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()
261 kfree(dsi->debugfs_files); in tegra_dsi_early_unregister()
262 dsi->debugfs_files = NULL; in tegra_dsi_early_unregister()
358 static void tegra_dsi_set_phy_timing(struct tegra_dsi *dsi, in tegra_dsi_set_phy_timing() argument
368 tegra_dsi_writel(dsi, value, DSI_PHY_TIMING_0); in tegra_dsi_set_phy_timing()
374 tegra_dsi_writel(dsi, value, DSI_PHY_TIMING_1); in tegra_dsi_set_phy_timing()
379 tegra_dsi_writel(dsi, value, DSI_PHY_TIMING_2); in tegra_dsi_set_phy_timing()
384 tegra_dsi_writel(dsi, value, DSI_BTA_TIMING); in tegra_dsi_set_phy_timing()
386 if (dsi->slave) in tegra_dsi_set_phy_timing()
387 tegra_dsi_set_phy_timing(dsi->slave, period, timing); in tegra_dsi_set_phy_timing()
444 static void tegra_dsi_ganged_enable(struct tegra_dsi *dsi, unsigned int start, in tegra_dsi_ganged_enable() argument
449 tegra_dsi_writel(dsi, start, DSI_GANGED_MODE_START); in tegra_dsi_ganged_enable()
450 tegra_dsi_writel(dsi, size << 16 | size, DSI_GANGED_MODE_SIZE); in tegra_dsi_ganged_enable()
453 tegra_dsi_writel(dsi, value, DSI_GANGED_MODE_CONTROL); in tegra_dsi_ganged_enable()
456 static void tegra_dsi_enable(struct tegra_dsi *dsi) in tegra_dsi_enable() argument
460 value = tegra_dsi_readl(dsi, DSI_POWER_CONTROL); in tegra_dsi_enable()
462 tegra_dsi_writel(dsi, value, DSI_POWER_CONTROL); in tegra_dsi_enable()
464 if (dsi->slave) in tegra_dsi_enable()
465 tegra_dsi_enable(dsi->slave); in tegra_dsi_enable()
468 static unsigned int tegra_dsi_get_lanes(struct tegra_dsi *dsi) in tegra_dsi_get_lanes() argument
470 if (dsi->master) in tegra_dsi_get_lanes()
471 return dsi->master->lanes + dsi->lanes; in tegra_dsi_get_lanes()
473 if (dsi->slave) in tegra_dsi_get_lanes()
474 return dsi->lanes + dsi->slave->lanes; in tegra_dsi_get_lanes()
476 return dsi->lanes; in tegra_dsi_get_lanes()
479 static void tegra_dsi_configure(struct tegra_dsi *dsi, unsigned int pipe, in tegra_dsi_configure() argument
488 if (dsi->master) in tegra_dsi_configure()
489 state = tegra_dsi_get_state(dsi->master); in tegra_dsi_configure()
491 state = tegra_dsi_get_state(dsi); in tegra_dsi_configure()
496 if (dsi->flags & MIPI_DSI_MODE_VIDEO_SYNC_PULSE) { in tegra_dsi_configure()
499 } else if (dsi->flags & MIPI_DSI_MODE_VIDEO) { in tegra_dsi_configure()
509 DSI_CONTROL_LANES(dsi->lanes - 1) | in tegra_dsi_configure()
511 tegra_dsi_writel(dsi, value, DSI_CONTROL); in tegra_dsi_configure()
513 tegra_dsi_writel(dsi, dsi->video_fifo_depth, DSI_MAX_THRESHOLD); in tegra_dsi_configure()
516 tegra_dsi_writel(dsi, value, DSI_HOST_CONTROL); in tegra_dsi_configure()
518 value = tegra_dsi_readl(dsi, DSI_CONTROL); in tegra_dsi_configure()
520 if (dsi->flags & MIPI_DSI_CLOCK_NON_CONTINUOUS) in tegra_dsi_configure()
