2 * Copyright (c) 2010 Sascha Hauer <s.hauer@pengutronix.de>
3 * Copyright (C) 2005-2009 Freescale Semiconductor, Inc.
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; either version 2 of the License, or (at your
8 * option) any later version.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
12 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15 #include <linux/export.h>
16 #include <linux/module.h>
17 #include <linux/types.h>
18 #include <linux/errno.h>
20 #include <linux/err.h>
21 #include <linux/platform_device.h>
23 #include <video/imx-ipu-v3.h>
30 struct clk *clk_di; /* display input clock */
31 struct clk *clk_ipu; /* IPU bus clock */
32 struct clk *clk_di_pixel; /* resulting pixel clock */
37 static DEFINE_MUTEX(di_mutex);
39 struct di_sync_config {
46 int cnt_polarity_gen_en;
47 int cnt_polarity_clr_src;
48 int cnt_polarity_trigger_src;
70 DI_SYNC_INT_HSYNC = 2,
78 #define DI_GENERAL 0x0000
79 #define DI_BS_CLKGEN0 0x0004
80 #define DI_BS_CLKGEN1 0x0008
81 #define DI_SW_GEN0(gen) (0x000c + 4 * ((gen) - 1))
82 #define DI_SW_GEN1(gen) (0x0030 + 4 * ((gen) - 1))
83 #define DI_STP_REP(gen) (0x0148 + 4 * (((gen) - 1)/2))
84 #define DI_SYNC_AS_GEN 0x0054
85 #define DI_DW_GEN(gen) (0x0058 + 4 * (gen))
86 #define DI_DW_SET(gen, set) (0x0088 + 4 * ((gen) + 0xc * (set)))
87 #define DI_SER_CONF 0x015c
92 #define DI_SCR_CONF 0x0170
93 #define DI_STAT 0x0174
95 #define DI_SW_GEN0_RUN_COUNT(x) ((x) << 19)
96 #define DI_SW_GEN0_RUN_SRC(x) ((x) << 16)
97 #define DI_SW_GEN0_OFFSET_COUNT(x) ((x) << 3)
98 #define DI_SW_GEN0_OFFSET_SRC(x) ((x) << 0)
100 #define DI_SW_GEN1_CNT_POL_GEN_EN(x) ((x) << 29)
101 #define DI_SW_GEN1_CNT_CLR_SRC(x) ((x) << 25)
102 #define DI_SW_GEN1_CNT_POL_TRIGGER_SRC(x) ((x) << 12)
103 #define DI_SW_GEN1_CNT_POL_CLR_SRC(x) ((x) << 9)
104 #define DI_SW_GEN1_CNT_DOWN(x) ((x) << 16)
105 #define DI_SW_GEN1_CNT_UP(x) (x)
106 #define DI_SW_GEN1_AUTO_RELOAD (0x10000000)
108 #define DI_DW_GEN_ACCESS_SIZE_OFFSET 24
109 #define DI_DW_GEN_COMPONENT_SIZE_OFFSET 16
111 #define DI_GEN_POLARITY_1 (1 << 0)
112 #define DI_GEN_POLARITY_2 (1 << 1)
113 #define DI_GEN_POLARITY_3 (1 << 2)
114 #define DI_GEN_POLARITY_4 (1 << 3)
115 #define DI_GEN_POLARITY_5 (1 << 4)
116 #define DI_GEN_POLARITY_6 (1 << 5)
117 #define DI_GEN_POLARITY_7 (1 << 6)
118 #define DI_GEN_POLARITY_8 (1 << 7)
119 #define DI_GEN_POLARITY_DISP_CLK (1 << 17)
120 #define DI_GEN_DI_CLK_EXT (1 << 20)
121 #define DI_GEN_DI_VSYNC_EXT (1 << 21)
123 #define DI_POL_DRDY_DATA_POLARITY (1 << 7)
124 #define DI_POL_DRDY_POLARITY_15 (1 << 4)
126 #define DI_VSYNC_SEL_OFFSET 13
128 static inline u32 ipu_di_read(struct ipu_di *di, unsigned offset)
130 return readl(di->base + offset);
133 static inline void ipu_di_write(struct ipu_di *di, u32 value, unsigned offset)
135 writel(value, di->base + offset);
