Lines Matching full:dsi
29 #include "dsi.h"
102 static struct tegra_dsi_state *tegra_dsi_get_state(struct tegra_dsi *dsi) in tegra_dsi_get_state() argument
104 return to_dsi_state(dsi->output.connector.state); in tegra_dsi_get_state()
107 static inline u32 tegra_dsi_readl(struct tegra_dsi *dsi, unsigned int offset) in tegra_dsi_readl() argument
109 u32 value = readl(dsi->regs + (offset << 2)); in tegra_dsi_readl()
111 trace_dsi_readl(dsi->dev, offset, value); in tegra_dsi_readl()
116 static inline void tegra_dsi_writel(struct tegra_dsi *dsi, u32 value, in tegra_dsi_writel() argument
119 trace_dsi_writel(dsi->dev, offset, value); in tegra_dsi_writel()
120 writel(value, dsi->regs + (offset << 2)); in tegra_dsi_writel()
202 struct tegra_dsi *dsi = node->info_ent->data; in tegra_dsi_show_regs() local
203 struct drm_crtc *crtc = dsi->output.encoder.crtc; in tegra_dsi_show_regs()
219 offset, tegra_dsi_readl(dsi, offset)); in tegra_dsi_show_regs()
237 struct tegra_dsi *dsi = to_dsi(output); in tegra_dsi_late_register() local
239 dsi->debugfs_files = kmemdup(debugfs_files, sizeof(debugfs_files), in tegra_dsi_late_register()
241 if (!dsi->debugfs_files) in tegra_dsi_late_register()
245 dsi->debugfs_files[i].data = dsi; in tegra_dsi_late_register()
247 drm_debugfs_create_files(dsi->debugfs_files, count, root, minor); in tegra_dsi_late_register()
256 struct tegra_dsi *dsi = to_dsi(output); in tegra_dsi_early_unregister() local
258 drm_debugfs_remove_files(dsi->debugfs_files, count, in tegra_dsi_early_unregister()
260 kfree(dsi->debugfs_files); in tegra_dsi_early_unregister()
261 dsi->debugfs_files = NULL; in tegra_dsi_early_unregister()
357 static void tegra_dsi_set_phy_timing(struct tegra_dsi *dsi, in tegra_dsi_set_phy_timing() argument
367 tegra_dsi_writel(dsi, value, DSI_PHY_TIMING_0); in tegra_dsi_set_phy_timing()
373 tegra_dsi_writel(dsi, value, DSI_PHY_TIMING_1); in tegra_dsi_set_phy_timing()
378 tegra_dsi_writel(dsi, value, DSI_PHY_TIMING_2); in tegra_dsi_set_phy_timing()
383 tegra_dsi_writel(dsi, value, DSI_BTA_TIMING); in tegra_dsi_set_phy_timing()
385 if (dsi->slave) in tegra_dsi_set_phy_timing()
386 tegra_dsi_set_phy_timing(dsi->slave, period, timing); in tegra_dsi_set_phy_timing()
443 static void tegra_dsi_ganged_enable(struct tegra_dsi *dsi, unsigned int start, in tegra_dsi_ganged_enable() argument
448 tegra_dsi_writel(dsi, start, DSI_GANGED_MODE_START); in tegra_dsi_ganged_enable()
449 tegra_dsi_writel(dsi, size << 16 | size, DSI_GANGED_MODE_SIZE); in tegra_dsi_ganged_enable()
452 tegra_dsi_writel(dsi, value, DSI_GANGED_MODE_CONTROL); in tegra_dsi_ganged_enable()
455 static void tegra_dsi_enable(struct tegra_dsi *dsi) in tegra_dsi_enable() argument
459 value = tegra_dsi_readl(dsi, DSI_POWER_CONTROL); in tegra_dsi_enable()
461 tegra_dsi_writel(dsi, value, DSI_POWER_CONTROL); in tegra_dsi_enable()
463 if (dsi->slave) in tegra_dsi_enable()
