On 11/14/2014 8:24 PM, Jani Nikula wrote:
MIPI DSI works on ports A and C, which map to pipes A and B,
respectively. Things are going to get more complicated with the
introduction of dual link DSI support, so clean up the register defines
and code to match reality.

Signed-off-by: Jani Nikula <jani.nik...@intel.com>
---
  drivers/gpu/drm/i915/i915_reg.h      | 303 ++++++++++++++++++-----------------
  drivers/gpu/drm/i915/intel_dsi.c     | 148 ++++++++---------
  drivers/gpu/drm/i915/intel_dsi.h     |  16 ++
  drivers/gpu/drm/i915/intel_dsi_cmd.c |  64 ++++----
  4 files changed, 277 insertions(+), 254 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index a143127eb451..250043f3f22e 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -31,6 +31,8 @@
  #define _PORT(port, a, b) ((a) + (port)*((b)-(a)))
  #define _PIPE3(pipe, a, b, c) ((pipe) == PIPE_A ? (a) : \
                               (pipe) == PIPE_B ? (b) : (c))
+#define _PORT3(port, a, b, c) ((port) == PORT_A ? (a) : \
+                              (port) == PORT_B ? (b) : (c))
#define _MASKED_BIT_ENABLE(a) (((a) << 16) | (a))
  #define _MASKED_BIT_DISABLE(a) ((a) << 16)
@@ -1492,7 +1494,7 @@ enum punit_power_well {
  #define I915_ISP_INTERRUPT                            (1<<22)
  #define I915_LPE_PIPE_B_INTERRUPT                     (1<<21)
  #define I915_LPE_PIPE_A_INTERRUPT                     (1<<20)
-#define I915_MIPIB_INTERRUPT                           (1<<19)
+#define I915_MIPIC_INTERRUPT                           (1<<19)
  #define I915_MIPIA_INTERRUPT                          (1<<18)
  #define I915_PIPE_CONTROL_NOTIFY_INTERRUPT            (1<<18)
  #define I915_DISPLAY_PORT_INTERRUPT                   (1<<17)
@@ -6612,29 +6614,30 @@ enum punit_power_well {
  #define PIPE_CSC_POSTOFF_ME(pipe) _PIPE(pipe, _PIPE_A_CSC_POSTOFF_ME, 
_PIPE_B_CSC_POSTOFF_ME)
  #define PIPE_CSC_POSTOFF_LO(pipe) _PIPE(pipe, _PIPE_A_CSC_POSTOFF_LO, 
_PIPE_B_CSC_POSTOFF_LO)
-/* VLV MIPI registers */
+/* MIPI DSI registers */
+
+#define _MIPI_PORT(port, a, c) _PORT3(port, a, 0, c)   /* ports A and C only */
#define _MIPIA_PORT_CTRL (VLV_DISPLAY_BASE + 0x61190)
-#define _MIPIB_PORT_CTRL                       (VLV_DISPLAY_BASE + 0x61700)
-#define MIPI_PORT_CTRL(tc)             _TRANSCODER(tc, _MIPIA_PORT_CTRL, \
-                                               _MIPIB_PORT_CTRL)
-#define  DPI_ENABLE                                    (1 << 31) /* A + B */
+#define _MIPIC_PORT_CTRL                       (VLV_DISPLAY_BASE + 0x61700)
+#define MIPI_PORT_CTRL(port)   _MIPI_PORT(port, _MIPIA_PORT_CTRL, 
_MIPIC_PORT_CTRL)
+#define  DPI_ENABLE                                    (1 << 31) /* A + C */
  #define  MIPIA_MIPI4DPHY_DELAY_COUNT_SHIFT            27
  #define  MIPIA_MIPI4DPHY_DELAY_COUNT_MASK             (0xf << 27)
  #define  DUAL_LINK_MODE_MASK                          (1 << 26)
  #define  DUAL_LINK_MODE_FRONT_BACK                    (0 << 26)
  #define  DUAL_LINK_MODE_PIXEL_ALTERNATIVE             (1 << 26)
-#define  DITHERING_ENABLE                              (1 << 25) /* A + B */
+#define  DITHERING_ENABLE                              (1 << 25) /* A + C */
  #define  FLOPPED_HSTX                                 (1 << 23)
  #define  DE_INVERT                                    (1 << 19) /* XXX */
  #define  MIPIA_FLISDSI_DELAY_COUNT_SHIFT              18
  #define  MIPIA_FLISDSI_DELAY_COUNT_MASK                       (0xf << 18)
  #define  AFE_LATCHOUT                                 (1 << 17)
  #define  LP_OUTPUT_HOLD                                       (1 << 16)
-#define  MIPIB_FLISDSI_DELAY_COUNT_HIGH_SHIFT          15
-#define  MIPIB_FLISDSI_DELAY_COUNT_HIGH_MASK           (1 << 15)
-#define  MIPIB_MIPI4DPHY_DELAY_COUNT_SHIFT             11
-#define  MIPIB_MIPI4DPHY_DELAY_COUNT_MASK              (0xf << 11)
+#define  MIPIC_FLISDSI_DELAY_COUNT_HIGH_SHIFT          15
+#define  MIPIC_FLISDSI_DELAY_COUNT_HIGH_MASK           (1 << 15)
+#define  MIPIC_MIPI4DPHY_DELAY_COUNT_SHIFT             11
+#define  MIPIC_MIPI4DPHY_DELAY_COUNT_MASK              (0xf << 11)
  #define  CSB_SHIFT                                    9
  #define  CSB_MASK                                     (3 << 9)
  #define  CSB_20MHZ                                    (0 << 9)
@@ -6643,10 +6646,10 @@ enum punit_power_well {
  #define  BANDGAP_MASK                                 (1 << 8)
  #define  BANDGAP_PNW_CIRCUIT                          (0 << 8)
  #define  BANDGAP_LNC_CIRCUIT                          (1 << 8)
-#define  MIPIB_FLISDSI_DELAY_COUNT_LOW_SHIFT           5
-#define  MIPIB_FLISDSI_DELAY_COUNT_LOW_MASK            (7 << 5)
-#define  TEARING_EFFECT_DELAY                          (1 << 4) /* A + B */
-#define  TEARING_EFFECT_SHIFT                          2 /* A + B */
+#define  MIPIC_FLISDSI_DELAY_COUNT_LOW_SHIFT           5
+#define  MIPIC_FLISDSI_DELAY_COUNT_LOW_MASK            (7 << 5)
+#define  TEARING_EFFECT_DELAY                          (1 << 4) /* A + C */
+#define  TEARING_EFFECT_SHIFT                          2 /* A + C */
  #define  TEARING_EFFECT_MASK                          (3 << 2)
  #define  TEARING_EFFECT_OFF                           (0 << 2)
  #define  TEARING_EFFECT_DSI                           (1 << 2)
@@ -6658,9 +6661,9 @@ enum punit_power_well {
  #define  LANE_CONFIGURATION_DUAL_LINK_B                       (2 << 0)
#define _MIPIA_TEARING_CTRL (VLV_DISPLAY_BASE + 0x61194)
-#define _MIPIB_TEARING_CTRL                    (VLV_DISPLAY_BASE + 0x61704)
