Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Joonyoung Shim | 1914 | 44.50% | 4 | 5.33% |
Andrzej Hajda | 1375 | 31.97% | 25 | 33.33% |
Christoph Manszewski | 388 | 9.02% | 2 | 2.67% |
Marek Szyprowski | 224 | 5.21% | 11 | 14.67% |
Gustavo Padovan | 181 | 4.21% | 6 | 8.00% |
Inki Dae | 115 | 2.67% | 8 | 10.67% |
Hyungwon Hwang | 38 | 0.88% | 2 | 2.67% |
Ville Syrjälä | 15 | 0.35% | 2 | 2.67% |
Paul Cercueil | 9 | 0.21% | 1 | 1.33% |
Tobias Jakobi | 7 | 0.16% | 2 | 2.67% |
Sean Paul | 6 | 0.14% | 1 | 1.33% |
Daniel Vetter | 6 | 0.14% | 2 | 2.67% |
Sam Ravnborg | 4 | 0.09% | 1 | 1.33% |
YoungJun Cho | 4 | 0.09% | 1 | 1.33% |
Arnd Bergmann | 3 | 0.07% | 1 | 1.33% |
Krzysztof Kozlowski | 3 | 0.07% | 1 | 1.33% |
caihuoqing | 3 | 0.07% | 1 | 1.33% |
Thomas Gleixner | 2 | 0.05% | 1 | 1.33% |
Tian Tao | 2 | 0.05% | 1 | 1.33% |
Dan Carpenter | 1 | 0.02% | 1 | 1.33% |
Bhumika Goyal | 1 | 0.02% | 1 | 1.33% |
Total | 4301 | 75 |
// SPDX-License-Identifier: GPL-2.0-only /* drivers/gpu/drm/exynos5433_drm_decon.c * * Copyright (C) 2015 Samsung Electronics Co.Ltd * Authors: * Joonyoung Shim <jy0922.shim@samsung.com> * Hyungwon Hwang <human.hwang@samsung.com> */ #include <linux/clk.h> #include <linux/component.h> #include <linux/iopoll.h> #include <linux/irq.h> #include <linux/mfd/syscon.h> #include <linux/of_device.h> #include <linux/platform_device.h> #include <linux/pm_runtime.h> #include <linux/regmap.h> #include <drm/drm_blend.h> #include <drm/drm_fourcc.h> #include <drm/drm_framebuffer.h> #include <drm/drm_vblank.h> #include "exynos_drm_crtc.h" #include "exynos_drm_drv.h" #include "exynos_drm_fb.h" #include "exynos_drm_plane.h" #include "regs-decon5433.h" #define DSD_CFG_MUX 0x1004 #define DSD_CFG_MUX_TE_UNMASK_GLOBAL BIT(13) #define WINDOWS_NR 5 #define PRIMARY_WIN 2 #define CURSON_WIN 4 #define MIN_FB_WIDTH_FOR_16WORD_BURST 128 #define I80_HW_TRG (1 << 0) #define IFTYPE_HDMI (1 << 1) static const char * const decon_clks_name[] = { "pclk", "aclk_decon", "aclk_smmu_decon0x", "aclk_xiu_decon0x", "pclk_smmu_decon0x", "aclk_smmu_decon1x", "aclk_xiu_decon1x", "pclk_smmu_decon1x", "sclk_decon_vclk", "sclk_decon_eclk", }; struct decon_context { struct device *dev; struct drm_device *drm_dev; void *dma_priv; struct exynos_drm_crtc *crtc; struct exynos_drm_plane planes[WINDOWS_NR]; struct exynos_drm_plane_config configs[WINDOWS_NR]; void __iomem *addr; struct regmap *sysreg; struct clk *clks[ARRAY_SIZE(decon_clks_name)]; unsigned int irq; unsigned int irq_vsync; unsigned int irq_lcd_sys; unsigned int te_irq; unsigned long out_type; int first_win; spinlock_t vblank_lock; u32 frame_id; }; static const uint32_t decon_formats[] = { DRM_FORMAT_XRGB1555, DRM_FORMAT_RGB565, DRM_FORMAT_XRGB8888, DRM_FORMAT_ARGB8888, }; static const enum drm_plane_type