464 tegra_dsi_enable(dsi->slave); in tegra_dsi_enable()
467 static unsigned int tegra_dsi_get_lanes(struct tegra_dsi *dsi) in tegra_dsi_get_lanes() argument
469 if (dsi->master) in tegra_dsi_get_lanes()
470 return dsi->master->lanes + dsi->lanes; in tegra_dsi_get_lanes()
472 if (dsi->slave) in tegra_dsi_get_lanes()
473 return dsi->lanes + dsi->slave->lanes; in tegra_dsi_get_lanes()
475 return dsi->lanes; in tegra_dsi_get_lanes()
478 static void tegra_dsi_configure(struct tegra_dsi *dsi, unsigned int pipe, in tegra_dsi_configure() argument
487 if (dsi->master) in tegra_dsi_configure()
488 state = tegra_dsi_get_state(dsi->master); in tegra_dsi_configure()
490 state = tegra_dsi_get_state(dsi); in tegra_dsi_configure()
495 if (dsi->flags & MIPI_DSI_MODE_VIDEO_SYNC_PULSE) { in tegra_dsi_configure()
498 } else if (dsi->flags & MIPI_DSI_MODE_VIDEO) { in tegra_dsi_configure()
508 DSI_CONTROL_LANES(dsi->lanes - 1) | in tegra_dsi_configure()
510 tegra_dsi_writel(dsi, value, DSI_CONTROL); in tegra_dsi_configure()
512 tegra_dsi_writel(dsi, dsi->video_fifo_depth, DSI_MAX_THRESHOLD); in tegra_dsi_configure()
515 tegra_dsi_writel(dsi, value, DSI_HOST_CONTROL); in tegra_dsi_configure()
517 value = tegra_dsi_readl(dsi, DSI_CONTROL); in tegra_dsi_configure()
519 if (dsi->flags & MIPI_DSI_CLOCK_NON_CONTINUOUS) in tegra_dsi_configure()
525 if (dsi->flags & MIPI_DSI_MODE_VIDEO) in tegra_dsi_configure()
532 tegra_dsi_writel(dsi, value, DSI_CONTROL); in tegra_dsi_configure()
535 tegra_dsi_writel(dsi, pkt_seq[i], DSI_PKT_SEQ_0_LO + i); in tegra_dsi_configure()
537 if (dsi->flags & MIPI_DSI_MODE_VIDEO) { in tegra_dsi_configure()
547 if ((dsi->flags & MIPI_DSI_MODE_VIDEO_SYNC_PULSE) == 0) in tegra_dsi_configure()
558 tegra_dsi_writel(dsi, hsw << 16 | 0, DSI_PKT_LEN_0_1); in tegra_dsi_configure()
559 tegra_dsi_writel(dsi, hact << 16 | hbp, DSI_PKT_LEN_2_3); in tegra_dsi_configure()
560 tegra_dsi_writel(dsi, hfp, DSI_PKT_LEN_4_5); in tegra_dsi_configure()
561 tegra_dsi_writel(dsi, 0x0f0f << 16, DSI_PKT_LEN_6_7); in tegra_dsi_configure()
564 tegra_dsi_writel(dsi, 8 * mul / div, DSI_SOL_DELAY); in tegra_dsi_configure()
570 if (dsi->master || dsi->slave) { in tegra_dsi_configure()
580 tegra_dsi_writel(dsi, 0, DSI_PKT_LEN_0_1); in tegra_dsi_configure()
581 tegra_dsi_writel(dsi, bytes << 16, DSI_PKT_LEN_2_3); in tegra_dsi_configure()
582 tegra_dsi_writel(dsi, bytes << 16, DSI_PKT_LEN_4_5); in tegra_dsi_configure()
583 tegra_dsi_writel(dsi, 0, DSI_PKT_LEN_6_7); in tegra_dsi_configure()
587 tegra_dsi_writel(dsi, value, DSI_DCS_CMDS); in tegra_dsi_configure()
590 if (dsi->master || dsi->slave) { in tegra_dsi_configure()
608 tegra_dsi_writel(dsi, value, DSI_SOL_DELAY); in tegra_dsi_configure()
611 if (dsi->slave) { in tegra_dsi_configure()
612 tegra_dsi_configure(dsi->slave, pipe, mode); in tegra_dsi_configure()
618 tegra_dsi_ganged_enable(dsi, 0, mode->hdisplay / 2); in tegra_dsi_configure()