-#define MIPI_TEARING_CTRL(tc)                  _TRANSCODER(tc, \
-                               _MIPIA_TEARING_CTRL, _MIPIB_TEARING_CTRL)
+#define _MIPIC_TEARING_CTRL                    (VLV_DISPLAY_BASE + 0x61704)
+#define MIPI_TEARING_CTRL(port)                        _MIPI_PORT(port, \
+                               _MIPIA_TEARING_CTRL, _MIPIC_TEARING_CTRL)
  #define  TEARING_EFFECT_DELAY_SHIFT                   0
  #define  TEARING_EFFECT_DELAY_MASK                    (0xffff << 0)
@@ -6670,9 +6673,9 @@ enum punit_power_well {
  /* MIPI DSI Controller and D-PHY registers */
#define _MIPIA_DEVICE_READY (dev_priv->mipi_mmio_base + 0xb000)
-#define _MIPIB_DEVICE_READY            (dev_priv->mipi_mmio_base + 0xb800)
-#define MIPI_DEVICE_READY(tc)          _TRANSCODER(tc, _MIPIA_DEVICE_READY, \
-                                               _MIPIB_DEVICE_READY)
+#define _MIPIC_DEVICE_READY            (dev_priv->mipi_mmio_base + 0xb800)
+#define MIPI_DEVICE_READY(port)                _MIPI_PORT(port, 
_MIPIA_DEVICE_READY, \
+                                               _MIPIC_DEVICE_READY)
  #define  BUS_POSSESSION                                       (1 << 3) /* set 
to give bus to receiver */
  #define  ULPS_STATE_MASK                              (3 << 1)
  #define  ULPS_STATE_ENTER                             (2 << 1)
@@ -6681,13 +6684,13 @@ enum punit_power_well {
  #define  DEVICE_READY                                 (1 << 0)
#define _MIPIA_INTR_STAT (dev_priv->mipi_mmio_base + 0xb004)
-#define _MIPIB_INTR_STAT               (dev_priv->mipi_mmio_base + 0xb804)
-#define MIPI_INTR_STAT(tc)             _TRANSCODER(tc, _MIPIA_INTR_STAT, \
-                                       _MIPIB_INTR_STAT)
+#define _MIPIC_INTR_STAT               (dev_priv->mipi_mmio_base + 0xb804)
+#define MIPI_INTR_STAT(port)           _MIPI_PORT(port, _MIPIA_INTR_STAT, \
+                                       _MIPIC_INTR_STAT)
  #define _MIPIA_INTR_EN                        (dev_priv->mipi_mmio_base + 
0xb008)
-#define _MIPIB_INTR_EN                 (dev_priv->mipi_mmio_base + 0xb808)
-#define MIPI_INTR_EN(tc)               _TRANSCODER(tc, _MIPIA_INTR_EN, \
-                                       _MIPIB_INTR_EN)
+#define _MIPIC_INTR_EN                 (dev_priv->mipi_mmio_base + 0xb808)
+#define MIPI_INTR_EN(port)             _MIPI_PORT(port, _MIPIA_INTR_EN, \
+                                       _MIPIC_INTR_EN)
  #define  TEARING_EFFECT                                       (1 << 31)
  #define  SPL_PKT_SENT_INTERRUPT                               (1 << 30)
  #define  GEN_READ_DATA_AVAIL                          (1 << 29)
@@ -6722,9 +6725,9 @@ enum punit_power_well {
  #define  RXSOT_ERROR                                  (1 << 0)
#define _MIPIA_DSI_FUNC_PRG (dev_priv->mipi_mmio_base + 0xb00c)
-#define _MIPIB_DSI_FUNC_PRG            (dev_priv->mipi_mmio_base + 0xb80c)
-#define MIPI_DSI_FUNC_PRG(tc)          _TRANSCODER(tc, _MIPIA_DSI_FUNC_PRG, \
-                                               _MIPIB_DSI_FUNC_PRG)
+#define _MIPIC_DSI_FUNC_PRG            (dev_priv->mipi_mmio_base + 0xb80c)
+#define MIPI_DSI_FUNC_PRG(port)                _MIPI_PORT(port, 
_MIPIA_DSI_FUNC_PRG, \
+                                               _MIPIC_DSI_FUNC_PRG)
  #define  CMD_MODE_DATA_WIDTH_MASK                     (7 << 13)
  #define  CMD_MODE_NOT_SUPPORTED                               (0 << 13)
  #define  CMD_MODE_DATA_WIDTH_16_BIT                   (1 << 13)
@@ -6746,93 +6749,93 @@ enum punit_power_well {
  #define  DATA_LANES_PRG_REG_MASK                      (7 << 0)
#define _MIPIA_HS_TX_TIMEOUT (dev_priv->mipi_mmio_base + 0xb010)
-#define _MIPIB_HS_TX_TIMEOUT           (dev_priv->mipi_mmio_base + 0xb810)
-#define MIPI_HS_TX_TIMEOUT(tc) _TRANSCODER(tc, _MIPIA_HS_TX_TIMEOUT, \
-                                       _MIPIB_HS_TX_TIMEOUT)
+#define _MIPIC_HS_TX_TIMEOUT           (dev_priv->mipi_mmio_base + 0xb810)
+#define MIPI_HS_TX_TIMEOUT(port)       _MIPI_PORT(port, _MIPIA_HS_TX_TIMEOUT, \
+                                       _MIPIC_HS_TX_TIMEOUT)
  #define  HIGH_SPEED_TX_TIMEOUT_COUNTER_MASK           0xffffff
#define _MIPIA_LP_RX_TIMEOUT (dev_priv->mipi_mmio_base + 0xb014)
-#define _MIPIB_LP_RX_TIMEOUT           (dev_priv->mipi_mmio_base + 0xb814)
-#define MIPI_LP_RX_TIMEOUT(tc) _TRANSCODER(tc, _MIPIA_LP_RX_TIMEOUT, \
-                                       _MIPIB_LP_RX_TIMEOUT)
+#define _MIPIC_LP_RX_TIMEOUT           (dev_priv->mipi_mmio_base + 0xb814)
+#define MIPI_LP_RX_TIMEOUT(port)       _MIPI_PORT(port, _MIPIA_LP_RX_TIMEOUT, \
+                                       _MIPIC_LP_RX_TIMEOUT)
  #define  LOW_POWER_RX_TIMEOUT_COUNTER_MASK            0xffffff
#define _MIPIA_TURN_AROUND_TIMEOUT (dev_priv->mipi_mmio_base + 0xb018)
-#define _MIPIB_TURN_AROUND_TIMEOUT     (dev_priv->mipi_mmio_base + 0xb818)
-#define MIPI_TURN_AROUND_TIMEOUT(tc)   _TRANSCODER(tc, \
-                       _MIPIA_TURN_AROUND_TIMEOUT, _MIPIB_TURN_AROUND_TIMEOUT)
+#define _MIPIC_TURN_AROUND_TIMEOUT     (dev_priv->mipi_mmio_base + 0xb818)
+#define MIPI_TURN_AROUND_TIMEOUT(port) _MIPI_PORT(port, \
+                       _MIPIA_TURN_AROUND_TIMEOUT, _MIPIC_TURN_AROUND_TIMEOUT)
  #define  TURN_AROUND_TIMEOUT_MASK                     0x3f
#define _MIPIA_DEVICE_RESET_TIMER (dev_priv->mipi_mmio_base + 0xb01c)
-#define _MIPIB_DEVICE_RESET_TIMER      (dev_priv->mipi_mmio_base + 0xb81c)
