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14#include <linux/bitops.h>
15#include <linux/clk.h>
16#include <linux/mfd/syscon.h>
17#include <linux/platform_device.h>
18#include <linux/regmap.h>
19#include <linux/reset.h>
20
21#include <video/display_timing.h>
22
23#include <drm/drm_atomic.h>
24#include <drm/drm_atomic_helper.h>
25#include <drm/drm_crtc.h>
26#include <drm/drm_drv.h>
27#include <drm/drm_fb_cma_helper.h>
28#include <drm/drm_fourcc.h>
29#include <drm/drm_gem_cma_helper.h>
30#include <drm/drm_plane_helper.h>
31#include <drm/drm_probe_helper.h>
32#include <drm/drm_vblank.h>
33#include <drm/drm_gem_framebuffer_helper.h>
34
35#include "kirin_drm_drv.h"
36#include "kirin_ade_reg.h"
37
38#define OUT_OVLY ADE_OVLY2
39#define ADE_DEBUG 1
40
41
42struct ade_hw_ctx {
43 void __iomem *base;
44 struct regmap *noc_regmap;
45 struct clk *ade_core_clk;
46 struct clk *media_noc_clk;
47 struct clk *ade_pix_clk;
48 struct reset_control *reset;
49 bool power_on;
50 int irq;
51
52 struct drm_crtc *crtc;
53};
54
55static const struct kirin_format ade_formats[] = {
56
57 { DRM_FORMAT_RGB565, ADE_RGB_565 },
58 { DRM_FORMAT_BGR565, ADE_BGR_565 },
59
60 { DRM_FORMAT_RGB888, ADE_RGB_888 },
61 { DRM_FORMAT_BGR888, ADE_BGR_888 },
62
63 { DRM_FORMAT_XRGB8888, ADE_XRGB_8888 },
64 { DRM_FORMAT_XBGR8888, ADE_XBGR_8888 },
65 { DRM_FORMAT_RGBA8888, ADE_RGBA_8888 },
66 { DRM_FORMAT_BGRA8888, ADE_BGRA_8888 },
67 { DRM_FORMAT_ARGB8888, ADE_ARGB_8888 },
68 { DRM_FORMAT_ABGR8888, ADE_ABGR_8888 },
69};
70
71static const u32 channel_formats[] = {
72
73 DRM_FORMAT_RGB565, DRM_FORMAT_BGR565, DRM_FORMAT_RGB888,
74 DRM_FORMAT_BGR888, DRM_FORMAT_XRGB8888, DRM_FORMAT_XBGR8888,
75 DRM_FORMAT_RGBA8888, DRM_FORMAT_BGRA8888, DRM_FORMAT_ARGB8888,
76 DRM_FORMAT_ABGR8888
77};
78
79
80static u32 ade_get_format(u32 pixel_format)
81{
82 int i;
83
84 for (i = 0; i < ARRAY_SIZE(ade_formats); i++)
85 if (ade_formats[i].pixel_format == pixel_format)
86 return ade_formats[i].hw_format;
87
88
89 DRM_ERROR("Not found pixel format!!fourcc_format= %d\n",
90 pixel_format);
91 return ADE_FORMAT_UNSUPPORT;
92}
93
94static void ade_update_reload_bit(void __iomem *base, u32 bit_num, u32 val)
95{
96 u32 bit_ofst, reg_num;
97
98 bit_ofst = bit_num % 32;
99 reg_num = bit_num / 32;
100
101 ade_update_bits(base + ADE_RELOAD_DIS(reg_num), bit_ofst,
102 MASK(1), !!val);
103}
104
105static u32 ade_read_reload_bit(void __iomem *base, u32 bit_num)
106{
107 u32 tmp, bit_ofst, reg_num;
108
109 bit_ofst = bit_num % 32;
110 reg_num = bit_num / 32;
111
112 tmp = readl(base + ADE_RELOAD_DIS(reg_num));
113 return !!(BIT(bit_ofst) & tmp);
114}
115
116static void ade_init(struct ade_hw_ctx *ctx)
117{
118 void __iomem *base = ctx->base;
119
120
121 ade_update_bits(base + ADE_CTRL1, AUTO_CLK_GATE_EN_OFST,
122 AUTO_CLK_GATE_EN, ADE_ENABLE);
123
124 writel(0, base + ADE_OVLY1_TRANS_CFG);
125 writel(0, base + ADE_OVLY_CTL);
126 writel(0, base + ADE_OVLYX_CTL(OUT_OVLY));
127
128 writel(MASK(32), base + ADE_SOFT_RST_SEL(0));
129 writel(MASK(32), base + ADE_SOFT_RST_SEL(1));
130 writel(MASK(32), base + ADE_RELOAD_DIS(0));
131 writel(MASK(32), base + ADE_RELOAD_DIS(1));
132
133
134
135
136 ade_update_bits(base + ADE_CTRL, FRM_END_START_OFST,