decon_win_types[WINDOWS_NR] = { [PRIMARY_WIN] = DRM_PLANE_TYPE_PRIMARY, [CURSON_WIN] = DRM_PLANE_TYPE_CURSOR, }; static const unsigned int capabilities[WINDOWS_NR] = { 0, EXYNOS_DRM_PLANE_CAP_WIN_BLEND | EXYNOS_DRM_PLANE_CAP_PIX_BLEND, EXYNOS_DRM_PLANE_CAP_WIN_BLEND | EXYNOS_DRM_PLANE_CAP_PIX_BLEND, EXYNOS_DRM_PLANE_CAP_WIN_BLEND | EXYNOS_DRM_PLANE_CAP_PIX_BLEND, EXYNOS_DRM_PLANE_CAP_WIN_BLEND | EXYNOS_DRM_PLANE_CAP_PIX_BLEND, }; static inline void decon_set_bits(struct decon_context *ctx, u32 reg, u32 mask, u32 val) { val = (val & mask) | (readl(ctx->addr + reg) & ~mask); writel(val, ctx->addr + reg); } static int decon_enable_vblank(struct exynos_drm_crtc *crtc) { struct decon_context *ctx = crtc->ctx; u32 val; val = VIDINTCON0_INTEN; if (crtc->i80_mode) val |= VIDINTCON0_FRAMEDONE; else val |= VIDINTCON0_INTFRMEN | VIDINTCON0_FRAMESEL_FP; writel(val, ctx->addr + DECON_VIDINTCON0); enable_irq(ctx->irq); if (!(ctx->out_type & I80_HW_TRG)) enable_irq(ctx->te_irq); return 0; } static void decon_disable_vblank(struct exynos_drm_crtc *crtc) { struct decon_context *ctx = crtc->ctx; if (!(ctx->out_type & I80_HW_TRG)) disable_irq_nosync(ctx->te_irq); disable_irq_nosync(ctx->irq); writel(0, ctx->addr + DECON_VIDINTCON0); } /* return number of starts/ends of frame transmissions since reset */ static u32 decon_get_frame_count(struct decon_context *ctx, bool end) { u32 frm, pfrm, status, cnt = 2; /* To get consistent result repeat read until frame id is stable. * Usually the loop will be executed once, in rare cases when the loop * is executed at frame change time 2nd pass will be needed. */ frm = readl(ctx->addr + DECON_CRFMID); do { status = readl(ctx->addr + DECON_VIDCON1); pfrm = frm; frm = readl(ctx->addr + DECON_CRFMID); } while (frm != pfrm && --cnt); /* CRFMID is incremented on BPORCH in case of I80 and on VSYNC in case * of RGB, it should be taken into account. */ if (!frm) return 0; switch (status & (VIDCON1_VSTATUS_MASK | VIDCON1_I80_ACTIVE)) { case VIDCON1_VSTATUS_VS: if (!(ctx->crtc->i80_mode)) --frm; break; case VIDCON1_VSTATUS_BP: --frm; break; case VIDCON1_I80_ACTIVE: case VIDCON1_VSTATUS_AC: if (end) --frm; break; default: break; } return frm; } static void decon_setup_trigger(struct decon_context *ctx) { if (!ctx->crtc->i80_mode && !(ctx->out_type & I80_HW_TRG)) return; if (!(ctx->out_type & I80_HW_TRG)) { writel(TRIGCON_TRIGEN_PER_F | TRIGCON_TRIGEN_F | TRIGCON_TE_AUTO_MASK | TRIGCON_SWTRIGEN, ctx->addr + DECON_TRIGCON); return; } writel(TRIGCON_TRIGEN_PER_F | TRIGCON_TRIGEN_F | TRIGCON_HWTRIGMASK | TRIGCON_HWTRIGEN, ctx->addr + DECON_TRIGCON); if (regmap_update_bits(ctx->sysreg, DSD_CFG_MUX, DSD_CFG_MUX_TE_UNMASK_GLOBAL, ~0)) DRM_DEV_ERROR(ctx->dev, "Cannot update sysreg.