gma500: Clean up the DPU config and make it runtime

We really don't want this all done by ifdeffery - and this isn't any need
as it's fairly easy to sort out.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/gma500/Makefile

@@ -46,6 +46,7 @@ psb_gfx-$(CONFIG_DRM_PSB_MFLD) += mdfld_device.o \
 	  mdfld_dsi_dpi.o \
 	  mdfld_dsi_output.o \
 	  mdfld_dsi_dbi.o \
+	  mdfld_dsi_dbi_dpu.o \
 	  mdfld_intel_display.o
 
 obj-$(CONFIG_DRM_PSB) += psb_gfx.o

drivers/staging/gma500/mdfld_dsi_dbi.c

@@ -327,7 +327,6 @@ void mdfld_dsi_dbi_enter_dsr(struct mdfld_dsi_dbi_output *dbi_output, int pipe)
 	}
 }
 
-#ifndef CONFIG_MDFLD_DSI_DPU
 static void mdfld_dbi_output_exit_dsr(struct mdfld_dsi_dbi_output *dbi_output,
 			int pipe)
 {
@@ -562,7 +561,6 @@ void mdfld_dbi_dsr_exit(struct drm_device *dev)
 		dev_priv->dbi_dsr_info = NULL;
 	}
 }
-#endif
 
 void mdfld_dsi_controller_dbi_init(struct mdfld_dsi_config *dsi_config,
 								int pipe)
@@ -648,12 +646,8 @@ struct mdfld_dsi_encoder *mdfld_dsi_dbi_init(struct drm_device *dev,
 	struct drm_encoder *encoder = NULL;
 	struct drm_display_mode *fixed_mode = NULL;
 	struct psb_gtt *pg = dev_priv ? (&dev_priv->gtt) : NULL;
-
-#ifdef CONFIG_MDFLD_DSI_DPU
 	struct mdfld_dbi_dpu_info *dpu_info = dev_priv ? (dev_priv->dbi_dpu_info) : NULL;
-#else
 	struct mdfld_dbi_dsr_info *dsr_info = dev_priv ? (dev_priv->dbi_dsr_info) : NULL;
-#endif
 	u32 data = 0;
 	int pipe;
 	int ret;
@@ -742,20 +736,16 @@ struct mdfld_dsi_encoder *mdfld_dsi_dbi_init(struct drm_device *dev,
 	dbi_output->first_boot = true;
 	dbi_output->mode_flags = MODE_SETTING_IN_ENCODER;
 
-#ifdef CONFIG_MDFLD_DSI_DPU
-	/* Add this output to dpu_info */
-	if (dsi_connector->status == connector_status_connected) {
+	/* Add this output to dpu_info if in DPU mode */
+	if (dpu_info && dsi_connector->status == connector_status_connected) {
 		if (dsi_connector->pipe == 0)
 			dpu_info->dbi_outputs[0] = dbi_output;
 		else
 			dpu_info->dbi_outputs[1] = dbi_output;
 
 		dpu_info->dbi_output_num++;
-	}
-
-#else /*CONFIG_MDFLD_DSI_DPU*/
-	if (dsi_connector->status == connector_status_connected) {
-		/* Add this output to dsr_info */
+	} else if (dsi_connector->status == connector_status_connected) {
+		/* Add this output to dsr_info if not */
 		if (dsi_connector->pipe == 0)
 			dsr_info->dbi_outputs[0] = dbi_output;
 		else
@@ -763,7 +753,6 @@ struct mdfld_dsi_encoder *mdfld_dsi_dbi_init(struct drm_device *dev,
 
 		dsr_info->dbi_output_num++;
 	}
-#endif
 	return &dbi_output->base;
 out_err1:
 	kfree(dbi_output);