137 FRM_END_START_MASK, REG_EFFECTIVE_IN_ADEEN_FRMEND);
138}
139
140static bool ade_crtc_mode_fixup(struct drm_crtc *crtc,
141 const struct drm_display_mode *mode,
142 struct drm_display_mode *adjusted_mode)
143{
144 struct kirin_crtc *kcrtc = to_kirin_crtc(crtc);
145 struct ade_hw_ctx *ctx = kcrtc->hw_ctx;
146
147 adjusted_mode->clock =
148 clk_round_rate(ctx->ade_pix_clk, mode->clock * 1000) / 1000;
149 return true;
150}
151
152
153static void ade_set_pix_clk(struct ade_hw_ctx *ctx,
154 struct drm_display_mode *mode,
155 struct drm_display_mode *adj_mode)
156{
157 u32 clk_Hz = mode->clock * 1000;
158 int ret;
159
160
161
162
163
164 ret = clk_set_rate(ctx->ade_pix_clk, clk_Hz);
165 if (ret)
166 DRM_ERROR("failed to set pixel clk %dHz (%d)\n", clk_Hz, ret);
167 adj_mode->clock = clk_get_rate(ctx->ade_pix_clk) / 1000;
168}
169
170static void ade_ldi_set_mode(struct ade_hw_ctx *ctx,
171 struct drm_display_mode *mode,
172 struct drm_display_mode *adj_mode)
173{
174 void __iomem *base = ctx->base;
175 u32 width = mode->hdisplay;
176 u32 height = mode->vdisplay;
177 u32 hfp, hbp, hsw, vfp, vbp, vsw;
178 u32 plr_flags;
179
180 plr_flags = (mode->flags & DRM_MODE_FLAG_NVSYNC) ? FLAG_NVSYNC : 0;
181 plr_flags |= (mode->flags & DRM_MODE_FLAG_NHSYNC) ? FLAG_NHSYNC : 0;
182 hfp = mode->hsync_start - mode->hdisplay;
183 hbp = mode->htotal - mode->hsync_end;
184 hsw = mode->hsync_end - mode->hsync_start;
185 vfp = mode->vsync_start - mode->vdisplay;
186 vbp = mode->vtotal - mode->vsync_end;
187 vsw = mode->vsync_end - mode->vsync_start;
188 if (vsw > 15) {
189 DRM_DEBUG_DRIVER("vsw exceeded 15\n");
190 vsw = 15;
191 }
192
193 writel((hbp << HBP_OFST) | hfp, base + LDI_HRZ_CTRL0);
194
195 writel(hsw - 1, base + LDI_HRZ_CTRL1);
196 writel((vbp << VBP_OFST) | vfp, base + LDI_VRT_CTRL0);
197
198 writel(vsw - 1, base + LDI_VRT_CTRL1);
199
200 writel(((height - 1) << VSIZE_OFST) | (width - 1),
201 base + LDI_DSP_SIZE);
202 writel(plr_flags, base + LDI_PLR_CTRL);
203
204
205 writel(((width - 1) << OUTPUT_XSIZE_OFST) | (height - 1),
206 base + ADE_OVLY_OUTPUT_SIZE(OUT_OVLY));
207
208
209 writel(CTRAN_BYPASS_ON, base + ADE_CTRAN_DIS(ADE_CTRAN6));
210
211 writel(width * height - 1, base + ADE_CTRAN_IMAGE_SIZE(ADE_CTRAN6));
212 ade_update_reload_bit(base, CTRAN_OFST + ADE_CTRAN6, 0);
213
214 ade_set_pix_clk(ctx, mode, adj_mode);
215
216 DRM_DEBUG_DRIVER("set mode: %dx%d\n", width, height);
217}
218
219static int ade_power_up(struct ade_hw_ctx *ctx)
220{
221 int ret;
222
223 ret = clk_prepare_enable(ctx->media_noc_clk);
224 if (ret) {
225 DRM_ERROR("failed to enable media_noc_clk (%d)\n", ret);
226 return ret;
227 }
228
229 ret = reset_control_deassert(ctx->reset);
230 if (ret) {
231 DRM_ERROR("failed to deassert reset\n");
232 return ret;
233 }
234
235 ret = clk_prepare_enable(ctx->ade_core_clk);
236 if (ret) {
237 DRM_ERROR("failed to enable ade_core_clk (%d)\n", ret);
238 return ret;
239 }
240
241 ade_init(ctx);
242 ctx->power_on = true;
243 return 0;
244}
245
246static void ade_power_down(struct ade_hw_ctx *ctx)
247{
248 void __iomem *base = ctx->base;
249
250 writel(ADE_DISABLE, base + LDI_CTRL);
251
252 writel(DSI_PCLK_OFF, base + LDI_HDMI_DSI_GT);
253
254 clk_disable_unprepare(ctx->ade_core_clk);
