Lines Matching full:dsi
520 static inline void samsung_dsim_write(struct samsung_dsim *dsi, in samsung_dsim_write() argument
523 writel(val, dsi->reg_base + dsi->driver_data->reg_ofs[idx]); in samsung_dsim_write()
526 static inline u32 samsung_dsim_read(struct samsung_dsim *dsi, enum reg_idx idx) in samsung_dsim_read() argument
528 return readl(dsi->reg_base + dsi->driver_data->reg_ofs[idx]); in samsung_dsim_read()
531 static void samsung_dsim_wait_for_reset(struct samsung_dsim *dsi) in samsung_dsim_wait_for_reset() argument
533 if (wait_for_completion_timeout(&dsi->completed, msecs_to_jiffies(300))) in samsung_dsim_wait_for_reset()
536 dev_err(dsi->dev, "timeout waiting for reset\n"); in samsung_dsim_wait_for_reset()
539 static void samsung_dsim_reset(struct samsung_dsim *dsi) in samsung_dsim_reset() argument
541 u32 reset_val = dsi->driver_data->reg_values[RESET_TYPE]; in samsung_dsim_reset()
543 reinit_completion(&dsi->completed); in samsung_dsim_reset()
544 samsung_dsim_write(dsi, DSIM_SWRST_REG, reset_val); in samsung_dsim_reset()
551 static unsigned long samsung_dsim_pll_find_pms(struct samsung_dsim *dsi, in samsung_dsim_pll_find_pms() argument
556 const struct samsung_dsim_driver_data *driver_data = dsi->driver_data; in samsung_dsim_pll_find_pms()
607 static unsigned long samsung_dsim_set_pll(struct samsung_dsim *dsi, in samsung_dsim_set_pll() argument
610 const struct samsung_dsim_driver_data *driver_data = dsi->driver_data; in samsung_dsim_set_pll()
617 fin = dsi->pll_clk_rate; in samsung_dsim_set_pll()
618 fout = samsung_dsim_pll_find_pms(dsi, fin, freq, &p, &m, &s); in samsung_dsim_set_pll()
620 dev_err(dsi->dev, in samsung_dsim_set_pll()
624 dev_dbg(dsi->dev, "PLL freq %lu, (p %d, m %d, s %d)\n", fout, p, m, s); in samsung_dsim_set_pll()
627 dsi->reg_base + driver_data->plltmr_reg); in samsung_dsim_set_pll()
645 dev_dbg(dsi->dev, "band %d\n", band); in samsung_dsim_set_pll()
650 if (dsi->swap_dn_dp_clk) in samsung_dsim_set_pll()
652 if (dsi->swap_dn_dp_data) in samsung_dsim_set_pll()
655 samsung_dsim_write(dsi, DSIM_PLLCTRL_REG, reg); in samsung_dsim_set_pll()
660 dev_err(dsi->dev, "PLL failed to stabilize\n"); in samsung_dsim_set_pll()
663 reg = samsung_dsim_read(dsi, DSIM_STATUS_REG); in samsung_dsim_set_pll()
666 dsi->hs_clock = fout; in samsung_dsim_set_pll()
671 static int samsung_dsim_enable_clock(struct samsung_dsim *dsi) in samsung_dsim_enable_clock() argument
676 struct drm_display_mode *m = &dsi->mode; in samsung_dsim_enable_clock()
677 int bpp = mipi_dsi_pixel_format_to_bpp(dsi->format); in samsung_dsim_enable_clock()
683 if (dsi->burst_clk_rate) in samsung_dsim_enable_clock()
684 hs_clk = samsung_dsim_set_pll(dsi, dsi->burst_clk_rate); in samsung_dsim_enable_clock()
686 hs_clk = samsung_dsim_set_pll(dsi, DIV_ROUND_UP(pix_clk * bpp, dsi->lanes)); in samsung_dsim_enable_clock()
689 dev_err(dsi->dev, "failed to configure DSI PLL\n"); in samsung_dsim_enable_clock()
694 esc_div = DIV_ROUND_UP(byte_clk, dsi->esc_clk_rate); in samsung_dsim_enable_clock()
702 dev_dbg(dsi->dev, "hs_clk = %lu, byte_clk = %lu, esc_clk = %lu\n", in samsung_dsim_enable_clock()
705 reg = samsung_dsim_read(dsi, DSIM_CLKCTRL_REG); in samsung_dsim_enable_clock()
712 | DSIM_LANE_ESC_CLK_EN_DATA(BIT(dsi->lanes) - 1) in samsung_dsim_enable_clock()
715 samsung_dsim_write(dsi, DSIM_CLKCTRL_REG, reg); in samsung_dsim_enable_clock()
720 static void samsung_dsim_set_phy_ctrl(struct samsung_dsim *dsi) in samsung_dsim_set_phy_ctrl() argument
