From: Joonyoung Shim jy0922.shim@samsung.com
DECON(Display and Enhancement Controller) is new IP replacing FIMD in Exynos5433. This patch adds Exynos5433 decon driver.
Signed-off-by: Joonyoung Shim jy0922.shim@samsung.com Signed-off-by: Hyungwon Hwang human.hwang@samsung.com --- Changes before: - Refer https://patchwork.kernel.org/patch/6192071/ Changes for v6: - Add support for atomic modeset .../devicetree/bindings/video/exynos5433-decon.txt | 65 ++ drivers/gpu/drm/exynos/Kconfig | 6 + drivers/gpu/drm/exynos/Makefile | 1 + drivers/gpu/drm/exynos/exynos5433_drm_decon.c | 694 +++++++++++++++++++++ drivers/gpu/drm/exynos/exynos_drm_drv.h | 1 + include/video/exynos5433_decon.h | 165 +++++ 6 files changed, 932 insertions(+) create mode 100644 Documentation/devicetree/bindings/video/exynos5433-decon.txt create mode 100644 drivers/gpu/drm/exynos/exynos5433_drm_decon.c create mode 100644 include/video/exynos5433_decon.h
diff --git a/Documentation/devicetree/bindings/video/exynos5433-decon.txt b/Documentation/devicetree/bindings/video/exynos5433-decon.txt new file mode 100644 index 0000000..377afbf --- /dev/null +++ b/Documentation/devicetree/bindings/video/exynos5433-decon.txt @@ -0,0 +1,65 @@ +Device-Tree bindings for Samsung Exynos SoC display controller (DECON) + +DECON (Display and Enhancement Controller) is the Display Controller for the +Exynos series of SoCs which transfers the image data from a video memory +buffer to an external LCD interface. + +Required properties: +- compatible: value should be "samsung,exynos5433-decon"; +- reg: physical base address and length of the DECON registers set. +- interrupts: should contain a list of all DECON IP block interrupts in the + order: VSYNC, LCD_SYSTEM. The interrupt specifier format + depends on the interrupt controller used. +- interrupt-names: should contain the interrupt names: "vsync", "lcd_sys" + in the same order as they were listed in the interrupts + property. +- clocks: must include clock specifiers corresponding to entries in the + clock-names property. +- clock-names: list of clock names sorted in the same order as the clocks + property. Must contain "aclk_decon", "aclk_smmu_decon0x", + "aclk_xiu_decon0x", "pclk_smmu_decon0x", clk_decon_vclk", + "sclk_decon_eclk" +- ports: contains a port which is connected to mic node. address-cells and + size-cells must 1 and 0, respectively. +- port: contains an endpoint node which is connected to the endpoint in the mic + node. The reg value muset be 0. +- i80-if-timings: specify whether the panel which is connected to decon uses + i80 lcd interface or mipi video interface. This node contains + no timing information as that of fimd does. Because there is + no register in decon to specify i80 interface timing value, + it is not needed, but make it remain to use same kind of node + in fimd and exynos7 decon. + +Example: +SoC specific DT entry: +decon: decon@13800000 { + compatible = "samsung,exynos5433-decon"; + reg = <0x13800000 0x2104>; + clocks = <&cmu_disp CLK_ACLK_DECON>, <&cmu_disp CLK_ACLK_SMMU_DECON0X>, + <&cmu_disp CLK_ACLK_XIU_DECON0X>, + <&cmu_disp CLK_PCLK_SMMU_DECON0X>, + <&cmu_disp CLK_SCLK_DECON_VCLK>, + <&cmu_disp