-#define MIPI_DEVICE_RESET_TIMER(tc)    _TRANSCODER(tc, \
-                       _MIPIA_DEVICE_RESET_TIMER, _MIPIB_DEVICE_RESET_TIMER)
+#define _MIPIC_DEVICE_RESET_TIMER      (dev_priv->mipi_mmio_base + 0xb81c)
+#define MIPI_DEVICE_RESET_TIMER(port)  _MIPI_PORT(port, \
+                       _MIPIA_DEVICE_RESET_TIMER, _MIPIC_DEVICE_RESET_TIMER)
  #define  DEVICE_RESET_TIMER_MASK                      0xffff
#define _MIPIA_DPI_RESOLUTION (dev_priv->mipi_mmio_base + 0xb020)
-#define _MIPIB_DPI_RESOLUTION          (dev_priv->mipi_mmio_base + 0xb820)
-#define MIPI_DPI_RESOLUTION(tc)        _TRANSCODER(tc, _MIPIA_DPI_RESOLUTION, \
-                                       _MIPIB_DPI_RESOLUTION)
+#define _MIPIC_DPI_RESOLUTION          (dev_priv->mipi_mmio_base + 0xb820)
+#define MIPI_DPI_RESOLUTION(port)      _MIPI_PORT(port, _MIPIA_DPI_RESOLUTION, 
\
+                                       _MIPIC_DPI_RESOLUTION)
  #define  VERTICAL_ADDRESS_SHIFT                               16
  #define  VERTICAL_ADDRESS_MASK                                (0xffff << 16)
  #define  HORIZONTAL_ADDRESS_SHIFT                     0
  #define  HORIZONTAL_ADDRESS_MASK                      0xffff
#define _MIPIA_DBI_FIFO_THROTTLE (dev_priv->mipi_mmio_base + 0xb024)
-#define _MIPIB_DBI_FIFO_THROTTLE       (dev_priv->mipi_mmio_base + 0xb824)
-#define MIPI_DBI_FIFO_THROTTLE(tc)     _TRANSCODER(tc, \
-                       _MIPIA_DBI_FIFO_THROTTLE, _MIPIB_DBI_FIFO_THROTTLE)
+#define _MIPIC_DBI_FIFO_THROTTLE       (dev_priv->mipi_mmio_base + 0xb824)
+#define MIPI_DBI_FIFO_THROTTLE(port)   _MIPI_PORT(port, \
+                       _MIPIA_DBI_FIFO_THROTTLE, _MIPIC_DBI_FIFO_THROTTLE)
  #define  DBI_FIFO_EMPTY_HALF                          (0 << 0)
  #define  DBI_FIFO_EMPTY_QUARTER                               (1 << 0)
  #define  DBI_FIFO_EMPTY_7_LOCATIONS                   (2 << 0)
/* regs below are bits 15:0 */
  #define _MIPIA_HSYNC_PADDING_COUNT    (dev_priv->mipi_mmio_base + 0xb028)
-#define _MIPIB_HSYNC_PADDING_COUNT     (dev_priv->mipi_mmio_base + 0xb828)
-#define MIPI_HSYNC_PADDING_COUNT(tc)   _TRANSCODER(tc, \
-                       _MIPIA_HSYNC_PADDING_COUNT, _MIPIB_HSYNC_PADDING_COUNT)
+#define _MIPIC_HSYNC_PADDING_COUNT     (dev_priv->mipi_mmio_base + 0xb828)
+#define MIPI_HSYNC_PADDING_COUNT(port) _MIPI_PORT(port, \
+                       _MIPIA_HSYNC_PADDING_COUNT, _MIPIC_HSYNC_PADDING_COUNT)
#define _MIPIA_HBP_COUNT (dev_priv->mipi_mmio_base + 0xb02c)
-#define _MIPIB_HBP_COUNT               (dev_priv->mipi_mmio_base + 0xb82c)
-#define MIPI_HBP_COUNT(tc)             _TRANSCODER(tc, _MIPIA_HBP_COUNT, \
-                                       _MIPIB_HBP_COUNT)
+#define _MIPIC_HBP_COUNT               (dev_priv->mipi_mmio_base + 0xb82c)
+#define MIPI_HBP_COUNT(port)           _MIPI_PORT(port, _MIPIA_HBP_COUNT, \
+                                       _MIPIC_HBP_COUNT)
#define _MIPIA_HFP_COUNT (dev_priv->mipi_mmio_base + 0xb030)
-#define _MIPIB_HFP_COUNT               (dev_priv->mipi_mmio_base + 0xb830)
-#define MIPI_HFP_COUNT(tc)             _TRANSCODER(tc, _MIPIA_HFP_COUNT, \
-                                       _MIPIB_HFP_COUNT)
+#define _MIPIC_HFP_COUNT               (dev_priv->mipi_mmio_base + 0xb830)
+#define MIPI_HFP_COUNT(port)           _MIPI_PORT(port, _MIPIA_HFP_COUNT, \
+                                       _MIPIC_HFP_COUNT)
#define _MIPIA_HACTIVE_AREA_COUNT (dev_priv->mipi_mmio_base + 0xb034)
-#define _MIPIB_HACTIVE_AREA_COUNT      (dev_priv->mipi_mmio_base + 0xb834)
-#define MIPI_HACTIVE_AREA_COUNT(tc)    _TRANSCODER(tc, \
-                       _MIPIA_HACTIVE_AREA_COUNT, _MIPIB_HACTIVE_AREA_COUNT)
+#define _MIPIC_HACTIVE_AREA_COUNT      (dev_priv->mipi_mmio_base + 0xb834)
+#define MIPI_HACTIVE_AREA_COUNT(port)  _MIPI_PORT(port, \
+                       _MIPIA_HACTIVE_AREA_COUNT, _MIPIC_HACTIVE_AREA_COUNT)
#define _MIPIA_VSYNC_PADDING_COUNT (dev_priv->mipi_mmio_base + 0xb038)
-#define _MIPIB_VSYNC_PADDING_COUNT     (dev_priv->mipi_mmio_base + 0xb838)
-#define MIPI_VSYNC_PADDING_COUNT(tc)   _TRANSCODER(tc, \
-                       _MIPIA_VSYNC_PADDING_COUNT, _MIPIB_VSYNC_PADDING_COUNT)
+#define _MIPIC_VSYNC_PADDING_COUNT     (dev_priv->mipi_mmio_base + 0xb838)
+#define MIPI_VSYNC_PADDING_COUNT(port) _MIPI_PORT(port, \
+                       _MIPIA_VSYNC_PADDING_COUNT, _MIPIC_VSYNC_PADDING_COUNT)
#define _MIPIA_VBP_COUNT (dev_priv->mipi_mmio_base + 0xb03c)
-#define _MIPIB_VBP_COUNT               (dev_priv->mipi_mmio_base + 0xb83c)
-#define MIPI_VBP_COUNT(tc)             _TRANSCODER(tc, _MIPIA_VBP_COUNT, \
-                                       _MIPIB_VBP_COUNT)
+#define _MIPIC_VBP_COUNT               (dev_priv->mipi_mmio_base + 0xb83c)
+#define MIPI_VBP_COUNT(port)           _MIPI_PORT(port, _MIPIA_VBP_COUNT, \
+                                       _MIPIC_VBP_COUNT)
#define _MIPIA_VFP_COUNT (dev_priv->mipi_mmio_base + 0xb040)
-#define _MIPIB_VFP_COUNT               (dev_priv->mipi_mmio_base + 0xb840)
-#define MIPI_VFP_COUNT(tc)             _TRANSCODER(tc, _MIPIA_VFP_COUNT, \
-                                       _MIPIB_VFP_COUNT)
+#define _MIPIC_VFP_COUNT               (dev_priv->mipi_mmio_base + 0xb840)
+#define MIPI_VFP_COUNT(port)           _MIPI_PORT(port, _MIPIA_VFP_COUNT, \
+                                       _MIPIC_VFP_COUNT)
#define _MIPIA_HIGH_LOW_SWITCH_COUNT (dev_priv->mipi_mmio_base + 0xb044)
-#define _MIPIB_HIGH_LOW_SWITCH_COUNT   (dev_priv->mipi_mmio_base + 0xb844)
