2 * Copyright (C) 2014 ROCKCHIP, Inc.
3 * drivers/video/display/transmitter/rk32_mipi_dsi.c
4 * author: libing@rock-chips.com
5 * create date: 2014-04-10
6 * debug /sys/kernel/debug/mipidsi*
7 * This software is licensed under the terms of the GNU General Public
8 * License version 2, as published by the Free Software Foundation, and
9 * may be copied, distributed, and modified under those terms.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
18 #ifndef CONFIG_RK32_MIPI_DSI
22 #ifdef CONFIG_RK32_MIPI_DSI
23 #define MIPI_DSI_REGISTER_IO 0
24 #define CONFIG_MIPI_DSI_LINUX 0
26 #define DWC_DSI_VERSION 0x3133302A
27 #define DWC_DSI_VERSION_RK312x 0x3132312A
28 #define DWC_DSI_VERSION_ERR -1
30 #include <linux/kernel.h>
31 #include <linux/init.h>
32 #include <linux/platform_device.h>
33 #include <linux/slab.h>
34 #include <linux/rk_fb.h>
35 #include <linux/rk_screen.h>
36 #include <linux/delay.h>
37 #include <linux/clk.h>
38 #include <linux/interrupt.h>
39 #include <asm/div64.h>
42 #include <linux/debugfs.h>
43 #include <linux/seq_file.h>
44 #include <linux/regulator/machine.h>
46 #include <linux/dma-mapping.h>
48 #include "rk32_mipi_dsi.h"
49 #include <linux/rockchip/iomap.h>
50 #include <linux/rockchip/cpu.h>
52 #define MIPI_DBG(x...) /* printk(KERN_INFO x) */
54 #ifdef CONFIG_MIPI_DSI_LINUX
55 #define MIPI_TRACE(x...) /* printk(KERN_INFO x) */
57 #define MIPI_TRACE(...) \
68 *v1.0 : this driver is rk32 mipi dsi driver of rockchip;
69 *v1.1 : add test eye pattern;
73 #define RK_MIPI_DSI_VERSION_AND_TIME "rockchip mipi_dsi v1.1 2014-06-17"
75 static struct dsi *dsi0;
76 static struct dsi *dsi1;
78 static int rk32_mipi_dsi_is_active(void *arg);
79 static int rk32_mipi_dsi_enable_hs_clk(void *arg, u32 enable);
80 static int rk32_mipi_dsi_enable_video_mode(void *arg, u32 enable);
81 static int rk32_mipi_dsi_enable_command_mode(void *arg, u32 enable);
82 static int rk32_mipi_dsi_is_enable(void *arg, u32 enable);
83 static int rk32_mipi_power_down_DDR(void);
84 static int rk32_mipi_power_up_DDR(void);
85 int rk_mipi_screen_standby(u8 enable);
87 static int rk32_dsi_read_reg(struct dsi *dsi, u16 reg, u32 *pval)
89 if (dsi->ops.id == DWC_DSI_VERSION)
90 *pval = __raw_readl(dsi->host.membase + (reg - MIPI_DSI_HOST_OFFSET));
91 else if (dsi->ops.id == DWC_DSI_VERSION_RK312x) {
92 if (reg >= MIPI_DSI_HOST_OFFSET)
93 *pval = __raw_readl(dsi->host.membase + (reg - MIPI_DSI_HOST_OFFSET));
94 else if (reg >= MIPI_DSI_PHY_OFFSET)
95 *pval = __raw_readl(dsi->phy.membase + (reg - MIPI_DSI_PHY_OFFSET));
100 static int rk32_dsi_write_reg(struct dsi *dsi, u16 reg, u32 *pval)
102 if (dsi->ops.id == DWC_DSI_VERSION)
103 __raw_writel(*pval, dsi->host.membase + (reg - MIPI_DSI_HOST_OFFSET));
104 else if (dsi->ops.id == DWC_DSI_VERSION_RK312x) {
105 if (reg >= MIPI_DSI_HOST_OFFSET)
106 __raw_writel(*pval, dsi->host.membase + (reg - MIPI_DSI_HOST_OFFSET));
107 else if (reg >= MIPI_DSI_PHY_OFFSET)
108 __raw_writel(*pval, dsi->phy.membase + (reg - MIPI_DSI_PHY_OFFSET));
113 static int rk32_dsi_get_bits(struct dsi *dsi, u32 reg)
116 u32 bits = (reg >> 8) & 0xff;
117 u16 reg_addr = (reg >> 16) & 0xffff;
118 u8 offset = reg & 0xff;
121 bits = (1 << bits) - 1;
125 rk32_dsi_read_reg(dsi, reg_addr, &val);
131 static int rk32_dsi_set_bits(struct dsi *dsi, u32 data, u32 reg)
134 u32 bits = (reg >> 8) & 0xff;
135 u16 reg_addr = (reg >> 16) & 0xffff;
136 u8 offset = reg & 0xff;
139 bits = (1 << bits) - 1;
143 if (bits != 0xffffffff)
144 rk32_dsi_read_reg(dsi, reg_addr, &val);
146 val &= ~(bits << offset);
147 val |= (data & bits) << offset;
148 rk32_dsi_write_reg(dsi, reg_addr, &val);
151 MIPI_TRACE("%s error reg_addr:0x%04x, offset:%d, bits:0x%04x, value:0x%04x\n",
152 __func__, reg_addr, offset, bits, data);
157 static int rk32_dwc_phy_test_rd(struct dsi *dsi, unsigned char test_code)
160 rk32_dsi_set_bits(dsi, 1, phy_testclk);
161 rk32_dsi_set_bits(dsi, test_code, phy_testdin);
162 rk32_dsi_set_bits(dsi, 1, phy_testen);
163 rk32_dsi_set_bits(dsi, 0, phy_testclk);
164 rk32_dsi_set_bits(dsi, 0, phy_testen);;
166 rk32_dsi_set_bits(dsi, 0, phy_testen);
167 val = rk32_dsi_get_bits(dsi, phy_testdout);
168 rk32_dsi_set_bits(dsi, 1, phy_testclk);
169 rk32_dsi_set_bits(dsi, 0, phy_testclk);
174 static int rk32_dwc_phy_test_wr(struct dsi *dsi, unsigned char test_code, unsigned char *test_data, unsigned char size)
178 MIPI_DBG("test_code=0x%x,test_data=0x%x\n", test_code, test_data[0]);
179 rk32_dsi_set_bits(dsi, 0x10000 | test_code, PHY_TEST_CTRL1);
180 rk32_dsi_set_bits(dsi, 0x2, PHY_TEST_CTRL0);
181 rk32_dsi_set_bits(dsi, 0x0, PHY_TEST_CTRL0);
183 for (i = 0; i < size; i++) {
184 rk32_dsi_set_bits(dsi, test_data[i], PHY_TEST_CTRL1);
185 rk32_dsi_set_bits(dsi, 0x2, PHY_TEST_CTRL0);
186 rk32_dsi_set_bits(dsi, 0x0, PHY_TEST_CTRL0);
187 MIPI_DBG("rk32_dwc_phy_test_wr:%08x\n", rk32_dsi_get_bits(dsi, PHY_TEST_CTRL1));
192 static int rk32_phy_power_up(struct dsi *dsi)
194 /* enable ref clock */
195 clk_prepare_enable(dsi->phy.refclk);
196 clk_prepare_enable(dsi->dsi_pclk);
197 clk_prepare_enable(dsi->dsi_pd);
200 switch (dsi->host.lane) {
202 rk32_dsi_set_bits(dsi, 3, n_lanes);
205 rk32_dsi_set_bits(dsi, 2, n_lanes);
208 rk32_dsi_set_bits(dsi, 1, n_lanes);
211 rk32_dsi_set_bits(dsi, 0, n_lanes);
216 rk32_dsi_set_bits(dsi, 1, phy_shutdownz);