CLK_SCLK_DECON_ECLK>; + clock-names = "aclk_decon", "aclk_smmu_decon0x", "aclk_xiu_decon0x", + "pclk_smmu_decon0x", "sclk_decon_vclk", "sclk_decon_eclk"; + interrupt-names = "vsync", "lcd_sys"; + interrupts = <0 202 0>, <0 203 0>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + decon_to_mic: endpoint { + remote-endpoint = <&mic_to_decon>; + }; + }; + }; +}; + +Board specific DT entry: +&decon { + i80-if-timings { + }; +}; diff --git a/drivers/gpu/drm/exynos/Kconfig b/drivers/gpu/drm/exynos/Kconfig index ddb7c8a..51a4eb5 100644 --- a/drivers/gpu/drm/exynos/Kconfig +++ b/drivers/gpu/drm/exynos/Kconfig @@ -24,6 +24,12 @@ config DRM_EXYNOS_FIMD help Choose this option if you want to use Exynos FIMD for DRM.
+config DRM_EXYNOS5433_DECON + bool "Exynos5433 DRM DECON" + depends on DRM_EXYNOS + help + Choose this option if you want to use Exynos5433 DECON for DRM. + config DRM_EXYNOS7_DECON bool "Exynos7 DRM DECON" depends on DRM_EXYNOS && !FB_S3C diff --git a/drivers/gpu/drm/exynos/Makefile b/drivers/gpu/drm/exynos/Makefile index cc90679..fbd084d 100644 --- a/drivers/gpu/drm/exynos/Makefile +++ b/drivers/gpu/drm/exynos/Makefile @@ -10,6 +10,7 @@ exynosdrm-y := exynos_drm_drv.o exynos_drm_encoder.o \
exynosdrm-$(CONFIG_DRM_EXYNOS_IOMMU) += exynos_drm_iommu.o exynosdrm-$(CONFIG_DRM_EXYNOS_FIMD) += exynos_drm_fimd.o +exynosdrm-$(CONFIG_DRM_EXYNOS5433_DECON) += exynos5433_drm_decon.o exynosdrm-$(CONFIG_DRM_EXYNOS7_DECON) += exynos7_drm_decon.o exynosdrm-$(CONFIG_DRM_EXYNOS_DPI) += exynos_drm_dpi.o exynosdrm-$(CONFIG_DRM_EXYNOS_DSI) += exynos_drm_dsi.o diff --git a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c new file mode 100644 index 0000000..a33c0b7 --- /dev/null +++ b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c @@ -0,0 +1,694 @@ +/* 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 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundationr + */ + +#include <linux/platform_device.h> +#include <linux/clk.h> +#include <linux/component.h> +#include <linux/of_gpio.h> + +#include <video/exynos5433_decon.h> + +#include "exynos_drm_drv.h" +#include "exynos_drm_crtc.h" +#include "exynos_drm_plane.h" +#include "exynos_drm_iommu.h" + +#define WINDOWS_NR 3 +#define MIN_FB_WIDTH_FOR_16WORD_BURST 128 + +struct decon_context { + struct device *dev; + struct drm_device *drm_dev; + struct exynos_drm_crtc *crtc; + struct exynos_drm_plane planes[WINDOWS_NR]; + void __iomem *addr; + struct clk *clks[6]; + unsigned int default_win; + int pipe; + bool suspended; + +#define BIT_CLKS_ENABLED 0 +#define BIT_IRQS_ENABLED 1 + unsigned long enabled; + bool i80_if; + atomic_t win_updated; +}; + +static const char * const decon_clks_name[] = { + "aclk_decon", + "aclk_smmu_decon0x", + "aclk_xiu_decon0x", + "pclk_smmu_decon0x", + "sclk_decon_vclk", + "sclk_decon_eclk", +}; + +static int decon_enable_vblank(struct exynos_drm_crtc *crtc) +{ + struct decon_context *ctx = crtc->ctx; + u32 val; + + if (ctx->suspended) + return -EPERM; + + if (!test_and_set_bit(BIT_IRQS_ENABLED, &ctx->enabled)) { + val = VIDINTCON0_INTEN; + if (ctx->i80_if) + val |= VIDINTCON0_FRAMEDONE; + else + val |= VIDINTCON0_INTFRMEN; + + writel(val, ctx->addr + DECON_VIDINTCON0); + } + + return 0; +} + +static void decon_disable_vblank(struct exynos_drm_crtc *crtc) +{ + struct decon_context *ctx = crtc->ctx; + + if (ctx->suspended) + return; + + if (test_and_clear_bit(BIT_IRQS_ENABLED, &ctx->enabled)) + writel(0, ctx->addr + DECON_VIDINTCON0); +} + +static void decon_setup_trigger(struct decon_context *ctx) +{ + u32 val = TRIGCON_TRIGEN_PER_F | TRIGCON_TRIGEN_F | + TRIGCON_TE_AUTO_MASK | TRIGCON_SWTRIGEN; + writel(val, ctx->addr + DECON_TRIGCON); +} + +static void decon_commit(struct exynos_drm_crtc *crtc) +{ + struct decon_context *ctx = crtc->ctx; + struct drm_display_mode *mode = &crtc->base.mode; + u32 val; + + if (ctx->suspended) + return; + + /* 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) + val |= VIDOUT_COMMAND_IF; + else + val |= VIDOUT_RGB_IF; + writel(val, ctx->addr + DECON_VIDOUTCON0); + + val = VIDTCON2_LINEVAL(mode->vdisplay - 1) | + VIDTCON2_HOZVAL(mode->hdisplay - 1); + writel(val, ctx->addr + DECON_VIDTCON2); + + if (!ctx->i80_if) { + val = VIDTCON00_VBPD_F( + mode->crtc_vtotal - mode->crtc_vsync_end) | + VIDTCON00_VFPD_F( + mode->crtc_vsync_start - mode->crtc_vdisplay); + writel(val, ctx->addr + DECON_VIDTCON00); + + val = VIDTCON01_VSPW_F( + mode->crtc_vsync_end - mode->crtc_vsync_start); + writel(val, ctx->addr + DECON_VIDTCON01); + + val = VIDTCON10_HBPD_F( + mode->crtc_htotal - mode->crtc_hsync_end) | + VIDTCON10_HFPD_F( + mode->crtc_hsync_start - mode->crtc_hdisplay); + writel(val, ctx->addr + DECON_VIDTCON10); + + val = VIDTCON11_HSPW_F( + mode->crtc_hsync_end - mode->crtc_hsync_start); + writel(val, ctx->addr + DECON_VIDTCON11); + } + + decon_setup_trigger(ctx); + + /* enable output and display signal */ + val = VIDCON0_ENVID | VIDCON0_ENVID_F; + writel(val, ctx->addr + DECON_VIDCON0); +} + +#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 exynos_drm_plane *plane = &ctx->planes[win]; + unsigned long val; + + val = readl(ctx->addr + DECON_WINCONx(win)); + val &= ~WINCONx_BPPMODE_MASK; + + switch (plane->pixel_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: + val |= WINCONx_BPPMODE_32BPP_A8888; + val |= WINCONx_WSWP_F | WINCONx_BLD_PIX_F | WINCONx_ALPHA_SEL_F; + val |= WINCONx_BURSTLEN_16WORD; + break; + default: + DRM_ERROR("Proper pixel format is not set\n"); + return; + } + + DRM_DEBUG_KMS("bpp = %u\n", plane->bpp); + + /* + * 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 (plane->fb_width < MIN_FB_WIDTH_FOR_16WORD_BURST) { + val &= ~WINCONx_BURSTLEN_MASK; + val |= WINCONx_BURSTLEN_8WORD; + } + + writel(val, ctx->addr + DECON_WINCONx(win)); +} + +static void decon_shadow_protect_win(struct decon_context *ctx, int win, + bool protect) +{ + u32 val; + + val = readl(ctx->addr + DECON_SHADOWCON); + + if (protect) + val |= SHADOWCON_Wx_PROTECT(win); + else + val &= ~SHADOWCON_Wx_PROTECT(win); + + writel(val, ctx->addr + DECON_SHADOWCON); +} + +static void decon_win_commit(struct exynos_drm_crtc *crtc, unsigned int win) +{ + struct decon_context *ctx = crtc->ctx; + struct exynos_drm_plane *plane; + u32 val; + + if (win < 0 || win >= WINDOWS_NR) + return; + + plane = &ctx->planes[win]; + + /* If