drivers/staging/gma500/mdfld_dsi_dbi_dpu.c

@@ -0,0 +1,778 @@
+/*
+ * Copyright © 2010-2011 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ * Jim Liu <jim.liu@intel.com>
+ * Jackie Li<yaodong.li@intel.com>
+ */
+
+#include "mdfld_dsi_dbi_dpu.h"
+#include "mdfld_dsi_dbi.h"
+
+/*
+ * NOTE: all mdlfd_x_damage funcs should be called by holding dpu_update_lock
+ */
+
+static int mdfld_cursor_damage(struct mdfld_dbi_dpu_info *dpu_info,
+			   mdfld_plane_t plane,
+			   struct psb_drm_dpu_rect *damaged_rect)
+{
+	int x, y;
+	int new_x, new_y;
+	struct psb_drm_dpu_rect *rect;
+	struct psb_drm_dpu_rect *pipe_rect;
+	int cursor_size;
+	struct mdfld_cursor_info *cursor;
+	mdfld_plane_t fb_plane;
+
+	if (plane == MDFLD_CURSORA) {
+		cursor = &dpu_info->cursors[0];
+		x = dpu_info->cursors[0].x;
+		y = dpu_info->cursors[0].y;
+		cursor_size = dpu_info->cursors[0].size;
+		pipe_rect = &dpu_info->damage_pipea;
+		fb_plane = MDFLD_PLANEA;
+	} else {
+		cursor = &dpu_info->cursors[1];
+		x = dpu_info->cursors[1].x;
+		y = dpu_info->cursors[1].y;
+		cursor_size = dpu_info->cursors[1].size;
+		pipe_rect = &dpu_info->damage_pipec;
+		fb_plane = MDFLD_PLANEC;
+	}
+	new_x = damaged_rect->x;
+	new_y = damaged_rect->y;
+
+	if (x == new_x && y == new_y)
+		return 0;
+
+	rect = &dpu_info->damaged_rects[plane];
+	/* Move to right */
+	if (new_x >= x) {
+		if (new_y > y) {
+			rect->x = x;
+			rect->y = y;
+			rect->width = (new_x + cursor_size) - x;
+			rect->height = (new_y + cursor_size) - y;
+			goto cursor_out;
+		} else {
+			rect->x = x;
+			rect->y = new_y;
+			rect->width = (new_x + cursor_size) - x;
+			rect->height = (y - new_y);
+			goto cursor_out;
+		}
+	} else {
+		if (new_y > y) {
+			rect->x = new_x;
+			rect->y = y;
+			rect->width = (x + cursor_size) - new_x;
+			rect->height = new_y - y;
+			goto cursor_out;
+		} else {
+			rect->x = new_x;
+			rect->y = new_y;
+			rect->width = (x + cursor_size) - new_x;
+			rect->height = (y + cursor_size) - new_y;
+		}
+	}
+cursor_out:
+	if (new_x < 0)
+		cursor->x = 0;
+	else if (new_x > 864)
+		cursor->x = 864;
+	else
+		cursor->x = new_x;
+
+	if (new_y < 0)
+		cursor->y = 0;
+	else if (new_y > 480)
+		cursor->y = 480;
+	else
+		cursor->y = new_y;
+
+	/*
+	 * FIXME: this is a workaround for cursor plane update,
+	 * remove it later!
+	 */
+	rect->x = 0;
+	rect->y = 0;
+	rect->width = 864;
+	rect->height = 480;
+
+	mdfld_check_boundary(dpu_info, rect);
+	mdfld_dpu_region_extent(pipe_rect, rect);
+
+	/* Update pending status of dpu_info */
+	dpu_info->pending |= (1 << plane);
+	/* Update fb panel as well */
+	dpu_info->pending |= (1 << fb_plane);
+	return 0;
+}
+
+static int mdfld_fb_damage(struct mdfld_dbi_dpu_info *dpu_info,
+				   mdfld_plane_t plane,
+				   struct psb_drm_dpu_rect *damaged_rect)
+{
+	struct psb_drm_dpu_rect *rect;
+
+	if (plane == MDFLD_PLANEA)
+		rect = &dpu_info->damage_pipea;
+	else
+		rect = &dpu_info->damage_pipec;
+
+	mdfld_check_boundary(dpu_info, damaged_rect);
+
+	/* Add fb damage area to this pipe */
+	mdfld_dpu_region_extent(rect, damaged_rect);
+
+	/* Update pending status of dpu_info */
+	dpu_info->pending |= (1 << plane);
+	return 0;
+}
+
+/* Do nothing here, right now */
+static int mdfld_overlay_damage(struct mdfld_dbi_dpu_info *dpu_info,
+				mdfld_plane_t plane,
+				struct psb_drm_dpu_rect *damaged_rect)
+{
+	return 0;
+}
+
+int mdfld_dbi_dpu_report_damage(struct drm_device *dev,
+				mdfld_plane_t plane,
+				struct psb_drm_dpu_rect *rect)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct mdfld_dbi_dpu_info *dpu_info = dev_priv->dbi_dpu_info;
+	int ret = 0;
+
+	/* DPU not in use, no damage reporting needed */
+	if (dpu_info == NULL)
+		return 0;
+
+	spin_lock(&dpu_info->dpu_update_lock);
+
+	switch (plane) {
+	case MDFLD_PLANEA:
+	case MDFLD_PLANEC:
+		mdfld_fb_damage(dpu_info, plane, rect);
+		break;
+	case MDFLD_CURSORA:
+	case MDFLD_CURSORC:
+		mdfld_cursor_damage(dpu_info, plane, rect);
+		break;
+	case MDFLD_OVERLAYA:
+	case MDFLD_OVERLAYC:
+		mdfld_overlay_damage(dpu_info, plane, rect);
+		break;
+	default:
+		DRM_ERROR("Invalid plane type %d\n", plane);
+		ret = -EINVAL;
+	}
+	spin_unlock(&dpu_info->dpu_update_lock);
+	return ret;
+}
+
+int mdfld_dbi_dpu_report_fullscreen_damage(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv;
+	struct mdfld_dbi_dpu_info *dpu_info;
+	struct mdfld_dsi_config  *dsi_config;
+	struct psb_drm_dpu_rect rect;
+	int i;
+
+	if (!dev) {
+		DRM_ERROR("Invalid parameter\n");
+		return -EINVAL;
+	}
+
+	dev_priv = dev->dev_private;
+	dpu_info = dev_priv->dbi_dpu_info;
+
+	/* This is fine - we may be in non DPU mode */
+	if (!dpu_info)
+		return -EINVAL;
+
+	for (i = 0; i < dpu_info->dbi_output_num; i++) {
+		dsi_config = dev_priv->dsi_configs[i];
+		if (dsi_config) {
+			rect.x = rect.y = 0;
+			rect.width = dsi_config->fixed_mode->hdisplay;
+			rect.height = dsi_config->fixed_mode->vdisplay;
+			mdfld_dbi_dpu_report_damage(dev,
+				    i ? (MDFLD_PLANEC) : (MDFLD_PLANEA),
+				    &rect);
+		}
+	}
+	/* Exit DSR state */
+	mdfld_dpu_exit_dsr(dev);
+	return 0;
+}
+
+int mdfld_dsi_dbi_dsr_off(struct drm_device *dev,
+					struct psb_drm_dpu_rect *rect)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct mdfld_dbi_dpu_info *dpu_info = dev_priv->dbi_dpu_info;
+
+	mdfld_dbi_dpu_report_damage(dev, MDFLD_PLANEA, rect);
+
+	/* If dual display mode */
+	if (dpu_info->dbi_output_num == 2)
+		mdfld_dbi_dpu_report_damage(dev, MDFLD_PLANEC, rect);
+
+	/* Force dsi to exit DSR mode */
+	mdfld_dpu_exit_dsr(dev);
+	return 0;
+}
+
+static void mdfld_dpu_cursor_plane_flush(struct mdfld_dbi_dpu_info *dpu_info,
+						 mdfld_plane_t plane)
+{
+	struct drm_device *dev = dpu_info->dev;
+	u32 curpos_reg = CURAPOS;
+	u32 curbase_reg = CURABASE;
+	u32 curcntr_reg = CURACNTR;
+	struct mdfld_cursor_info *cursor = &dpu_info->cursors[0];
+
+	if (plane == MDFLD_CURSORC) {
+		curpos_reg = CURCPOS;
+		curbase_reg = CURCBASE;
+		curcntr_reg = CURCCNTR;
+		cursor = &dpu_info->cursors[1];
+	}
+
+	REG_WRITE(curcntr_reg, REG_READ(curcntr_reg));
+	REG_WRITE(curpos_reg,
+		(((cursor->x & CURSOR_POS_MASK) << CURSOR_X_SHIFT) |
+		((cursor->y & CURSOR_POS_MASK) << CURSOR_Y_SHIFT)));
+	REG_WRITE(curbase_reg, REG_READ(curbase_reg));
+}
+
+static void mdfld_dpu_fb_plane_flush(struct mdfld_dbi_dpu_info *dpu_info,
+						 mdfld_plane_t plane)
+{
+	u32 pipesrc_reg = PIPEASRC;
+	u32 dspsize_reg = DSPASIZE;
+	u32 dspoff_reg = DSPALINOFF;
+	u32 dspsurf_reg = DSPASURF;
+	u32 dspstride_reg = DSPASTRIDE;
+	u32 stride;
+	struct psb_drm_dpu_rect *rect = &dpu_info->damage_pipea;
+	struct drm_device *dev = dpu_info->dev;
+
+	if (plane == MDFLD_PLANEC) {
+		pipesrc_reg = PIPECSRC;
+		dspsize_reg = DSPCSIZE;
+		dspoff_reg = DSPCLINOFF;
+		dspsurf_reg = DSPCSURF;
+		dspstride_reg = DSPCSTRIDE;
+		rect = &dpu_info->damage_pipec;
+	}
+
+	stride = REG_READ(dspstride_reg);
+	/* FIXME: should I do the pipe src update here? */
+	REG_WRITE(pipesrc_reg, ((rect->width - 1) << 16) | (rect->height - 1));
+	/* Flush plane */
+	REG_WRITE(dspsize_reg, ((rect->height - 1) << 16) | (rect->width - 1));
+	REG_WRITE(dspoff_reg, ((rect->x * 4) + (rect->y * stride)));
+	REG_WRITE(dspsurf_reg, REG_READ(dspsurf_reg));
+
+	/*
+	 * TODO: wait for flip finished and restore the pipesrc reg,
+	 * or cursor will be show at a wrong position
+	 */
+}
+
+static void mdfld_dpu_overlay_plane_flush(struct mdfld_dbi_dpu_info *dpu_info,
+						  mdfld_plane_t plane)
+{
+}
+
+/*
+ * TODO: we are still in dbi normal mode now, we will try to use partial
+ * mode later.
+ */
+static int mdfld_dbi_prepare_cb(struct mdfld_dsi_dbi_output *dbi_output,
+				struct mdfld_dbi_dpu_info *dpu_info, int pipe)
+{
+	u8 *cb_addr = (u8 *)dbi_output->dbi_cb_addr;
+	u32 *index;
+	struct psb_drm_dpu_rect *rect = pipe ?
+		(&dpu_info->damage_pipec) : (&dpu_info->damage_pipea);
+
+	/* FIXME: lock command buffer, this may lead to a deadlock,
+	   as we already hold the dpu_update_lock */
+	if (!spin_trylock(&dbi_output->cb_lock)) {
+		DRM_ERROR("lock command buffer failed, try again\n");