217 rk32_dsi_set_bits(dsi, 1, phy_rstz);
218 rk32_dsi_set_bits(dsi, 1, phy_enableclk);
219 rk32_dsi_set_bits(dsi, 1, phy_forcepll);
224 static int rk312x_mipi_dsi_phy_set_gotp(struct dsi *dsi, u32 offset, int n)
226 u32 val = 0, temp = 0, Tlpx = 0;
227 u32 ddr_clk = dsi->phy.ddr_clk;
228 u32 Ttxbyte_clk = dsi->phy.Ttxbyte_clk;
229 u32 Tsys_clk = dsi->phy.Tsys_clk;
230 u32 Ttxclkesc = dsi->phy.Ttxclkesc;
231 printk("%s : ddr_clk %d\n", __func__, ddr_clk);
233 case DPHY_CLOCK_OFFSET:
234 MIPI_DBG("******set DPHY_CLOCK_OFFSET gotp******\n");
236 case DPHY_LANE0_OFFSET:
237 MIPI_DBG("******set DPHY_LANE0_OFFSET gotp******\n");
239 case DPHY_LANE1_OFFSET:
240 MIPI_DBG("******set DPHY_LANE1_OFFSET gotp******\n");
242 case DPHY_LANE2_OFFSET:
243 MIPI_DBG("******set DPHY_LANE2_OFFSET gotp******\n");
245 case DPHY_LANE3_OFFSET:
246 MIPI_DBG("******set DPHY_LANE3_OFFSET gotp******\n");
252 if (ddr_clk < 110 * MHz)
254 else if (ddr_clk < 150 * MHz)
256 else if (ddr_clk < 200 * MHz)
258 else if (ddr_clk < 250 * MHz)
260 else if (ddr_clk < 300 * MHz)
262 else if (ddr_clk < 400 * MHz)
264 else if (ddr_clk < 500 * MHz)
266 else if (ddr_clk < 600 * MHz)
268 else if (ddr_clk < 700 * MHz)
270 else if (ddr_clk < 800 * MHz)
272 else if (ddr_clk <= 1000 * MHz)
274 printk("%s reg_ths_settle = 0x%x\n", __func__, val);
275 rk32_dsi_set_bits(dsi, val, reg_ths_settle + offset);
277 if (ddr_clk < 110 * MHz)
279 else if (ddr_clk < 150 * MHz)
281 else if (ddr_clk < 200 * MHz)
283 else if (ddr_clk < 250 * MHz)
285 else if (ddr_clk < 300 * MHz)
287 else if (ddr_clk < 400 * MHz)
289 else if (ddr_clk < 500 * MHz)
291 else if (ddr_clk < 600 * MHz)
293 else if (ddr_clk < 700 * MHz)
295 else if (ddr_clk < 800 * MHz)
297 else if (ddr_clk <= 1000 * MHz)
299 printk("%s reg_hs_ths_prepare = 0x%x\n", __func__, val);
300 rk32_dsi_set_bits(dsi, val, reg_hs_ths_prepare + offset);
302 if (offset != DPHY_CLOCK_OFFSET) {
303 if (ddr_clk < 110 * MHz)
305 else if (ddr_clk < 150 * MHz)
307 else if (ddr_clk < 200 * MHz)
309 else if (ddr_clk < 250 * MHz)
311 else if (ddr_clk < 300 * MHz)
313 else if (ddr_clk < 400 * MHz)
315 else if (ddr_clk < 500 * MHz)
317 else if (ddr_clk < 600 * MHz)
319 else if (ddr_clk < 700 * MHz)
321 else if (ddr_clk < 800 * MHz)
323 else if (ddr_clk <= 1000 * MHz)
326 if (ddr_clk < 110 * MHz)
328 else if (ddr_clk < 150 * MHz)
330 else if (ddr_clk < 200 * MHz)
332 else if (ddr_clk < 250 * MHz)
334 else if (ddr_clk < 300 * MHz)
336 else if (ddr_clk < 400 * MHz)
338 else if (ddr_clk < 500 * MHz)
340 else if (ddr_clk < 600 * MHz)
342 else if (ddr_clk < 700 * MHz)
344 else if (ddr_clk < 800 * MHz)
346 else if (ddr_clk <= 1000 * MHz)
349 printk("%s reg_hs_the_zero = 0x%x\n", __func__, val);
350 rk32_dsi_set_bits(dsi, val, reg_hs_the_zero + offset);
352 if (ddr_clk < 110 * MHz)
354 else if (ddr_clk < 150 * MHz)
356 else if (ddr_clk < 200 * MHz)
358 else if (ddr_clk < 250 * MHz)
360 else if (ddr_clk < 300 * MHz)
362 else if (ddr_clk < 400 * MHz)
364 else if (ddr_clk < 500 * MHz)
366 else if (ddr_clk < 600 * MHz)
368 else if (ddr_clk < 700 * MHz)
370 else if (ddr_clk < 800 * MHz)
372 else if (ddr_clk <= 1000 * MHz)
373 val = 0x21; /* 0x27 */
375 printk("%s reg_hs_ths_trail = 0x%x\n", __func__, val);
377 rk32_dsi_set_bits(dsi, val, reg_hs_ths_trail + offset);
378 val = 120000 / Ttxbyte_clk + 1;
379 MIPI_DBG("reg_hs_ths_exit: %d, %d\n", val, val*Ttxbyte_clk/1000);
380 rk32_dsi_set_bits(dsi, val, reg_hs_ths_exit + offset);
382 if (offset == DPHY_CLOCK_OFFSET) {
383 val = (60000 + 52*dsi->phy.UI) / Ttxbyte_clk + 1;
384 MIPI_DBG("reg_hs_tclk_post: %d, %d\n", val, val*Ttxbyte_clk/1000);
385 rk32_dsi_set_bits(dsi, val, reg_hs_tclk_post + offset);
386 val = 10*dsi->phy.UI / Ttxbyte_clk + 1;
387 MIPI_DBG("reg_hs_tclk_pre: %d, %d\n", val, val*Ttxbyte_clk/1000);
388 rk32_dsi_set_bits(dsi, val, reg_hs_tclk_pre + offset);
391 val = 1010000000 / Tsys_clk + 1;
392 MIPI_DBG("reg_hs_twakup: %d, %d\n", val, val*Tsys_clk/1000);
395 MIPI_DBG("val is too large, 0x3ff is the largest\n");
397 temp = (val >> 8) & 0x03;
399 rk32_dsi_set_bits(dsi, temp, reg_hs_twakup_h + offset);
400 rk32_dsi_set_bits(dsi, val, reg_hs_twakup_l + offset);
402 if (Ttxclkesc > 50000) {
404 MIPI_DBG("Ttxclkesc:%d\n", Ttxclkesc);
406 val = val / Ttxbyte_clk;
407 Tlpx = val*Ttxbyte_clk;
408 MIPI_DBG("reg_hs_tlpx: %d, %d\n", val, Tlpx);
410 rk32_dsi_set_bits(dsi, val, reg_hs_tlpx + offset);
413 val = 4*Tlpx / Ttxclkesc;
414 MIPI_DBG("reg_hs_tta_go: %d, %d\n", val, val*Ttxclkesc);
415 rk32_dsi_set_bits(dsi, val, reg_hs_tta_go + offset);
416 val = 3 * Tlpx / 2 / Ttxclkesc;
417 MIPI_DBG("reg_hs_tta_sure: %d, %d\n", val, val*Ttxclkesc);
418 rk32_dsi_set_bits(dsi, val, reg_hs_tta_sure + offset);
419 val = 5 * Tlpx / Ttxclkesc;
420 MIPI_DBG("reg_hs_tta_wait: %d, %d\n", val, val*Ttxclkesc);
421 rk32_dsi_set_bits(dsi, val, reg_hs_tta_wait + offset);
425 static void rk312x_mipi_dsi_set_hs_clk(struct dsi *dsi)
427 rk32_dsi_set_bits(dsi, dsi->phy.prediv, reg_prediv);
428 rk32_dsi_set_bits(dsi, dsi->phy.fbdiv & 0xff, reg_fbdiv);
429 rk32_dsi_set_bits(dsi, (dsi->phy.fbdiv >> 8) & 0x01, reg_fbdiv_8);
432 static int rk312x_phy_power_up(struct dsi *dsi)
434 /* enable ref clock */
435 rk312x_mipi_dsi_set_hs_clk(dsi);
436 clk_prepare_enable(dsi->phy.refclk);
437 clk_prepare_enable(dsi->dsi_pclk);