722 const struct samsung_dsim_driver_data *driver_data = dsi->driver_data; in samsung_dsim_set_phy_ctrl()
728 unsigned long long byte_clock = dsi->hs_clock / 8; in samsung_dsim_set_phy_ctrl()
733 phy_mipi_dphy_get_default_config_for_hsclk(dsi->hs_clock, in samsung_dsim_set_phy_ctrl()
734 dsi->lanes, &cfg); in samsung_dsim_set_phy_ctrl()
766 samsung_dsim_write(dsi, DSIM_PHYCTRL_REG, reg); in samsung_dsim_set_phy_ctrl()
776 samsung_dsim_write(dsi, DSIM_PHYTIMING_REG, reg); in samsung_dsim_set_phy_ctrl()
797 samsung_dsim_write(dsi, DSIM_PHYTIMING1_REG, reg); in samsung_dsim_set_phy_ctrl()
813 samsung_dsim_write(dsi, DSIM_PHYTIMING2_REG, reg); in samsung_dsim_set_phy_ctrl()
816 static void samsung_dsim_disable_clock(struct samsung_dsim *dsi) in samsung_dsim_disable_clock() argument
820 reg = samsung_dsim_read(dsi, DSIM_CLKCTRL_REG); in samsung_dsim_disable_clock()
823 samsung_dsim_write(dsi, DSIM_CLKCTRL_REG, reg); in samsung_dsim_disable_clock()
825 reg = samsung_dsim_read(dsi, DSIM_PLLCTRL_REG); in samsung_dsim_disable_clock()
827 samsung_dsim_write(dsi, DSIM_PLLCTRL_REG, reg); in samsung_dsim_disable_clock()
830 static void samsung_dsim_enable_lane(struct samsung_dsim *dsi, u32 lane) in samsung_dsim_enable_lane() argument
832 u32 reg = samsung_dsim_read(dsi, DSIM_CONFIG_REG); in samsung_dsim_enable_lane()
834 reg |= (DSIM_NUM_OF_DATA_LANE(dsi->lanes - 1) | DSIM_LANE_EN_CLK | in samsung_dsim_enable_lane()
836 samsung_dsim_write(dsi, DSIM_CONFIG_REG, reg); in samsung_dsim_enable_lane()
839 static int samsung_dsim_init_link(struct samsung_dsim *dsi) in samsung_dsim_init_link() argument
841 const struct samsung_dsim_driver_data *driver_data = dsi->driver_data; in samsung_dsim_init_link()
847 reg = samsung_dsim_read(dsi, DSIM_FIFOCTRL_REG); in samsung_dsim_init_link()
849 samsung_dsim_write(dsi, DSIM_FIFOCTRL_REG, reg); in samsung_dsim_init_link()
854 samsung_dsim_write(dsi, DSIM_FIFOCTRL_REG, reg); in samsung_dsim_init_link()
857 /* DSI configuration */ in samsung_dsim_init_link()
862 * If this bit is set[= MIPI_DSI_MODE_VIDEO], dsi will support video in samsung_dsim_init_link()
865 if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO) { in samsung_dsim_init_link()
872 if (!(dsi->mode_flags & MIPI_DSI_MODE_VSYNC_FLUSH)) in samsung_dsim_init_link()
874 if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO_SYNC_PULSE) in samsung_dsim_init_link()
876 if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO_BURST) in samsung_dsim_init_link()
878 if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO_AUTO_VERT) in samsung_dsim_init_link()
880 if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO_HSE) in samsung_dsim_init_link()
882 if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO_NO_HFP) in samsung_dsim_init_link()
884 if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO_NO_HBP) in samsung_dsim_init_link()
886 if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO_NO_HSA) in samsung_dsim_init_link()
890 if (dsi->mode_flags & MIPI_DSI_MODE_NO_EOT_PACKET) in samsung_dsim_init_link()
893 switch (dsi->format) { in samsung_dsim_init_link()
907 dev_err(dsi->dev, "invalid pixel format\n"); in samsung_dsim_init_link()
920 dsi->mode_flags & MIPI_DSI_CLOCK_NON_CONTINUOUS) in samsung_dsim_init_link()
922 samsung_dsim_write(dsi, DSIM_CONFIG_REG, reg); in samsung_dsim_init_link()
924 lanes_mask = BIT(dsi->lanes) - 1; in samsung_dsim_init_link()
925 samsung_dsim_enable_lane(dsi, lanes_mask); in samsung_dsim_init_link()