+		return -EAGAIN;
+	}
+
+	index = &dbi_output->cb_write;
+
+	if (*index) {
+		DRM_ERROR("DBI command buffer unclean\n");
+		return -EAGAIN;
+	}
+
+	/* Column address */
+	*(cb_addr + ((*index)++)) = set_column_address;
+	*(cb_addr + ((*index)++)) = rect->x >> 8;
+	*(cb_addr + ((*index)++)) = rect->x;
+	*(cb_addr + ((*index)++)) = (rect->x + rect->width - 1) >> 8;
+	*(cb_addr + ((*index)++)) = (rect->x + rect->width - 1);
+
+	*index = 8;
+
+	/* Page address */
+	*(cb_addr + ((*index)++)) = set_page_addr;
+	*(cb_addr + ((*index)++)) = rect->y >> 8;
+	*(cb_addr + ((*index)++)) = rect->y;
+	*(cb_addr + ((*index)++)) = (rect->y + rect->height - 1) >> 8;
+	*(cb_addr + ((*index)++)) = (rect->y + rect->height - 1);
+
+	*index = 16;
+
+	/*write memory*/
+	*(cb_addr + ((*index)++)) = write_mem_start;
+
+	return 0;
+}
+
+static int mdfld_dbi_flush_cb(struct mdfld_dsi_dbi_output *dbi_output, int pipe)
+{
+	u32 cmd_phy = dbi_output->dbi_cb_phy;
+	u32 *index = &dbi_output->cb_write;
+	int reg_offset = pipe ? MIPIC_REG_OFFSET : 0;
+	struct drm_device *dev = dbi_output->dev;
+
+	if (*index == 0 || !dbi_output)
+		return 0;
+
+	REG_WRITE((MIPIA_CMD_LEN_REG + reg_offset), 0x010505);
+	REG_WRITE((MIPIA_CMD_ADD_REG + reg_offset), cmd_phy | 3);
+
+	*index = 0;
+
+	/* FIXME: unlock command buffer */
+	spin_unlock(&dbi_output->cb_lock);
+	return 0;
+}
+
+static int mdfld_dpu_update_pipe(struct mdfld_dsi_dbi_output *dbi_output,
+				 struct mdfld_dbi_dpu_info *dpu_info, int pipe)
+{
+	struct drm_device *dev =  dbi_output->dev;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	mdfld_plane_t cursor_plane = MDFLD_CURSORA;
+	mdfld_plane_t fb_plane = MDFLD_PLANEA;
+	mdfld_plane_t overlay_plane = MDFLD_OVERLAYA;
+	int ret = 0;
+	u32 plane_mask = MDFLD_PIPEA_PLANE_MASK;
+
+	/* Damaged rects on this pipe */
+	if (pipe) {
+		cursor_plane = MDFLD_CURSORC;
+		fb_plane = MDFLD_PLANEC;
+		overlay_plane = MDFLD_OVERLAYC;
+		plane_mask = MDFLD_PIPEC_PLANE_MASK;
+	}
+
+	/*update cursor which assigned to @pipe*/
+	if (dpu_info->pending & (1 << cursor_plane))
+		mdfld_dpu_cursor_plane_flush(dpu_info, cursor_plane);
+
+	/*update fb which assigned to @pipe*/
+	if (dpu_info->pending & (1 << fb_plane))
+		mdfld_dpu_fb_plane_flush(dpu_info, fb_plane);
+
+	/* TODO: update overlay */
+	if (dpu_info->pending & (1 << overlay_plane))
+		mdfld_dpu_overlay_plane_flush(dpu_info, overlay_plane);
+
+	/* Flush damage area to panel fb */
+	if (dpu_info->pending & plane_mask) {
+		ret = mdfld_dbi_prepare_cb(dbi_output, dpu_info, pipe);
+		/*
+		 * TODO: remove b_dsr_enable later,
+		 * added it so that text console could boot smoothly
+		 */
+		/* Clean pending flags on this pipe */
+		if (!ret && dev_priv->b_dsr_enable) {
+			dpu_info->pending &= ~plane_mask;
+			/* Reset overlay pipe damage rect */
+			mdfld_dpu_init_damage(dpu_info, pipe);
+		}
+	}
+	return ret;
+}
+
+static int mdfld_dpu_update_fb(struct drm_device *dev)
+{
+	struct drm_crtc *crtc;
+	struct psb_intel_crtc *psb_crtc;
+	struct mdfld_dsi_dbi_output **dbi_output;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct mdfld_dbi_dpu_info *dpu_info = dev_priv->dbi_dpu_info;
+	bool pipe_updated[2];
+	unsigned long irq_flags;
+	u32 dpll_reg = MRST_DPLL_A;
+	u32 dspcntr_reg = DSPACNTR;
+	u32 pipeconf_reg = PIPEACONF;
+	u32 dsplinoff_reg = DSPALINOFF;
+	u32 dspsurf_reg = DSPASURF;
+	u32 mipi_state_reg = MIPIA_INTR_STAT_REG;
+	u32 reg_offset = 0;
+	int pipe;
+	int i;
+	int ret;
+
+	dbi_output = dpu_info->dbi_outputs;
+	pipe_updated[0] = pipe_updated[1] = false;
+
+	if (!gma_power_begin(dev, true))
+		return -EAGAIN;
+
+	/* Try to prevent any new damage reports */
+	if (!spin_trylock_irqsave(&dpu_info->dpu_update_lock, irq_flags))
+		return -EAGAIN;
+
+	for (i = 0; i < dpu_info->dbi_output_num; i++) {
+		crtc = dbi_output[i]->base.base.crtc;
+		psb_crtc = (crtc) ? to_psb_intel_crtc(crtc) : NULL;
+
+		pipe = dbi_output[i]->channel_num ? 2 : 0;
+
+		if (pipe == 2) {
+			dspcntr_reg = DSPCCNTR;
+			pipeconf_reg = PIPECCONF;