138 static void ipu_di_data_wave_config(struct ipu_di *di,
140 int access_size, int component_size)
143 reg = (access_size << DI_DW_GEN_ACCESS_SIZE_OFFSET) |
144 (component_size << DI_DW_GEN_COMPONENT_SIZE_OFFSET);
145 ipu_di_write(di, reg, DI_DW_GEN(wave_gen));
148 static void ipu_di_data_pin_config(struct ipu_di *di, int wave_gen, int di_pin,
149 int set, int up, int down)
153 reg = ipu_di_read(di, DI_DW_GEN(wave_gen));
154 reg &= ~(0x3 << (di_pin * 2));
155 reg |= set << (di_pin * 2);
156 ipu_di_write(di, reg, DI_DW_GEN(wave_gen));
158 ipu_di_write(di, (down << 16) | up, DI_DW_SET(wave_gen, set));
161 static void ipu_di_sync_config(struct ipu_di *di, struct di_sync_config *config,
162 int start, int count)
167 for (i = 0; i < count; i++) {
168 struct di_sync_config *c = &config[i];
169 int wave_gen = start + i + 1;
171 if ((c->run_count >= 0x1000) || (c->offset_count >= 0x1000) ||
172 (c->repeat_count >= 0x1000) ||
173 (c->cnt_up >= 0x400) ||
174 (c->cnt_down >= 0x400)) {
175 dev_err(di->ipu->dev, "DI%d counters out of range.\n",
180 reg = DI_SW_GEN0_RUN_COUNT(c->run_count) |
181 DI_SW_GEN0_RUN_SRC(c->run_src) |
182 DI_SW_GEN0_OFFSET_COUNT(c->offset_count) |
183 DI_SW_GEN0_OFFSET_SRC(c->offset_src);
184 ipu_di_write(di, reg, DI_SW_GEN0(wave_gen));
186 reg = DI_SW_GEN1_CNT_POL_GEN_EN(c->cnt_polarity_gen_en) |
187 DI_SW_GEN1_CNT_CLR_SRC(c->cnt_clr_src) |
188 DI_SW_GEN1_CNT_POL_TRIGGER_SRC(
189 c->cnt_polarity_trigger_src) |
190 DI_SW_GEN1_CNT_POL_CLR_SRC(c->cnt_polarity_clr_src) |
191 DI_SW_GEN1_CNT_DOWN(c->cnt_down) |
192 DI_SW_GEN1_CNT_UP(c->cnt_up);
194 /* Enable auto reload */
195 if (c->repeat_count == 0)
196 reg |= DI_SW_GEN1_AUTO_RELOAD;
198 ipu_di_write(di, reg, DI_SW_GEN1(wave_gen));
200 reg = ipu_di_read(di, DI_STP_REP(wave_gen));
201 reg &= ~(0xffff << (16 * ((wave_gen - 1) & 0x1)));
202 reg |= c->repeat_count << (16 * ((wave_gen - 1) & 0x1));
203 ipu_di_write(di, reg, DI_STP_REP(wave_gen));
207 static void ipu_di_sync_config_interlaced(struct ipu_di *di,
208 struct ipu_di_signal_cfg *sig)
210 u32 h_total = sig->mode.hactive + sig->mode.hsync_len +
211 sig->mode.hback_porch + sig->mode.hfront_porch;
212 u32 v_total = sig->mode.vactive + sig->mode.vsync_len +
213 sig->mode.vback_porch + sig->mode.vfront_porch;
215 struct di_sync_config cfg[] = {
217 .run_count = h_total / 2 - 1,
218 .run_src = DI_SYNC_CLK,
220 .run_count = h_total - 11,
221 .run_src = DI_SYNC_CLK,
224 .run_count = v_total * 2 - 1,
225 .run_src = DI_SYNC_INT_HSYNC,
227 .offset_src = DI_SYNC_INT_HSYNC,
230 .run_count = v_total / 2 - 1,
231 .run_src = DI_SYNC_HSYNC,
232 .offset_count = sig->mode.vback_porch,
233 .offset_src = DI_SYNC_HSYNC,
235 .cnt_clr_src = DI_SYNC_VSYNC,
237 .run_src = DI_SYNC_HSYNC,
238 .repeat_count = sig->mode.vactive / 2,
241 .run_count = v_total - 1,
242 .run_src = DI_SYNC_HSYNC,
