1 /* drivers/gpu/drm/exynos5433_drm_decon.c
3 * Copyright (C) 2015 Samsung Electronics Co.Ltd
5 * Joonyoung Shim <jy0922.shim@samsung.com>
6 * Hyungwon Hwang <human.hwang@samsung.com>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundationr
13 #include <linux/platform_device.h>
14 #include <linux/clk.h>
15 #include <linux/component.h>
16 #include <linux/mfd/syscon.h>
17 #include <linux/of_device.h>
18 #include <linux/of_gpio.h>
19 #include <linux/pm_runtime.h>
20 #include <linux/regmap.h>
22 #include <video/exynos5433_decon.h>
24 #include "exynos_drm_drv.h"
25 #include "exynos_drm_crtc.h"
26 #include "exynos_drm_fb.h"
27 #include "exynos_drm_plane.h"
28 #include "exynos_drm_iommu.h"
30 #define DSD_CFG_MUX 0x1004
31 #define DSD_CFG_MUX_TE_UNMASK_GLOBAL BIT(13)
34 #define MIN_FB_WIDTH_FOR_16WORD_BURST 128
36 #define IFTYPE_I80 (1 << 0)
37 #define I80_HW_TRG (1 << 1)
38 #define IFTYPE_HDMI (1 << 2)
40 static const char * const decon_clks_name[] = {
50 enum decon_flag_bits {
58 struct decon_context {
60 struct drm_device *drm_dev;
61 struct exynos_drm_crtc *crtc;
62 struct exynos_drm_plane planes[WINDOWS_NR];
63 struct exynos_drm_plane_config configs[WINDOWS_NR];
65 struct regmap *sysreg;
66 struct clk *clks[ARRAY_SIZE(decon_clks_name)];
69 unsigned long out_type;
71 spinlock_t vblank_lock;
75 static const uint32_t decon_formats[] = {
82 static const enum drm_plane_type decon_win_types[WINDOWS_NR] = {
83 DRM_PLANE_TYPE_PRIMARY,
84 DRM_PLANE_TYPE_OVERLAY,
85 DRM_PLANE_TYPE_CURSOR,
88 static inline void decon_set_bits(struct decon_context *ctx, u32 reg, u32 mask,
91 val = (val & mask) | (readl(ctx->addr + reg) & ~mask);
92 writel(val, ctx->addr + reg);
95 static int decon_enable_vblank(struct exynos_drm_crtc *crtc)
97 struct decon_context *ctx = crtc->ctx;
100 if (test_bit(BIT_SUSPENDED, &ctx->flags))
103 if (!test_and_set_bit(BIT_IRQS_ENABLED, &ctx->flags)) {
104 val = VIDINTCON0_INTEN;
105 if (ctx->out_type & IFTYPE_I80)
106 val |= VIDINTCON0_FRAMEDONE;
108 val |= VIDINTCON0_INTFRMEN | VIDINTCON0_FRAMESEL_FP;
110 writel(val, ctx->addr + DECON_VIDINTCON0);
116 static void decon_disable_vblank(struct exynos_drm_crtc *crtc)
118 struct decon_context *ctx = crtc->ctx;
120 if (test_bit(BIT_SUSPENDED, &ctx->flags))
123 if (test_and_clear_bit(BIT_IRQS_ENABLED, &ctx->flags))
124 writel(0, ctx->addr + DECON_VIDINTCON0);
127 /* return number of starts/ends of frame transmissions since reset */
128 static u32 decon_get_frame_count(struct decon_context *ctx, bool end)
130 u32 frm, pfrm, status, cnt = 2;
132 /* To get consistent result repeat read until frame id is stable.
133 * Usually the loop will be executed once, in rare cases when the loop
134 * is executed at frame change time 2nd pass will be needed.
136 frm = readl(ctx->addr + DECON_CRFMID);
138 status = readl(ctx->addr + DECON_VIDCON1);
140 frm = readl(ctx->addr + DECON_CRFMID);
141 } while (frm != pfrm && --cnt);
143 /* CRFMID is incremented on BPORCH in case of I80 and on VSYNC in case
144 * of RGB, it should be taken into account.
