From b8182832c5a9d9ce645d53be84e5db07f8aa5302 Mon Sep 17 00:00:00 2001 From: Andrzej Hajda Date: Tue, 20 Oct 2015 18:22:41 +0900 Subject: [PATCH] drm/exynos/decon5433: add support for DECON-TV DECON-TV IP is responsible for generating video stream which is transferred to HDMI IP. It is almost fully compatible with DECON IP. The patch is based on initial work of Hyungwon Hwang. Signed-off-by: Andrzej Hajda Signed-off-by: Inki Dae --- drivers/gpu/drm/exynos/exynos5433_drm_decon.c | 154 +++++++++++------- include/video/exynos5433_decon.h | 29 ++++ 2 files changed, 122 insertions(+), 61 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c index 3c9aa4e48f8d..fbe1b3174f75 100644 --- a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c +++ b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c @@ -13,6 +13,7 @@ #include #include #include +#include #include #include @@ -37,6 +38,12 @@ static const char * const decon_clks_name[] = { "sclk_decon_eclk", }; +enum decon_iftype { + IFTYPE_RGB, + IFTYPE_I80, + IFTYPE_HDMI +}; + enum decon_flag_bits { BIT_CLKS_ENABLED, BIT_IRQS_ENABLED, @@ -53,7 +60,8 @@ struct decon_context { struct clk *clks[ARRAY_SIZE(decon_clks_name)]; int pipe; unsigned long flags; - bool i80_if; + enum decon_iftype out_type; + int first_win; }; static const uint32_t decon_formats[] = { @@ -80,7 +88,7 @@ static int decon_enable_vblank(struct exynos_drm_crtc *crtc) if (test_and_set_bit(BIT_IRQS_ENABLED, &ctx->flags)) { val = VIDINTCON0_INTEN; - if (ctx->i80_if) + if (ctx->out_type == IFTYPE_I80) val |= VIDINTCON0_FRAMEDONE; else val |= VIDINTCON0_INTFRMEN; @@ -104,8 +112,11 @@ static void decon_disable_vblank(struct exynos_drm_crtc *crtc) static void decon_setup_trigger(struct decon_context *ctx) { - u32 val = TRIGCON_TRIGEN_PER_F | TRIGCON_TRIGEN_F | - TRIGCON_TE_AUTO_MASK | TRIGCON_SWTRIGEN; + u32 val = (ctx->out_type != IFTYPE_HDMI) + ? TRIGCON_TRIGEN_PER_F | TRIGCON_TRIGEN_F | + TRIGCON_TE_AUTO_MASK | TRIGCON_SWTRIGEN + : TRIGCON_TRIGEN_PER_F | TRIGCON_TRIGEN_F | + TRIGCON_HWTRIGMASK_I80_RGB | TRIGCON_HWTRIGEN_I80_RGB; writel(val, ctx->addr + DECON_TRIGCON); } @@ -118,13 +129,22 @@ static void decon_commit(struct exynos_drm_crtc *crtc) if (test_bit(BIT_SUSPENDED, &ctx->flags)) return; + 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; + } + + decon_set_bits(ctx, DECON_VIDCON0, VIDCON0_ENVID, 0); + /* enable clock gate */ val = CMU_CLKGAGE_MODE_SFR_F | CMU_CLKGAGE_MODE_MEM_F; writel(val, ctx->addr + DECON_CMU); /* lcd on and use command if */ val = VIDOUT_LCD_ON; - if (ctx->i80_if) + if (ctx->out_type == IFTYPE_I80) val |= VIDOUT_COMMAND_IF; else val |= VIDOUT_RGB_IF; @@ -134,7 +154,7 @@ static void decon_commit(struct exynos_drm_crtc *crtc) VIDTCON2_HOZVAL(m->hdisplay - 1); writel(val, ctx->addr + DECON_VIDTCON2); - if (!ctx->i80_if) { + if (ctx->out_type != IFTYPE_I80) { val = VIDTCON00_VBPD_F( m->crtc_vtotal - m->crtc_vsync_end - 1) | VIDTCON00_VFPD_F( @@ -159,15 +179,9 @@ static void decon_commit(struct exynos_drm_crtc *crtc) decon_setup_trigger(ctx); /* enable output and display signal */ - val = VIDCON0_ENVID | VIDCON0_ENVID_F; - writel(val, ctx->addr + DECON_VIDCON0); + decon_set_bits(ctx, DECON_VIDCON0, VIDCON0_ENVID | VIDCON0_ENVID_F, ~0); } -#define COORDINATE_X(x) (((x) & 0xfff) << 12) -#define COORDINATE_Y(x) ((x) & 0xfff) -#define OFFSIZE(x) (((x) & 0x3fff) << 14) -#define PAGEWIDTH(x) ((x) & 0x3fff) - static void decon_win_set_pixfmt(struct decon_context *ctx, unsigned int win, struct drm_framebuffer *fb) { @@ -238,6 +252,10 @@ static void decon_atomic_begin(struct exynos_drm_crtc *crtc, decon_shadow_protect_win(ctx, plane->zpos, 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) { @@ -271,8 +289,12 @@ static void decon_update_plane(struct exynos_drm_crtc *crtc, val = plane->dma_addr[0] + pitch * plane->crtc_h; writel(val, ctx->addr + DECON_VIDW0xADD1B0(win)); - val = OFFSIZE(pitch - plane->crtc_w * bpp) - | PAGEWIDTH(plane->crtc_w * bpp); + if (ctx->out_type != IFTYPE_HDMI) + val = BIT_VAL(pitch - plane->crtc_w * bpp, 27, 14) + | BIT_VAL(plane->crtc_w * bpp, 13, 0); + else + val = BIT_VAL(pitch - plane->crtc_w * bpp, 29, 15) + | BIT_VAL(plane->crtc_w * bpp, 14, 0); writel(val, ctx->addr + DECON_VIDW0xADD2(win)); decon_win_set_pixfmt(ctx, win, state->fb); @@ -314,7 +336,7 @@ static void decon_atomic_flush(struct exynos_drm_crtc *crtc, decon_shadow_protect_win(ctx, plane->zpos, false); - if (ctx->i80_if) + if (ctx->out_type == IFTYPE_I80) set_bit(BIT_WIN_UPDATED, &ctx->flags); } @@ -339,6 +361,17 @@ static void decon_swreset(struct decon_context *ctx) } WARN(tries == 0, "failed to software reset DECON\n"); + + 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); + decon_setup_trigger(ctx); } static void decon_enable(struct exynos_drm_crtc *crtc) @@ -387,7 +420,7 @@ static void decon_disable(struct exynos_drm_crtc *crtc) * suspend that connector. Otherwise we might try to scan from * a destroyed buffer later. */ - for (i = 0; i < WINDOWS_NR; i++) + for (i = ctx->first_win; i < WINDOWS_NR; i++) decon_disable_plane(crtc, &ctx->planes[i]); decon_swreset(ctx); @@ -461,25 +494,30 @@ static int decon_bind(struct device *dev, struct device *master, void *data) struct drm_device *drm_dev = data; struct exynos_drm_private *priv = drm_dev->dev_private; struct exynos_drm_plane *exynos_plane; + enum exynos_drm_output_type out_type; enum drm_plane_type type; - unsigned int zpos; + unsigned int win; int ret; ctx->drm_dev = drm_dev; ctx->pipe = priv->pipe++; - for (zpos = 0; zpos < WINDOWS_NR; zpos++) { - type = exynos_plane_get_type(zpos, CURSOR_WIN); - ret = exynos_plane_init(drm_dev, &ctx->planes[zpos], + for (win = ctx->first_win; win < WINDOWS_NR; win++) { + int tmp = (win == ctx->first_win) ? 