-#define MIPI_HIGH_LOW_SWITCH_COUNT(tc) _TRANSCODER(tc, \
-               _MIPIA_HIGH_LOW_SWITCH_COUNT, _MIPIB_HIGH_LOW_SWITCH_COUNT)
+#define _MIPIC_HIGH_LOW_SWITCH_COUNT   (dev_priv->mipi_mmio_base + 0xb844)
+#define MIPI_HIGH_LOW_SWITCH_COUNT(port)       _MIPI_PORT(port,        \
+               _MIPIA_HIGH_LOW_SWITCH_COUNT, _MIPIC_HIGH_LOW_SWITCH_COUNT)
/* regs above are bits 15:0 */ #define _MIPIA_DPI_CONTROL (dev_priv->mipi_mmio_base + 0xb048)
-#define _MIPIB_DPI_CONTROL             (dev_priv->mipi_mmio_base + 0xb848)
-#define MIPI_DPI_CONTROL(tc)           _TRANSCODER(tc, _MIPIA_DPI_CONTROL, \
-                                       _MIPIB_DPI_CONTROL)
+#define _MIPIC_DPI_CONTROL             (dev_priv->mipi_mmio_base + 0xb848)
+#define MIPI_DPI_CONTROL(port)         _MIPI_PORT(port, _MIPIA_DPI_CONTROL, \
+                                       _MIPIC_DPI_CONTROL)
  #define  DPI_LP_MODE                                  (1 << 6)
  #define  BACKLIGHT_OFF                                        (1 << 5)
  #define  BACKLIGHT_ON                                 (1 << 4)
@@ -6842,30 +6845,30 @@ enum punit_power_well {
  #define  SHUTDOWN                                     (1 << 0)
#define _MIPIA_DPI_DATA (dev_priv->mipi_mmio_base + 0xb04c)
-#define _MIPIB_DPI_DATA                        (dev_priv->mipi_mmio_base + 
0xb84c)
-#define MIPI_DPI_DATA(tc)              _TRANSCODER(tc, _MIPIA_DPI_DATA, \
-                                       _MIPIB_DPI_DATA)
+#define _MIPIC_DPI_DATA                        (dev_priv->mipi_mmio_base + 
0xb84c)
+#define MIPI_DPI_DATA(port)            _MIPI_PORT(port, _MIPIA_DPI_DATA, \
+                                       _MIPIC_DPI_DATA)
  #define  COMMAND_BYTE_SHIFT                           0
  #define  COMMAND_BYTE_MASK                            (0x3f << 0)
#define _MIPIA_INIT_COUNT (dev_priv->mipi_mmio_base + 0xb050)
-#define _MIPIB_INIT_COUNT              (dev_priv->mipi_mmio_base + 0xb850)
-#define MIPI_INIT_COUNT(tc)            _TRANSCODER(tc, _MIPIA_INIT_COUNT, \
-                                       _MIPIB_INIT_COUNT)
+#define _MIPIC_INIT_COUNT              (dev_priv->mipi_mmio_base + 0xb850)
+#define MIPI_INIT_COUNT(port)          _MIPI_PORT(port, _MIPIA_INIT_COUNT, \
+                                       _MIPIC_INIT_COUNT)
  #define  MASTER_INIT_TIMER_SHIFT                      0
  #define  MASTER_INIT_TIMER_MASK                               (0xffff << 0)
#define _MIPIA_MAX_RETURN_PKT_SIZE (dev_priv->mipi_mmio_base + 0xb054)
-#define _MIPIB_MAX_RETURN_PKT_SIZE     (dev_priv->mipi_mmio_base + 0xb854)
-#define MIPI_MAX_RETURN_PKT_SIZE(tc)   _TRANSCODER(tc, \
-                       _MIPIA_MAX_RETURN_PKT_SIZE, _MIPIB_MAX_RETURN_PKT_SIZE)
+#define _MIPIC_MAX_RETURN_PKT_SIZE     (dev_priv->mipi_mmio_base + 0xb854)
+#define MIPI_MAX_RETURN_PKT_SIZE(port) _MIPI_PORT(port, \
+                       _MIPIA_MAX_RETURN_PKT_SIZE, _MIPIC_MAX_RETURN_PKT_SIZE)
  #define  MAX_RETURN_PKT_SIZE_SHIFT                    0
  #define  MAX_RETURN_PKT_SIZE_MASK                     (0x3ff << 0)
#define _MIPIA_VIDEO_MODE_FORMAT (dev_priv->mipi_mmio_base + 0xb058)
-#define _MIPIB_VIDEO_MODE_FORMAT       (dev_priv->mipi_mmio_base + 0xb858)
-#define MIPI_VIDEO_MODE_FORMAT(tc)     _TRANSCODER(tc, \
-                       _MIPIA_VIDEO_MODE_FORMAT, _MIPIB_VIDEO_MODE_FORMAT)
+#define _MIPIC_VIDEO_MODE_FORMAT       (dev_priv->mipi_mmio_base + 0xb858)
+#define MIPI_VIDEO_MODE_FORMAT(port)   _MIPI_PORT(port, \
+                       _MIPIA_VIDEO_MODE_FORMAT, _MIPIC_VIDEO_MODE_FORMAT)
  #define  RANDOM_DPI_DISPLAY_RESOLUTION                        (1 << 4)
  #define  DISABLE_VIDEO_BTA                            (1 << 3)
  #define  IP_TG_CONFIG                                 (1 << 2)
@@ -6874,9 +6877,9 @@ enum punit_power_well {
  #define  VIDEO_MODE_BURST                             (3 << 0)
#define _MIPIA_EOT_DISABLE (dev_priv->mipi_mmio_base + 0xb05c)
-#define _MIPIB_EOT_DISABLE             (dev_priv->mipi_mmio_base + 0xb85c)
-#define MIPI_EOT_DISABLE(tc)           _TRANSCODER(tc, _MIPIA_EOT_DISABLE, \
-                                       _MIPIB_EOT_DISABLE)
+#define _MIPIC_EOT_DISABLE             (dev_priv->mipi_mmio_base + 0xb85c)
+#define MIPI_EOT_DISABLE(port)         _MIPI_PORT(port, _MIPIA_EOT_DISABLE, \
+                                       _MIPIC_EOT_DISABLE)
  #define  LP_RX_TIMEOUT_ERROR_RECOVERY_DISABLE         (1 << 7)
  #define  HS_RX_TIMEOUT_ERROR_RECOVERY_DISABLE         (1 << 6)
  #define  LOW_CONTENTION_RECOVERY_DISABLE              (1 << 5)
@@ -6887,32 +6890,32 @@ enum punit_power_well {
  #define  EOT_DISABLE                                  (1 << 0)
#define _MIPIA_LP_BYTECLK (dev_priv->mipi_mmio_base + 0xb060)
-#define _MIPIB_LP_BYTECLK              (dev_priv->mipi_mmio_base + 0xb860)
-#define MIPI_LP_BYTECLK(tc)            _TRANSCODER(tc, _MIPIA_LP_BYTECLK, \
-                                       _MIPIB_LP_BYTECLK)
+#define _MIPIC_LP_BYTECLK              (dev_priv->mipi_mmio_base + 0xb860)
+#define MIPI_LP_BYTECLK(port)          _MIPI_PORT(port, _MIPIA_LP_BYTECLK, \
+                                       _MIPIC_LP_BYTECLK)
  #define  LP_BYTECLK_SHIFT                             0
  #define  LP_BYTECLK_MASK                              (0xffff << 0)
/* bits 31:0 */
  #define _MIPIA_LP_GEN_DATA            (dev_priv->mipi_mmio_base + 0xb064)
-#define _MIPIB_LP_GEN_DATA             (dev_priv->mipi_mmio_base + 0xb864)