526 if (dsi->flags & MIPI_DSI_MODE_VIDEO) in tegra_dsi_configure()
533 tegra_dsi_writel(dsi, value, DSI_CONTROL); in tegra_dsi_configure()
536 tegra_dsi_writel(dsi, pkt_seq[i], DSI_PKT_SEQ_0_LO + i); in tegra_dsi_configure()
538 if (dsi->flags & MIPI_DSI_MODE_VIDEO) { in tegra_dsi_configure()
548 if ((dsi->flags & MIPI_DSI_MODE_VIDEO_SYNC_PULSE) == 0) in tegra_dsi_configure()
559 tegra_dsi_writel(dsi, hsw << 16 | 0, DSI_PKT_LEN_0_1); in tegra_dsi_configure()
560 tegra_dsi_writel(dsi, hact << 16 | hbp, DSI_PKT_LEN_2_3); in tegra_dsi_configure()
561 tegra_dsi_writel(dsi, hfp, DSI_PKT_LEN_4_5); in tegra_dsi_configure()
562 tegra_dsi_writel(dsi, 0x0f0f << 16, DSI_PKT_LEN_6_7); in tegra_dsi_configure()
565 tegra_dsi_writel(dsi, 8 * mul / div, DSI_SOL_DELAY); in tegra_dsi_configure()
571 if (dsi->master || dsi->slave) { in tegra_dsi_configure()
581 tegra_dsi_writel(dsi, 0, DSI_PKT_LEN_0_1); in tegra_dsi_configure()
582 tegra_dsi_writel(dsi, bytes << 16, DSI_PKT_LEN_2_3); in tegra_dsi_configure()
583 tegra_dsi_writel(dsi, bytes << 16, DSI_PKT_LEN_4_5); in tegra_dsi_configure()
584 tegra_dsi_writel(dsi, 0, DSI_PKT_LEN_6_7); in tegra_dsi_configure()
588 tegra_dsi_writel(dsi, value, DSI_DCS_CMDS); in tegra_dsi_configure()
591 if (dsi->master || dsi->slave) { in tegra_dsi_configure()
609 tegra_dsi_writel(dsi, value, DSI_SOL_DELAY); in tegra_dsi_configure()
612 if (dsi->slave) { in tegra_dsi_configure()
613 tegra_dsi_configure(dsi->slave, pipe, mode); in tegra_dsi_configure()
619 tegra_dsi_ganged_enable(dsi, 0, mode->hdisplay / 2); in tegra_dsi_configure()
620 tegra_dsi_ganged_enable(dsi->slave, mode->hdisplay / 2, in tegra_dsi_configure()
625 static int tegra_dsi_wait_idle(struct tegra_dsi *dsi, unsigned long timeout) in tegra_dsi_wait_idle() argument
632 value = tegra_dsi_readl(dsi, DSI_STATUS); in tegra_dsi_wait_idle()
642 static void tegra_dsi_video_disable(struct tegra_dsi *dsi) in tegra_dsi_video_disable() argument
646 value = tegra_dsi_readl(dsi, DSI_CONTROL); in tegra_dsi_video_disable()
648 tegra_dsi_writel(dsi, value, DSI_CONTROL); in tegra_dsi_video_disable()
650 if (dsi->slave) in tegra_dsi_video_disable()
651 tegra_dsi_video_disable(dsi->slave); in tegra_dsi_video_disable()
654 static void tegra_dsi_ganged_disable(struct tegra_dsi *dsi) in tegra_dsi_ganged_disable() argument
656 tegra_dsi_writel(dsi, 0, DSI_GANGED_MODE_START); in tegra_dsi_ganged_disable()
657 tegra_dsi_writel(dsi, 0, DSI_GANGED_MODE_SIZE); in tegra_dsi_ganged_disable()
658 tegra_dsi_writel(dsi, 0, DSI_GANGED_MODE_CONTROL); in tegra_dsi_ganged_disable()
661 static int tegra_dsi_pad_enable(struct tegra_dsi *dsi) in tegra_dsi_pad_enable() argument