619 tegra_dsi_ganged_enable(dsi->slave, mode->hdisplay / 2, in tegra_dsi_configure()
624 static int tegra_dsi_wait_idle(struct tegra_dsi *dsi, unsigned long timeout) in tegra_dsi_wait_idle() argument
631 value = tegra_dsi_readl(dsi, DSI_STATUS); in tegra_dsi_wait_idle()
641 static void tegra_dsi_video_disable(struct tegra_dsi *dsi) in tegra_dsi_video_disable() argument
645 value = tegra_dsi_readl(dsi, DSI_CONTROL); in tegra_dsi_video_disable()
647 tegra_dsi_writel(dsi, value, DSI_CONTROL); in tegra_dsi_video_disable()
649 if (dsi->slave) in tegra_dsi_video_disable()
650 tegra_dsi_video_disable(dsi->slave); in tegra_dsi_video_disable()
653 static void tegra_dsi_ganged_disable(struct tegra_dsi *dsi) in tegra_dsi_ganged_disable() argument
655 tegra_dsi_writel(dsi, 0, DSI_GANGED_MODE_START); in tegra_dsi_ganged_disable()
656 tegra_dsi_writel(dsi, 0, DSI_GANGED_MODE_SIZE); in tegra_dsi_ganged_disable()
657 tegra_dsi_writel(dsi, 0, DSI_GANGED_MODE_CONTROL); in tegra_dsi_ganged_disable()
660 static int tegra_dsi_pad_enable(struct tegra_dsi *dsi) in tegra_dsi_pad_enable() argument
665 tegra_dsi_writel(dsi, value, DSI_PAD_CONTROL_0); in tegra_dsi_pad_enable()
670 static int tegra_dsi_pad_calibrate(struct tegra_dsi *dsi) in tegra_dsi_pad_calibrate() argument
679 tegra_dsi_writel(dsi, 0, DSI_PAD_CONTROL_0); in tegra_dsi_pad_calibrate()
680 tegra_dsi_writel(dsi, 0, DSI_PAD_CONTROL_1); in tegra_dsi_pad_calibrate()
681 tegra_dsi_writel(dsi, 0, DSI_PAD_CONTROL_2); in tegra_dsi_pad_calibrate()
682 tegra_dsi_writel(dsi, 0, DSI_PAD_CONTROL_3); in tegra_dsi_pad_calibrate()
683 tegra_dsi_writel(dsi, 0, DSI_PAD_CONTROL_4); in tegra_dsi_pad_calibrate()
686 tegra_dsi_pad_enable(dsi); in tegra_dsi_pad_calibrate()
691 tegra_dsi_writel(dsi, value, DSI_PAD_CONTROL_2); in tegra_dsi_pad_calibrate()
695 tegra_dsi_writel(dsi, value, DSI_PAD_CONTROL_3); in tegra_dsi_pad_calibrate()
697 err = tegra_mipi_start_calibration(dsi->mipi); in tegra_dsi_pad_calibrate()
701 return tegra_mipi_finish_calibration(dsi->mipi); in tegra_dsi_pad_calibrate()
704 static void tegra_dsi_set_timeout(struct tegra_dsi *dsi, unsigned long bclk, in tegra_dsi_set_timeout() argument
713 tegra_dsi_writel(dsi, value, DSI_TIMEOUT_0); in tegra_dsi_set_timeout()
718 tegra_dsi_writel(dsi, value, DSI_TIMEOUT_1); in tegra_dsi_set_timeout()
721 tegra_dsi_writel(dsi, value, DSI_TO_TALLY); in tegra_dsi_set_timeout()
723 if (dsi->slave) in tegra_dsi_set_timeout()
724 tegra_dsi_set_timeout(dsi->slave, bclk, vrefresh); in tegra_dsi_set_timeout()
727 static void tegra_dsi_disable(struct tegra_dsi *dsi) in tegra_dsi_disable() argument
731 if (dsi->slave) { in tegra_dsi_disable()
732 tegra_dsi_ganged_disable(dsi->slave); in tegra_dsi_disable()
733 tegra_dsi_ganged_disable(dsi); in tegra_dsi_disable()
736 value = tegra_dsi_readl(dsi, DSI_POWER_CONTROL); in tegra_dsi_disable()
738 tegra_dsi_writel(dsi, value, DSI_POWER_CONTROL); in tegra_dsi_disable()