438 clk_prepare_enable(dsi->dsi_host_pclk);
439 clk_prepare_enable(dsi->h2p_hclk);
440 clk_prepare_enable(dsi->dsi_pd);
443 rk32_dsi_set_bits(dsi, 0xe4, DPHY_REGISTER1);
444 switch (dsi->host.lane) {
446 rk32_dsi_set_bits(dsi, 1, lane_en_3);
448 rk32_dsi_set_bits(dsi, 1, lane_en_2);
450 rk32_dsi_set_bits(dsi, 1, lane_en_1);
452 rk32_dsi_set_bits(dsi, 1, lane_en_0);
453 rk32_dsi_set_bits(dsi, 1, lane_en_ck);
459 rk32_dsi_set_bits(dsi, 0xe0, DPHY_REGISTER1);
462 rk32_dsi_set_bits(dsi, 0x1e, DPHY_REGISTER20);
463 rk32_dsi_set_bits(dsi, 0x1f, DPHY_REGISTER20);
465 rk32_dsi_set_bits(dsi, 1, phy_enableclk);
470 static int rk_phy_power_up(struct dsi *dsi)
472 if (dsi->ops.id == DWC_DSI_VERSION)
473 rk32_phy_power_up(dsi);
474 else if (dsi->ops.id == DWC_DSI_VERSION_RK312x)
475 rk312x_phy_power_up(dsi);
479 static int rk32_phy_power_down(struct dsi *dsi)
481 rk32_dsi_set_bits(dsi, 0, phy_shutdownz);
482 clk_disable_unprepare(dsi->phy.refclk);
483 clk_disable_unprepare(dsi->dsi_pclk);
484 clk_disable_unprepare(dsi->dsi_pd);
488 static int rk312x_phy_power_down(struct dsi *dsi)
490 rk32_dsi_set_bits(dsi, 0x01, DPHY_REGISTER0);
491 rk32_dsi_set_bits(dsi, 0xe3, DPHY_REGISTER1);
493 clk_disable_unprepare(dsi->phy.refclk);
494 clk_disable_unprepare(dsi->dsi_pclk);
495 clk_disable_unprepare(dsi->dsi_host_pclk);
496 clk_disable_unprepare(dsi->h2p_hclk);
497 clk_disable_unprepare(dsi->dsi_pd);
501 static int rk_phy_power_down(struct dsi *dsi)
503 if (dsi->ops.id == DWC_DSI_VERSION)
504 rk32_phy_power_down(dsi);
505 else if (dsi->ops.id == DWC_DSI_VERSION_RK312x)
506 rk312x_phy_power_down(dsi);
510 static int rk32_phy_init(struct dsi *dsi)
512 u32 val = 0 , ddr_clk = 0, fbdiv = 0, prediv = 0;
513 unsigned char test_data[2] = {0};
515 ddr_clk = dsi->phy.ddr_clk;
516 prediv = dsi->phy.prediv;
517 fbdiv = dsi->phy.fbdiv;
519 if (ddr_clk < 200 * MHz)
521 else if (ddr_clk < 300 * MHz)
523 else if (ddr_clk < 500 * MHz)
525 else if (ddr_clk < 700 * MHz)
527 else if (ddr_clk < 900 * MHz)
529 else if (ddr_clk < 1100 * MHz)
531 else if (ddr_clk < 1300 * MHz)
533 else if (ddr_clk <= 1500 * MHz)
536 test_data[0] = 0x80 | val << 3 | 0x3;
537 rk32_dwc_phy_test_wr(dsi, 0x10, test_data, 1);
540 rk32_dwc_phy_test_wr(dsi, 0x11, test_data, 1);
542 test_data[0] = 0x80 | 0x40;
543 rk32_dwc_phy_test_wr(dsi, 0x12, test_data, 1);
545 if (ddr_clk < 90 * MHz)
547 else if (ddr_clk < 100 * MHz)
549 else if (ddr_clk < 110 * MHz)
551 else if (ddr_clk < 130 * MHz)
553 else if (ddr_clk < 140 * MHz)
555 else if (ddr_clk < 150 * MHz)
557 else if (ddr_clk < 170 * MHz)
559 else if (ddr_clk < 180 * MHz)
561 else if (ddr_clk < 200 * MHz)
563 else if (ddr_clk < 220 * MHz)
565 else if (ddr_clk < 240 * MHz)
567 else if (ddr_clk < 250 * MHz)
569 else if (ddr_clk < 270 * MHz)
571 else if (ddr_clk < 300 * MHz)
573 else if (ddr_clk < 330 * MHz)
575 else if (ddr_clk < 360 * MHz)
577 else if (ddr_clk < 400 * MHz)
579 else if (ddr_clk < 450 * MHz)
581 else if (ddr_clk < 500 * MHz)
583 else if (ddr_clk < 550 * MHz)
585 else if (ddr_clk < 600 * MHz)
587 else if (ddr_clk < 650 * MHz)
589 else if (ddr_clk < 700 * MHz)
591 else if (ddr_clk < 750 * MHz)
593 else if (ddr_clk < 800 * MHz)
595 else if (ddr_clk < 850 * MHz)
597 else if (ddr_clk < 900 * MHz)
599 else if (ddr_clk < 950 * MHz)
601 else if (ddr_clk < 1000 * MHz)
603 else if (ddr_clk < 1050 * MHz)
605 else if (ddr_clk < 1100 * MHz)
607 else if (ddr_clk < 1150 * MHz)
609 else if (ddr_clk < 1200 * MHz)
611 else if (ddr_clk < 1250 * MHz)
613 else if (ddr_clk < 1300 * MHz)
615 else if (ddr_clk < 1350 * MHz)
617 else if (ddr_clk < 1400 * MHz)
619 else if (ddr_clk < 1450 * MHz)
621 else if (ddr_clk <= 1500 * MHz)
624 test_data[0] = val << 1;
625 rk32_dwc_phy_test_wr(dsi, code_hs_rx_lane0, test_data, 1);
627 test_data[0] = prediv - 1;
628 rk32_dwc_phy_test_wr(dsi, code_pll_input_div_rat, test_data, 1);
630 test_data[0] = (fbdiv - 1) & 0x1f;
631 rk32_dwc_phy_test_wr(dsi, code_pll_loop_div_rat, test_data, 1);
633 test_data[0] = (fbdiv - 1) >> 5 | 0x80;
634 rk32_dwc_phy_test_wr(dsi, code_pll_loop_div_rat, test_data, 1);
637 rk32_dwc_phy_test_wr(dsi, code_pll_input_loop_div_rat, test_data, 1);
641 rk32_dwc_phy_test_wr(dsi, 0x20, test_data, 1);
644 rk32_dwc_phy_test_wr(dsi, 0x21, test_data, 1);
647 rk32_dwc_phy_test_wr(dsi, 0x21, test_data, 1);
650 rk32_dwc_phy_test_wr(dsi, 0x22, test_data, 1);
652 test_data[0] = 0x80 | 0x7;
653 rk32_dwc_phy_test_wr(dsi, 0x22, test_data, 1);
655 test_data[0] = 0x80 | 15;
656 rk32_dwc_phy_test_wr(dsi, code_hstxdatalanerequsetstatetime, test_data, 1);
658 test_data[0] = 0x80 | 85;
659 rk32_dwc_phy_test_wr(dsi, code_hstxdatalanepreparestatetime, test_data, 1);
661 test_data[0] = 0x40 | 10;
662 rk32_dwc_phy_test_wr(dsi, code_hstxdatalanehszerostatetime, test_data, 1);
667 static int rk312x_phy_init(struct dsi *dsi, int n)
670 rk32_dsi_set_bits(dsi, 0x11, DSI_DPHY_BITS(0x06<<2, 32, 0));
671 rk32_dsi_set_bits(dsi, 0x11, DSI_DPHY_BITS(0x07<<2, 32, 0));
672 rk32_dsi_set_bits(dsi, 0xcc, DSI_DPHY_BITS(0x09<<2, 32, 0));
674 dsi_set_bits(0x4e, DSI_DPHY_BITS(0x08<<2, 32, 0));
675 dsi_set_bits(0x84, DSI_DPHY_BITS(0x0a<<2, 32, 0));
678 /*reg1[4] 0: enable a function of "pll phase for serial data being captured
681 we disable it here because reg5[6:4] is not compatible with the HS speed.