255 reset_control_assert(ctx->reset);
256 clk_disable_unprepare(ctx->media_noc_clk);
257 ctx->power_on = false;
258}
259
260static void ade_set_medianoc_qos(struct ade_hw_ctx *ctx)
261{
262 struct regmap *map = ctx->noc_regmap;
263
264 regmap_update_bits(map, ADE0_QOSGENERATOR_MODE,
265 QOSGENERATOR_MODE_MASK, BYPASS_MODE);
266 regmap_update_bits(map, ADE0_QOSGENERATOR_EXTCONTROL,
267 SOCKET_QOS_EN, SOCKET_QOS_EN);
268
269 regmap_update_bits(map, ADE1_QOSGENERATOR_MODE,
270 QOSGENERATOR_MODE_MASK, BYPASS_MODE);
271 regmap_update_bits(map, ADE1_QOSGENERATOR_EXTCONTROL,
272 SOCKET_QOS_EN, SOCKET_QOS_EN);
273}
274
275static int ade_crtc_enable_vblank(struct drm_crtc *crtc)
276{
277 struct kirin_crtc *kcrtc = to_kirin_crtc(crtc);
278 struct ade_hw_ctx *ctx = kcrtc->hw_ctx;
279 void __iomem *base = ctx->base;
280
281 if (!ctx->power_on)
282 (void)ade_power_up(ctx);
283
284 ade_update_bits(base + LDI_INT_EN, FRAME_END_INT_EN_OFST,
285 MASK(1), 1);
286
287 return 0;
288}
289
290static void ade_crtc_disable_vblank(struct drm_crtc *crtc)
291{
292 struct kirin_crtc *kcrtc = to_kirin_crtc(crtc);
293 struct ade_hw_ctx *ctx = kcrtc->hw_ctx;
294 void __iomem *base = ctx->base;
295
296 if (!ctx->power_on) {
297 DRM_ERROR("power is down! vblank disable fail\n");
298 return;
299 }
300
301 ade_update_bits(base + LDI_INT_EN, FRAME_END_INT_EN_OFST,
302 MASK(1), 0);
303}
304
305static irqreturn_t ade_irq_handler(int irq, void *data)
306{
307 struct ade_hw_ctx *ctx = data;
308 struct drm_crtc *crtc = ctx->crtc;
309 void __iomem *base = ctx->base;
310 u32 status;
311
312 status = readl(base + LDI_MSK_INT);
313 DRM_DEBUG_VBL("LDI IRQ: status=0x%X\n", status);
314
315
316 if (status & BIT(FRAME_END_INT_EN_OFST)) {
317 ade_update_bits(base + LDI_INT_CLR, FRAME_END_INT_EN_OFST,
318 MASK(1), 1);
319 drm_crtc_handle_vblank(crtc);
320 }
321
322 return IRQ_HANDLED;
323}
324
325static void ade_display_enable(struct ade_hw_ctx *ctx)
326{
327 void __iomem *base = ctx->base;
328 u32 out_fmt = LDI_OUT_RGB_888;
329
330
331 writel(ADE_ENABLE, base + ADE_OVLYX_CTL(OUT_OVLY));
332 ade_update_reload_bit(base, OVLY_OFST + OUT_OVLY, 0);
333
334
335 writel(DISP_SRC_OVLY2, base + ADE_DISP_SRC_CFG);
336
337
338 writel(ADE_ENABLE, base + ADE_EN);
339
340 writel(NORMAL_MODE, base + LDI_WORK_MODE);
341 writel((out_fmt << BPP_OFST) | DATA_GATE_EN | LDI_EN,
342 base + LDI_CTRL);
343
344 writel(DSI_PCLK_ON, base + LDI_HDMI_DSI_GT);
345}
346
347#if ADE_DEBUG
348static void ade_rdma_dump_regs(void __iomem *base, u32 ch)
349{
350 u32 reg_ctrl, reg_addr, reg_size, reg_stride, reg_space, reg_en;
351 u32 val;
352
353 reg_ctrl = RD_CH_CTRL(ch);
354 reg_addr = RD_CH_ADDR(ch);
355 reg_size = RD_CH_SIZE(ch);
356 reg_stride = RD_CH_STRIDE(ch);
357 reg_space = RD_CH_SPACE(ch);
358 reg_en = RD_CH_EN(ch);
359
360 val = ade_read_reload_bit(base, RDMA_OFST + ch);
361 DRM_DEBUG_DRIVER("[rdma%d]: reload(%d)\n", ch + 1, val);
362 val = readl(base + reg_ctrl);
363 DRM_DEBUG_DRIVER("[rdma%d]: reg_ctrl(0x%08x)\n", ch + 1, val);
364 val = readl(base + reg_addr);
365 DRM_DEBUG_DRIVER("[rdma%d]: reg_addr(0x%08x)\n", ch + 1, val);
366 val = readl(base + reg_size);
367 DRM_DEBUG_DRIVER("[rdma%d]: reg_size(0x%08x)\n", ch + 1, val);
368 val = readl(base + reg_stride);