740 if (dsi->slave) in tegra_dsi_disable()
741 tegra_dsi_disable(dsi->slave); in tegra_dsi_disable()
746 static void tegra_dsi_soft_reset(struct tegra_dsi *dsi) in tegra_dsi_soft_reset() argument
750 value = tegra_dsi_readl(dsi, DSI_POWER_CONTROL); in tegra_dsi_soft_reset()
752 tegra_dsi_writel(dsi, value, DSI_POWER_CONTROL); in tegra_dsi_soft_reset()
756 value = tegra_dsi_readl(dsi, DSI_POWER_CONTROL); in tegra_dsi_soft_reset()
758 tegra_dsi_writel(dsi, value, DSI_POWER_CONTROL); in tegra_dsi_soft_reset()
762 value = tegra_dsi_readl(dsi, DSI_TRIGGER); in tegra_dsi_soft_reset()
764 tegra_dsi_writel(dsi, 0, DSI_TRIGGER); in tegra_dsi_soft_reset()
766 if (dsi->slave) in tegra_dsi_soft_reset()
767 tegra_dsi_soft_reset(dsi->slave); in tegra_dsi_soft_reset()
824 static void tegra_dsi_unprepare(struct tegra_dsi *dsi) in tegra_dsi_unprepare() argument
828 if (dsi->slave) in tegra_dsi_unprepare()
829 tegra_dsi_unprepare(dsi->slave); in tegra_dsi_unprepare()
831 err = tegra_mipi_disable(dsi->mipi); in tegra_dsi_unprepare()
833 dev_err(dsi->dev, "failed to disable MIPI calibration: %d\n", in tegra_dsi_unprepare()
836 err = host1x_client_suspend(&dsi->client); in tegra_dsi_unprepare()
838 dev_err(dsi->dev, "failed to suspend: %d\n", err); in tegra_dsi_unprepare()
845 struct tegra_dsi *dsi = to_dsi(output); in tegra_dsi_encoder_disable() local
852 tegra_dsi_video_disable(dsi); in tegra_dsi_encoder_disable()
866 err = tegra_dsi_wait_idle(dsi, 100); in tegra_dsi_encoder_disable()
868 dev_dbg(dsi->dev, "failed to idle DSI: %d\n", err); in tegra_dsi_encoder_disable()
870 tegra_dsi_soft_reset(dsi); in tegra_dsi_encoder_disable()
875 tegra_dsi_disable(dsi); in tegra_dsi_encoder_disable()
877 tegra_dsi_unprepare(dsi); in tegra_dsi_encoder_disable()
880 static int tegra_dsi_prepare(struct tegra_dsi *dsi) in tegra_dsi_prepare() argument
884 err = host1x_client_resume(&dsi->client); in tegra_dsi_prepare()
886 dev_err(dsi->dev, "failed to resume: %d\n", err); in tegra_dsi_prepare()
890 err = tegra_mipi_enable(dsi->mipi); in tegra_dsi_prepare()
892 dev_err(dsi->dev, "failed to enable MIPI calibration: %d\n", in tegra_dsi_prepare()
895 err = tegra_dsi_pad_calibrate(dsi); in tegra_dsi_prepare()
897 dev_err(dsi->dev, "MIPI calibration failed: %d\n", err); in tegra_dsi_prepare()
899 if (dsi->slave) in tegra_dsi_prepare()
900 tegra_dsi_prepare(dsi->slave); in tegra_dsi_prepare()
910 struct tegra_dsi *dsi = to_dsi(output); in tegra_dsi_encoder_enable() local
915 /* If the bootloader enabled DSI it needs to be disabled in tegra_dsi_encoder_enable()
919 value = tegra_dsi_readl(dsi, DSI_POWER_CONTROL); in tegra_dsi_encoder_enable()
922 tegra_dsi_disable(dsi); in tegra_dsi_encoder_enable()
924 err = tegra_dsi_prepare(dsi); in tegra_dsi_encoder_enable()
926 dev_err(dsi->dev, "failed to prepare: %d\n", err); in tegra_dsi_encoder_enable()
930 state = tegra_dsi_get_state(dsi); in tegra_dsi_encoder_enable()