149 switch (status & (VIDCON1_VSTATUS_MASK | VIDCON1_I80_ACTIVE)) {
150 case VIDCON1_VSTATUS_VS:
151 if (!(ctx->out_type & IFTYPE_I80))
154 case VIDCON1_VSTATUS_BP:
157 case VIDCON1_I80_ACTIVE:
158 case VIDCON1_VSTATUS_AC:
169 static u32 decon_get_vblank_counter(struct exynos_drm_crtc *crtc)
171 struct decon_context *ctx = crtc->ctx;
173 if (test_bit(BIT_SUSPENDED, &ctx->flags))
176 return decon_get_frame_count(ctx, false);
179 static void decon_setup_trigger(struct decon_context *ctx)
181 if (!(ctx->out_type & (IFTYPE_I80 | I80_HW_TRG)))
184 if (!(ctx->out_type & I80_HW_TRG)) {
185 writel(TRIGCON_TRIGEN_PER_F | TRIGCON_TRIGEN_F |
186 TRIGCON_TE_AUTO_MASK | TRIGCON_SWTRIGEN,
187 ctx->addr + DECON_TRIGCON);
191 writel(TRIGCON_TRIGEN_PER_F | TRIGCON_TRIGEN_F | TRIGCON_HWTRIGMASK
192 | TRIGCON_HWTRIGEN, ctx->addr + DECON_TRIGCON);
194 if (regmap_update_bits(ctx->sysreg, DSD_CFG_MUX,
195 DSD_CFG_MUX_TE_UNMASK_GLOBAL, ~0))
196 DRM_ERROR("Cannot update sysreg.\n");
199 static void decon_commit(struct exynos_drm_crtc *crtc)
201 struct decon_context *ctx = crtc->ctx;
202 struct drm_display_mode *m = &crtc->base.mode;
203 bool interlaced = false;
206 if (test_bit(BIT_SUSPENDED, &ctx->flags))
209 if (ctx->out_type & IFTYPE_HDMI) {
210 m->crtc_hsync_start = m->crtc_hdisplay + 10;
211 m->crtc_hsync_end = m->crtc_htotal - 92;
212 m->crtc_vsync_start = m->crtc_vdisplay + 1;
213 m->crtc_vsync_end = m->crtc_vsync_start + 1;
214 if (m->flags & DRM_MODE_FLAG_INTERLACE)
218 decon_setup_trigger(ctx);
220 /* lcd on and use command if */
223 val |= VIDOUT_INTERLACE_EN_F;
224 if (ctx->out_type & IFTYPE_I80) {
225 val |= VIDOUT_COMMAND_IF;
227 val |= VIDOUT_RGB_IF;
230 writel(val, ctx->addr + DECON_VIDOUTCON0);
233 val = VIDTCON2_LINEVAL(m->vdisplay / 2 - 1) |
234 VIDTCON2_HOZVAL(m->hdisplay - 1);
236 val = VIDTCON2_LINEVAL(m->vdisplay - 1) |
237 VIDTCON2_HOZVAL(m->hdisplay - 1);
238 writel(val, ctx->addr + DECON_VIDTCON2);
240 if (!(ctx->out_type & IFTYPE_I80)) {
241 int vbp = m->crtc_vtotal - m->crtc_vsync_end;
242 int vfp = m->crtc_vsync_start - m->crtc_vdisplay;
246 val = VIDTCON00_VBPD_F(vbp - 1) | VIDTCON00_VFPD_F(vfp - 1);
247 writel(val, ctx->addr + DECON_VIDTCON00);
249 val = VIDTCON01_VSPW_F(
250 m->crtc_vsync_end - m->crtc_vsync_start - 1);
251 writel(val, ctx->addr + DECON_VIDTCON01);
253 val = VIDTCON10_HBPD_F(
254 m->crtc_htotal - m->crtc_hsync_end - 1) |
256 m->crtc_hsync_start - m->crtc_hdisplay - 1);
257 writel(val, ctx->addr + DECON_VIDTCON10);
259 val = VIDTCON11_HSPW_F(
260 m->crtc_hsync_end - m->crtc_hsync_start - 1);
261 writel(val, ctx->addr + DECON_VIDTCON11);
264 /* enable output and display signal */
265 decon_set_bits(ctx, DECON_VIDCON0, VIDCON0_ENVID | VIDCON0_ENVID_F, ~0);
