Lines Matching full:dsi
533 static inline void samsung_dsim_write(struct samsung_dsim *dsi, in samsung_dsim_write() argument
536 writel(val, dsi->reg_base + dsi->driver_data->reg_ofs[idx]); in samsung_dsim_write()
539 static inline u32 samsung_dsim_read(struct samsung_dsim *dsi, enum reg_idx idx) in samsung_dsim_read() argument
541 return readl(dsi->reg_base + dsi->driver_data->reg_ofs[idx]); in samsung_dsim_read()
544 static void samsung_dsim_wait_for_reset(struct samsung_dsim *dsi) in samsung_dsim_wait_for_reset() argument
546 if (wait_for_completion_timeout(&dsi->completed, msecs_to_jiffies(300))) in samsung_dsim_wait_for_reset()
549 dev_err(dsi->dev, "timeout waiting for reset\n"); in samsung_dsim_wait_for_reset()
552 static void samsung_dsim_reset(struct samsung_dsim *dsi) in samsung_dsim_reset() argument
554 u32 reset_val = dsi->driver_data->reg_values[RESET_TYPE]; in samsung_dsim_reset()
556 reinit_completion(&dsi->completed); in samsung_dsim_reset()
557 samsung_dsim_write(dsi, DSIM_SWRST_REG, reset_val); in samsung_dsim_reset()
564 static unsigned long samsung_dsim_pll_find_pms(struct samsung_dsim *dsi, in samsung_dsim_pll_find_pms() argument
569 const struct samsung_dsim_driver_data *driver_data = dsi->driver_data; in samsung_dsim_pll_find_pms()
620 static unsigned long samsung_dsim_set_pll(struct samsung_dsim *dsi, in samsung_dsim_set_pll() argument
623 const struct samsung_dsim_driver_data *driver_data = dsi->driver_data; in samsung_dsim_set_pll()
630 if (dsi->pll_clk) { in samsung_dsim_set_pll()
636 fin = clk_get_rate(clk_get_parent(dsi->pll_clk)); in samsung_dsim_set_pll()
639 clk_set_rate(dsi->pll_clk, fin); in samsung_dsim_set_pll()
641 fin = clk_get_rate(dsi->pll_clk); in samsung_dsim_set_pll()
643 fin = dsi->pll_clk_rate; in samsung_dsim_set_pll()
645 dev_dbg(dsi->dev, "PLL ref clock freq %lu\n", fin); in samsung_dsim_set_pll()
647 fout = samsung_dsim_pll_find_pms(dsi, fin, freq, &p, &m, &s); in samsung_dsim_set_pll()
649 dev_err(dsi->dev, in samsung_dsim_set_pll()
653 dev_dbg(dsi->dev, "PLL freq %lu, (p %d, m %d, s %d)\n", fout, p, m, s); in samsung_dsim_set_pll()
656 dsi->reg_base + driver_data->plltmr_reg); in samsung_dsim_set_pll()
674 dev_dbg(dsi->dev, "band %d\n", band); in samsung_dsim_set_pll()
679 if (dsi->swap_dn_dp_clk) in samsung_dsim_set_pll()
681 if (dsi->swap_dn_dp_data) in samsung_dsim_set_pll()
684 samsung_dsim_write(dsi, DSIM_PLLCTRL_REG, reg); in samsung_dsim_set_pll()
689 dev_err(dsi->dev, "PLL failed to stabilize\n"); in samsung_dsim_set_pll()
692 reg = samsung_dsim_read(dsi, DSIM_STATUS_REG); in samsung_dsim_set_pll()
695 dsi->hs_clock = fout; in samsung_dsim_set_pll()
700 static int samsung_dsim_enable_clock(struct samsung_dsim *dsi) in samsung_dsim_enable_clock() argument
705 struct drm_display_mode *m = &dsi->mode; in samsung_dsim_enable_clock()
706 int bpp = mipi_dsi_pixel_format_to_bpp(dsi->format); in samsung_dsim_enable_clock()
712 if (dsi->burst_clk_rate) in samsung_dsim_enable_clock()
713 hs_clk = samsung_dsim_set_pll(dsi, dsi->burst_clk_rate); in samsung_dsim_enable_clock()
715 hs_clk = samsung_dsim_set_pll(dsi, DIV_ROUND_UP(pix_clk * bpp, dsi->lanes)); in samsung_dsim_enable_clock()
718 dev_err(dsi->dev, "failed to configure DSI PLL\n"); in samsung_dsim_enable_clock()
723 esc_div = DIV_ROUND_UP(byte_clk, dsi->esc_clk_rate); in samsung_dsim_enable_clock()
731 dev_dbg(dsi->dev, "hs_clk = %lu, byte_clk = %lu, esc_clk = %lu\n", in samsung_dsim_enable_clock()
734 reg = samsung_dsim_read(dsi, DSIM_CLKCTRL_REG); in samsung_dsim_enable_clock()