931 dev_err(dsi->dev, "waiting for bus lanes timed out\n"); in samsung_dsim_init_link()
935 reg = samsung_dsim_read(dsi, DSIM_STATUS_REG); in samsung_dsim_init_link()
941 reg = samsung_dsim_read(dsi, DSIM_ESCMODE_REG); in samsung_dsim_init_link()
944 samsung_dsim_write(dsi, DSIM_ESCMODE_REG, reg); in samsung_dsim_init_link()
947 samsung_dsim_write(dsi, DSIM_TIMEOUT_REG, reg); in samsung_dsim_init_link()
952 static void samsung_dsim_set_display_mode(struct samsung_dsim *dsi) in samsung_dsim_set_display_mode() argument
954 struct drm_display_mode *m = &dsi->mode; in samsung_dsim_set_display_mode()
955 unsigned int num_bits_resol = dsi->driver_data->num_bits_resol; in samsung_dsim_set_display_mode()
958 if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO) { in samsung_dsim_set_display_mode()
959 int byte_clk_khz = dsi->hs_clock / 1000 / 8; in samsung_dsim_set_display_mode()
969 dev_dbg(dsi->dev, "calculated hfp: %u, hbp: %u, hsa: %u", in samsung_dsim_set_display_mode()
975 samsung_dsim_write(dsi, DSIM_MVPORCH_REG, reg); in samsung_dsim_set_display_mode()
978 samsung_dsim_write(dsi, DSIM_MHPORCH_REG, reg); in samsung_dsim_set_display_mode()
982 samsung_dsim_write(dsi, DSIM_MSYNC_REG, reg); in samsung_dsim_set_display_mode()
987 samsung_dsim_write(dsi, DSIM_MDRESOL_REG, reg); in samsung_dsim_set_display_mode()
989 dev_dbg(dsi->dev, "LCD size = %dx%d\n", m->hdisplay, m->vdisplay); in samsung_dsim_set_display_mode()
992 static void samsung_dsim_set_display_enable(struct samsung_dsim *dsi, bool enable) in samsung_dsim_set_display_enable() argument
996 reg = samsung_dsim_read(dsi, DSIM_MDRESOL_REG); in samsung_dsim_set_display_enable()
1001 samsung_dsim_write(dsi, DSIM_MDRESOL_REG, reg); in samsung_dsim_set_display_enable()
1004 static int samsung_dsim_wait_for_hdr_fifo(struct samsung_dsim *dsi) in samsung_dsim_wait_for_hdr_fifo() argument
1009 u32 reg = samsung_dsim_read(dsi, DSIM_FIFOCTRL_REG); in samsung_dsim_wait_for_hdr_fifo()
1011 if (!dsi->driver_data->has_broken_fifoctrl_emptyhdr) { in samsung_dsim_wait_for_hdr_fifo()
1033 static void samsung_dsim_set_cmd_lpm(struct samsung_dsim *dsi, bool lpm) in samsung_dsim_set_cmd_lpm() argument
1035 u32 v = samsung_dsim_read(dsi, DSIM_ESCMODE_REG); in samsung_dsim_set_cmd_lpm()
1042 samsung_dsim_write(dsi, DSIM_ESCMODE_REG, v); in samsung_dsim_set_cmd_lpm()
1045 static void samsung_dsim_force_bta(struct samsung_dsim *dsi) in samsung_dsim_force_bta() argument
1047 u32 v = samsung_dsim_read(dsi, DSIM_ESCMODE_REG); in samsung_dsim_force_bta()
1050 samsung_dsim_write(dsi, DSIM_ESCMODE_REG, v); in samsung_dsim_force_bta()
1053 static void samsung_dsim_send_to_fifo(struct samsung_dsim *dsi, in samsung_dsim_send_to_fifo() argument
1056 struct device *dev = dsi->dev; in samsung_dsim_send_to_fifo()
1074 samsung_dsim_write(dsi, DSIM_PAYLOAD_REG, reg); in samsung_dsim_send_to_fifo()
1089 samsung_dsim_write(dsi, DSIM_PAYLOAD_REG, reg); in samsung_dsim_send_to_fifo()
1098 if (samsung_dsim_wait_for_hdr_fifo(dsi)) { in samsung_dsim_send_to_fifo()
1104 dsi->state & DSIM_STATE_CMD_LPM)) { in samsung_dsim_send_to_fifo()
1105 samsung_dsim_set_cmd_lpm(dsi, xfer->flags & MIPI_DSI_MSG_USE_LPM); in samsung_dsim_send_to_fifo()
1106 dsi->state ^= DSIM_STATE_CMD_LPM; in samsung_dsim_send_to_fifo()
1109 samsung_dsim_write(dsi, DSIM_PKTHDR_REG, reg); in samsung_dsim_send_to_fifo()
1112 samsung_dsim_force_bta(dsi); in samsung_dsim_send_to_fifo()
1115 static void samsung_dsim_read_from_fifo(struct samsung_dsim *dsi, in samsung_dsim_read_from_fifo() argument