666 tegra_dsi_writel(dsi, value, DSI_PAD_CONTROL_0); in tegra_dsi_pad_enable()
671 static int tegra_dsi_pad_calibrate(struct tegra_dsi *dsi) in tegra_dsi_pad_calibrate() argument
680 tegra_dsi_writel(dsi, 0, DSI_PAD_CONTROL_0); in tegra_dsi_pad_calibrate()
681 tegra_dsi_writel(dsi, 0, DSI_PAD_CONTROL_1); in tegra_dsi_pad_calibrate()
682 tegra_dsi_writel(dsi, 0, DSI_PAD_CONTROL_2); in tegra_dsi_pad_calibrate()
683 tegra_dsi_writel(dsi, 0, DSI_PAD_CONTROL_3); in tegra_dsi_pad_calibrate()
684 tegra_dsi_writel(dsi, 0, DSI_PAD_CONTROL_4); in tegra_dsi_pad_calibrate()
687 tegra_dsi_pad_enable(dsi); in tegra_dsi_pad_calibrate()
692 tegra_dsi_writel(dsi, value, DSI_PAD_CONTROL_2); in tegra_dsi_pad_calibrate()
696 tegra_dsi_writel(dsi, value, DSI_PAD_CONTROL_3); in tegra_dsi_pad_calibrate()
698 err = tegra_mipi_start_calibration(dsi->mipi); in tegra_dsi_pad_calibrate()
702 return tegra_mipi_finish_calibration(dsi->mipi); in tegra_dsi_pad_calibrate()
705 static void tegra_dsi_set_timeout(struct tegra_dsi *dsi, unsigned long bclk, in tegra_dsi_set_timeout() argument
714 tegra_dsi_writel(dsi, value, DSI_TIMEOUT_0); in tegra_dsi_set_timeout()
719 tegra_dsi_writel(dsi, value, DSI_TIMEOUT_1); in tegra_dsi_set_timeout()
722 tegra_dsi_writel(dsi, value, DSI_TO_TALLY); in tegra_dsi_set_timeout()
724 if (dsi->slave) in tegra_dsi_set_timeout()
725 tegra_dsi_set_timeout(dsi->slave, bclk, vrefresh); in tegra_dsi_set_timeout()
728 static void tegra_dsi_disable(struct tegra_dsi *dsi) in tegra_dsi_disable() argument
732 if (dsi->slave) { in tegra_dsi_disable()
733 tegra_dsi_ganged_disable(dsi->slave); in tegra_dsi_disable()
734 tegra_dsi_ganged_disable(dsi); in tegra_dsi_disable()
737 value = tegra_dsi_readl(dsi, DSI_POWER_CONTROL); in tegra_dsi_disable()
739 tegra_dsi_writel(dsi, value, DSI_POWER_CONTROL); in tegra_dsi_disable()
741 if (dsi->slave) in tegra_dsi_disable()
742 tegra_dsi_disable(dsi->slave); in tegra_dsi_disable()
747 static void tegra_dsi_soft_reset(struct tegra_dsi *dsi) in tegra_dsi_soft_reset() argument
751 value = tegra_dsi_readl(dsi, DSI_POWER_CONTROL); in tegra_dsi_soft_reset()
753 tegra_dsi_writel(dsi, value, DSI_POWER_CONTROL); in tegra_dsi_soft_reset()
757 value = tegra_dsi_readl(dsi, DSI_POWER_CONTROL); in tegra_dsi_soft_reset()
759 tegra_dsi_writel(dsi, value, DSI_POWER_CONTROL); in tegra_dsi_soft_reset()
763 value = tegra_dsi_readl(dsi, DSI_TRIGGER); in tegra_dsi_soft_reset()
765 tegra_dsi_writel(dsi, 0, DSI_TRIGGER); in tegra_dsi_soft_reset()
767 if (dsi->slave) in tegra_dsi_soft_reset()
768 tegra_dsi_soft_reset(dsi->slave); in tegra_dsi_soft_reset()
825 static void tegra_dsi_unprepare(struct tegra_dsi *dsi) in tegra_dsi_unprepare() argument
829 if (dsi->slave) in tegra_dsi_unprepare()