suspended, enable this on resume */ + if (ctx->suspended) { + plane->resume = true; + return; + } + + decon_shadow_protect_win(ctx, win, true); + + val = COORDINATE_X(plane->crtc_x) | COORDINATE_Y(plane->crtc_y); + writel(val, ctx->addr + DECON_VIDOSDxA(win)); + + val = COORDINATE_X(plane->crtc_x + plane->crtc_width - 1) | + COORDINATE_Y(plane->crtc_y + plane->crtc_height - 1); + writel(val, ctx->addr + DECON_VIDOSDxB(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_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(plane->dma_addr[0], ctx->addr + DECON_VIDW0xADD0B0(win)); + + val = plane->dma_addr[0] + plane->pitch * plane->crtc_height; + writel(val, ctx->addr + DECON_VIDW0xADD1B0(win)); + + val = OFFSIZE(plane->pitch - plane->crtc_width * (plane->bpp >> 3)) + | PAGEWIDTH(plane->crtc_width * (plane->bpp >> 3)); + writel(val, ctx->addr + DECON_VIDW0xADD2(win)); + + decon_win_set_pixfmt(ctx, win); + + /* window enable */ + val = readl(ctx->addr + DECON_WINCONx(win)); + val |= WINCONx_ENWIN_F; + writel(val, ctx->addr + DECON_WINCONx(win)); + + decon_shadow_protect_win(ctx, win, false); + + /* standalone update */ + val = readl(ctx->addr + DECON_UPDATE); + val |= STANDALONE_UPDATE_F; + writel(val, ctx->addr + DECON_UPDATE); + + if (ctx->i80_if) + atomic_set(&ctx->win_updated, 1); + + plane->enabled = true; +} + +static void decon_win_disable(struct exynos_drm_crtc *crtc, unsigned int win) +{ + struct decon_context *ctx = crtc->ctx; + struct exynos_drm_plane *plane; + u32 val; + + if (win < 0 || win >= WINDOWS_NR) + return; + + plane = &ctx->planes[win]; + + if (ctx->suspended) { + plane->resume = false; + return; + } + + decon_shadow_protect_win(ctx, win, true); + + /* window disable */ + val = readl(ctx->addr + DECON_WINCONx(win)); + val &= ~WINCONx_ENWIN_F; + writel(val, ctx->addr + DECON_WINCONx(win)); + + decon_shadow_protect_win(ctx, win, false); + + /* standalone update */ + val = readl(ctx->addr + DECON_UPDATE); + val |= STANDALONE_UPDATE_F; + writel(val, ctx->addr + DECON_UPDATE); + + plane->enabled = false; +} + +static void decon_window_suspend(struct decon_context *ctx) +{ + struct exynos_drm_plane *plane; + int i; + + for (i = 0; i < WINDOWS_NR; i++) { + plane = &ctx->planes[i]; + plane->resume = plane->enabled; + if (plane->enabled) + decon_win_disable(ctx->crtc, i); + } +} + +static void decon_window_resume(struct decon_context *ctx) +{ + struct exynos_drm_plane *plane; + int i; + + for (i = 0; i < WINDOWS_NR; i++) { + plane = &ctx->planes[i]; + plane->enabled = plane->resume; + plane->resume = false; + } +} + +static void decon_apply(struct decon_context *ctx) +{ + struct exynos_drm_plane *plane; + int i; + + decon_setup_trigger(ctx); + + for (i = 0; i < WINDOWS_NR; i++) { + plane = &ctx->planes[i]; + if (plane->enabled) + decon_win_commit(ctx->crtc, i); + else + decon_win_disable(ctx->crtc, i); + } + + decon_commit(ctx->crtc); +} + +static void decon_enable(struct exynos_drm_crtc *crtc) +{ + struct decon_context *ctx = crtc->ctx; + int ret; + int i; + + if (!ctx->suspended) + return; + + ctx->suspended = false; + + for (i = 0; i < ARRAY_SIZE(decon_clks_name); i++) { + ret = clk_prepare_enable(ctx->clks[i]); + if (ret < 0) + goto err; + } + + set_bit(BIT_CLKS_ENABLED, &ctx->enabled); + + decon_window_resume(ctx); + decon_apply(ctx); + + return; +err: + while (--i >= 0) + clk_disable_unprepare(ctx->clks[i]); + + ctx->suspended = true; +} + +static void decon_swreset(struct decon_context *ctx) +{ + unsigned int tries; + + writel(0, ctx->addr + DECON_VIDCON0); + for (tries = 2000; tries; --tries) { + if (~readl(ctx->addr + DECON_VIDCON0) & VIDCON0_STOP_STATUS) + break; + udelay(10); + } + + WARN(tries == 0, "failed to disable DECON\n"); + + writel(VIDCON0_SWRESET, ctx->addr + DECON_VIDCON0); + for (tries = 2000; tries; --tries) { + if (~readl(ctx->addr + DECON_VIDCON0) & VIDCON0_SWRESET) + break; + udelay(10); + } + + WARN(tries == 0, "failed to software reset DECON\n"); +} + +static void decon_disable(struct exynos_drm_crtc *crtc) +{ + struct decon_context *ctx = crtc->ctx; + int i; + + if (ctx->suspended) + return; + + clear_bit(BIT_CLKS_ENABLED, &ctx->enabled); + decon_window_suspend(ctx); + decon_swreset(ctx); + + for (i = ARRAY_SIZE(decon_clks_name) - 1; i >= 0; i--) + clk_disable_unprepare(ctx->clks[i]); + + ctx->suspended = true; +} + +void decon_te_irq_handler(struct exynos_drm_crtc *crtc) +{ + struct decon_context *ctx = crtc->ctx; + u32 val; + + if (!test_bit(BIT_CLKS_ENABLED, &ctx->enabled)) + return; + + if (atomic_add_unless(&ctx->win_updated, -1, 0)) { + /* trigger */ + val = readl(ctx->addr + DECON_TRIGCON); + val |= TRIGCON_SWTRIGCMD; + writel(val, ctx->addr + DECON_TRIGCON); + } + + drm_handle_vblank(ctx->drm_dev, ctx->pipe); +} + +static void decon_clear_channels(struct exynos_drm_crtc *crtc) +{ + struct decon_context *ctx = crtc->ctx; + int win, i, ret; + u32 val; + + DRM_DEBUG_KMS("%s\n", __FILE__); + + for (i = 0; i < ARRAY_SIZE(decon_clks_name); i++) { + ret = clk_prepare_enable(ctx->clks[i]); + if (ret < 0) + goto err; + } + + for (win = 0; win < WINDOWS_NR; win++) { + /* shadow update disable */ + val = readl(ctx->addr + DECON_SHADOWCON); + val |= SHADOWCON_Wx_PROTECT(win); + writel(val, ctx->addr + DECON_SHADOWCON); + + /* window disable */ + val = readl(ctx->addr + DECON_WINCONx(win)); + val &= ~WINCONx_ENWIN_F; + writel(val, ctx->addr + DECON_WINCONx(win)); + + /* shadow update enable */ + val = readl(ctx->addr + DECON_SHADOWCON); + val &= ~SHADOWCON_Wx_PROTECT(win); + writel(val, ctx->addr + DECON_SHADOWCON); + + /* standalone update */ + val = readl(ctx->addr + DECON_UPDATE); + val |= STANDALONE_UPDATE_F; + writel(val, ctx->addr + DECON_UPDATE); + } + /* TODO: wait for possible vsync */ + msleep(50); + +err: + while (--i >= 0) + clk_disable_unprepare(ctx->clks[i]); +} + +static struct exynos_drm_crtc_ops decon_crtc_ops = { + .enable = decon_enable, + .disable = decon_disable, + .commit = decon_commit, + .enable_vblank = decon_enable_vblank, + .disable_vblank = decon_disable_vblank, + .commit = decon_commit, + .win_commit = decon_win_commit, + .win_disable = decon_win_disable, + .te_handler = decon_te_irq_handler, + .clear_channels = decon_clear_channels, +}; + +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_private *priv = drm_dev->dev_private; + struct