drm/exynos: add Exynos5433 decon driver
authorJoonyoung Shim <jy0922.shim@samsung.com>
Fri, 12 Jun 2015 12:59:00 +0000 (21:59 +0900)
committerInki Dae <inki.dae@samsung.com>
Mon, 22 Jun 2015 10:56:44 +0000 (19:56 +0900)
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>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Documentation/devicetree/bindings/video/exynos5433-decon.txt [new file with mode: 0644]
drivers/gpu/drm/exynos/Kconfig
drivers/gpu/drm/exynos/Makefile
drivers/gpu/drm/exynos/exynos5433_drm_decon.c [new file with mode: 0644]
drivers/gpu/drm/exynos/exynos_drm_drv.h
include/video/exynos5433_decon.h [new file with mode: 0644]

diff --git a/Documentation/devicetree/bindings/video/exynos5433-decon.txt b/Documentation/devicetree/bindings/video/exynos5433-decon.txt
new file mode 100644 (file)
index 0000000..377afbf
--- /dev/null
@@ -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 {
+       };
+};
index ddb7c8a26bfc58e3daf23116bd5dc82a590ca6a0..51a4eb5644972b4766233b04c9d8b5dc3258de78 100644 (file)
@@ -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
index cc90679cfc061e7a567f562b88c9e1f42f585b4b..fbd084d3f658d84c98b9301819ce1ec262097c1b 100644 (file)
@@ -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 (file)
index 0000000..8b1225f
--- /dev/null
@@ -0,0 +1,660 @@
+/* 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 <linux/pm_runtime.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;
+       unsigned long                   irq_flags;
+       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(0, &ctx->irq_flags)) {
+               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(0, &ctx->irq_flags))
+               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 (ctx->suspended)
+               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);
+}
+
+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)
+               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);
+}
+
+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_enable(struct exynos_drm_crtc *crtc)
+{
+       struct decon_context *ctx = crtc->ctx;
+       int ret;
+       int i;
+
+       if (!ctx->suspended)
+               return;
+
+       ctx->suspended = false;
+
+       pm_runtime_get_sync(ctx->dev);
+
+       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);
+
+       /* if vblank was enabled status, enable it again. */
+       if (test_and_clear_bit(0, &ctx->irq_flags))
+               decon_enable_vblank(ctx->crtc);
+
+       decon_commit(ctx->crtc);
+
+       return;
+err:
+       while (--i >= 0)
+               clk_disable_unprepare(ctx->clks[i]);
+
+       ctx->suspended = true;
+}
+
+static void decon_disable(struct exynos_drm_crtc *crtc)
+{
+       struct decon_context *ctx = crtc->ctx;
+       int i;
+
+       if (ctx->suspended)
+               return;
+
+       /*
+        * 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 = 0; i < WINDOWS_NR; i++)
+               decon_win_disable(crtc, i);
+
+       decon_swreset(ctx);
+
+       for (i = 0; i < ARRAY_SIZE(decon_clks_name); i++)
+               clk_disable_unprepare(ctx->clks[i]);
+
+       clear_bit(BIT_CLKS_ENABLED, &ctx->enabled);
+
+       pm_runtime_put_sync(ctx->dev);
+
+       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;
+       }
+
+       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;
+}
+
+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,
+       },
+};
index 61a9a9ed37f0a5c7b23f823b13890d07ea076a76..819ce3e0f31a05c5a52261bc9db616293bef4f8e 100644 (file)
@@ -301,6 +301,7 @@ 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 (file)
index 0000000..3696575
--- /dev/null
@@ -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 */