684 if (dsi->phy.ddr_clk >= 800*MHz) {
685 rk32_dsi_set_bits(dsi, 0x30, DSI_DPHY_BITS(0x05<<2, 32, 0));
687 rk32_dsi_set_bits(dsi, 1, reg_da_ppfc);
690 switch (dsi->host.lane) {
692 rk312x_mipi_dsi_phy_set_gotp(dsi, DPHY_LANE3_OFFSET, n);
694 rk312x_mipi_dsi_phy_set_gotp(dsi, DPHY_LANE2_OFFSET, n);
696 rk312x_mipi_dsi_phy_set_gotp(dsi, DPHY_LANE1_OFFSET, n);
698 rk312x_mipi_dsi_phy_set_gotp(dsi, DPHY_LANE0_OFFSET, n);
699 rk312x_mipi_dsi_phy_set_gotp(dsi, DPHY_CLOCK_OFFSET, n);
705 rk32_dsi_set_bits(dsi, 0x00e4, reg1_phy);
706 rk32_dsi_set_bits(dsi, 0x007d, reg0_phy);
708 rk32_dsi_set_bits(dsi, 0x00e0, reg1_phy);
709 rk32_dsi_set_bits(dsi, 0x001e, reg20_phy);
711 rk32_dsi_set_bits(dsi, 0x001f, reg20_phy);
713 rk32_dsi_set_bits(dsi, 0x0063, reg10_phy);
716 rk32_dsi_set_bits(dsi, 0x06, reg5_phy);
717 rk32_dsi_set_bits(dsi, 0x6, reg10_4_6_phy);
718 rk32_dsi_set_bits(dsi, 0x9, regb_phy);
723 static int rk_phy_init(struct dsi *dsi)
725 if (dsi->ops.id == DWC_DSI_VERSION)
727 else if (dsi->ops.id == DWC_DSI_VERSION_RK312x)
728 rk312x_phy_init(dsi, 4);
732 static int rk32_mipi_dsi_host_power_up(struct dsi *dsi)
737 /* disable all interrupt */
738 rk32_dsi_set_bits(dsi, 0x1fffff, INT_MKS0);
739 rk32_dsi_set_bits(dsi, 0x3ffff, INT_MKS1);
741 rk32_mipi_dsi_is_enable(dsi, 1);
744 while (!rk32_dsi_get_bits(dsi, phylock) && val--) {
750 MIPI_TRACE("%s:phylock fail.\n", __func__);
754 while (!rk32_dsi_get_bits(dsi, phystopstateclklane) && val--) {
761 static int rk32_mipi_dsi_host_power_down(struct dsi *dsi)
763 rk32_mipi_dsi_enable_video_mode(dsi, 0);
764 rk32_mipi_dsi_enable_hs_clk(dsi, 0);
765 rk32_mipi_dsi_is_enable(dsi, 0);
769 static int rk32_mipi_dsi_host_init(struct dsi *dsi)
771 u32 val = 0, bytes_px = 0;
772 struct mipi_dsi_screen *screen = &dsi->screen;
773 u32 decimals = dsi->phy.Ttxbyte_clk, temp = 0, i = 0;
774 u32 m = 1, lane = dsi->host.lane, Tpclk = dsi->phy.Tpclk,
775 Ttxbyte_clk = dsi->phy.Ttxbyte_clk;
777 rk32_dsi_set_bits(dsi, dsi->host.lane - 1, n_lanes);
778 rk32_dsi_set_bits(dsi, dsi->vid, dpi_vcid);
780 switch (screen->face) {
782 rk32_dsi_set_bits(dsi, 5, dpi_color_coding);
787 rk32_dsi_set_bits(dsi, 3, dpi_color_coding);
788 rk32_dsi_set_bits(dsi, 1, en18_loosely);
792 rk32_dsi_set_bits(dsi, 0, dpi_color_coding);
797 if (dsi->ops.id == DWC_DSI_VERSION) {
798 rk32_dsi_set_bits(dsi, 1, hsync_active_low);
799 rk32_dsi_set_bits(dsi, 1, vsync_active_low);
801 rk32_dsi_set_bits(dsi, 0, dataen_active_low);
802 rk32_dsi_set_bits(dsi, 0, colorm_active_low);
803 rk32_dsi_set_bits(dsi, 0, shutd_active_low);
804 } else if (dsi->ops.id == DWC_DSI_VERSION_RK312x) {
805 rk32_dsi_set_bits(dsi, !screen->pin_hsync, hsync_active_low);
806 rk32_dsi_set_bits(dsi, !screen->pin_vsync, vsync_active_low);
808 rk32_dsi_set_bits(dsi, screen->pin_den, dataen_active_low);
809 rk32_dsi_set_bits(dsi, 1, colorm_active_low);
810 rk32_dsi_set_bits(dsi, 1, shutd_active_low);
813 rk32_dsi_set_bits(dsi, dsi->host.video_mode, vid_mode_type); /* burst mode */
815 switch (dsi->host.video_mode) {
817 if (screen->type == SCREEN_DUAL_MIPI)
818 rk32_dsi_set_bits(dsi, screen->x_res / 2 + 4, vid_pkt_size);
820 rk32_dsi_set_bits(dsi, screen->x_res, vid_pkt_size);
824 for (i = 8; i < 32; i++) {
825 temp = i * lane * Tpclk % Ttxbyte_clk;
826 if (decimals > temp) {
834 rk32_dsi_set_bits(dsi, screen->x_res / m + 1, num_chunks);
835 rk32_dsi_set_bits(dsi, m, vid_pkt_size);
836 temp = m * lane * Tpclk / Ttxbyte_clk - m * bytes_px;
837 MIPI_DBG("%s:%d, %d\n", __func__, m, temp);
840 rk32_dsi_set_bits(dsi, temp - 12, null_pkt_size);
846 /* rk32_dsi_set_bits(dsi, 0, CMD_MODE_CFG << 16); */
847 if (screen->type == SCREEN_MIPI) {
848 rk32_dsi_set_bits(dsi, dsi->phy.Tpclk * (screen->x_res + screen->left_margin +
849 screen->hsync_len + screen->right_margin) \
850 / dsi->phy.Ttxbyte_clk, vid_hline_time);
852 rk32_dsi_set_bits(dsi, dsi->phy.Tpclk * (screen->x_res + 8 + screen->left_margin +
853 screen->hsync_len + screen->right_margin) \
854 / dsi->phy.Ttxbyte_clk, vid_hline_time);
856 MIPI_DBG("dsi->phy.Tpclk = %d\n", dsi->phy.Tpclk);
857 MIPI_DBG("screen->left_margin = %d\n", screen->left_margin);
858 MIPI_DBG("dsi->phy.Ttxbyte_clk = %d\n", dsi->phy.Ttxbyte_clk);
859 MIPI_DBG("screen->hsync_len = %d\n", screen->hsync_len);
860 rk32_dsi_set_bits(dsi, dsi->phy.Tpclk * (screen->left_margin) / dsi->phy.Ttxbyte_clk,
862 rk32_dsi_set_bits(dsi, dsi->phy.Tpclk * (screen->hsync_len) / dsi->phy.Ttxbyte_clk,
865 rk32_dsi_set_bits(dsi, screen->y_res , vid_active_lines);
866 rk32_dsi_set_bits(dsi, screen->lower_margin, vid_vfp_lines);
867 rk32_dsi_set_bits(dsi, screen->upper_margin, vid_vbp_lines);
868 rk32_dsi_set_bits(dsi, screen->vsync_len, vid_vsa_lines);
870 dsi->phy.txclkesc = 20 * MHz;
871 val = dsi->phy.txbyte_clk / dsi->phy.txclkesc + 1;
872 dsi->phy.txclkesc = dsi->phy.txbyte_clk / val;
873 rk32_dsi_set_bits(dsi, val, TX_ESC_CLK_DIVISION);
875 rk32_dsi_set_bits(dsi, 10, TO_CLK_DIVISION);
876 rk32_dsi_set_bits(dsi, 1000, hstx_to_cnt); /* no sure */
877 rk32_dsi_set_bits(dsi, 1000, lprx_to_cnt);
878 rk32_dsi_set_bits(dsi, 100, phy_stop_wait_time);
880 /* enable send command in low power mode */
881 rk32_dsi_set_bits(dsi, 4, outvact_lpcmd_time);
882 rk32_dsi_set_bits(dsi, 4, invact_lpcmd_time);
883 rk32_dsi_set_bits(dsi, 1, lp_cmd_en);
885 rk32_dsi_set_bits(dsi, 20, phy_hs2lp_time);
886 rk32_dsi_set_bits(dsi, 16, phy_lp2hs_time);
888 rk32_dsi_set_bits(dsi, 87, phy_hs2lp_time_clk_lane);
889 rk32_dsi_set_bits(dsi, 25, phy_hs2hs_time_clk_lane);
891 rk32_dsi_set_bits(dsi, 10000, max_rd_time);
893 rk32_dsi_set_bits(dsi, 1, lp_hfp_en);