244 .run_count = v_total / 2 - 1,
245 .run_src = DI_SYNC_HSYNC,
247 .offset_src = DI_SYNC_HSYNC,
249 .cnt_clr_src = DI_SYNC_VSYNC,
251 .run_src = DI_SYNC_CLK,
252 .offset_count = sig->mode.hback_porch,
253 .offset_src = DI_SYNC_CLK,
254 .repeat_count = sig->mode.hactive,
257 .run_count = v_total - 1,
258 .run_src = DI_SYNC_INT_HSYNC,
259 .offset_count = v_total / 2,
260 .offset_src = DI_SYNC_INT_HSYNC,
261 .cnt_clr_src = DI_SYNC_HSYNC,
266 ipu_di_sync_config(di, cfg, 0, ARRAY_SIZE(cfg));
268 /* set gentime select and tag sel */
269 reg = ipu_di_read(di, DI_SW_GEN1(9));
271 reg |= (3 - 1) << 29 | 0x00008000;
272 ipu_di_write(di, reg, DI_SW_GEN1(9));
274 ipu_di_write(di, v_total / 2 - 1, DI_SCR_CONF);
277 static void ipu_di_sync_config_noninterlaced(struct ipu_di *di,
278 struct ipu_di_signal_cfg *sig, int div)
280 u32 h_total = sig->mode.hactive + sig->mode.hsync_len +
281 sig->mode.hback_porch + sig->mode.hfront_porch;
282 u32 v_total = sig->mode.vactive + sig->mode.vsync_len +
283 sig->mode.vback_porch + sig->mode.vfront_porch;
284 struct di_sync_config cfg[] = {
287 .run_count = h_total - 1,
288 .run_src = DI_SYNC_CLK,
291 .run_count = h_total - 1,
292 .run_src = DI_SYNC_CLK,
293 .offset_count = div * sig->v_to_h_sync,
294 .offset_src = DI_SYNC_CLK,
295 .cnt_polarity_gen_en = 1,
296 .cnt_polarity_trigger_src = DI_SYNC_CLK,
297 .cnt_down = sig->mode.hsync_len * 2,
300 .run_count = v_total - 1,
301 .run_src = DI_SYNC_INT_HSYNC,
302 .cnt_polarity_gen_en = 1,
303 .cnt_polarity_trigger_src = DI_SYNC_INT_HSYNC,
304 .cnt_down = sig->mode.vsync_len * 2,
307 .run_src = DI_SYNC_HSYNC,
308 .offset_count = sig->mode.vsync_len +
309 sig->mode.vback_porch,
310 .offset_src = DI_SYNC_HSYNC,
311 .repeat_count = sig->mode.vactive,
312 .cnt_clr_src = DI_SYNC_VSYNC,
314 /* 5: Pixel Active, referenced by DC */
315 .run_src = DI_SYNC_CLK,
316 .offset_count = sig->mode.hsync_len +
317 sig->mode.hback_porch,
318 .offset_src = DI_SYNC_CLK,
319 .repeat_count = sig->mode.hactive,
320 .cnt_clr_src = 5, /* Line Active */
331 /* can't use #7 and #8 for line active and pixel active counters */
332 struct di_sync_config cfg_vga[] = {
335 .run_count = h_total - 1,
336 .run_src = DI_SYNC_CLK,
339 .run_count = v_total - 1,
340 .run_src = DI_SYNC_INT_HSYNC,
343 .run_src = DI_SYNC_INT_HSYNC,
344 .offset_count = sig->mode.vsync_len +
345 sig->mode.vback_porch,
346 .offset_src = DI_SYNC_INT_HSYNC,
347 .repeat_count = sig->mode.vactive,
348 .cnt_clr_src = 3 /* VSYNC */,
350 /* PIN4: HSYNC for VGA via TVEv2 on TQ MBa53 */
351 .run_count = h_total - 1,
352 .run_src = DI_SYNC_CLK,
353 .offset_count = div * sig->v_to_h_sync + 18, /* magic value from Freescale TVE driver */
354 .offset_src = DI_SYNC_CLK,
355 .cnt_polarity_gen_en = 1,
356 .cnt_polarity_trigger_src = DI_SYNC_CLK,
