2 * Copyright © 2014 Intel Corporation
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
23 * Author: Shobhit Kumar <shobhit.kumar@intel.com>
28 #include <drm/drm_crtc.h>
29 #include <drm/drm_edid.h>
30 #include <drm/i915_drm.h>
31 #include <drm/drm_panel.h>
32 #include <linux/slab.h>
33 #include <video/mipi_display.h>
34 #include <asm/intel-mid.h>
35 #include <video/mipi_display.h>
37 #include "intel_drv.h"
38 #include "intel_dsi.h"
39 #include "intel_dsi_cmd.h"
42 struct drm_panel panel;
43 struct intel_dsi *intel_dsi;
46 static inline struct vbt_panel *to_vbt_panel(struct drm_panel *panel)
48 return container_of(panel, struct vbt_panel, panel);
51 #define MIPI_TRANSFER_MODE_SHIFT 0
52 #define MIPI_VIRTUAL_CHANNEL_SHIFT 1
53 #define MIPI_PORT_SHIFT 3
55 #define PREPARE_CNT_MAX 0x3F
56 #define EXIT_ZERO_CNT_MAX 0x3F
57 #define CLK_ZERO_CNT_MAX 0xFF
58 #define TRAIL_CNT_MAX 0x1F
60 #define NS_KHZ_RATIO 1000000
62 #define GPI0_NC_0_HV_DDI0_HPD 0x4130
63 #define GPIO_NC_0_HV_DDI0_PAD 0x4138
64 #define GPIO_NC_1_HV_DDI0_DDC_SDA 0x4120
65 #define GPIO_NC_1_HV_DDI0_DDC_SDA_PAD 0x4128
66 #define GPIO_NC_2_HV_DDI0_DDC_SCL 0x4110
67 #define GPIO_NC_2_HV_DDI0_DDC_SCL_PAD 0x4118
68 #define GPIO_NC_3_PANEL0_VDDEN 0x4140
69 #define GPIO_NC_3_PANEL0_VDDEN_PAD 0x4148
70 #define GPIO_NC_4_PANEL0_BLKEN 0x4150
71 #define GPIO_NC_4_PANEL0_BLKEN_PAD 0x4158
72 #define GPIO_NC_5_PANEL0_BLKCTL 0x4160
73 #define GPIO_NC_5_PANEL0_BLKCTL_PAD 0x4168
74 #define GPIO_NC_6_PCONF0 0x4180
75 #define GPIO_NC_6_PAD 0x4188
76 #define GPIO_NC_7_PCONF0 0x4190
77 #define GPIO_NC_7_PAD 0x4198
78 #define GPIO_NC_8_PCONF0 0x4170
79 #define GPIO_NC_8_PAD 0x4178
80 #define GPIO_NC_9_PCONF0 0x4100
81 #define GPIO_NC_9_PAD 0x4108
82 #define GPIO_NC_10_PCONF0 0x40E0
83 #define GPIO_NC_10_PAD 0x40E8
84 #define GPIO_NC_11_PCONF0 0x40F0
85 #define GPIO_NC_11_PAD 0x40F8
93 static struct gpio_table gtable[] = {
94 { GPI0_NC_0_HV_DDI0_HPD, GPIO_NC_0_HV_DDI0_PAD, 0 },
95 { GPIO_NC_1_HV_DDI0_DDC_SDA, GPIO_NC_1_HV_DDI0_DDC_SDA_PAD, 0 },
96 { GPIO_NC_2_HV_DDI0_DDC_SCL, GPIO_NC_2_HV_DDI0_DDC_SCL_PAD, 0 },
97 { GPIO_NC_3_PANEL0_VDDEN, GPIO_NC_3_PANEL0_VDDEN_PAD, 0 },
98 { GPIO_NC_4_PANEL0_BLKEN, GPIO_NC_4_PANEL0_BLKEN_PAD, 0 },
99 { GPIO_NC_5_PANEL0_BLKCTL, GPIO_NC_5_PANEL0_BLKCTL_PAD, 0 },
100 { GPIO_NC_6_PCONF0, GPIO_NC_6_PAD, 0 },
101 { GPIO_NC_7_PCONF0, GPIO_NC_7_PAD, 0 },
102 { GPIO_NC_8_PCONF0, GPIO_NC_8_PAD, 0 },
103 { GPIO_NC_9_PCONF0, GPIO_NC_9_PAD, 0 },
104 { GPIO_NC_10_PCONF0, GPIO_NC_10_PAD, 0},
105 { GPIO_NC_11_PCONF0, GPIO_NC_11_PAD, 0}
108 static inline enum port intel_dsi_seq_port_to_port(u8 port)
110 return port ? PORT_C : PORT_A;
113 static const u8 *mipi_exec_send_packet(struct intel_dsi *intel_dsi,
116 u8 type, byte, mode, vc, seq_port;
121 mode = (byte >> MIPI_TRANSFER_MODE_SHIFT) & 0x1;
122 vc = (byte >> MIPI_VIRTUAL_CHANNEL_SHIFT) & 0x3;
123 seq_port = (byte >> MIPI_PORT_SHIFT) & 0x3;
125 /* For DSI single link on Port A & C, the seq_port value which is
126 * parsed from Sequence Block#53 of VBT has been set to 0
127 * Now, read/write of packets for the DSI single link on Port A and
128 * Port C will based on the DVO port from VBT block 2.