894 /* rk32_dsi_set_bits(dsi, 1, lp_hbp_en); */
895 rk32_dsi_set_bits(dsi, 1, lp_vact_en);
896 rk32_dsi_set_bits(dsi, 1, lp_vfp_en);
897 rk32_dsi_set_bits(dsi, 1, lp_vbp_en);
898 rk32_dsi_set_bits(dsi, 1, lp_vsa_en);
900 /* rk32_dsi_set_bits(dsi, 1, frame_bta_ack_en); */
901 rk32_dsi_set_bits(dsi, 1, phy_enableclk);
902 rk32_dsi_set_bits(dsi, 0, phy_tx_triggers);
904 /* enable non-continued function */
905 rk32_dsi_set_bits(dsi, 1, auto_clklane_ctrl);
907 rk32_dsi_set_bits(dsi, 1, phy_txexitulpslan);
908 rk32_dsi_set_bits(dsi, 1, phy_txexitulpsclk);
914 * mipi protocol layer definition
916 static int rk_mipi_dsi_init(void *arg, u32 n)
918 u32 decimals = 1000, i = 0, pre = 0;
919 struct dsi *dsi = arg;
920 struct mipi_dsi_screen *screen = &dsi->screen;
925 if ((screen->type != SCREEN_MIPI) && (screen->type != SCREEN_DUAL_MIPI)) {
926 MIPI_TRACE("only mipi dsi lcd is supported!\n");
930 if (((screen->type == SCREEN_DUAL_MIPI) && (rk_mipi_get_dsi_num() == 1)) || ((screen->type == SCREEN_MIPI) && (rk_mipi_get_dsi_num() == 2))) {
931 MIPI_TRACE("dsi number and mipi type not match!\n");
935 dsi->phy.Tpclk = rk_fb_get_prmry_screen_pixclock();
938 dsi->phy.ref_clk = clk_get_rate(dsi->phy.refclk) ;
939 if (dsi->ops.id == DWC_DSI_VERSION_RK312x)
940 dsi->phy.ref_clk = dsi->phy.ref_clk / 2; /* 1/2 of input refclk */
942 dsi->phy.sys_clk = dsi->phy.ref_clk;
944 printk("dsi->phy.sys_clk =%d\n", dsi->phy.sys_clk);
945 if (dsi->ops.id == DWC_DSI_VERSION) {
946 if ((screen->hs_tx_clk <= 90 * MHz) || (screen->hs_tx_clk >= 1500 * MHz))
947 dsi->phy.ddr_clk = 1500 * MHz; /* default is 1.5HGz */
949 dsi->phy.ddr_clk = screen->hs_tx_clk;
950 } else if (dsi->ops.id == DWC_DSI_VERSION_RK312x) {
951 if ((screen->hs_tx_clk <= 80 * MHz) || (screen->hs_tx_clk >= 1000 * MHz))
952 dsi->phy.ddr_clk = 1000 * MHz; /* default is 1GHz */
954 dsi->phy.ddr_clk = screen->hs_tx_clk;
958 dsi->phy.ddr_clk = n;
960 decimals = dsi->phy.ref_clk;
961 for (i = 1; i < 6; i++) {
962 pre = dsi->phy.ref_clk / i;
963 if ((decimals > (dsi->phy.ddr_clk % pre)) && (dsi->phy.ddr_clk / pre < 512)) {
964 decimals = dsi->phy.ddr_clk % pre;
966 dsi->phy.fbdiv = dsi->phy.ddr_clk / pre;
972 MIPI_DBG("prediv:%d, fbdiv:%d,dsi->phy.ddr_clk:%d\n", dsi->phy.prediv, dsi->phy.fbdiv, dsi->phy.ref_clk / dsi->phy.prediv * dsi->phy.fbdiv);
974 dsi->phy.ddr_clk = dsi->phy.ref_clk / dsi->phy.prediv * dsi->phy.fbdiv;
976 MIPI_DBG("dsi->phy.ddr_clk =%d\n", dsi->phy.ddr_clk);
977 dsi->phy.txbyte_clk = dsi->phy.ddr_clk / 8;
979 dsi->phy.txclkesc = 20 * MHz; /* < 20MHz */
980 dsi->phy.txclkesc = dsi->phy.txbyte_clk / (dsi->phy.txbyte_clk / dsi->phy.txclkesc + 1);
982 dsi->phy.pclk = div_u64(1000000000000llu, dsi->phy.Tpclk);
983 dsi->phy.Ttxclkesc = div_u64(1000000000000llu, dsi->phy.txclkesc);
984 dsi->phy.Tsys_clk = div_u64(1000000000000llu, dsi->phy.sys_clk);
985 dsi->phy.Tddr_clk = div_u64(1000000000000llu, dsi->phy.ddr_clk);
986 dsi->phy.Ttxbyte_clk = div_u64(1000000000000llu, dsi->phy.txbyte_clk);
988 dsi->phy.UI = dsi->phy.Tddr_clk;
991 if (screen->dsi_lane > 0 && screen->dsi_lane <= 4)
992 dsi->host.lane = screen->dsi_lane;
996 dsi->host.video_mode = VM_BM;
998 MIPI_DBG("UI:%d\n", dsi->phy.UI);
999 MIPI_DBG("ref_clk:%d\n", dsi->phy.ref_clk);
1000 MIPI_DBG("pclk:%d, Tpclk:%d\n", dsi->phy.pclk, dsi->phy.Tpclk);
1001 MIPI_DBG("sys_clk:%d, Tsys_clk:%d\n", dsi->phy.sys_clk, dsi->phy.Tsys_clk);
1002 MIPI_DBG("ddr_clk:%d, Tddr_clk:%d\n", dsi->phy.ddr_clk, dsi->phy.Tddr_clk);
1003 MIPI_DBG("txbyte_clk:%d, Ttxbyte_clk:%d\n", dsi->phy.txbyte_clk,
1004 dsi->phy.Ttxbyte_clk);
1005 MIPI_DBG("txclkesc:%d, Ttxclkesc:%d\n", dsi->phy.txclkesc, dsi->phy.Ttxclkesc);
1008 rk_phy_power_up(dsi);
1009 rk32_mipi_dsi_host_power_up(dsi);
1011 rk32_mipi_dsi_host_init(dsi);
1016 static int rk32_mipi_dsi_is_enable(void *arg, u32 enable)
1018 struct dsi *dsi = arg;
1020 rk32_dsi_set_bits(dsi, enable, shutdownz);
1024 static int rk32_mipi_dsi_enable_video_mode(void *arg, u32 enable)
1026 struct dsi *dsi = arg;
1028 rk32_dsi_set_bits(dsi, !enable, cmd_video_mode);
1032 static int rk32_mipi_dsi_enable_command_mode(void *arg, u32 enable)
1034 struct dsi *dsi = arg;
1036 rk32_dsi_set_bits(dsi, enable, cmd_video_mode);
1040 static int rk32_mipi_dsi_enable_hs_clk(void *arg, u32 enable)
1042 struct dsi *dsi = arg;
1044 rk32_dsi_set_bits(dsi, enable, phy_txrequestclkhs);
1048 static int rk32_mipi_dsi_is_active(void *arg)
1050 struct dsi *dsi = arg;
1052 return rk32_dsi_get_bits(dsi, shutdownz);
1055 static int rk32_mipi_dsi_send_packet(void *arg, unsigned char cmds[], u32 length)
1057 struct dsi *dsi = arg;
1058 unsigned char *regs;
1059 u32 type, liTmp = 0, i = 0, j = 0, data = 0;
1061 if (rk32_dsi_get_bits(dsi, gen_cmd_full) == 1) {
1062 MIPI_TRACE("gen_cmd_full\n");
1065 regs = kmalloc(0x400, GFP_KERNEL);
1067 printk("request regs fail!\n");
1070 memcpy(regs, cmds, length);
1076 case DTYPE_DCS_SWRITE_0P:
1077 rk32_dsi_set_bits(dsi, regs[0], dcs_sw_0p_tx);
1078 data = regs[2] << 8 | type;
1080 case DTYPE_DCS_SWRITE_1P:
1081 rk32_dsi_set_bits(dsi, regs[0], dcs_sw_1p_tx);
1082 data = regs[2] << 8 | type;
1083 data |= regs[3] << 16;
1085 case DTYPE_DCS_LWRITE:
1086 rk32_dsi_set_bits(dsi, regs[0], dcs_lw_tx);
1087 for (i = 0; i < liTmp; i++) {
1088 regs[i] = regs[i+2];
1090 for (i = 0; i < liTmp; i++) {
1092 data |= regs[i] << (j * 8);
1093 if (j == 3 || ((i + 1) == liTmp)) {
1094 if (rk32_dsi_get_bits(dsi, gen_pld_w_full) == 1) {
1095 MIPI_TRACE("gen_pld_w_full :%d\n", i);
1098 rk32_dsi_set_bits(dsi, data, GEN_PLD_DATA);
1099 MIPI_DBG("write GEN_PLD_DATA:%d, %08x\n", i, data);
1104 data |= (liTmp & 0xffff) << 8;