830 tegra_dsi_unprepare(dsi->slave); in tegra_dsi_unprepare()
832 err = tegra_mipi_disable(dsi->mipi); in tegra_dsi_unprepare()
834 dev_err(dsi->dev, "failed to disable MIPI calibration: %d\n", in tegra_dsi_unprepare()
837 err = host1x_client_suspend(&dsi->client); in tegra_dsi_unprepare()
839 dev_err(dsi->dev, "failed to suspend: %d\n", err); in tegra_dsi_unprepare()
846 struct tegra_dsi *dsi = to_dsi(output); in tegra_dsi_encoder_disable() local
853 tegra_dsi_video_disable(dsi); in tegra_dsi_encoder_disable()
867 err = tegra_dsi_wait_idle(dsi, 100); in tegra_dsi_encoder_disable()
869 dev_dbg(dsi->dev, "failed to idle DSI: %d\n", err); in tegra_dsi_encoder_disable()
871 tegra_dsi_soft_reset(dsi); in tegra_dsi_encoder_disable()
876 tegra_dsi_disable(dsi); in tegra_dsi_encoder_disable()
878 tegra_dsi_unprepare(dsi); in tegra_dsi_encoder_disable()
881 static int tegra_dsi_prepare(struct tegra_dsi *dsi) in tegra_dsi_prepare() argument
885 err = host1x_client_resume(&dsi->client); in tegra_dsi_prepare()
887 dev_err(dsi->dev, "failed to resume: %d\n", err); in tegra_dsi_prepare()
891 err = tegra_mipi_enable(dsi->mipi); in tegra_dsi_prepare()
893 dev_err(dsi->dev, "failed to enable MIPI calibration: %d\n", in tegra_dsi_prepare()
896 err = tegra_dsi_pad_calibrate(dsi); in tegra_dsi_prepare()
898 dev_err(dsi->dev, "MIPI calibration failed: %d\n", err); in tegra_dsi_prepare()
900 if (dsi->slave) in tegra_dsi_prepare()
901 tegra_dsi_prepare(dsi->slave); in tegra_dsi_prepare()
911 struct tegra_dsi *dsi = to_dsi(output); in tegra_dsi_encoder_enable() local
916 /* If the bootloader enabled DSI it needs to be disabled in tegra_dsi_encoder_enable()
920 value = tegra_dsi_readl(dsi, DSI_POWER_CONTROL); in tegra_dsi_encoder_enable()
923 tegra_dsi_disable(dsi); in tegra_dsi_encoder_enable()
925 err = tegra_dsi_prepare(dsi); in tegra_dsi_encoder_enable()
927 dev_err(dsi->dev, "failed to prepare: %d\n", err); in tegra_dsi_encoder_enable()
931 state = tegra_dsi_get_state(dsi); in tegra_dsi_encoder_enable()
933 tegra_dsi_set_timeout(dsi, state->bclk, state->vrefresh); in tegra_dsi_encoder_enable()
939 tegra_dsi_set_phy_timing(dsi, state->period * 8, &state->timing); in tegra_dsi_encoder_enable()
944 tegra_dsi_configure(dsi, dc->pipe, mode); in tegra_dsi_encoder_enable()
953 /* enable DSI controller */ in tegra_dsi_encoder_enable()
954 tegra_dsi_enable(dsi); in tegra_dsi_encoder_enable()
968 struct tegra_dsi *dsi = to_dsi(output); in tegra_dsi_encoder_atomic_check() local
975 err = tegra_dsi_get_muldiv(dsi->format, &state->mul, &state->div); in tegra_dsi_encoder_atomic_check()
979 state->lanes = tegra_dsi_get_lanes(dsi); in tegra_dsi_encoder_atomic_check()
981 err = tegra_dsi_get_format(dsi->format, &state->format); in tegra_dsi_encoder_atomic_check()