267 decon_set_bits(ctx, DECON_UPDATE, STANDALONE_UPDATE_F, ~0);
270 static void decon_win_set_pixfmt(struct decon_context *ctx, unsigned int win,
271 struct drm_framebuffer *fb)
275 val = readl(ctx->addr + DECON_WINCONx(win));
276 val &= ~WINCONx_BPPMODE_MASK;
278 switch (fb->format->format) {
279 case DRM_FORMAT_XRGB1555:
280 val |= WINCONx_BPPMODE_16BPP_I1555;
281 val |= WINCONx_HAWSWP_F;
282 val |= WINCONx_BURSTLEN_16WORD;
284 case DRM_FORMAT_RGB565:
285 val |= WINCONx_BPPMODE_16BPP_565;
286 val |= WINCONx_HAWSWP_F;
287 val |= WINCONx_BURSTLEN_16WORD;
289 case DRM_FORMAT_XRGB8888:
290 val |= WINCONx_BPPMODE_24BPP_888;
291 val |= WINCONx_WSWP_F;
292 val |= WINCONx_BURSTLEN_16WORD;
294 case DRM_FORMAT_ARGB8888:
295 val |= WINCONx_BPPMODE_32BPP_A8888;
296 val |= WINCONx_WSWP_F | WINCONx_BLD_PIX_F | WINCONx_ALPHA_SEL_F;
297 val |= WINCONx_BURSTLEN_16WORD;
300 DRM_ERROR("Proper pixel format is not set\n");
304 DRM_DEBUG_KMS("bpp = %u\n", fb->format->cpp[0] * 8);
307 * In case of exynos, setting dma-burst to 16Word causes permanent
308 * tearing for very small buffers, e.g. cursor buffer. Burst Mode
309 * switching which is based on plane size is not recommended as
310 * plane size varies a lot towards the end of the screen and rapid
311 * movement causes unstable DMA which results into iommu crash/tear.
314 if (fb->width < MIN_FB_WIDTH_FOR_16WORD_BURST) {
315 val &= ~WINCONx_BURSTLEN_MASK;
316 val |= WINCONx_BURSTLEN_8WORD;
319 writel(val, ctx->addr + DECON_WINCONx(win));
322 static void decon_shadow_protect_win(struct decon_context *ctx, int win,
325 decon_set_bits(ctx, DECON_SHADOWCON, SHADOWCON_Wx_PROTECT(win),
329 static void decon_atomic_begin(struct exynos_drm_crtc *crtc)
331 struct decon_context *ctx = crtc->ctx;
334 if (test_bit(BIT_SUSPENDED, &ctx->flags))
337 for (i = ctx->first_win; i < WINDOWS_NR; i++)
338 decon_shadow_protect_win(ctx, i, true);
341 #define BIT_VAL(x, e, s) (((x) & ((1 << ((e) - (s) + 1)) - 1)) << (s))
342 #define COORDINATE_X(x) BIT_VAL((x), 23, 12)
343 #define COORDINATE_Y(x) BIT_VAL((x), 11, 0)
345 static void decon_update_plane(struct exynos_drm_crtc *crtc,
346 struct exynos_drm_plane *plane)
348 struct exynos_drm_plane_state *state =
349 to_exynos_plane_state(plane->base.state);
350 struct decon_context *ctx = crtc->ctx;
351 struct drm_framebuffer *fb = state->base.fb;
352 unsigned int win = plane->index;
353 unsigned int bpp = fb->format->cpp[0];
354 unsigned int pitch = fb->pitches[0];
355 dma_addr_t dma_addr = exynos_drm_fb_dma_addr(fb, 0);
358 if (test_bit(BIT_SUSPENDED, &ctx->flags))
361 if (crtc->base.mode.flags & DRM_MODE_FLAG_INTERLACE) {
362 val = COORDINATE_X(state->crtc.x) |
363 COORDINATE_Y(state->crtc.y / 2);
364 writel(val, ctx->addr + DECON_VIDOSDxA(win));
