[Intel-gfx] [PATCH 11/59] drm/kmb: Use correct mmio offset from data book

Anitha Chrisanthus anitha.chrisanthus at intel.com
Tue Jun 30 21:27:23 UTC 2020


Also added separate macros for lcd and mipi register accesses that
use the corrected mmio offset. mmio oofset will be read from the device
tree in the future.

Signed-off-by: Anitha Chrisanthus <anitha.chrisanthus at intel.com>
Reviewed-by: Bob Paauwe <bob.j.paauwe at intel.com>
---
 drivers/gpu/drm/kmb/kmb_crtc.c  | 49 ++++++++++++++++++-----------------------
 drivers/gpu/drm/kmb/kmb_drv.c   | 18 ++++++---------
 drivers/gpu/drm/kmb/kmb_drv.h   | 47 ++++++++++++++++++++++++++++++++++++---
 drivers/gpu/drm/kmb/kmb_dsi.c   | 41 +++++++++++++++-------------------
 drivers/gpu/drm/kmb/kmb_plane.c | 34 ++++++++++++++--------------
 drivers/gpu/drm/kmb/kmb_regs.h  |  6 ++++-
 6 files changed, 113 insertions(+), 82 deletions(-)

diff --git a/drivers/gpu/drm/kmb/kmb_crtc.c b/drivers/gpu/drm/kmb/kmb_crtc.c
index 6f16410..8e127ae 100644
--- a/drivers/gpu/drm/kmb/kmb_crtc.c
+++ b/drivers/gpu/drm/kmb/kmb_crtc.c
@@ -52,25 +52,21 @@ static void kmb_crtc_cleanup(struct drm_crtc *crtc)
 
 static int kmb_crtc_enable_vblank(struct drm_crtc *crtc)
 {
-	struct kmb_drm_private *lcd = crtc_to_kmb_priv(crtc);
-
 	/*clear interrupt */
-	kmb_write(lcd, LCD_INT_CLEAR, LCD_INT_VERT_COMP);
+	kmb_write_lcd(LCD_INT_CLEAR, LCD_INT_VERT_COMP);
 	/*set which interval to generate vertical interrupt */
-	kmb_write(lcd, LCD_VSTATUS_COMPARE, LCD_VSTATUS_COMPARE_VSYNC);
+	kmb_write_lcd(LCD_VSTATUS_COMPARE, LCD_VSTATUS_COMPARE_VSYNC);
 	/* enable vertical interrupt */
-	kmb_write(lcd, LCD_INT_ENABLE, LCD_INT_VERT_COMP);
+	kmb_write_lcd(LCD_INT_ENABLE, LCD_INT_VERT_COMP);
 	return 0;
 }
 
 static void kmb_crtc_disable_vblank(struct drm_crtc *crtc)
 {
-	struct kmb_drm_private *lcd = crtc_to_kmb_priv(crtc);
-
 	/*clear interrupt */
-	kmb_write(lcd, LCD_INT_CLEAR, LCD_INT_VERT_COMP);
+	kmb_write_lcd(LCD_INT_CLEAR, LCD_INT_VERT_COMP);
 	/* disable vertical interrupt */
-	kmb_write(lcd, LCD_INT_ENABLE, 0);
+	kmb_write_lcd(LCD_INT_ENABLE, 0);
 
 /* TBD
  *  set the BIT2 (VERTICAL_COMPARE_INTERRUPT) of the LCD_INT_ENABLE register
@@ -92,7 +88,6 @@ static const struct drm_crtc_funcs kmb_crtc_funcs = {
 
 static void kmb_crtc_mode_set_nofb(struct drm_crtc *crtc)
 {
-	struct kmb_drm_private *lcd = crtc_to_kmb_priv(crtc);
 	struct drm_display_mode *m = &crtc->state->adjusted_mode;
 	struct videomode vm;
 	int vsync_start_offset;
@@ -109,30 +104,30 @@ static void kmb_crtc_mode_set_nofb(struct drm_crtc *crtc)
 	vsync_start_offset = m->crtc_vsync_start - m->crtc_hsync_start;
 	vsync_end_offset = m->crtc_vsync_end - m->crtc_hsync_end;
 
