff(dsi);  in mtk_dsi_bridge_atomic_post_disable()
823 	struct mtk_dsi *dsi = dev_get_drvdata(dev);  in mtk_dsi_ddp_start()  local
825 	mtk_dsi_poweron(dsi);  in mtk_dsi_ddp_start()
830 	struct mtk_dsi *dsi = dev_get_drvdata(dev);  in mtk_dsi_ddp_stop()  local
832 	mtk_dsi_poweroff(dsi);  in mtk_dsi_ddp_stop()
835 static int mtk_dsi_encoder_init(struct drm_device *drm, struct mtk_dsi *dsi)  in mtk_dsi_encoder_init()  argument
839 	ret = drm_simple_encoder_init(drm, &dsi->encoder,  in mtk_dsi_encoder_init()
846 	dsi->encoder.possible_crtcs = mtk_drm_find_possible_crtc_by_comp(drm, dsi->host.dev);  in mtk_dsi_encoder_init()
848 	ret = drm_bridge_attach(&dsi->encoder, &dsi->bridge, NULL,  in mtk_dsi_encoder_init()
853 	dsi->connector = drm_bridge_connector_init(drm, &dsi->encoder);  in mtk_dsi_encoder_init()
854 	if (IS_ERR(dsi->connector)) {  in mtk_dsi_encoder_init()
856 		ret = PTR_ERR(dsi->connector);  in mtk_dsi_encoder_init()
859 	drm_connector_attach_encoder(dsi->connector, &dsi->encoder);  in mtk_dsi_encoder_init()
864 	drm_encoder_cleanup(&dsi->encoder);  in mtk_dsi_encoder_init()
872 	struct mtk_dsi *dsi = dev_get_drvdata(dev);  in mtk_dsi_bind()  local
874 	ret = mtk_dsi_encoder_init(drm, dsi);  in mtk_dsi_bind()
884 	struct mtk_dsi *dsi = dev_get_drvdata(dev);  in mtk_dsi_unbind()  local
886 	drm_encoder_cleanup(&dsi->encoder);  in mtk_dsi_unbind()
897 	struct mtk_dsi *dsi = host_to_dsi(host);  in mtk_dsi_host_attach()  local
901 	dsi->lanes = device->lanes;  in mtk_dsi_host_attach()
902 	dsi->format = device->format;  in mtk_dsi_host_attach()
903 	dsi->mode_flags = device->mode_flags;  in mtk_dsi_host_attach()
904 	dsi->next_bridge = devm_drm_of_get_bridge(dev, dev->of_node, 0, 0);  in mtk_dsi_host_attach()
905 	if (IS_ERR(dsi->next_bridge))  in mtk_dsi_host_attach()
906 		return PTR_ERR(dsi->next_bridge);  in mtk_dsi_host_attach()
908 	drm_bridge_add(&dsi->bridge);  in mtk_dsi_host_attach()
913 		drm_bridge_remove(&dsi->bridge);  in mtk_dsi_host_attach()
923 	struct mtk_dsi *dsi = host_to_dsi(host);  in mtk_dsi_host_detach()  local
926 	drm_bridge_remove(&dsi->bridge);  in mtk_dsi_host_detach()
930 static void mtk_dsi_wait_for_idle(struct mtk_dsi *dsi)  in mtk_dsi_wait_for_idle()  argument
935 	ret = readl_poll_timeout(dsi->regs + DSI_INTSTA, val, !(val & DSI_BUSY),  in mtk_dsi_wait_for_idle()
938 		DRM_WARN("polling dsi wait not busy timeout!\n");  in mtk_dsi_wait_for_idle()
940 		mtk_dsi_enable(dsi);  in mtk_dsi_wait_for_idle()
941 		mtk_dsi_reset_engine(dsi);  in mtk_dsi_wait_for_idle()
968 static void mtk_dsi_cmdq(struct mtk_dsi *dsi, const struct mipi_dsi_msg *msg)  in mtk_dsi_cmdq()  argument
973 	u32 reg_cmdq_off = dsi->driver_data->reg_cmdq_off;  in mtk_dsi_cmdq()
993 		mtk_dsi_mask(dsi, (reg_cmdq_off + cmdq_off + i) & (~0x3U),  in mtk_dsi_cmdq()
997 	mtk_dsi_mask(dsi, reg_cmdq_off, cmdq_mask, reg_val);  in mtk_dsi_cmdq()
998 	mtk_dsi_mask(dsi, DSI_CMDQ_SIZE, CMDQ_SIZE, cmdq_size);  in mtk_dsi_cmdq()
1001 static ssize_t mtk_dsi_host_send_cmd(struct mtk_dsi *dsi,  in mtk_dsi_host_send_cmd()  argument
1004 	mtk_dsi_wait_for_idle(dsi);  in mtk_dsi_host_send_cmd()
1005 	mtk_dsi_irq_data_clear(dsi, flag);  in mtk_dsi_host_send_cmd()
1006 	mtk_dsi_cmdq(dsi, msg);  in mtk_dsi_host_send_cmd()
1007 	mtk_dsi_start(dsi);  in mtk_dsi_host_send_cmd()