741 | DSIM_LANE_ESC_CLK_EN_DATA(BIT(dsi->lanes) - 1) in samsung_dsim_enable_clock()
744 samsung_dsim_write(dsi, DSIM_CLKCTRL_REG, reg); in samsung_dsim_enable_clock()
749 static void samsung_dsim_set_phy_ctrl(struct samsung_dsim *dsi) in samsung_dsim_set_phy_ctrl() argument
751 const struct samsung_dsim_driver_data *driver_data = dsi->driver_data; in samsung_dsim_set_phy_ctrl()
757 unsigned long long byte_clock = dsi->hs_clock / 8; in samsung_dsim_set_phy_ctrl()
762 phy_mipi_dphy_get_default_config_for_hsclk(dsi->hs_clock, in samsung_dsim_set_phy_ctrl()
763 dsi->lanes, &cfg); in samsung_dsim_set_phy_ctrl()
795 samsung_dsim_write(dsi, DSIM_PHYCTRL_REG, reg); in samsung_dsim_set_phy_ctrl()
805 samsung_dsim_write(dsi, DSIM_PHYTIMING_REG, reg); in samsung_dsim_set_phy_ctrl()
826 samsung_dsim_write(dsi, DSIM_PHYTIMING1_REG, reg); in samsung_dsim_set_phy_ctrl()
842 samsung_dsim_write(dsi, DSIM_PHYTIMING2_REG, reg); in samsung_dsim_set_phy_ctrl()
845 static void samsung_dsim_disable_clock(struct samsung_dsim *dsi) in samsung_dsim_disable_clock() argument
849 reg = samsung_dsim_read(dsi, DSIM_CLKCTRL_REG); in samsung_dsim_disable_clock()
852 samsung_dsim_write(dsi, DSIM_CLKCTRL_REG, reg); in samsung_dsim_disable_clock()
854 reg = samsung_dsim_read(dsi, DSIM_PLLCTRL_REG); in samsung_dsim_disable_clock()
856 samsung_dsim_write(dsi, DSIM_PLLCTRL_REG, reg); in samsung_dsim_disable_clock()
859 static void samsung_dsim_enable_lane(struct samsung_dsim *dsi, u32 lane) in samsung_dsim_enable_lane() argument
861 u32 reg = samsung_dsim_read(dsi, DSIM_CONFIG_REG); in samsung_dsim_enable_lane()
863 reg |= (DSIM_NUM_OF_DATA_LANE(dsi->lanes - 1) | DSIM_LANE_EN_CLK | in samsung_dsim_enable_lane()
865 samsung_dsim_write(dsi, DSIM_CONFIG_REG, reg); in samsung_dsim_enable_lane()
868 static int samsung_dsim_init_link(struct samsung_dsim *dsi) in samsung_dsim_init_link() argument
870 const struct samsung_dsim_driver_data *driver_data = dsi->driver_data; in samsung_dsim_init_link()
876 reg = samsung_dsim_read(dsi, DSIM_FIFOCTRL_REG); in samsung_dsim_init_link()
878 samsung_dsim_write(dsi, DSIM_FIFOCTRL_REG, reg); in samsung_dsim_init_link()
883 samsung_dsim_write(dsi, DSIM_FIFOCTRL_REG, reg); in samsung_dsim_init_link()
886 /* DSI configuration */ in samsung_dsim_init_link()
891 * If this bit is set[= MIPI_DSI_MODE_VIDEO], dsi will support video in samsung_dsim_init_link()
894 if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO) { in samsung_dsim_init_link()
901 if (!(dsi->mode_flags & MIPI_DSI_MODE_VSYNC_FLUSH)) in samsung_dsim_init_link()
903 if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO_SYNC_PULSE) in samsung_dsim_init_link()
905 if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO_BURST) in samsung_dsim_init_link()
907 if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO_AUTO_VERT) in samsung_dsim_init_link()
909 if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO_HSE) in samsung_dsim_init_link()
911 if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO_NO_HFP) in samsung_dsim_init_link()
913 if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO_NO_HBP) in samsung_dsim_init_link()
915 if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO_NO_HSA) in samsung_dsim_init_link()
919 if (dsi->mode_flags & MIPI_DSI_MODE_NO_EOT_PACKET) in samsung_dsim_init_link()
922 switch (dsi->format) { in samsung_dsim_init_link()
936 dev_err(dsi->dev, "invalid pixel format\n"); in samsung_dsim_init_link()
949 dsi->mode_flags & MIPI_DSI_CLOCK_NON_CONTINUOUS) { in samsung_dsim_init_link()
950 if (!samsung_dsim_hw_is_exynos(dsi->plat_data->hw_type)) in samsung_dsim_init_link()