-	kmb_write(lcd, LCD_V_ACTIVEHEIGHT, m->crtc_vdisplay - 1);
-	kmb_write(lcd, LCD_V_BACKPORCH, vm.vback_porch - 1);
-	kmb_write(lcd, LCD_V_FRONTPORCH, vm.vfront_porch - 1);
-	kmb_write(lcd, LCD_VSYNC_WIDTH, vm.vsync_len - 1);
-	kmb_write(lcd, LCD_H_ACTIVEWIDTH, m->crtc_hdisplay - 1);
-	kmb_write(lcd, LCD_H_BACKPORCH, vm.hback_porch - 1);
-	kmb_write(lcd, LCD_H_FRONTPORCH, vm.hfront_porch - 1);
-	kmb_write(lcd, LCD_HSYNC_WIDTH, vm.hsync_len - 1);
+	kmb_write_lcd(LCD_V_ACTIVEHEIGHT, m->crtc_vdisplay - 1);
+	kmb_write_lcd(LCD_V_BACKPORCH, vm.vback_porch - 1);
+	kmb_write_lcd(LCD_V_FRONTPORCH, vm.vfront_porch - 1);
+	kmb_write_lcd(LCD_VSYNC_WIDTH, vm.vsync_len - 1);
+	kmb_write_lcd(LCD_H_ACTIVEWIDTH, m->crtc_hdisplay - 1);
+	kmb_write_lcd(LCD_H_BACKPORCH, vm.hback_porch - 1);
+	kmb_write_lcd(LCD_H_FRONTPORCH, vm.hfront_porch - 1);
+	kmb_write_lcd(LCD_HSYNC_WIDTH, vm.hsync_len - 1);
 
 	if (m->flags == DRM_MODE_FLAG_INTERLACE) {
-		kmb_write(lcd, LCD_VSYNC_WIDTH_EVEN, vm.vsync_len - 1);
-		kmb_write(lcd, LCD_V_BACKPORCH_EVEN, vm.vback_porch - 1);
-		kmb_write(lcd, LCD_V_FRONTPORCH_EVEN, vm.vfront_porch - 1);
-		kmb_write(lcd, LCD_V_ACTIVEHEIGHT_EVEN, m->crtc_vdisplay - 1);
-		kmb_write(lcd, LCD_VSYNC_START_EVEN, vsync_start_offset);
-		kmb_write(lcd, LCD_VSYNC_END_EVEN, vsync_end_offset);
+		kmb_write_lcd(LCD_VSYNC_WIDTH_EVEN, vm.vsync_len - 1);
+		kmb_write_lcd(LCD_V_BACKPORCH_EVEN, vm.vback_porch - 1);
+		kmb_write_lcd(LCD_V_FRONTPORCH_EVEN, vm.vfront_porch - 1);
+		kmb_write_lcd(LCD_V_ACTIVEHEIGHT_EVEN,	m->crtc_vdisplay - 1);
+		kmb_write_lcd(LCD_VSYNC_START_EVEN, vsync_start_offset);
+		kmb_write_lcd(LCD_VSYNC_END_EVEN, vsync_end_offset);
 	}
 	/* enable VL1 layer as default */
 	ctrl = LCD_CTRL_ENABLE | LCD_CTRL_VL1_ENABLE;
 	ctrl |= LCD_CTRL_PROGRESSIVE | LCD_CTRL_TIM_GEN_ENABLE
-	    | LCD_CTRL_OUTPUT_ENABLED;
-	kmb_write(lcd, LCD_CONTROL, ctrl);
+		| LCD_CTRL_OUTPUT_ENABLED;
+	kmb_write_lcd(LCD_CONTROL, ctrl);
 
-	kmb_write(lcd, LCD_TIMING_GEN_TRIG, ENABLE);
+	kmb_write_lcd(LCD_TIMING_GEN_TRIG, ENABLE);
 