369 DRM_DEBUG_DRIVER("[rdma%d]: reg_stride(0x%08x)\n", ch + 1, val);
370 val = readl(base + reg_space);
371 DRM_DEBUG_DRIVER("[rdma%d]: reg_space(0x%08x)\n", ch + 1, val);
372 val = readl(base + reg_en);
373 DRM_DEBUG_DRIVER("[rdma%d]: reg_en(0x%08x)\n", ch + 1, val);
374}
375
376static void ade_clip_dump_regs(void __iomem *base, u32 ch)
377{
378 u32 val;
379
380 val = ade_read_reload_bit(base, CLIP_OFST + ch);
381 DRM_DEBUG_DRIVER("[clip%d]: reload(%d)\n", ch + 1, val);
382 val = readl(base + ADE_CLIP_DISABLE(ch));
383 DRM_DEBUG_DRIVER("[clip%d]: reg_clip_disable(0x%08x)\n", ch + 1, val);
384 val = readl(base + ADE_CLIP_SIZE0(ch));
385 DRM_DEBUG_DRIVER("[clip%d]: reg_clip_size0(0x%08x)\n", ch + 1, val);
386 val = readl(base + ADE_CLIP_SIZE1(ch));
387 DRM_DEBUG_DRIVER("[clip%d]: reg_clip_size1(0x%08x)\n", ch + 1, val);
388}
389
390static void ade_compositor_routing_dump_regs(void __iomem *base, u32 ch)
391{
392 u8 ovly_ch = 0;
393 u32 val;
394
395 val = readl(base + ADE_OVLY_CH_XY0(ovly_ch));
396 DRM_DEBUG_DRIVER("[overlay ch%d]: reg_ch_xy0(0x%08x)\n", ovly_ch, val);
397 val = readl(base + ADE_OVLY_CH_XY1(ovly_ch));
398 DRM_DEBUG_DRIVER("[overlay ch%d]: reg_ch_xy1(0x%08x)\n", ovly_ch, val);
399 val = readl(base + ADE_OVLY_CH_CTL(ovly_ch));
400 DRM_DEBUG_DRIVER("[overlay ch%d]: reg_ch_ctl(0x%08x)\n", ovly_ch, val);
401}
402
403static void ade_dump_overlay_compositor_regs(void __iomem *base, u32 comp)
404{
405 u32 val;
406
407 val = ade_read_reload_bit(base, OVLY_OFST + comp);
408 DRM_DEBUG_DRIVER("[overlay%d]: reload(%d)\n", comp + 1, val);
409 writel(ADE_ENABLE, base + ADE_OVLYX_CTL(comp));
410 DRM_DEBUG_DRIVER("[overlay%d]: reg_ctl(0x%08x)\n", comp + 1, val);
411 val = readl(base + ADE_OVLY_CTL);
412 DRM_DEBUG_DRIVER("ovly_ctl(0x%08x)\n", val);
413}
414
415static void ade_dump_regs(void __iomem *base)
416{
417 u32 i;
418
419
420 for (i = 0; i < ADE_CH_NUM; i++) {
421
422 ade_rdma_dump_regs(base, i);
423
424
425 ade_clip_dump_regs(base, i);
426
427
428 ade_compositor_routing_dump_regs(base, i);
429 }
430
431
432 ade_dump_overlay_compositor_regs(base, OUT_OVLY);
433}
434#else
435static void ade_dump_regs(void __iomem *base) { }
436#endif
437
438static void ade_crtc_atomic_enable(struct drm_crtc *crtc,
439 struct drm_crtc_state *old_state)
440{
441 struct kirin_crtc *kcrtc = to_kirin_crtc(crtc);
442 struct ade_hw_ctx *ctx = kcrtc->hw_ctx;
443 int ret;
444
445 if (kcrtc->enable)
446 return;
447
448 if (!ctx->power_on) {
449 ret = ade_power_up(ctx);
450 if (ret)
451 return;
452 }
453
454 ade_set_medianoc_qos(ctx);
455 ade_display_enable(ctx);
456 ade_dump_regs(ctx->base);
457 drm_crtc_vblank_on(crtc);
458 kcrtc->enable = true;
459}
460
461static void ade_crtc_atomic_disable(struct drm_crtc *crtc,
462 struct drm_crtc_state *old_state)
463{
464 struct kirin_crtc *kcrtc = to_kirin_crtc(crtc);
465 struct ade_hw_ctx *ctx = kcrtc->hw_ctx;
466
467 if (!kcrtc->enable)
468 return;
469
470 drm_crtc_vblank_off(crtc);
471 ade_power_down(ctx);
472 kcrtc->enable = false;
473}
474
475static void ade_crtc_mode_set_nofb(struct drm_crtc *crtc)
476{
477 struct kirin_crtc *kcrtc = to_kirin_crtc(crtc);
478 struct ade_hw_ctx *ctx = kcrtc->hw_ctx;
479 struct drm_display_mode *mode = &crtc->state->mode;