1008 dev_err(dsi->dev, "failed to validate D-PHY timing: %d\n", err); in tegra_dsi_encoder_atomic_check()
1031 err = tegra_dc_state_setup_clock(dc, crtc_state, dsi->clk_parent, in tegra_dsi_encoder_atomic_check()
1050 struct tegra_dsi *dsi = host1x_client_to_dsi(client); in tegra_dsi_init() local
1054 if (!dsi->master) { in tegra_dsi_init()
1055 dsi->output.dev = client->dev; in tegra_dsi_init()
1057 drm_connector_init(drm, &dsi->output.connector, in tegra_dsi_init()
1060 drm_connector_helper_add(&dsi->output.connector, in tegra_dsi_init()
1062 dsi->output.connector.dpms = DRM_MODE_DPMS_OFF; in tegra_dsi_init()
1064 drm_simple_encoder_init(drm, &dsi->output.encoder, in tegra_dsi_init()
1066 drm_encoder_helper_add(&dsi->output.encoder, in tegra_dsi_init()
1069 drm_connector_attach_encoder(&dsi->output.connector, in tegra_dsi_init()
1070 &dsi->output.encoder); in tegra_dsi_init()
1071 drm_connector_register(&dsi->output.connector); in tegra_dsi_init()
1073 err = tegra_output_init(drm, &dsi->output); in tegra_dsi_init()
1075 dev_err(dsi->dev, "failed to initialize output: %d\n", in tegra_dsi_init()
1078 dsi->output.encoder.possible_crtcs = 0x3; in tegra_dsi_init()
1086 struct tegra_dsi *dsi = host1x_client_to_dsi(client); in tegra_dsi_exit() local
1088 tegra_output_exit(&dsi->output); in tegra_dsi_exit()
1095 struct tegra_dsi *dsi = host1x_client_to_dsi(client); in tegra_dsi_runtime_suspend() local
1099 if (dsi->rst) { in tegra_dsi_runtime_suspend()
1100 err = reset_control_assert(dsi->rst); in tegra_dsi_runtime_suspend()
1109 clk_disable_unprepare(dsi->clk_lp); in tegra_dsi_runtime_suspend()
1110 clk_disable_unprepare(dsi->clk); in tegra_dsi_runtime_suspend()
1112 regulator_disable(dsi->vdd); in tegra_dsi_runtime_suspend()
1120 struct tegra_dsi *dsi = host1x_client_to_dsi(client); in tegra_dsi_runtime_resume() local
1130 err = regulator_enable(dsi->vdd); in tegra_dsi_runtime_resume()
1136 err = clk_prepare_enable(dsi->clk); in tegra_dsi_runtime_resume()
1138 dev_err(dev, "cannot enable DSI clock: %d\n", err); in tegra_dsi_runtime_resume()
1142 err = clk_prepare_enable(dsi->clk_lp); in tegra_dsi_runtime_resume()
1150 if (dsi->rst) { in tegra_dsi_runtime_resume()
1151 err = reset_control_deassert(dsi->rst); in tegra_dsi_runtime_resume()
1161 clk_disable_unprepare(dsi->clk_lp); in tegra_dsi_runtime_resume()
1163 clk_disable_unprepare(dsi->clk); in tegra_dsi_runtime_resume()
1165 regulator_disable(dsi->vdd); in tegra_dsi_runtime_resume()
1178 static int tegra_dsi_setup_clocks(struct tegra_dsi *dsi) in tegra_dsi_setup_clocks() argument
1183 parent = clk_get_parent(dsi->clk); in tegra_dsi_setup_clocks()
1187 err = clk_set_parent(parent, dsi->clk_parent); in tegra_dsi_setup_clocks()