+			dsplinoff_reg = DSPCLINOFF;
+			dspsurf_reg = DSPCSURF;
+			reg_offset = MIPIC_REG_OFFSET;
+		}
+
+		if (!(REG_READ((MIPIA_GEN_FIFO_STAT_REG + reg_offset))
+							& (1 << 27)) ||
+			!(REG_READ(dpll_reg) & DPLL_VCO_ENABLE) ||
+			!(REG_READ(dspcntr_reg) & DISPLAY_PLANE_ENABLE) ||
+			!(REG_READ(pipeconf_reg) & DISPLAY_PLANE_ENABLE)) {
+			dev_err(dev->dev,
+				"DBI FIFO is busy, DSI %d state %x\n",
+				pipe,
+				REG_READ(mipi_state_reg + reg_offset));
+			continue;
+		}
+
+		/*
+		 *	If DBI output is in a exclusive state then the pipe
+		 *	change won't be updated
+		 */
+		if (dbi_output[i]->dbi_panel_on &&
+		   !(dbi_output[i]->mode_flags & MODE_SETTING_ON_GOING) &&
+		   !(psb_crtc &&
+			psb_crtc->mode_flags & MODE_SETTING_ON_GOING) &&
+		   !(dbi_output[i]->mode_flags & MODE_SETTING_IN_DSR)) {
+			ret = mdfld_dpu_update_pipe(dbi_output[i],
+				dpu_info, dbi_output[i]->channel_num ? 2 : 0);
+			if (!ret)
+				pipe_updated[i] = true;
+		}
+	}
+
+	for (i = 0; i < dpu_info->dbi_output_num; i++)
+		if (pipe_updated[i])
+			mdfld_dbi_flush_cb(dbi_output[i],
+				dbi_output[i]->channel_num ? 2 : 0);
+
+	spin_unlock_irqrestore(&dpu_info->dpu_update_lock, irq_flags);
+	gma_power_end(dev);
+	return 0;
+}
+
+static int __mdfld_dbi_exit_dsr(struct mdfld_dsi_dbi_output *dbi_output,
+								int pipe)
+{
+	struct drm_device *dev = dbi_output->dev;
+	struct drm_crtc *crtc = dbi_output->base.base.crtc;
+	struct psb_intel_crtc *psb_crtc = (crtc) ? to_psb_intel_crtc(crtc)
+								: NULL;
+	u32 reg_val;
+	u32 dpll_reg = MRST_DPLL_A;
+	u32 pipeconf_reg = PIPEACONF;
+	u32 dspcntr_reg = DSPACNTR;
+	u32 dspbase_reg = DSPABASE;
+	u32 dspsurf_reg = DSPASURF;
+	u32 reg_offset = 0;
+
+	if (!dbi_output)
+		return 0;
+
+	/*if mode setting on-going, back off*/
+	if ((dbi_output->mode_flags & MODE_SETTING_ON_GOING) ||
+		(psb_crtc && psb_crtc->mode_flags & MODE_SETTING_ON_GOING))
+		return -EAGAIN;
+
+	if (pipe == 2) {
+		dpll_reg = MRST_DPLL_A;
+		pipeconf_reg = PIPECCONF;
+		dspcntr_reg = DSPCCNTR;
+		dspbase_reg = MDFLD_DSPCBASE;
+		dspsurf_reg = DSPCSURF;
+
+		reg_offset = MIPIC_REG_OFFSET;
+	}
+
+	if (!ospm_power_using_hw_begin(OSPM_DISPLAY_ISLAND, true))
+		return -EAGAIN;
+
+	/* Enable DPLL */
+	reg_val = REG_READ(dpll_reg);
+	if (!(reg_val & DPLL_VCO_ENABLE)) {
+
+		if (reg_val & MDFLD_PWR_GATE_EN) {
+			reg_val &= ~MDFLD_PWR_GATE_EN;
+			REG_WRITE(dpll_reg, reg_val);
+			REG_READ(dpll_reg);
+			udelay(500);
+		}
+
+		reg_val |= DPLL_VCO_ENABLE;
+		REG_WRITE(dpll_reg, reg_val);
+		REG_READ(dpll_reg);
+		udelay(500);
+
+		/* FIXME: add timeout */
+		while (!(REG_READ(pipeconf_reg) & PIPECONF_DSIPLL_LOCK))
+			cpu_relax();
+	}
+
+	/* Enable pipe */
+	reg_val = REG_READ(pipeconf_reg);
+	if (!(reg_val & PIPEACONF_ENABLE)) {
+		reg_val |= PIPEACONF_ENABLE;
+		REG_WRITE(pipeconf_reg, reg_val);
+		REG_READ(pipeconf_reg);
+		udelay(500);
+		mdfldWaitForPipeEnable(dev, pipe);
+	}
+
+	/* Enable plane */
+	reg_val = REG_READ(dspcntr_reg);
+	if (!(reg_val & DISPLAY_PLANE_ENABLE)) {
+		reg_val |= DISPLAY_PLANE_ENABLE;
+		REG_WRITE(dspcntr_reg, reg_val);
+		REG_READ(dspcntr_reg);
+		udelay(500);
+	}
+
+	ospm_power_using_hw_end(OSPM_DISPLAY_ISLAND);
+
+	/*clean IN_DSR flag*/
+	dbi_output->mode_flags &= ~MODE_SETTING_IN_DSR;
+
+	return 0;
+}
+
+int mdfld_dpu_exit_dsr(struct drm_device *dev)
+{
+	struct mdfld_dsi_dbi_output **dbi_output;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct mdfld_dbi_dpu_info *dpu_info = dev_priv->dbi_dpu_info;
+	int i;
+	int pipe;
+
+	dbi_output = dpu_info->dbi_outputs;
+
+	for (i = 0; i < dpu_info->dbi_output_num; i++) {
+		/* If this output is not in DSR mode, don't call exit dsr */
+		if (dbi_output[i]->mode_flags & MODE_SETTING_IN_DSR)
+			__mdfld_dbi_exit_dsr(dbi_output[i],
+					dbi_output[i]->channel_num ? 2 : 0);
+	}
+
+	/* Enable TE interrupt */
+	for (i = 0; i < dpu_info->dbi_output_num; i++) {
+		/* If this output is not in DSR mode, don't call exit dsr */
+		pipe = dbi_output[i]->channel_num ? 2 : 0;