480 struct drm_display_mode *adj_mode = &crtc->state->adjusted_mode;
481
482 if (!ctx->power_on)
483 (void)ade_power_up(ctx);
484 ade_ldi_set_mode(ctx, mode, adj_mode);
485}
486
487static void ade_crtc_atomic_begin(struct drm_crtc *crtc,
488 struct drm_crtc_state *old_state)
489{
490 struct kirin_crtc *kcrtc = to_kirin_crtc(crtc);
491 struct ade_hw_ctx *ctx = kcrtc->hw_ctx;
492 struct drm_display_mode *mode = &crtc->state->mode;
493 struct drm_display_mode *adj_mode = &crtc->state->adjusted_mode;
494
495 if (!ctx->power_on)
496 (void)ade_power_up(ctx);
497 ade_ldi_set_mode(ctx, mode, adj_mode);
498}
499
500static void ade_crtc_atomic_flush(struct drm_crtc *crtc,
501 struct drm_crtc_state *old_state)
502
503{
504 struct kirin_crtc *kcrtc = to_kirin_crtc(crtc);
505 struct ade_hw_ctx *ctx = kcrtc->hw_ctx;
506 struct drm_pending_vblank_event *event = crtc->state->event;
507 void __iomem *base = ctx->base;
508
509
510 if (kcrtc->enable) {
511 ade_dump_regs(base);
512
513 writel(ADE_ENABLE, base + ADE_EN);
514 }
515
516 if (event) {
517 crtc->state->event = NULL;
518
519 spin_lock_irq(&crtc->dev->event_lock);
520 if (drm_crtc_vblank_get(crtc) == 0)
521 drm_crtc_arm_vblank_event(crtc, event);
522 else
523 drm_crtc_send_vblank_event(crtc, event);
524 spin_unlock_irq(&crtc->dev->event_lock);
525 }
526}
527
528static const struct drm_crtc_helper_funcs ade_crtc_helper_funcs = {
529 .mode_fixup = ade_crtc_mode_fixup,
530 .mode_set_nofb = ade_crtc_mode_set_nofb,
531 .atomic_begin = ade_crtc_atomic_begin,
532 .atomic_flush = ade_crtc_atomic_flush,
533 .atomic_enable = ade_crtc_atomic_enable,
534 .atomic_disable = ade_crtc_atomic_disable,
535};
536
537static const struct drm_crtc_funcs ade_crtc_funcs = {
538 .destroy = drm_crtc_cleanup,
539 .set_config = drm_atomic_helper_set_config,
540 .page_flip = drm_atomic_helper_page_flip,
541 .reset = drm_atomic_helper_crtc_reset,
542 .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
543 .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
544 .enable_vblank = ade_crtc_enable_vblank,
545 .disable_vblank = ade_crtc_disable_vblank,
546};
547
548static void ade_rdma_set(void __iomem *base, struct drm_framebuffer *fb,
549 u32 ch, u32 y, u32 in_h, u32 fmt)
550{
551 struct drm_gem_cma_object *obj = drm_fb_cma_get_gem_obj(fb, 0);
552 struct drm_format_name_buf format_name;
553 u32 reg_ctrl, reg_addr, reg_size, reg_stride, reg_space, reg_en;
554 u32 stride = fb->pitches[0];
555 u32 addr = (u32)obj->paddr + y * stride;
556
557 DRM_DEBUG_DRIVER("rdma%d: (y=%d, height=%d), stride=%d, paddr=0x%x\n",
558 ch + 1, y, in_h, stride, (u32)obj->paddr);
559 DRM_DEBUG_DRIVER("addr=0x%x, fb:%dx%d, pixel_format=%d(%s)\n",
560 addr, fb->width, fb->height, fmt,
561 drm_get_format_name(fb->format->format, &format_name));
562
563
564 reg_ctrl = RD_CH_CTRL(ch);
565 reg_addr = RD_CH_ADDR(ch);
566 reg_size = RD_CH_SIZE(ch);
567 reg_stride = RD_CH_STRIDE(ch);
568 reg_space = RD_CH_SPACE(ch);
569 reg_en = RD_CH_EN(ch);
570
571
572
573
574 writel((fmt << 16) & 0x1f0000, base + reg_ctrl);
575 writel(addr, base + reg_addr);
576 writel((in_h << 16) | stride, base + reg_size);
577 writel(stride, base + reg_stride);
578 writel(in_h * stride, base + reg_space);
579 writel(ADE_ENABLE, base + reg_en);
