* [PATCH 3/5] drm: jz4780: Add DRM driver for Ingenic JZ4780
2015-03-04 15:37 [PATCH 0/5] drm: dt: jz4780: Add Ingenic JZ4780 driver Zubair Lutfullah Kakakhel
2015-03-04 15:37 ` [PATCH 1/5] dt-bindings: video: Add Ingenic jz4780-drm binding Zubair Lutfullah Kakakhel
2015-03-04 15:37 ` [PATCH 2/5] dt-bindings: video: Add jz4780-lcd binding Zubair Lutfullah Kakakhel
@ 2015-03-04 15:37 ` Zubair Lutfullah Kakakhel
2015-03-04 21:38 ` Paul Bolle
2015-03-04 15:37 ` [PATCH 4/5] dt-bindings: video: Add jz4780-hdmi binding Zubair Lutfullah Kakakhel
2015-03-04 15:37 ` [PATCH 5/5] drm: bridge/dw_hdmi: add jz4780 support Zubair Lutfullah Kakakhel
4 siblings, 1 reply; 8+ messages in thread
From: Zubair Lutfullah Kakakhel @ 2015-03-04 15:37 UTC (permalink / raw)
To: airlied; +Cc: dri-devel, devicetree, linux-kernel, Zubair.Kakakhel
Add drm driver for the Ingenic JZ4780 SoC.
Signed-off-by: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
---
drivers/gpu/drm/Kconfig | 2 +
drivers/gpu/drm/Makefile | 1 +
drivers/gpu/drm/jz4780/Kconfig | 12 +
drivers/gpu/drm/jz4780/Makefile | 10 +
drivers/gpu/drm/jz4780/jz4780_crtc.c | 721 +++++++++++++++++++++++++++++++++++
drivers/gpu/drm/jz4780/jz4780_drv.c | 388 +++++++++++++++++++
drivers/gpu/drm/jz4780/jz4780_drv.h | 84 ++++
drivers/gpu/drm/jz4780/jz4780_regs.h | 696 +++++++++++++++++++++++++++++++++
8 files changed, 1914 insertions(+)
create mode 100644 drivers/gpu/drm/jz4780/Kconfig
create mode 100644 drivers/gpu/drm/jz4780/Makefile
create mode 100644 drivers/gpu/drm/jz4780/jz4780_crtc.c
create mode 100644 drivers/gpu/drm/jz4780/jz4780_drv.c
create mode 100644 drivers/gpu/drm/jz4780/jz4780_drv.h
create mode 100644 drivers/gpu/drm/jz4780/jz4780_regs.h
diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
index 151a050..77edd60 100644
--- a/drivers/gpu/drm/Kconfig
+++ b/drivers/gpu/drm/Kconfig
@@ -208,3 +208,5 @@ source "drivers/gpu/drm/sti/Kconfig"
source "drivers/gpu/drm/amd/amdkfd/Kconfig"
source "drivers/gpu/drm/imx/Kconfig"
+
+source "drivers/gpu/drm/jz4780/Kconfig"
diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile
index 2c239b9..f8403e1 100644
--- a/drivers/gpu/drm/Makefile
+++ b/drivers/gpu/drm/Makefile
@@ -66,6 +66,7 @@ obj-$(CONFIG_DRM_MSM) += msm/
obj-$(CONFIG_DRM_TEGRA) += tegra/
obj-$(CONFIG_DRM_STI) += sti/
obj-$(CONFIG_DRM_IMX) += imx/
+obj-$(CONFIG_DRM_JZ4780) += jz4780/
obj-y += i2c/
obj-y += panel/
obj-y += bridge/
diff --git a/drivers/gpu/drm/jz4780/Kconfig b/drivers/gpu/drm/jz4780/Kconfig
new file mode 100644
index 0000000..ae417d1
--- /dev/null
+++ b/drivers/gpu/drm/jz4780/Kconfig
@@ -0,0 +1,12 @@
+config DRM_JZ4780
+ tristate "DRM Support for Ingenic JZ4780 LCDC Display Controller"
+ depends on DRM && OF
+ select DRM_KMS_HELPER
+ select DRM_KMS_FB_HELPER
+ select DRM_KMS_CMA_HELPER
+ select DRM_GEM_CMA_HELPER
+ select VIDEOMODE_HELPERS
+ help
+ Choose this option if you have an Ingenic JZ4780 SoC with LCDC display
+ controller, for example the MIPS Creator CI20 board
+
diff --git a/drivers/gpu/drm/jz4780/Makefile b/drivers/gpu/drm/jz4780/Makefile
new file mode 100644
index 0000000..f1c9ee5
--- /dev/null
+++ b/drivers/gpu/drm/jz4780/Makefile
@@ -0,0 +1,10 @@
+ccflags-y := -Iinclude/drm
+ifeq (, $(findstring -W,$(EXTRA_CFLAGS)))
+
+endif
+
+jz4780-y := \
+ jz4780_crtc.o \
+ jz4780_drv.o
+
+obj-$(CONFIG_DRM_JZ4780) += jz4780.o
diff --git a/drivers/gpu/drm/jz4780/jz4780_crtc.c b/drivers/gpu/drm/jz4780/jz4780_crtc.c
new file mode 100644
index 0000000..6f48cfa
--- /dev/null
+++ b/drivers/gpu/drm/jz4780/jz4780_crtc.c
@@ -0,0 +1,721 @@
+/*
+ * Copyright (C) 2014 Imagination Technologies
+ * Author: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
+ *
+ * LCDC CRTC driver for Ingenic JZ4780, based on the tilcdc driver
+ *
+ * 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 Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/component.h>
+
+#include "drm_flip_work.h"
+#include <drm/drm_plane_helper.h>
+
+#include "jz4780_drv.h"
+#include "jz4780_regs.h"
+
+/**
+ * @next: physical address of next frame descriptor
+ * @databuf: physical address of buffer
+ * @id: frame ID
+ * @cmd: DMA command and buffer length(in word)
+ * @offsize: DMA off size, in word
+ * @page_width: DMA page width, in word
+ * @cpos: smart LCD mode is commands' number, other is bpp,
+ * premulti and position of foreground 0, 1
+ * @desc_size: alpha and size of foreground 0, 1
+ */
+struct jz4780_framedesc {
+ uint32_t next;
+ uint32_t databuf;
+ uint32_t id;
+ uint32_t cmd;
+ uint32_t offsize;
+ uint32_t page_width;
+ uint32_t cpos;
+ uint32_t desc_size;
+} __packed;
+
+struct jz4780_crtc {
+ struct drm_crtc base;
+ struct device *dev;
+ struct drm_device *drm_dev;
+
+ const struct jz4780_panel_info *info;
+ uint32_t dirty;
+
+ struct drm_pending_vblank_event *event;
+ int dpms;
+ wait_queue_head_t frame_done_wq;
+ bool frame_done;
+
+ /* fb currently set to scanout 0/1: */
+ struct drm_framebuffer *scanout[2];
+
+ /* for deferred fb unref's: */
+ struct drm_flip_work unref_work;
+
+ /* DMA descriptors */
+ struct jz4780_framedesc *framedesc;
+ dma_addr_t framedesc_phys;
+};
+#define to_jz4780_crtc(x) container_of(x, struct jz4780_crtc, base)
+
+static void unref_worker(struct drm_flip_work *work, void *val)
+{
+ struct jz4780_crtc *jz4780_crtc =
+ container_of(work, struct jz4780_crtc, unref_work);
+ struct drm_device *dev = jz4780_crtc->base.dev;
+
+ mutex_lock(&dev->mode_config.mutex);
+ drm_framebuffer_unreference(val);
+ mutex_unlock(&dev->mode_config.mutex);
+}
+
+static void set_scanout(struct drm_crtc *crtc, int n)
+{
+ struct jz4780_crtc *jz4780_crtc = to_jz4780_crtc(crtc);
+ struct drm_device *dev = crtc->dev;
+ struct jz4780_drm_private *priv = dev->dev_private;
+ struct drm_framebuffer *fb = crtc->primary->fb;
+ struct jz4780_framedesc *framedesc = jz4780_crtc->framedesc;
+ struct drm_gem_cma_object *gem;
+ unsigned int depth, bpp;
+ int fg0_line_size;
+ int fg0_frm_size;
+ int height_width;
+
+ gem = drm_fb_cma_get_gem_obj(fb, 0);
+ drm_fb_get_bpp_depth(fb->pixel_format, &depth, &bpp);
+ pm_runtime_get_sync(dev->dev);
+
+ /* lcd display area */
+ fg0_line_size = crtc->mode.hdisplay * bpp >> 3;
+ /* word aligned and in word */
+ fg0_line_size = ALIGN(fg0_line_size, 4) >> 2;
+ fg0_frm_size = fg0_line_size * crtc->mode.vdisplay;
+
+ height_width = (crtc->mode.vdisplay - 1) << LCDC_DESSIZE_HEIGHT_BIT
+ & LCDC_DESSIZE_HEIGHT_MASK;
+ height_width |= ((crtc->mode.hdisplay - 1) << LCDC_DESSIZE_WIDTH_BIT
+ & LCDC_DESSIZE_WIDTH_MASK);
+
+ if (n == 0) {
+ framedesc[0].next = jz4780_crtc->framedesc_phys
+ + sizeof(struct jz4780_framedesc);
+ framedesc[0].databuf = gem->paddr;
+ framedesc[0].id = 0xda0;
+ framedesc[0].cmd = LCDC_CMD_EOFINT | LCDC_CMD_FRM_EN
+ | fg0_frm_size;
+ framedesc[0].offsize = 0;
+ framedesc[0].page_width = 0;
+ framedesc[0].cpos = 0x2d000000;
+ framedesc[0].desc_size = 0xff << LCDC_DESSIZE_ALPHA_BIT;
+ framedesc[0].desc_size |= height_width;
+
+ jz4780_write(dev, LCDC_DA0, framedesc[0].next);
+ } else {
+ framedesc[1].next = jz4780_crtc->framedesc_phys;
+ framedesc[1].id = 0xda1;
+ framedesc[1].databuf = gem->paddr;
+ framedesc[1].offsize = 0;
+ framedesc[1].page_width = 0;
+ framedesc[1].cmd = (LCDC_CMD_EOFINT | LCDC_CMD_FRM_EN)
+ | fg0_frm_size;
+
+ framedesc[1].desc_size = 0xff << LCDC_DESSIZE_ALPHA_BIT;
+ framedesc[1].desc_size |= height_width;
+
+ framedesc[1].cpos = 0x2f000000;
+ jz4780_write(dev, LCDC_DA1, framedesc[1].next);
+ }
+
+ if (jz4780_crtc->scanout[n]) {
+ drm_flip_work_queue(&jz4780_crtc->unref_work,
+ jz4780_crtc->scanout[n]);
+ drm_flip_work_commit(&jz4780_crtc->unref_work, priv->wq);
+ }
+ jz4780_crtc->scanout[n] = crtc->primary->fb;
+ drm_framebuffer_reference(jz4780_crtc->scanout[n]);
+ pm_runtime_put_sync(dev->dev);
+}
+
+static void update_scanout(struct drm_crtc *crtc)
+{
+ struct jz4780_crtc *jz4780_crtc = to_jz4780_crtc(crtc);
+ struct drm_device *dev = crtc->dev;
+
+ if (jz4780_crtc->dpms == DRM_MODE_DPMS_ON) {
+ drm_vblank_get(dev, 0);
+ } else {
+ /* not enabled yet, so update registers immediately: */
+ jz4780_write(dev, LCDC_STATE, 0);
+ set_scanout(crtc, 0);
+ set_scanout(crtc, 1);
+ }
+}
+
+static void start(struct drm_crtc *crtc)
+{
+ struct drm_device *dev = crtc->dev;
+ uint32_t ctrl;
+
+ jz4780_write(dev, LCDC_STATE, 0);
+ jz4780_write(dev, LCDC_OSDS, 0);
+ ctrl = jz4780_read(dev, LCDC_CTRL);
+ ctrl |= LCDC_CTRL_ENA;
+ ctrl &= ~LCDC_CTRL_DIS;
+ jz4780_write(dev, LCDC_CTRL, ctrl);
+
+}
+
+static void stop(struct drm_crtc *crtc)
+{
+ struct drm_device *dev = crtc->dev;
+ int count = 5;
+ uint32_t ctrl;
+
+ ctrl = jz4780_read(dev, LCDC_CTRL);
+ ctrl |= LCDC_CTRL_DIS;
+ jz4780_write(dev, LCDC_CTRL, ctrl);
+ while (!(jz4780_read(dev, LCDC_STATE) & LCDC_STATE_LDD)