1120 struct device *dev = dsi->dev; in samsung_dsim_read_from_fifo()
1125 reg = samsung_dsim_read(dsi, DSIM_RXFIFO_REG); in samsung_dsim_read_from_fifo()
1143 dev_err(dev, "DSI Error Report: 0x%04x\n", (reg >> 8) & 0xffff); in samsung_dsim_read_from_fifo()
1164 reg = samsung_dsim_read(dsi, DSIM_RXFIFO_REG); in samsung_dsim_read_from_fifo()
1174 reg = samsung_dsim_read(dsi, DSIM_RXFIFO_REG); in samsung_dsim_read_from_fifo()
1193 reg = samsung_dsim_read(dsi, DSIM_RXFIFO_REG); in samsung_dsim_read_from_fifo()
1199 static void samsung_dsim_transfer_start(struct samsung_dsim *dsi) in samsung_dsim_transfer_start() argument
1206 spin_lock_irqsave(&dsi->transfer_lock, flags); in samsung_dsim_transfer_start()
1208 if (list_empty(&dsi->transfer_list)) { in samsung_dsim_transfer_start()
1209 spin_unlock_irqrestore(&dsi->transfer_lock, flags); in samsung_dsim_transfer_start()
1213 xfer = list_first_entry(&dsi->transfer_list, in samsung_dsim_transfer_start()
1216 spin_unlock_irqrestore(&dsi->transfer_lock, flags); in samsung_dsim_transfer_start()
1223 samsung_dsim_send_to_fifo(dsi, xfer); in samsung_dsim_transfer_start()
1231 spin_lock_irqsave(&dsi->transfer_lock, flags); in samsung_dsim_transfer_start()
1234 start = !list_empty(&dsi->transfer_list); in samsung_dsim_transfer_start()
1236 spin_unlock_irqrestore(&dsi->transfer_lock, flags); in samsung_dsim_transfer_start()
1242 static bool samsung_dsim_transfer_finish(struct samsung_dsim *dsi) in samsung_dsim_transfer_finish() argument
1248 spin_lock_irqsave(&dsi->transfer_lock, flags); in samsung_dsim_transfer_finish()
1250 if (list_empty(&dsi->transfer_list)) { in samsung_dsim_transfer_finish()
1251 spin_unlock_irqrestore(&dsi->transfer_lock, flags); in samsung_dsim_transfer_finish()
1255 xfer = list_first_entry(&dsi->transfer_list, in samsung_dsim_transfer_finish()
1258 spin_unlock_irqrestore(&dsi->transfer_lock, flags); in samsung_dsim_transfer_finish()
1260 dev_dbg(dsi->dev, in samsung_dsim_transfer_finish()
1269 samsung_dsim_read_from_fifo(dsi, xfer); in samsung_dsim_transfer_finish()
1274 spin_lock_irqsave(&dsi->transfer_lock, flags); in samsung_dsim_transfer_finish()
1277 start = !list_empty(&dsi->transfer_list); in samsung_dsim_transfer_finish()
1279 spin_unlock_irqrestore(&dsi->transfer_lock, flags); in samsung_dsim_transfer_finish()
1288 static void samsung_dsim_remove_transfer(struct samsung_dsim *dsi, in samsung_dsim_remove_transfer() argument
1294 spin_lock_irqsave(&dsi->transfer_lock, flags); in samsung_dsim_remove_transfer()
1296 if (!list_empty(&dsi->transfer_list) && in samsung_dsim_remove_transfer()
1297 xfer == list_first_entry(&dsi->transfer_list, in samsung_dsim_remove_transfer()
1300 start = !list_empty(&dsi->transfer_list); in samsung_dsim_remove_transfer()
1301 spin_unlock_irqrestore(&dsi->transfer_lock, flags); in samsung_dsim_remove_transfer()
1303 samsung_dsim_transfer_start(dsi); in samsung_dsim_remove_transfer()
1309 spin_unlock_irqrestore(&dsi->transfer_lock, flags); in samsung_dsim_remove_transfer()
1312 static int samsung_dsim_transfer(struct samsung_dsim *dsi, in samsung_dsim_transfer() argument
1323 spin_lock_irqsave(&dsi->transfer_lock, flags); in samsung_dsim_transfer()
1325 stopped = list_empty(&dsi->transfer_list); in samsung_dsim_transfer()
1326 list_add_tail(&xfer->list, &dsi->transfer_list); in samsung_dsim_transfer()
1328 spin_unlock_irqrestore(&dsi->transfer_lock, flags); in samsung_dsim_transfer()
1331 samsung_dsim_transfer_start(dsi); in samsung_dsim_transfer()