580 ade_update_reload_bit(base, RDMA_OFST + ch, 0);
581}
582
583static void ade_rdma_disable(void __iomem *base, u32 ch)
584{
585 u32 reg_en;
586
587
588 reg_en = RD_CH_EN(ch);
589 writel(0, base + reg_en);
590 ade_update_reload_bit(base, RDMA_OFST + ch, 1);
591}
592
593static void ade_clip_set(void __iomem *base, u32 ch, u32 fb_w, u32 x,
594 u32 in_w, u32 in_h)
595{
596 u32 disable_val;
597 u32 clip_left;
598 u32 clip_right;
599
600
601
602
603 if (fb_w == in_w) {
604 disable_val = 1;
605 clip_left = 0;
606 clip_right = 0;
607 } else {
608 disable_val = 0;
609 clip_left = x;
610 clip_right = fb_w - (x + in_w) - 1;
611 }
612
613 DRM_DEBUG_DRIVER("clip%d: clip_left=%d, clip_right=%d\n",
614 ch + 1, clip_left, clip_right);
615
616 writel(disable_val, base + ADE_CLIP_DISABLE(ch));
617 writel((fb_w - 1) << 16 | (in_h - 1), base + ADE_CLIP_SIZE0(ch));
618 writel(clip_left << 16 | clip_right, base + ADE_CLIP_SIZE1(ch));
619 ade_update_reload_bit(base, CLIP_OFST + ch, 0);
620}
621
622static void ade_clip_disable(void __iomem *base, u32 ch)
623{
624 writel(1, base + ADE_CLIP_DISABLE(ch));
625 ade_update_reload_bit(base, CLIP_OFST + ch, 1);
626}
627
628static bool has_Alpha_channel(int format)
629{
630 switch (format) {
631 case ADE_ARGB_8888:
632 case ADE_ABGR_8888:
633 case ADE_RGBA_8888:
634 case ADE_BGRA_8888:
635 return true;
636 default:
637 return false;
638 }
639}
640
641static void ade_get_blending_params(u32 fmt, u8 glb_alpha, u8 *alp_mode,
642 u8 *alp_sel, u8 *under_alp_sel)
643{
644 bool has_alpha = has_Alpha_channel(fmt);
645
646
647
648
649 if (has_alpha && glb_alpha < 255)
650 *alp_mode = ADE_ALP_PIXEL_AND_GLB;
651 else if (has_alpha)
652 *alp_mode = ADE_ALP_PIXEL;
653 else
654 *alp_mode = ADE_ALP_GLOBAL;
655
656
657
658
659 *alp_sel = ADE_ALP_MUL_COEFF_3;
660 *under_alp_sel = ADE_ALP_MUL_COEFF_2;
661}
662
663static void ade_compositor_routing_set(void __iomem *base, u8 ch,
664 u32 x0, u32 y0,
665 u32 in_w, u32 in_h, u32 fmt)
666{
667 u8 ovly_ch = 0;
668 u8 glb_alpha = 255;
669 u32 x1 = x0 + in_w - 1;
670 u32 y1 = y0 + in_h - 1;
671 u32 val;
672 u8 alp_sel;
673 u8 under_alp_sel;
674 u8 alp_mode;
675
676 ade_get_blending_params(fmt, glb_alpha, &alp_mode, &alp_sel,
677 &under_alp_sel);
678
679
680
681 writel(x0 << 16 | y0, base + ADE_OVLY_CH_XY0(ovly_ch));
682 writel(x1 << 16 | y1, base + ADE_OVLY_CH_XY1(ovly_ch));
683 val = (ch + 1) << CH_SEL_OFST | BIT(CH_EN_OFST) |
684 alp_sel << CH_ALP_SEL_OFST |
685 under_alp_sel << CH_UNDER_ALP_SEL_OFST |
686 glb_alpha << CH_ALP_GBL_OFST |
687 alp_mode << CH_ALP_MODE_OFST;
688 writel(val, base + ADE_OVLY_CH_CTL(ovly_ch));
689
690 ade_update_bits(base + ADE_OVLY_CTL, CH_OVLY_SEL_OFST(ovly_ch),
691 CH_OVLY_SEL_MASK, CH_OVLY_SEL_VAL(OUT_OVLY));
692}
693
694static void ade_compositor_routing_disable(void __iomem *base, u32 ch)
695{
696 u8 ovly_ch = 0;
697
698
699 ade_update_bits(base + ADE_OVLY_CH_CTL(ovly_ch), CH_EN_OFST,
700 MASK(1), 0);
701
702 ade_update_bits(base + ADE_OVLY_CTL, CH_OVLY_SEL_OFST(ovly_ch),
703 CH_OVLY_SEL_MASK, 0);
704}
705
706
707
708
709static void ade_update_channel(struct kirin_plane *kplane,
710 struct drm_framebuffer *fb, int crtc_x,
711 int crtc_y, unsigned int crtc_w,
712 unsigned int crtc_h, u32 src_x,