+ && count--) {
+ usleep_range(1000, 2000);
+ }
+ if (count >= 0) {
+ ctrl = jz4780_read(dev, LCDC_STATE);
+ ctrl &= ~LCDC_STATE_LDD;
+ jz4780_write(dev, LCDC_STATE, ctrl);
+ } else {
+ DRM_DEBUG_DRIVER("LCDC normal disable state wrong");
+ }
+
+}
+
+static void jz4780_crtc_destroy(struct drm_crtc *crtc)
+{
+ struct jz4780_crtc *jz4780_crtc = to_jz4780_crtc(crtc);
+
+ drm_crtc_cleanup(crtc);
+ drm_flip_work_cleanup(&jz4780_crtc->unref_work);
+
+}
+
+static int jz4780_crtc_page_flip(struct drm_crtc *crtc,
+ struct drm_framebuffer *fb,
+ struct drm_pending_vblank_event *event,
+ uint32_t page_flip_flags)
+{
+ struct jz4780_crtc *jz4780_crtc = to_jz4780_crtc(crtc);
+ struct drm_device *dev = crtc->dev;
+
+ if (jz4780_crtc->event) {
+ dev_err(dev->dev, "already pending page flip!\n");
+ return -EBUSY;
+ }
+
+ crtc->primary->fb = fb;
+ jz4780_crtc->event = event;
+ update_scanout(crtc);
+
+ return 0;
+}
+
+static void jz4780_crtc_dpms(struct drm_crtc *crtc, int mode)
+{
+ struct jz4780_crtc *jz4780_crtc = to_jz4780_crtc(crtc);
+ struct drm_device *dev = crtc->dev;
+
+ /* we really only care about on or off: */
+ if (mode != DRM_MODE_DPMS_ON)
+ mode = DRM_MODE_DPMS_OFF;
+
+ if (jz4780_crtc->dpms == mode)
+ return;
+
+ jz4780_crtc->dpms = mode;
+
+ pm_runtime_get_sync(dev->dev);
+
+ if (mode == DRM_MODE_DPMS_ON) {
+ pm_runtime_forbid(dev->dev);
+ start(crtc);
+ } else {
+ jz4780_crtc->frame_done = false;
+ stop(crtc);
+ pm_runtime_allow(dev->dev);
+ }
+
+ pm_runtime_put_sync(dev->dev);
+}
+
+static bool jz4780_crtc_mode_fixup(struct drm_crtc *crtc,
+ const struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
+{
+ DRM_DEBUG_DRIVER("Mode Fixup not supported by driver yet\n");
+ return true;
+}
+
+static void jz4780_crtc_prepare(struct drm_crtc *crtc)
+{
+
+ jz4780_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
+}
+
+static void jz4780_crtc_commit(struct drm_crtc *crtc)
+{
+
+ jz4780_crtc_dpms(crtc, DRM_MODE_DPMS_ON);
+}
+
+static int jz4780_crtc_mode_set(struct drm_crtc *crtc,
+ struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode,
+ int x, int y,
+ struct drm_framebuffer *old_fb)
+{
+ struct drm_device *dev = crtc->dev;
+ uint32_t hbp, hfp, hsw, vbp, vfp, vsw;
+ int ret;
+ uint32_t pcfg;
+
+ uint16_t hds, vds;
+ uint16_t hde, vde;
+ uint16_t ht, vt;
+ uint32_t cfg, ctrl;
+ unsigned int rgb_ctrl;
+
+ ret = jz4780_crtc_mode_valid(crtc, mode);
+ if (WARN_ON(ret))
+ return ret;
+
+ pm_runtime_get_sync(dev->dev);
+
+ /* Configure timings: */
+ hbp = mode->htotal - mode->hsync_end;
+ hfp = mode->hsync_start - mode->hdisplay;
+ hsw = mode->hsync_end - mode->hsync_start;
+ vbp = mode->vtotal - mode->vsync_end;
+ vfp = mode->vsync_start - mode->vdisplay;
+ vsw = mode->vsync_end - mode->vsync_start;
+
+ hds = hsw + hbp;
+ hde = hds + mode->hdisplay;
+ ht = hde + hfp;
+
+ vds = vsw + vbp;
+ vde = vds + mode->vdisplay;
+ vt = vde + vfp;
+
+ cfg = LCDC_CFG_NEWDES | LCDC_CFG_RECOVER | LCDC_CFG_MODE_TFT_24BIT;
+ cfg |= LCDC_CFG_PSM;
+ cfg |= LCDC_CFG_CLSM;
+ cfg |= LCDC_CFG_SPLM;
+ cfg |= LCDC_CFG_REVM;
+ cfg |= LCDC_CFG_PCP;
+
+ ctrl = LCDC_CTRL_BST_64 | LCDC_CTRL_OFUM;
+
+ /* magic number */
+ pcfg = 0xC0000000 | (511<<18) | (400<<9) | (256<<0);
+
+ jz4780_write(dev, LCDC_VAT, (ht << 16) | vt);
+ jz4780_write(dev, LCDC_DAH, (hds << 16) | hde);
+ jz4780_write(dev, LCDC_DAV, (vds << 16) | vde);
+
+ jz4780_write(dev, LCDC_HSYNC, hsw);
+ jz4780_write(dev, LCDC_VSYNC, vsw);
+
+ jz4780_write(dev, LCDC_CFG, cfg);
+ ctrl |= jz4780_read(dev, LCDC_CTRL);
+ jz4780_write(dev, LCDC_CTRL, ctrl);
+ jz4780_write(dev, LCDC_PCFG, pcfg);
+
+ rgb_ctrl = LCDC_RGBC_RGBFMT | LCDC_RGBC_ODD_RGB |
+ LCDC_RGBC_EVEN_RGB;
+
+ jz4780_write(dev, LCDC_RGBC, rgb_ctrl);
+
+ update_scanout(crtc);
+ jz4780_crtc_update_clk(crtc);
+
+ pm_runtime_put_sync(dev->dev);
+
+ return 0;
+}
+
+static const struct drm_crtc_funcs jz4780_crtc_funcs = {
+ .destroy = jz4780_crtc_destroy,
+ .set_config = drm_crtc_helper_set_config,
+ .page_flip = jz4780_crtc_page_flip,
+};
+
+static const struct drm_crtc_helper_funcs jz4780_crtc_helper_funcs = {
+ .dpms = jz4780_crtc_dpms,
+ .mode_fixup = jz4780_crtc_mode_fixup,
+ .prepare = jz4780_crtc_prepare,
+ .commit = jz4780_crtc_commit,
+ .mode_set = jz4780_crtc_mode_set,
+};
+
+int jz4780_crtc_max_width(struct drm_crtc *crtc)
+{
+ return 2048;
+}
+
+int jz4780_crtc_mode_valid(struct drm_crtc *crtc, struct drm_display_mode *mode)
+{
+ struct jz4780_drm_private *priv = crtc->dev->dev_private;
+ unsigned int bandwidth;
+ uint32_t hbp, hfp, hsw, vbp, vfp, vsw;
+
+ /*
+ * check to see if the width is within the range that
+ * the LCD Controller physically supports
+ */
+ if (mode->hdisplay > 2048)
+ return MODE_VIRTUAL_X;
+
+ /* width must be multiple of 16 */
+ if (mode->hdisplay & 0xf)
+ return MODE_VIRTUAL_X;
+
+ if (mode->vdisplay > 2048)
+ return MODE_VIRTUAL_Y;
+
+ DRM_DEBUG_DRIVER("Processing mode %dx%d@%d with pixel clock %d",
+ mode->hdisplay, mode->vdisplay,
+ drm_mode_vrefresh(mode), mode->clock);
+
+ hbp = mode->htotal - mode->hsync_end;
+ hfp = mode->hsync_start - mode->hdisplay;
+ hsw = mode->hsync_end - mode->hsync_start;
+ vbp = mode->vtotal - mode->vsync_end;
+ vfp = mode->vsync_start - mode->vdisplay;
+ vsw = mode->vsync_end - mode->vsync_start;
+
+ if ((hbp-1) & ~0x3ff) {
+ DRM_DEBUG_DRIVER("Prune: Horizontal Back Porch out of range");
+ return MODE_HBLANK_WIDE;
+ }
+
+ if ((hfp-1) & ~0x3ff) {
+ DRM_DEBUG_DRIVER("Prune: Horizontal Front Porch out of range");
+ return MODE_HBLANK_WIDE;
+ }
+
+ if ((hsw-1) & ~0x3ff) {
+ DRM_DEBUG_DRIVER("Prune: Horizontal Sync Width out of range");
+ return MODE_HSYNC_WIDE;
+ }
+
+ if (vbp & ~0xff) {
+ DRM_DEBUG_DRIVER("Prune: Vertical Back Porch out of range");
+ return MODE_VBLANK_WIDE;
+ }
+
+ if (vfp & ~0xff) {
+ DRM_DEBUG_DRIVER("Prune: Vertical Front Porch out of range");
+ return MODE_VBLANK_WIDE;
+ }
+
+ if ((vsw-1) & ~0x3f) {
+ DRM_DEBUG_DRIVER("Prune: Vertical Sync Width out of range");
+ return MODE_VSYNC_WIDE;
+ }
+
+ /*
+ * some devices have a maximum allowed pixel clock
+ * configured from the DT
+ */
+ if (mode->clock > priv->max_pixelclock) {
+ DRM_DEBUG_DRIVER("Prune: pixel clock too high");
+ return MODE_CLOCK_HIGH;
+ }
+
+ /*
+ * some devices further limit the max horizontal resolution
+ * configured from the DT
+ */
+ if (mode->hdisplay > priv->max_width) {
+ DRM_DEBUG_DRIVER("Prune: Bad width");
+ return MODE_BAD_WIDTH;
+ }
+
+ /* filter out modes that would require too much memory bandwidth: */
+ bandwidth = mode->hdisplay * mode->vdisplay *
+ drm_mode_vrefresh(mode);
+ if (bandwidth > priv->max_bandwidth) {
+ DRM_DEBUG_DRIVER("Prune: exceeds defined bandwidth limit %d",
+ bandwidth);
+ return MODE_BAD;
+ }
+
+ return MODE_OK;
+}
+
+void jz4780_crtc_update_clk(struct drm_crtc *crtc)
+{
+ struct jz4780_crtc *jz4780_crtc = to_jz4780_crtc(crtc);
+ struct drm_device *dev = crtc->dev;
+ struct jz4780_drm_private *priv = dev->dev_private;
+ int dpms = jz4780_crtc->dpms;
+ unsigned int lcd_clk;
+ int ret;
+
+ pm_runtime_get_sync(dev->dev);
+
+ if (dpms == DRM_MODE_DPMS_ON)
+ jz4780_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
+
+ /* in raster mode, minimum divisor is 2: */
+ ret = clk_set_rate(priv->disp_clk, crtc->mode.clock * 1000);
+ if (ret) {
+ dev_err(dev->dev, "failed to set display clock rate to: %d\n",
+ crtc->mode.clock);
+ goto out;
+ }
+
+ lcd_clk = clk_get_rate(priv->clk);
+
+ DRM_DEBUG_DRIVER("lcd_clk=%u, mode clock=%d", lcd_clk,
+ crtc->mode.clock);
+ DRM_DEBUG_DRIVER("fck=%lu, dpll_disp_ck=%lu", clk_get_rate(priv->clk),
+ clk_get_rate(priv->disp_clk));
+
+ if (dpms == DRM_MODE_DPMS_ON)
+ jz4780_crtc_dpms(crtc, DRM_MODE_DPMS_ON);
+
+out:
+ pm_runtime_put_sync(dev->dev);
+}
+
+irqreturn_t jz4780_crtc_irq(struct drm_crtc *crtc)
+{
+ struct drm_device *dev = crtc->dev;
+ unsigned int state;
+ unsigned int tmp;
+
+ state = jz4780_read(dev, LCDC_STATE);
+
+ if (state & LCDC_STATE_EOF) {
+ jz4780_write(dev, LCDC_STATE, state & ~LCDC_STATE_EOF);
+ update_scanout(crtc);
+ }
+
+ if (state & LCDC_STATE_OFU) {
+ DRM_DEBUG_DRIVER("Out FiFo underrun\n");
+ jz4780_write(dev, LCDC_STATE, state & ~LCDC_STATE_OFU);
+ tmp = jz4780_read(dev, LCDC_CTRL);
+ jz4780_write(dev, LCDC_CTRL, tmp & ~LCDC_CTRL_OFUM);
+ update_scanout(crtc);
+ start(crtc);
+ }
+
+ return IRQ_HANDLED;
+}
+
+void jz4780_crtc_cancel_page_flip(struct drm_crtc *crtc, struct drm_file *file)
+{
+ struct jz4780_crtc *jz4780_crtc = to_jz4780_crtc(crtc);
+ struct drm_pending_vblank_event *event;
+ struct drm_device *dev = crtc->dev;
+ unsigned long flags;
+
+ /* Destroy the pending vertical blanking event associated with the
+ * pending page flip, if any, and disable vertical blanking interrupts.