 	/* TBD */
 	/* set clocks here */
diff --git a/drivers/gpu/drm/kmb/kmb_drv.c b/drivers/gpu/drm/kmb/kmb_drv.c
index 24e7c2b..0b99309 100644
--- a/drivers/gpu/drm/kmb/kmb_drv.c
+++ b/drivers/gpu/drm/kmb/kmb_drv.c
@@ -44,7 +44,6 @@
 #include <drm/drm_of.h>
 #include <drm/drm_irq.h>
 #include "kmb_drv.h"
-#include "kmb_regs.h"
 #include "kmb_crtc.h"
 #include "kmb_plane.h"
 #include "kmb_dsi.h"
@@ -120,21 +119,20 @@ static void kmb_setup_mode_config(struct drm_device *drm)
 static irqreturn_t kmb_irq(int irq, void *arg)
 {
 	struct drm_device *dev = (struct drm_device *)arg;
-	struct kmb_drm_private *lcd = dev->dev_private;
 	unsigned long status, val;
 
-	status = kmb_read(lcd, LCD_INT_STATUS);
+	status = kmb_read_lcd(LCD_INT_STATUS);
 	if (status & LCD_INT_EOF) {
 		/*To DO - handle EOF interrupt? */
-		kmb_write(lcd, LCD_INT_CLEAR, LCD_INT_EOF);
+		kmb_write_lcd(LCD_INT_CLEAR, LCD_INT_EOF);
 	}
 	if (status & LCD_INT_LINE_CMP) {
 		/* clear line compare interrupt */
-		kmb_write(lcd, LCD_INT_CLEAR, LCD_INT_LINE_CMP);
+		kmb_write_lcd(LCD_INT_CLEAR, LCD_INT_LINE_CMP);
 	}
 	if (status & LCD_INT_VERT_COMP) {
 		/* read VSTATUS */
-		val = kmb_read(lcd, LCD_VSTATUS);
+		val = kmb_read_lcd(LCD_VSTATUS);
 		val = (val & LCD_VSTATUS_VERTICAL_STATUS_MASK);
 		switch (val) {
 		case LCD_VSTATUS_COMPARE_VSYNC:
@@ -142,7 +140,7 @@ static irqreturn_t kmb_irq(int irq, void *arg)
 		case LCD_VSTATUS_COMPARE_ACTIVE:
 		case LCD_VSTATUS_COMPARE_FRONT_PORCH:
 			/* clear vertical compare interrupt */
-			kmb_write(lcd, LCD_INT_CLEAR, LCD_INT_VERT_COMP);
+			kmb_write_lcd(LCD_INT_CLEAR, LCD_INT_VERT_COMP);
 			drm_handle_vblank(dev, 0);
 			break;
 		}
@@ -153,10 +151,8 @@ static irqreturn_t kmb_irq(int irq, void *arg)
 
 static void kmb_irq_reset(struct drm_device *drm)
 {
-	struct kmb_drm_private *lcd = drm->dev_private;
-
-	kmb_write(lcd, LCD_INT_CLEAR, 0xFFFF);
-	kmb_write(lcd, LCD_INT_ENABLE, 0);
+	kmb_write_lcd(LCD_INT_CLEAR, 0xFFFF);
+	kmb_write_lcd(LCD_INT_ENABLE, 0);
 }
 
 DEFINE_DRM_GEM_CMA_FOPS(fops);
diff --git a/drivers/gpu/drm/kmb/kmb_drv.h b/drivers/gpu/drm/kmb/kmb_drv.h
index 46be8cb..a431785 100644
--- a/drivers/gpu/drm/kmb/kmb_drv.h
+++ b/drivers/gpu/drm/kmb/kmb_drv.h
@@ -26,8 +26,10 @@
 #ifndef __KMB_DRV_H__
 #define __KMB_DRV_H__
 