366 val = COORDINATE_X(state->crtc.x + state->crtc.w - 1) |
367 COORDINATE_Y((state->crtc.y + state->crtc.h) / 2 - 1);
368 writel(val, ctx->addr + DECON_VIDOSDxB(win));
370 val = COORDINATE_X(state->crtc.x) | COORDINATE_Y(state->crtc.y);
371 writel(val, ctx->addr + DECON_VIDOSDxA(win));
373 val = COORDINATE_X(state->crtc.x + state->crtc.w - 1) |
374 COORDINATE_Y(state->crtc.y + state->crtc.h - 1);
375 writel(val, ctx->addr + DECON_VIDOSDxB(win));
378 val = VIDOSD_Wx_ALPHA_R_F(0x0) | VIDOSD_Wx_ALPHA_G_F(0x0) |
379 VIDOSD_Wx_ALPHA_B_F(0x0);
380 writel(val, ctx->addr + DECON_VIDOSDxC(win));
382 val = VIDOSD_Wx_ALPHA_R_F(0x0) | VIDOSD_Wx_ALPHA_G_F(0x0) |
383 VIDOSD_Wx_ALPHA_B_F(0x0);
384 writel(val, ctx->addr + DECON_VIDOSDxD(win));
386 writel(dma_addr, ctx->addr + DECON_VIDW0xADD0B0(win));
388 val = dma_addr + pitch * state->src.h;
389 writel(val, ctx->addr + DECON_VIDW0xADD1B0(win));
391 if (!(ctx->out_type & IFTYPE_HDMI))
392 val = BIT_VAL(pitch - state->crtc.w * bpp, 27, 14)
393 | BIT_VAL(state->crtc.w * bpp, 13, 0);
395 val = BIT_VAL(pitch - state->crtc.w * bpp, 29, 15)
396 | BIT_VAL(state->crtc.w * bpp, 14, 0);
397 writel(val, ctx->addr + DECON_VIDW0xADD2(win));
399 decon_win_set_pixfmt(ctx, win, fb);
402 decon_set_bits(ctx, DECON_WINCONx(win), WINCONx_ENWIN_F, ~0);
403 set_bit(BIT_REQUEST_UPDATE, &ctx->flags);
406 static void decon_disable_plane(struct exynos_drm_crtc *crtc,
407 struct exynos_drm_plane *plane)
409 struct decon_context *ctx = crtc->ctx;
410 unsigned int win = plane->index;
412 if (test_bit(BIT_SUSPENDED, &ctx->flags))
415 decon_set_bits(ctx, DECON_WINCONx(win), WINCONx_ENWIN_F, 0);
416 set_bit(BIT_REQUEST_UPDATE, &ctx->flags);
419 static void decon_atomic_flush(struct exynos_drm_crtc *crtc)
421 struct decon_context *ctx = crtc->ctx;
425 if (test_bit(BIT_SUSPENDED, &ctx->flags))
428 spin_lock_irqsave(&ctx->vblank_lock, flags);
430 for (i = ctx->first_win; i < WINDOWS_NR; i++)
431 decon_shadow_protect_win(ctx, i, false);
433 if (test_and_clear_bit(BIT_REQUEST_UPDATE, &ctx->flags))
434 decon_set_bits(ctx, DECON_UPDATE, STANDALONE_UPDATE_F, ~0);
436 if (ctx->out_type & IFTYPE_I80)
437 set_bit(BIT_WIN_UPDATED, &ctx->flags);
439 ctx->frame_id = decon_get_frame_count(ctx, true);
441 exynos_crtc_handle_event(crtc);
443 spin_unlock_irqrestore(&ctx->vblank_lock, flags);
446 static void decon_swreset(struct decon_context *ctx)
451 writel(0, ctx->addr + DECON_VIDCON0);
452 for (tries = 2000; tries; --tries) {
453 if (~readl(ctx->addr + DECON_VIDCON0) & VIDCON0_STOP_STATUS)
458 writel(VIDCON0_SWRESET, ctx->addr + DECON_VIDCON0);
459 for (tries = 2000; tries; --tries) {
460 if (~readl(ctx->addr + DECON_VIDCON0) & VIDCON0_SWRESET)
465 WARN(tries == 0, "failed to software reset DECON\n");