+ */
+ spin_lock_irqsave(&dev->event_lock, flags);
+ event = jz4780_crtc->event;
+ if (event && event->base.file_priv == file) {
+ jz4780_crtc->event = NULL;
+ event->base.destroy(&event->base);
+ drm_vblank_put(dev, 0);
+ }
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+}
+
+struct drm_crtc *jz4780_crtc_create(struct jz4780_crtc *jz4780_crtc)
+{
+
+ struct drm_crtc *crtc;
+ struct device_node *port;
+ struct drm_device *drm_dev = jz4780_crtc->drm_dev;
+ struct device *dev = jz4780_crtc->dev;
+ int ret;
+
+ jz4780_crtc->framedesc = dma_alloc_coherent(dev,
+ sizeof(struct jz4780_framedesc) * 2,
+ &jz4780_crtc->framedesc_phys,
+ GFP_KERNEL | GFP_ATOMIC);
+ if (!jz4780_crtc->framedesc) {
+ dev_err(dev, "desc allocation failed\n");
+ return NULL;
+ }
+
+ crtc = &jz4780_crtc->base;
+
+ jz4780_crtc->dpms = DRM_MODE_DPMS_OFF;
+ init_waitqueue_head(&jz4780_crtc->frame_done_wq);
+
+ drm_flip_work_init(&jz4780_crtc->unref_work,
+ "unref", unref_worker);
+
+
+ ret = drm_crtc_init(drm_dev, crtc, &jz4780_crtc_funcs);
+ if (ret < 0)
+ goto fail;
+
+ drm_crtc_helper_add(crtc, &jz4780_crtc_helper_funcs);
+
+ port = of_get_child_by_name(dev->of_node, "port");
+ if (!port) {
+ DRM_ERROR("no port node found in %s\n",
+ dev->of_node->full_name);
+ goto fail;
+ }
+
+ crtc->port = port;
+
+ return crtc;
+
+fail:
+ jz4780_crtc_destroy(crtc);
+ return NULL;
+}
+
+static const struct of_device_id jz4780_driver_dt_match[] = {
+ { .compatible = "ingenic,jz4780-lcd",
+ .data = NULL },
+ {},
+};
+
+static int jz4780_crtc_bind(struct device *dev, struct device *master,
+ void *data)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ const struct of_device_id *of_id;
+ struct drm_device *drm_dev = data;
+ struct jz4780_drm_private *priv = drm_dev->dev_private;
+ struct resource *res;
+ struct device_node *node = dev->of_node;
+ struct jz4780_crtc *jz4780_crtc;
+
+ jz4780_crtc = devm_kzalloc(dev, sizeof(*jz4780_crtc), GFP_KERNEL);
+ if (!jz4780_crtc)
+ return -ENOMEM;
+
+ jz4780_crtc->dev = dev;
+ jz4780_crtc->drm_dev = drm_dev;
+ dev_set_drvdata(dev, jz4780_crtc);
+
+ of_id = of_match_device(jz4780_driver_dt_match, dev);
+ if (!of_id)
+ return -ENODEV;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ DRM_DEBUG_DRIVER("failed to get memory resource\n");
+ return -EINVAL;
+ }
+
+ priv->mmio = ioremap_nocache(res->start, resource_size(res));
+ if (!priv->mmio) {
+ DRM_DEBUG_DRIVER("failed to ioremap\n");
+ return -ENOMEM;
+ }
+
+ priv->clk = devm_clk_get(dev, "lcd_clk");
+ if (IS_ERR(priv->clk)) {
+ DRM_DEBUG_DRIVER("failed to get lcd clock\n");
+ return -ENODEV;
+ }
+
+ clk_prepare_enable(priv->clk);
+
+ priv->disp_clk = devm_clk_get(dev, "lcd_pixclk");
+ if (IS_ERR(priv->clk)) {
+ DRM_DEBUG_DRIVER("failed to get pixel clock\n");
+ return -ENODEV;
+ }
+
+ clk_prepare_enable(priv->disp_clk);
+
+ if (of_property_read_u32(node, "max-bandwidth", &priv->max_bandwidth))
+ priv->max_bandwidth = JZ4780_DEFAULT_MAX_BANDWIDTH;
+
+ if (of_property_read_u32(node, "max-width", &priv->max_width))
+ priv->max_width = JZ4780_DEFAULT_MAX_WIDTH;
+
+ if (of_property_read_u32(node, "max-pixelclock",
+ &priv->max_pixelclock))
+ priv->max_pixelclock = JZ4780_DEFAULT_MAX_PIXELCLOCK;
+
+ drm_irq_install(drm_dev, platform_get_irq(pdev, 0));
+
+ priv->crtc = jz4780_crtc_create(jz4780_crtc);
+
+ pm_runtime_enable(&pdev->dev);
+
+ return 0;
+}
+
+static void jz4780_crtc_unbind(struct device *dev, struct device *master,
+ void *data)
+{
+ struct jz4780_crtc *jz4780_crtc = dev_get_drvdata(dev);
+
+ pm_runtime_disable(dev);
+ jz4780_crtc_destroy(&jz4780_crtc->base);
+}
+
+static const struct component_ops jz4780_crtc_component_ops = {
+ .bind = jz4780_crtc_bind,
+ .unbind = jz4780_crtc_unbind,
+};
+
+static int jz4780_crtc_probe(struct platform_device *pdev)
+{
+
+ struct device *dev = &pdev->dev;
+
+ if (!dev->of_node) {
+ dev_err(dev, "can't find jz4780 crtc devices\n");
+ return -ENODEV;
+ }
+
+ return component_add(dev, &jz4780_crtc_component_ops);
+}
+
+static int jz4780_crtc_remove(struct platform_device *pdev)
+{
+
+ component_del(&pdev->dev, &jz4780_crtc_component_ops);
+
+ return 0;
+}
+
+struct platform_driver jz4780_crtc_platform_driver = {
+ .probe = jz4780_crtc_probe,
+ .remove = jz4780_crtc_remove,
+ .driver = {
+ .name = "jz4780-lcd-crtc",
+ .owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(jz4780_driver_dt_match),
+ },
+};
+
+module_platform_driver(jz4780_crtc_platform_driver);
+
diff --git a/drivers/gpu/drm/jz4780/jz4780_drv.c b/drivers/gpu/drm/jz4780/jz4780_drv.c
new file mode 100644
index 0000000..7728109
--- /dev/null
+++ b/drivers/gpu/drm/jz4780/jz4780_drv.c
@@ -0,0 +1,388 @@
+/*
+ * Copyright (C) 2015 Imagination Technologies
+ * Author: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
+ *
+ * DRM driver for Ingenic JZ4780
+ *
+ * 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 Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#include <drm/drmP.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_fb_helper.h>
+#include <linux/of_graph.h>
+#include <linux/component.h>
+
+#include "jz4780_drv.h"
+#include "jz4780_regs.h"
+
+static void jz4780_fb_output_poll_changed(struct drm_device *drm_dev)
+{
+
+ struct jz4780_drm_private *priv = drm_dev->dev_private;
+
+ if (priv->fbdev)
+ drm_fbdev_cma_hotplug_event(priv->fbdev);
+}
+
+static const struct drm_mode_config_funcs jz4780_mode_config_funcs = {
+ .fb_create = drm_fb_cma_create,
+ .output_poll_changed = jz4780_fb_output_poll_changed,
+};
+
+void jz4780_drm_mode_config_init(struct drm_device *drm_dev)
+{
+
+ drm_dev->mode_config.min_width = 0;
+ drm_dev->mode_config.min_height = 0;
+ drm_dev->mode_config.max_width = 2048;
+ drm_dev->mode_config.max_height = 2048;
+ drm_dev->mode_config.funcs = &jz4780_mode_config_funcs;
+}
+
+/*
+ * DRM operations:
+ */
+
+static int jz4780_unload(struct drm_device *drm_dev)
+{
+
+ struct jz4780_drm_private *priv = drm_dev->dev_private;
+ struct device *dev = drm_dev->dev;
+
+ drm_kms_helper_poll_fini(drm_dev);
+ drm_mode_config_cleanup(drm_dev);
+ drm_vblank_cleanup(drm_dev);
+
+ component_unbind_all(dev, drm_dev);
+
+ flush_workqueue(priv->wq);
+ destroy_workqueue(priv->wq);
+
+ drm_dev->dev_private = NULL;
+ pm_runtime_disable(drm_dev->dev);
+
+ return 0;
+}
+
+static int jz4780_load(struct drm_device *drm_dev, unsigned long flags)
+{
+ struct device *dev = drm_dev->dev;
+ struct jz4780_drm_private *priv;
+ int ret;
+
+ priv = devm_kzalloc(drm_dev->dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv) {
+ DRM_DEBUG_DRIVER("failed to allocate private data\n");
+ return -ENOMEM;
+ }
+
+ platform_set_drvdata(drm_dev->platformdev, drm_dev);
+ drm_dev->dev_private = priv;
+
+ priv->wq = alloc_ordered_workqueue("jz4780", 0);
+
+ drm_mode_config_init(drm_dev);
+
+ jz4780_drm_mode_config_init(drm_dev);
+
+ /* Try to bind all sub drivers. */
+ ret = component_bind_all(dev, drm_dev);
+ if (ret)
+ goto err_config_cleanup;
+
+ ret = drm_vblank_init(drm_dev, 1);
+ if (ret < 0) {
+ DRM_DEBUG_DRIVER("failed to initialize vblank\n");
+ goto err_vblank_cleanup;
+ }
+
+ priv->fbdev = drm_fbdev_cma_init(drm_dev, 32,
+ drm_dev->mode_config.num_crtc,
+ drm_dev->mode_config.num_connector);
+
+ drm_kms_helper_poll_init(drm_dev);
+
+ return 0;
+
+err_vblank_cleanup:
+ drm_vblank_cleanup(drm_dev);
+ component_unbind_all(dev, drm_dev);
+err_config_cleanup:
+ drm_mode_config_cleanup(drm_dev);
+ return ret;
+}
+
+static void jz4780_preclose(struct drm_device *drm_dev, struct drm_file *file)
+{
+
+ struct jz4780_drm_private *priv = drm_dev->dev_private;
+
+ jz4780_crtc_cancel_page_flip(priv->crtc, file);
+}
+
+static void jz4780_lastclose(struct drm_device *drm_dev)
+{
+
+ struct jz4780_drm_private *priv = drm_dev->dev_private;
+
+ drm_fbdev_cma_restore_mode(priv->fbdev);
+}
+
+static irqreturn_t jz4780_irq(int irq, void *arg)
+{
+
+ struct drm_device *drm_dev = arg;
+ struct jz4780_drm_private *priv = drm_dev->dev_private;
+
+ return jz4780_crtc_irq(priv->crtc);
+}
+
+static void jz4780_enable_disable_vblank(struct drm_device *drm_dev,
+ bool enable)
+{
+
+ u32 tmp;
+
+ /* clear previous EOF flag */
+ tmp = jz4780_read(drm_dev, LCDC_STATE);
+ jz4780_write(drm_dev, LCDC_STATE, tmp & ~LCDC_STATE_EOF);
+
+ /* enable end of frame interrupt */
+ tmp = jz4780_read(drm_dev, LCDC_CTRL);
+ if (enable)
+ jz4780_write(drm_dev, LCDC_CTRL, tmp | LCDC_CTRL_EOFM);
+ else
+ jz4780_write(drm_dev, LCDC_CTRL, tmp & ~LCDC_CTRL_EOFM);
+
+}
+
+static int jz4780_enable_vblank(struct drm_device *drm_dev, int crtc)
+{
+
+ jz4780_enable_disable_vblank(drm_dev, true);
+ return 0;
+}
+
+static void jz4780_disable_vblank(struct drm_device *drm_dev, int crtc)
+{
+
+ jz4780_enable_disable_vblank(drm_dev, false);
+}
+
+static const struct file_operations fops = {
+ .owner = THIS_MODULE,
+ .open = drm_open,
+ .release = drm_release,
+ .unlocked_ioctl = drm_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = drm_compat_ioctl,
+#endif
+ .poll = drm_poll,
+ .read = drm_read,
+ .llseek = no_llseek,
+ .mmap = drm_gem_cma_mmap,
+};
+
+static struct drm_driver jz4780_driver = {
+ .driver_features = DRIVER_HAVE_IRQ | DRIVER_GEM | DRIVER_MODESET,
+ .load = jz4780_load,
+ .unload = jz4780_unload,
+ .preclose = jz4780_preclose,
+ .lastclose = jz4780_lastclose,
+ .set_busid = drm_platform_set_busid,
+ .irq_handler = jz4780_irq,
+ .get_vblank_counter = drm_vblank_count,
+ .enable_vblank = jz4780_enable_vblank,
+ .disable_vblank = jz4780_disable_vblank,
+ .gem_free_object = drm_gem_cma_free_object,
+ .gem_vm_ops = &drm_gem_cma_vm_ops,
+ .dumb_create = drm_gem_cma_dumb_create,
+ .dumb_map_offset = drm_gem_cma_dumb_map_offset,
+ .dumb_destroy = drm_gem_dumb_destroy,
+ .fops = &fops,
+ .name = "jz4780",
+ .desc = "Ingenic LCD Controller DRM",
+ .date = "20140623",
+ .major = 1,
+ .minor = 0,
+};
+
+static int compare_of(struct device *dev, void *data)
+{
+
+ struct device_node *np = data;
+
+ return dev->of_node == np;
+}
+
+static void jz4780_add_endpoints(struct device *dev,
+ struct component_match **match,
+ struct device_node *port)
+{
+
+ struct device_node *ep, *remote;
+
+ for_each_child_of_node(port, ep) {
+ remote = of_graph_get_remote_port_parent(ep);
+ if (!remote || !of_device_is_available(remote)) {
+ of_node_put(remote);
+ continue;
+ } else if (!of_device_is_available(remote->parent)) {
+ dev_warn(dev, "parent device of %s is not available\n",
+ remote->full_name);
+ of_node_put(remote);
+ continue;
+ }
+
+ component_match_add(dev, match, compare_of, remote);
+ of_node_put(remote);
+ }
+}
+
+static int jz4780_drm_bind(struct device *dev)
+{
+
+ struct drm_device *drm;
+ struct platform_device *pdev = dev_get_drvdata(dev);
+ int ret;
+
+ drm = drm_dev_alloc(&jz4780_driver, dev);
+ if (!drm)
+ return -ENOMEM;
+
+ ret = drm_dev_set_unique(drm, "%s", dev_name(dev));
+ if (ret)
+ goto err_free;
+
+ drm->platformdev = pdev;
+
+ ret = drm_dev_register(drm, 0);
+ if (ret)
+ goto err_free;
+
+ dev_set_drvdata(dev, drm);
+
+ return 0;
+
+err_free:
+ drm_dev_unref(drm);
+ return ret;
+}
+
+static void jz4780_drm_unbind(struct device *dev)
+{
+
+ struct drm_device *drm = dev_get_drvdata(dev);
+
+ drm_dev_unregister(drm);
+ drm_dev_unref(drm);
+ dev_set_drvdata(dev, NULL);
+}
+
+static const struct component_master_ops jz4780_drm_ops = {
+ .bind = jz4780_drm_bind,
+ .unbind = jz4780_drm_unbind,
+};
+
+/*
+ * Platform driver:
+ */
+static int jz4780_pdev_probe(struct platform_device *pdev)
+{
+
+ struct device *dev = &pdev->dev;
+ struct component_match *match = NULL;
+ struct device_node *np = dev->of_node;
+ struct device_node *port;
+ int i;
+
+ if (!np)
+ return -ENODEV;
+
+ /*
+ * Bind the crtc ports first, so that
+ * drm_of_find_possible_crtcs called from encoder .bind callbacks
+ * works as expected.