+		if (dbi_output[i]->dbi_panel_on && pipe) {
+			mdfld_disable_te(dev, 0);
+			mdfld_enable_te(dev, 2);
+		} else if (dbi_output[i]->dbi_panel_on && !pipe) {
+			mdfld_disable_te(dev, 2);
+			mdfld_enable_te(dev, 0);
+		}
+	}
+	return 0;
+}
+
+static int mdfld_dpu_enter_dsr(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct mdfld_dbi_dpu_info *dpu_info = dev_priv->dbi_dpu_info;
+	struct mdfld_dsi_dbi_output **dbi_output;
+	int i;
+
+	dbi_output = dpu_info->dbi_outputs;
+
+	for (i = 0; i < dpu_info->dbi_output_num; i++) {
+		/* If output is off or already in DSR state, don't re-enter */
+		if (dbi_output[i]->dbi_panel_on &&
+		   !(dbi_output[i]->mode_flags & MODE_SETTING_IN_DSR)) {
+			mdfld_dsi_dbi_enter_dsr(dbi_output[i],
+				dbi_output[i]->channel_num ? 2 : 0);
+		}
+	}
+
+	return 0;
+}
+
+static void mdfld_dbi_dpu_timer_func(unsigned long data)
+{
+	struct drm_device *dev = (struct drm_device *)data;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct mdfld_dbi_dpu_info *dpu_info = dev_priv->dbi_dpu_info;
+	struct timer_list *dpu_timer = &dpu_info->dpu_timer;
+	unsigned long flags;
+
+	if (dpu_info->pending) {
+		dpu_info->idle_count = 0;
+		/* Update panel fb with damaged area */
+		mdfld_dpu_update_fb(dev);
+	} else {
+		dpu_info->idle_count++;
+	}
+
+	if (dpu_info->idle_count >= MDFLD_MAX_IDLE_COUNT) {
+		mdfld_dpu_enter_dsr(dev);
+		/* Stop timer by return */
+		return;
+	}
+
+	spin_lock_irqsave(&dpu_info->dpu_timer_lock, flags);
+	if (!timer_pending(dpu_timer)) {
+		dpu_timer->expires = jiffies + MDFLD_DSR_DELAY;
+		add_timer(dpu_timer);
+	}
+	spin_unlock_irqrestore(&dpu_info->dpu_timer_lock, flags);
+}
+
+void mdfld_dpu_update_panel(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct mdfld_dbi_dpu_info *dpu_info = dev_priv->dbi_dpu_info;
+
+	if (dpu_info->pending) {
+		dpu_info->idle_count = 0;
+
+		/*update panel fb with damaged area*/
+		mdfld_dpu_update_fb(dev);
+	} else {
+		dpu_info->idle_count++;
+	}
+
+	if (dpu_info->idle_count >= MDFLD_MAX_IDLE_COUNT) {
+		/*enter dsr*/
+		mdfld_dpu_enter_dsr(dev);
+	}
+}
+
+static int mdfld_dbi_dpu_timer_init(struct drm_device *dev,
+				struct mdfld_dbi_dpu_info *dpu_info)
+{
+	struct timer_list *dpu_timer = &dpu_info->dpu_timer;
+	unsigned long flags;
+
+	spin_lock_init(&dpu_info->dpu_timer_lock);
+	spin_lock_irqsave(&dpu_info->dpu_timer_lock, flags);
+
+	init_timer(dpu_timer);
+
+	dpu_timer->data = (unsigned long)dev;
+	dpu_timer->function = mdfld_dbi_dpu_timer_func;
+	dpu_timer->expires = jiffies + MDFLD_DSR_DELAY;
+
+	spin_unlock_irqrestore(&dpu_info->dpu_timer_lock, flags);
+
+	return 0;
+}
+
+void mdfld_dbi_dpu_timer_start(struct mdfld_dbi_dpu_info *dpu_info)
+{
+	struct timer_list *dpu_timer = &dpu_info->dpu_timer;
+	unsigned long flags;
+
+	spin_lock_irqsave(&dpu_info->dpu_timer_lock, flags);
+	if (!timer_pending(dpu_timer)) {
+		dpu_timer->expires = jiffies + MDFLD_DSR_DELAY;
+		add_timer(dpu_timer);
+	}
+	spin_unlock_irqrestore(&dpu_info->dpu_timer_lock, flags);
+}
+
+int mdfld_dbi_dpu_init(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct mdfld_dbi_dpu_info *dpu_info = dev_priv->dbi_dpu_info;
+
+	if (!dpu_info || IS_ERR(dpu_info)) {
+		dpu_info = kzalloc(sizeof(struct mdfld_dbi_dpu_info),
+								GFP_KERNEL);
+		if (!dpu_info) {
+			DRM_ERROR("No memory\n");
+			return -ENOMEM;
+		}
+		dev_priv->dbi_dpu_info = dpu_info;
+	}
+
+	dpu_info->dev = dev;
+
+	dpu_info->cursors[0].size = MDFLD_CURSOR_SIZE;
+	dpu_info->cursors[1].size = MDFLD_CURSOR_SIZE;
+
+	/*init dpu_update_lock*/
+	spin_lock_init(&dpu_info->dpu_update_lock);
+
+	/*init dpu refresh timer*/
+	mdfld_dbi_dpu_timer_init(dev, dpu_info);
+
+	/*init pipe damage area*/
+	mdfld_dpu_init_damage(dpu_info, 0);
+	mdfld_dpu_init_damage(dpu_info, 2);
+
+	return 0;
+}
+
+void mdfld_dbi_dpu_exit(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct mdfld_dbi_dpu_info *dpu_info = dev_priv->dbi_dpu_info;
+
+	if (!dpu_info)
+		return;
+
+	del_timer_sync(&dpu_info->dpu_timer);
+	kfree(dpu_info);
+	dev_priv->dbi_dpu_info = NULL;
+}
+
+

