20 files changed, 53 insertions, 349 deletions

diff --git a/drivers/gpu/drm/gma500/Kconfig b/drivers/gpu/drm/gma500/Kconfig
index ec395658a43f..0cff20265f97 100644
--- a/drivers/gpu/drm/gma500/Kconfig
+++ b/drivers/gpu/drm/gma500/Kconfig
@@ -9,12 +9,5 @@ config DRM_GMA500
 	select INPUT if ACPI
 	help
 	  Say yes for an experimental 2D KMS framebuffer driver for the
-	  Intel GMA500 ('Poulsbo') and other Intel IMG based graphics
-	  devices.
-
-config DRM_GMA600
-	bool "Intel GMA600 support (Experimental)"
-	depends on DRM_GMA500
-	help
-	  Say yes to include support for GMA600 (Intel Moorestown/Oaktrail)
-	  platforms with LVDS ports. MIPI is not currently supported.
+	  Intel GMA500 (Poulsbo), Intel GMA600 (Moorestown/Oak Trail) and
+	  Intel GMA3600/3650 (Cedar Trail).
diff --git a/drivers/gpu/drm/gma500/Makefile b/drivers/gpu/drm/gma500/Makefile
index 884ab1f9063e..63012bf2485a 100644
--- a/drivers/gpu/drm/gma500/Makefile
+++ b/drivers/gpu/drm/gma500/Makefile
@@ -4,9 +4,7 @@
 #
 
 gma500_gfx-y += \
-	  accel_2d.o \
 	  backlight.o \
-	  blitter.o \
 	  cdv_device.o \
 	  cdv_intel_crt.o \
 	  cdv_intel_display.o \
@@ -23,6 +21,12 @@ gma500_gfx-y += \
 	  intel_i2c.o \
 	  mid_bios.o \
 	  mmu.o \
+	  oaktrail_device.o \
+	  oaktrail_crtc.o \
+	  oaktrail_hdmi.o \
+	  oaktrail_hdmi_i2c.o \
+	  oaktrail_lvds.o \
+	  oaktrail_lvds_i2c.o \
 	  power.o \
 	  psb_device.o \
 	  psb_drv.o \
@@ -33,13 +37,6 @@ gma500_gfx-y += \
 	  psb_lid.o \
 	  psb_irq.o
 
-gma500_gfx-$(CONFIG_ACPI) +=  opregion.o \
-
-gma500_gfx-$(CONFIG_DRM_GMA600) += oaktrail_device.o \
-	  oaktrail_crtc.o \
-	  oaktrail_lvds.o \
-	  oaktrail_lvds_i2c.o \
-	  oaktrail_hdmi.o \
-	  oaktrail_hdmi_i2c.o
+gma500_gfx-$(CONFIG_ACPI) +=  opregion.o
 