467 spin_lock_irqsave(&ctx->vblank_lock, flags);
469 spin_unlock_irqrestore(&ctx->vblank_lock, flags);
471 if (!(ctx->out_type & IFTYPE_HDMI))
474 writel(VIDCON0_CLKVALUP | VIDCON0_VLCKFREE, ctx->addr + DECON_VIDCON0);
475 decon_set_bits(ctx, DECON_CMU,
476 CMU_CLKGAGE_MODE_SFR_F | CMU_CLKGAGE_MODE_MEM_F, ~0);
477 writel(VIDCON1_VCLK_RUN_VDEN_DISABLE, ctx->addr + DECON_VIDCON1);
478 writel(CRCCTRL_CRCEN | CRCCTRL_CRCSTART_F | CRCCTRL_CRCCLKEN,
479 ctx->addr + DECON_CRCCTRL);
482 static void decon_enable(struct exynos_drm_crtc *crtc)
484 struct decon_context *ctx = crtc->ctx;
486 if (!test_and_clear_bit(BIT_SUSPENDED, &ctx->flags))
489 pm_runtime_get_sync(ctx->dev);
491 exynos_drm_pipe_clk_enable(crtc, true);
493 set_bit(BIT_CLKS_ENABLED, &ctx->flags);
497 /* if vblank was enabled status, enable it again. */
498 if (test_and_clear_bit(BIT_IRQS_ENABLED, &ctx->flags))
499 decon_enable_vblank(ctx->crtc);
501 decon_commit(ctx->crtc);
504 static void decon_disable(struct exynos_drm_crtc *crtc)
506 struct decon_context *ctx = crtc->ctx;
509 if (test_bit(BIT_SUSPENDED, &ctx->flags))
513 * We need to make sure that all windows are disabled before we
514 * suspend that connector. Otherwise we might try to scan from
515 * a destroyed buffer later.
517 for (i = ctx->first_win; i < WINDOWS_NR; i++)
518 decon_disable_plane(crtc, &ctx->planes[i]);
522 clear_bit(BIT_CLKS_ENABLED, &ctx->flags);
524 exynos_drm_pipe_clk_enable(crtc, false);
526 pm_runtime_put_sync(ctx->dev);
528 set_bit(BIT_SUSPENDED, &ctx->flags);
531 static void decon_te_irq_handler(struct exynos_drm_crtc *crtc)
533 struct decon_context *ctx = crtc->ctx;
535 if (!test_bit(BIT_CLKS_ENABLED, &ctx->flags) ||
536 (ctx->out_type & I80_HW_TRG))
539 if (test_and_clear_bit(BIT_WIN_UPDATED, &ctx->flags))
540 decon_set_bits(ctx, DECON_TRIGCON, TRIGCON_SWTRIGCMD, ~0);
543 static void decon_clear_channels(struct exynos_drm_crtc *crtc)
545 struct decon_context *ctx = crtc->ctx;
548 DRM_DEBUG_KMS("%s\n", __FILE__);
550 for (i = 0; i < ARRAY_SIZE(decon_clks_name); i++) {
551 ret = clk_prepare_enable(ctx->clks[i]);
556 for (win = 0; win < WINDOWS_NR; win++) {
557 decon_shadow_protect_win(ctx, win, true);
558 decon_set_bits(ctx, DECON_WINCONx(win), WINCONx_ENWIN_F, 0);
559 decon_shadow_protect_win(ctx, win, false);
562 decon_set_bits(ctx, DECON_UPDATE, STANDALONE_UPDATE_F, ~0);
564 /* TODO: wait for possible vsync */
569 clk_disable_unprepare(ctx->clks[i]);
572 static const struct exynos_drm_crtc_ops decon_crtc_ops = {
573 .enable = decon_enable,
574 .disable = decon_disable,
575 .enable_vblank = decon_enable_vblank,
576 .disable_vblank = decon_disable_vblank,
577 .get_vblank_counter = decon_get_vblank_counter,
578 .atomic_begin = decon_atomic_begin,
579 .update_plane = decon_update_plane,