\n"); } static void decon_commit(struct exynos_drm_crtc *crtc) { struct decon_context *ctx = crtc->ctx; struct drm_display_mode *m = &crtc->base.mode; bool interlaced = false; u32 val; if (ctx->out_type & IFTYPE_HDMI) { m->crtc_hsync_start = m->crtc_hdisplay + 10; m->crtc_hsync_end = m->crtc_htotal - 92; m->crtc_vsync_start = m->crtc_vdisplay + 1; m->crtc_vsync_end = m->crtc_vsync_start + 1; if (m->flags & DRM_MODE_FLAG_INTERLACE) interlaced = true; } decon_setup_trigger(ctx); /* lcd on and use command if */ val = VIDOUT_LCD_ON; if (interlaced) val |= VIDOUT_INTERLACE_EN_F; if (crtc->i80_mode) { val |= VIDOUT_COMMAND_IF; } else { val |= VIDOUT_RGB_IF; } writel(val, ctx->addr + DECON_VIDOUTCON0); if (interlaced) val = VIDTCON2_LINEVAL(m->vdisplay / 2 - 1) | VIDTCON2_HOZVAL(m->hdisplay - 1); else val = VIDTCON2_LINEVAL(m->vdisplay - 1) | VIDTCON2_HOZVAL(m->hdisplay - 1); writel(val, ctx->addr + DECON_VIDTCON2); if (!crtc->i80_mode) { int vbp = m->crtc_vtotal - m->crtc_vsync_end; int vfp = m->crtc_vsync_start - m->crtc_vdisplay; if (interlaced) vbp = vbp / 2 - 1; val = VIDTCON00_VBPD_F(vbp - 1) | VIDTCON00_VFPD_F(vfp - 1); writel(val, ctx->addr + DECON_VIDTCON00); val = VIDTCON01_VSPW_F( m->crtc_vsync_end - m->crtc_vsync_start - 1); writel(val, ctx->addr + DECON_VIDTCON01); val = VIDTCON10_HBPD_F( m->crtc_htotal - m->crtc_hsync_end - 1) | VIDTCON10_HFPD_F( m->crtc_hsync_start - m->crtc_hdisplay - 1); writel(val, ctx->addr + DECON_VIDTCON10); val = VIDTCON11_HSPW_F( m->crtc_hsync_end - m->crtc_hsync_start - 1); writel(val, ctx->addr + DECON_VIDTCON11); } /* enable output and display signal */ decon_set_bits(ctx, DECON_VIDCON0, VIDCON0_ENVID | VIDCON0_ENVID_F, ~0); decon_set_bits(ctx, DECON_UPDATE, STANDALONE_UPDATE_F, ~0); } static void decon_win_set_bldeq(struct decon_context *ctx, unsigned int win, unsigned int alpha, unsigned int pixel_alpha) { u32 mask = BLENDERQ_A_FUNC_F(0xf) | BLENDERQ_B_FUNC_F(0xf); u32 val = 0; switch (pixel_alpha) { case DRM_MODE_BLEND_PIXEL_NONE: case DRM_MODE_BLEND_COVERAGE: val |= BLENDERQ_A_FUNC_F(BLENDERQ_ALPHA_A); val |= BLENDERQ_B_FUNC_F(BLENDERQ_ONE_MINUS_ALPHA_A); break; case DRM_MODE_BLEND_PREMULTI: default: if (alpha != DRM_BLEND_ALPHA_OPAQUE) { val |= BLENDERQ_A_FUNC_F(BLENDERQ_ALPHA0); val |= BLENDERQ_B_FUNC_F(BLENDERQ_ONE_MINUS_ALPHA_A); } else { val |= BLENDERQ_A_FUNC_F(BLENDERQ_ONE); val |= BLENDERQ_B_FUNC_F(BLENDERQ_ONE_MINUS_ALPHA_A); } break; } decon_set_bits(ctx, DECON_BLENDERQx(win), mask, val); } static void decon_win_set_bldmod(struct decon_context *ctx, unsigned int win, unsigned int alpha, unsigned int pixel_alpha) { u32 win_alpha = alpha >> 8; u32 val = 0; switch (pixel_alpha) { case DRM_MODE_BLEND_PIXEL_NONE: break; case DRM_MODE_BLEND_COVERAGE: case DRM_MODE_BLEND_PREMULTI: default: val |= WINCONx_ALPHA_SEL_F; val |= WINCONx_BLD_PIX_F; val |= WINCONx_ALPHA_MUL_F; break; } decon_set_bits(ctx, DECON_WINCONx(win), WINCONx_BLEND_MODE_MASK, val); if (alpha != DRM_BLEND_ALPHA_OPAQUE) { val = VIDOSD_Wx_ALPHA_R_F(win_alpha) | VIDOSD_Wx_ALPHA_G_F(win_alpha) | VIDOSD_Wx_ALPHA_B_F(win_alpha); decon_set_bits(ctx, DECON_VIDOSDxC(win), VIDOSDxC_ALPHA0_RGB_MASK, val); decon_set_bits(ctx, DECON_BLENDCON, BLEND_NEW, BLEND_NEW); } } static void decon_win_set_pixfmt(struct decon_context *ctx, unsigned int win, struct drm_framebuffer *fb) { struct exynos_drm_plane plane = ctx->planes[win]; struct exynos_drm_plane_state *state = to_exynos_plane_state(plane.base.state); unsigned int alpha = state->base.alpha; unsigned int pixel_alpha; unsigned long val; if (fb->format->has_alpha) pixel_alpha = state->base.pixel_blend_mode; else pixel_alpha = DRM_MODE_BLEND_PIXEL_NONE; val = readl(ctx->addr + DECON_WINCONx(win)); val &= WINCONx_ENWIN_F; switch (fb->format->format) { case DRM_FORMAT_XRGB1555: val |= WINCONx_BPPMODE_16BPP_I1555; val |= WINCONx_HAWSWP_F; val |= WINCONx_BURSTLEN_16WORD; break; case DRM_FORMAT_RGB565: val |= WINCONx_BPPMODE_16BPP_565; val |= WINCONx_HAWSWP_F; val |= WINCONx_BURSTLEN_16WORD; break; case DRM_FORMAT_XRGB8888: val |= WINCONx_BPPMODE_24BPP_888; val |= WINCONx_WSWP_F; val |= WINCONx_BURSTLEN_16WORD; break; case DRM_FORMAT_ARGB8888: default: val |= WINCONx_BPPMODE_32BPP_A8888; val |= WINCONx_WSWP_F; val |= WINCONx_BURSTLEN_16WORD; break; } DRM_DEV_DEBUG_KMS(ctx->dev, "cpp = %u\n", fb->format->cpp[0]); /* * In case of exynos, setting dma-burst to 16Word causes permanent * tearing for very small buffers, e.g. cursor buffer. Burst Mode * switching which is based on plane size is not recommended as * plane size varies a lot towards the end of the screen and rapid * movement causes unstable DMA which results into iommu crash/tear. */ if (fb->width < MIN_FB_WIDTH_FOR_16WORD_BURST) { val &= ~WINCONx_BURSTLEN_MASK; val |= WINCONx_BURSTLEN_8WORD; } decon_set_bits(ctx, DECON_WINCONx(win), ~WINCONx_BLEND_MODE_MASK, val); if (win > 0) { decon_win_set_bldmod(ctx, win, alpha, pixel_alpha); decon_win_set_bldeq(ctx, win, alpha, pixel_alpha); } } static void decon_shadow_protect(struct decon_context *ctx, bool protect) { decon_set_bits(ctx, DECON_SHADOWCON, SHADOWCON_PROTECT_MASK, protect ? ~0 : 0); } static void decon_atomic_begin(struct exynos_drm_crtc *crtc) { struct decon_context *ctx = crtc->ctx; decon_shadow_protect(ctx, true); } #define BIT_VAL(x, e, s) (((x) & ((1 << ((e) - (s) + 1)) - 1)) << (s)) #define COORDINATE_X(x) BIT_VAL((x), 23, 12) #define COORDINATE_Y(x) BIT_VAL((x), 11, 0) static void decon_update_plane(struct exynos_drm_crtc *crtc, struct exynos_drm_plane *plane) { struct exynos_drm_plane_state *state = to_exynos_plane_state(plane->base.state); struct decon_context *ctx = crtc->ctx; struct drm_framebuffer *fb = state->base.fb; unsigned int win = plane->index; unsigned int cpp = fb->format->cpp[0]; unsigned int pitch = fb->pitches[0]; dma_addr_t dma_addr = exynos_drm_fb_dma_addr(fb, 0); u32 val; if (crtc->base.mode.flags & DRM_MODE_FLAG_INTERLACE) { val = COORDINATE_X(state->crtc.x) | COORDINATE_Y(state->crtc.y / 2); writel(val, ctx->addr + DECON_VIDOSDxA(win)); val = COORDINATE_X(state->crtc.x + state->crtc.w - 1) | COORDINATE_Y((state->crtc.y + state->crtc.h) / 2 - 1); writel(val, ctx->addr + DECON_VIDOSDxB(win)); } else { val = COORDINATE_X(state->crtc.x) | COORDINATE_Y(state->crtc.y); writel(val, ctx->addr + DECON_VIDOSDxA(win)); val = COORDINATE_X(state->crtc.x + state->crtc.w - 1) | COORDINATE_Y(state->crtc.y + state->crtc.h - 1); writel(val, ctx->addr + DECON_VIDOSDxB(win)); } val = VIDOSD_Wx_ALPHA_R_F(0xff) | VIDOSD_Wx_ALPHA_G_F(0xff) | VIDOSD_Wx_ALPHA_B_F(0xff); writel(val, ctx->addr + DECON_VIDOSDxC(win)); val = VIDOSD_Wx_ALPHA_R_F(0x0) | VIDOSD_Wx_ALPHA_G_F(0x0) | VIDOSD_Wx_ALPHA_B_F(0x0); writel(val, ctx->addr + DECON_VIDOSDxD(win)); writel(dma_addr, ctx->addr + DECON_VIDW0xADD0B0(win)); val = dma_addr + pitch * state->src.h; writel(val, ctx->addr + DECON_VIDW0xADD1B0(win)); if (!(ctx->out_type & IFTYPE_HDMI)) val = BIT_VAL(pitch - state->crtc.w * cpp, 27, 14) | BIT_VAL(state->crtc.w * cpp, 13, 0); else val = BIT_VAL(pitch - state->crtc.w * cpp, 29, 15) | BIT_VAL(state->crtc.w * cpp, 14, 0); writel(val, ctx->addr + DECON_VIDW0xADD2(win)); decon_win_set_pixfmt(ctx, win, fb); /* window enable */ decon_set_bits(ctx, DECON_WINCONx(win), WINCONx_ENWIN_F, ~0); } static void decon_disable_plane(struct exynos_drm_crtc *crtc, struct exynos_drm_plane *plane) { struct decon_context *ctx = crtc->ctx; unsigned int win = plane->index; decon_set_bits(ctx, DECON_WINCONx(win), WINCONx_ENWIN_F, 0); } static void decon_atomic_flush(struct exynos_drm_crtc *crtc) { struct decon_context *ctx = crtc->ctx; unsigned long flags; spin_lock_irqsave(&ctx->vblank_lock, flags); decon_shadow_protect(ctx, false); decon_set_bits(ctx, DECON_UPDATE, STANDALONE_UPDATE_F, ~0); ctx->frame_id = decon_get_frame_count(ctx, true); exynos_crtc_handle_event(crtc); spin_unlock_irqrestore(&ctx->vblank_lock, flags); } static void decon_swreset(struct decon_context *ctx) { unsigned long flags; u32 val; int ret; writel(0, ctx->addr + DECON_VIDCON0); readl_poll_timeout(ctx->addr + DECON_VIDCON0, val, ~val & VIDCON0_STOP_STATUS, 12, 20000); writel(VIDCON0_SWRESET, ctx->addr + DECON_VIDCON0); ret = readl_poll_timeout(ctx->addr + DECON_VIDCON0, val, ~val & VIDCON0_SWRESET, 12, 20000); WARN(ret < 0, "failed to software reset DECON\n"); spin_lock_irqsave(&ctx->vblank_lock, flags); ctx->frame_id = 0; spin_unlock_irqrestore(&ctx->vblank_lock, flags); if (!