955 samsung_dsim_write(dsi, DSIM_CONFIG_REG, reg); in samsung_dsim_init_link()
957 lanes_mask = BIT(dsi->lanes) - 1; in samsung_dsim_init_link()
958 samsung_dsim_enable_lane(dsi, lanes_mask); in samsung_dsim_init_link()
964 dev_err(dsi->dev, "waiting for bus lanes timed out\n"); in samsung_dsim_init_link()
968 reg = samsung_dsim_read(dsi, DSIM_STATUS_REG); in samsung_dsim_init_link()
974 reg = samsung_dsim_read(dsi, DSIM_ESCMODE_REG); in samsung_dsim_init_link()
977 samsung_dsim_write(dsi, DSIM_ESCMODE_REG, reg); in samsung_dsim_init_link()
980 samsung_dsim_write(dsi, DSIM_TIMEOUT_REG, reg); in samsung_dsim_init_link()
985 static void samsung_dsim_set_display_mode(struct samsung_dsim *dsi) in samsung_dsim_set_display_mode() argument
987 struct drm_display_mode *m = &dsi->mode; in samsung_dsim_set_display_mode()
988 unsigned int num_bits_resol = dsi->driver_data->num_bits_resol; in samsung_dsim_set_display_mode()
991 if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO) { in samsung_dsim_set_display_mode()
992 u64 byte_clk = dsi->hs_clock / 8; in samsung_dsim_set_display_mode()
1004 dev_dbg(dsi->dev, "calculated hfp: %u, hbp: %u, hsa: %u", in samsung_dsim_set_display_mode()
1010 samsung_dsim_write(dsi, DSIM_MVPORCH_REG, reg); in samsung_dsim_set_display_mode()
1013 samsung_dsim_write(dsi, DSIM_MHPORCH_REG, reg); in samsung_dsim_set_display_mode()
1017 samsung_dsim_write(dsi, DSIM_MSYNC_REG, reg); in samsung_dsim_set_display_mode()
1022 samsung_dsim_write(dsi, DSIM_MDRESOL_REG, reg); in samsung_dsim_set_display_mode()
1024 dev_dbg(dsi->dev, "LCD size = %dx%d\n", m->hdisplay, m->vdisplay); in samsung_dsim_set_display_mode()
1027 static void samsung_dsim_set_display_enable(struct samsung_dsim *dsi, bool enable) in samsung_dsim_set_display_enable() argument
1031 reg = samsung_dsim_read(dsi, DSIM_MDRESOL_REG); in samsung_dsim_set_display_enable()
1036 samsung_dsim_write(dsi, DSIM_MDRESOL_REG, reg); in samsung_dsim_set_display_enable()
1039 static int samsung_dsim_wait_for_hdr_fifo(struct samsung_dsim *dsi) in samsung_dsim_wait_for_hdr_fifo() argument
1044 u32 reg = samsung_dsim_read(dsi, DSIM_FIFOCTRL_REG); in samsung_dsim_wait_for_hdr_fifo()
1046 if (!dsi->driver_data->has_broken_fifoctrl_emptyhdr) { in samsung_dsim_wait_for_hdr_fifo()
1068 static void samsung_dsim_set_cmd_lpm(struct samsung_dsim *dsi, bool lpm) in samsung_dsim_set_cmd_lpm() argument
1070 u32 v = samsung_dsim_read(dsi, DSIM_ESCMODE_REG); in samsung_dsim_set_cmd_lpm()
1077 samsung_dsim_write(dsi, DSIM_ESCMODE_REG, v); in samsung_dsim_set_cmd_lpm()
1080 static void samsung_dsim_force_bta(struct samsung_dsim *dsi) in samsung_dsim_force_bta() argument
1082 u32 v = samsung_dsim_read(dsi, DSIM_ESCMODE_REG); in samsung_dsim_force_bta()
1085 samsung_dsim_write(dsi, DSIM_ESCMODE_REG, v); in samsung_dsim_force_bta()
1088 static void samsung_dsim_send_to_fifo(struct samsung_dsim *dsi, in samsung_dsim_send_to_fifo() argument
1091 struct device *dev = dsi->dev; in samsung_dsim_send_to_fifo()
1109 samsung_dsim_write(dsi, DSIM_PAYLOAD_REG, reg); in samsung_dsim_send_to_fifo()
1124 samsung_dsim_write(dsi, DSIM_PAYLOAD_REG, reg); in samsung_dsim_send_to_fifo()
1133 if (samsung_dsim_wait_for_hdr_fifo(dsi)) { in samsung_dsim_send_to_fifo()
1139 dsi->state & DSIM_STATE_CMD_LPM)) { in samsung_dsim_send_to_fifo()
1140 samsung_dsim_set_cmd_lpm(dsi, xfer->flags & MIPI_DSI_MSG_USE_LPM); in samsung_dsim_send_to_fifo()
1141 dsi->state ^= DSIM_STATE_CMD_LPM; in samsung_dsim_send_to_fifo()
1144 samsung_dsim_write(dsi, DSIM_PKTHDR_REG, reg); in samsung_dsim_send_to_fifo()