130 if (intel_dsi->ports == (1 << PORT_C))
133 port = intel_dsi_seq_port_to_port(seq_port);
135 intel_dsi->hs = mode;
137 /* get packet type and increment the pointer */
140 len = *((u16 *) data);
144 case MIPI_DSI_GENERIC_SHORT_WRITE_0_PARAM:
145 dsi_vc_generic_write_0(intel_dsi, vc, port);
147 case MIPI_DSI_GENERIC_SHORT_WRITE_1_PARAM:
148 dsi_vc_generic_write_1(intel_dsi, vc, *data, port);
150 case MIPI_DSI_GENERIC_SHORT_WRITE_2_PARAM:
151 dsi_vc_generic_write_2(intel_dsi, vc, *data, *(data + 1), port);
153 case MIPI_DSI_GENERIC_READ_REQUEST_0_PARAM:
154 case MIPI_DSI_GENERIC_READ_REQUEST_1_PARAM:
155 case MIPI_DSI_GENERIC_READ_REQUEST_2_PARAM:
156 DRM_DEBUG_DRIVER("Generic Read not yet implemented or used\n");
158 case MIPI_DSI_GENERIC_LONG_WRITE:
159 dsi_vc_generic_write(intel_dsi, vc, data, len, port);
161 case MIPI_DSI_DCS_SHORT_WRITE:
162 dsi_vc_dcs_write_0(intel_dsi, vc, *data, port);
164 case MIPI_DSI_DCS_SHORT_WRITE_PARAM:
165 dsi_vc_dcs_write_1(intel_dsi, vc, *data, *(data + 1), port);
167 case MIPI_DSI_DCS_READ:
168 DRM_DEBUG_DRIVER("DCS Read not yet implemented or used\n");
170 case MIPI_DSI_DCS_LONG_WRITE:
171 dsi_vc_dcs_write(intel_dsi, vc, data, len, port);
180 static const u8 *mipi_exec_delay(struct intel_dsi *intel_dsi, const u8 *data)
182 u32 delay = *((const u32 *) data);
184 usleep_range(delay, delay + 10);
190 static const u8 *mipi_exec_gpio(struct intel_dsi *intel_dsi, const u8 *data)
195 struct drm_device *dev = intel_dsi->base.base.dev;
196 struct drm_i915_private *dev_priv = dev->dev_private;
203 function = gtable[gpio].function_reg;
204 pad = gtable[gpio].pad_reg;
206 mutex_lock(&dev_priv->dpio_lock);
207 if (!gtable[gpio].init) {
208 /* program the function */
209 /* FIXME: remove constant below */
210 vlv_gpio_nc_write(dev_priv, function, 0x2000CC00);
211 gtable[gpio].init = 1;
217 vlv_gpio_nc_write(dev_priv, pad, val);
218 mutex_unlock(&dev_priv->dpio_lock);
223 typedef const u8 * (*fn_mipi_elem_exec)(struct intel_dsi *intel_dsi,
225 static const fn_mipi_elem_exec exec_elem[] = {
227 mipi_exec_send_packet,
230 NULL, /* status read; later */
234 * MIPI Sequence from VBT #53 parsing logic
235 * We have already separated each seqence during bios parsing
236 * Following is generic execution function for any sequence
239 static const char * const seq_name[] = {
241 "MIPI_SEQ_ASSERT_RESET",
243 "MIPI_SEQ_DISPLAY_ON",
244 "MIPI_SEQ_DISPLAY_OFF",
245 "MIPI_SEQ_DEASSERT_RESET"
248 static void generic_exec_sequence(struct intel_dsi *intel_dsi, const u8 *data)
250 fn_mipi_elem_exec mipi_elem_exec;
256 DRM_DEBUG_DRIVER("Starting MIPI sequence - %s\n", seq_name[*data]);
258 /* go to the first element of the sequence */