-#define KMB_MAX_WIDTH			16384	/*max width in pixels */
-#define KMB_MAX_HEIGHT			16384	/*max height in pixels */
+#include "kmb_regs.h"
+
+#define KMB_MAX_WIDTH			16384 /*max width in pixels */
+#define KMB_MAX_HEIGHT			16384 /*max height in pixels */
 
 struct kmb_drm_private {
 	struct drm_device drm;
@@ -50,7 +52,12 @@ static inline struct kmb_drm_private *to_kmb(const struct drm_device *dev)
 struct blt_layer_config {
 	unsigned char layer_format;
 };
-
+/*
+ * commenting this out to use hardcoded address for registers
+ * TODO we may need this later if we decide to get the address from
+ * the device tree
+ */
+#ifdef KMB_WRITE
 static inline void kmb_write(struct kmb_drm_private *lcd,
 			     unsigned int reg, u32 value)
 {
@@ -75,6 +82,40 @@ static inline void kmb_write_bits(struct kmb_drm_private *lcd,
 	reg_val |= (value << offset);
 	writel(reg_val, lcd->mmio + reg);
 }
+#endif
+
+static inline void kmb_write_lcd(unsigned int reg, u32 value)
+{
+	writel(value, (LCD_BASE_ADDR + reg));
+}
+
+static inline void kmb_write_mipi(unsigned int reg, u32 value)
+{
+	writel(value, (MIPI_BASE_ADDR + reg));
+}
+
+static inline u32 kmb_read_lcd(unsigned int reg)
+{
+	return readl(LCD_BASE_ADDR + reg);
+}
+
+static inline u32 kmb_read_mipi(unsigned int reg)
+{
+	return readl(MIPI_BASE_ADDR + reg);
+}
+
+static inline void kmb_write_bits_mipi(unsigned int reg, u32 offset,
+		u32 num_bits, u32 value)
+{
+	u32 reg_val = kmb_read_mipi(reg);
+	u32 mask = (1 << num_bits) - 1;
+
+	value &= mask;
+	mask <<= offset;
+	reg_val &= (~mask);
+	reg_val |= (value << offset);
+	kmb_write_mipi(reg, reg_val);
+}
 
 int kmb_setup_crtc(struct drm_device *dev);
 void kmb_set_scanout(struct kmb_drm_private *lcd);
diff --git a/drivers/gpu/drm/kmb/kmb_dsi.c b/drivers/gpu/drm/kmb/kmb_dsi.c
index 1435ed8..109c83b 100644
--- a/drivers/gpu/drm/kmb/kmb_dsi.c
+++ b/drivers/gpu/drm/kmb/kmb_dsi.c
@@ -343,8 +343,8 @@ static u32 mipi_tx_fg_section_cfg_regs(struct kmb_drm_private *dev_priv,
 	cfg |= ((ph_cfg->data_mode & MIPI_TX_SECT_DM_MASK)
 		<< MIPI_TX_SECT_DM_SHIFT);	/* bits [24:25] */
 	cfg |= MIPI_TX_SECT_DMA_PACKED;
-	kmb_write(dev_priv,
-		  (MIPI_TXm_HS_FGn_SECTo_PH(ctrl_no, frame_id, section)), cfg);
+	kmb_write_mipi((MIPI_TXm_HS_FGn_SECTo_PH(ctrl_no, frame_id,
+					section)), cfg);
 
 	/*unpacked bytes */
 	/*there are 4 frame generators and each fg has 4 sections
@@ -353,15 +353,13 @@ static u32 mipi_tx_fg_section_cfg_regs(struct kmb_drm_private *dev_priv,
 	 *REG_UNPACKED_BYTES0: [15:0]-BYTES0, [31:16]-BYTES1
 	 *REG_UNPACKED_BYTES1: [15:0]-BYTES2, [31:16]-BYTES3
 	 */
-	reg_adr =
-	    MIPI_TXm_HS_FGn_SECT_UNPACKED_BYTES0(ctrl_no,
-						 frame_id) + (section / 2) * 4;
-	kmb_write_bits(dev_priv, reg_adr, (section % 2) * 16, 16,
-		       unpacked_bytes);
+	reg_adr = MIPI_TXm_HS_FGn_SECT_UNPACKED_BYTES0(ctrl_no, frame_id)
+	+ (section/2)*4;
+	kmb_write_bits_mipi(reg_adr, (section % 2)*16, 16, unpacked_bytes);
 