1147 samsung_dsim_force_bta(dsi); in samsung_dsim_send_to_fifo()
1150 static void samsung_dsim_read_from_fifo(struct samsung_dsim *dsi, in samsung_dsim_read_from_fifo() argument
1155 struct device *dev = dsi->dev; in samsung_dsim_read_from_fifo()
1160 reg = samsung_dsim_read(dsi, DSIM_RXFIFO_REG); in samsung_dsim_read_from_fifo()
1178 dev_err(dev, "DSI Error Report: 0x%04x\n", (reg >> 8) & 0xffff); in samsung_dsim_read_from_fifo()
1199 reg = samsung_dsim_read(dsi, DSIM_RXFIFO_REG); in samsung_dsim_read_from_fifo()
1209 reg = samsung_dsim_read(dsi, DSIM_RXFIFO_REG); in samsung_dsim_read_from_fifo()
1228 reg = samsung_dsim_read(dsi, DSIM_RXFIFO_REG); in samsung_dsim_read_from_fifo()
1234 static void samsung_dsim_transfer_start(struct samsung_dsim *dsi) in samsung_dsim_transfer_start() argument
1241 spin_lock_irqsave(&dsi->transfer_lock, flags); in samsung_dsim_transfer_start()
1243 if (list_empty(&dsi->transfer_list)) { in samsung_dsim_transfer_start()
1244 spin_unlock_irqrestore(&dsi->transfer_lock, flags); in samsung_dsim_transfer_start()
1248 xfer = list_first_entry(&dsi->transfer_list, in samsung_dsim_transfer_start()
1251 spin_unlock_irqrestore(&dsi->transfer_lock, flags); in samsung_dsim_transfer_start()
1258 samsung_dsim_send_to_fifo(dsi, xfer); in samsung_dsim_transfer_start()
1266 spin_lock_irqsave(&dsi->transfer_lock, flags); in samsung_dsim_transfer_start()
1269 start = !list_empty(&dsi->transfer_list); in samsung_dsim_transfer_start()
1271 spin_unlock_irqrestore(&dsi->transfer_lock, flags); in samsung_dsim_transfer_start()
1277 static bool samsung_dsim_transfer_finish(struct samsung_dsim *dsi) in samsung_dsim_transfer_finish() argument
1283 spin_lock_irqsave(&dsi->transfer_lock, flags); in samsung_dsim_transfer_finish()
1285 if (list_empty(&dsi->transfer_list)) { in samsung_dsim_transfer_finish()
1286 spin_unlock_irqrestore(&dsi->transfer_lock, flags); in samsung_dsim_transfer_finish()
1290 xfer = list_first_entry(&dsi->transfer_list, in samsung_dsim_transfer_finish()
1293 spin_unlock_irqrestore(&dsi->transfer_lock, flags); in samsung_dsim_transfer_finish()
1295 dev_dbg(dsi->dev, in samsung_dsim_transfer_finish()
1304 samsung_dsim_read_from_fifo(dsi, xfer); in samsung_dsim_transfer_finish()
1309 spin_lock_irqsave(&dsi->transfer_lock, flags); in samsung_dsim_transfer_finish()
1312 start = !list_empty(&dsi->transfer_list); in samsung_dsim_transfer_finish()
1314 spin_unlock_irqrestore(&dsi->transfer_lock, flags); in samsung_dsim_transfer_finish()
1323 static void samsung_dsim_remove_transfer(struct samsung_dsim *dsi, in samsung_dsim_remove_transfer() argument
1329 spin_lock_irqsave(&dsi->transfer_lock, flags); in samsung_dsim_remove_transfer()
1331 if (!list_empty(&dsi->transfer_list) && in samsung_dsim_remove_transfer()
1332 xfer == list_first_entry(&dsi->transfer_list, in samsung_dsim_remove_transfer()
1335 start = !list_empty(&dsi->transfer_list); in samsung_dsim_remove_transfer()
1336 spin_unlock_irqrestore(&dsi->transfer_lock, flags); in samsung_dsim_remove_transfer()
1338 samsung_dsim_transfer_start(dsi); in samsung_dsim_remove_transfer()
1344 spin_unlock_irqrestore(&dsi->transfer_lock, flags); in samsung_dsim_remove_transfer()
1347 static int samsung_dsim_transfer(struct samsung_dsim *dsi, in samsung_dsim_transfer() argument
1358 spin_lock_irqsave(&dsi->transfer_lock, flags); in samsung_dsim_transfer()
1360 stopped = list_empty(&dsi->transfer_list); in samsung_dsim_transfer()
1361 list_add_tail(&xfer->list, &dsi->transfer_list); in samsung_dsim_transfer()