+ */
+ for (i = 0;; i++) {
+ port = of_parse_phandle(np, "ports", i);
+ if (!port)
+ break;
+
+ if (!of_device_is_available(port->parent)) {
+ of_node_put(port);
+ continue;
+ }
+
+ component_match_add(dev, &match, compare_of, port->parent);
+ of_node_put(port);
+ }
+
+ if (i == 0) {
+ dev_err(dev, "missing 'ports' property\n");
+ return -ENODEV;
+ }
+
+ if (!match) {
+ dev_err(dev, "No available crtc found for display-subsystem.\n");
+ return -ENODEV;
+ }
+ /*
+ * For each bound crtc, bind the encoders attached to its
+ * remote endpoint.
+ */
+ for (i = 0;; i++) {
+ port = of_parse_phandle(np, "ports", i);
+ if (!port)
+ break;
+
+ if (!of_device_is_available(port->parent)) {
+ of_node_put(port);
+ continue;
+ }
+
+ jz4780_add_endpoints(dev, &match, port);
+ of_node_put(port);
+ }
+
+ dev_set_drvdata(dev, pdev);
+ return component_master_add_with_match(dev, &jz4780_drm_ops, match);
+}
+
+static int jz4780_pdev_remove(struct platform_device *pdev)
+{
+
+ component_master_del(&pdev->dev, &jz4780_drm_ops);
+ return 0;
+}
+
+static const struct of_device_id jz4780_of_match[] = {
+ { .compatible = "ingenic,jz4780-display-subsystem", },
+ { },
+};
+MODULE_DEVICE_TABLE(of, jz4780_of_match);
+
+static struct platform_driver jz4780_platform_driver = {
+ .probe = jz4780_pdev_probe,
+ .remove = jz4780_pdev_remove,
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "ingenic-jz4780-drm",
+ .of_match_table = jz4780_of_match,
+ },
+};
+
+module_platform_driver(jz4780_platform_driver);
+
+MODULE_AUTHOR("Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>");
+MODULE_DESCRIPTION("Ingenic JZ4780 LCD/HDMI Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/gpu/drm/jz4780/jz4780_drv.h b/drivers/gpu/drm/jz4780/jz4780_drv.h
new file mode 100644
index 0000000..981ce83
--- /dev/null
+++ b/drivers/gpu/drm/jz4780/jz4780_drv.h
@@ -0,0 +1,84 @@
+/*
+ * Copyright (C) 2014 Imagination Technologies
+ * Author: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.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 Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __jz4780_DRV_H__
+#define __jz4780_DRV_H__
+
+#include <linux/clk.h>
+#include <linux/cpufreq.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/pm.h>
+#include <linux/pm_runtime.h>
+#include <linux/slab.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/list.h>
+
+#include <drm/drmP.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_gem_cma_helper.h>
+#include <drm/drm_fb_cma_helper.h>
+
+/* Defaulting to maximum capability of JZ4780 */
+#define JZ4780_DEFAULT_MAX_PIXELCLOCK 200000
+#define JZ4780_DEFAULT_MAX_WIDTH 2048
+#define JZ4780_DEFAULT_MAX_BANDWIDTH (1920*1080*60)
+
+
+struct jz4780_drm_private {
+ void __iomem *mmio;
+
+ struct clk *disp_clk; /* display dpll */
+ struct clk *clk; /* functional clock */
+ int rev; /* IP revision */
+
+ /* don't attempt resolutions w/ higher W * H * Hz: */
+ uint32_t max_bandwidth;
+ /*
+ * Pixel Clock will be restricted to some value as
+ * defined in the device datasheet measured in KHz
+ */
+ uint32_t max_pixelclock;
+ /*
+ * Max allowable width is limited on a per device basis
+ * measured in pixels
+ */
+ uint32_t max_width;
+
+ struct workqueue_struct *wq;
+
+ struct drm_fbdev_cma *fbdev;
+
+ struct drm_crtc *crtc;
+
+ unsigned int num_encoders;
+ struct drm_encoder *encoders[8];
+
+ unsigned int num_connectors;
+ struct drm_connector *connectors[8];
+};
+
+void jz4780_crtc_cancel_page_flip(struct drm_crtc *crtc,
+ struct drm_file *file);
+irqreturn_t jz4780_crtc_irq(struct drm_crtc *crtc);
+void jz4780_crtc_update_clk(struct drm_crtc *crtc);
+int jz4780_crtc_mode_valid(struct drm_crtc *crtc,
+ struct drm_display_mode *mode);
+int jz4780_crtc_max_width(struct drm_crtc *crtc);
+
+#endif /* __jz4780_DRV_H__ */
diff --git a/drivers/gpu/drm/jz4780/jz4780_regs.h b/drivers/gpu/drm/jz4780/jz4780_regs.h
new file mode 100644
index 0000000..20f7435
--- /dev/null
+++ b/drivers/gpu/drm/jz4780/jz4780_regs.h
@@ -0,0 +1,696 @@
+/*
+ * Copyright (c) 2014 Imagination Technologies
+ * Author: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.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 Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __JZ4780_REGS_H__
+#define __JZ4780_REGS_H__
+
+/* LCDC register definitions */
+
+#include <linux/bitops.h>
+
+#include "jz4780_drv.h"
+
+/* Register Map Of LCDC */
+#define LCDC_CFG 0x00
+#define LCDC_CTRL 0x30
+#define LCDC_STATE 0x34
+#define LCDC_OSDC 0x100
+#define LCDC_OSDCTRL 0x104
+#define LCDC_OSDS 0x108
+#define LCDC_BGC0 0x10c
+#define LCDC_BGC1 0x2c4
+#define LCDC_KEY0 0x110
+#define LCDC_KEY1 0x114
+#define LCDC_ALPHA 0x118
+#define LCDC_IPUR 0x11c
+#define LCDC_RGBC 0x90
+#define LCDC_VAT 0x0c
+#define LCDC_DAH 0x10
+#define LCDC_DAV 0x14
+#define LCDC_XYP0 0x120
+#define LCDC_XYP1 0x124
+#define LCDC_SIZE0 0x128
+#define LCDC_SIZE1 0x12c
+#define LCDC_VSYNC 0x04
+#define LCDC_HSYNC 0x08
+#define LCDC_PS 0x18
+#define LCDC_CLS 0x1c
+#define LCDC_SPL 0x20
+#define LCDC_REV 0x24
+#define LCDC_IID 0x38
+#define LCDC_DA0 0x40
+#define LCDC_SA0 0x44
+#define LCDC_FID0 0x48
+#define LCDC_CMD0 0x4c
+#define LCDC_OFFS0 0x60
+#define LCDC_PW0 0x64
+#define LCDC_CNUM0 0x68
+#define LCDC_CPOS0 0x68
+#define LCDC_DESSIZE0 0x6c
+#define LCDC_DA1 0x50
+#define LCDC_SA1 0x54
+#define LCDC_FID1 0x58
+#define LCDC_CMD1 0x5c
+#define LCDC_OFFS1 0x70
+#define LCDC_PW1 0x74
+#define LCDC_CNUM1 0x78
+#define LCDC_CPOS1 0x78
+#define LCDC_DESSIZE1 0x7c
+#define LCDC_PCFG 0x2c0
+#define LCDC_DUAL_CTRL 0x2c8
+#define LCDC_ENH_CFG 0x400
+#define LCDC_ENH_CSCCFG 0x404
+#define LCDC_ENH_LUMACFG 0x408
+#define LCDC_ENH_CHROCFG0 0x40c
+#define LCDC_ENH_CHROCFG1 0x410
+#define LCDC_ENH_DITHERCFG 0x414
+#define LCDC_ENH_STATUS 0x418
+#define LCDC_ENH_GAMMA 0x800
+#define LCDC_ENH_VEE 0x1000
+
+/* LCD Configure Register */
+#define LCDC_CFG_LCDPIN_BIT 31
+#define LCDC_CFG_LCDPIN_MASK (0x1 << LCDC_CFG_LCDPIN_BIT)
+#define LCDC_CFG_LCDPIN_LCD (0x0 << LCDC_CFG_LCDPIN_BIT)
+#define LCDC_CFG_LCDPIN_SLCD (0x1 << LCDC_CFG_LCDPIN_BIT)
+#define LCDC_CFG_TVEPEH BIT(30)
+#define LCDC_CFG_NEWDES BIT(28)
+#define LCDC_CFG_PALBP BIT(27)
+#define LCDC_CFG_TVEN BIT(26)
+#define LCDC_CFG_RECOVER BIT(25)
+
+#define LCDC_CFG_PSM BIT(23)
+#define LCDC_CFG_CLSM BIT(22)
+#define LCDC_CFG_SPLM BIT(21)
+#define LCDC_CFG_REVM BIT(20)
+#define LCDC_CFG_HSYNM BIT(19)
+#define LCDC_CFG_PCLKM BIT(18)
+#define LCDC_CFG_INVDAT BIT(17)
+#define LCDC_CFG_SYNDIR_IN BIT(16)
+#define LCDC_CFG_PSP BIT(15)
+#define LCDC_CFG_CLSP BIT(14)
+#define LCDC_CFG_SPLP BIT(13)
+#define LCDC_CFG_REVP BIT(12)
+#define LCDC_CFG_HSP BIT(11)
+#define LCDC_CFG_PCP BIT(10)
+#define LCDC_CFG_DEP BIT(9)
+#define LCDC_CFG_VSP BIT(8)
+#define LCDC_CFG_MODE_TFT_18BIT BIT(7)
+#define LCDC_CFG_MODE_TFT_16BIT (0 << 7)
+#define LCDC_CFG_MODE_TFT_24BIT BIT(6)
+
+#define LCDC_CFG_MODE_BIT 0
+#define LCDC_CFG_MODE_MASK (0x0f << LCDC_CFG_MODE_BIT)
+#define LCDC_CFG_MODE_GENERIC_TFT (0 << LCDC_CFG_MODE_BIT)
+#define LCDC_CFG_MODE_SPECIAL_TFT_1 (1 << LCDC_CFG_MODE_BIT)
+#define LCDC_CFG_MODE_SPECIAL_TFT_2 (2 << LCDC_CFG_MODE_BIT)
+#define LCDC_CFG_MODE_SPECIAL_TFT_3 (3 << LCDC_CFG_MODE_BIT)
+#define LCDC_CFG_MODE_NONINTER_CCIR656 (4 << LCDC_CFG_MODE_BIT)