932 tegra_dsi_set_timeout(dsi, state->bclk, state->vrefresh); in tegra_dsi_encoder_enable()
938 tegra_dsi_set_phy_timing(dsi, state->period * 8, &state->timing); in tegra_dsi_encoder_enable()
943 tegra_dsi_configure(dsi, dc->pipe, mode); in tegra_dsi_encoder_enable()
952 /* enable DSI controller */ in tegra_dsi_encoder_enable()
953 tegra_dsi_enable(dsi); in tegra_dsi_encoder_enable()
967 struct tegra_dsi *dsi = to_dsi(output); in tegra_dsi_encoder_atomic_check() local
974 err = tegra_dsi_get_muldiv(dsi->format, &state->mul, &state->div); in tegra_dsi_encoder_atomic_check()
978 state->lanes = tegra_dsi_get_lanes(dsi); in tegra_dsi_encoder_atomic_check()
980 err = tegra_dsi_get_format(dsi->format, &state->format); in tegra_dsi_encoder_atomic_check()
1007 dev_err(dsi->dev, "failed to validate D-PHY timing: %d\n", err); in tegra_dsi_encoder_atomic_check()
1030 err = tegra_dc_state_setup_clock(dc, crtc_state, dsi->clk_parent, in tegra_dsi_encoder_atomic_check()
1049 struct tegra_dsi *dsi = host1x_client_to_dsi(client); in tegra_dsi_init() local
1053 if (!dsi->master) { in tegra_dsi_init()
1054 dsi->output.dev = client->dev; in tegra_dsi_init()
1056 drm_connector_init(drm, &dsi->output.connector, in tegra_dsi_init()
1059 drm_connector_helper_add(&dsi->output.connector, in tegra_dsi_init()
1061 dsi->output.connector.dpms = DRM_MODE_DPMS_OFF; in tegra_dsi_init()
1063 drm_simple_encoder_init(drm, &dsi->output.encoder, in tegra_dsi_init()
1065 drm_encoder_helper_add(&dsi->output.encoder, in tegra_dsi_init()
1068 drm_connector_attach_encoder(&dsi->output.connector, in tegra_dsi_init()
1069 &dsi->output.encoder); in tegra_dsi_init()
1070 drm_connector_register(&dsi->output.connector); in tegra_dsi_init()
1072 err = tegra_output_init(drm, &dsi->output); in tegra_dsi_init()
1074 dev_err(dsi->dev, "failed to initialize output: %d\n", in tegra_dsi_init()
1077 dsi->output.encoder.possible_crtcs = 0x3; in tegra_dsi_init()
1085 struct tegra_dsi *dsi = host1x_client_to_dsi(client); in tegra_dsi_exit() local
1087 tegra_output_exit(&dsi->output); in tegra_dsi_exit()
1094 struct tegra_dsi *dsi = host1x_client_to_dsi(client); in tegra_dsi_runtime_suspend() local
1098 if (dsi->rst) { in tegra_dsi_runtime_suspend()
1099 err = reset_control_assert(dsi->rst); in tegra_dsi_runtime_suspend()
1108 clk_disable_unprepare(dsi->clk_lp); in tegra_dsi_runtime_suspend()
1109 clk_disable_unprepare(dsi->clk); in tegra_dsi_runtime_suspend()
1111 regulator_disable(dsi->vdd); in tegra_dsi_runtime_suspend()
1119 struct tegra_dsi *dsi = host1x_client_to_dsi(client); in tegra_dsi_runtime_resume() local
1129 err = regulator_enable(dsi->vdd); in tegra_dsi_runtime_resume()
1135 err = clk_prepare_enable(dsi->clk); in tegra_dsi_runtime_resume()
1137 dev_err(dev, "cannot enable DSI clock: %d\n", err); in tegra_dsi_runtime_resume()
1141 err = clk_prepare_enable(dsi->clk_lp); in tegra_dsi_runtime_resume()