1363 spin_unlock_irqrestore(&dsi->transfer_lock, flags); in samsung_dsim_transfer()
1366 samsung_dsim_transfer_start(dsi); in samsung_dsim_transfer()
1373 samsung_dsim_remove_transfer(dsi, xfer); in samsung_dsim_transfer()
1374 dev_err(dsi->dev, "xfer timed out: %*ph %*ph\n", 4, pkt->header, in samsung_dsim_transfer()
1385 struct samsung_dsim *dsi = dev_id; in samsung_dsim_irq() local
1388 status = samsung_dsim_read(dsi, DSIM_INTSRC_REG); in samsung_dsim_irq()
1393 dev_warn(dsi->dev, "spurious interrupt\n"); in samsung_dsim_irq()
1396 samsung_dsim_write(dsi, DSIM_INTSRC_REG, status); in samsung_dsim_irq()
1404 samsung_dsim_write(dsi, DSIM_INTMSK_REG, mask); in samsung_dsim_irq()
1405 complete(&dsi->completed); in samsung_dsim_irq()
1413 if (samsung_dsim_transfer_finish(dsi)) in samsung_dsim_irq()
1414 samsung_dsim_transfer_start(dsi); in samsung_dsim_irq()
1419 static void samsung_dsim_enable_irq(struct samsung_dsim *dsi) in samsung_dsim_enable_irq() argument
1421 enable_irq(dsi->irq); in samsung_dsim_enable_irq()
1423 if (dsi->te_gpio) in samsung_dsim_enable_irq()
1424 enable_irq(gpiod_to_irq(dsi->te_gpio)); in samsung_dsim_enable_irq()
1427 static void samsung_dsim_disable_irq(struct samsung_dsim *dsi) in samsung_dsim_disable_irq() argument
1429 if (dsi->te_gpio) in samsung_dsim_disable_irq()
1430 disable_irq(gpiod_to_irq(dsi->te_gpio)); in samsung_dsim_disable_irq()
1432 disable_irq(dsi->irq); in samsung_dsim_disable_irq()
1435 static int samsung_dsim_init(struct samsung_dsim *dsi) in samsung_dsim_init() argument
1437 const struct samsung_dsim_driver_data *driver_data = dsi->driver_data; in samsung_dsim_init()
1439 if (dsi->state & DSIM_STATE_INITIALIZED) in samsung_dsim_init()
1442 samsung_dsim_reset(dsi); in samsung_dsim_init()
1443 samsung_dsim_enable_irq(dsi); in samsung_dsim_init()
1446 samsung_dsim_enable_lane(dsi, BIT(dsi->lanes) - 1); in samsung_dsim_init()
1448 samsung_dsim_enable_clock(dsi); in samsung_dsim_init()
1450 samsung_dsim_wait_for_reset(dsi); in samsung_dsim_init()
1451 samsung_dsim_set_phy_ctrl(dsi); in samsung_dsim_init()
1452 samsung_dsim_init_link(dsi); in samsung_dsim_init()
1454 dsi->state |= DSIM_STATE_INITIALIZED; in samsung_dsim_init()
1462 struct samsung_dsim *dsi = bridge_to_dsi(bridge); in samsung_dsim_atomic_pre_enable() local
1465 if (dsi->state & DSIM_STATE_ENABLED) in samsung_dsim_atomic_pre_enable()
1468 ret = pm_runtime_resume_and_get(dsi->dev); in samsung_dsim_atomic_pre_enable()
1470 dev_err(dsi->dev, "failed to enable DSI device.\n"); in samsung_dsim_atomic_pre_enable()
1474 dsi->state |= DSIM_STATE_ENABLED; in samsung_dsim_atomic_pre_enable()
1478 * the host initialization during DSI transfer. in samsung_dsim_atomic_pre_enable()
1480 if (!samsung_dsim_hw_is_exynos(dsi->plat_data->hw_type)) { in samsung_dsim_atomic_pre_enable()
1481 ret = samsung_dsim_init(dsi); in samsung_dsim_atomic_pre_enable()
1490 struct samsung_dsim *dsi = bridge_to_dsi(bridge); in samsung_dsim_atomic_enable() local
1492 samsung_dsim_set_display_mode(dsi); in samsung_dsim_atomic_enable()
1493 samsung_dsim_set_display_enable(dsi, true); in samsung_dsim_atomic_enable()
1495 dsi->state |= DSIM_STATE_VIDOUT_AVAILABLE; in samsung_dsim_atomic_enable()
1501 struct samsung_dsim *dsi = bridge_to_dsi(bridge); in samsung_dsim_atomic_disable() local
1503 if (!(dsi->state & DSIM_STATE_ENABLED)) in samsung_dsim_atomic_disable()
1506 samsung_dsim_set_display_enable(dsi, false); in samsung_dsim_atomic_disable()
1507 dsi->state &= ~DSIM_STATE_VIDOUT_AVAILABLE; in samsung_dsim_atomic_disable()
1513 struct samsung_dsim *dsi = bridge_to_dsi(bridge); in samsung_dsim_atomic_post_disable() local