+#define LCDC_CFG_MODE_INTER_CCIR656 (6 << LCDC_CFG_MODE_BIT)
+#define LCDC_CFG_MODE_SERIAL_TFT (12 << LCDC_CFG_MODE_BIT)
+#define LCDC_CFG_MODE_LCM (13 << LCDC_CFG_MODE_BIT)
+
+/* LCD Control Register */
+#define LCDC_CTRL_PINMD BIT(31)
+#define LCDC_CTRL_BST_BIT 28
+#define LCDC_CTRL_BST_MASK (0x7 << LCDC_CTRL_BST_BIT)
+#define LCDC_CTRL_BST_4 (0 << LCDC_CTRL_BST_BIT)
+#define LCDC_CTRL_BST_8 (1 << LCDC_CTRL_BST_BIT)
+#define LCDC_CTRL_BST_16 (2 << LCDC_CTRL_BST_BIT)
+#define LCDC_CTRL_BST_32 (3 << LCDC_CTRL_BST_BIT)
+#define LCDC_CTRL_BST_64 (4 << LCDC_CTRL_BST_BIT)
+#define LCDC_CTRL_RGB565 (0 << 27)
+#define LCDC_CTRL_RGB555 BIT(27)
+#define LCDC_CTRL_OFUP BIT(26)
+#define LCDC_CTRL_PDD_BIT 16
+#define LCDC_CTRL_PDD_MASK (0xff << LCDC_CTRL_PDD_BIT)
+
+#define LCDC_CTRL_DACTE BIT(14)
+#define LCDC_CTRL_EOFM BIT(13)
+#define LCDC_CTRL_SOFM BIT(12)
+#define LCDC_CTRL_OFUM BIT(11)
+#define LCDC_CTRL_IFUM0 BIT(10)
+#define LCDC_CTRL_IFUM1 BIT(9)
+#define LCDC_CTRL_LDDM BIT(8)
+#define LCDC_CTRL_QDM BIT(7)
+#define LCDC_CTRL_BEDN BIT(6)
+#define LCDC_CTRL_PEDN BIT(5)
+#define LCDC_CTRL_DIS BIT(4)
+#define LCDC_CTRL_ENA BIT(3)
+#define LCDC_CTRL_BPP_BIT 0
+#define LCDC_CTRL_BPP_MASK (0x07 << LCDC_CTRL_BPP_BIT)
+#define LCDC_CTRL_BPP_1 (0 << LCDC_CTRL_BPP_BIT)
+#define LCDC_CTRL_BPP_2 (1 << LCDC_CTRL_BPP_BIT)
+#define LCDC_CTRL_BPP_4 (2 << LCDC_CTRL_BPP_BIT)
+#define LCDC_CTRL_BPP_8 (3 << LCDC_CTRL_BPP_BIT)
+#define LCDC_CTRL_BPP_16 (4 << LCDC_CTRL_BPP_BIT)
+#define LCDC_CTRL_BPP_18_24 (5 << LCDC_CTRL_BPP_BIT)
+#define LCDC_CTRL_BPP_CMPS_24 (6 << LCDC_CTRL_BPP_BIT)
+#define LCDC_CTRL_BPP_30 (7 << LCDC_CTRL_BPP_BIT)
+
+#define LCD_TYPE_GENERIC_24_BIT (0 | 1 << 6)
+
+/* LCD Status Register */
+#define LCDC_STATE_QD BIT(7)
+#define LCDC_STATE_EOF BIT(5)
+#define LCDC_STATE_SOF BIT(4)
+#define LCDC_STATE_OFU BIT(3)
+#define LCDC_STATE_IFU0 BIT(2)
+#define LCDC_STATE_IFU1 BIT(1)
+#define LCDC_STATE_LDD BIT(0)
+
+/* OSD Configure Register */
+#define LCDC_OSDC_PREMULTI1 BIT(23)
+#define LCDC_OSDC_COEF_SLE1_BIT 21
+#define LCDC_OSDC_COEF_SLE1_MASK (0x03 << LCDC_OSDC_COEF_SLE1_BIT)
+#define LCDC_OSDC_COEF_SLE1_0 (0 << LCDC_OSDC_COEF_SLE1_BIT)
+#define LCDC_OSDC_COEF_SLE1_1 (1 << LCDC_OSDC_COEF_SLE1_BIT)
+#define LCDC_OSDC_COEF_SLE1_2 (2 << LCDC_OSDC_COEF_SLE1_BIT)
+#define LCDC_OSDC_COEF_SLE1_3 (3 << LCDC_OSDC_COEF_SLE1_BIT)
+
+#define LCDC_OSDC_PREMULTI0 BIT(20)
+#define LCDC_OSDC_COEF_SLE0_BIT 18
+#define LCDC_OSDC_COEF_SLE0_MASK (0x03 << LCDC_OSDC_COEF_SLE0_BIT)
+#define LCDC_OSDC_COEF_SLE0_0 (0 << LCDC_OSDC_COEF_SLE0_BIT)
+#define LCDC_OSDC_COEF_SLE0_1 (1 << LCDC_OSDC_COEF_SLE0_BIT)
+#define LCDC_OSDC_COEF_SLE0_2 (2 << LCDC_OSDC_COEF_SLE0_BIT)
+#define LCDC_OSDC_COEF_SLE0_3 (3 << LCDC_OSDC_COEF_SLE0_BIT)
+#define LCDC_OSDC_ALPHAMD1 BIT(17)
+
+#define LCDC_OSDC_SOFM1 BIT(15)
+#define LCDC_OSDC_EOFM1 BIT(14)
+#define LCDC_OSDC_SOFM0 BIT(11)
+#define LCDC_OSDC_EOFM0 BIT(10)
+#define LCDC_OSDC_DENDM BIT(9)
+#define LCDC_OSDC_F1EN BIT(4)
+#define LCDC_OSDC_F0EN BIT(3)
+#define LCDC_OSDC_ALPHAEN BIT(2)
+#define LCDC_OSDC_ALPHAMD0 BIT(1)
+#define LCDC_OSDC_OSDEN BIT(0)
+
+/* OSD Control Register */
+#define LCDC_OSDCTRL_IPU_CLKEN BIT(15)
+#define LCDC_OSDCTRL_RGB0_RGB565 (0 << 5)
+#define LCDC_OSDCTRL_RGB0_RGB555 BIT(5)
+#define LCDC_OSDCTRL_RGB1_RGB565 (0 << 4)
+#define LCDC_OSDCTRL_RGB1_RGB555 BIT(4)
+
+#define LCDC_OSDCTRL_BPP_BIT 0
+#define LCDC_OSDCTRL_BPP_MASK (0x7 << LCDC_OSDCTRL_BPP_BIT)
+#define LCDC_OSDCTRL_BPP_15_16 (4 << LCDC_OSDCTRL_BPP_BIT)
+#define LCDC_OSDCTRL_BPP_18_24 (5 << LCDC_OSDCTRL_BPP_BIT)
+#define LCDC_OSDCTRL_BPP_CMPS_24 (6 << LCDC_OSDCTRL_BPP_BIT)
+#define LCDC_OSDCTRL_BPP_30 (7 << LCDC_OSDCTRL_BPP_BIT)
+
+/* OSD State Register */
+#define LCDC_OSDS_SOF1 BIT(15)
+#define LCDC_OSDS_EOF1 BIT(14)
+#define LCDC_OSDS_SOF0 BIT(11)
+#define LCDC_OSDS_EOF0 BIT(10)
+#define LCDC_OSDS_DEND BIT(8)
+
+/* Background 0 or Background 1 Color Register */
+#define LCDC_BGC_RED_OFFSET 16
+#define LCDC_BGC_RED_MASK (0xFF << LCDC_BGC_RED_OFFSET)
+#define LCDC_BGC_GREEN_OFFSET 8
+#define LCDC_BGC_GREEN_MASK (0xFF << LCDC_BGC_GREEN_OFFSET)
+#define LCDC_BGC_BLUE_OFFSET 0
+#define LCDC_BGC_BLUE_MASK (0xFF << LCDC_BGC_BLUE_OFFSET)
+
+/* Foreground 0 or Foreground 1 Color Key Register */
+#define LCDC_KEY_KEYEN BIT(31)
+#define LCDC_KEY_KEYMD BIT(30)
+#define LCDC_KEY_RED_OFFSET 16
+#define LCDC_KEY_RED_MASK (0xFF << LCDC_KEY_RED_OFFSET)
+#define LCDC_KEY_GREEN_OFFSET 8
+#define LCDC_KEY_GREEN_MASK (0xFF << LCDC_KEY_GREEN_OFFSET)
+#define LCDC_KEY_BLUE_OFFSET 0
+#define LCDC_KEY_BLUE_MASK (0xFF << LCDC_KEY_BLUE_OFFSET)
+#define LCDC_KEY_MASK (LCDC_KEY_RED_MASK | \
+ | LCDC_KEY_GREEN_MASK \
+ | LCDC_KEY_BLUE_MASK)
+
+/* ALPHA Register */
+#define LCDC_ALPHA1_OFFSET 8
+#define LCDC_ALPHA1_MASK (0xFF << LCDC_ALPHA1_OFFSET)
+#define LCDC_ALPHA0_OFFSET 0
+#define LCDC_ALPHA0_MASK (0xFF << LCDC_ALPHA0_OFFSET)
+
+/* IPU Restart Register */
+#define LCDC_IPUR_IPUREN BIT(31)
+#define LCDC_IPUR_IPURMASK 0xFFFFFF
+
+/* RGB Control Register */
+#define LCDC_RGBC_RGBDM BIT(15)
+#define LCDC_RGBC_DMM BIT(14)
+#define LCDC_RGBC_422 BIT(8)
+#define LCDC_RGBC_RGBFMT BIT(7)
+#define LCDC_RGBC_ODDRGB_BIT 4
+#define LCDC_RGBC_ODDRGB_MASK (0x7 << LCDC_RGBC_ODDRGB_BIT)
+#define LCDC_RGBC_ODD_RGB (0 << LCDC_RGBC_ODDRGB_BIT) /* RGB */
+#define LCDC_RGBC_ODD_RBG (1 << LCDC_RGBC_ODDRGB_BIT) /* RBG */
+#define LCDC_RGBC_ODD_GRB (2 << LCDC_RGBC_ODDRGB_BIT) /* GRB */
+#define LCDC_RGBC_ODD_GBR (3 << LCDC_RGBC_ODDRGB_BIT) /* GBR */
+#define LCDC_RGBC_ODD_BRG (4 << LCDC_RGBC_ODDRGB_BIT) /* BRG */
+#define LCDC_RGBC_ODD_BGR (5 << LCDC_RGBC_ODDRGB_BIT) /* BGR */
+
+#define LCDC_RGBC_EVENRGB_BIT 0
+#define LCDC_RGBC_EVENRGB_MASK (0x7 << LCDC_RGBC_EVENRGB_BIT)
+#define LCDC_RGBC_EVEN_RGB 0 /* RGB */
+#define LCDC_RGBC_EVEN_RBG 1 /* RBG */
+#define LCDC_RGBC_EVEN_GRB 2 /* GRB */
+#define LCDC_RGBC_EVEN_GBR 3 /* GBR */
+#define LCDC_RGBC_EVEN_BRG 4 /* BRG */
+#define LCDC_RGBC_EVEN_BGR 5 /* BGR */
+
+/* Vertical Synchronize Register */
+#define LCDC_VSYNC_VPS_BIT 16
+#define LCDC_VSYNC_VPS_MASK (0xfff << LCDC_VSYNC_VPS_BIT)
+#define LCDC_VSYNC_VPE_BIT 0
+#define LCDC_VSYNC_VPE_MASK (0xfff << LCDC_VSYNC_VPE_BIT)
+
+/* Horizontal Synchronize Register */
+#define LCDC_HSYNC_HPS_BIT 16
+#define LCDC_HSYNC_HPS_MASK (0xfff << LCDC_HSYNC_HPS_BIT)
+#define LCDC_HSYNC_HPE_BIT 0
+#define LCDC_HSYNC_HPE_MASK (0xfff << LCDC_HSYNC_HPE_BIT)
+
+/* Virtual Area Setting Register */
+#define LCDC_VAT_HT_BIT 16
+#define LCDC_VAT_HT_MASK (0xfff << LCDC_VAT_HT_BIT)
+#define LCDC_VAT_VT_BIT 0
+#define LCDC_VAT_VT_MASK (0xfff << LCDC_VAT_VT_BIT)
+
+/* Display Area Horizontal Start/End Point Register */
+#define LCDC_DAH_HDS_BIT 16
+#define LCDC_DAH_HDS_MASK (0xfff << LCDC_DAH_HDS_BIT)
+#define LCDC_DAH_HDE_BIT 0
+#define LCDC_DAH_HDE_MASK (0xfff << LCDC_DAH_HDE_BIT)
+
+/* Display Area Vertical Start/End Point Register */
+#define LCDC_DAV_VDS_BIT 16
+#define LCDC_DAV_VDS_MASK (0xfff << LCDC_DAV_VDS_BIT)
+#define LCDC_DAV_VDE_BIT 0
+#define LCDC_DAV_VDE_MASK (0xfff << LCDC_DAV_VDE_BIT)
+
+/* Foreground 0 or Foreground 1 XY Position Register */
+#define LCDC_XYP_YPOS_BIT 16
+#define LCDC_XYP_YPOS_MASK (0xfff << LCDC_XYP_YPOS_BIT)
+#define LCDC_XYP_XPOS_BIT 0