 obj-$(CONFIG_DRM_GMA500) += gma500_gfx.o
diff --git a/drivers/gpu/drm/gma500/accel_2d.c b/drivers/gpu/drm/gma500/accel_2d.c
deleted file mode 100644
index 437bbb6af9e6..000000000000
--- a/drivers/gpu/drm/gma500/accel_2d.c
+++ /dev/null
@@ -1,60 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/**************************************************************************
- * Copyright (c) 2007-2011, Intel Corporation.
- * All Rights Reserved.
- *
- * Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to
- * develop this driver.
- *
- **************************************************************************/
-
-#include <linux/console.h>
-#include <linux/delay.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/string.h>
-#include <linux/tty.h>
-
-#include <drm/drm.h>
-#include <drm/drm_crtc.h>
-#include <drm/drm_fb_helper.h>
-#include <drm/drm_fourcc.h>
-
-#include "psb_drv.h"
-#include "psb_reg.h"
-
-/**
- *	psb_spank		-	reset the 2D engine
- *	@dev_priv: our PSB DRM device
- *
- *	Soft reset the graphics engine and then reload the necessary registers.
- *	We use this at initialisation time but it will become relevant for
- *	accelerated X later
- */
-void psb_spank(struct drm_psb_private *dev_priv)
-{
-	PSB_WSGX32(_PSB_CS_RESET_BIF_RESET | _PSB_CS_RESET_DPM_RESET |
-		_PSB_CS_RESET_TA_RESET | _PSB_CS_RESET_USE_RESET |
-		_PSB_CS_RESET_ISP_RESET | _PSB_CS_RESET_TSP_RESET |
-		_PSB_CS_RESET_TWOD_RESET, PSB_CR_SOFT_RESET);
-	PSB_RSGX32(PSB_CR_SOFT_RESET);
-
-	msleep(1);
-
-	PSB_WSGX32(0, PSB_CR_SOFT_RESET);
-	wmb();
-	PSB_WSGX32(PSB_RSGX32(PSB_CR_BIF_CTRL) | _PSB_CB_CTRL_CLEAR_FAULT,
-		   PSB_CR_BIF_CTRL);
-	wmb();
-	(void) PSB_RSGX32(PSB_CR_BIF_CTRL);
-
-	msleep(1);
-	PSB_WSGX32(PSB_RSGX32(PSB_CR_BIF_CTRL) & ~_PSB_CB_CTRL_CLEAR_FAULT,
-		   PSB_CR_BIF_CTRL);
-	(void) PSB_RSGX32(PSB_CR_BIF_CTRL);
-	PSB_WSGX32(dev_priv->gtt.gatt_start, PSB_CR_BIF_TWOD_REQ_BASE);
-}
diff --git a/drivers/gpu/drm/gma500/blitter.c b/drivers/gpu/drm/gma500/blitter.c
deleted file mode 100644
index cb2504a4a15f..000000000000
--- a/drivers/gpu/drm/gma500/blitter.c
+++ /dev/null
@@ -1,43 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (c) 2014, Patrik Jakobsson
- * All Rights Reserved.
- *
- * Authors: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
- */
-
-#include "psb_drv.h"
-
-#include "blitter.h"
-#include "psb_reg.h"
-
-/* Wait for the blitter to be completely idle */
-int gma_blt_wait_idle(struct drm_psb_private *dev_priv)
-{
-	unsigned long stop = jiffies + HZ;
-	int busy = 1;
-
-	/* NOP for Cedarview */
-	if (IS_CDV(dev_priv->dev))
-		return 0;
-
-	/* First do a quick check */
-	if ((PSB_RSGX32(PSB_CR_2D_SOCIF) == _PSB_C2_SOCIF_EMPTY) &&
-	    ((PSB_RSGX32(PSB_CR_2D_BLIT_STATUS) & _PSB_C2B_STATUS_BUSY) == 0))
-		return 0;
-
-	do {
-		busy = (PSB_RSGX32(PSB_CR_2D_SOCIF) != _PSB_C2_SOCIF_EMPTY);
-	} while (busy && !time_after_eq(jiffies, stop));
-
-	if (busy)
-		return -EBUSY;
-
-	do {
-		busy = ((PSB_RSGX32(PSB_CR_2D_BLIT_STATUS) &
-			_PSB_C2B_STATUS_BUSY) != 0);
-	} while (busy && !time_after_eq(jiffies, stop));
-
-	/* If still busy, we probably have a hang */
-	return (busy) ? -EBUSY : 0;
-}
diff --git a/drivers/gpu/drm/gma500/blitter.h b/drivers/gpu/drm/gma500/blitter.h
deleted file mode 100644
index 8d67dabd9ba3..000000000000
--- a/drivers/gpu/drm/gma500/blitter.h
+++ /dev/null
@@ -1,16 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright (c) 2014, Patrik Jakobsson
- * All Rights Reserved.
- *
- * Authors: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
- */
-
-#ifndef __BLITTER_H
-#define __BLITTER_H
-
-struct drm_psb_private;
-
-extern int gma_blt_wait_idle(struct drm_psb_private *dev_priv);
-
-#endif
diff --git a/drivers/gpu/drm/gma500/cdv_device.c b/drivers/gpu/drm/gma500/cdv_device.c
index 19e055dbd4c2..1342e7fb382f 100644
--- a/drivers/gpu/drm/gma500/cdv_device.c
+++ b/drivers/gpu/drm/gma500/cdv_device.c
@@ -603,7 +603,7 @@ const struct psb_ops cdv_chip_ops = {
 	.errata = cdv_errata,
 
 	.crtc_helper = &cdv_intel_helper_funcs,
-	.crtc_funcs = &cdv_intel_crtc_funcs,
+	.crtc_funcs = &gma_intel_crtc_funcs,
 	.clock_funcs = &cdv_clock_funcs,
 