0 : win; + + type = exynos_plane_get_type(tmp, CURSOR_WIN); + ret = exynos_plane_init(drm_dev, &ctx->planes[win], 1 << ctx->pipe, type, decon_formats, - ARRAY_SIZE(decon_formats), zpos); + ARRAY_SIZE(decon_formats), win); if (ret) return ret; } - exynos_plane = &ctx->planes[DEFAULT_WIN]; + exynos_plane = &ctx->planes[ctx->first_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, - ctx->pipe, EXYNOS_DISPLAY_TYPE_LCD, + ctx->pipe, out_type, &decon_crtc_ops, ctx); if (IS_ERR(ctx->crtc)) { ret = PTR_ERR(ctx->crtc); @@ -513,27 +551,7 @@ static const struct component_ops decon_component_ops = { .unbind = decon_unbind, }; -static irqreturn_t decon_vsync_irq_handler(int irq, void *dev_id) -{ - struct decon_context *ctx = dev_id; - u32 val; - - if (!test_bit(BIT_CLKS_ENABLED, &ctx->flags)) - goto out; - - val = readl(ctx->addr + DECON_VIDINTCON1); - if (val & VIDINTCON1_INTFRMPEND) { - drm_crtc_handle_vblank(&ctx->crtc->base); - - /* clear */ - writel(VIDINTCON1_INTFRMPEND, ctx->addr + DECON_VIDINTCON1); - } - -out: - return IRQ_HANDLED; -} - -static irqreturn_t decon_lcd_sys_irq_handler(int irq, void *dev_id) +static irqreturn_t decon_irq_handler(int irq, void *dev_id) { struct decon_context *ctx = dev_id; u32 val; @@ -543,8 +561,10 @@ static irqreturn_t decon_lcd_sys_irq_handler(int irq, void *dev_id) goto out; val = readl(ctx->addr + DECON_VIDINTCON1); - if (val & VIDINTCON1_INTFRMDONEPEND) { - for (win = 0 ; win < WINDOWS_NR ; win++) { + val &= VIDINTCON1_INTFRMDONEPEND | VIDINTCON1_INTFRMPEND; + + if (val) { + for (win = ctx->first_win; win < WINDOWS_NR ; win++) { struct exynos_drm_plane *plane = &ctx->planes[win]; if (!plane->pending_fb) @@ -554,16 +574,29 @@ static irqreturn_t decon_lcd_sys_irq_handler(int irq, void *dev_id) } /* clear */ - writel(VIDINTCON1_INTFRMDONEPEND, - ctx->addr + DECON_VIDINTCON1); + writel(val, ctx->addr + DECON_VIDINTCON1); } out: return IRQ_HANDLED; } +static const struct of_device_id exynos5433_decon_driver_dt_match[] = { + { + .compatible = "samsung,exynos5433-decon", + .data = (void *)IFTYPE_RGB + }, + { + .compatible = "samsung,exynos5433-decon-tv", + .data = (void *)IFTYPE_HDMI + }, + {}, +}; +MODULE_DEVICE_TABLE(of, exynos5433_decon_driver_dt_match); + static int exynos5433_decon_probe(struct platform_device *pdev) { + const struct of_device_id *of_id; struct device *dev = &pdev->dev; struct decon_context *ctx; struct resource *res; @@ -576,8 +609,14 @@ static int exynos5433_decon_probe(struct platform_device *pdev) __set_bit(BIT_SUSPENDED, &ctx->flags); ctx->dev = dev; - if (of_get_child_by_name(dev->of_node, "i80-if-timings")) - ctx->i80_if = true; + + of_id = of_match_device(exynos5433_decon_driver_dt_match, &pdev->dev); + ctx->out_type = (enum decon_iftype)of_id->data; + + if (ctx->out_type == IFTYPE_HDMI) + ctx->first_win = 1; + else if (of_get_child_by_name(dev->of_node, "i80-if-timings")) + ctx->out_type = IFTYPE_I80; for (i = 