1106 case DTYPE_GEN_LWRITE:
1107 rk32_dsi_set_bits(dsi, regs[0], gen_lw_tx);
1108 for (i = 0; i < liTmp; i++) {
1109 regs[i] = regs[i+2];
1111 for (i = 0; i < liTmp; i++) {
1113 data |= regs[i] << (j * 8);
1114 if (j == 3 || ((i + 1) == liTmp)) {
1115 if (rk32_dsi_get_bits(dsi, gen_pld_w_full) == 1) {
1116 MIPI_TRACE("gen_pld_w_full :%d\n", i);
1119 rk32_dsi_set_bits(dsi, data, GEN_PLD_DATA);
1120 MIPI_DBG("write GEN_PLD_DATA:%d, %08x\n", i, data);
1124 data = (dsi->vid << 6) | type;
1125 data |= (liTmp & 0xffff) << 8;
1127 case DTYPE_GEN_SWRITE_2P:
1128 rk32_dsi_set_bits(dsi, regs[0], gen_sw_2p_tx);
1129 for (i = 0; i < liTmp; i++) {
1130 regs[i] = regs[i+2];
1132 for (i = 0; i < liTmp; i++) {
1134 data |= regs[i] << (j * 8);
1135 if (j == 3 || ((i + 1) == liTmp)) {
1136 if (rk32_dsi_get_bits(dsi, gen_pld_w_full) == 1) {
1137 MIPI_TRACE("gen_pld_w_full :%d\n", i);
1140 rk32_dsi_set_bits(dsi, data, GEN_PLD_DATA);
1141 MIPI_DBG("write GEN_PLD_DATA:%d, %08x\n", i, data);
1146 data |= (liTmp & 0xffff) << 8;
1148 case DTYPE_GEN_SWRITE_1P:
1149 rk32_dsi_set_bits(dsi, regs[0], gen_sw_1p_tx);
1151 data |= regs[2] << 8;
1152 data |= regs[3] << 16;
1154 case DTYPE_GEN_SWRITE_0P:
1155 rk32_dsi_set_bits(dsi, regs[0], gen_sw_0p_tx);
1157 data |= regs[2] << 8;
1160 printk("0x%x:this type not suppport!\n", type);
1163 MIPI_DBG("%d command sent in %s size:%d\n", __LINE__, regs[0] ? "LP mode" : "HS mode", liTmp);
1165 MIPI_DBG("write GEN_HDR:%08x\n", data);
1166 rk32_dsi_set_bits(dsi, data, GEN_HDR);
1169 while (!rk32_dsi_get_bits(dsi, gen_cmd_empty) && i--) {
1178 static int rk32_mipi_dsi_read_dcs_packet(void *arg, unsigned char *data1, u32 n)
1180 struct dsi *dsi = arg;
1181 unsigned char regs[2];
1188 rk32_dsi_set_bits(dsi, regs[0], dcs_sr_0p_tx);
1190 if(type == DTYPE_GEN_SWRITE_0P)
1191 data = (dsi->vid << 6) | (n << 4) | type;
1193 data = (dsi->vid << 6) | ((n-1) << 4) | type;
1196 data |= regs[1] << 8 | type;
1198 printk("write GEN_HDR:%08x\n", data);
1200 rk32_dsi_set_bits(dsi, 0xFFFF, bta_to_cnt);
1201 rk32_dsi_set_bits(dsi, 1, bta_en);
1202 rk32_dsi_set_bits(dsi, data, GEN_HDR);
1205 printk("rk32_mipi_dsi_read_dcs_packet==0x%x\n", rk32_dsi_get_bits(dsi, GEN_PLD_DATA));
1206 rk32_dsi_set_bits(dsi, 0, bta_en);
1211 static int rk32_mipi_dsi_power_up(void *arg)
1213 struct dsi *dsi = arg;
1215 rk32_phy_power_up(dsi);
1216 rk32_mipi_dsi_host_power_up(dsi);
1220 static int rk32_mipi_dsi_power_down(void *arg)
1222 struct dsi *dsi = arg;
1223 struct mipi_dsi_screen *screen = &dsi->screen;
1228 rk32_mipi_dsi_host_power_down(dsi);
1229 rk_phy_power_down(dsi);
1231 MIPI_TRACE("%s:%d\n", __func__, __LINE__);
1235 static int rk32_mipi_dsi_get_id(void *arg)
1238 struct dsi *dsi = arg;
1240 id = rk32_dsi_get_bits(dsi, VERSION);
1244 /* the most top level of mipi dsi init */
1245 static int rk_mipi_dsi_probe(struct dsi *dsi)
1249 register_dsi_ops(dsi->dsi_id, &dsi->ops);
1250 ret = dsi_probe_current_chip(dsi->dsi_id);
1252 MIPI_TRACE("mipi dsi probe fail\n");
1258 #ifdef MIPI_DSI_REGISTER_IO
1259 #include <linux/proc_fs.h>
1260 #include <asm/uaccess.h>
1261 #include <linux/slab.h>
1263 int reg_proc_write(struct file *file, const char __user *buff, size_t count, loff_t *offp)
1265 int ret = -1, i = 0;
1267 char *buf = kmalloc(count, GFP_KERNEL);
1272 memset(buf, 0, count);
1273 ret = copy_from_user((void *)buf, buff, count);
1274 data = strstr(data, "-");
1276 goto reg_proc_write_exit;
1277 command = *(++data);
1281 data = strstr(data, "0x");
1283 goto reg_proc_write_exit;
1284 sscanf(data, "0x%llx", ®s_val);
1285 if ((regs_val & 0xffff00000000ULL) == 0)
1286 goto reg_proc_write_exit;
1287 read_val = regs_val & 0xffffffff;
1288 printk("regs_val=0x%llx\n", regs_val);
1289 rk32_dsi_write_reg(dsi0, regs_val >> 32, &read_val);
1290 rk32_dsi_read_reg(dsi0, regs_val >> 32, &read_val);
1291 regs_val &= 0xffffffff;
1292 if (read_val != regs_val)
1293 MIPI_TRACE("%s fail:0x%08x\n", __func__, read_val);
1299 data = strstr(data, "0x");
1301 goto reg_proc_write_exit;
1303 sscanf(data, "0x%llx", ®s_val);
1304 rk32_dsi_read_reg(dsi0, (u16)regs_val, &read_val);
1305 MIPI_TRACE("*%04x : %08x\n", (u16)regs_val, read_val);
1309 while (*(++data) == ' ')
1311 sscanf(data, "%d", &read_val);
1313 read_val = 11289600;
1320 while (*(++data) == ' ')
1323 MIPI_TRACE("****%d:%d\n", data-buf, count);
1326 MIPI_TRACE("payload entry is larger than 32\n");
1329 sscanf(data, "%x,", (unsigned int *)(str + i)); /* -c 1,29,02,03,05,06,> pro */
1330 data = strstr(data, ",");
1341 rk32_mipi_dsi_send_packet(dsi0, str, read_val);
1343 rk32_mipi_dsi_send_packet(dsi0, str, read_val);
1354 reg_proc_write_exit:
1360 int reg_proc_read(struct seq_file *s, void *v)
1364 struct dsi *dsi = s->private;
1366 for (i = VERSION; i < (VERSION + (0xdc << 16)); i += 4<<16) {
1367 val = rk32_dsi_get_bits(dsi, i);
1368 seq_printf(s, "%04x: %08x\n", i>>16, val);
1372 static int reg_proc_open(struct inode *inode, struct file *file)
1374 struct dsi *dsi = inode->i_private;
1376 return single_open(file, reg_proc_read, dsi);
1379 int reg_proc_close(struct inode *inode, struct file *file)
1384 struct file_operations reg_proc_fops = {
1385 .owner = THIS_MODULE,
1386 .open = reg_proc_open,
1387 .release = reg_proc_close,
1388 .write = reg_proc_write,
1392 int reg_proc_write1(struct file *file, const char __user *buff, size_t count, loff_t *offp)
1394 int ret = -1, i = 0;
1396 char *buf = kmalloc(count, GFP_KERNEL);
1401 memset(buf, 0, count);
1402 ret = copy_from_user((void *)buf, buff, count);
1404 data = strstr(data, "-");
1406 goto reg_proc_write_exit;