 	/* line config */
 	reg_adr = MIPI_TXm_HS_FGn_SECTo_LINE_CFG(ctrl_no, frame_id, section);
-	kmb_write(dev_priv, reg_adr, height_lines);
+	kmb_write_mipi(reg_adr, height_lines);
 	return 0;
 }
 
@@ -437,7 +435,7 @@ static void mipi_tx_fg_cfg_regs(struct kmb_drm_private *dev_priv,
 
 	/*frame generator number of lines */
 	reg_adr = MIPI_TXm_HS_FGn_NUM_LINES(ctrl_no, frame_gen);
-	kmb_write(dev_priv, reg_adr, fg_cfg->v_active);
+	kmb_write_mipi(reg_adr, fg_cfg->v_active);
 
 	/*vsync width */
 	/*
@@ -447,34 +445,31 @@ static void mipi_tx_fg_cfg_regs(struct kmb_drm_private *dev_priv,
 	 */
 	offset = (frame_gen % 2) * 16;
 	reg_adr = MIPI_TXm_HS_VSYNC_WIDTHn(ctrl_no, frame_gen);
-	kmb_write_bits(dev_priv, reg_adr, offset, 16, fg_cfg->vsync_width);
+	kmb_write_bits_mipi(reg_adr, offset, 16, fg_cfg->vsync_width);
 
 	/*v backporch - same register config like vsync width */
 	reg_adr = MIPI_TXm_HS_V_BACKPORCHESn(ctrl_no, frame_gen);
-	kmb_write_bits(dev_priv, reg_adr, offset, 16, fg_cfg->v_backporch);
+	kmb_write_bits_mipi(reg_adr, offset, 16, fg_cfg->v_backporch);
 
 	/*v frontporch - same register config like vsync width */
 	reg_adr = MIPI_TXm_HS_V_FRONTPORCHESn(ctrl_no, frame_gen);
-	kmb_write_bits(dev_priv, reg_adr, offset, 16, fg_cfg->v_frontporch);
+	kmb_write_bits_mipi(reg_adr, offset, 16, fg_cfg->v_frontporch);
 
 	/*v active - same register config like vsync width */
 	reg_adr = MIPI_TXm_HS_V_ACTIVEn(ctrl_no, frame_gen);
-	kmb_write_bits(dev_priv, reg_adr, offset, 16, fg_cfg->v_active);
+	kmb_write_bits_mipi(reg_adr, offset, 16, fg_cfg->v_active);
 
 	/*hsyc width */
 	reg_adr = MIPI_TXm_HS_HSYNC_WIDTHn(ctrl_no, frame_gen);
-	kmb_write(dev_priv, reg_adr,
-		  (fg_cfg->hsync_width * ppl_llp_ratio) / 1000);
+	kmb_write_mipi(reg_adr, (fg_cfg->hsync_width * ppl_llp_ratio) / 1000);
 
 	/*h backporch */
 	reg_adr = MIPI_TXm_HS_H_BACKPORCHn(ctrl_no, frame_gen);
-	kmb_write(dev_priv, reg_adr,
-		  (fg_cfg->h_backporch * ppl_llp_ratio) / 1000);
+	kmb_write_mipi(reg_adr, (fg_cfg->h_backporch * ppl_llp_ratio) / 1000);
 
 	/*h frontporch */
 	reg_adr = MIPI_TXm_HS_H_FRONTPORCHn(ctrl_no, frame_gen);
-	kmb_write(dev_priv, reg_adr,
-		  (fg_cfg->h_frontporch * ppl_llp_ratio) / 1000);
+	kmb_write_mipi(reg_adr, (fg_cfg->h_frontporch * ppl_llp_ratio) / 1000);
 
 	/*h active */
 	reg_adr = MIPI_TXm_HS_H_ACTIVEn(ctrl_no, frame_gen);
@@ -482,19 +477,19 @@ static void mipi_tx_fg_cfg_regs(struct kmb_drm_private *dev_priv,
 	val = (fg_cfg->h_active * sysclk * 1000) /
 	    ((fg_cfg->lane_rate_mbps / 8) * fg_cfg->active_lanes);
 	val /= 1000;
-	kmb_write(dev_priv, reg_adr, val);
+	kmb_write_mipi(reg_adr, val);
 