261 /* parse each byte till we reach end of sequence byte - 0x00 */
264 mipi_elem_exec = exec_elem[index];
265 if (!mipi_elem_exec) {
266 DRM_ERROR("Unsupported MIPI element, skipping sequence execution\n");
270 /* goto element payload */
273 /* execute the element specific rotines */
274 data = mipi_elem_exec(intel_dsi, data);
277 * After processing the element, data should point to
278 * next element or end of sequence
279 * check if have we reached end of sequence
286 static int vbt_panel_prepare(struct drm_panel *panel)
288 struct vbt_panel *vbt_panel = to_vbt_panel(panel);
289 struct intel_dsi *intel_dsi = vbt_panel->intel_dsi;
290 struct drm_device *dev = intel_dsi->base.base.dev;
291 struct drm_i915_private *dev_priv = dev->dev_private;
294 sequence = dev_priv->vbt.dsi.sequence[MIPI_SEQ_ASSERT_RESET];
295 generic_exec_sequence(intel_dsi, sequence);
297 sequence = dev_priv->vbt.dsi.sequence[MIPI_SEQ_INIT_OTP];
298 generic_exec_sequence(intel_dsi, sequence);
303 static int vbt_panel_unprepare(struct drm_panel *panel)
305 struct vbt_panel *vbt_panel = to_vbt_panel(panel);
306 struct intel_dsi *intel_dsi = vbt_panel->intel_dsi;
307 struct drm_device *dev = intel_dsi->base.base.dev;
308 struct drm_i915_private *dev_priv = dev->dev_private;
311 sequence = dev_priv->vbt.dsi.sequence[MIPI_SEQ_DEASSERT_RESET];
312 generic_exec_sequence(intel_dsi, sequence);
317 static int vbt_panel_enable(struct drm_panel *panel)
319 struct vbt_panel *vbt_panel = to_vbt_panel(panel);
320 struct intel_dsi *intel_dsi = vbt_panel->intel_dsi;
321 struct drm_device *dev = intel_dsi->base.base.dev;
322 struct drm_i915_private *dev_priv = dev->dev_private;
325 sequence = dev_priv->vbt.dsi.sequence[MIPI_SEQ_DISPLAY_ON];
326 generic_exec_sequence(intel_dsi, sequence);
331 static int vbt_panel_disable(struct drm_panel *panel)
333 struct vbt_panel *vbt_panel = to_vbt_panel(panel);
334 struct intel_dsi *intel_dsi = vbt_panel->intel_dsi;
335 struct drm_device *dev = intel_dsi->base.base.dev;
336 struct drm_i915_private *dev_priv = dev->dev_private;
339 sequence = dev_priv->vbt.dsi.sequence[MIPI_SEQ_DISPLAY_OFF];
340 generic_exec_sequence(intel_dsi, sequence);
345 static int vbt_panel_get_modes(struct drm_panel *panel)
347 struct vbt_panel *vbt_panel = to_vbt_panel(panel);
348 struct intel_dsi *intel_dsi = vbt_panel->intel_dsi;
349 struct drm_device *dev = intel_dsi->base.base.dev;
350 struct drm_i915_private *dev_priv = dev->dev_private;
351 struct drm_display_mode *mode;
353 if (!panel->connector)
356 mode = drm_mode_duplicate(dev, dev_priv->vbt.lfp_lvds_vbt_mode);
360 mode->type |= DRM_MODE_TYPE_PREFERRED;
362 drm_mode_probed_add(panel->connector, mode);
367 static const struct drm_panel_funcs vbt_panel_funcs = {