0; i < ARRAY_SIZE(decon_clks_name); i++) { struct clk *clk; @@ -602,15 +641,14 @@ static int exynos5433_decon_probe(struct platform_device *pdev) } res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, - ctx->i80_if ? "lcd_sys" : "vsync"); + (ctx->out_type == IFTYPE_I80) ? "lcd_sys" : "vsync"); if (!res) { dev_err(dev, "cannot find IRQ resource\n"); return -ENXIO; } - ret = devm_request_irq(dev, res->start, ctx->i80_if ? - decon_lcd_sys_irq_handler : decon_vsync_irq_handler, 0, - "drm_decon", ctx); + ret = devm_request_irq(dev, res->start, decon_irq_handler, 0, + "drm_decon", ctx); if (ret < 0) { dev_err(dev, "lcd_sys irq request failed\n"); return ret; @@ -641,12 +679,6 @@ static int exynos5433_decon_remove(struct platform_device *pdev) return 0; } -static const struct of_device_id exynos5433_decon_driver_dt_match[] = { - { .compatible = "samsung,exynos5433-decon" }, - {}, -}; -MODULE_DEVICE_TABLE(of, exynos5433_decon_driver_dt_match); - struct platform_driver exynos5433_decon_driver = { .probe = exynos5433_decon_probe, .remove = exynos5433_decon_remove, diff --git a/include/video/exynos5433_decon.h b/include/video/exynos5433_decon.h index 3696575b02f2..c1c1ca18abc0 100644 --- a/include/video/exynos5433_decon.h +++ b/include/video/exynos5433_decon.h @@ -82,6 +82,8 @@ /* VIDCON0 */ #define VIDCON0_SWRESET (1 << 28) +#define VIDCON0_CLKVALUP (1 << 14) +#define VIDCON0_VLCKFREE (1 << 5) #define VIDCON0_STOP_STATUS (1 << 2) #define VIDCON0_ENVID (1 << 1) #define VIDCON0_ENVID_F (1 << 0) @@ -137,6 +139,13 @@ /* DECON_UPDATE */ #define STANDALONE_UPDATE_F (1 << 0) +/* DECON_VIDCON1 */ +#define VIDCON1_VCLK_MASK (0x3 << 9) +#define VIDCON1_VCLK_RUN_VDEN_DISABLE (0x3 << 9) +#define VIDCON1_VCLK_HOLD (0x0 << 9) +#define VIDCON1_VCLK_RUN (0x1 << 9) + + /* DECON_VIDTCON00 */ #define VIDTCON00_VBPD_F(x) (((x) & 0xfff) << 16) #define VIDTCON00_VFPD_F(x) ((x) & 0xfff) @@ -159,7 +168,27 @@ #define TRIGCON_TRIGEN_PER_F (1 << 31) #define TRIGCON_TRIGEN_F (1 << 30) #define TRIGCON_TE_AUTO_MASK (1 << 29) +#define TRIGCON_WB_SWTRIGCMD (1 << 28) +#define TRIGCON_SWTRIGCMD_W4BUF (1 << 26) +#define TRIGCON_TRIGMODE_W4BUF (1 << 25) +#define TRIGCON_SWTRIGCMD_W3BUF (1 << 21) +#define TRIGCON_TRIGMODE_W3BUF (1 << 20) +#define TRIGCON_SWTRIGCMD_W2BUF (1 << 16) +#define TRIGCON_TRIGMODE_W2BUF (1 << 15) +#define TRIGCON_SWTRIGCMD_W1BUF (1 << 11) +#define TRIGCON_TRIGMODE_W1BUF (1 << 10) +#define TRIGCON_SWTRIGCMD_W0BUF (1 << 6) +#define TRIGCON_TRIGMODE_W0BUF (1 << 5) +#define TRIGCON_HWTRIGMASK_I80_RGB (1 << 4) +#define TRIGCON_HWTRIGEN_I80_RGB (1 << 3) +#define TRIGCON_HWTRIG_INV_I80_RGB (1 << 2) #define TRIGCON_SWTRIGCMD (1 << 1) #define TRIGCON_SWTRIGEN (1 << 0) +/* DECON_CRCCTRL */ +#define CRCCTRL_CRCCLKEN (0x1 << 2) +#define CRCCTRL_CRCSTART_F (0x1 << 1) +#define CRCCTRL_CRCEN (0x1 << 0) +#define CRCCTRL_MASK (0x7) + #endif /* EXYNOS_REGS_DECON_H */