drivers/staging/gma500/mdfld_dsi_output.c

@@ -46,7 +46,7 @@ module_param (LABC_control, int, 0644);
  * we don't need 'movl' everytime we send them.
  * FIXME: these datas were provided by OEM, we should get them from GCT.
  **/
-static const u32 mdfld_dbi_mcs_hysteresis[] = {
+static u32 mdfld_dbi_mcs_hysteresis[] = {
 	0x42000f57, 0x8c006400, 0xff00bf00, 0xffffffff,
 	0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
 	0x38000aff, 0x82005000, 0xff00ab00, 0xffffffff,
@@ -54,16 +54,16 @@ static const u32 mdfld_dbi_mcs_hysteresis[] = {
 	0x000000ff,
 };
 
-static const u32 mdfld_dbi_mcs_display_profile[] = {
+static u32 mdfld_dbi_mcs_display_profile[] = {
 	0x50281450, 0x0000c882, 0x00000000, 0x00000000,
 	0x00000000,
 };
 
-static const u32 mdfld_dbi_mcs_kbbc_profile[] = {
+static u32 mdfld_dbi_mcs_kbbc_profile[] = {
 	0x00ffcc60, 0x00000000, 0x00000000, 0x00000000,
 }; 
 	
-static const u32 mdfld_dbi_mcs_gamma_profile[] = {
+static u32 mdfld_dbi_mcs_gamma_profile[] = {
 	0x81111158, 0x88888888, 0x88888888,
 }; 
 

drivers/staging/gma500/mdfld_intel_display.c

@@ -28,10 +28,7 @@
 #include "psb_intel_display.h"
 #include "mdfld_dsi_dbi.h"
 #include "mdfld_dsi_dpi.h"
-//#include "mdfld_dsi_output.h"
-#ifdef CONFIG_MDFLD_DSI_DPU
 #include "mdfld_dsi_dbi_dpu.h"
-#endif
 
 #include <linux/pm_runtime.h>
 
@@ -232,25 +229,23 @@ static int mdfld_intel_crtc_cursor_set(struct drm_crtc *crtc,
 		REG_WRITE(base, addr);
 		gma_power_end(dev);
 	}
-#if 0
-        /* FIXME: COnvert to GEM */
-	/* unpin the old bo */
-	if (psb_intel_crtc->cursor_bo && psb_intel_crtc->cursor_bo != bo) {
-		mode_dev->bo_unpin_for_scanout(dev, psb_intel_crtc->cursor_bo);
-		psb_intel_crtc->cursor_bo = bo;
+	/* unpin the old GEM object */
+	if (psb_intel_crtc->cursor_obj) {
+		gt = container_of(psb_intel_crtc->cursor_obj,
+							struct gtt_range, gem);
+		psb_gtt_unpin(gt);
+		drm_gem_object_unreference(psb_intel_crtc->cursor_obj);
+		psb_intel_crtc->cursor_obj = obj;
 	}
-#endif
 	return 0;
 }
 
 static int mdfld_intel_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
 {
 	struct drm_device *dev = crtc->dev;
-#ifndef CONFIG_MDFLD_DSI_DPU
 	struct drm_psb_private * dev_priv = (struct drm_psb_private *)dev->dev_private;
-#else
+	struct mdfld_dbi_dpu_info *dpu_info = dev_priv->dbi_dpu_info;
 	struct psb_drm_dpu_rect rect;
-#endif
 	struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
 	int pipe = psb_intel_crtc->pipe;
 	uint32_t pos = CURAPOS;
@@ -260,29 +255,25 @@ static int mdfld_intel_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
 
 	switch (pipe) {
 	case 0:
-#ifndef CONFIG_MDFLD_DSI_DPU
-		if (!(dev_priv->dsr_fb_update & MDFLD_DSR_CURSOR_0))
-			mdfld_dsi_dbi_exit_dsr (dev, MDFLD_DSR_CURSOR_0);
-#else /*CONFIG_MDFLD_DSI_DPU*/
-		rect.x = x;
-		rect.y = y;
+		if (dpu_info) {
+			rect.x = x;
+			rect.y = y;
 		
-		mdfld_dbi_dpu_report_damage(dev, MDFLD_CURSORA, &rect);
-		mdfld_dpu_exit_dsr(dev);
-#endif
+			mdfld_dbi_dpu_report_damage(dev, MDFLD_CURSORA, &rect);
+			mdfld_dpu_exit_dsr(dev);
+		} else if (!(dev_priv->dsr_fb_update & MDFLD_DSR_CURSOR_0))
+			mdfld_dsi_dbi_exit_dsr(dev, MDFLD_DSR_CURSOR_0);
 		break;
 	case 1:
 		pos = CURBPOS;
 		base = CURBBASE;
 		break;
 	case 2:
-#ifndef CONFIG_MDFLD_DSI_DPU
-		if (!(dev_priv->dsr_fb_update & MDFLD_DSR_CURSOR_2))
-			mdfld_dsi_dbi_exit_dsr (dev, MDFLD_DSR_CURSOR_2);
-#else /*CONFIG_MDFLD_DSI_DPU*/
-		mdfld_dbi_dpu_report_damage(dev, MDFLD_CURSORC, &rect);
-		mdfld_dpu_exit_dsr(dev);
-#endif
+		if (dpu_info) {
+			mdfld_dbi_dpu_report_damage(dev, MDFLD_CURSORC, &rect);
+			mdfld_dpu_exit_dsr(dev);
+		} else if (!(dev_priv->dsr_fb_update & MDFLD_DSR_CURSOR_2))
+			mdfld_dsi_dbi_exit_dsr(dev, MDFLD_DSR_CURSOR_2);
 		pos = CURCPOS;
 		base = CURCBASE;
 		break;

drivers/staging/gma500/mdfld_output.c

@@ -30,6 +30,7 @@
 #include "mdfld_dsi_dpi.h"
 #include "mdfld_dsi_output.h"
 #include "mdfld_output.h"
+#include "mdfld_dsi_dbi_dpu.h"
 
 #include "displays/tpo_cmd.h"
 #include "displays/tpo_vid.h"
@@ -39,6 +40,17 @@
 #include "displays/pyr_vid.h"
 /* #include "displays/hdmi.h" */
 
+static int mdfld_dual_mipi;
+static int mdfld_hdmi;
+static int mdfld_dpu;
+
+module_param(mdfld_dual_mipi, int, 0600);
+MODULE_PARM_DESC(mdfld_dual_mipi, "Enable dual MIPI configuration");
+module_param(mdfld_hdmi, int, 0600);
+MODULE_PARM_DESC(mdfld_hdmi, "Enable Medfield HDMI");
+module_param(mdfld_dpu, int, 0600);
+MODULE_PARM_DESC(mdfld_dpu, "Enable Medfield DPU");
+
 /* For now a single type per device is all we cope with */
 int mdfld_get_panel_type(struct drm_device *dev, int pipe)
 {
@@ -134,15 +146,25 @@ int mdfld_output_init(struct drm_device *dev)
 	dev_info(dev->dev, "panel 1: type is %d\n", type);
 	init_panel(dev, 0, type);
 