713 u32 src_y, u32 src_w, u32 src_h)
714{
715 struct ade_hw_ctx *ctx = kplane->hw_ctx;
716 void __iomem *base = ctx->base;
717 u32 fmt = ade_get_format(fb->format->format);
718 u32 ch = kplane->ch;
719 u32 in_w;
720 u32 in_h;
721
722 DRM_DEBUG_DRIVER("channel%d: src:(%d, %d)-%dx%d, crtc:(%d, %d)-%dx%d",
723 ch + 1, src_x, src_y, src_w, src_h,
724 crtc_x, crtc_y, crtc_w, crtc_h);
725
726
727 in_w = src_w;
728 in_h = src_h;
729 ade_rdma_set(base, fb, ch, src_y, in_h, fmt);
730
731
732 ade_clip_set(base, ch, fb->width, src_x, in_w, in_h);
733
734
735
736
737
738
739 ade_compositor_routing_set(base, ch, crtc_x, crtc_y, in_w, in_h, fmt);
740}
741
742static void ade_disable_channel(struct kirin_plane *kplane)
743{
744 struct ade_hw_ctx *ctx = kplane->hw_ctx;
745 void __iomem *base = ctx->base;
746 u32 ch = kplane->ch;
747
748 DRM_DEBUG_DRIVER("disable channel%d\n", ch + 1);
749
750
751 ade_rdma_disable(base, ch);
752
753
754 ade_clip_disable(base, ch);
755
756
757 ade_compositor_routing_disable(base, ch);
758}
759
760static int ade_plane_atomic_check(struct drm_plane *plane,
761 struct drm_plane_state *state)
762{
763 struct drm_framebuffer *fb = state->fb;
764 struct drm_crtc *crtc = state->crtc;
765 struct drm_crtc_state *crtc_state;
766 u32 src_x = state->src_x >> 16;
767 u32 src_y = state->src_y >> 16;
768 u32 src_w = state->src_w >> 16;
769 u32 src_h = state->src_h >> 16;
770 int crtc_x = state->crtc_x;
771 int crtc_y = state->crtc_y;
772 u32 crtc_w = state->crtc_w;
773 u32 crtc_h = state->crtc_h;
774 u32 fmt;
775
776 if (!crtc || !fb)
777 return 0;
778
779 fmt = ade_get_format(fb->format->format);
780 if (fmt == ADE_FORMAT_UNSUPPORT)
781 return -EINVAL;
782
783 crtc_state = drm_atomic_get_crtc_state(state->state, crtc);
784 if (IS_ERR(crtc_state))
785 return PTR_ERR(crtc_state);
786
787 if (src_w != crtc_w || src_h != crtc_h) {
788 return -EINVAL;
789 }
790
791 if (src_x + src_w > fb->width ||
792 src_y + src_h > fb->height)
793 return -EINVAL;
794
795 if (crtc_x < 0 || crtc_y < 0)
796 return -EINVAL;
797
798 if (crtc_x + crtc_w > crtc_state->adjusted_mode.hdisplay ||
799 crtc_y + crtc_h > crtc_state->adjusted_mode.vdisplay)
800 return -EINVAL;
801
802 return 0;
803}
804
805static void ade_plane_atomic_update(struct drm_plane *plane,
806 struct drm_plane_state *old_state)
807{
808 struct drm_plane_state *state = plane->state;
809 struct kirin_plane *kplane = to_kirin_plane(plane);
810
811 ade_update_channel(kplane, state->fb, state->crtc_x, state->crtc_y,
812 state->crtc_w, state->crtc_h,
813 state->src_x >> 16, state->src_y >> 16,
814 state->src_w >> 16, state->src_h >> 16);
815}
816
817static void ade_plane_atomic_disable(struct drm_plane *plane,
818 struct drm_plane_state *old_state)
819{
820 struct kirin_plane *kplane = to_kirin_plane(plane);
821
822 ade_disable_channel(kplane);
823}
824
825static const struct drm_plane_helper_funcs ade_plane_helper_funcs = {
826 .atomic_check = ade_plane_atomic_check,
827 .atomic_update = ade_plane_atomic_update,
828 .atomic_disable = ade_plane_atomic_disable,
829};
830
831static struct drm_plane_funcs ade_plane_funcs = {
832 .update_plane = drm_atomic_helper_update_plane,
833 .disable_plane = drm_atomic_helper_disable_plane,
834 .destroy = drm_plane_cleanup,
