From: Joonyoung Shim <jy0922.shim@xxxxxxxxxxx>
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@xxxxxxxxxxx>
Signed-off-by: Hyungwon Hwang <human.hwang@xxxxxxxxxxx>
---
Changes for v2:
- change file names and variable names of decon to represnt exynos5433 instead
of exynos to distinguish them from exynos7 decon
Changes for v3:
- fail fast when the proper image format is not set
- remove unnecessary checking code
- add and modify the function to make DPMS work well
Changes for v4:
- rebased to exynos-drm-next with the clean-up patchset by Gustavo Padovan.
Changes for v5:
- None
Changes for v6:
- None
.../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 | 611 +++++++++++++++++++++
drivers/gpu/drm/exynos/exynos_drm_drv.c | 3 +
drivers/gpu/drm/exynos/exynos_drm_drv.h | 1 +
include/video/exynos5433_decon.h | 163 ++++++
7 files changed, 850 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 0a67803..dd6ae21 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 "Exynos DRM DECON"
depends on DRM_EXYNOS
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..02cade4
--- /dev/null
+++ b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
@@ -0,0 +1,611 @@
+/* drivers/gpu/drm/exynos5433_drm_decon.c
+ *
+ * Copyright (C) 2015 Samsung Electronics Co.Ltd
+ * Authors:
+ * Joonyoung Shim <jy0922.shim@xxxxxxxxxxx>
+ * Hyungwon Hwang <human.hwang@xxxxxxxxxxx>
+ *
+ * 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"
+
+#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_commit(struct exynos_drm_crtc *crtc)
+{
+ struct decon_context *ctx = crtc->ctx;
+ struct drm_display_mode *mode = &crtc->base.mode;
+ u32 val;
+
+ /* 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);
+ }
+
+ /* sw trigger enable */
+ val = TRIGCON_TRIGEN_PER_F | TRIGCON_TRIGEN_F | TRIGCON_TE_AUTO_MASK |
+ TRIGCON_SWTRIGEN;
+ writel(val, ctx->addr + DECON_TRIGCON);
+
+ /* 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;
+
+ 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_dpms_on(struct decon_context *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_dpms_off(struct decon_context *ctx)
+{
+ int i;
+
+ if (ctx->suspended)
+ return;
+
+ clear_bit(BIT_CLKS_ENABLED, &ctx->enabled);
+ decon_window_suspend(ctx);
+
+ for (i = ARRAY_SIZE(decon_clks_name) - 1; i >= 0; i--)
+ clk_disable_unprepare(ctx->clks[i]);
+
+ ctx->suspended = true;
+}
+
+static void decon_dpms(struct exynos_drm_crtc *crtc, int mode)
+{
+ struct decon_context *ctx = crtc->ctx;
+
+ switch (mode) {
+ case DRM_MODE_DPMS_ON:
+ decon_dpms_on(ctx);
+ break;
+ case DRM_MODE_DPMS_STANDBY:
+ case DRM_MODE_DPMS_SUSPEND:
+ case DRM_MODE_DPMS_OFF:
+ decon_dpms_off(ctx);
+ break;
+ default:
+ DRM_DEBUG_KMS("unspecified mode %d\n", mode);
+ break;
+ }
+}
+
+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);
+ }
+}
+
+static struct exynos_drm_crtc_ops decon_crtc_ops = {
+ .dpms = decon_dpms,
+ .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,
+};
+
+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;
+ 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;
+ }
+
+ ctx->crtc = exynos_drm_crtc_create(drm_dev,
+ &ctx->planes[ctx->default_win].base, ctx->pipe,
+ EXYNOS_DISPLAY_TYPE_LCD, &decon_crtc_ops, ctx);
+ if (IS_ERR(ctx->crtc)) {
+ priv->pipe--;
+ return PTR_ERR(ctx->crtc);
+ }
+
+ return 0;
+}
+
+static void decon_unbind(struct device *dev, struct device *master, void *data)
+{
+ struct decon_context *ctx = dev_get_drvdata(dev);
+
+ decon_dpms(ctx->crtc, DRM_MODE_DPMS_OFF);
+}
+
+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);
+ 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.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
index 8ac4652..78ef497 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
@@ -529,6 +529,9 @@ static struct platform_driver *const exynos_drm_kms_drivers[] = {
#ifdef CONFIG_DRM_EXYNOS_FIMD
&fimd_driver,
#endif
+#ifdef CONFIG_DRM_EXYNOS5433_DECON
+ &exynos5433_decon_driver,
+#endif
#ifdef CONFIG_DRM_EXYNOS7_DECON
&decon_driver,
#endif
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h
index e12ecb5..147737a 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h
@@ -342,6 +342,7 @@ void exynos_drm_component_del(struct device *dev,
enum exynos_drm_device_type dev_type);
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..9e7f851
--- /dev/null
+++ b/include/video/exynos5433_decon.h
@@ -0,0 +1,163 @@
+/*
+ * 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_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
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