1206 "DSI Data Type Not Recognized",
1207 "DSI VC ID Invalid",
1210 "DSI Protocol Violation",
1213 static ssize_t tegra_dsi_read_response(struct tegra_dsi *dsi, in tegra_dsi_read_response() argument
1224 value = tegra_dsi_readl(dsi, DSI_RD_DATA); in tegra_dsi_read_response()
1229 dev_dbg(dsi->dev, "Acknowledge and error report: %04x\n", in tegra_dsi_read_response()
1233 dev_dbg(dsi->dev, " %2u: %s\n", i, in tegra_dsi_read_response()
1257 dev_err(dsi->dev, "unhandled response type: %02x\n", in tegra_dsi_read_response()
1268 value = tegra_dsi_readl(dsi, DSI_RD_DATA); in tegra_dsi_read_response()
1278 static int tegra_dsi_transmit(struct tegra_dsi *dsi, unsigned long timeout) in tegra_dsi_transmit() argument
1280 tegra_dsi_writel(dsi, DSI_TRIGGER_HOST, DSI_TRIGGER); in tegra_dsi_transmit()
1285 u32 value = tegra_dsi_readl(dsi, DSI_TRIGGER); in tegra_dsi_transmit()
1296 static int tegra_dsi_wait_for_response(struct tegra_dsi *dsi, in tegra_dsi_wait_for_response() argument
1302 u32 value = tegra_dsi_readl(dsi, DSI_STATUS); in tegra_dsi_wait_for_response()
1315 static void tegra_dsi_writesl(struct tegra_dsi *dsi, unsigned long offset, in tegra_dsi_writesl() argument
1328 tegra_dsi_writel(dsi, value, DSI_WR_DATA); in tegra_dsi_writesl()
1335 struct tegra_dsi *dsi = host_to_tegra(host); in tegra_dsi_host_transfer() local
1349 if (packet.size > dsi->video_fifo_depth * 4) in tegra_dsi_host_transfer()
1353 value = tegra_dsi_readl(dsi, DSI_STATUS); in tegra_dsi_host_transfer()
1356 tegra_dsi_writel(dsi, value, DSI_HOST_CONTROL); in tegra_dsi_host_transfer()
1360 value = tegra_dsi_readl(dsi, DSI_POWER_CONTROL); in tegra_dsi_host_transfer()
1362 tegra_dsi_writel(dsi, value, DSI_POWER_CONTROL); in tegra_dsi_host_transfer()
1376 if (packet.size > dsi->host_fifo_depth * 4) in tegra_dsi_host_transfer()
1379 tegra_dsi_writel(dsi, value, DSI_HOST_CONTROL); in tegra_dsi_host_transfer()
1387 value = tegra_dsi_readl(dsi, DSI_HOST_CONTROL); in tegra_dsi_host_transfer()
1389 tegra_dsi_writel(dsi, value, DSI_HOST_CONTROL); in tegra_dsi_host_transfer()
1393 tegra_dsi_writel(dsi, value, DSI_CONTROL); in tegra_dsi_host_transfer()
1397 tegra_dsi_writel(dsi, value, DSI_WR_DATA); in tegra_dsi_host_transfer()
1401 tegra_dsi_writesl(dsi, DSI_WR_DATA, packet.payload, in tegra_dsi_host_transfer()
1404 err = tegra_dsi_transmit(dsi, 250); in tegra_dsi_host_transfer()
1410 err = tegra_dsi_wait_for_response(dsi, 250); in tegra_dsi_host_transfer()
1416 value = tegra_dsi_readl(dsi, DSI_RD_DATA); in tegra_dsi_host_transfer()
1420 dev_dbg(dsi->dev, "ACK\n"); in tegra_dsi_host_transfer()
1426 dev_dbg(dsi->dev, "ESCAPE\n"); in tegra_dsi_host_transfer()
1431 dev_err(dsi->dev, "unknown status: %08x\n", value); in tegra_dsi_host_transfer()