 	.output_init = cdv_output_init,
diff --git a/drivers/gpu/drm/gma500/cdv_device.h b/drivers/gpu/drm/gma500/cdv_device.h
index 37e4bdc84c03..504d717385cd 100644
--- a/drivers/gpu/drm/gma500/cdv_device.h
+++ b/drivers/gpu/drm/gma500/cdv_device.h
@@ -8,7 +8,6 @@ struct drm_device;
 struct psb_intel_mode_device;
 
 extern const struct drm_crtc_helper_funcs cdv_intel_helper_funcs;
-extern const struct drm_crtc_funcs cdv_intel_crtc_funcs;
 extern const struct gma_clock_funcs cdv_clock_funcs;
 extern void cdv_intel_crt_init(struct drm_device *dev,
 			struct psb_intel_mode_device *mode_dev);
diff --git a/drivers/gpu/drm/gma500/cdv_intel_crt.c b/drivers/gpu/drm/gma500/cdv_intel_crt.c
index c48c9d322dfb..4a9bb4994a26 100644
--- a/drivers/gpu/drm/gma500/cdv_intel_crt.c
+++ b/drivers/gpu/drm/gma500/cdv_intel_crt.c
@@ -248,8 +248,6 @@ void cdv_intel_crt_init(struct drm_device *dev,
 	struct drm_connector *connector;
 	struct drm_encoder *encoder;
 
-	u32 i2c_reg;
-
 	gma_encoder = kzalloc(sizeof(struct gma_encoder), GFP_KERNEL);
 	if (!gma_encoder)
 		return;
@@ -269,24 +267,13 @@ void cdv_intel_crt_init(struct drm_device *dev,
 	gma_connector_attach_encoder(gma_connector, gma_encoder);
 
 	/* Set up the DDC bus. */
-	i2c_reg = GPIOA;
-	/* Remove the following code for CDV */
-	/*
-	if (dev_priv->crt_ddc_bus != 0)
-		i2c_reg = dev_priv->crt_ddc_bus;
-	}*/
-	gma_encoder->ddc_bus = psb_intel_i2c_create(dev,
-							  i2c_reg, "CRTDDC_A");
+	gma_encoder->ddc_bus = psb_intel_i2c_create(dev, GPIOA, "CRTDDC_A");
 	if (!gma_encoder->ddc_bus) {
 		dev_printk(KERN_ERR, dev->dev, "DDC bus registration failed.\n");
 		goto failed_ddc;
 	}
 
 	gma_encoder->type = INTEL_OUTPUT_ANALOG;
-	/*
-	psb_intel_output->clone_mask = (1 << INTEL_ANALOG_CLONE_BIT);
-	psb_intel_output->crtc_mask = (1 << 0) | (1 << 1);
-	*/
 	connector->interlace_allowed = 0;
 	connector->doublescan_allowed = 0;
 
diff --git a/drivers/gpu/drm/gma500/cdv_intel_display.c b/drivers/gpu/drm/gma500/cdv_intel_display.c
index 5d3302249779..c3a9f6b3c848 100644
--- a/drivers/gpu/drm/gma500/cdv_intel_display.c
+++ b/drivers/gpu/drm/gma500/cdv_intel_display.c
@@ -582,7 +582,7 @@ static int cdv_intel_crtc_mode_set(struct drm_crtc *crtc,
 	struct gma_clock_t clock;
 	u32 dpll = 0, dspcntr, pipeconf;
 	bool ok;
-	bool is_lvds = false, is_tv = false;
+	bool is_lvds = false;
 	bool is_dp = false;
 	struct drm_mode_config *mode_config = &dev->mode_config;
 	struct drm_connector *connector;
@@ -603,9 +603,6 @@ static int cdv_intel_crtc_mode_set(struct drm_crtc *crtc,
 		case INTEL_OUTPUT_LVDS:
 			is_lvds = true;
 			break;
-		case INTEL_OUTPUT_TVOUT:
-			is_tv = true;
-			break;
 		case INTEL_OUTPUT_ANALOG:
 		case INTEL_OUTPUT_HDMI:
 			break;
@@ -660,12 +657,6 @@ static int cdv_intel_crtc_mode_set(struct drm_crtc *crtc,
 	}
 
 	dpll = DPLL_VGA_MODE_DIS;
-	if (is_tv) {
-		/* XXX: just matching BIOS for now */
-/*	dpll |= PLL_REF_INPUT_TVCLKINBC; */
-		dpll |= 3;
-	}
-/*		dpll |= PLL_REF_INPUT_DREFCLK; */
 
 	if (is_dp || is_edp) {
 		cdv_intel_dp_set_m_n(crtc, mode, adjusted_mode);
@@ -970,18 +961,6 @@ const struct drm_crtc_helper_funcs cdv_intel_helper_funcs = {
 	.disable = gma_crtc_disable,
 };
 