(ctx->out_type & IFTYPE_HDMI)) return; writel(VIDCON0_CLKVALUP | VIDCON0_VLCKFREE, ctx->addr + DECON_VIDCON0); decon_set_bits(ctx, DECON_CMU, CMU_CLKGAGE_MODE_SFR_F | CMU_CLKGAGE_MODE_MEM_F, ~0); writel(VIDCON1_VCLK_RUN_VDEN_DISABLE, ctx->addr + DECON_VIDCON1); writel(CRCCTRL_CRCEN | CRCCTRL_CRCSTART_F | CRCCTRL_CRCCLKEN, ctx->addr + DECON_CRCCTRL); } static void decon_atomic_enable(struct exynos_drm_crtc *crtc) { struct decon_context *ctx = crtc->ctx; int ret; ret = pm_runtime_resume_and_get(ctx->dev); if (ret < 0) { DRM_DEV_ERROR(ctx->dev, "failed to enable DECON device.\n"); return; } exynos_drm_pipe_clk_enable(crtc, true); decon_swreset(ctx); decon_commit(ctx->crtc); } static void decon_atomic_disable(struct exynos_drm_crtc *crtc) { struct decon_context *ctx = crtc->ctx; int i; if (!(ctx->out_type & I80_HW_TRG)) synchronize_irq(ctx->te_irq); synchronize_irq(ctx->irq); /* * We need to make sure that all windows are disabled before we * suspend that connector. Otherwise we might try to scan from * a destroyed buffer later. */ for (i = ctx->first_win; i < WINDOWS_NR; i++) decon_disable_plane(crtc, &ctx->planes[i]); decon_swreset(ctx); exynos_drm_pipe_clk_enable(crtc, false); pm_runtime_put_sync(ctx->dev); } static irqreturn_t decon_te_irq_handler(int irq, void *dev_id) { struct decon_context *ctx = dev_id; decon_set_bits(ctx, DECON_TRIGCON, TRIGCON_SWTRIGCMD, ~0); return IRQ_HANDLED; } static void decon_clear_channels(struct exynos_drm_crtc *crtc) { struct decon_context *ctx = crtc->ctx; int win, i, ret; for (i = 0; i < ARRAY_SIZE(decon_clks_name); i++) { ret = clk_prepare_enable(ctx->clks[i]); if (ret < 0) goto err; } decon_shadow_protect(ctx, true); for (win = 0; win < WINDOWS_NR; win++) decon_set_bits(ctx, DECON_WINCONx(win), WINCONx_ENWIN_F, 0); decon_shadow_protect(ctx, false); decon_set_bits(ctx, DECON_UPDATE, STANDALONE_UPDATE_F, ~0); /* TODO: wait for possible vsync */ msleep(50); err: while (--i >= 0) clk_disable_unprepare(ctx->clks[i]); } static enum drm_mode_status decon_mode_valid(struct exynos_drm_crtc *crtc, const struct drm_display_mode *mode) { struct decon_context *ctx = crtc->ctx; ctx->irq = crtc->i80_mode ? ctx->irq_lcd_sys : ctx->irq_vsync; if (ctx->irq) return MODE_OK; dev_info(ctx->dev, "Sink requires %s mode, but appropriate interrupt is not provided.\n", crtc->i80_mode ? "command" : "video"); return MODE_BAD; } static const struct exynos_drm_crtc_ops decon_crtc_ops = { .atomic_enable = decon_atomic_enable, .atomic_disable = decon_atomic_disable, .enable_vblank = decon_enable_vblank, .disable_vblank = decon_disable_vblank, .atomic_begin = decon_atomic_begin, .update_plane = decon_update_plane, .disable_plane = decon_disable_plane, .mode_valid = decon_mode_valid, .atomic_flush = decon_atomic_flush, }; static int decon_bind(struct device *dev, struct device *master, void *data) { struct decon_context *ctx = dev_get_drvdata(dev); struct drm_device *drm_dev = data; struct exynos_drm_plane *exynos_plane; enum exynos_drm_output_type