exynos_drm_plane *exynos_plane; + enum drm_plane_type type; + unsigned int zpos; + int ret; + + ctx->drm_dev = drm_dev; + ctx->pipe = priv->pipe++; + + for (zpos = 0; zpos < WINDOWS_NR; zpos++) { + type = (zpos == ctx->default_win) ? DRM_PLANE_TYPE_PRIMARY : + DRM_PLANE_TYPE_OVERLAY; + ret = exynos_plane_init(drm_dev, &ctx->planes[zpos], + 1 << ctx->pipe, type, zpos); + if (ret) + return ret; + } + + exynos_plane = &ctx->planes[ctx->default_win]; + ctx->crtc = exynos_drm_crtc_create(drm_dev, &exynos_plane->base, + ctx->pipe, EXYNOS_DISPLAY_TYPE_LCD, + &decon_crtc_ops, ctx); + if (IS_ERR(ctx->crtc)) { + ret = PTR_ERR(ctx->crtc); + goto err; + } + + ret = drm_iommu_attach_device_if_possible(ctx->crtc, drm_dev, dev); + if (ret) + goto err; + + return ret; +err: + priv->pipe--; + return ret; +} + +static void decon_unbind(struct device *dev, struct device *master, void *data) +{ + struct decon_context *ctx = dev_get_drvdata(dev); + + decon_disable(ctx->crtc); + + /* detach this sub driver from iommu mapping if supported. */ + if (is_drm_iommu_supported(ctx->drm_dev)) + drm_iommu_detach_device(ctx->drm_dev, ctx->dev); +} + +static const struct component_ops decon_component_ops = { + .bind = decon_bind, + .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->enabled)) + goto out; + + val = readl(ctx->addr + DECON_VIDINTCON1); + if (val & VIDINTCON1_INTFRMPEND) { + drm_handle_vblank(ctx->drm_dev, ctx->pipe); + + /* 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) +{ + struct decon_context *ctx = dev_id; + u32 val; + + if (!test_bit(BIT_CLKS_ENABLED, &ctx->enabled)) + goto out; + + val = readl(ctx->addr + DECON_VIDINTCON1); + if (val & VIDINTCON1_INTFRMDONEPEND) { + exynos_drm_crtc_finish_pageflip(ctx->drm_dev, ctx->pipe); + + /* clear */ + writel(VIDINTCON1_INTFRMDONEPEND, + ctx->addr + DECON_VIDINTCON1); + } + +out: + return IRQ_HANDLED; +} + +static int exynos5433_decon_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct decon_context *ctx; + struct resource *res; + int ret; + int i; + + ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); + if (!ctx) + return -ENOMEM; + + ctx->default_win = 0; + ctx->suspended = true; + ctx->dev = dev; + if (of_get_child_by_name(dev->of_node, "i80-if-timings")) + ctx->i80_if = true; + + 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; + } + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + dev_err(dev, "cannot find IO resource\n"); + return -ENXIO; + } + + ctx->addr = devm_ioremap_resource(dev, res); + if (IS_ERR(ctx->addr)) { + dev_err(dev, "ioremap failed\n"); + return PTR_ERR(ctx->addr); + } + + res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, + ctx->i80_if ? "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); + if (ret < 0) { + dev_err(dev, "lcd_sys irq request failed\n"); + return ret; + } + + ret = exynos_drm_component_add(dev, EXYNOS_DEVICE_TYPE_CRTC, + EXYNOS_DISPLAY_TYPE_LCD); + if (ret < 0) + return ret; + + platform_set_drvdata(pdev, ctx); + + ret = component_add(dev, &decon_component_ops); + if (ret < 0) { + exynos_drm_component_del(dev, EXYNOS_DEVICE_TYPE_CRTC); + return ret; + } + + return 0; +} + +static int exynos5433_decon_remove(struct