-const struct drm_crtc_funcs cdv_intel_crtc_funcs = {
-	.cursor_set = gma_crtc_cursor_set,
-	.cursor_move = gma_crtc_cursor_move,
-	.gamma_set = gma_crtc_gamma_set,
-	.set_config = gma_crtc_set_config,
-	.destroy = gma_crtc_destroy,
-	.page_flip = gma_crtc_page_flip,
-	.enable_vblank = psb_enable_vblank,
-	.disable_vblank = psb_disable_vblank,
-	.get_vblank_counter = psb_get_vblank_counter,
-};
-
 const struct gma_clock_funcs cdv_clock_funcs = {
 	.clock = cdv_intel_clock,
 	.limit = cdv_intel_limit,
diff --git a/drivers/gpu/drm/gma500/gtt.c b/drivers/gpu/drm/gma500/gtt.c
index e884750bc123..df9b611b856a 100644
--- a/drivers/gpu/drm/gma500/gtt.c
+++ b/drivers/gpu/drm/gma500/gtt.c
@@ -11,7 +11,6 @@
 
 #include <asm/set_memory.h>
 
-#include "blitter.h"
 #include "psb_drv.h"
 
 
@@ -229,18 +228,9 @@ void psb_gtt_unpin(struct gtt_range *gt)
 	struct drm_device *dev = gt->gem.dev;
 	struct drm_psb_private *dev_priv = dev->dev_private;
 	u32 gpu_base = dev_priv->gtt.gatt_start;
-	int ret;
 
-	/* While holding the gtt_mutex no new blits can be initiated */
 	mutex_lock(&dev_priv->gtt_mutex);
 
-	/* Wait for any possible usage of the memory to be finished */
-	ret = gma_blt_wait_idle(dev_priv);
-	if (ret) {
-		DRM_ERROR("Failed to idle the blitter, unpin failed!");
-		goto out;
-	}
-
 	WARN_ON(!gt->in_gart);
 
 	gt->in_gart--;
@@ -251,7 +241,6 @@ void psb_gtt_unpin(struct gtt_range *gt)
 		psb_gtt_detach_pages(gt);
 	}
 
-out:
 	mutex_unlock(&dev_priv->gtt_mutex);
 }
 
diff --git a/drivers/gpu/drm/gma500/intel_gmbus.c b/drivers/gpu/drm/gma500/intel_gmbus.c
index 370bd6451bd9..eb0924473a21 100644
--- a/drivers/gpu/drm/gma500/intel_gmbus.c
+++ b/drivers/gpu/drm/gma500/intel_gmbus.c
@@ -44,13 +44,13 @@
 			ret__ = -ETIMEDOUT;				\
 			break;						\
 		}							\
-		if (W && !(in_atomic() || in_dbg_master())) msleep(W);	\
+		if (W && !(in_dbg_master()))				\
+			msleep(W);					\
 	}								\
 	ret__;								\
 })
 
 #define wait_for(COND, MS) _wait_for(COND, MS, 1)
-#define wait_for_atomic(COND, MS) _wait_for(COND, MS, 0)
 
 #define GMBUS_REG_READ(reg) ioread32(dev_priv->gmbus_reg + (reg))
 #define GMBUS_REG_WRITE(reg, val) iowrite32((val), dev_priv->gmbus_reg + (reg))
diff --git a/drivers/gpu/drm/gma500/oaktrail_device.c b/drivers/gpu/drm/gma500/oaktrail_device.c
index aff0534831ef..454156fcbec7 100644
--- a/drivers/gpu/drm/gma500/oaktrail_device.c
+++ b/drivers/gpu/drm/gma500/oaktrail_device.c
@@ -545,7 +545,7 @@ const struct psb_ops oaktrail_chip_ops = {
 	.chip_setup = oaktrail_chip_setup,
 	.chip_teardown = oaktrail_teardown,
 	.crtc_helper = &oaktrail_helper_funcs,
-	.crtc_funcs = &psb_intel_crtc_funcs,
+	.crtc_funcs = &gma_intel_crtc_funcs,
 