580 .disable_plane = decon_disable_plane,
581 .atomic_flush = decon_atomic_flush,
582 .te_handler = decon_te_irq_handler,
585 static int decon_bind(struct device *dev, struct device *master, void *data)
587 struct decon_context *ctx = dev_get_drvdata(dev);
588 struct drm_device *drm_dev = data;
589 struct exynos_drm_plane *exynos_plane;
590 enum exynos_drm_output_type out_type;
594 ctx->drm_dev = drm_dev;
595 ctx->pipe = drm_dev->mode_config.num_crtc;
596 drm_dev->max_vblank_count = 0xffffffff;
598 for (win = ctx->first_win; win < WINDOWS_NR; win++) {
599 int tmp = (win == ctx->first_win) ? 0 : win;
601 ctx->configs[win].pixel_formats = decon_formats;
602 ctx->configs[win].num_pixel_formats = ARRAY_SIZE(decon_formats);
603 ctx->configs[win].zpos = win;
604 ctx->configs[win].type = decon_win_types[tmp];
606 ret = exynos_plane_init(drm_dev, &ctx->planes[win], win,
612 exynos_plane = &ctx->planes[ctx->first_win];
613 out_type = (ctx->out_type & IFTYPE_HDMI) ? EXYNOS_DISPLAY_TYPE_HDMI
614 : EXYNOS_DISPLAY_TYPE_LCD;
615 ctx->crtc = exynos_drm_crtc_create(drm_dev, &exynos_plane->base,
616 out_type, &decon_crtc_ops, ctx);
617 if (IS_ERR(ctx->crtc))
618 return PTR_ERR(ctx->crtc);
620 decon_clear_channels(ctx->crtc);
622 return drm_iommu_attach_device(drm_dev, dev);
625 static void decon_unbind(struct device *dev, struct device *master, void *data)
627 struct decon_context *ctx = dev_get_drvdata(dev);
629 decon_disable(ctx->crtc);
631 /* detach this sub driver from iommu mapping if supported. */
632 drm_iommu_detach_device(ctx->drm_dev, ctx->dev);
635 static const struct component_ops decon_component_ops = {
637 .unbind = decon_unbind,
640 static void decon_handle_vblank(struct decon_context *ctx)
644 spin_lock(&ctx->vblank_lock);
646 frm = decon_get_frame_count(ctx, true);
648 if (frm != ctx->frame_id) {
649 /* handle only if incremented, take care of wrap-around */
650 if ((s32)(frm - ctx->frame_id) > 0)
651 drm_crtc_handle_vblank(&ctx->crtc->base);
655 spin_unlock(&ctx->vblank_lock);
658 static irqreturn_t decon_irq_handler(int irq, void *dev_id)
660 struct decon_context *ctx = dev_id;
663 if (!test_bit(BIT_CLKS_ENABLED, &ctx->flags))
666 val = readl(ctx->addr + DECON_VIDINTCON1);
667 val &= VIDINTCON1_INTFRMDONEPEND | VIDINTCON1_INTFRMPEND;
670 writel(val, ctx->addr + DECON_VIDINTCON1);
671 if (ctx->out_type & IFTYPE_HDMI) {
672 val = readl(ctx->addr + DECON_VIDOUTCON0);
673 val &= VIDOUT_INTERLACE_EN_F | VIDOUT_INTERLACE_FIELD_F;
675 (VIDOUT_INTERLACE_EN_F | VIDOUT_INTERLACE_FIELD_F))
678 decon_handle_vblank(ctx);
686 static int exynos5433_decon_suspend(struct device *dev)
688 struct decon_context *ctx = dev_get_drvdata(dev);
689 int i = ARRAY_SIZE(decon_clks_name);