1407 command = *(++data);
1412 data = strstr(data, "0x");
1414 goto reg_proc_write_exit;
1415 sscanf(data, "0x%llx", ®s_val);
1416 if ((regs_val & 0xffff00000000ULL) == 0)
1417 goto reg_proc_write_exit;
1418 read_val = regs_val & 0xffffffff;
1419 rk32_dsi_write_reg(dsi1, regs_val >> 32, &read_val);
1420 rk32_dsi_read_reg(dsi1, regs_val >> 32, &read_val);
1421 regs_val &= 0xffffffff;
1422 if (read_val != regs_val)
1423 MIPI_TRACE("%s fail:0x%08x\n", __func__, read_val);
1429 data = strstr(data, "0x");
1431 goto reg_proc_write_exit;
1432 sscanf(data, "0x%llx", ®s_val);
1433 rk32_dsi_read_reg(dsi1, (u16)regs_val, &read_val);
1434 MIPI_TRACE("*%04x : %08x\n", (u16)regs_val, read_val);
1438 while (*(++data) == ' ')
1440 sscanf(data, "%d", &read_val);
1442 read_val = 11289600;
1449 while (*(++data) == ' ')
1452 MIPI_TRACE("****%d:%d\n", data-buf, count);
1455 MIPI_TRACE("payload entry is larger than 32\n");
1458 sscanf(data, "%x,", (unsigned int *)(str + i)); /* -c 1,29,02,03,05,06,> pro */
1459 data = strstr(data, ",");
1470 rk32_mipi_dsi_send_packet(dsi1, str, read_val);
1472 rk32_mipi_dsi_send_packet(dsi1, str, read_val);
1483 reg_proc_write_exit:
1489 int reg_proc_close1(struct inode *inode, struct file *file)
1494 struct file_operations reg_proc_fops1 = {
1495 .owner = THIS_MODULE,
1496 .open = reg_proc_open,
1497 .release = reg_proc_close1,
1498 .write = reg_proc_write1,
1502 #if 0/* def CONFIG_MIPI_DSI_LINUX */
1503 static irqreturn_t rk32_mipi_dsi_irq_handler(int irq, void *data)
1505 printk("-------rk32_mipi_dsi_irq_handler-------\n");
1511 static int dwc_phy_test_rd(struct dsi *dsi, unsigned char test_code)
1515 rk32_dsi_set_bits(dsi, 0x10000 | test_code, PHY_TEST_CTRL1);
1516 rk32_dsi_set_bits(dsi, 0x2, PHY_TEST_CTRL0);
1517 rk32_dsi_set_bits(dsi, 0x0, PHY_TEST_CTRL0);
1519 val = rk32_dsi_get_bits(dsi, PHY_TEST_CTRL1);
1523 static int rk32_dsi_enable(void)
1525 MIPI_DBG("rk32_dsi_enable-------\n");
1526 rk_fb_get_prmry_screen(dsi0->screen.screen);
1527 dsi0->screen.lcdc_id = dsi0->screen.screen->lcdc_id;
1528 rk32_init_phy_mode(dsi0->screen.lcdc_id);
1531 if (rk_mipi_get_dsi_num() == 2)
1534 rk_mipi_screen_standby(0);
1537 After the core reset, DPI waits for the first VSYNC active transition to start signal sampling, including
1538 pixel data, and preventing image transmission in the middle of a frame.
1540 dsi_is_enable(0, 0);
1541 if (rk_mipi_get_dsi_num() == 2)
1542 dsi_is_enable(1, 0);
1544 dsi_enable_video_mode(0, 1);
1545 if (rk_mipi_get_dsi_num() == 2)
1546 dsi_enable_video_mode(1, 1);
1548 dsi_is_enable(0, 1);
1549 if (rk_mipi_get_dsi_num() == 2)
1550 dsi_is_enable(1, 1);
1554 #ifdef CONFIG_MIPI_DSI_LINUX
1555 static int rk32_dsi_disable(void)
1557 MIPI_DBG("rk32_dsi_disable-------\n");
1558 rk_mipi_screen_standby(1);
1560 if (rk_mipi_get_dsi_num() == 2)
1565 static struct rk_fb_trsm_ops trsm_dsi_ops = {
1566 .enable = rk32_dsi_enable,
1567 .disable = rk32_dsi_disable,
1568 .dsp_pwr_on = rk32_mipi_power_up_DDR,
1569 .dsp_pwr_off = rk32_mipi_power_down_DDR,
1572 static void rk32_init_phy_mode(int lcdc_id)
1574 int val0 = 0, val1 = 0;
1576 MIPI_DBG("rk32_init_phy_mode----------lcdc_id=%d\n", lcdc_id);
1578 if (dsi0->ops.id == DWC_DSI_VERSION_RK312x)
1581 /* D-PHY mode select */
1582 if (rk_mipi_get_dsi_num() == 1) {
1584 /* 1'b1: VOP LIT output to DSI host0;1'b0: VOP BIG output to DSI host0 */
1585 val0 = 0x1 << 22 | 0x1 << 6;
1587 val0 = 0x1 << 22 | 0x0 << 6;
1588 writel_relaxed(val0, RK_GRF_VIRT + RK3288_GRF_SOC_CON6);
1591 val0 = 0x1 << 25 | 0x1 << 9 | 0x1 << 22 | 0x1 << 6;
1592 val1 = 0x1 << 31 | 0x1 << 30 | 0x0 << 15 | 0x1 << 14;
1594 val0 = 0x1 << 25 | 0x0 << 9 | 0x1 << 22 | 0x0 << 14;
1595 val1 = 0x1 << 31 | 0x1 << 30 | 0x0 << 15 | 0x1 << 14;
1597 writel_relaxed(val0, RK_GRF_VIRT + RK3288_GRF_SOC_CON6);
1598 writel_relaxed(val1, RK_GRF_VIRT + RK3288_GRF_SOC_CON14);
1602 #ifdef CONFIG_MIPI_DSI_LINUX
1603 static int rk32_mipi_power_down_DDR(void)
1605 dsi_is_enable(0, 0);
1606 if (rk_mipi_get_dsi_num() == 2)
1607 dsi_is_enable(1, 0);
1611 static int rk32_mipi_power_up_DDR(void)
1613 dsi_is_enable(0, 0);
1614 if (rk_mipi_get_dsi_num() == 2)
1615 dsi_is_enable(1, 0);
1616 dsi_enable_video_mode(0, 1);
1617 dsi_enable_video_mode(1, 1);
1618 dsi_is_enable(0, 1);
1619 if (rk_mipi_get_dsi_num() == 2)
1620 dsi_is_enable(1, 1);
1629 static struct dsi_type dsi_rk312x = {
1630 .label = "rk312-dsi",
1631 .dsi_id = DWC_DSI_VERSION_RK312x,
1634 static struct dsi_type dsi_rk32 = {
1635 .label = "rk32-dsi",
1636 .dsi_id = DWC_DSI_VERSION,
1639 static const struct of_device_id of_rk_mipi_dsi_match[] = {
1640 { .compatible = "rockchip,rk32-dsi", .data = &dsi_rk32},
1641 { .compatible = "rockchip,rk312x-dsi", .data = &dsi_rk312x},
1645 static int rk32_mipi_dsi_probe(struct platform_device *pdev)
1650 struct mipi_dsi_ops *ops;
1651 struct rk_screen *screen;
1652 struct mipi_dsi_screen *dsi_screen;
1653 struct resource *res_host, *res_phy;
1654 const struct dsi_type *data;
1655 const struct of_device_id *of_id =
1656 of_match_device(of_rk_mipi_dsi_match, &pdev->dev);
1658 dev_err(&pdev->dev, "failed to match device\n");
1663 dsi = devm_kzalloc(&pdev->dev, sizeof(struct dsi), GFP_KERNEL);
1665 dev_err(&pdev->dev, "request struct dsi fail!\n");
1668 dsi->ops.id = data->dsi_id;
1669 printk(KERN_INFO "%s\n", data->label);
1671 if (dsi->ops.id == DWC_DSI_VERSION) {
1672 res_host = platform_get_resource(pdev, IORESOURCE_MEM, 0);
1673 dsi->host.membase = devm_request_and_ioremap(&pdev->dev, res_host);
1674 if (!dsi->host.membase) {
1675 dev_err(&pdev->dev, "get resource mipi host membase fail!\n");