 	.output_init = oaktrail_output_init,
 
diff --git a/drivers/gpu/drm/gma500/power.c b/drivers/gpu/drm/gma500/power.c
index 56ef88237ef6..f07641dfa5a4 100644
--- a/drivers/gpu/drm/gma500/power.c
+++ b/drivers/gpu/drm/gma500/power.c
@@ -36,7 +36,7 @@
 #include <linux/pm_runtime.h>
 
 static struct mutex power_mutex;	/* Serialize power ops */
-static spinlock_t power_ctrl_lock;	/* Serialize power claim */
+static DEFINE_SPINLOCK(power_ctrl_lock);	/* Serialize power claim */
 
 /**
  *	gma_power_init		-	initialise power manager
@@ -55,7 +55,6 @@ void gma_power_init(struct drm_device *dev)
 	dev_priv->display_power = true;	/* We start active */
 	dev_priv->display_count = 0;	/* Currently no users */
 	dev_priv->suspended = false;	/* And not suspended */
-	spin_lock_init(&power_ctrl_lock);
 	mutex_init(&power_mutex);
 
 	if (dev_priv->ops->init_pm)
diff --git a/drivers/gpu/drm/gma500/psb_device.c b/drivers/gpu/drm/gma500/psb_device.c
index 2d21f8ec595f..951725a0f7a3 100644
--- a/drivers/gpu/drm/gma500/psb_device.c
+++ b/drivers/gpu/drm/gma500/psb_device.c
@@ -329,7 +329,7 @@ const struct psb_ops psb_chip_ops = {
 	.chip_teardown = psb_chip_teardown,
 
 	.crtc_helper = &psb_intel_helper_funcs,
-	.crtc_funcs = &psb_intel_crtc_funcs,
+	.crtc_funcs = &gma_intel_crtc_funcs,
 	.clock_funcs = &psb_clock_funcs,
 
 	.output_init = psb_output_init,
diff --git a/drivers/gpu/drm/gma500/psb_drv.c b/drivers/gpu/drm/gma500/psb_drv.c
index 0bcab065242c..3850842d58f3 100644
--- a/drivers/gpu/drm/gma500/psb_drv.c
+++ b/drivers/gpu/drm/gma500/psb_drv.c
@@ -12,6 +12,7 @@
 #include <linux/notifier.h>
 #include <linux/pm_runtime.h>
 #include <linux/spinlock.h>
+#include <linux/delay.h>
 
 #include <asm/set_memory.h>
 
@@ -54,7 +55,7 @@ static const struct pci_device_id pciidlist[] = {
 	/* Poulsbo */
 	{ 0x8086, 0x8108, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &psb_chip_ops },
 	{ 0x8086, 0x8109, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &psb_chip_ops },
-#if defined(CONFIG_DRM_GMA600)
+	/* Oak Trail */
 	{ 0x8086, 0x4100, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops },
 	{ 0x8086, 0x4101, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops },
 	{ 0x8086, 0x4102, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops },
@@ -64,8 +65,7 @@ static const struct pci_device_id pciidlist[] = {
 	{ 0x8086, 0x4106, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops },
 	{ 0x8086, 0x4107, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops },
 	{ 0x8086, 0x4108, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops },
-#endif
-	/* Cedartrail */
+	/* Cedar Trail */
 	{ 0x8086, 0x0be0, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
 	{ 0x8086, 0x0be1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
 	{ 0x8086, 0x0be2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },
@@ -92,6 +92,36 @@ MODULE_DEVICE_TABLE(pci, pciidlist);
 static const struct drm_ioctl_desc psb_ioctls[] = {
 };
 