platform_device *pdev) +{ + component_del(&pdev->dev, &decon_component_ops); + exynos_drm_component_del(&pdev->dev, EXYNOS_DEVICE_TYPE_CRTC); + + 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, + .driver = { + .name = "exynos5433-decon", + .of_match_table = exynos5433_decon_driver_dt_match, + }, +}; diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h index 1ba34f1..769edfd 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.h +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h @@ -306,6 +306,7 @@ int exynos_drm_create_enc_conn(struct drm_device *dev, struct exynos_drm_display *display);
extern struct platform_driver fimd_driver; +extern struct platform_driver exynos5433_decon_driver; extern struct platform_driver decon_driver; extern struct platform_driver dp_driver; extern struct platform_driver dsi_driver; diff --git a/include/video/exynos5433_decon.h b/include/video/exynos5433_decon.h new file mode 100644 index 0000000..3696575 --- /dev/null +++ b/include/video/exynos5433_decon.h @@ -0,0 +1,165 @@ +/* + * Copyright (C) 2014 Samsung Electronics Co.Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundationr + */ + +#ifndef EXYNOS_REGS_DECON_H +#define EXYNOS_REGS_DECON_H + +/* Exynos543X DECON */ +#define DECON_VIDCON0 0x0000 +#define DECON_VIDOUTCON0 0x0010 +#define DECON_WINCONx(n) (0x0020 + ((n) * 4)) +#define DECON_VIDOSDxH(n) (0x0080 + ((n) * 4)) +#define DECON_SHADOWCON 0x00A0 +#define DECON_VIDOSDxA(n) (0x00B0 + ((n) * 0x20)) +#define DECON_VIDOSDxB(n) (0x00B4 + ((n) * 0x20)) +#define DECON_VIDOSDxC(n) (0x00B8 + ((n) * 0x20)) +#define DECON_VIDOSDxD(n) (0x00BC + ((n) * 0x20)) +#define DECON_VIDOSDxE(n) (0x00C0 + ((n) * 0x20)) +#define DECON_VIDW0xADD0B0(n) (0x0150 + ((n) * 0x10)) +#define DECON_VIDW0xADD0B1(n) (0x0154 + ((n) * 0x10)) +#define DECON_VIDW0xADD0B2(n) (0x0158 + ((n) * 0x10)) +#define DECON_VIDW0xADD1B0(n) (0x01A0 + ((n) * 0x10)) +#define DECON_VIDW0xADD1B1(n) (0x01A4 + ((n) * 0x10)) +#define DECON_VIDW0xADD1B2(n) (0x01A8 + ((n) * 0x10)) +#define DECON_VIDW0xADD2(n) (0x0200 + ((n) * 4)) +#define DECON_LOCALxSIZE(n) (0x0214 + ((n) * 4)) +#define DECON_VIDINTCON0 0x0220 +#define DECON_VIDINTCON1 0x0224 +#define DECON_WxKEYCON0(n) (0x0230 + ((n - 1) * 8)) +#define DECON_WxKEYCON1(n) (0x0234 + ((n - 1) * 8)) +#define DECON_WxKEYALPHA(n) (0x0250 + ((n - 1) * 4)) +#define DECON_WINxMAP(n) (0x0270 + ((n) * 4)) +#define DECON_QOSLUT07_00 0x02C0 +#define DECON_QOSLUT15_08 0x02C4 +#define DECON_QOSCTRL 0x02C8 +#define DECON_BLENDERQx(n) (0x0300 + ((n - 1) * 4)) +#define DECON_BLENDCON 0x0310 +#define DECON_OPE_VIDW0xADD0(n) (0x0400 + ((n) * 4)) +#define DECON_OPE_VIDW0xADD1(n) (0x0414 + ((n) * 4)) +#define DECON_FRAMEFIFO_REG7 0x051C +#define DECON_FRAMEFIFO_REG8 0x0520 +#define DECON_FRAMEFIFO_STATUS 0x0524 +#define DECON_CMU 0x1404 +#define DECON_UPDATE 0x1410 +#define DECON_UPDATE_SCHEME 0x1438 +#define DECON_VIDCON1 0x2000 +#define DECON_VIDCON2 0x2004 +#define DECON_VIDCON3 0x2008 +#define DECON_VIDCON4 0x200C +#define DECON_VIDTCON2 0x2028 +#define DECON_FRAME_SIZE 0x2038 +#define DECON_LINECNT_OP_THRESHOLD 0x203C +#define DECON_TRIGCON 0x2040 +#define DECON_TRIGSKIP 