-#define MIPI_LP_GEN_DATA(tc)           _TRANSCODER(tc, _MIPIA_LP_GEN_DATA, \
-                                       _MIPIB_LP_GEN_DATA)
+#define _MIPIC_LP_GEN_DATA             (dev_priv->mipi_mmio_base + 0xb864)
+#define MIPI_LP_GEN_DATA(port)         _MIPI_PORT(port, _MIPIA_LP_GEN_DATA, \
+                                       _MIPIC_LP_GEN_DATA)
/* bits 31:0 */
  #define _MIPIA_HS_GEN_DATA            (dev_priv->mipi_mmio_base + 0xb068)
-#define _MIPIB_HS_GEN_DATA             (dev_priv->mipi_mmio_base + 0xb868)
-#define MIPI_HS_GEN_DATA(tc)           _TRANSCODER(tc, _MIPIA_HS_GEN_DATA, \
-                                       _MIPIB_HS_GEN_DATA)
+#define _MIPIC_HS_GEN_DATA             (dev_priv->mipi_mmio_base + 0xb868)
+#define MIPI_HS_GEN_DATA(port)         _MIPI_PORT(port, _MIPIA_HS_GEN_DATA, \
+                                       _MIPIC_HS_GEN_DATA)
#define _MIPIA_LP_GEN_CTRL (dev_priv->mipi_mmio_base + 0xb06c)
-#define _MIPIB_LP_GEN_CTRL             (dev_priv->mipi_mmio_base + 0xb86c)
-#define MIPI_LP_GEN_CTRL(tc)           _TRANSCODER(tc, _MIPIA_LP_GEN_CTRL, \
-                                       _MIPIB_LP_GEN_CTRL)
+#define _MIPIC_LP_GEN_CTRL             (dev_priv->mipi_mmio_base + 0xb86c)
+#define MIPI_LP_GEN_CTRL(port)         _MIPI_PORT(port, _MIPIA_LP_GEN_CTRL, \
+                                       _MIPIC_LP_GEN_CTRL)
  #define _MIPIA_HS_GEN_CTRL            (dev_priv->mipi_mmio_base + 0xb070)
-#define _MIPIB_HS_GEN_CTRL             (dev_priv->mipi_mmio_base + 0xb870)
-#define MIPI_HS_GEN_CTRL(tc)           _TRANSCODER(tc, _MIPIA_HS_GEN_CTRL, \
-                                       _MIPIB_HS_GEN_CTRL)
+#define _MIPIC_HS_GEN_CTRL             (dev_priv->mipi_mmio_base + 0xb870)
+#define MIPI_HS_GEN_CTRL(port)         _MIPI_PORT(port, _MIPIA_HS_GEN_CTRL, \
+                                       _MIPIC_HS_GEN_CTRL)
  #define  LONG_PACKET_WORD_COUNT_SHIFT                 8
  #define  LONG_PACKET_WORD_COUNT_MASK                  (0xffff << 8)
  #define  SHORT_PACKET_PARAM_SHIFT                     8
@@ -6924,9 +6927,9 @@ enum punit_power_well {
  /* data type values, see include/video/mipi_display.h */
#define _MIPIA_GEN_FIFO_STAT (dev_priv->mipi_mmio_base + 0xb074)
-#define _MIPIB_GEN_FIFO_STAT           (dev_priv->mipi_mmio_base + 0xb874)
-#define MIPI_GEN_FIFO_STAT(tc) _TRANSCODER(tc, _MIPIA_GEN_FIFO_STAT, \
-                                       _MIPIB_GEN_FIFO_STAT)
+#define _MIPIC_GEN_FIFO_STAT           (dev_priv->mipi_mmio_base + 0xb874)
+#define MIPI_GEN_FIFO_STAT(port)       _MIPI_PORT(port, _MIPIA_GEN_FIFO_STAT, \
+                                       _MIPIC_GEN_FIFO_STAT)
  #define  DPI_FIFO_EMPTY                                       (1 << 28)
  #define  DBI_FIFO_EMPTY                                       (1 << 27)
  #define  LP_CTRL_FIFO_EMPTY                           (1 << 26)
@@ -6943,17 +6946,17 @@ enum punit_power_well {
  #define  HS_DATA_FIFO_FULL                            (1 << 0)
#define _MIPIA_HS_LS_DBI_ENABLE (dev_priv->mipi_mmio_base + 0xb078)
-#define _MIPIB_HS_LS_DBI_ENABLE                (dev_priv->mipi_mmio_base + 
0xb878)
-#define MIPI_HS_LP_DBI_ENABLE(tc)      _TRANSCODER(tc, \
-                       _MIPIA_HS_LS_DBI_ENABLE, _MIPIB_HS_LS_DBI_ENABLE)
+#define _MIPIC_HS_LS_DBI_ENABLE                (dev_priv->mipi_mmio_base + 
0xb878)
+#define MIPI_HS_LP_DBI_ENABLE(port)    _MIPI_PORT(port, \
+                       _MIPIA_HS_LS_DBI_ENABLE, _MIPIC_HS_LS_DBI_ENABLE)
  #define  DBI_HS_LP_MODE_MASK                          (1 << 0)
  #define  DBI_LP_MODE                                  (1 << 0)
  #define  DBI_HS_MODE                                  (0 << 0)
#define _MIPIA_DPHY_PARAM (dev_priv->mipi_mmio_base + 0xb080)
-#define _MIPIB_DPHY_PARAM              (dev_priv->mipi_mmio_base + 0xb880)
-#define MIPI_DPHY_PARAM(tc)            _TRANSCODER(tc, _MIPIA_DPHY_PARAM, \
-                                       _MIPIB_DPHY_PARAM)
+#define _MIPIC_DPHY_PARAM              (dev_priv->mipi_mmio_base + 0xb880)
+#define MIPI_DPHY_PARAM(port)          _MIPI_PORT(port, _MIPIA_DPHY_PARAM, \
+                                       _MIPIC_DPHY_PARAM)
  #define  EXIT_ZERO_COUNT_SHIFT                                24
  #define  EXIT_ZERO_COUNT_MASK                         (0x3f << 24)
  #define  TRAIL_COUNT_SHIFT                            16
@@ -6965,36 +6968,36 @@ enum punit_power_well {
/* bits 31:0 */
  #define _MIPIA_DBI_BW_CTRL            (dev_priv->mipi_mmio_base + 0xb084)
-#define _MIPIB_DBI_BW_CTRL             (dev_priv->mipi_mmio_base + 0xb884)
-#define MIPI_DBI_BW_CTRL(tc)           _TRANSCODER(tc, _MIPIA_DBI_BW_CTRL, \
-                                       _MIPIB_DBI_BW_CTRL)
+#define _MIPIC_DBI_BW_CTRL             (dev_priv->mipi_mmio_base + 0xb884)
+#define MIPI_DBI_BW_CTRL(port)         _MIPI_PORT(port, _MIPIA_DBI_BW_CTRL, \
+                                       _MIPIC_DBI_BW_CTRL)
#define _MIPIA_CLK_LANE_SWITCH_TIME_CNT (dev_priv->mipi_mmio_base \
                                                        + 0xb088)
-#define _MIPIB_CLK_LANE_SWITCH_TIME_CNT                
(dev_priv->mipi_mmio_base \
+#define _MIPIC_CLK_LANE_SWITCH_TIME_CNT                
(dev_priv->mipi_mmio_base \
                                                        + 0xb888)
-#define MIPI_CLK_LANE_SWITCH_TIME_CNT(tc)      _TRANSCODER(tc, \
-       _MIPIA_CLK_LANE_SWITCH_TIME_CNT, _MIPIB_CLK_LANE_SWITCH_TIME_CNT)