+/**
+ *	psb_spank		-	reset the 2D engine
+ *	@dev_priv: our PSB DRM device
+ *
+ *	Soft reset the graphics engine and then reload the necessary registers.
+ */
+void psb_spank(struct drm_psb_private *dev_priv)
+{
+	PSB_WSGX32(_PSB_CS_RESET_BIF_RESET | _PSB_CS_RESET_DPM_RESET |
+		_PSB_CS_RESET_TA_RESET | _PSB_CS_RESET_USE_RESET |
+		_PSB_CS_RESET_ISP_RESET | _PSB_CS_RESET_TSP_RESET |
+		_PSB_CS_RESET_TWOD_RESET, PSB_CR_SOFT_RESET);
+	PSB_RSGX32(PSB_CR_SOFT_RESET);
+
+	msleep(1);
+
+	PSB_WSGX32(0, PSB_CR_SOFT_RESET);
+	wmb();
+	PSB_WSGX32(PSB_RSGX32(PSB_CR_BIF_CTRL) | _PSB_CB_CTRL_CLEAR_FAULT,
+		   PSB_CR_BIF_CTRL);
+	wmb();
+	(void) PSB_RSGX32(PSB_CR_BIF_CTRL);
+
+	msleep(1);
+	PSB_WSGX32(PSB_RSGX32(PSB_CR_BIF_CTRL) & ~_PSB_CB_CTRL_CLEAR_FAULT,
+		   PSB_CR_BIF_CTRL);
+	(void) PSB_RSGX32(PSB_CR_BIF_CTRL);
+	PSB_WSGX32(dev_priv->gtt.gatt_start, PSB_CR_BIF_TWOD_REQ_BASE);
+}
+
 static int psb_do_init(struct drm_device *dev)
 {
 	struct drm_psb_private *dev_priv = dev->dev_private;
@@ -303,7 +333,7 @@ static int psb_driver_load(struct drm_device *dev, unsigned long flags)
 
 	ret = -ENOMEM;
 
-	dev_priv->mmu = psb_mmu_driver_init(dev, 1, 0, 0);
+	dev_priv->mmu = psb_mmu_driver_init(dev, 1, 0, NULL);
 	if (!dev_priv->mmu)
 		goto out_err;
 
diff --git a/drivers/gpu/drm/gma500/psb_drv.h b/drivers/gpu/drm/gma500/psb_drv.h
index 694495070c65..49afa577d442 100644
--- a/drivers/gpu/drm/gma500/psb_drv.h
+++ b/drivers/gpu/drm/gma500/psb_drv.h
@@ -625,13 +625,9 @@ static inline struct drm_psb_private *psb_priv(struct drm_device *dev)
 
 /* psb_irq.c */
 extern irqreturn_t psb_irq_handler(int irq, void *arg);
-extern int psb_irq_enable_dpst(struct drm_device *dev);
-extern int psb_irq_disable_dpst(struct drm_device *dev);
 extern void psb_irq_preinstall(struct drm_device *dev);
 extern int psb_irq_postinstall(struct drm_device *dev);
 extern void psb_irq_uninstall(struct drm_device *dev);
-extern void psb_irq_turn_on_dpst(struct drm_device *dev);
-extern void psb_irq_turn_off_dpst(struct drm_device *dev);
 
 extern void psb_irq_uninstall_islands(struct drm_device *dev, int hw_islands);
 extern int psb_vblank_wait2(struct drm_device *dev, unsigned int *sequence);
@@ -679,7 +675,7 @@ extern void oaktrail_lvds_init(struct drm_device *dev,
 
 /* psb_intel_display.c */
 extern const struct drm_crtc_helper_funcs psb_intel_helper_funcs;
-extern const struct drm_crtc_funcs psb_intel_crtc_funcs;
+extern const struct drm_crtc_funcs gma_intel_crtc_funcs;
 
 /* psb_intel_lvds.c */
 extern const struct drm_connector_helper_funcs
diff --git a/drivers/gpu/drm/gma500/psb_intel_display.c b/drivers/gpu/drm/gma500/psb_intel_display.c
index 9c3cb1b80bbd..359606429316 100644
--- a/drivers/gpu/drm/gma500/psb_intel_display.c
+++ b/drivers/gpu/drm/gma500/psb_intel_display.c
@@ -426,7 +426,7 @@ const struct drm_crtc_helper_funcs psb_intel_helper_funcs = {
 	.disable = gma_crtc_disable,
 };
 