1515 dsi->state &= ~DSIM_STATE_ENABLED; in samsung_dsim_atomic_post_disable()
1516 pm_runtime_put_sync(dsi->dev); in samsung_dsim_atomic_post_disable()
1521 * AN13573 i.MX 8/RT MIPI DSI/CSI-2, Rev. 0, 21 March 2022
1523 * Table 14. DSI pixel packing formats
1584 struct samsung_dsim *dsi = bridge_to_dsi(bridge); in samsung_dsim_atomic_check() local
1601 if (dsi->plat_data->hw_type == DSIM_TYPE_IMX8MM) { in samsung_dsim_atomic_check()
1604 } else if (dsi->plat_data->hw_type == DSIM_TYPE_IMX8MP) { in samsung_dsim_atomic_check()
1619 if (dsi->lanes > 1) { in samsung_dsim_atomic_check()
1621 int remainder = hfp % dsi->lanes; in samsung_dsim_atomic_check()
1637 struct samsung_dsim *dsi = bridge_to_dsi(bridge); in samsung_dsim_mode_set() local
1639 drm_mode_copy(&dsi->mode, adjusted_mode); in samsung_dsim_mode_set()
1645 struct samsung_dsim *dsi = bridge_to_dsi(bridge); in samsung_dsim_attach() local
1647 return drm_bridge_attach(bridge->encoder, dsi->out_bridge, bridge, in samsung_dsim_attach()
1667 struct samsung_dsim *dsi = (struct samsung_dsim *)dev_id; in samsung_dsim_te_irq_handler() local
1668 const struct samsung_dsim_plat_data *pdata = dsi->plat_data; in samsung_dsim_te_irq_handler()
1671 return pdata->host_ops->te_irq_handler(dsi); in samsung_dsim_te_irq_handler()
1676 static int samsung_dsim_register_te_irq(struct samsung_dsim *dsi, struct device *dev) in samsung_dsim_register_te_irq() argument
1681 dsi->te_gpio = devm_gpiod_get_optional(dev, "te", GPIOD_IN); in samsung_dsim_register_te_irq()
1682 if (!dsi->te_gpio) in samsung_dsim_register_te_irq()
1684 else if (IS_ERR(dsi->te_gpio)) in samsung_dsim_register_te_irq()
1685 return dev_err_probe(dev, PTR_ERR(dsi->te_gpio), "failed to get te GPIO\n"); in samsung_dsim_register_te_irq()
1687 te_gpio_irq = gpiod_to_irq(dsi->te_gpio); in samsung_dsim_register_te_irq()
1690 IRQF_TRIGGER_RISING | IRQF_NO_AUTOEN, "TE", dsi); in samsung_dsim_register_te_irq()
1692 dev_err(dsi->dev, "request interrupt failed with %d\n", ret); in samsung_dsim_register_te_irq()
1693 gpiod_put(dsi->te_gpio); in samsung_dsim_register_te_irq()
1703 struct samsung_dsim *dsi = host_to_dsi(host); in samsung_dsim_host_attach() local
1704 const struct samsung_dsim_plat_data *pdata = dsi->plat_data; in samsung_dsim_host_attach()
1705 struct device *dev = dsi->dev; in samsung_dsim_host_attach()
1713 * through the upstream device (ie, MIPI-DCS for a MIPI-DSI device). in samsung_dsim_host_attach()
1743 dsi->out_bridge = devm_drm_panel_bridge_add(dev, panel); in samsung_dsim_host_attach()
1745 dsi->out_bridge = of_drm_find_bridge(remote); in samsung_dsim_host_attach()
1746 if (!dsi->out_bridge) in samsung_dsim_host_attach()
1747 dsi->out_bridge = ERR_PTR(-EINVAL); in samsung_dsim_host_attach()
1752 if (IS_ERR(dsi->out_bridge)) { in samsung_dsim_host_attach()
1753 ret = PTR_ERR(dsi->out_bridge); in samsung_dsim_host_attach()
1763 drm_bridge_add(&dsi->bridge); in samsung_dsim_host_attach()
1768 * If attached panel device is for command mode one, dsi should register in samsung_dsim_host_attach()
1772 ret = samsung_dsim_register_te_irq(dsi, &device->dev); in samsung_dsim_host_attach()
1778 ret = pdata->host_ops->attach(dsi, device); in samsung_dsim_host_attach()
1783 dsi->lanes = device->lanes; in samsung_dsim_host_attach()
1784 dsi->format = device->format; in samsung_dsim_host_attach()
1785 dsi->mode_flags = device->mode_flags; in samsung_dsim_host_attach()
1790 static void samsung_dsim_unregister_te_irq(struct samsung_dsim *dsi) in samsung_dsim_unregister_te_irq() argument