1436 err = tegra_dsi_read_response(dsi, msg, count); in tegra_dsi_host_transfer()
1438 dev_err(dsi->dev, in tegra_dsi_host_transfer()
1460 static int tegra_dsi_ganged_setup(struct tegra_dsi *dsi) in tegra_dsi_ganged_setup() argument
1465 /* make sure both DSI controllers share the same PLL */ in tegra_dsi_ganged_setup()
1466 parent = clk_get_parent(dsi->slave->clk); in tegra_dsi_ganged_setup()
1470 err = clk_set_parent(parent, dsi->clk_parent); in tegra_dsi_ganged_setup()
1480 struct tegra_dsi *dsi = host_to_tegra(host); in tegra_dsi_host_attach() local
1482 dsi->flags = device->mode_flags; in tegra_dsi_host_attach()
1483 dsi->format = device->format; in tegra_dsi_host_attach()
1484 dsi->lanes = device->lanes; in tegra_dsi_host_attach()
1486 if (dsi->slave) { in tegra_dsi_host_attach()
1489 dev_dbg(dsi->dev, "attaching dual-channel device %s\n", in tegra_dsi_host_attach()
1492 err = tegra_dsi_ganged_setup(dsi); in tegra_dsi_host_attach()
1494 dev_err(dsi->dev, "failed to set up ganged mode: %d\n", in tegra_dsi_host_attach()
1504 if (!dsi->master) { in tegra_dsi_host_attach()
1505 struct tegra_output *output = &dsi->output; in tegra_dsi_host_attach()
1521 struct tegra_dsi *dsi = host_to_tegra(host); in tegra_dsi_host_detach() local
1522 struct tegra_output *output = &dsi->output; in tegra_dsi_host_detach()
1540 static int tegra_dsi_ganged_probe(struct tegra_dsi *dsi) in tegra_dsi_ganged_probe() argument
1544 np = of_parse_phandle(dsi->dev->of_node, "nvidia,ganged-mode", 0); in tegra_dsi_ganged_probe()
1551 dsi->slave = platform_get_drvdata(gangster); in tegra_dsi_ganged_probe()
1553 if (!dsi->slave) { in tegra_dsi_ganged_probe()
1558 dsi->slave->master = dsi; in tegra_dsi_ganged_probe()
1566 struct tegra_dsi *dsi; in tegra_dsi_probe() local
1570 dsi = devm_kzalloc(&pdev->dev, sizeof(*dsi), GFP_KERNEL); in tegra_dsi_probe()
1571 if (!dsi) in tegra_dsi_probe()
1574 dsi->output.dev = dsi->dev = &pdev->dev; in tegra_dsi_probe()
1575 dsi->video_fifo_depth = 1920; in tegra_dsi_probe()
1576 dsi->host_fifo_depth = 64; in tegra_dsi_probe()
1578 err = tegra_dsi_ganged_probe(dsi); in tegra_dsi_probe()
1582 err = tegra_output_probe(&dsi->output); in tegra_dsi_probe()
1586 dsi->output.connector.polled = DRM_CONNECTOR_POLL_HPD; in tegra_dsi_probe()
1589 * Assume these values by default. When a DSI peripheral driver in tegra_dsi_probe()
1590 * attaches to the DSI host, the parameters will be taken from in tegra_dsi_probe()
1593 dsi->flags = MIPI_DSI_MODE_VIDEO; in tegra_dsi_probe()
1594 dsi->format = MIPI_DSI_FMT_RGB888; in tegra_dsi_probe()
1595 dsi->lanes = 4; in tegra_dsi_probe()
1598 dsi->rst = devm_reset_control_get(&pdev->dev, "dsi"); in tegra_dsi_probe()