0x2050 +#define DECON_CRCRDATA 0x20B0 +#define DECON_CRCCTRL 0x20B4 + +/* Exynos5430 DECON */ +#define DECON_VIDTCON0 0x2020 +#define DECON_VIDTCON1 0x2024 + +/* Exynos5433 DECON */ +#define DECON_VIDTCON00 0x2010 +#define DECON_VIDTCON01 0x2014 +#define DECON_VIDTCON10 0x2018 +#define DECON_VIDTCON11 0x201C + +/* Exynos543X DECON Internal */ +#define DECON_W013DSTREOCON 0x0320 +#define DECON_W233DSTREOCON 0x0324 +#define DECON_FRAMEFIFO_REG0 0x0500 +#define DECON_ENHANCER_CTRL 0x2100 + +/* Exynos543X DECON TV */ +#define DECON_VCLKCON0 0x0014 +#define DECON_VIDINTCON2 0x0228 +#define DECON_VIDINTCON3 0x022C + +/* VIDCON0 */ +#define VIDCON0_SWRESET (1 << 28) +#define VIDCON0_STOP_STATUS (1 << 2) +#define VIDCON0_ENVID (1 << 1) +#define VIDCON0_ENVID_F (1 << 0) + +/* VIDOUTCON0 */ +#define VIDOUT_LCD_ON (1 << 24) +#define VIDOUT_IF_F_MASK (0x3 << 20) +#define VIDOUT_RGB_IF (0x0 << 20) +#define VIDOUT_COMMAND_IF (0x2 << 20) + +/* WINCONx */ +#define WINCONx_HAWSWP_F (1 << 16) +#define WINCONx_WSWP_F (1 << 15) +#define WINCONx_BURSTLEN_MASK (0x3 << 10) +#define WINCONx_BURSTLEN_16WORD (0x0 << 10) +#define WINCONx_BURSTLEN_8WORD (0x1 << 10) +#define WINCONx_BURSTLEN_4WORD (0x2 << 10) +#define WINCONx_BLD_PIX_F (1 << 6) +#define WINCONx_BPPMODE_MASK (0xf << 2) +#define WINCONx_BPPMODE_16BPP_565 (0x5 << 2) +#define WINCONx_BPPMODE_16BPP_A1555 (0x6 << 2) +#define WINCONx_BPPMODE_16BPP_I1555 (0x7 << 2) +#define WINCONx_BPPMODE_24BPP_888 (0xb << 2) +#define WINCONx_BPPMODE_24BPP_A1887 (0xc << 2) +#define WINCONx_BPPMODE_25BPP_A1888 (0xd << 2) +#define WINCONx_BPPMODE_32BPP_A8888 (0xd << 2) +#define WINCONx_BPPMODE_16BPP_A4444 (0xe << 2) +#define WINCONx_ALPHA_SEL_F (1 << 1) +#define WINCONx_ENWIN_F (1 << 0) + +/* SHADOWCON */ +#define SHADOWCON_Wx_PROTECT(n) (1 << (10 + (n))) + +/* VIDOSDxD */ +#define VIDOSD_Wx_ALPHA_R_F(n) (((n) & 0xff) << 16) +#define VIDOSD_Wx_ALPHA_G_F(n) (((n) & 0xff) << 8) +#define VIDOSD_Wx_ALPHA_B_F(n) (((n) & 0xff) << 0) + +/* VIDINTCON0 */ +#define VIDINTCON0_FRAMEDONE (1 << 17) +#define VIDINTCON0_INTFRMEN (1 << 12) +#define VIDINTCON0_INTEN (1 << 0) + +/* VIDINTCON1 */ +#define VIDINTCON1_INTFRMDONEPEND (1 << 2) +#define VIDINTCON1_INTFRMPEND (1 << 1) +#define VIDINTCON1_INTFIFOPEND (1 << 0) + +/* DECON_CMU */ +#define CMU_CLKGAGE_MODE_SFR_F (1 << 1) +#define CMU_CLKGAGE_MODE_MEM_F (1 << 0) + +/* DECON_UPDATE */ +#define STANDALONE_UPDATE_F (1 << 0) + +/* DECON_VIDTCON00 */ +#define VIDTCON00_VBPD_F(x) (((x) & 0xfff) << 16) +#define VIDTCON00_VFPD_F(x) ((x) & 0xfff) + +/* DECON_VIDTCON01 */ +#define VIDTCON01_VSPW_F(x) (((x) & 0xfff) << 16) + +/* DECON_VIDTCON10 */ +#define VIDTCON10_HBPD_F(x) (((x) & 0xfff) << 16) +#define VIDTCON10_HFPD_F(x) ((x) & 0xfff) + +/* DECON_VIDTCON11 */ +#define VIDTCON11_HSPW_F(x) (((x) & 0xfff) << 16) + +/* DECON_VIDTCON2 */ +#define VIDTCON2_LINEVAL(x) (((x) & 0xfff) << 16) +#define VIDTCON2_HOZVAL(x) ((x) & 0xfff) + +/* TRIGCON */ +#define TRIGCON_TRIGEN_PER_F (1 << 31) +#define TRIGCON_TRIGEN_F (1 << 30) +#define TRIGCON_TE_AUTO_MASK (1 << 29) +#define TRIGCON_SWTRIGCMD (1 << 1) +#define TRIGCON_SWTRIGEN (1 << 0) + +#endif /* EXYNOS_REGS_DECON_H */ -- 1.9.1