357 .cnt_down = sig->mode.hsync_len * 2,
359 /* 5: Pixel Active signal to DC */
360 .run_src = DI_SYNC_CLK,
361 .offset_count = sig->mode.hsync_len +
362 sig->mode.hback_porch,
363 .offset_src = DI_SYNC_CLK,
364 .repeat_count = sig->mode.hactive,
365 .cnt_clr_src = 4, /* Line Active */
367 /* PIN6: VSYNC for VGA via TVEv2 on TQ MBa53 */
368 .run_count = v_total - 1,
369 .run_src = DI_SYNC_INT_HSYNC,
370 .offset_count = 1, /* magic value from Freescale TVE driver */
371 .offset_src = DI_SYNC_INT_HSYNC,
372 .cnt_polarity_gen_en = 1,
373 .cnt_polarity_trigger_src = DI_SYNC_INT_HSYNC,
374 .cnt_down = sig->mode.vsync_len * 2,
376 /* PIN4: HSYNC for VGA via TVEv2 on i.MX53-QSB */
377 .run_count = h_total - 1,
378 .run_src = DI_SYNC_CLK,
379 .offset_count = div * sig->v_to_h_sync + 18, /* magic value from Freescale TVE driver */
380 .offset_src = DI_SYNC_CLK,
381 .cnt_polarity_gen_en = 1,
382 .cnt_polarity_trigger_src = DI_SYNC_CLK,
383 .cnt_down = sig->mode.hsync_len * 2,
385 /* PIN6: VSYNC for VGA via TVEv2 on i.MX53-QSB */
386 .run_count = v_total - 1,
387 .run_src = DI_SYNC_INT_HSYNC,
388 .offset_count = 1, /* magic value from Freescale TVE driver */
389 .offset_src = DI_SYNC_INT_HSYNC,
390 .cnt_polarity_gen_en = 1,
391 .cnt_polarity_trigger_src = DI_SYNC_INT_HSYNC,
392 .cnt_down = sig->mode.vsync_len * 2,
398 ipu_di_write(di, v_total - 1, DI_SCR_CONF);
399 if (sig->hsync_pin == 2 && sig->vsync_pin == 3)
400 ipu_di_sync_config(di, cfg, 0, ARRAY_SIZE(cfg));
402 ipu_di_sync_config(di, cfg_vga, 0, ARRAY_SIZE(cfg_vga));
405 static void ipu_di_config_clock(struct ipu_di *di,
406 const struct ipu_di_signal_cfg *sig)
412 if (sig->clkflags & IPU_DI_CLKMODE_EXT) {
414 * CLKMODE_EXT means we must use the DI clock: this is
415 * needed for things like LVDS which needs to feed the
416 * DI and LDB with the same pixel clock.
420 if (sig->clkflags & IPU_DI_CLKMODE_SYNC) {
422 * CLKMODE_SYNC means that we want the DI to be
423 * clocked at the same rate as the parent clock.
424 * This is needed (eg) for LDB which needs to be
425 * fed with the same pixel clock. We assume that
426 * the LDB clock has already been set correctly.
431 * We can use the divider. We should really have
432 * a flag here indicating whether the bridge can
433 * cope with a fractional divider or not. For the
434 * time being, let's go for simplicitly and
437 unsigned long in_rate;
440 clk_set_rate(clk, sig->mode.pixelclock);
442 in_rate = clk_get_rate(clk);
443 div = DIV_ROUND_CLOSEST(in_rate, sig->mode.pixelclock);
444 div = clamp(div, 1U, 255U);
450 * For other interfaces, we can arbitarily select between
451 * the DI specific clock and the internal IPU clock. See
452 * DI_GENERAL bit 20. We select the IPU clock if it can
453 * give us a clock rate within 1% of the requested frequency,
454 * otherwise we use the DI clock.