368 .disable = vbt_panel_disable,
369 .unprepare = vbt_panel_unprepare,
370 .prepare = vbt_panel_prepare,
371 .enable = vbt_panel_enable,
372 .get_modes = vbt_panel_get_modes,
375 struct drm_panel *vbt_panel_init(struct intel_dsi *intel_dsi, u16 panel_id)
377 struct drm_device *dev = intel_dsi->base.base.dev;
378 struct drm_i915_private *dev_priv = dev->dev_private;
379 struct mipi_config *mipi_config = dev_priv->vbt.dsi.config;
380 struct mipi_pps_data *pps = dev_priv->vbt.dsi.pps;
381 struct drm_display_mode *mode = dev_priv->vbt.lfp_lvds_vbt_mode;
382 struct vbt_panel *vbt_panel;
383 u32 bits_per_pixel = 24;
384 u32 tlpx_ns, extra_byte_count, bitrate, tlpx_ui;
386 u32 prepare_cnt, exit_zero_cnt, clk_zero_cnt, trail_cnt;
387 u32 ths_prepare_ns, tclk_trail_ns;
388 u32 tclk_prepare_clkzero, ths_prepare_hszero;
389 u32 lp_to_hs_switch, hs_to_lp_switch;
390 u32 pclk, computed_ddr;
391 u16 burst_mode_ratio;
395 intel_dsi->eotp_pkt = mipi_config->eot_pkt_disabled ? 0 : 1;
396 intel_dsi->clock_stop = mipi_config->enable_clk_stop ? 1 : 0;
397 intel_dsi->lane_count = mipi_config->lane_cnt + 1;
398 intel_dsi->pixel_format = mipi_config->videomode_color_format << 7;
399 intel_dsi->dual_link = mipi_config->dual_link;
400 intel_dsi->pixel_overlap = mipi_config->pixel_overlap;
402 if (intel_dsi->pixel_format == VID_MODE_FORMAT_RGB666)
404 else if (intel_dsi->pixel_format == VID_MODE_FORMAT_RGB565)
407 intel_dsi->operation_mode = mipi_config->is_cmd_mode;
408 intel_dsi->video_mode_format = mipi_config->video_transfer_mode;
409 intel_dsi->escape_clk_div = mipi_config->byte_clk_sel;
410 intel_dsi->lp_rx_timeout = mipi_config->lp_rx_timeout;
411 intel_dsi->turn_arnd_val = mipi_config->turn_around_timeout;
412 intel_dsi->rst_timer_val = mipi_config->device_reset_timer;
413 intel_dsi->init_count = mipi_config->master_init_timer;
414 intel_dsi->bw_timer = mipi_config->dbi_bw_timer;
415 intel_dsi->video_frmt_cfg_bits =
416 mipi_config->bta_enabled ? DISABLE_VIDEO_BTA : 0;
420 /* In dual link mode each port needs half of pixel clock */
421 if (intel_dsi->dual_link) {
424 /* we can enable pixel_overlap if needed by panel. In this
425 * case we need to increase the pixelclock for extra pixels
427 if (intel_dsi->dual_link == DSI_DUAL_LINK_FRONT_BACK) {
428 pclk += DIV_ROUND_UP(mode->vtotal *
429 intel_dsi->pixel_overlap *
435 * Target ddr frequency from VBT / non burst ddr freq
436 * multiply by 100 to preserve remainder
438 if (intel_dsi->video_mode_format == VIDEO_MODE_BURST) {
439 if (mipi_config->target_burst_mode_freq) {
441 (pclk * bits_per_pixel) / intel_dsi->lane_count;
443 if (mipi_config->target_burst_mode_freq <