 	/* llp hsync width */
 	reg_adr = MIPI_TXm_HS_LLP_HSYNC_WIDTHn(ctrl_no, frame_gen);
-	kmb_write(dev_priv, reg_adr, fg_cfg->hsync_width * (fg_cfg->bpp / 8));
+	kmb_write_mipi(reg_adr, fg_cfg->hsync_width * (fg_cfg->bpp / 8));
 
 	/* llp h backporch */
 	reg_adr = MIPI_TXm_HS_LLP_H_BACKPORCHn(ctrl_no, frame_gen);
-	kmb_write(dev_priv, reg_adr, fg_cfg->h_backporch * (fg_cfg->bpp / 8));
+	kmb_write_mipi(reg_adr, fg_cfg->h_backporch * (fg_cfg->bpp / 8));
 
 	/* llp h frontporch */
 	reg_adr = MIPI_TXm_HS_LLP_H_FRONTPORCHn(ctrl_no, frame_gen);
-	kmb_write(dev_priv, reg_adr, fg_cfg->h_frontporch * (fg_cfg->bpp / 8));
+	kmb_write_mipi(reg_adr, fg_cfg->h_frontporch * (fg_cfg->bpp / 8));
 }
 
 static void mipi_tx_fg_cfg(struct kmb_drm_private *dev_priv, u8 frame_gen,
diff --git a/drivers/gpu/drm/kmb/kmb_plane.c b/drivers/gpu/drm/kmb/kmb_plane.c
index f609283..66d6c9f 100644
--- a/drivers/gpu/drm/kmb/kmb_plane.c
+++ b/drivers/gpu/drm/kmb/kmb_plane.c
@@ -242,16 +242,16 @@ static void kmb_plane_atomic_update(struct drm_plane *plane,
 	crtc_x = plane->state->crtc_x;
 	crtc_y = plane->state->crtc_y;
 
-	kmb_write(lcd, LCD_LAYERn_WIDTH(plane_id), src_w - 1);
-	kmb_write(lcd, LCD_LAYERn_HEIGHT(plane_id), src_h - 1);
-	kmb_write(lcd, LCD_LAYERn_COL_START(plane_id), crtc_x);
-	kmb_write(lcd, LCD_LAYERn_ROW_START(plane_id), crtc_y);
+	kmb_write_lcd(LCD_LAYERn_WIDTH(plane_id), src_w-1);
+	kmb_write_lcd(LCD_LAYERn_HEIGHT(plane_id), src_h-1);
+	kmb_write_lcd(LCD_LAYERn_COL_START(plane_id), crtc_x);
+	kmb_write_lcd(LCD_LAYERn_ROW_START(plane_id), crtc_y);
 
 	val = set_pixel_format(fb->format->format);
 	val |= set_bits_per_pixel(fb->format);
 	/*CHECKME Leon drvr sets it to 50 try this for now */
 	val |= LCD_LAYER_FIFO_50;
-	kmb_write(lcd, LCD_LAYERn_CFG(plane_id), val);
+	kmb_write_lcd(LCD_LAYERn_CFG(plane_id), val);
 
 	switch (plane_id) {
 	case LAYER_0:
@@ -270,8 +270,8 @@ static void kmb_plane_atomic_update(struct drm_plane *plane,
 
 	ctrl |= LCD_CTRL_ENABLE;
 	ctrl |= LCD_CTRL_PROGRESSIVE | LCD_CTRL_TIM_GEN_ENABLE
-	    | LCD_CTRL_OUTPUT_ENABLED;
-	kmb_write(lcd, LCD_CONTROL, ctrl);
+		| LCD_CTRL_OUTPUT_ENABLED;
+	kmb_write_lcd(LCD_CONTROL, ctrl);
 
 	/*TBD check visible? */
 
@@ -280,24 +280,24 @@ static void kmb_plane_atomic_update(struct drm_plane *plane,
 	    | LCD_DMA_LAYER_CONT_UPDATE | LCD_DMA_LAYER_AXI_BURST_1;
 