1792 if (dsi->te_gpio) { in samsung_dsim_unregister_te_irq()
1793 free_irq(gpiod_to_irq(dsi->te_gpio), dsi); in samsung_dsim_unregister_te_irq()
1794 gpiod_put(dsi->te_gpio); in samsung_dsim_unregister_te_irq()
1801 struct samsung_dsim *dsi = host_to_dsi(host); in samsung_dsim_host_detach() local
1802 const struct samsung_dsim_plat_data *pdata = dsi->plat_data; in samsung_dsim_host_detach()
1804 dsi->out_bridge = NULL; in samsung_dsim_host_detach()
1807 pdata->host_ops->detach(dsi, device); in samsung_dsim_host_detach()
1809 samsung_dsim_unregister_te_irq(dsi); in samsung_dsim_host_detach()
1811 drm_bridge_remove(&dsi->bridge); in samsung_dsim_host_detach()
1819 struct samsung_dsim *dsi = host_to_dsi(host); in samsung_dsim_host_transfer() local
1823 if (!(dsi->state & DSIM_STATE_ENABLED)) in samsung_dsim_host_transfer()
1826 ret = samsung_dsim_init(dsi); in samsung_dsim_host_transfer()
1838 ret = samsung_dsim_transfer(dsi, &xfer); in samsung_dsim_host_transfer()
1859 static int samsung_dsim_parse_dt(struct samsung_dsim *dsi) in samsung_dsim_parse_dt() argument
1861 struct device *dev = dsi->dev; in samsung_dsim_parse_dt()
1868 &dsi->pll_clk_rate, 1); in samsung_dsim_parse_dt()
1872 dsi->pll_clk = devm_clk_get(dev, "sclk_mipi"); in samsung_dsim_parse_dt()
1873 if (IS_ERR(dsi->pll_clk)) in samsung_dsim_parse_dt()
1874 return PTR_ERR(dsi->pll_clk); in samsung_dsim_parse_dt()
1879 &dsi->burst_clk_rate, 1); in samsung_dsim_parse_dt()
1882 dsi->burst_clk_rate = 0; in samsung_dsim_parse_dt()
1886 &dsi->esc_clk_rate, 0); in samsung_dsim_parse_dt()
1898 DRM_DEV_ERROR(dsi->dev, "Data lanes polarities do not match"); in samsung_dsim_parse_dt()
1901 dsi->swap_dn_dp_clk = true; in samsung_dsim_parse_dt()
1903 dsi->swap_dn_dp_data = true; in samsung_dsim_parse_dt()
1909 static int generic_dsim_register_host(struct samsung_dsim *dsi) in generic_dsim_register_host() argument
1911 return mipi_dsi_host_register(&dsi->dsi_host); in generic_dsim_register_host()
1914 static void generic_dsim_unregister_host(struct samsung_dsim *dsi) in generic_dsim_unregister_host() argument
1916 mipi_dsi_host_unregister(&dsi->dsi_host); in generic_dsim_unregister_host()
1935 struct samsung_dsim *dsi; in samsung_dsim_probe() local
1938 dsi = devm_kzalloc(dev, sizeof(*dsi), GFP_KERNEL); in samsung_dsim_probe()
1939 if (!dsi) in samsung_dsim_probe()
1942 init_completion(&dsi->completed); in samsung_dsim_probe()
1943 spin_lock_init(&dsi->transfer_lock); in samsung_dsim_probe()
1944 INIT_LIST_HEAD(&dsi->transfer_list); in samsung_dsim_probe()
1946 dsi->dsi_host.ops = &samsung_dsim_ops; in samsung_dsim_probe()
1947 dsi->dsi_host.dev = dev; in samsung_dsim_probe()
1949 dsi->dev = dev; in samsung_dsim_probe()
1950 dsi->plat_data = of_device_get_match_data(dev); in samsung_dsim_probe()
1951 dsi->driver_data = samsung_dsim_types[dsi->plat_data->hw_type]; in samsung_dsim_probe()
1953 dsi->supplies[0].supply = "vddcore"; in samsung_dsim_probe()
1954 dsi->supplies[1].supply = "vddio"; in samsung_dsim_probe()
1955 ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(dsi->supplies), in samsung_dsim_probe()
1956 dsi->supplies); in samsung_dsim_probe()
1960 dsi->clks = devm_kcalloc(dev, dsi->driver_data->num_clks, in samsung_dsim_probe()
1961 sizeof(*dsi->clks), GFP_KERNEL); in samsung_dsim_probe()
1962 if (!dsi->clks) in samsung_dsim_probe()
1965 for (i = 0; i < dsi->driver_data->num_clks; i++) { in samsung_dsim_probe()
1966 dsi->clks[i] = devm_clk_get(dev, clk_names[i]); in samsung_dsim_probe()
1967 if (IS_ERR(dsi->clks[i])) { in samsung_dsim_probe()