-const struct drm_crtc_funcs psb_intel_crtc_funcs = {
+const struct drm_crtc_funcs gma_intel_crtc_funcs = {
 	.cursor_set = gma_crtc_cursor_set,
 	.cursor_move = gma_crtc_cursor_move,
 	.gamma_set = gma_crtc_gamma_set,
diff --git a/drivers/gpu/drm/gma500/psb_intel_reg.h b/drivers/gpu/drm/gma500/psb_intel_reg.h
index 364ea8f06f9c..ced7b433befb 100644
--- a/drivers/gpu/drm/gma500/psb_intel_reg.h
+++ b/drivers/gpu/drm/gma500/psb_intel_reg.h
@@ -550,38 +550,6 @@
 #define HISTOGRAM_INT_CTRL_CLEAR		(1UL << 30)
 #define DPST_YUV_LUMA_MODE			0
 
-struct dpst_ie_histogram_control {
-	union {
-		uint32_t data;
-		struct {
-			uint32_t bin_reg_index:7;
-			uint32_t reserved:4;
-			uint32_t bin_reg_func_select:1;
-			uint32_t sync_to_phase_in:1;
-			uint32_t alt_enhancement_mode:2;
-			uint32_t reserved1:1;
-			uint32_t sync_to_phase_in_count:8;
-			uint32_t histogram_mode_select:1;
-			uint32_t reserved2:4;
-			uint32_t ie_pipe_assignment:1;
-			uint32_t ie_mode_table_enabled:1;
-			uint32_t ie_histogram_enable:1;
-		};
-	};
-};
-
-struct dpst_guardband {
-	union {
-		uint32_t data;
-		struct {
-			uint32_t guardband:22;
-			uint32_t guardband_interrupt_delay:8;
-			uint32_t interrupt_status:1;
-			uint32_t interrupt_enable:1;
-		};
-	};
-};
-
 #define PIPEAFRAMEHIGH		0x70040
 #define PIPEAFRAMEPIXEL		0x70044
 #define PIPEBFRAMEHIGH		0x71040
diff --git a/drivers/gpu/drm/gma500/psb_irq.c b/drivers/gpu/drm/gma500/psb_irq.c
index ae9b100e640b..104009e78487 100644
--- a/drivers/gpu/drm/gma500/psb_irq.c
+++ b/drivers/gpu/drm/gma500/psb_irq.c
@@ -101,30 +101,6 @@ psb_disable_pipestat(struct drm_psb_private *dev_priv, int pipe, u32 mask)
 	}
 }
 
-static void mid_enable_pipe_event(struct drm_psb_private *dev_priv, int pipe)
-{
-	if (gma_power_begin(dev_priv->dev, false)) {
-		u32 pipe_event = mid_pipe_event(pipe);
-		dev_priv->vdc_irq_mask |= pipe_event;
-		PSB_WVDC32(~dev_priv->vdc_irq_mask, PSB_INT_MASK_R);
-		PSB_WVDC32(dev_priv->vdc_irq_mask, PSB_INT_ENABLE_R);
-		gma_power_end(dev_priv->dev);
-	}
-}
-
-static void mid_disable_pipe_event(struct drm_psb_private *dev_priv, int pipe)
-{
-	if (dev_priv->pipestat[pipe] == 0) {
-		if (gma_power_begin(dev_priv->dev, false)) {
-			u32 pipe_event = mid_pipe_event(pipe);
-			dev_priv->vdc_irq_mask &= ~pipe_event;
-			PSB_WVDC32(~dev_priv->vdc_irq_mask, PSB_INT_MASK_R);
-			PSB_WVDC32(dev_priv->vdc_irq_mask, PSB_INT_ENABLE_R);
-			gma_power_end(dev_priv->dev);
-		}
-	}
-}
-
 /*
  * Display controller interrupt handler for pipe event.
  */
@@ -392,92 +368,6 @@ void psb_irq_uninstall(struct drm_device *dev)
 	spin_unlock_irqrestore(&dev_priv->irqmask_lock, irqflags);
 }
 