+#define LCDC_XYP_XPOS_MASK (0xfff << LCDC_XYP_XPOS_BIT)
+
+/* Foreground 0 or Foreground 1 Size Register */
+#define LCDC_SIZE_HEIGHT_BIT 16
+#define LCDC_SIZE_HEIGHT_MASK (0xfff << LCDC_SIZE_HEIGHT_BIT)
+#define LCDC_SIZE_WIDTH_BIT 0
+#define LCDC_SIZE_WIDTH_MASK (0xfff << LCDC_SIZE_WIDTH_BIT)
+
+/* PS Signal Setting */
+#define LCDC_PS_PSS_BIT 16
+#define LCDC_PS_PSS_MASK (0xfff << LCDC_PS_PSS_BIT)
+#define LCDC_PS_PSE_BIT 0
+#define LCDC_PS_PSE_MASK (0xfff << LCDC_PS_PSE_BIT)
+
+/* CLS Signal Setting */
+#define LCDC_CLS_CLSS_BIT 16
+#define LCDC_CLS_CLSS_MASK (0xfff << LCDC_CLS_CLSS_BIT)
+#define LCDC_CLS_CLSE_BIT 0
+#define LCDC_CLS_CLSE_MASK (0xfff << LCDC_CLS_CLSE_BIT)
+
+/* SPL Signal Setting */
+#define LCDC_SPL_SPLS_BIT 16
+#define LCDC_SPL_SPLS_MASK (0xfff << LCDC_SPL_SPLS_BIT)
+#define LCDC_SPL_SPLE_BIT 0
+#define LCDC_SPL_SPLE_MASK (0xfff << LCDC_SPL_SPLE_BIT)
+
+/* REV Signal Setting */
+#define LCDC_REV_REVS_BIT 16
+#define LCDC_REV_REVS_MASK (0xfff << LCDC_REV_REVS_BIT)
+
+/* DMA Command 0 or 1 Register */
+#define LCDC_CMD_SOFINT BIT(31)
+#define LCDC_CMD_EOFINT BIT(30)
+#define LCDC_CMD_CMD BIT(29)
+#define LCDC_CMD_PAL BIT(28)
+#define LCDC_CMD_COMPEN BIT(27)
+#define LCDC_CMD_FRM_EN BIT(26)
+#define LCDC_CMD_FIELD_SEL BIT(25)
+#define LCDC_CMD_16X16BLOCK BIT(24)
+#define LCDC_CMD_LEN_BIT 0
+#define LCDC_CMD_LEN_MASK (0xffffff << LCDC_CMD_LEN_BIT)
+
+/* DMA Offsize Register 0,1 */
+#define LCDC_OFFS_BIT 0
+#define LCDC_OFFS_OFFSIZE_MASK (0xffffff << LCDC_OFFS_BIT)
+
+/* DMA Page Width Register 0,1 */
+#define LCDC_PW_BIT 0
+#define LCDC_PW_PAGEWIDTH_MASK (0xffffff << LCDC_PW_BIT)
+
+/* DMA Command Counter Register 0,1 */
+#define LCDC_CNUM_BIT 0
+#define LCDC_CNUM_CNUM_MASK (0xff << LCDC_CNUM_BIT)
+
+/* DMA Command Counter Register */
+#define LCDC_CPOS_ALPHAMD1 BIT(31)
+#define LCDC_CPOS_RGB_RGB565 (0 << 30)
+#define LCDC_CPOS_RGB_RGB555 BIT(30)
+
+#define LCDC_CPOS_BPP_BIT 27
+#define LCDC_CPOS_BPP_MASK (0x07 << LCDC_CPOS_BPP_BIT)
+#define LCDC_CPOS_BPP_16 (4 << LCDC_CPOS_BPP_BIT)
+#define LCDC_CPOS_BPP_18_24 (5 << LCDC_CPOS_BPP_BIT)
+#define LCDC_CPOS_BPP_CMPS_24 (6 << LCDC_CPOS_BPP_BIT)
+#define LCDC_CPOS_BPP_30 (7 << LCDC_CPOS_BPP_BIT)
+
+#define LCDC_CPOS_PREMULTI BIT(26)
+#define LCDC_CPOS_COEF_SLE_BIT 24
+#define LCDC_CPOS_COEF_SLE_MASK (0x3 << LCDC_CPOS_COEF_SLE_BIT)
+#define LCDC_CPOS_COEF_SLE_0 (0 << LCDC_CPOS_COEF_SLE_BIT)
+#define LCDC_CPOS_COEF_SLE_1 (1 << LCDC_CPOS_COEF_SLE_BIT)
+#define LCDC_CPOS_COEF_SLE_2 (2 << LCDC_CPOS_COEF_SLE_BIT)
+#define LCDC_CPOS_COEF_SLE_3 (3 << LCDC_CPOS_COEF_SLE_BIT)
+
+#define LCDC_CPOS_YPOS_BIT 12
+#define LCDC_CPOS_YPOS_MASK (0xfff << LCDC_CPOS_YPOS_BIT)
+#define LCDC_CPOS_XPOS_BIT 0
+#define LCDC_CPOS_XPOS_MASK (0xfff << LCDC_CPOS_XPOS_BIT)
+
+/* Foreground 0,1 Size Register */
+#define LCDC_DESSIZE_ALPHA_BIT 24
+#define LCDC_DESSIZE_ALPHA_MASK (0xff << LCDC_DESSIZE_ALPHA_BIT)
+#define LCDC_DESSIZE_HEIGHT_BIT 12
+#define LCDC_DESSIZE_HEIGHT_MASK (0xfff << LCDC_DESSIZE_HEIGHT_BIT)
+#define LCDC_DESSIZE_WIDTH_BIT 0
+#define LCDC_DESSIZE_WIDTH_MASK (0xfff << LCDC_DESSIZE_WIDTH_BIT)
+
+/* Priority level threshold configure Register */
+#define LCDC_PCFG_LCDC_PRI_MD BIT(31)
+
+#define LCDC_PCFG_HP_BST_BIT 28
+#define LCDC_PCFG_HP_BST_MASK (0x7 << LCDC_PCFG_HP_BST_BIT)
+#define LCDC_PCFG_HP_BST_4 (0 << LCDC_PCFG_HP_BST_BIT)
+#define LCDC_PCFG_HP_BST_8 (1 << LCDC_PCFG_HP_BST_BIT)
+#define LCDC_PCFG_HP_BST_16 (2 << LCDC_PCFG_HP_BST_BIT)
+#define LCDC_PCFG_HP_BST_32 (3 << LCDC_PCFG_HP_BST_BIT)
+#define LCDC_PCFG_HP_BST_C16 (5 << LCDC_PCFG_HP_BST_BIT)
+#define LCDC_PCFG_HP_BST_64 (4 << LCDC_PCFG_HP_BST_BIT)
+#define LCDC_PCFG_HP_BST_DIS (7 << LCDC_PCFG_HP_BST_BIT)
+
+#define LCDC_PCFG_PCFG2_BIT 18
+#define LCDC_PCFG_PCFG2_MASK (0x1ff << LCDC_PCFG_PCFG2_BIT)
+#define LCDC_PCFG_PCFG1_BIT 9
+#define LCDC_PCFG_PCFG1_MASK (0x1ff << LCDC_PCFG_PCFG1_BIT)
+#define LCDC_PCFG_PCFG0_BIT 0
+#define LCDC_PCFG_PCFG0_MASK (0x1ff << LCDC_PCFG_PCFG0_BIT)
+
+/* Dual LCDC Channel Control register */
+/*
+ * Select which IPU is able to write back, this field is just
+ * available in lcdc1. 0:ipu1; 1:ipu0
+ */
+#define LCDC_DUAL_CTRL_IPU_WR_SEL BIT(8)
+/*
+ * Select which controller output to the tft/slcd panel, this field is just
+ * available in lcdc1. 0:lcdc1; 1:lcdc0
+ */
+#define LCDC_DUAL_CTRL_TFT_SEL BIT(6)
+/*
+ * 1: fix the priority of ipu0/1 in lcd internal arbiter;
+ * 0: use priority of ipu0/1 generated by lcd in lcd internal arbiter
+ */
+#define LCDC_DUAL_CTRL_PRI_IPU_EN BIT(5)
+#define LCDC_DUAL_CTRL_PRI_IPU_BIT 3
+#define LCDC_DUAL_CTRL_PRI_IPU_MASK (0x3 << LCDC_DUAL_CTRL_PRI_IPU_BIT)
+/*
+ * 1: fix the priority of lcd0/1 in lcd internal arbiter;
+ * 0: use priority of lcd0/1 generated by lcd in lcd internal arbiter
+ */
+#define LCDC_DUAL_CTRL_PRI_LCD_EN BIT(2)
+#define LCDC_DUAL_CTRL_PRI_LCD_BIT 0
+#define LCDC_DUAL_CTRL_PRI_LCD_MASK (0x3 << LCDC_DUAL_CTRL_PRI_LCD_BIT)
+
+/* Image Enhancement CFG Register */
+#define LCDC_ENH_CFG_DITHER_EN BIT(9)
+#define LCDC_ENH_CFG_YCC2RGB_EN BIT(8)
+#define LCDC_ENH_CFG_SATURATION_EN BIT(7)
+#define LCDC_ENH_CFG_VEE_EN BIT(6)
+#define LCDC_ENH_CFG_HUE_EN BIT(5)
+#define LCDC_ENH_CFG_BRIGHTNESS_EN BIT(4)
+#define LCDC_ENH_CFG_CONTRAST_EN BIT(3)
+#define LCDC_ENH_CFG_RGB2YCC_EN BIT(2)
+#define LCDC_ENH_CFG_GAMMA_EN BIT(1)
+#define LCDC_ENH_CFG_ENH_EN BIT(0)
+
+/* Color Space Conversion CFG Register */
+#define LCDC_ENH_CSCCFG_YCC2RGBMD_BIT 2 /* YCbCr to RGB */
+#define LCDC_ENH_CSCCFG_YCC2RGBMD_MASK (0x03 << LCDC_ENH_CSCCFG_YCC2RGBMD_BIT)
+#define LCDC_ENH_CSCCFG_YCC2RGBMD_0 (0 << LCDC_ENH_CSCCFG_YCC2RGBMD_BIT)
+#define LCDC_ENH_CSCCFG_YCC2RGBMD_1 (1 << LCDC_ENH_CSCCFG_YCC2RGBMD_BIT)
+#define LCDC_ENH_CSCCFG_YCC2RGBMD_2 (2 << LCDC_ENH_CSCCFG_YCC2RGBMD_BIT)
+#define LCDC_ENH_CSCCFG_YCC2RGBMD_3 (3 << LCDC_ENH_CSCCFG_YCC2RGBMD_BIT)
+/*
+ * 00:601WIDE; 01:601NARROW
+ * 10:709WIDE; 11:709NARROW
+ * WIDE:RGB range 16-235
+ * NARROW:RGB range 0-255
+*/
+#define LCDC_ENH_CSCCFG_RGB2YCCMD_BIT 0 /* RGB to YCbCr*/
+#define LCDC_ENH_CSCCFG_RGB2YCCMD_MASK (0x03 << LCDC_ENH_CSCCFG_RGB2YCCMD_BIT)
+#define LCDC_ENH_CSCCFG_RGB2YCCMD_0 (0 << LCDC_ENH_CSCCFG_RGB2YCCMD_BIT)
+#define LCDC_ENH_CSCCFG_RGB2YCCMD_1 (1 << LCDC_ENH_CSCCFG_RGB2YCCMD_BIT)
+#define LCDC_ENH_CSCCFG_RGB2YCCMD_2 (2 << LCDC_ENH_CSCCFG_RGB2YCCMD_BIT)
+#define LCDC_ENH_CSCCFG_RGB2YCCMD_3 (3 << LCDC_ENH_CSCCFG_RGB2YCCMD_BIT)
+
+/* LUMA CFG Register */
+#define LCDC_ENH_LUMACFG_BRIGHT_BIT 16 /*
+ * Brightness value :0x0-0x7ff
+ * means 0.9999~-0.9999
+ */
+#define LCDC_ENH_LUMACFG_BRIGHT_MASK (0x7ff << LCDC_ENH_LUMACFG_BRIGHT_BIT)
+
+#define LCDC_ENH_LUMACFG_CONTRAST_BIT 0 /*
+ * Contrast value :0x0-0x7ff
+ * means 0~1.9999
+ */
+#define LCDC_ENH_LUMACFG_CONTRAST_MASK (0x7ff << LCDC_ENH_LUMACFG_CONTRAST_BIT)
+
+/* CHROMA0 CFG Register */
+#define LCDC_ENH_CHROCFG0_HUE_SIN_BIT 16
+#define LCDC_ENH_CHROCFG0_HUE_SIN_MASK (0xfff << LCDC_ENH_CHROCFG0_HUE_SIN_BIT)
+#define LCDC_ENH_CHROCFG0_HUE_COS_BIT 0
+#define LCDC_ENH_CHROCFG0_HUE_COS_MASK (0xfff << LCDC_ENH_CHROCFG0_HUE_COS_BIT)
+
+/* CHROMA1 CFG Register */
+#define LCDC_ENH_CHROCFG1_SATUR_BIT 0
+#define LCDC_ENH_CHROCFG1_SATUR_MASK (0x7ff << LCDC_ENH_CHROCFG1_SATUR_BIT)
+