692 clk_disable_unprepare(ctx->clks[i]);
697 static int exynos5433_decon_resume(struct device *dev)
699 struct decon_context *ctx = dev_get_drvdata(dev);
702 for (i = 0; i < ARRAY_SIZE(decon_clks_name); i++) {
703 ret = clk_prepare_enable(ctx->clks[i]);
712 clk_disable_unprepare(ctx->clks[i]);
718 static const struct dev_pm_ops exynos5433_decon_pm_ops = {
719 SET_RUNTIME_PM_OPS(exynos5433_decon_suspend, exynos5433_decon_resume,
723 static const struct of_device_id exynos5433_decon_driver_dt_match[] = {
725 .compatible = "samsung,exynos5433-decon",
726 .data = (void *)I80_HW_TRG
729 .compatible = "samsung,exynos5433-decon-tv",
730 .data = (void *)(I80_HW_TRG | IFTYPE_HDMI)
734 MODULE_DEVICE_TABLE(of, exynos5433_decon_driver_dt_match);
736 static int exynos5433_decon_probe(struct platform_device *pdev)
738 struct device *dev = &pdev->dev;
739 struct decon_context *ctx;
740 struct resource *res;
744 ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
748 __set_bit(BIT_SUSPENDED, &ctx->flags);
750 ctx->out_type = (unsigned long)of_device_get_match_data(dev);
751 spin_lock_init(&ctx->vblank_lock);
753 if (ctx->out_type & IFTYPE_HDMI) {
755 } else if (of_get_child_by_name(dev->of_node, "i80-if-timings")) {
756 ctx->out_type |= IFTYPE_I80;
759 if (ctx->out_type & I80_HW_TRG) {
760 ctx->sysreg = syscon_regmap_lookup_by_phandle(dev->of_node,
761 "samsung,disp-sysreg");
762 if (IS_ERR(ctx->sysreg)) {
763 dev_err(dev, "failed to get system register\n");
764 return PTR_ERR(ctx->sysreg);
768 for (i = 0; i < ARRAY_SIZE(decon_clks_name); i++) {
771 clk = devm_clk_get(ctx->dev, decon_clks_name[i]);
778 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
780 dev_err(dev, "cannot find IO resource\n");
784 ctx->addr = devm_ioremap_resource(dev, res);
785 if (IS_ERR(ctx->addr)) {
786 dev_err(dev, "ioremap failed\n");
787 return PTR_ERR(ctx->addr);
790 res = platform_get_resource_byname(pdev, IORESOURCE_IRQ,
791 (ctx->out_type & IFTYPE_I80) ? "lcd_sys" : "vsync");
793 dev_err(dev, "cannot find IRQ resource\n");
797 ret = devm_request_irq(dev, res->start, decon_irq_handler, 0,
800 dev_err(dev, "lcd_sys irq request failed\n");
804 platform_set_drvdata(pdev, ctx);
806 pm_runtime_enable(dev);
808 ret = component_add(dev, &decon_component_ops);
810 goto err_disable_pm_runtime;
814 err_disable_pm_runtime:
815 pm_runtime_disable(dev);
820 static int exynos5433_decon_remove(struct platform_device *pdev)
822 pm_runtime_disable(&pdev->dev);
824 component_del(&pdev->dev, &decon_component_ops);
829 struct platform_driver exynos5433_decon_driver = {
830 .probe = exynos5433_decon_probe,
831 .remove = exynos5433_decon_remove,
833 .name = "exynos5433-decon",
834 .pm = &exynos5433_decon_pm_ops,
835 .of_match_table = exynos5433_decon_driver_dt_match,