-void psb_irq_turn_on_dpst(struct drm_device *dev)
-{
-	struct drm_psb_private *dev_priv =
-		(struct drm_psb_private *) dev->dev_private;
-	u32 hist_reg;
-	u32 pwm_reg;
-
-	if (gma_power_begin(dev, false)) {
-		PSB_WVDC32(1 << 31, HISTOGRAM_LOGIC_CONTROL);
-		hist_reg = PSB_RVDC32(HISTOGRAM_LOGIC_CONTROL);
-		PSB_WVDC32(1 << 31, HISTOGRAM_INT_CONTROL);
-		hist_reg = PSB_RVDC32(HISTOGRAM_INT_CONTROL);
-
-		PSB_WVDC32(0x80010100, PWM_CONTROL_LOGIC);
-		pwm_reg = PSB_RVDC32(PWM_CONTROL_LOGIC);
-		PSB_WVDC32(pwm_reg | PWM_PHASEIN_ENABLE
-						| PWM_PHASEIN_INT_ENABLE,
-							   PWM_CONTROL_LOGIC);
-		pwm_reg = PSB_RVDC32(PWM_CONTROL_LOGIC);
-
-		psb_enable_pipestat(dev_priv, 0, PIPE_DPST_EVENT_ENABLE);
-
-		hist_reg = PSB_RVDC32(HISTOGRAM_INT_CONTROL);
-		PSB_WVDC32(hist_reg | HISTOGRAM_INT_CTRL_CLEAR,
-							HISTOGRAM_INT_CONTROL);
-		pwm_reg = PSB_RVDC32(PWM_CONTROL_LOGIC);
-		PSB_WVDC32(pwm_reg | 0x80010100 | PWM_PHASEIN_ENABLE,
-							PWM_CONTROL_LOGIC);
-
-		gma_power_end(dev);
-	}
-}
-
-int psb_irq_enable_dpst(struct drm_device *dev)
-{
-	struct drm_psb_private *dev_priv =
-		(struct drm_psb_private *) dev->dev_private;
-	unsigned long irqflags;
-
-	spin_lock_irqsave(&dev_priv->irqmask_lock, irqflags);
-
-	/* enable DPST */
-	mid_enable_pipe_event(dev_priv, 0);
-	psb_irq_turn_on_dpst(dev);
-
-	spin_unlock_irqrestore(&dev_priv->irqmask_lock, irqflags);
-	return 0;
-}
-
-void psb_irq_turn_off_dpst(struct drm_device *dev)
-{
-	struct drm_psb_private *dev_priv =
-	    (struct drm_psb_private *) dev->dev_private;
-	u32 pwm_reg;
-
-	if (gma_power_begin(dev, false)) {
-		PSB_WVDC32(0x00000000, HISTOGRAM_INT_CONTROL);
-		PSB_RVDC32(HISTOGRAM_INT_CONTROL);
-
-		psb_disable_pipestat(dev_priv, 0, PIPE_DPST_EVENT_ENABLE);
-
-		pwm_reg = PSB_RVDC32(PWM_CONTROL_LOGIC);
-		PSB_WVDC32(pwm_reg & ~PWM_PHASEIN_INT_ENABLE,
-							PWM_CONTROL_LOGIC);
-		pwm_reg = PSB_RVDC32(PWM_CONTROL_LOGIC);
-
-		gma_power_end(dev);
-	}
-}
-
-int psb_irq_disable_dpst(struct drm_device *dev)
-{
-	struct drm_psb_private *dev_priv =
-	    (struct drm_psb_private *) dev->dev_private;
-	unsigned long irqflags;
-
-	spin_lock_irqsave(&dev_priv->irqmask_lock, irqflags);
-
-	mid_disable_pipe_event(dev_priv, 0);
-	psb_irq_turn_off_dpst(dev);
-
-	spin_unlock_irqrestore(&dev_priv->irqmask_lock, irqflags);
-
-	return 0;
-}
-
 /*
  * It is used to enable VBLANK interrupt
  */
diff --git a/drivers/gpu/drm/gma500/psb_irq.h b/drivers/gpu/drm/gma500/psb_irq.h
index 1b577fa7010a..17c9b0b62471 100644
--- a/drivers/gpu/drm/gma500/psb_irq.h
+++ b/drivers/gpu/drm/gma500/psb_irq.h
@@ -23,10 +23,6 @@ int  psb_irq_postinstall(struct drm_device *dev);
 void psb_irq_uninstall(struct drm_device *dev);
 irqreturn_t psb_irq_handler(int irq, void *arg);
 
-int psb_irq_enable_dpst(struct drm_device *dev);
-int psb_irq_disable_dpst(struct drm_device *dev);
-void psb_irq_turn_on_dpst(struct drm_device *dev);
-void psb_irq_turn_off_dpst(struct drm_device *dev);
 int  psb_enable_vblank(struct drm_crtc *crtc);
 void psb_disable_vblank(struct drm_crtc *crtc);
 u32  psb_get_vblank_counter(struct drm_crtc *crtc);