1599 if (IS_ERR(dsi->rst)) { in tegra_dsi_probe()
1600 err = PTR_ERR(dsi->rst); in tegra_dsi_probe()
1605 dsi->clk = devm_clk_get(&pdev->dev, NULL); in tegra_dsi_probe()
1606 if (IS_ERR(dsi->clk)) { in tegra_dsi_probe()
1607 err = dev_err_probe(&pdev->dev, PTR_ERR(dsi->clk), in tegra_dsi_probe()
1608 "cannot get DSI clock\n"); in tegra_dsi_probe()
1612 dsi->clk_lp = devm_clk_get(&pdev->dev, "lp"); in tegra_dsi_probe()
1613 if (IS_ERR(dsi->clk_lp)) { in tegra_dsi_probe()
1614 err = dev_err_probe(&pdev->dev, PTR_ERR(dsi->clk_lp), in tegra_dsi_probe()
1619 dsi->clk_parent = devm_clk_get(&pdev->dev, "parent"); in tegra_dsi_probe()
1620 if (IS_ERR(dsi->clk_parent)) { in tegra_dsi_probe()
1621 err = dev_err_probe(&pdev->dev, PTR_ERR(dsi->clk_parent), in tegra_dsi_probe()
1626 dsi->vdd = devm_regulator_get(&pdev->dev, "avdd-dsi-csi"); in tegra_dsi_probe()
1627 if (IS_ERR(dsi->vdd)) { in tegra_dsi_probe()
1628 err = dev_err_probe(&pdev->dev, PTR_ERR(dsi->vdd), in tegra_dsi_probe()
1633 err = tegra_dsi_setup_clocks(dsi); in tegra_dsi_probe()
1640 dsi->regs = devm_ioremap_resource(&pdev->dev, regs); in tegra_dsi_probe()
1641 if (IS_ERR(dsi->regs)) { in tegra_dsi_probe()
1642 err = PTR_ERR(dsi->regs); in tegra_dsi_probe()
1646 dsi->mipi = tegra_mipi_request(&pdev->dev, pdev->dev.of_node); in tegra_dsi_probe()
1647 if (IS_ERR(dsi->mipi)) { in tegra_dsi_probe()
1648 err = PTR_ERR(dsi->mipi); in tegra_dsi_probe()
1652 dsi->host.ops = &tegra_dsi_host_ops; in tegra_dsi_probe()
1653 dsi->host.dev = &pdev->dev; in tegra_dsi_probe()
1655 err = mipi_dsi_host_register(&dsi->host); in tegra_dsi_probe()
1657 dev_err(&pdev->dev, "failed to register DSI host: %d\n", err); in tegra_dsi_probe()
1661 platform_set_drvdata(pdev, dsi); in tegra_dsi_probe()
1664 INIT_LIST_HEAD(&dsi->client.list); in tegra_dsi_probe()
1665 dsi->client.ops = &dsi_client_ops; in tegra_dsi_probe()
1666 dsi->client.dev = &pdev->dev; in tegra_dsi_probe()
1668 err = host1x_client_register(&dsi->client); in tegra_dsi_probe()
1679 mipi_dsi_host_unregister(&dsi->host); in tegra_dsi_probe()
1681 tegra_mipi_free(dsi->mipi); in tegra_dsi_probe()
1683 tegra_output_remove(&dsi->output); in tegra_dsi_probe()
1689 struct tegra_dsi *dsi = platform_get_drvdata(pdev); in tegra_dsi_remove() local
1693 host1x_client_unregister(&dsi->client); in tegra_dsi_remove()
1695 tegra_output_remove(&dsi->output); in tegra_dsi_remove()
1697 mipi_dsi_host_unregister(&dsi->host); in tegra_dsi_remove()
1698 tegra_mipi_free(dsi->mipi); in tegra_dsi_remove()
1702 { .compatible = "nvidia,tegra210-dsi", },
1703 { .compatible = "nvidia,tegra132-dsi", },
1704 { .compatible = "nvidia,tegra124-dsi", },
1705 { .compatible = "nvidia,tegra114-dsi", },
1712 .name = "tegra-dsi",