+/* DITHER CFG Register */
+/*
+ * 00:8bit dither
+ * 01:6bit dither
+ * 10:5bit dither
+ * 11:4bit dither
+*/
+#define LCDC_ENH_DITHERCFG_RED_BIT 4
+#define LCDC_ENH_DITHERCFG_RED_MASK (0x03 << LCDC_ENH_DITHERCFG_RED_BIT)
+#define LCDC_ENH_DITHERCFG_GREEN_BIT 2
+#define LCDC_ENH_DITHERCFG_GREEN_MASK (0x03 << LCDC_ENH_DITHERCFG_GREEN_BIT)
+#define LCDC_ENH_DITHERCFG_BLUE_BIT 0
+#define LCDC_ENH_DITHERCFG_BLUE_MASK (0x03 << LCDC_ENH_DITHERCFG_BLUE_BIT)
+
+/* Enhance Status Register */
+#define LCDC_ENH_STATUS_DITHER_DIS BIT(9)
+#define LCDC_ENH_STATUS_YCC2RGB_DIS BIT(8)
+#define LCDC_ENH_STATUS_SATURATION_DIS BIT(7)
+#define LCDC_ENH_STATUS_VEE_DIS BIT(6)
+#define LCDC_ENH_STATUS_HUE_DIS BIT(5)
+#define LCDC_ENH_STATUS_BRIGHTNESS_DIS BIT(4)
+#define LCDC_ENH_STATUS_CONTRAST_DIS BIT(3)
+#define LCDC_ENH_STATUS_RGB2YCC_DIS BIT(2)
+#define LCDC_ENH_STATUS_GAMMA_DIS BIT(1)
+
+/* GAMMA CFG Register */
+#define LCDC_ENH_GAMMA_DATA1_BIT 16
+#define LCDC_ENH_GAMMA_DATA1_MASK (0x3ff << LCDC_ENH_GAMMA_DATA1_BIT)
+#define LCDC_ENH_GAMMA_DATA0_BIT 0
+#define LCDC_ENH_GAMMA_DATA0_MASK (0x3ff << LCDC_ENH_GAMMA_DATA0_BIT)
+#define LCDC_ENH_GAMMA_LEN 0x800
+
+/* VEE CFG Register */
+#define LCDC_ENH_VEE_VEE_DATA1_BIT 16
+#define LCDC_ENH_VEE_VEE_DATA1_MASK (0x3ff << LCDC_ENH_VEE_VEE_DATA1_BIT)
+#define LCDC_ENH_VEE_VEE_DATA0_BIT 0
+#define LCDC_ENH_VEE_VEE_DATA0_MASK (0x3ff << LCDC_ENH_VEE_VEE_DATA0_BIT)
+#define LCDC_ENH_VEE_LEN 0x800
+
+/* Register Map Of SLCD (Smart LCD Controller) */
+#define SLCDC_CFG 0xA0
+#define SLCDC_CTRL 0xA4
+#define SLCDC_STATE 0xA8
+#define SLCDC_DATA 0xAc
+
+/* SLCD Configure Register */
+#define SLCDC_CFG_DWIDTH_BIT 10
+#define SLCDC_CFG_DWIDTH_MASK (0x7 << SLCDC_CFG_DWIDTH_BIT)
+#define SLCDC_CFG_DWIDTH_18BIT (0 << SLCDC_CFG_DWIDTH_BIT)
+#define SLCDC_CFG_DWIDTH_16BIT (1 << SLCDC_CFG_DWIDTH_BIT)
+#define SLCDC_CFG_DWIDTH_8BIT_x3 (2 << SLCDC_CFG_DWIDTH_BIT)
+#define SLCDC_CFG_DWIDTH_8BIT_x2 (3 << SLCDC_CFG_DWIDTH_BIT)
+#define SLCDC_CFG_DWIDTH_8BIT_x1 (4 << SLCDC_CFG_DWIDTH_BIT)
+#define SLCDC_CFG_DWIDTH_24BIT (5 << SLCDC_CFG_DWIDTH_BIT)
+#define SLCDC_CFG_DWIDTH_9BIT_x2 (7 << SLCDC_CFG_DWIDTH_BIT)
+#define SLCDC_CFG_CWIDTH_BIT 8
+#define SLCDC_CFG_CWIDTH_MASK (0x3 << SLCDC_CFG_CWIDTH_BIT)
+#define SLCDC_CFG_CWIDTH_16BIT (0 << SLCDC_CFG_CWIDTH_BIT)
+#define SLCDC_CFG_CWIDTH_8BIT (1 << SLCDC_CFG_CWIDTH_BIT)
+#define SLCDC_CFG_CWIDTH_18BIT (2 << SLCDC_CFG_CWIDTH_BIT)
+#define SLCDC_CFG_CWIDTH_24BIT (3 << SLCDC_CFG_CWIDTH_BIT)
+#define SLCDC_CFG_CS_ACTIVE_LOW (0 << 4)
+#define SLCDC_CFG_CS_ACTIVE_HIGH BIT(4)
+#define SLCDC_CFG_RS_CMD_LOW (0 << 3)
+#define SLCDC_CFG_RS_CMD_HIGH BIT(3)
+#define SLCDC_CFG_CLK_ACTIVE_FALLING (0 << 1)
+#define SLCDC_CFG_CLK_ACTIVE_RISING BIT(1)
+#define SLCDC_CFG_TYPE_PARALLEL (0 << 0)
+#define SLCDC_CFG_TYPE_SERIAL BIT(0)
+
+/* SLCD Control Register */
+#define SLCDC_CTRL_DMA_MODE BIT(2)
+#define SLCDC_CTRL_DMA_START BIT(1)
+#define SLCDC_CTRL_DMA_EN BIT(0)
+
+/* SLCD Status Register */
+#define SLCDC_STATE_BUSY BIT(0)
+
+/* SLCD Data Register */
+#define SLCDC_DATA_RS_DATA (0 << 31)
+#define SLCDC_DATA_RS_COMMAND BIT(31)
+
+/* Register Map Of LVDSC (LVDS Controller) */
+#define LVDS_TXCTRL 0x3c0
+#define LVDS_TXPLL0 0x3c4
+#define LVDS_TXPLL1 0x3c8
+#define LVDS_TXECTRL 0x3cc
+
+/* TXCTRL (LVDS Transmitter Control Register) */
+#define LVDS_MODEL_SEL BIT(31)
+#define LVDS_TX_PDB BIT(30)
+#define LVDS_TX_PDB_CK BIT(29)
+#define LVDS_RESERVE(n) (1 << 20 + (n))
+#define LVDS_TX_RSTB BIT(18)
+#define LVDS_TX_CKBIT_PHA_SEL BIT(17)
+#define LVDS_TX_CKBYTE_PHA_SEL BIT(16)
+
+#define LVDS_TX_CKOUT_PHA_S_BIT 13
+#define LVDS_TX_CKOUT_PHA_S_MASK (0x07 << LVDS_TX_CKOUT_PHA_S_BIT)
+
+#define LVDS_TX_CKOUT_SET BIT(12)
+#define LVDS_TX_OUT_SEL BIT(11)
+#define LVDS_TX_DLY_SEL_BIT 8
+#define LVDS_TX_DLY_SEL_MASK (0x07 << LVDS_TX_DLY_SEL_BIT)
+#define LVDS_TX_AMP_ADJ BIT(7)
+#define LVDS_TX_LVDS BIT(6)
+#define LVDS_TX_CR_BIT 3
+#define LVDS_TX_CR_MASK (0x07 << LVDS_TX_CR_BIT)
+#define LVDS_TX_CR_CK BIT(2)
+#define LVDS_TX_OD_S BIT(1)
+#define LVDS_TX_OD_EN BIT(0)
+
+/* TXPLL0 (LVDS Transmitter's PLL Control Register 0 */
+
+#define LVDS_PLL_LOCK BIT(31)
+#define LVDS_PLL_EN BIT(30)
+#define LVDS_BG_PWD BIT(29)
+#define LVDS_PLL_SSC_EN BIT(27)
+#define LVDS_PLL_SSC_MODE BIT(26)
+#define LVDS_PLL_TEST BIT(25)
+#define LVDS_PLL_POST_DIVA_BIT 21
+#define LVDS_PLL_POST_DIVA_MASK (0x03 << LVDS_PLL_POST_DIVA_BIT)
+#define LVDS_PLL_POST_DIVB_BIT 16
+#define LVDS_PLL_POST_DIVB_MASK (0x1f << LVDS_PLL_POST_DIVB_BIT)
+#define LVDS_PLL_PLLN_BIT 8
+#define LVDS_PLL_PLLN_MASK (0x7f << LVDS_PLL_PLLN_BIT)
+#define LVDS_PLL_TEST_DIV_BIT 6
+#define LVDS_PLL_TEST_DIV_MASK (0x03 << LVDS_PLL_TEST_DIV_BIT)
+#define LVDS_PLL_TEST_DIV_2 (0 << LVDS_PLL_TEST_DIV_BIT)
+#define LVDS_PLL_TEST_DIV_4 (1 << LVDS_PLL_TEST_DIV_BIT)
+#define LVDS_PLL_TEST_DIV_8 (2 << LVDS_PLL_TEST_DIV_BIT)
+#define LVDS_PLL_TEST_DIV_16 (3 << LVDS_PLL_TEST_DIV_BIT)
+#define LVDS_PLL_IN_BYPASS (1 << 5)
+#define LVDS_PLL_INDIV_BIT 0
+#define LVDS_PLL_INDIV_MASK (0x1f << LVDS_PLL_INDIV_BIT)
+
+/* TXPLL1 (LVDS Transmitter's PLL Control Register 1 */
+
+#define LVDS_PLL_ICP_SEL_BIT 29
+#define LVDS_PLL_ICP_SEL_MASK (0x07 << LVDS_PLL_ICP_SEL_BIT)
+#define LVDS_PLL_KVCO_BIT 26
+#define LVDS_PLL_KVCO_MASK (0x03 << LVDS_PLL_KVCO_BIT)
+#define LVDS_PLL_IVCO_SEL_BIT 24
+#define LVDS_PLL_IVCO_SEL_MASK (0x03 << LVDS_PLL_IVCO_SEL_BIT)
+#define LVDS_PLL_SSCN_BIT 17
+#define LVDS_PLL_SSCN_MASK (0x7f << LVDS_PLL_SSCN_BIT)
+#define LVDS_PLL_COUNT_BIT 4
+#define LVDS_PLL_COUNT_MASK (0x1fff << LVDS_PLL_COUNT_BIT)
+#define LVDS_PLL_GAIN_BIT 0
+#define LVDS_PLL_GAIN_MASK (0x0f << LVDS_PLL_GAIN_BIT)
+
+/* TXECTRL (LVDS Transmitter's Enhance Control */
+
+#define LVDS_TX_EM_S_BIT 9
+#define LVDS_TX_EM_S_MASK (0x03 << LVDS_TX_EM_S_BIT)
+#define LVDS_TX_EM_EN BIT(8)
+#define LVDS_TX_LDO_VO_S_BIT 5
+#define LVDS_TX_LDO_VO_S_MASK (0x03 << LVDS_TX_LDO_VO_S_BIT)
+#define LVDS_TX_LDO_VO_S_0 (0x00 << LVDS_TX_LDO_VO_S_BIT)
+#define LVDS_TX_LDO_VO_S_1 (0x01 << LVDS_TX_LDO_VO_S_BIT)
+#define LVDS_TX_LDO_VO_S_2 (0x02 << LVDS_TX_LDO_VO_S_BIT)
+#define LVDS_TX_LDO_VO_S_3 (0x03 << LVDS_TX_LDO_VO_S_BIT)
+#define LVDS_PLL_PL_BP BIT(4)
+
+/*
+ * Internal 7x clock phase fine tuning for data
+ * setup/hold time optimization
+ */
+#define LVDS_TX_CK_PHA_FINE_BIT 2
+#define LVDS_TX_CK_PHA_FINE_MASK (0x03 << LVDS_TX_CK_PHA_FINE_BIT)
+/*
+ * Internal 7x clock phase coarse tuning for data
+ * setup/hold time optimization
+ */
+#define LVDS_TX_CK_PHA_COAR_BIT 0
+#define LVDS_TX_CK_PHA_COAR_MASK (0x03 << LVDS_TX_CK_PHA_COAR_BIT)
+
+/*
+ * Helpers:
+ */
+
+static inline unsigned long jz4780_read(struct drm_device *dev, u32 reg)
+{
+ struct jz4780_drm_private *priv = dev->dev_private;
+
+ return ioread32(priv->mmio + reg);
+}
+
+static inline void jz4780_write(struct drm_device *dev, u32 reg, u32 data)
+{
+ struct jz4780_drm_private *priv = dev->dev_private;
+
+ iowrite32(data, priv->mmio + reg);
+}
+#endif /* __JZ4780_REGS_H__ */
--
1.9.1
^ permalink raw reply [flat|nested] 8+ messages in thread* [PATCH 5/5] drm: bridge/dw_hdmi: add jz4780 support
2015-03-04 15:37 [PATCH 0/5] drm: dt: jz4780: Add Ingenic JZ4780 driver Zubair Lutfullah Kakakhel
` (3 preceding siblings ...)