1149 if (dsi->rst) { in tegra_dsi_runtime_resume()
1150 err = reset_control_deassert(dsi->rst); in tegra_dsi_runtime_resume()
1160 clk_disable_unprepare(dsi->clk_lp); in tegra_dsi_runtime_resume()
1162 clk_disable_unprepare(dsi->clk); in tegra_dsi_runtime_resume()
1164 regulator_disable(dsi->vdd); in tegra_dsi_runtime_resume()
1177 static int tegra_dsi_setup_clocks(struct tegra_dsi *dsi) in tegra_dsi_setup_clocks() argument
1182 parent = clk_get_parent(dsi->clk); in tegra_dsi_setup_clocks()
1186 err = clk_set_parent(parent, dsi->clk_parent); in tegra_dsi_setup_clocks()
1205 "DSI Data Type Not Recognized",
1206 "DSI VC ID Invalid",
1209 "DSI Protocol Violation",
1212 static ssize_t tegra_dsi_read_response(struct tegra_dsi *dsi, in tegra_dsi_read_response() argument
1223 value = tegra_dsi_readl(dsi, DSI_RD_DATA); in tegra_dsi_read_response()
1228 dev_dbg(dsi->dev, "Acknowledge and error report: %04x\n", in tegra_dsi_read_response()
1232 dev_dbg(dsi->dev, " %2u: %s\n", i, in tegra_dsi_read_response()
1256 dev_err(dsi->dev, "unhandled response type: %02x\n", in tegra_dsi_read_response()
1267 value = tegra_dsi_readl(dsi, DSI_RD_DATA); in tegra_dsi_read_response()
1277 static int tegra_dsi_transmit(struct tegra_dsi *dsi, unsigned long timeout) in tegra_dsi_transmit() argument
1279 tegra_dsi_writel(dsi, DSI_TRIGGER_HOST, DSI_TRIGGER); in tegra_dsi_transmit()
1284 u32 value = tegra_dsi_readl(dsi, DSI_TRIGGER); in tegra_dsi_transmit()
1295 static int tegra_dsi_wait_for_response(struct tegra_dsi *dsi, in tegra_dsi_wait_for_response() argument
1301 u32 value = tegra_dsi_readl(dsi, DSI_STATUS); in tegra_dsi_wait_for_response()
1314 static void tegra_dsi_writesl(struct tegra_dsi *dsi, unsigned long offset, in tegra_dsi_writesl() argument
1327 tegra_dsi_writel(dsi, value, DSI_WR_DATA); in tegra_dsi_writesl()
1334 struct tegra_dsi *dsi = host_to_tegra(host); in tegra_dsi_host_transfer() local
1348 if (packet.size > dsi->video_fifo_depth * 4) in tegra_dsi_host_transfer()
1352 value = tegra_dsi_readl(dsi, DSI_STATUS); in tegra_dsi_host_transfer()
1355 tegra_dsi_writel(dsi, value, DSI_HOST_CONTROL); in tegra_dsi_host_transfer()
1359 value = tegra_dsi_readl(dsi, DSI_POWER_CONTROL); in tegra_dsi_host_transfer()
1361 tegra_dsi_writel(dsi, value, DSI_POWER_CONTROL); in tegra_dsi_host_transfer()
1375 if (packet.size > dsi->host_fifo_depth * 4) in tegra_dsi_host_transfer()
1378 tegra_dsi_writel(dsi, value, DSI_HOST_CONTROL); in tegra_dsi_host_transfer()
1386 value = tegra_dsi_readl(dsi, DSI_HOST_CONTROL); in tegra_dsi_host_transfer()
1388 tegra_dsi_writel(dsi, value, DSI_HOST_CONTROL); in tegra_dsi_host_transfer()
1392 tegra_dsi_writel(dsi, value, DSI_CONTROL); in tegra_dsi_host_transfer()
1396 tegra_dsi_writel(dsi, value, DSI_WR_DATA); in tegra_dsi_host_transfer()
1400 tegra_dsi_writesl(dsi, DSI_WR_DATA, packet.payload, in tegra_dsi_host_transfer()
1403 err = tegra_dsi_transmit(dsi, 250); in tegra_dsi_host_transfer()