1338 samsung_dsim_remove_transfer(dsi, xfer); in samsung_dsim_transfer()
1339 dev_err(dsi->dev, "xfer timed out: %*ph %*ph\n", 4, pkt->header, in samsung_dsim_transfer()
1350 struct samsung_dsim *dsi = dev_id; in samsung_dsim_irq() local
1353 status = samsung_dsim_read(dsi, DSIM_INTSRC_REG); in samsung_dsim_irq()
1358 dev_warn(dsi->dev, "spurious interrupt\n"); in samsung_dsim_irq()
1361 samsung_dsim_write(dsi, DSIM_INTSRC_REG, status); in samsung_dsim_irq()
1369 samsung_dsim_write(dsi, DSIM_INTMSK_REG, mask); in samsung_dsim_irq()
1370 complete(&dsi->completed); in samsung_dsim_irq()
1378 if (samsung_dsim_transfer_finish(dsi)) in samsung_dsim_irq()
1379 samsung_dsim_transfer_start(dsi); in samsung_dsim_irq()
1384 static void samsung_dsim_enable_irq(struct samsung_dsim *dsi) in samsung_dsim_enable_irq() argument
1386 enable_irq(dsi->irq); in samsung_dsim_enable_irq()
1388 if (dsi->te_gpio) in samsung_dsim_enable_irq()
1389 enable_irq(gpiod_to_irq(dsi->te_gpio)); in samsung_dsim_enable_irq()
1392 static void samsung_dsim_disable_irq(struct samsung_dsim *dsi) in samsung_dsim_disable_irq() argument
1394 if (dsi->te_gpio) in samsung_dsim_disable_irq()
1395 disable_irq(gpiod_to_irq(dsi->te_gpio)); in samsung_dsim_disable_irq()
1397 disable_irq(dsi->irq); in samsung_dsim_disable_irq()
1400 static int samsung_dsim_init(struct samsung_dsim *dsi) in samsung_dsim_init() argument
1402 const struct samsung_dsim_driver_data *driver_data = dsi->driver_data; in samsung_dsim_init()
1404 if (dsi->state & DSIM_STATE_INITIALIZED) in samsung_dsim_init()
1407 samsung_dsim_reset(dsi); in samsung_dsim_init()
1408 samsung_dsim_enable_irq(dsi); in samsung_dsim_init()
1411 samsung_dsim_enable_lane(dsi, BIT(dsi->lanes) - 1); in samsung_dsim_init()
1413 samsung_dsim_enable_clock(dsi); in samsung_dsim_init()
1415 samsung_dsim_wait_for_reset(dsi); in samsung_dsim_init()
1416 samsung_dsim_set_phy_ctrl(dsi); in samsung_dsim_init()
1417 samsung_dsim_init_link(dsi); in samsung_dsim_init()
1419 dsi->state |= DSIM_STATE_INITIALIZED; in samsung_dsim_init()
1427 struct samsung_dsim *dsi = bridge_to_dsi(bridge); in samsung_dsim_atomic_pre_enable() local
1430 if (dsi->state & DSIM_STATE_ENABLED) in samsung_dsim_atomic_pre_enable()
1433 ret = pm_runtime_resume_and_get(dsi->dev); in samsung_dsim_atomic_pre_enable()
1435 dev_err(dsi->dev, "failed to enable DSI device.\n"); in samsung_dsim_atomic_pre_enable()
1439 dsi->state |= DSIM_STATE_ENABLED; in samsung_dsim_atomic_pre_enable()
1443 * the host initialization during DSI transfer. in samsung_dsim_atomic_pre_enable()
1445 if (!samsung_dsim_hw_is_exynos(dsi->plat_data->hw_type)) { in samsung_dsim_atomic_pre_enable()
1446 ret = samsung_dsim_init(dsi); in samsung_dsim_atomic_pre_enable()
1455 struct samsung_dsim *dsi = bridge_to_dsi(bridge); in samsung_dsim_atomic_enable() local
1457 samsung_dsim_set_display_mode(dsi); in samsung_dsim_atomic_enable()
1458 samsung_dsim_set_display_enable(dsi, true); in samsung_dsim_atomic_enable()
1460 dsi->state |= DSIM_STATE_VIDOUT_AVAILABLE; in samsung_dsim_atomic_enable()
1466 struct samsung_dsim *dsi = bridge_to_dsi(bridge); in samsung_dsim_atomic_disable() local
1468 if (!(dsi->state & DSIM_STATE_ENABLED)) in samsung_dsim_atomic_disable()
1471 dsi->state &= ~DSIM_STATE_VIDOUT_AVAILABLE; in samsung_dsim_atomic_disable()
1477 struct samsung_dsim *dsi = bridge_to_dsi(bridge); in samsung_dsim_atomic_post_disable() local
1479 samsung_dsim_set_display_enable(dsi, false); in samsung_dsim_atomic_post_disable()