1009 	if (!mtk_dsi_wait_for_irq_done(dsi, flag, 2000))  in mtk_dsi_host_send_cmd()
1018 	struct mtk_dsi *dsi = host_to_dsi(host);  in mtk_dsi_host_transfer()  local
1026 	dsi_mode = readl(dsi->regs + DSI_MODE_CTRL);  in mtk_dsi_host_transfer()
1028 		mtk_dsi_stop(dsi);  in mtk_dsi_host_transfer()
1029 		ret = mtk_dsi_switch_to_cmd_mode(dsi, VM_DONE_INT_FLAG, 500);  in mtk_dsi_host_transfer()
1037 	mtk_dsi_lane_ready(dsi);  in mtk_dsi_host_transfer()
1039 	ret = mtk_dsi_host_send_cmd(dsi, msg, irq_flag);  in mtk_dsi_host_transfer()
1049 		DRM_ERROR("dsi receive buffer size may be NULL\n");  in mtk_dsi_host_transfer()
1055 		*(read_data + i) = readb(dsi->regs + DSI_RX_DATA0 + i);  in mtk_dsi_host_transfer()
1073 	DRM_INFO("dsi get %d byte data from the panel address(0x%x)\n",  in mtk_dsi_host_transfer()
1078 		mtk_dsi_set_mode(dsi);  in mtk_dsi_host_transfer()
1079 		mtk_dsi_start(dsi);  in mtk_dsi_host_transfer()
1093 	struct mtk_dsi *dsi;  in mtk_dsi_probe()  local
1099 	dsi = devm_kzalloc(dev, sizeof(*dsi), GFP_KERNEL);  in mtk_dsi_probe()
1100 	if (!dsi)  in mtk_dsi_probe()
1103 	dsi->host.ops = &mtk_dsi_ops;  in mtk_dsi_probe()
1104 	dsi->host.dev = dev;  in mtk_dsi_probe()
1105 	ret = mipi_dsi_host_register(&dsi->host);  in mtk_dsi_probe()
1107 		dev_err(dev, "failed to register DSI host: %d\n", ret);  in mtk_dsi_probe()
1111 	dsi->driver_data = of_device_get_match_data(dev);  in mtk_dsi_probe()
1113 	dsi->engine_clk = devm_clk_get(dev, "engine");  in mtk_dsi_probe()
1114 	if (IS_ERR(dsi->engine_clk)) {  in mtk_dsi_probe()
1115 		ret = PTR_ERR(dsi->engine_clk);  in mtk_dsi_probe()
1122 	dsi->digital_clk = devm_clk_get(dev, "digital");  in mtk_dsi_probe()
1123 	if (IS_ERR(dsi->digital_clk)) {  in mtk_dsi_probe()
1124 		ret = PTR_ERR(dsi->digital_clk);  in mtk_dsi_probe()
1131 	dsi->hs_clk = devm_clk_get(dev, "hs");  in mtk_dsi_probe()
1132 	if (IS_ERR(dsi->hs_clk)) {  in mtk_dsi_probe()
1133 		ret = PTR_ERR(dsi->hs_clk);  in mtk_dsi_probe()
1139 	dsi->regs = devm_ioremap_resource(dev, regs);  in mtk_dsi_probe()
1140 	if (IS_ERR(dsi->regs)) {  in mtk_dsi_probe()
1141 		ret = PTR_ERR(dsi->regs);  in mtk_dsi_probe()
1146 	dsi->phy = devm_phy_get(dev, "dphy");  in mtk_dsi_probe()
1147 	if (IS_ERR(dsi->phy)) {  in mtk_dsi_probe()
1148 		ret = PTR_ERR(dsi->phy);  in mtk_dsi_probe()
1160 			       IRQF_TRIGGER_NONE, dev_name(&pdev->dev), dsi);  in mtk_dsi_probe()
1162 		dev_err(&pdev->dev, "failed to request mediatek dsi irq\n");  in mtk_dsi_probe()
1166 	init_waitqueue_head(&dsi->irq_wait_queue);  in mtk_dsi_probe()
1168 	platform_set_drvdata(pdev, dsi);  in mtk_dsi_probe()
1170 	dsi->bridge.funcs = &mtk_dsi_bridge_funcs;  in mtk_dsi_probe()
1171 	dsi->bridge.of_node = dev->of_node;  in mtk_dsi_probe()
1172 	dsi->bridge.type = DRM_MODE_CONNECTOR_DSI;  in mtk_dsi_probe()
1177 	mipi_dsi_host_unregister(&dsi->host);  in mtk_dsi_probe()
1183 	struct mtk_dsi *dsi = platform_get_drvdata(pdev);  in mtk_dsi_remove()  local
1185 	mtk_output_dsi_disable(dsi);  in mtk_dsi_remove()
1186 	mipi_dsi_host_unregister(&dsi->host);  in mtk_dsi_remove()
1210 	{ .compatible = "mediatek,mt2701-dsi",
1212 	{ .compatible = "mediatek,mt8173-dsi",
1214 	{ .compatible = "mediatek,mt8183-dsi",
1216 	{ .compatible = "mediatek,mt8186-dsi",
1226 		.name = "mtk-dsi",