445 DRM_ERROR("Burst mode freq is less than computed\n");
449 burst_mode_ratio = DIV_ROUND_UP(
450 mipi_config->target_burst_mode_freq * 100,
453 pclk = DIV_ROUND_UP(pclk * burst_mode_ratio, 100);
455 DRM_ERROR("Burst mode target is not set\n");
459 burst_mode_ratio = 100;
461 intel_dsi->burst_mode_ratio = burst_mode_ratio;
462 intel_dsi->pclk = pclk;
464 bitrate = (pclk * bits_per_pixel) / intel_dsi->lane_count;
466 switch (intel_dsi->escape_clk_div) {
482 switch (intel_dsi->lane_count) {
485 extra_byte_count = 2;
488 extra_byte_count = 4;
492 extra_byte_count = 3;
497 * ui(s) = 1/f [f in hz]
498 * ui(ns) = 10^9 / (f*10^6) [f in Mhz] -> 10^3/f(Mhz)
502 ui_num = NS_KHZ_RATIO;
505 tclk_prepare_clkzero = mipi_config->tclk_prepare_clkzero;
506 ths_prepare_hszero = mipi_config->ths_prepare_hszero;
510 * LP byte clock = TLPX/ (8UI)
512 intel_dsi->lp_byte_clk = DIV_ROUND_UP(tlpx_ns * ui_den, 8 * ui_num);
514 /* count values in UI = (ns value) * (bitrate / (2 * 10^6))
516 * Since txddrclkhs_i is 2xUI, all the count values programmed in
517 * DPHY param register are divided by 2
521 ths_prepare_ns = max(mipi_config->ths_prepare,
522 mipi_config->tclk_prepare);
523 prepare_cnt = DIV_ROUND_UP(ths_prepare_ns * ui_den, ui_num * 2);
525 /* exit zero count */
526 exit_zero_cnt = DIV_ROUND_UP(
527 (ths_prepare_hszero - ths_prepare_ns) * ui_den,
532 * Exit zero is unified val ths_zero and ths_exit
533 * minimum value for ths_exit = 110ns
534 * min (exit_zero_cnt * 2) = 110/UI
535 * exit_zero_cnt = 55/UI
537 if (exit_zero_cnt < (55 * ui_den / ui_num))
538 if ((55 * ui_den) % ui_num)
542 clk_zero_cnt = DIV_ROUND_UP(
543 (tclk_prepare_clkzero - ths_prepare_ns)
544 * ui_den, 2 * ui_num);
547 tclk_trail_ns = max(mipi_config->tclk_trail, mipi_config->ths_trail);
548 trail_cnt = DIV_ROUND_UP(tclk_trail_ns * ui_den, 2 * ui_num);
550 if (prepare_cnt > PREPARE_CNT_MAX ||
551 exit_zero_cnt > EXIT_ZERO_CNT_MAX ||
552 clk_zero_cnt > CLK_ZERO_CNT_MAX ||
553 trail_cnt > TRAIL_CNT_MAX)
554 DRM_DEBUG_DRIVER("Values crossing maximum limits, restricting to max values\n");
556 if (prepare_cnt > PREPARE_CNT_MAX)
557 prepare_cnt = PREPARE_CNT_MAX;
559 if (exit_zero_cnt > EXIT_ZERO_CNT_MAX)
560 exit_zero_cnt = EXIT_ZERO_CNT_MAX;
562 if (clk_zero_cnt > CLK_ZERO_CNT_MAX)
563 clk_zero_cnt = CLK_ZERO_CNT_MAX;
565 if (trail_cnt > TRAIL_CNT_MAX)
566 trail_cnt = TRAIL_CNT_MAX;
569 intel_dsi->dphy_reg = exit_zero_cnt << 24 | trail_cnt << 16 |
570 clk_zero_cnt << 8 | prepare_cnt;
573 * LP to HS switch count = 4TLPX + PREP_COUNT * 2 + EXIT_ZERO_COUNT * 2
574 * + 10UI + Extra Byte Count
576 * HS to LP switch count = THS-TRAIL + 2TLPX + Extra Byte Count
577 * Extra Byte Count is calculated according to number of lanes.