456 unsigned long rate, clkrate;
459 clkrate = clk_get_rate(di->clk_ipu);
460 div = DIV_ROUND_CLOSEST(clkrate, sig->mode.pixelclock);
461 div = clamp(div, 1U, 255U);
462 rate = clkrate / div;
464 error = rate / (sig->mode.pixelclock / 1000);
466 dev_dbg(di->ipu->dev, " IPU clock can give %lu with divider %u, error %d.%u%%\n",
467 rate, div, (signed)(error - 1000) / 10, error % 10);
469 /* Allow a 1% error */
470 if (error < 1010 && error >= 990) {
475 unsigned long in_rate;
480 clk_set_rate(clk, sig->mode.pixelclock);
482 in_rate = clk_get_rate(clk);
483 div = DIV_ROUND_CLOSEST(in_rate, sig->mode.pixelclock);
484 div = clamp(div, 1U, 255U);
490 di->clk_di_pixel = clk;
492 /* Set the divider */
493 ipu_di_write(di, clkgen0, DI_BS_CLKGEN0);
496 * Set the high/low periods. Bits 24:16 give us the falling edge,
497 * and bits 8:0 give the rising edge. LSB is fraction, and is
498 * based on the divider above. We want a 50% duty cycle, so set
499 * the falling edge to be half the divider.
501 ipu_di_write(di, (clkgen0 >> 4) << 16, DI_BS_CLKGEN1);
503 /* Finally select the input clock */
504 val = ipu_di_read(di, DI_GENERAL) & ~DI_GEN_DI_CLK_EXT;
505 if (clk == di->clk_di)
506 val |= DI_GEN_DI_CLK_EXT;
507 ipu_di_write(di, val, DI_GENERAL);
509 dev_dbg(di->ipu->dev, "Want %luHz IPU %luHz DI %luHz using %s, %luHz\n",
510 sig->mode.pixelclock,
511 clk_get_rate(di->clk_ipu),
512 clk_get_rate(di->clk_di),
513 clk == di->clk_di ? "DI" : "IPU",
514 clk_get_rate(di->clk_di_pixel) / (clkgen0 >> 4));
518 * This function is called to adjust a video mode to IPU restrictions.
519 * It is meant to be called from drm crtc mode_fixup() methods.
521 int ipu_di_adjust_videomode(struct ipu_di *di, struct videomode *mode)
525 if (mode->vfront_porch >= 2)
528 diff = 2 - mode->vfront_porch;
530 if (mode->vback_porch >= diff) {
531 mode->vfront_porch = 2;
532 mode->vback_porch -= diff;
533 } else if (mode->vsync_len > diff) {
534 mode->vfront_porch = 2;
535 mode->vsync_len = mode->vsync_len - diff;
537 dev_warn(di->ipu->dev, "failed to adjust videomode\n");
541 dev_warn(di->ipu->dev, "videomode adapted for IPU restrictions\n");
544 EXPORT_SYMBOL_GPL(ipu_di_adjust_videomode);
546 int ipu_di_init_sync_panel(struct ipu_di *di, struct ipu_di_signal_cfg *sig)
549 u32 di_gen, vsync_cnt;
552 dev_dbg(di->ipu->dev, "disp %d: panel size = %d x %d\n",
553 di->id, sig->mode.hactive, sig->mode.vactive);
555 if ((sig->mode.vsync_len == 0) || (sig->mode.hsync_len == 0))
558 dev_dbg(di->ipu->dev, "Clocks: IPU %luHz DI %luHz Needed %luHz\n",
559 clk_get_rate(di->clk_ipu),
560 clk_get_rate(di->clk_di),
561 sig->mode.pixelclock);
563 mutex_lock(&di_mutex);
565 ipu_di_config_clock(di, sig);
567 div = ipu_di_read(di, DI_BS_CLKGEN0) & 0xfff;
568 div = div / 16; /* Now divider is integer portion */
570 /* Setup pixel clock timing */
571 /* Down time is half of period */
572 ipu_di_write(di, (div << 16), DI_BS_CLKGEN1);
574 ipu_di_data_wave_config(di, SYNC_WAVE, div - 1, div - 1);
575 ipu_di_data_pin_config(di, SYNC_WAVE, DI_PIN15, 3, 0, div * 2);