-#ifdef CONFIG_MDFD_DUAL_MIPI
-	/* MIPI panel 2 */
-	type = mdfld_get_panel_type(dev, 2);
-	dev_info(dev->dev, "panel 2: type is %d\n", type);
-	init_panel(dev, 2, type);
-#endif
-#ifdef CONFIG_MDFD_HDMI
-	/* HDMI panel */
-	init_panel(dev, 0, HDMI);
-#endif
+	if (mdfld_dual_mipi) {
+		/* MIPI panel 2 */
+		type = mdfld_get_panel_type(dev, 2);
+		dev_info(dev->dev, "panel 2: type is %d\n", type);
+		init_panel(dev, 2, type);
+	}
+	if (mdfld_hdmi)
+		/* HDMI panel */
+		init_panel(dev, 0, HDMI);
 	return 0;
 }
+
+void mdfld_output_setup(struct drm_device *dev)
+{
+	/* FIXME: this is not the right place for this stuff ! */
+	if (IS_MFLD(dev)) {
+		if (mdfld_dpu)
+			mdfld_dbi_dpu_init(dev);
+		else
+			mdfld_dbi_dsr_init(dev);
+	}
+}

drivers/staging/gma500/mdfld_output.h

@@ -36,4 +36,6 @@ void mdfld_disable_crtc (struct drm_device *dev, int pipe);
 extern const struct drm_crtc_helper_funcs mdfld_helper_funcs;
 extern const struct drm_crtc_funcs mdfld_intel_crtc_funcs;
 
+extern void mdfld_output_setup(struct drm_device *dev);
+
 #endif

drivers/staging/gma500/mdfld_pyr_cmd.c

@@ -29,7 +29,7 @@
 #include "mdfld_dsi_dpi.h"
 #include "mdfld_dsi_output.h"
 #include "mdfld_output.h"
-
+#include "mdfld_dsi_dbi_dpu.h"
 #include "mdfld_dsi_pkg_sender.h"
 
 #include "displays/pyr_cmd.h"
@@ -374,16 +374,11 @@ static void pyr_dsi_dbi_commit(struct drm_encoder *encoder)
 
 	if (dbi_output->channel_num == 1) {
 		dev_priv->dsr_fb_update |= MDFLD_DSR_2D_3D_2;
-#ifdef CONFIG_MDFLD_DSI_DPU
 		/* If DPU enabled report a fullscreen damage */
 		mdfld_dbi_dpu_report_damage(dev, MDFLD_PLANEC, &rect);
-#endif
 	} else {
 		dev_priv->dsr_fb_update |= MDFLD_DSR_2D_3D_0;
-
-#ifdef CONFIG_MDFLD_DSI_DPU
 		mdfld_dbi_dpu_report_damage(dev, MDFLD_PLANEA, &rect);
-#endif
 	}
 	dbi_output->mode_flags |= MODE_SETTING_ENCODER_DONE;
 }

drivers/staging/gma500/mdfld_tpo_cmd.c

@@ -29,7 +29,7 @@
 #include "mdfld_dsi_dpi.h"
 #include "mdfld_dsi_output.h"
 #include "mdfld_output.h"
-
+#include "mdfld_dsi_dbi_dpu.h"
 #include "mdfld_dsi_pkg_sender.h"
 
 #include "displays/tpo_cmd.h"
@@ -359,15 +359,11 @@ static void mdfld_dsi_dbi_commit(struct drm_encoder *encoder)
 
 	if (dbi_output->channel_num == 1) {
 		dev_priv->dsr_fb_update |= MDFLD_DSR_2D_3D_2;
-#ifdef CONFIG_MDFLD_DSI_DPU
 		/*if dpu enabled report a fullscreen damage*/
 		mdfld_dbi_dpu_report_damage(dev, MDFLD_PLANEC, &rect);
-#endif
 	} else {
 		dev_priv->dsr_fb_update |= MDFLD_DSR_2D_3D_0;
-#ifdef CONFIG_MDFLD_DSI_DPU
 		mdfld_dbi_dpu_report_damage(dev, MDFLD_PLANEA, &rect);
-#endif
 	}
 	dbi_output->mode_flags |= MODE_SETTING_ENCODER_DONE;
 }

drivers/staging/gma500/psb_drv.c

@@ -421,15 +421,7 @@ static int psb_driver_load(struct drm_device *dev, unsigned long chipset)
 
 #if defined(CONFIG_DRM_PSB_MFLD)
 	/* FIXME: this is not the right place for this stuff ! */
-	if (IS_MFLD(dev)) {
-#ifdef CONFIG_MDFLD_DSI_DPU
-		/*init dpu info*/
-		mdfld_dbi_dpu_init(dev);
-#else
-		mdfld_dbi_dsr_init(dev);
-#endif /*CONFIG_MDFLD_DSI_DPU*/
-		/* INIT_WORK(&dev_priv->te_work, mdfld_te_handler_work);*/
-	}
+	mdfld_output_setup(dev);
 #endif
 	if (drm_psb_no_fb == 0) {
 		psb_modeset_init(dev);
@@ -444,6 +436,7 @@ static int psb_driver_load(struct drm_device *dev, unsigned long chipset)
 
 		switch (psb_intel_output->type) {
 		case INTEL_OUTPUT_LVDS:
+		case INTEL_OUTPUT_MIPI:
 			ret = gma_backlight_init(dev);
 			break;
 		}