 	/* disable DMA first */
-	kmb_write(lcd, LCD_LAYERn_DMA_CFG(plane_id), ~LCD_DMA_LAYER_ENABLE);
+	kmb_write_lcd(LCD_LAYERn_DMA_CFG(plane_id), ~LCD_DMA_LAYER_ENABLE);
 
 	addr = drm_fb_cma_get_gem_addr(fb, plane->state, plane_id);
-	kmb_write(lcd, LCD_LAYERn_DMA_START_ADDR(plane_id), addr);
-	kmb_write(lcd, LCD_LAYERn_DMA_START_SHADOW(plane_id), addr);
+	kmb_write_lcd(LCD_LAYERn_DMA_START_ADDR(plane_id), addr);
+	kmb_write_lcd(LCD_LAYERn_DMA_START_SHADOW(plane_id), addr);
 
 	width = fb->width;
 	height = fb->height;
 	dma_len = width * height * fb->format->cpp[plane_id];
-	kmb_write(lcd, LCD_LAYERn_DMA_LEN(plane_id), dma_len);
+	kmb_write_lcd(LCD_LAYERn_DMA_LEN(plane_id), dma_len);
 
-	kmb_write(lcd, LCD_LAYERn_DMA_LINE_VSTRIDE(plane_id),
-		  fb->pitches[plane_id]);
-	kmb_write(lcd, LCD_LAYERn_DMA_LINE_WIDTH(plane_id),
-		  (width * fb->format->cpp[plane_id]));
+	kmb_write_lcd(LCD_LAYERn_DMA_LINE_VSTRIDE(plane_id),
+			fb->pitches[plane_id]);
+	kmb_write_lcd(LCD_LAYERn_DMA_LINE_WIDTH(plane_id),
+			(width*fb->format->cpp[plane_id]));
 
 	/* enable DMA */
-	kmb_write(lcd, LCD_LAYERn_DMA_CFG(plane_id), dma_cfg);
+	kmb_write_lcd(LCD_LAYERn_DMA_CFG(plane_id), dma_cfg);
 
 	/* FIXME no doc on how to set output format - may need to change
 	 * this later
@@ -310,7 +310,7 @@ static void kmb_plane_atomic_update(struct drm_plane *plane,
 	out_format |= LCD_OUTF_MIPI_RGB_MODE;
 	/* pixel format from LCD_LAYER_CFG */
 	out_format |= ((val >> 9) & 0x1F);
-	kmb_write(lcd, LCD_OUT_FORMAT_CFG, out_format);
+	kmb_write_lcd(LCD_OUT_FORMAT_CFG, out_format);
 }
 
 static const struct drm_plane_helper_funcs kmb_plane_helper_funcs = {
diff --git a/drivers/gpu/drm/kmb/kmb_regs.h b/drivers/gpu/drm/kmb/kmb_regs.h
index 8715c7b..d1f8174 100644
--- a/drivers/gpu/drm/kmb/kmb_regs.h
+++ b/drivers/gpu/drm/kmb/kmb_regs.h
@@ -27,6 +27,11 @@
 #define __KMB_REGS_H__
 
 #define ENABLE					 1
+/*from Data Book section 12.5.8.1 page 4322 */
+#define MIPI_BASE_ADDR                          (void *)(0x20900000)
+/*from Data Book section 12.11.6.1 page 4972 */
+#define LCD_BASE_ADDR                           (void *)(0x20930000)
+
 /***************************************************************************
  *		   LCD controller control register defines
  ***************************************************************************/
@@ -388,7 +393,6 @@
 /***************************************************************************
  *		   MIPI controller control register defines
  ***********************************************i****************************/
-#define MIPI_BASE_ADDR				(0x20900000)
 #define MIPI0_HS_BASE_ADDR			(MIPI_BASE_ADDR + 0x400)
 #define MIPI_CTRL_HS_BASE_ADDR			(0x400)
 #define MIPI_TX0_HS_FG0_SECT0_PH		(0x40)
-- 
2.7.4



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