1409 err = tegra_dsi_wait_for_response(dsi, 250); in tegra_dsi_host_transfer()
1415 value = tegra_dsi_readl(dsi, DSI_RD_DATA); in tegra_dsi_host_transfer()
1419 dev_dbg(dsi->dev, "ACK\n"); in tegra_dsi_host_transfer()
1425 dev_dbg(dsi->dev, "ESCAPE\n"); in tegra_dsi_host_transfer()
1430 dev_err(dsi->dev, "unknown status: %08x\n", value); in tegra_dsi_host_transfer()
1435 err = tegra_dsi_read_response(dsi, msg, count); in tegra_dsi_host_transfer()
1437 dev_err(dsi->dev, in tegra_dsi_host_transfer()
1459 static int tegra_dsi_ganged_setup(struct tegra_dsi *dsi) in tegra_dsi_ganged_setup() argument
1464 /* make sure both DSI controllers share the same PLL */ in tegra_dsi_ganged_setup()
1465 parent = clk_get_parent(dsi->slave->clk); in tegra_dsi_ganged_setup()
1469 err = clk_set_parent(parent, dsi->clk_parent); in tegra_dsi_ganged_setup()
1479 struct tegra_dsi *dsi = host_to_tegra(host); in tegra_dsi_host_attach() local
1481 dsi->flags = device->mode_flags; in tegra_dsi_host_attach()
1482 dsi->format = device->format; in tegra_dsi_host_attach()
1483 dsi->lanes = device->lanes; in tegra_dsi_host_attach()
1485 if (dsi->slave) { in tegra_dsi_host_attach()
1488 dev_dbg(dsi->dev, "attaching dual-channel device %s\n", in tegra_dsi_host_attach()
1491 err = tegra_dsi_ganged_setup(dsi); in tegra_dsi_host_attach()
1493 dev_err(dsi->dev, "failed to set up ganged mode: %d\n", in tegra_dsi_host_attach()
1503 if (!dsi->master) { in tegra_dsi_host_attach()
1504 struct tegra_output *output = &dsi->output; in tegra_dsi_host_attach()
1520 struct tegra_dsi *dsi = host_to_tegra(host); in tegra_dsi_host_detach() local
1521 struct tegra_output *output = &dsi->output; in tegra_dsi_host_detach()
1539 static int tegra_dsi_ganged_probe(struct tegra_dsi *dsi) in tegra_dsi_ganged_probe() argument
1543 np = of_parse_phandle(dsi->dev->of_node, "nvidia,ganged-mode", 0); in tegra_dsi_ganged_probe()
1550 dsi->slave = platform_get_drvdata(gangster); in tegra_dsi_ganged_probe()
1552 if (!dsi->slave) { in tegra_dsi_ganged_probe()
1557 dsi->slave->master = dsi; in tegra_dsi_ganged_probe()
1565 struct tegra_dsi *dsi; in tegra_dsi_probe() local
1569 dsi = devm_kzalloc(&pdev->dev, sizeof(*dsi), GFP_KERNEL); in tegra_dsi_probe()
1570 if (!dsi) in tegra_dsi_probe()
1573 dsi->output.dev = dsi->dev = &pdev->dev; in tegra_dsi_probe()
1574 dsi->video_fifo_depth = 1920; in tegra_dsi_probe()
1575 dsi->host_fifo_depth = 64; in tegra_dsi_probe()
1577 err = tegra_dsi_ganged_probe(dsi); in tegra_dsi_probe()
1581 err = tegra_output_probe(&dsi->output); in tegra_dsi_probe()
1585 dsi->output.connector.polled = DRM_CONNECTOR_POLL_HPD; in tegra_dsi_probe()
1588 * Assume these values by default. When a DSI peripheral driver in tegra_dsi_probe()
1589 * attaches to the DSI host, the parameters will be taken from in tegra_dsi_probe()
1592 dsi->flags = MIPI_DSI_MODE_VIDEO; in tegra_dsi_probe()