+#define MIPI_CLK_LANE_SWITCH_TIME_CNT(port)    _MIPI_PORT(port, \
+       _MIPIA_CLK_LANE_SWITCH_TIME_CNT, _MIPIC_CLK_LANE_SWITCH_TIME_CNT)
  #define  LP_HS_SSW_CNT_SHIFT                          16
  #define  LP_HS_SSW_CNT_MASK                           (0xffff << 16)
  #define  HS_LP_PWR_SW_CNT_SHIFT                               0
  #define  HS_LP_PWR_SW_CNT_MASK                                (0xffff << 0)
#define _MIPIA_STOP_STATE_STALL (dev_priv->mipi_mmio_base + 0xb08c)
-#define _MIPIB_STOP_STATE_STALL                (dev_priv->mipi_mmio_base + 
0xb88c)
-#define MIPI_STOP_STATE_STALL(tc)      _TRANSCODER(tc, \
-                       _MIPIA_STOP_STATE_STALL, _MIPIB_STOP_STATE_STALL)
+#define _MIPIC_STOP_STATE_STALL                (dev_priv->mipi_mmio_base + 
0xb88c)
+#define MIPI_STOP_STATE_STALL(port)    _MIPI_PORT(port, \
+                       _MIPIA_STOP_STATE_STALL, _MIPIC_STOP_STATE_STALL)
  #define  STOP_STATE_STALL_COUNTER_SHIFT                       0
  #define  STOP_STATE_STALL_COUNTER_MASK                        (0xff << 0)
#define _MIPIA_INTR_STAT_REG_1 (dev_priv->mipi_mmio_base + 0xb090)
-#define _MIPIB_INTR_STAT_REG_1         (dev_priv->mipi_mmio_base + 0xb890)
-#define MIPI_INTR_STAT_REG_1(tc)       _TRANSCODER(tc, \
-                               _MIPIA_INTR_STAT_REG_1, _MIPIB_INTR_STAT_REG_1)
+#define _MIPIC_INTR_STAT_REG_1         (dev_priv->mipi_mmio_base + 0xb890)
+#define MIPI_INTR_STAT_REG_1(port)     _MIPI_PORT(port, \
+                               _MIPIA_INTR_STAT_REG_1, _MIPIC_INTR_STAT_REG_1)
  #define _MIPIA_INTR_EN_REG_1          (dev_priv->mipi_mmio_base + 0xb094)
-#define _MIPIB_INTR_EN_REG_1           (dev_priv->mipi_mmio_base + 0xb894)
-#define MIPI_INTR_EN_REG_1(tc) _TRANSCODER(tc, _MIPIA_INTR_EN_REG_1, \
-                                       _MIPIB_INTR_EN_REG_1)
+#define _MIPIC_INTR_EN_REG_1           (dev_priv->mipi_mmio_base + 0xb894)
+#define MIPI_INTR_EN_REG_1(port)       _MIPI_PORT(port, _MIPIA_INTR_EN_REG_1, \
+                                       _MIPIC_INTR_EN_REG_1)
  #define  RX_CONTENTION_DETECTED                               (1 << 0)
/* XXX: only pipe A ?!? */
@@ -7013,9 +7016,9 @@ enum punit_power_well {
  /* MIPI adapter registers */
#define _MIPIA_CTRL (dev_priv->mipi_mmio_base + 0xb104)
-#define _MIPIB_CTRL                    (dev_priv->mipi_mmio_base + 0xb904)
-#define MIPI_CTRL(tc)                  _TRANSCODER(tc, _MIPIA_CTRL, \
-                                       _MIPIB_CTRL)
+#define _MIPIC_CTRL                    (dev_priv->mipi_mmio_base + 0xb904)
+#define MIPI_CTRL(port)                        _MIPI_PORT(port, _MIPIA_CTRL, \
+                                       _MIPIC_CTRL)
  #define  ESCAPE_CLOCK_DIVIDER_SHIFT                   5 /* A only */
  #define  ESCAPE_CLOCK_DIVIDER_MASK                    (3 << 5)
  #define  ESCAPE_CLOCK_DIVIDER_1                               (0 << 5)
@@ -7028,24 +7031,24 @@ enum punit_power_well {
  #define  RGB_FLIP_TO_BGR                              (1 << 2)
#define _MIPIA_DATA_ADDRESS (dev_priv->mipi_mmio_base + 0xb108)
-#define _MIPIB_DATA_ADDRESS            (dev_priv->mipi_mmio_base + 0xb908)
-#define MIPI_DATA_ADDRESS(tc)          _TRANSCODER(tc, _MIPIA_DATA_ADDRESS, \
-                                       _MIPIB_DATA_ADDRESS)
+#define _MIPIC_DATA_ADDRESS            (dev_priv->mipi_mmio_base + 0xb908)
+#define MIPI_DATA_ADDRESS(port)                _MIPI_PORT(port, 
_MIPIA_DATA_ADDRESS, \
+                                       _MIPIC_DATA_ADDRESS)
  #define  DATA_MEM_ADDRESS_SHIFT                               5
  #define  DATA_MEM_ADDRESS_MASK                                (0x7ffffff << 5)
  #define  DATA_VALID                                   (1 << 0)
#define _MIPIA_DATA_LENGTH (dev_priv->mipi_mmio_base + 0xb10c)
-#define _MIPIB_DATA_LENGTH             (dev_priv->mipi_mmio_base + 0xb90c)
-#define MIPI_DATA_LENGTH(tc)           _TRANSCODER(tc, _MIPIA_DATA_LENGTH, \
-                                       _MIPIB_DATA_LENGTH)
+#define _MIPIC_DATA_LENGTH             (dev_priv->mipi_mmio_base + 0xb90c)
+#define MIPI_DATA_LENGTH(port)         _MIPI_PORT(port, _MIPIA_DATA_LENGTH, \
+                                       _MIPIC_DATA_LENGTH)
  #define  DATA_LENGTH_SHIFT                            0
  #define  DATA_LENGTH_MASK                             (0xfffff << 0)
#define _MIPIA_COMMAND_ADDRESS (dev_priv->mipi_mmio_base + 0xb110)
-#define _MIPIB_COMMAND_ADDRESS         (dev_priv->mipi_mmio_base + 0xb910)
-#define MIPI_COMMAND_ADDRESS(tc)       _TRANSCODER(tc, \
-                               _MIPIA_COMMAND_ADDRESS, _MIPIB_COMMAND_ADDRESS)
+#define _MIPIC_COMMAND_ADDRESS         (dev_priv->mipi_mmio_base + 0xb910)
+#define MIPI_COMMAND_ADDRESS(port)     _MIPI_PORT(port, \
+                               _MIPIA_COMMAND_ADDRESS, _MIPIC_COMMAND_ADDRESS)
  #define  COMMAND_MEM_ADDRESS_SHIFT                    5
  #define  COMMAND_MEM_ADDRESS_MASK                     (0x7ffffff << 5)
  #define  AUTO_PWG_ENABLE                              (1 << 2)
@@ -7053,22 +7056,22 @@ enum punit_power_well {
  #define  COMMAND_VALID                                        (1 << 0)
#define _MIPIA_COMMAND_LENGTH (dev_priv->mipi_mmio_base + 0xb114)
-#define _MIPIB_COMMAND_LENGTH          (dev_priv->mipi_mmio_base + 0xb914)
-#define MIPI_COMMAND_LENGTH(tc)        _TRANSCODER(tc, _MIPIA_COMMAND_LENGTH, \
-                                       _MIPIB_COMMAND_LENGTH)