1481 dsi->state &= ~DSIM_STATE_ENABLED; in samsung_dsim_atomic_post_disable()
1482 pm_runtime_put_sync(dsi->dev); in samsung_dsim_atomic_post_disable()
1487 * AN13573 i.MX 8/RT MIPI DSI/CSI-2, Rev. 0, 21 March 2022
1489 * Table 14. DSI pixel packing formats
1550 struct samsung_dsim *dsi = bridge_to_dsi(bridge); in samsung_dsim_atomic_check() local
1567 if (dsi->plat_data->hw_type == DSIM_TYPE_IMX8MM) { in samsung_dsim_atomic_check()
1570 } else if (dsi->plat_data->hw_type == DSIM_TYPE_IMX8MP) { in samsung_dsim_atomic_check()
1582 struct samsung_dsim *dsi = bridge_to_dsi(bridge); in samsung_dsim_mode_set() local
1584 drm_mode_copy(&dsi->mode, adjusted_mode); in samsung_dsim_mode_set()
1590 struct samsung_dsim *dsi = bridge_to_dsi(bridge); in samsung_dsim_attach() local
1592 return drm_bridge_attach(bridge->encoder, dsi->out_bridge, bridge, in samsung_dsim_attach()
1612 struct samsung_dsim *dsi = (struct samsung_dsim *)dev_id; in samsung_dsim_te_irq_handler() local
1613 const struct samsung_dsim_plat_data *pdata = dsi->plat_data; in samsung_dsim_te_irq_handler()
1616 return pdata->host_ops->te_irq_handler(dsi); in samsung_dsim_te_irq_handler()
1621 static int samsung_dsim_register_te_irq(struct samsung_dsim *dsi, struct device *dev) in samsung_dsim_register_te_irq() argument
1626 dsi->te_gpio = devm_gpiod_get_optional(dev, "te", GPIOD_IN); in samsung_dsim_register_te_irq()
1627 if (!dsi->te_gpio) in samsung_dsim_register_te_irq()
1629 else if (IS_ERR(dsi->te_gpio)) in samsung_dsim_register_te_irq()
1630 return dev_err_probe(dev, PTR_ERR(dsi->te_gpio), "failed to get te GPIO\n"); in samsung_dsim_register_te_irq()
1632 te_gpio_irq = gpiod_to_irq(dsi->te_gpio); in samsung_dsim_register_te_irq()
1635 IRQF_TRIGGER_RISING | IRQF_NO_AUTOEN, "TE", dsi); in samsung_dsim_register_te_irq()
1637 dev_err(dsi->dev, "request interrupt failed with %d\n", ret); in samsung_dsim_register_te_irq()
1638 gpiod_put(dsi->te_gpio); in samsung_dsim_register_te_irq()
1648 struct samsung_dsim *dsi = host_to_dsi(host); in samsung_dsim_host_attach() local
1649 const struct samsung_dsim_plat_data *pdata = dsi->plat_data; in samsung_dsim_host_attach()
1650 struct device *dev = dsi->dev; in samsung_dsim_host_attach()
1658 * through the upstream device (ie, MIPI-DCS for a MIPI-DSI device). in samsung_dsim_host_attach()
1688 dsi->out_bridge = devm_drm_panel_bridge_add(dev, panel); in samsung_dsim_host_attach()
1690 dsi->out_bridge = of_drm_find_bridge(remote); in samsung_dsim_host_attach()
1691 if (!dsi->out_bridge) in samsung_dsim_host_attach()
1692 dsi->out_bridge = ERR_PTR(-EINVAL); in samsung_dsim_host_attach()
1697 if (IS_ERR(dsi->out_bridge)) { in samsung_dsim_host_attach()
1698 ret = PTR_ERR(dsi->out_bridge); in samsung_dsim_host_attach()
1705 drm_bridge_add(&dsi->bridge); in samsung_dsim_host_attach()
1710 * If attached panel device is for command mode one, dsi should register in samsung_dsim_host_attach()
1714 ret = samsung_dsim_register_te_irq(dsi, &device->dev); in samsung_dsim_host_attach()
1720 ret = pdata->host_ops->attach(dsi, device); in samsung_dsim_host_attach()
1725 dsi->lanes = device->lanes; in samsung_dsim_host_attach()
1726 dsi->format = device->format; in samsung_dsim_host_attach()
1727 dsi->mode_flags = device->mode_flags; in samsung_dsim_host_attach()
1732 static void samsung_dsim_unregister_te_irq(struct samsung_dsim *dsi) in samsung_dsim_unregister_te_irq() argument
1734 if (dsi->te_gpio) { in samsung_dsim_unregister_te_irq()