1593 dsi->format = MIPI_DSI_FMT_RGB888; in tegra_dsi_probe()
1594 dsi->lanes = 4; in tegra_dsi_probe()
1597 dsi->rst = devm_reset_control_get(&pdev->dev, "dsi"); in tegra_dsi_probe()
1598 if (IS_ERR(dsi->rst)) { in tegra_dsi_probe()
1599 err = PTR_ERR(dsi->rst); in tegra_dsi_probe()
1604 dsi->clk = devm_clk_get(&pdev->dev, NULL); in tegra_dsi_probe()
1605 if (IS_ERR(dsi->clk)) { in tegra_dsi_probe()
1606 err = dev_err_probe(&pdev->dev, PTR_ERR(dsi->clk), in tegra_dsi_probe()
1607 "cannot get DSI clock\n"); in tegra_dsi_probe()
1611 dsi->clk_lp = devm_clk_get(&pdev->dev, "lp"); in tegra_dsi_probe()
1612 if (IS_ERR(dsi->clk_lp)) { in tegra_dsi_probe()
1613 err = dev_err_probe(&pdev->dev, PTR_ERR(dsi->clk_lp), in tegra_dsi_probe()
1618 dsi->clk_parent = devm_clk_get(&pdev->dev, "parent"); in tegra_dsi_probe()
1619 if (IS_ERR(dsi->clk_parent)) { in tegra_dsi_probe()
1620 err = dev_err_probe(&pdev->dev, PTR_ERR(dsi->clk_parent), in tegra_dsi_probe()
1625 dsi->vdd = devm_regulator_get(&pdev->dev, "avdd-dsi-csi"); in tegra_dsi_probe()
1626 if (IS_ERR(dsi->vdd)) { in tegra_dsi_probe()
1627 err = dev_err_probe(&pdev->dev, PTR_ERR(dsi->vdd), in tegra_dsi_probe()
1632 err = tegra_dsi_setup_clocks(dsi); in tegra_dsi_probe()
1639 dsi->regs = devm_ioremap_resource(&pdev->dev, regs); in tegra_dsi_probe()
1640 if (IS_ERR(dsi->regs)) { in tegra_dsi_probe()
1641 err = PTR_ERR(dsi->regs); in tegra_dsi_probe()
1645 dsi->mipi = tegra_mipi_request(&pdev->dev, pdev->dev.of_node); in tegra_dsi_probe()
1646 if (IS_ERR(dsi->mipi)) { in tegra_dsi_probe()
1647 err = PTR_ERR(dsi->mipi); in tegra_dsi_probe()
1651 dsi->host.ops = &tegra_dsi_host_ops; in tegra_dsi_probe()
1652 dsi->host.dev = &pdev->dev; in tegra_dsi_probe()
1654 err = mipi_dsi_host_register(&dsi->host); in tegra_dsi_probe()
1656 dev_err(&pdev->dev, "failed to register DSI host: %d\n", err); in tegra_dsi_probe()
1660 platform_set_drvdata(pdev, dsi); in tegra_dsi_probe()
1663 INIT_LIST_HEAD(&dsi->client.list); in tegra_dsi_probe()
1664 dsi->client.ops = &dsi_client_ops; in tegra_dsi_probe()
1665 dsi->client.dev = &pdev->dev; in tegra_dsi_probe()
1667 err = host1x_client_register(&dsi->client); in tegra_dsi_probe()
1678 mipi_dsi_host_unregister(&dsi->host); in tegra_dsi_probe()
1680 tegra_mipi_free(dsi->mipi); in tegra_dsi_probe()
1682 tegra_output_remove(&dsi->output); in tegra_dsi_probe()
1688 struct tegra_dsi *dsi = platform_get_drvdata(pdev); in tegra_dsi_remove() local
1692 host1x_client_unregister(&dsi->client); in tegra_dsi_remove()
1694 tegra_output_remove(&dsi->output); in tegra_dsi_remove()
1696 mipi_dsi_host_unregister(&dsi->host); in tegra_dsi_remove()
1697 tegra_mipi_free(dsi->mipi); in tegra_dsi_remove()
1701 { .compatible = "nvidia,tegra210-dsi", },
1702 { .compatible = "nvidia,tegra132-dsi", },
1703 { .compatible = "nvidia,tegra124-dsi", },
1704 { .compatible = "nvidia,tegra114-dsi", },
1711 .name = "tegra-dsi",