+#define _MIPIC_COMMAND_LENGTH          (dev_priv->mipi_mmio_base + 0xb914)
+#define MIPI_COMMAND_LENGTH(port)      _MIPI_PORT(port, _MIPIA_COMMAND_LENGTH, 
\
+                                       _MIPIC_COMMAND_LENGTH)
  #define  COMMAND_LENGTH_SHIFT(n)                      (8 * (n)) /* n: 0...3 */
  #define  COMMAND_LENGTH_MASK(n)                               (0xff << (8 * 
(n)))
#define _MIPIA_READ_DATA_RETURN0 (dev_priv->mipi_mmio_base + 0xb118)
-#define _MIPIB_READ_DATA_RETURN0       (dev_priv->mipi_mmio_base + 0xb918)
-#define MIPI_READ_DATA_RETURN(tc, n) \
-       (_TRANSCODER(tc, _MIPIA_READ_DATA_RETURN0, _MIPIB_READ_DATA_RETURN0) \
+#define _MIPIC_READ_DATA_RETURN0       (dev_priv->mipi_mmio_base + 0xb918)
+#define MIPI_READ_DATA_RETURN(port, n) \
+       (_MIPI_PORT(port, _MIPIA_READ_DATA_RETURN0, _MIPIC_READ_DATA_RETURN0) \
                                        + 4 * (n)) /* n: 0...7 */
#define _MIPIA_READ_DATA_VALID (dev_priv->mipi_mmio_base + 0xb138)
-#define _MIPIB_READ_DATA_VALID         (dev_priv->mipi_mmio_base + 0xb938)
-#define MIPI_READ_DATA_VALID(tc)       _TRANSCODER(tc, \
-                               _MIPIA_READ_DATA_VALID, _MIPIB_READ_DATA_VALID)
+#define _MIPIC_READ_DATA_VALID         (dev_priv->mipi_mmio_base + 0xb938)
+#define MIPI_READ_DATA_VALID(port)     _MIPI_PORT(port, \
+                               _MIPIA_READ_DATA_VALID, _MIPIC_READ_DATA_VALID)
  #define  READ_DATA_VALID(n)                           (1 << (n))
/* For UMS only (deprecated): */
diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c
index 0b184079de14..35842a6687d8 100644
--- a/drivers/gpu/drm/i915/intel_dsi.c
+++ b/drivers/gpu/drm/i915/intel_dsi.c
@@ -106,7 +106,7 @@ static void intel_dsi_device_ready(struct intel_encoder 
*encoder)
  {
        struct drm_i915_private *dev_priv = encoder->base.dev->dev_private;
        struct intel_crtc *intel_crtc = to_intel_crtc(encoder->base.crtc);
-       int pipe = intel_crtc->pipe;
+       enum port port = intel_dsi_pipe_to_port(intel_crtc->pipe);
        u32 val;
DRM_DEBUG_KMS("\n");
@@ -120,17 +120,17 @@ static void intel_dsi_device_ready(struct intel_encoder 
*encoder)
        /* bandgap reset is needed after everytime we do power gate */
        band_gap_reset(dev_priv);
- I915_WRITE(MIPI_DEVICE_READY(pipe), ULPS_STATE_ENTER);
+       I915_WRITE(MIPI_DEVICE_READY(port), ULPS_STATE_ENTER);
        usleep_range(2500, 3000);
- val = I915_READ(MIPI_PORT_CTRL(pipe));
-       I915_WRITE(MIPI_PORT_CTRL(pipe), val | LP_OUTPUT_HOLD);
+       val = I915_READ(MIPI_PORT_CTRL(port));
+       I915_WRITE(MIPI_PORT_CTRL(port), val | LP_OUTPUT_HOLD);
        usleep_range(1000, 1500);
- I915_WRITE(MIPI_DEVICE_READY(pipe), ULPS_STATE_EXIT);
+       I915_WRITE(MIPI_DEVICE_READY(port), ULPS_STATE_EXIT);
        usleep_range(2500, 3000);
- I915_WRITE(MIPI_DEVICE_READY(pipe), DEVICE_READY);
+       I915_WRITE(MIPI_DEVICE_READY(port), DEVICE_READY);
        usleep_range(2500, 3000);
  }
@@ -140,13 +140,13 @@ static void intel_dsi_enable(struct intel_encoder *encoder)
        struct drm_i915_private *dev_priv = dev->dev_private;
        struct intel_crtc *intel_crtc = to_intel_crtc(encoder->base.crtc);
        struct intel_dsi *intel_dsi = enc_to_intel_dsi(&encoder->base);
-       int pipe = intel_crtc->pipe;
+       enum port port = intel_dsi_pipe_to_port(intel_crtc->pipe);
        u32 temp;
DRM_DEBUG_KMS("\n"); if (is_cmd_mode(intel_dsi))
-               I915_WRITE(MIPI_MAX_RETURN_PKT_SIZE(pipe), 8 * 4);
+               I915_WRITE(MIPI_MAX_RETURN_PKT_SIZE(port), 8 * 4);
        else {
                msleep(20); /* XXX */
                dpi_send_cmd(intel_dsi, TURN_ON, DPI_LP_MODE_EN);
@@ -158,10 +158,10 @@ static void intel_dsi_enable(struct intel_encoder 
*encoder)
                wait_for_dsi_fifo_empty(intel_dsi);
/* assert ip_tg_enable signal */
-               temp = I915_READ(MIPI_PORT_CTRL(pipe)) & 
~LANE_CONFIGURATION_MASK;
+               temp = I915_READ(MIPI_PORT_CTRL(port)) & 
~LANE_CONFIGURATION_MASK;
                temp = temp | intel_dsi->port_bits;
-               I915_WRITE(MIPI_PORT_CTRL(pipe), temp | DPI_ENABLE);
-               POSTING_READ(MIPI_PORT_CTRL(pipe));
+               I915_WRITE(MIPI_PORT_CTRL(port), temp | DPI_ENABLE);
+               POSTING_READ(MIPI_PORT_CTRL(port));
        }
  }
@@ -237,7 +237,7 @@ static void intel_dsi_disable(struct intel_encoder *encoder)
        struct drm_i915_private *dev_priv = dev->dev_private;
        struct intel_crtc *intel_crtc = to_intel_crtc(encoder->base.crtc);
        struct intel_dsi *intel_dsi = enc_to_intel_dsi(&encoder->base);
-       int pipe = intel_crtc->pipe;
+       enum port port = intel_dsi_pipe_to_port(intel_crtc->pipe);
        u32 temp;
DRM_DEBUG_KMS("\n");
@@ -246,29 +246,29 @@ static void intel_dsi_disable(struct intel_encoder 
*encoder)
                wait_for_dsi_fifo_empty(intel_dsi);
/* de-assert ip_tg_enable signal */
-               temp = I915_READ(MIPI_PORT_CTRL(pipe));
-               I915_WRITE(MIPI_PORT_CTRL(pipe), temp & ~DPI_ENABLE);
-               POSTING_READ(MIPI_PORT_CTRL(pipe));
+               temp = I915_READ(MIPI_PORT_CTRL(port));
+               I915_WRITE(MIPI_PORT_CTRL(port), temp & ~DPI_ENABLE);
+               POSTING_READ(MIPI_PORT_CTRL(port));
msleep(2);
        }
/* Panel commands can be sent when clock is in LP11 */
-       I915_WRITE(MIPI_DEVICE_READY(pipe), 0x0);
+       I915_WRITE(MIPI_DEVICE_READY(port), 0x0);