1735 free_irq(gpiod_to_irq(dsi->te_gpio), dsi); in samsung_dsim_unregister_te_irq()
1736 gpiod_put(dsi->te_gpio); in samsung_dsim_unregister_te_irq()
1743 struct samsung_dsim *dsi = host_to_dsi(host); in samsung_dsim_host_detach() local
1744 const struct samsung_dsim_plat_data *pdata = dsi->plat_data; in samsung_dsim_host_detach()
1746 dsi->out_bridge = NULL; in samsung_dsim_host_detach()
1749 pdata->host_ops->detach(dsi, device); in samsung_dsim_host_detach()
1751 samsung_dsim_unregister_te_irq(dsi); in samsung_dsim_host_detach()
1753 drm_bridge_remove(&dsi->bridge); in samsung_dsim_host_detach()
1761 struct samsung_dsim *dsi = host_to_dsi(host); in samsung_dsim_host_transfer() local
1765 if (!(dsi->state & DSIM_STATE_ENABLED)) in samsung_dsim_host_transfer()
1768 ret = samsung_dsim_init(dsi); in samsung_dsim_host_transfer()
1780 ret = samsung_dsim_transfer(dsi, &xfer); in samsung_dsim_host_transfer()
1801 static int samsung_dsim_parse_dt(struct samsung_dsim *dsi) in samsung_dsim_parse_dt() argument
1803 struct device *dev = dsi->dev; in samsung_dsim_parse_dt()
1811 &dsi->pll_clk_rate, 1); in samsung_dsim_parse_dt()
1817 dsi->pll_clk_rate = clk_get_rate(pll_clk); in samsung_dsim_parse_dt()
1824 &dsi->burst_clk_rate, 1); in samsung_dsim_parse_dt()
1827 dsi->burst_clk_rate = 0; in samsung_dsim_parse_dt()
1831 &dsi->esc_clk_rate, 0); in samsung_dsim_parse_dt()
1843 DRM_DEV_ERROR(dsi->dev, "Data lanes polarities do not match"); in samsung_dsim_parse_dt()
1846 dsi->swap_dn_dp_clk = true; in samsung_dsim_parse_dt()
1848 dsi->swap_dn_dp_data = true; in samsung_dsim_parse_dt()
1854 static int generic_dsim_register_host(struct samsung_dsim *dsi) in generic_dsim_register_host() argument
1856 return mipi_dsi_host_register(&dsi->dsi_host); in generic_dsim_register_host()
1859 static void generic_dsim_unregister_host(struct samsung_dsim *dsi) in generic_dsim_unregister_host() argument
1861 mipi_dsi_host_unregister(&dsi->dsi_host); in generic_dsim_unregister_host()
1880 struct samsung_dsim *dsi; in samsung_dsim_probe() local
1883 dsi = devm_kzalloc(dev, sizeof(*dsi), GFP_KERNEL); in samsung_dsim_probe()
1884 if (!dsi) in samsung_dsim_probe()
1887 init_completion(&dsi->completed); in samsung_dsim_probe()
1888 spin_lock_init(&dsi->transfer_lock); in samsung_dsim_probe()
1889 INIT_LIST_HEAD(&dsi->transfer_list); in samsung_dsim_probe()
1891 dsi->dsi_host.ops = &samsung_dsim_ops; in samsung_dsim_probe()
1892 dsi->dsi_host.dev = dev; in samsung_dsim_probe()
1894 dsi->dev = dev; in samsung_dsim_probe()
1895 dsi->plat_data = of_device_get_match_data(dev); in samsung_dsim_probe()
1896 dsi->driver_data = samsung_dsim_types[dsi->plat_data->hw_type]; in samsung_dsim_probe()
1898 dsi->supplies[0].supply = "vddcore"; in samsung_dsim_probe()
1899 dsi->supplies[1].supply = "vddio"; in samsung_dsim_probe()
1900 ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(dsi->supplies), in samsung_dsim_probe()
1901 dsi->supplies); in samsung_dsim_probe()
1905 dsi->clks = devm_kcalloc(dev, dsi->driver_data->num_clks, in samsung_dsim_probe()
1906 sizeof(*dsi->clks), GFP_KERNEL); in samsung_dsim_probe()
1907 if (!dsi->clks) in samsung_dsim_probe()
1910 for (i = 0; i < dsi->driver_data->num_clks; i++) { in samsung_dsim_probe()
1911 dsi->clks[i] = devm_clk_get(dev, clk_names[i]); in samsung_dsim_probe()
1912 if (IS_ERR(dsi->clks[i])) { in samsung_dsim_probe()
1914 dsi->clks[i] = devm_clk_get(dev, OLD_SCLK_MIPI_CLK_NAME); in samsung_dsim_probe()