578 * High Low Switch Count is the Max of LP to HS and
579 * HS to LP switch count
582 tlpx_ui = DIV_ROUND_UP(tlpx_ns * ui_den, ui_num);
586 * The comment above does not match with the code */
587 lp_to_hs_switch = DIV_ROUND_UP(4 * tlpx_ui + prepare_cnt * 2 +
588 exit_zero_cnt * 2 + 10, 8);
590 hs_to_lp_switch = DIV_ROUND_UP(mipi_config->ths_trail + 2 * tlpx_ui, 8);
592 intel_dsi->hs_to_lp_count = max(lp_to_hs_switch, hs_to_lp_switch);
593 intel_dsi->hs_to_lp_count += extra_byte_count;
596 /* LP -> HS for clock lanes
597 * LP clk sync + LP11 + LP01 + tclk_prepare + tclk_zero +
599 * 2TPLX + 1TLPX + 1 TPLX(in ns) + prepare_cnt * 2 + clk_zero_cnt *
600 * 2(in UI) + extra byte count
601 * In byteclks = (4TLPX + prepare_cnt * 2 + clk_zero_cnt *2 (in UI)) /
602 * 8 + extra byte count
604 intel_dsi->clk_lp_to_hs_count =
606 4 * tlpx_ui + prepare_cnt * 2 +
610 intel_dsi->clk_lp_to_hs_count += extra_byte_count;
612 /* HS->LP for Clock Lanes
613 * Low Power clock synchronisations + 1Tx byteclk + tclk_trail +
615 * 2TLPX + 8UI + (trail_count*2)(in UI) + Extra byte count
616 * In byteclks = (2*TLpx(in UI) + trail_count*2 +8)(in UI)/8 +
619 intel_dsi->clk_hs_to_lp_count =
620 DIV_ROUND_UP(2 * tlpx_ui + trail_cnt * 2 + 8,
622 intel_dsi->clk_hs_to_lp_count += extra_byte_count;
624 DRM_DEBUG_KMS("Eot %s\n", intel_dsi->eotp_pkt ? "enabled" : "disabled");
625 DRM_DEBUG_KMS("Clockstop %s\n", intel_dsi->clock_stop ?
626 "disabled" : "enabled");
627 DRM_DEBUG_KMS("Mode %s\n", intel_dsi->operation_mode ? "command" : "video");
628 if (intel_dsi->dual_link == DSI_DUAL_LINK_FRONT_BACK)
629 DRM_DEBUG_KMS("Dual link: DSI_DUAL_LINK_FRONT_BACK\n");
630 else if (intel_dsi->dual_link == DSI_DUAL_LINK_PIXEL_ALT)
631 DRM_DEBUG_KMS("Dual link: DSI_DUAL_LINK_PIXEL_ALT\n");
633 DRM_DEBUG_KMS("Dual link: NONE\n");
634 DRM_DEBUG_KMS("Pixel Format %d\n", intel_dsi->pixel_format);
635 DRM_DEBUG_KMS("TLPX %d\n", intel_dsi->escape_clk_div);
636 DRM_DEBUG_KMS("LP RX Timeout 0x%x\n", intel_dsi->lp_rx_timeout);
637 DRM_DEBUG_KMS("Turnaround Timeout 0x%x\n", intel_dsi->turn_arnd_val);
638 DRM_DEBUG_KMS("Init Count 0x%x\n", intel_dsi->init_count);
639 DRM_DEBUG_KMS("HS to LP Count 0x%x\n", intel_dsi->hs_to_lp_count);
640 DRM_DEBUG_KMS("LP Byte Clock %d\n", intel_dsi->lp_byte_clk);
641 DRM_DEBUG_KMS("DBI BW Timer 0x%x\n", intel_dsi->bw_timer);
642 DRM_DEBUG_KMS("LP to HS Clock Count 0x%x\n", intel_dsi->clk_lp_to_hs_count);
643 DRM_DEBUG_KMS("HS to LP Clock Count 0x%x\n", intel_dsi->clk_hs_to_lp_count);
644 DRM_DEBUG_KMS("BTA %s\n",
645 intel_dsi->video_frmt_cfg_bits & DISABLE_VIDEO_BTA ?
646 "disabled" : "enabled");
648 /* delays in VBT are in unit of 100us, so need to convert
650 * Delay (100us) * 100 /1000 = Delay / 10 (ms) */
651 intel_dsi->backlight_off_delay = pps->bl_disable_delay / 10;
652 intel_dsi->backlight_on_delay = pps->bl_enable_delay / 10;
653 intel_dsi->panel_on_delay = pps->panel_on_delay / 10;
654 intel_dsi->panel_off_delay = pps->panel_off_delay / 10;
655 intel_dsi->panel_pwr_cycle_delay = pps->panel_power_cycle_delay / 10;
657 /* This is cheating a bit with the cleanup. */
658 vbt_panel = devm_kzalloc(dev->dev, sizeof(*vbt_panel), GFP_KERNEL);
660 vbt_panel->intel_dsi = intel_dsi;
661 drm_panel_init(&vbt_panel->panel);
662 vbt_panel->panel.funcs = &vbt_panel_funcs;
663 drm_panel_add(&vbt_panel->panel);
665 return &vbt_panel->panel;