out_type; unsigned int win; int ret; ctx->drm_dev = drm_dev; for (win = ctx->first_win; win < WINDOWS_NR; win++) { ctx->configs[win].pixel_formats = decon_formats; ctx->configs[win].num_pixel_formats = ARRAY_SIZE(decon_formats); ctx->configs[win].zpos = win - ctx->first_win; ctx->configs[win].type = decon_win_types[win]; ctx->configs[win].capabilities = capabilities[win]; ret = exynos_plane_init(drm_dev, &ctx->planes[win], win, &ctx->configs[win]); if (ret) return ret; } exynos_plane = &ctx->planes[PRIMARY_WIN]; out_type = (ctx->out_type & IFTYPE_HDMI) ? EXYNOS_DISPLAY_TYPE_HDMI : EXYNOS_DISPLAY_TYPE_LCD; ctx->crtc = exynos_drm_crtc_create(drm_dev, &exynos_plane->base, out_type, &decon_crtc_ops, ctx); if (IS_ERR(ctx->crtc)) return PTR_ERR(ctx->crtc); decon_clear_channels(ctx->crtc); return exynos_drm_register_dma(drm_dev, dev, &ctx->dma_priv); } static void decon_unbind(struct device *dev, struct device *master, void *data) { struct decon_context *ctx = dev_get_drvdata(dev); decon_atomic_disable(ctx->crtc); /* detach this sub driver from iommu mapping if supported. */ exynos_drm_unregister_dma(ctx->drm_dev, ctx->dev, &ctx->dma_priv); } static const struct component_ops decon_component_ops = { .bind = decon_bind, .unbind = decon_unbind, }; static void decon_handle_vblank(struct decon_context *ctx) { u32 frm; spin_lock(&ctx->vblank_lock); frm = decon_get_frame_count(ctx, true); if (frm != ctx->frame_id) { /* handle only if incremented, take care of wrap-around */ if ((s32)(frm - ctx->frame_id) > 0) drm_crtc_handle_vblank(&ctx->crtc->base); ctx->frame_id = frm; } spin_unlock(&ctx->vblank_lock); } static irqreturn_t decon_irq_handler(int irq, void *dev_id) { struct decon_context *ctx = dev_id; u32 val; val = readl(ctx->addr + DECON_VIDINTCON1); val &= VIDINTCON1_INTFRMDONEPEND | VIDINTCON1_INTFRMPEND; if (val) { writel(val, ctx->addr + DECON_VIDINTCON1); if (ctx->out_type & IFTYPE_HDMI) { val = readl(ctx->addr + DECON_VIDOUTCON0); val &= VIDOUT_INTERLACE_EN_F | VIDOUT_INTERLACE_FIELD_F; if (val == (VIDOUT_INTERLACE_EN_F | VIDOUT_INTERLACE_FIELD_F)) return IRQ_HANDLED; } decon_handle_vblank(ctx); } return IRQ_HANDLED; } static int exynos5433_decon_suspend(struct device *dev) { struct decon_context *ctx = dev_get_drvdata(dev); int i = ARRAY_SIZE(decon_clks_name); while (--i >= 0) clk_disable_unprepare(ctx->clks[i]); return 0; } static int exynos5433_decon_resume(struct device *dev) { struct decon_context *ctx = dev_get_drvdata(dev); int i, ret; for (i = 0; i < ARRAY_SIZE(decon_clks_name); i++) { ret = clk_prepare_enable(ctx->clks[i]); if (ret < 0) goto err; } return 0; err: while (--i >= 0) clk_disable_unprepare(ctx->clks[i]); return ret; } static DEFINE_RUNTIME_DEV_PM_OPS(exynos5433_decon_pm_ops, exynos5433_decon_suspend, exynos5433_decon_resume, NULL); static const struct