2015-03-04 15:37 ` [PATCH 4/5] dt-bindings: video: Add jz4780-hdmi binding Zubair Lutfullah Kakakhel
@ 2015-03-04 15:37 ` Zubair Lutfullah Kakakhel
2015-03-04 21:30 ` Paul Bolle
4 siblings, 1 reply; 8+ messages in thread
From: Zubair Lutfullah Kakakhel @ 2015-03-04 15:37 UTC (permalink / raw)
To: airlied; +Cc: dri-devel, devicetree, linux-kernel, Zubair.Kakakhel
Ingenic JZ4780 hdmi is compatible with dw_hdmi.
Signed-off-by: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
---
drivers/gpu/drm/jz4780/Kconfig | 10 ++
drivers/gpu/drm/jz4780/Makefile | 1 +
drivers/gpu/drm/jz4780/dw_hdmi-jz4780.c | 234 ++++++++++++++++++++++++++++++++
include/drm/bridge/dw_hdmi.h | 1 +
4 files changed, 246 insertions(+)
create mode 100644 drivers/gpu/drm/jz4780/dw_hdmi-jz4780.c
diff --git a/drivers/gpu/drm/jz4780/Kconfig b/drivers/gpu/drm/jz4780/Kconfig
index ae417d1..1dc1ea6 100644
--- a/drivers/gpu/drm/jz4780/Kconfig
+++ b/drivers/gpu/drm/jz4780/Kconfig
@@ -10,3 +10,13 @@ config DRM_JZ4780
Choose this option if you have an Ingenic JZ4780 SoC with LCDC display
controller, for example the MIPS Creator CI20 board
+config JZ4780_DW_HDMI
+ tristate "JZ4780 specific extensions for Synopsys DW HDMI"
+ depends on DRM_JZ4780
+ select DRM_DW_HDMI
+ help
+ This selects support for JZ4780 SoC specific extensions
+ for the Synopsys DesignWare HDMI driver. If you want to
+ enable HDMI on JZ4780 based SoC, you should select this
+ option.n if you have an Ingenic SoC with LCDC display
+ controller, for example the CI20 board
diff --git a/drivers/gpu/drm/jz4780/Makefile b/drivers/gpu/drm/jz4780/Makefile
index f1c9ee5..57d15b5 100644
--- a/drivers/gpu/drm/jz4780/Makefile
+++ b/drivers/gpu/drm/jz4780/Makefile
@@ -7,4 +7,5 @@ jz4780-y := \
jz4780_crtc.o \
jz4780_drv.o
+obj-$(CONFIG_JZ4780_DW_HDMI) += dw_hdmi-jz4780.o
obj-$(CONFIG_DRM_JZ4780) += jz4780.o
diff --git a/drivers/gpu/drm/jz4780/dw_hdmi-jz4780.c b/drivers/gpu/drm/jz4780/dw_hdmi-jz4780.c
new file mode 100644
index 0000000..dd66458
--- /dev/null
+++ b/drivers/gpu/drm/jz4780/dw_hdmi-jz4780.c
@@ -0,0 +1,234 @@
+/* Copyright (C) 2011-2013 Freescale Semiconductor, Inc.
+ * Copyright (C) 2015 Imagination Technologies Ltd.
+ *
+ * derived from dw_hdmi-imx.c
+ *
+ * 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 Foundation.
+ */
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/component.h>
+#include <linux/clk.h>
+#include <linux/mfd/syscon.h>
+#include <drm/bridge/dw_hdmi.h>
+#include <linux/regmap.h>
+#include <drm/drm_of.h>
+#include <drm/drmP.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_edid.h>
+#include <drm/drm_encoder_slave.h>
+
+struct jz4780_hdmi {
+ struct device *dev;
+ struct drm_encoder encoder;
+ struct regmap *regmap;
+};
+
+static const struct dw_hdmi_mpll_config jz4780_mpll_cfg[] = {
+ {
+ 45250000, {
+ { 0x01e0, 0x0000 },
+ { 0x21e1, 0x0000 },
+ { 0x41e2, 0x0000 }
+ },
+ }, {
+ 92500000, {
+ { 0x0140, 0x0005 },
+ { 0x2141, 0x0005 },
+ { 0x4142, 0x0005 },
+ },
+ }, {
+ 148500000, {
+ { 0x00a0, 0x000a },
+ { 0x20a1, 0x000a },
+ { 0x40a2, 0x000a },
+ },
+ }, {
+ ~0UL, {
+ { 0x00a0, 0x000a },
+ { 0x2001, 0x000f },
+ { 0x4002, 0x000f },
+ },
+ }
+};
+
+static const struct dw_hdmi_curr_ctrl jz4780_cur_ctr[] = {
+ /* pixelclk bpp8 bpp10 bpp12 */
+ {
+ 54000000, { 0x091c, 0x091c, 0x06dc },
+ }, {
+ 58400000, { 0x091c, 0x06dc, 0x06dc },
+ }, {
+ 72000000, { 0x06dc, 0x06dc, 0x091c },
+ }, {
+ 74250000, { 0x06dc, 0x0b5c, 0x091c },
+ }, {
+ 118800000, { 0x091c, 0x091c, 0x06dc },
+ }, {
+ 216000000, { 0x06dc, 0x0b5c, 0x091c },
+ }
+};
+
+static const struct dw_hdmi_sym_term jz4780_sym_term[] = {
+ /*pixelclk symbol term*/
+ { 148500000, 0x800d, 0x0005 },
+ { ~0UL, 0x0000, 0x0000 }
+};
+
+static void dw_hdmi_jz4780_encoder_disable(struct drm_encoder *encoder)
+{
+}
+
+static bool dw_hdmi_jz4780_encoder_mode_fixup(struct drm_encoder *encoder,
+ const struct drm_display_mode *mode,
+ struct drm_display_mode *adj_mode)
+{
+ return true;
+}
+
+static void dw_hdmi_jz4780_encoder_mode_set(struct drm_encoder *encoder,
+ struct drm_display_mode *mode,
+ struct drm_display_mode *adj_mode)
+{
+}
+
+static void dw_hdmi_jz4780_encoder_commit(struct drm_encoder *encoder)
+{
+}
+
+static void dw_hdmi_jz4780_encoder_prepare(struct drm_encoder *encoder)
+{
+}
+
+static struct drm_encoder_helper_funcs dw_hdmi_jz4780_encoder_helper_funcs = {
+ .mode_fixup = dw_hdmi_jz4780_encoder_mode_fixup,
+ .mode_set = dw_hdmi_jz4780_encoder_mode_set,
+ .prepare = dw_hdmi_jz4780_encoder_prepare,
+ .commit = dw_hdmi_jz4780_encoder_commit,
+ .disable = dw_hdmi_jz4780_encoder_disable,
+};
+
+static struct drm_encoder_funcs dw_hdmi_jz4780_encoder_funcs = {
+ .destroy = drm_encoder_cleanup,
+};
+
+static struct dw_hdmi_plat_data jz4780_hdmi_drv_data = {
+ .mpll_cfg = jz4780_mpll_cfg,
+ .cur_ctr = jz4780_cur_ctr,
+ .sym_term = jz4780_sym_term,
+ .dev_type = JZ4780_HDMI,
+};
+
+static const struct of_device_id dw_hdmi_jz4780_dt_ids[] = {
+ { .compatible = "ingenic,jz4780-hdmi",
+ .data = &jz4780_hdmi_drv_data
+ },
+ {},
+};
+MODULE_DEVICE_TABLE(of, dw_hdmi_jz4780_dt_ids);
+
+static int dw_hdmi_jz4780_bind(struct device *dev, struct device *master,
+ void *data)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ const struct dw_hdmi_plat_data *plat_data;
+ const struct of_device_id *match;
+ struct drm_device *drm = data;
+ struct drm_encoder *encoder;
+ struct jz4780_hdmi *hdmi;
+ struct resource *iores;
+ struct clk *isfr_clk;
+ int irq;
+ int ret;
+
+ if (!pdev->dev.of_node)
+ return -ENODEV;
+
+ hdmi = devm_kzalloc(&pdev->dev, sizeof(*hdmi), GFP_KERNEL);
+ if (!hdmi)
+ return -ENOMEM;
+
+ match = of_match_node(dw_hdmi_jz4780_dt_ids, pdev->dev.of_node);
+ plat_data = match->data;
+ hdmi->dev = &pdev->dev;
+ encoder = &hdmi->encoder;
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0)
+ return irq;
+
+ iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!iores)
+ return -ENXIO;
+
+ isfr_clk = devm_clk_get(hdmi->dev, "isfr");
+ if (IS_ERR(isfr_clk)) {
+ ret = PTR_ERR(isfr_clk);
+ dev_err(hdmi->dev, "Unable to get HDMI isfr clk: %d\n", ret);
+ return ret;
+ }
+
+ clk_set_rate(isfr_clk, 27000000);
+
+ platform_set_drvdata(pdev, hdmi);
+
+ encoder->possible_crtcs = drm_of_find_possible_crtcs(drm, dev->of_node);
+ /*
+ * If we failed to find the CRTC(s) which this encoder is
+ * supposed to be connected to, it's because the CRTC has
+ * not been registered yet. Defer probing, and hope that
+ * the required CRTC is added later.
+ */
+ if (encoder->possible_crtcs == 0)
+ return -EPROBE_DEFER;
+
+ drm_encoder_helper_add(encoder, &dw_hdmi_jz4780_encoder_helper_funcs);
+ drm_encoder_init(drm, encoder, &dw_hdmi_jz4780_encoder_funcs,
+ DRM_MODE_ENCODER_TMDS);
+
+ return dw_hdmi_bind(dev, master, data, encoder, iores, irq, plat_data);
+}
+
+static void dw_hdmi_jz4780_unbind(struct device *dev, struct device *master,
+ void *data)
+{
+
+ return dw_hdmi_unbind(dev, master, data);
+}
+
+static const struct component_ops dw_hdmi_jz4780_ops = {
+ .bind = dw_hdmi_jz4780_bind,
+ .unbind = dw_hdmi_jz4780_unbind,
+};
+
+static int dw_hdmi_jz4780_probe(struct platform_device *pdev)
+{
+
+ return component_add(&pdev->dev, &dw_hdmi_jz4780_ops);
+}
+
+static int dw_hdmi_jz4780_remove(struct platform_device *pdev)
+{
+
+ component_del(&pdev->dev, &dw_hdmi_jz4780_ops);
+
+ return 0;
+}
+
+static struct platform_driver dw_hdmi_jz4780_platform_driver = {
+ .probe = dw_hdmi_jz4780_probe,
+ .remove = dw_hdmi_jz4780_remove,
+ .driver = {
+ .name = "dwhdmi-jz4780",
+ .of_match_table = dw_hdmi_jz4780_dt_ids,
+ },
+};
+
+module_platform_driver(dw_hdmi_jz4780_platform_driver);
+
+MODULE_AUTHOR("Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>");
+MODULE_DESCRIPTION("Ingenic JZ4780 Specific DW-HDMI Driver Extension");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:dwhdmi-jz4780");
diff --git a/include/drm/bridge/dw_hdmi.h b/include/drm/bridge/dw_hdmi.h
index 5a4f490..984adee 100644
--- a/include/drm/bridge/dw_hdmi.h
+++ b/include/drm/bridge/dw_hdmi.h
@@ -20,6 +20,7 @@ enum {
};
enum dw_hdmi_devtype {
+ JZ4780_HDMI,
IMX6Q_HDMI,
IMX6DL_HDMI,
RK3288_HDMI,
--
1.9.1
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