1678 } else if (dsi->ops.id == DWC_DSI_VERSION_RK312x) {
1679 res_host = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mipi_dsi_host");
1680 dsi->host.membase = devm_request_and_ioremap(&pdev->dev, res_host);
1681 if (!dsi->host.membase) {
1682 dev_err(&pdev->dev, "get resource mipi host membase fail!\n");
1685 res_phy = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mipi_dsi_phy");
1686 dsi->phy.membase = devm_request_and_ioremap(&pdev->dev, res_phy);
1687 if (!dsi->phy.membase) {
1688 dev_err(&pdev->dev, "get resource mipi phy membase fail!\n");
1693 dsi->phy.refclk = devm_clk_get(&pdev->dev, "clk_mipi_24m");
1694 if (unlikely(IS_ERR(dsi->phy.refclk))) {
1695 dev_err(&pdev->dev, "get clk_mipi_24m clock fail\n");
1696 return PTR_ERR(dsi->phy.refclk);
1699 /* Get the mipi phy pclk */
1700 dsi->dsi_pclk = devm_clk_get(&pdev->dev, "pclk_mipi_dsi");
1701 if (unlikely(IS_ERR(dsi->dsi_pclk))) {
1702 dev_err(&pdev->dev, "get pclk_mipi_dsi clock fail\n");
1703 return PTR_ERR(dsi->dsi_pclk);
1706 if (dsi->ops.id == DWC_DSI_VERSION_RK312x) {
1707 /* Get the mipi host pclk */
1708 dsi->dsi_host_pclk = devm_clk_get(&pdev->dev, "pclk_mipi_dsi_host");
1709 if (unlikely(IS_ERR(dsi->dsi_host_pclk))) {
1710 dev_err(&pdev->dev, "get pclk_mipi_dsi_host clock fail\n");
1711 return PTR_ERR(dsi->dsi_host_pclk);
1713 /* Get the pd_vio AHB h2p bridge clock */
1714 dsi->h2p_hclk = devm_clk_get(&pdev->dev, "hclk_vio_h2p");
1715 if (unlikely(IS_ERR(dsi->h2p_hclk))) {
1716 dev_err(&pdev->dev, "get hclk_vio_h2p clock fail\n");
1717 return PTR_ERR(dsi->h2p_hclk);
1720 dsi->dsi_pd = devm_clk_get(&pdev->dev, "pd_mipi_dsi");
1721 if (unlikely(IS_ERR(dsi->dsi_pd))) {
1722 dev_err(&pdev->dev, "get pd_mipi_dsi clock fail\n");
1723 return PTR_ERR(dsi->dsi_pd);
1725 dsi->host.irq = platform_get_irq(pdev, 0);
1726 if (dsi->host.irq < 0) {
1727 dev_err(&pdev->dev, "no irq resource?\n");
1728 return dsi->host.irq;
1731 ret = request_irq(dsi->host.irq, rk32_mipi_dsi_irq_handler, 0,dev_name(&pdev->dev), dsi);
1733 dev_err(&pdev->dev, "request mipi_dsi irq fail\n");
1737 printk("dsi->host.irq =%d\n", dsi->host.irq);
1739 disable_irq(dsi->host.irq);
1741 screen = devm_kzalloc(&pdev->dev, sizeof(struct rk_screen), GFP_KERNEL);
1743 dev_err(&pdev->dev, "request struct rk_screen fail!\n");
1746 rk_fb_get_prmry_screen(screen);
1752 ops->get_id = rk32_mipi_dsi_get_id,
1753 ops->dsi_send_packet = rk32_mipi_dsi_send_packet;
1754 ops->dsi_read_dcs_packet = rk32_mipi_dsi_read_dcs_packet,
1755 ops->dsi_enable_video_mode = rk32_mipi_dsi_enable_video_mode,
1756 ops->dsi_enable_command_mode = rk32_mipi_dsi_enable_command_mode,
1757 ops->dsi_enable_hs_clk = rk32_mipi_dsi_enable_hs_clk,
1758 ops->dsi_is_active = rk32_mipi_dsi_is_active,
1759 ops->dsi_is_enable = rk32_mipi_dsi_is_enable,
1760 ops->power_up = rk32_mipi_dsi_power_up,
1761 ops->power_down = rk32_mipi_dsi_power_down,
1762 ops->dsi_init = rk_mipi_dsi_init,
1764 dsi_screen = &dsi->screen;
1765 dsi_screen->screen = screen;
1766 dsi_screen->type = screen->type;
1767 dsi_screen->face = screen->face;
1768 dsi_screen->lcdc_id = screen->lcdc_id;
1769 dsi_screen->screen_id = screen->screen_id;
1770 dsi_screen->pixclock = screen->mode.pixclock;
1771 dsi_screen->left_margin = screen->mode.left_margin;
1772 dsi_screen->right_margin = screen->mode.right_margin;
1773 dsi_screen->hsync_len = screen->mode.hsync_len;
1774 dsi_screen->upper_margin = screen->mode.upper_margin;
1775 dsi_screen->lower_margin = screen->mode.lower_margin;
1776 dsi_screen->vsync_len = screen->mode.vsync_len;
1777 dsi_screen->x_res = screen->mode.xres;
1778 dsi_screen->y_res = screen->mode.yres;
1779 dsi_screen->pin_hsync = screen->pin_hsync;
1780 dsi_screen->pin_vsync = screen->pin_vsync;
1781 dsi_screen->pin_den = screen->pin_den;
1782 dsi_screen->pin_dclk = screen->pin_dclk;
1783 dsi_screen->dsi_lane = rk_mipi_get_dsi_lane();
1784 /* dsi_screen->dsi_video_mode = screen->dsi_video_mode; */
1785 dsi_screen->dsi_lane = rk_mipi_get_dsi_lane();
1786 dsi_screen->hs_tx_clk = rk_mipi_get_dsi_clk();
1787 /* dsi_screen->lcdc_id = 1; */
1791 sprintf(ops->name, "rk_mipi_dsi.%d", dsi->dsi_id);
1792 platform_set_drvdata(pdev, dsi);
1794 ret = rk_mipi_dsi_probe(dsi);
1796 dev_err(&pdev->dev, "rk mipi_dsi probe fail!\n");
1797 dev_err(&pdev->dev, "%s\n", RK_MIPI_DSI_VERSION_AND_TIME);
1803 if(!support_uboot_display())
1804 rk32_init_phy_mode(dsi_screen->lcdc_id);
1806 rk_fb_trsm_ops_register(&trsm_dsi_ops, SCREEN_MIPI);
1807 #ifdef MIPI_DSI_REGISTER_IO
1808 debugfs_create_file("mipidsi0", S_IFREG | S_IRUGO, dsi->debugfs_dir, dsi,
1814 #ifdef MIPI_DSI_REGISTER_IO
1815 debugfs_create_file("mipidsi1", S_IFREG | S_IRUGO, dsi->debugfs_dir, dsi,
1820 if (support_uboot_display()) {
1821 clk_prepare_enable(dsi->phy.refclk);
1822 clk_prepare_enable(dsi->dsi_pclk);
1823 if (dsi->ops.id == DWC_DSI_VERSION_RK312x) {
1824 clk_prepare_enable(dsi->dsi_host_pclk);
1825 clk_prepare_enable(dsi->h2p_hclk);
1827 clk_prepare_enable(dsi->dsi_pd);
1830 dev_info(&pdev->dev, "rk mipi_dsi probe success!\n");
1831 dev_info(&pdev->dev, "%s\n", RK_MIPI_DSI_VERSION_AND_TIME);
1836 static struct platform_driver rk32_mipi_dsi_driver = {
1837 .probe = rk32_mipi_dsi_probe,
1839 .name = "rk32-mipi",
1840 .owner = THIS_MODULE,
1842 .of_match_table = of_rk_mipi_dsi_match,
1847 static int __init rk32_mipi_dsi_init(void)
1849 return platform_driver_register(&rk32_mipi_dsi_driver);
1851 fs_initcall(rk32_mipi_dsi_init);
1853 static void __exit rk32_mipi_dsi_exit(void)
1855 platform_driver_unregister(&rk32_mipi_dsi_driver);
1857 module_exit(rk32_mipi_dsi_exit);