of_device_id exynos5433_decon_driver_dt_match[] = { { .compatible = "samsung,exynos5433-decon", .data = (void *)I80_HW_TRG }, { .compatible = "samsung,exynos5433-decon-tv", .data = (void *)(I80_HW_TRG | IFTYPE_HDMI) }, {}, }; MODULE_DEVICE_TABLE(of, exynos5433_decon_driver_dt_match); static int decon_conf_irq(struct decon_context *ctx, const char *name, irq_handler_t handler, unsigned long int flags) { struct platform_device *pdev = to_platform_device(ctx->dev); int ret, irq = platform_get_irq_byname(pdev, name); if (irq < 0) { switch (irq) { case -EPROBE_DEFER: return irq; case -ENODATA: case -ENXIO: return 0; default: dev_err(ctx->dev, "IRQ %s get failed, %d\n", name, irq); return irq; } } ret = devm_request_irq(ctx->dev, irq, handler, flags | IRQF_NO_AUTOEN, "drm_decon", ctx); if (ret < 0) { dev_err(ctx->dev, "IRQ %s request failed\n", name); return ret; } return irq; } static int exynos5433_decon_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct decon_context *ctx; int ret; int i; ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); if (!ctx) return -ENOMEM; ctx->dev = dev; ctx->out_type = (unsigned long)of_device_get_match_data(dev); spin_lock_init(&ctx->vblank_lock); if (ctx->out_type & IFTYPE_HDMI) ctx->first_win = 1; for (i = 0; i < ARRAY_SIZE(decon_clks_name); i++) { struct clk *clk; clk = devm_clk_get(ctx->dev, decon_clks_name[i]); if (IS_ERR(clk)) return PTR_ERR(clk); ctx->clks[i] = clk; } ctx->addr = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(ctx->addr)) return PTR_ERR(ctx->addr); ret = decon_conf_irq(ctx, "vsync", decon_irq_handler, 0); if (ret < 0) return ret; ctx->irq_vsync = ret; ret = decon_conf_irq(ctx, "lcd_sys", decon_irq_handler, 0); if (ret < 0) return ret; ctx->irq_lcd_sys = ret; ret = decon_conf_irq(ctx, "te", decon_te_irq_handler, IRQF_TRIGGER_RISING); if (ret < 0) return ret; if (ret) { ctx->te_irq = ret; ctx->out_type &= ~I80_HW_TRG; } if (ctx->out_type & I80_HW_TRG) { ctx->sysreg = syscon_regmap_lookup_by_phandle(dev->of_node, "samsung,disp-sysreg"); if (IS_ERR(ctx->sysreg)) { dev_err(dev, "failed to get system register\n"); return PTR_ERR(ctx->sysreg); } } platform_set_drvdata(pdev, ctx); pm_runtime_enable(dev); ret = component_add(dev, &decon_component_ops); if (ret) goto err_disable_pm_runtime; return 0; err_disable_pm_runtime: pm_runtime_disable(dev); return ret; } static int exynos5433_decon_remove(struct platform_device *pdev) { pm_runtime_disable(&pdev->dev); component_del(&pdev->dev, &decon_component_ops); return 0; } struct platform_driver exynos5433_decon_driver = { .probe = exynos5433_decon_probe, .remove = exynos5433_decon_remove, .driver = { .name = "exynos5433-decon", .pm = pm_ptr(&exynos5433_decon_pm_ops), .of_match_table = exynos5433_decon_driver_dt_match, }, };
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