577 di_gen = ipu_di_read(di, DI_GENERAL) & DI_GEN_DI_CLK_EXT;
578 di_gen |= DI_GEN_DI_VSYNC_EXT;
580 if (sig->mode.flags & DISPLAY_FLAGS_INTERLACED) {
581 ipu_di_sync_config_interlaced(di, sig);
584 di_gen |= 0x10000000;
585 di_gen |= DI_GEN_POLARITY_5;
586 di_gen |= DI_GEN_POLARITY_8;
590 if (sig->mode.flags & DISPLAY_FLAGS_HSYNC_HIGH)
591 di_gen |= DI_GEN_POLARITY_3;
592 if (sig->mode.flags & DISPLAY_FLAGS_VSYNC_HIGH)
593 di_gen |= DI_GEN_POLARITY_2;
595 ipu_di_sync_config_noninterlaced(di, sig, div);
600 * TODO: change only for TVEv2, parallel display
603 if (!(sig->hsync_pin == 2 && sig->vsync_pin == 3))
606 if (sig->mode.flags & DISPLAY_FLAGS_HSYNC_HIGH) {
607 if (sig->hsync_pin == 2)
608 di_gen |= DI_GEN_POLARITY_2;
609 else if (sig->hsync_pin == 4)
610 di_gen |= DI_GEN_POLARITY_4;
611 else if (sig->hsync_pin == 7)
612 di_gen |= DI_GEN_POLARITY_7;
614 if (sig->mode.flags & DISPLAY_FLAGS_VSYNC_HIGH) {
615 if (sig->vsync_pin == 3)
616 di_gen |= DI_GEN_POLARITY_3;
617 else if (sig->vsync_pin == 6)
618 di_gen |= DI_GEN_POLARITY_6;
619 else if (sig->vsync_pin == 8)
620 di_gen |= DI_GEN_POLARITY_8;
625 di_gen |= DI_GEN_POLARITY_DISP_CLK;
627 ipu_di_write(di, di_gen, DI_GENERAL);
629 ipu_di_write(di, (--vsync_cnt << DI_VSYNC_SEL_OFFSET) | 0x00000002,
632 reg = ipu_di_read(di, DI_POL);
633 reg &= ~(DI_POL_DRDY_DATA_POLARITY | DI_POL_DRDY_POLARITY_15);
636 reg |= DI_POL_DRDY_POLARITY_15;
638 reg |= DI_POL_DRDY_DATA_POLARITY;
640 ipu_di_write(di, reg, DI_POL);
642 mutex_unlock(&di_mutex);
646 EXPORT_SYMBOL_GPL(ipu_di_init_sync_panel);
648 int ipu_di_enable(struct ipu_di *di)
652 WARN_ON(IS_ERR(di->clk_di_pixel));
654 ret = clk_prepare_enable(di->clk_di_pixel);
658 ipu_module_enable(di->ipu, di->module);
662 EXPORT_SYMBOL_GPL(ipu_di_enable);
664 int ipu_di_disable(struct ipu_di *di)
666 WARN_ON(IS_ERR(di->clk_di_pixel));
668 ipu_module_disable(di->ipu, di->module);
670 clk_disable_unprepare(di->clk_di_pixel);
674 EXPORT_SYMBOL_GPL(ipu_di_disable);
676 int ipu_di_get_num(struct ipu_di *di)
680 EXPORT_SYMBOL_GPL(ipu_di_get_num);
682 static DEFINE_MUTEX(ipu_di_lock);
684 struct ipu_di *ipu_di_get(struct ipu_soc *ipu, int disp)
689 return ERR_PTR(-EINVAL);
691 di = ipu->di_priv[disp];
693 mutex_lock(&ipu_di_lock);
696 di = ERR_PTR(-EBUSY);
702 mutex_unlock(&ipu_di_lock);
706 EXPORT_SYMBOL_GPL(ipu_di_get);
708 void ipu_di_put(struct ipu_di *di)
710 mutex_lock(&ipu_di_lock);
714 mutex_unlock(&ipu_di_lock);
716 EXPORT_SYMBOL_GPL(ipu_di_put);
718 int ipu_di_init(struct ipu_soc *ipu, struct device *dev, int id,
720 u32 module, struct clk *clk_ipu)
727 di = devm_kzalloc(dev, sizeof(*di), GFP_KERNEL);
731 ipu->di_priv[id] = di;
733 di->clk_di = devm_clk_get(dev, id ? "di1" : "di0");
734 if (IS_ERR(di->clk_di))
735 return PTR_ERR(di->clk_di);
739 di->clk_ipu = clk_ipu;
740 di->base = devm_ioremap(dev, base, PAGE_SIZE);
744 ipu_di_write(di, 0x10, DI_BS_CLKGEN0);
746 dev_dbg(dev, "DI%d base: 0x%08lx remapped to %p\n",
754 void ipu_di_exit(struct ipu_soc *ipu, int id)