835 .reset = drm_atomic_helper_plane_reset,
836 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
837 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
838};
839
840static void *ade_hw_ctx_alloc(struct platform_device *pdev,
841 struct drm_crtc *crtc)
842{
843 struct resource *res;
844 struct device *dev = &pdev->dev;
845 struct device_node *np = pdev->dev.of_node;
846 struct ade_hw_ctx *ctx = NULL;
847 int ret;
848
849 ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
850 if (!ctx) {
851 DRM_ERROR("failed to alloc ade_hw_ctx\n");
852 return ERR_PTR(-ENOMEM);
853 }
854
855 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
856 ctx->base = devm_ioremap_resource(dev, res);
857 if (IS_ERR(ctx->base)) {
858 DRM_ERROR("failed to remap ade io base\n");
859 return ERR_PTR(-EIO);
860 }
861
862 ctx->reset = devm_reset_control_get(dev, NULL);
863 if (IS_ERR(ctx->reset))
864 return ERR_PTR(-ENODEV);
865
866 ctx->noc_regmap =
867 syscon_regmap_lookup_by_phandle(np, "hisilicon,noc-syscon");
868 if (IS_ERR(ctx->noc_regmap)) {
869 DRM_ERROR("failed to get noc regmap\n");
870 return ERR_PTR(-ENODEV);
871 }
872
873 ctx->irq = platform_get_irq(pdev, 0);
874 if (ctx->irq < 0) {
875 DRM_ERROR("failed to get irq\n");
876 return ERR_PTR(-ENODEV);
877 }
878
879 ctx->ade_core_clk = devm_clk_get(dev, "clk_ade_core");
880 if (IS_ERR(ctx->ade_core_clk)) {
881 DRM_ERROR("failed to parse clk ADE_CORE\n");
882 return ERR_PTR(-ENODEV);
883 }
884
885 ctx->media_noc_clk = devm_clk_get(dev, "clk_codec_jpeg");
886 if (IS_ERR(ctx->media_noc_clk)) {
887 DRM_ERROR("failed to parse clk CODEC_JPEG\n");
888 return ERR_PTR(-ENODEV);
889 }
890
891 ctx->ade_pix_clk = devm_clk_get(dev, "clk_ade_pix");
892 if (IS_ERR(ctx->ade_pix_clk)) {
893 DRM_ERROR("failed to parse clk ADE_PIX\n");
894 return ERR_PTR(-ENODEV);
895 }
896
897
898 ret = devm_request_irq(dev, ctx->irq, ade_irq_handler,
899 IRQF_SHARED, dev->driver->name, ctx);
900 if (ret)
901 return ERR_PTR(-EIO);
902
903 ctx->crtc = crtc;
904
905 return ctx;
906}
907
908static void ade_hw_ctx_cleanup(void *hw_ctx)
909{
910}
911
912static const struct drm_mode_config_funcs ade_mode_config_funcs = {
913 .fb_create = drm_gem_fb_create,
914 .atomic_check = drm_atomic_helper_check,
915 .atomic_commit = drm_atomic_helper_commit,
916
917};
918
919DEFINE_DRM_GEM_CMA_FOPS(ade_fops);
920
921static struct drm_driver ade_driver = {
922 .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
923 .fops = &ade_fops,
924 DRM_GEM_CMA_DRIVER_OPS,
925 .name = "kirin",
926 .desc = "Hisilicon Kirin620 SoC DRM Driver",
927 .date = "20150718",
928 .major = 1,
929 .minor = 0,
930};
931
932struct kirin_drm_data ade_driver_data = {
933 .num_planes = ADE_CH_NUM,
934 .prim_plane = ADE_CH1,
935 .channel_formats = channel_formats,
936 .channel_formats_cnt = ARRAY_SIZE(channel_formats),
937 .config_max_width = 2048,
938 .config_max_height = 2048,
939 .driver = &ade_driver,
940 .crtc_helper_funcs = &ade_crtc_helper_funcs,
941 .crtc_funcs = &ade_crtc_funcs,
942 .plane_helper_funcs = &ade_plane_helper_funcs,
943 .plane_funcs = &ade_plane_funcs,
944 .mode_config_funcs = &ade_mode_config_funcs,
945
946 .alloc_hw_ctx = ade_hw_ctx_alloc,
947 .cleanup_hw_ctx = ade_hw_ctx_cleanup,
948};
949