1915 if (!IS_ERR(dsi->clks[i])) in samsung_dsim_probe()
1920 return PTR_ERR(dsi->clks[i]); in samsung_dsim_probe()
1924 dsi->reg_base = devm_platform_ioremap_resource(pdev, 0); in samsung_dsim_probe()
1925 if (IS_ERR(dsi->reg_base)) in samsung_dsim_probe()
1926 return PTR_ERR(dsi->reg_base); in samsung_dsim_probe()
1928 dsi->phy = devm_phy_optional_get(dev, "dsim"); in samsung_dsim_probe()
1929 if (IS_ERR(dsi->phy)) { in samsung_dsim_probe()
1931 return PTR_ERR(dsi->phy); in samsung_dsim_probe()
1934 dsi->irq = platform_get_irq(pdev, 0); in samsung_dsim_probe()
1935 if (dsi->irq < 0) in samsung_dsim_probe()
1936 return dsi->irq; in samsung_dsim_probe()
1938 ret = devm_request_threaded_irq(dev, dsi->irq, NULL, in samsung_dsim_probe()
1941 dev_name(dev), dsi); in samsung_dsim_probe()
1943 dev_err(dev, "failed to request dsi irq\n"); in samsung_dsim_probe()
1947 ret = samsung_dsim_parse_dt(dsi); in samsung_dsim_probe()
1951 platform_set_drvdata(pdev, dsi); in samsung_dsim_probe()
1955 dsi->bridge.funcs = &samsung_dsim_bridge_funcs; in samsung_dsim_probe()
1956 dsi->bridge.of_node = dev->of_node; in samsung_dsim_probe()
1957 dsi->bridge.type = DRM_MODE_CONNECTOR_DSI; in samsung_dsim_probe()
1960 if (dsi->plat_data->hw_type == DSIM_TYPE_IMX8MM) in samsung_dsim_probe()
1961 dsi->bridge.timings = &samsung_dsim_bridge_timings_de_low; in samsung_dsim_probe()
1963 dsi->bridge.timings = &samsung_dsim_bridge_timings_de_high; in samsung_dsim_probe()
1965 if (dsi->plat_data->host_ops && dsi->plat_data->host_ops->register_host) in samsung_dsim_probe()
1966 ret = dsi->plat_data->host_ops->register_host(dsi); in samsung_dsim_probe()
1982 struct samsung_dsim *dsi = platform_get_drvdata(pdev); in samsung_dsim_remove() local
1986 if (dsi->plat_data->host_ops && dsi->plat_data->host_ops->unregister_host) in samsung_dsim_remove()
1987 dsi->plat_data->host_ops->unregister_host(dsi); in samsung_dsim_remove()
1995 struct samsung_dsim *dsi = dev_get_drvdata(dev); in samsung_dsim_suspend() local
1996 const struct samsung_dsim_driver_data *driver_data = dsi->driver_data; in samsung_dsim_suspend()
2001 if (dsi->state & DSIM_STATE_INITIALIZED) { in samsung_dsim_suspend()
2002 dsi->state &= ~DSIM_STATE_INITIALIZED; in samsung_dsim_suspend()
2004 samsung_dsim_disable_clock(dsi); in samsung_dsim_suspend()
2006 samsung_dsim_disable_irq(dsi); in samsung_dsim_suspend()
2009 dsi->state &= ~DSIM_STATE_CMD_LPM; in samsung_dsim_suspend()
2011 phy_power_off(dsi->phy); in samsung_dsim_suspend()
2014 clk_disable_unprepare(dsi->clks[i]); in samsung_dsim_suspend()
2016 ret = regulator_bulk_disable(ARRAY_SIZE(dsi->supplies), dsi->supplies); in samsung_dsim_suspend()
2018 dev_err(dsi->dev, "cannot disable regulators %d\n", ret); in samsung_dsim_suspend()
2025 struct samsung_dsim *dsi = dev_get_drvdata(dev); in samsung_dsim_resume() local
2026 const struct samsung_dsim_driver_data *driver_data = dsi->driver_data; in samsung_dsim_resume()
2029 ret = regulator_bulk_enable(ARRAY_SIZE(dsi->supplies), dsi->supplies); in samsung_dsim_resume()
2031 dev_err(dsi->dev, "cannot enable regulators %d\n", ret); in samsung_dsim_resume()
2036 ret = clk_prepare_enable(dsi->clks[i]); in samsung_dsim_resume()
2041 ret = phy_power_on(dsi->phy); in samsung_dsim_resume()
2043 dev_err(dsi->dev, "cannot enable phy %d\n", ret); in samsung_dsim_resume()
2051 clk_disable_unprepare(dsi->clks[i]); in samsung_dsim_resume()
2052 regulator_bulk_disable(ARRAY_SIZE(dsi->supplies), dsi->supplies); in samsung_dsim_resume()