1969 dsi->clks[i] = devm_clk_get(dev, OLD_SCLK_MIPI_CLK_NAME); in samsung_dsim_probe()
1970 if (!IS_ERR(dsi->clks[i])) in samsung_dsim_probe()
1975 return PTR_ERR(dsi->clks[i]); in samsung_dsim_probe()
1979 dsi->reg_base = devm_platform_ioremap_resource(pdev, 0); in samsung_dsim_probe()
1980 if (IS_ERR(dsi->reg_base)) in samsung_dsim_probe()
1981 return PTR_ERR(dsi->reg_base); in samsung_dsim_probe()
1983 dsi->phy = devm_phy_optional_get(dev, "dsim"); in samsung_dsim_probe()
1984 if (IS_ERR(dsi->phy)) { in samsung_dsim_probe()
1986 return PTR_ERR(dsi->phy); in samsung_dsim_probe()
1989 dsi->irq = platform_get_irq(pdev, 0); in samsung_dsim_probe()
1990 if (dsi->irq < 0) in samsung_dsim_probe()
1991 return dsi->irq; in samsung_dsim_probe()
1993 ret = devm_request_threaded_irq(dev, dsi->irq, NULL, in samsung_dsim_probe()
1996 dev_name(dev), dsi); in samsung_dsim_probe()
1998 dev_err(dev, "failed to request dsi irq\n"); in samsung_dsim_probe()
2002 ret = samsung_dsim_parse_dt(dsi); in samsung_dsim_probe()
2006 platform_set_drvdata(pdev, dsi); in samsung_dsim_probe()
2010 dsi->bridge.funcs = &samsung_dsim_bridge_funcs; in samsung_dsim_probe()
2011 dsi->bridge.of_node = dev->of_node; in samsung_dsim_probe()
2012 dsi->bridge.type = DRM_MODE_CONNECTOR_DSI; in samsung_dsim_probe()
2015 if (dsi->plat_data->hw_type == DSIM_TYPE_IMX8MM) in samsung_dsim_probe()
2016 dsi->bridge.timings = &samsung_dsim_bridge_timings_de_low; in samsung_dsim_probe()
2018 dsi->bridge.timings = &samsung_dsim_bridge_timings_de_high; in samsung_dsim_probe()
2020 if (dsi->plat_data->host_ops && dsi->plat_data->host_ops->register_host) { in samsung_dsim_probe()
2021 ret = dsi->plat_data->host_ops->register_host(dsi); in samsung_dsim_probe()
2037 struct samsung_dsim *dsi = platform_get_drvdata(pdev); in samsung_dsim_remove() local
2041 if (dsi->plat_data->host_ops && dsi->plat_data->host_ops->unregister_host) in samsung_dsim_remove()
2042 dsi->plat_data->host_ops->unregister_host(dsi); in samsung_dsim_remove()
2048 struct samsung_dsim *dsi = dev_get_drvdata(dev); in samsung_dsim_suspend() local
2049 const struct samsung_dsim_driver_data *driver_data = dsi->driver_data; in samsung_dsim_suspend()
2054 if (dsi->state & DSIM_STATE_INITIALIZED) { in samsung_dsim_suspend()
2055 dsi->state &= ~DSIM_STATE_INITIALIZED; in samsung_dsim_suspend()
2057 samsung_dsim_disable_clock(dsi); in samsung_dsim_suspend()
2059 samsung_dsim_disable_irq(dsi); in samsung_dsim_suspend()
2062 dsi->state &= ~DSIM_STATE_CMD_LPM; in samsung_dsim_suspend()
2064 phy_power_off(dsi->phy); in samsung_dsim_suspend()
2067 clk_disable_unprepare(dsi->clks[i]); in samsung_dsim_suspend()
2069 ret = regulator_bulk_disable(ARRAY_SIZE(dsi->supplies), dsi->supplies); in samsung_dsim_suspend()
2071 dev_err(dsi->dev, "cannot disable regulators %d\n", ret); in samsung_dsim_suspend()
2078 struct samsung_dsim *dsi = dev_get_drvdata(dev); in samsung_dsim_resume() local
2079 const struct samsung_dsim_driver_data *driver_data = dsi->driver_data; in samsung_dsim_resume()
2082 ret = regulator_bulk_enable(ARRAY_SIZE(dsi->supplies), dsi->supplies); in samsung_dsim_resume()
2084 dev_err(dsi->dev, "cannot enable regulators %d\n", ret); in samsung_dsim_resume()
2089 ret = clk_prepare_enable(dsi->clks[i]); in samsung_dsim_resume()
2094 ret = phy_power_on(dsi->phy); in samsung_dsim_resume()
2096 dev_err(dsi->dev, "cannot enable phy %d\n", ret); in samsung_dsim_resume()
2104 clk_disable_unprepare(dsi->clks[i]); in samsung_dsim_resume()
2105 regulator_bulk_disable(ARRAY_SIZE(dsi->supplies), dsi->supplies); in samsung_dsim_resume()