- temp = I915_READ(MIPI_CTRL(pipe));
+       temp = I915_READ(MIPI_CTRL(port));
        temp &= ~ESCAPE_CLOCK_DIVIDER_MASK;
-       I915_WRITE(MIPI_CTRL(pipe), temp |
+       I915_WRITE(MIPI_CTRL(port), temp |
                   intel_dsi->escape_clk_div <<
                   ESCAPE_CLOCK_DIVIDER_SHIFT);
- I915_WRITE(MIPI_EOT_DISABLE(pipe), CLOCKSTOP);
+       I915_WRITE(MIPI_EOT_DISABLE(port), CLOCKSTOP);
- temp = I915_READ(MIPI_DSI_FUNC_PRG(pipe));
+       temp = I915_READ(MIPI_DSI_FUNC_PRG(port));
        temp &= ~VID_MODE_FORMAT_MASK;
-       I915_WRITE(MIPI_DSI_FUNC_PRG(pipe), temp);
+       I915_WRITE(MIPI_DSI_FUNC_PRG(port), temp);
- I915_WRITE(MIPI_DEVICE_READY(pipe), 0x1);
+       I915_WRITE(MIPI_DEVICE_READY(port), 0x1);
/* if disable packets are sent before sending shutdown packet then in
         * some next enable sequence send turn on packet error is observed */
@@ -282,29 +282,29 @@ static void intel_dsi_clear_device_ready(struct 
intel_encoder *encoder)
  {
        struct drm_i915_private *dev_priv = encoder->base.dev->dev_private;
        struct intel_crtc *intel_crtc = to_intel_crtc(encoder->base.crtc);
-       int pipe = intel_crtc->pipe;
+       enum port port = intel_dsi_pipe_to_port(intel_crtc->pipe);
        u32 val;
DRM_DEBUG_KMS("\n"); - I915_WRITE(MIPI_DEVICE_READY(pipe), DEVICE_READY | ULPS_STATE_ENTER);
+       I915_WRITE(MIPI_DEVICE_READY(port), DEVICE_READY | ULPS_STATE_ENTER);
        usleep_range(2000, 2500);
- I915_WRITE(MIPI_DEVICE_READY(pipe), DEVICE_READY | ULPS_STATE_EXIT);
+       I915_WRITE(MIPI_DEVICE_READY(port), DEVICE_READY | ULPS_STATE_EXIT);
        usleep_range(2000, 2500);
- I915_WRITE(MIPI_DEVICE_READY(pipe), DEVICE_READY | ULPS_STATE_ENTER);
+       I915_WRITE(MIPI_DEVICE_READY(port), DEVICE_READY | ULPS_STATE_ENTER);
        usleep_range(2000, 2500);
- if (wait_for(((I915_READ(MIPI_PORT_CTRL(pipe)) & AFE_LATCHOUT)
+       if (wait_for(((I915_READ(MIPI_PORT_CTRL(port)) & AFE_LATCHOUT)
                      == 0x00000), 30))
                DRM_ERROR("DSI LP not going Low\n");
- val = I915_READ(MIPI_PORT_CTRL(pipe));
-       I915_WRITE(MIPI_PORT_CTRL(pipe), val & ~LP_OUTPUT_HOLD);
+       val = I915_READ(MIPI_PORT_CTRL(port));
+       I915_WRITE(MIPI_PORT_CTRL(port), val & ~LP_OUTPUT_HOLD);
        usleep_range(1000, 1500);
- I915_WRITE(MIPI_DEVICE_READY(pipe), 0x00);
+       I915_WRITE(MIPI_DEVICE_READY(port), 0x00);
        usleep_range(2000, 2500);
vlv_disable_dsi_pll(encoder);
@@ -338,8 +338,8 @@ static bool intel_dsi_get_hw_state(struct intel_encoder 
*encoder,
  {
        struct drm_i915_private *dev_priv = encoder->base.dev->dev_private;
        enum intel_display_power_domain power_domain;
-       u32 port, func;
-       enum pipe p;
+       u32 port_ctl, func;
+       enum port port;
DRM_DEBUG_KMS("\n"); @@ -348,13 +348,13 @@ static bool intel_dsi_get_hw_state(struct intel_encoder *encoder,
                return false;
/* XXX: this only works for one DSI output */
-       for (p = PIPE_A; p <= PIPE_B; p++) {
-               port = I915_READ(MIPI_PORT_CTRL(p));
-               func = I915_READ(MIPI_DSI_FUNC_PRG(p));
+       for_each_dsi_port(port, (1 << PORT_A) | (1 << PORT_C)) {
+               port_ctl = I915_READ(MIPI_PORT_CTRL(port));
+               func = I915_READ(MIPI_DSI_FUNC_PRG(port));
- if ((port & DPI_ENABLE) || (func & CMD_MODE_DATA_WIDTH_MASK)) {
-                       if (I915_READ(MIPI_DEVICE_READY(p)) & DEVICE_READY) {
-                               *pipe = p;
+               if ((port_ctl & DPI_ENABLE) || (func & 
CMD_MODE_DATA_WIDTH_MASK)) {
+                       if (I915_READ(MIPI_DEVICE_READY(port)) & DEVICE_READY) {
+                               *pipe = port == PORT_A ? PIPE_A : PIPE_C;
                                return true;
                        }
                }
@@ -437,7 +437,7 @@ static void set_dsi_timings(struct drm_encoder *encoder,
        struct drm_i915_private *dev_priv = dev->dev_private;
        struct intel_crtc *intel_crtc = to_intel_crtc(encoder->crtc);
        struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder);
-       int pipe = intel_crtc->pipe;
+       enum port port = intel_dsi_pipe_to_port(intel_crtc->pipe);
        unsigned int bpp = intel_crtc->config.pipe_bpp;
        unsigned int lane_count = intel_dsi->lane_count;
@@ -460,18 +460,18 @@ static void set_dsi_timings(struct drm_encoder *encoder,
                            intel_dsi->burst_mode_ratio);
        hbp = txbyteclkhs(hbp, bpp, lane_count, intel_dsi->burst_mode_ratio);
- I915_WRITE(MIPI_HACTIVE_AREA_COUNT(pipe), hactive);
-       I915_WRITE(MIPI_HFP_COUNT(pipe), hfp);
+       I915_WRITE(MIPI_HACTIVE_AREA_COUNT(port), hactive);
+       I915_WRITE(MIPI_HFP_COUNT(port), hfp);
/* meaningful for video mode non-burst sync pulse mode only, can be zero
         * for non-burst sync events and burst modes */
-       I915_WRITE(MIPI_HSYNC_PADDING_COUNT(pipe), hsync);
-       I915_WRITE(MIPI_HBP_COUNT(pipe), hbp);
+       I915_WRITE(MIPI_HSYNC_PADDING_COUNT(port), hsync);
+       I915_WRITE(MIPI_HBP_COUNT(port), hbp);
/* vertical values are in terms of lines */
-       I915_WRITE(MIPI_VFP_COUNT(pipe), vfp);
-       I915_WRITE(MIPI_VSYNC_PADDING_COUNT(pipe), vsync);
-       I915_WRITE(MIPI_VBP_COUNT(pipe), vbp);
+       I915_WRITE(MIPI_VFP_COUNT(port), vfp);
+       I915_WRITE(MIPI_VSYNC_PADDING_COUNT(port), vsync);
+       I915_WRITE(MIPI_VBP_COUNT(port), vbp);
  }
static void intel_dsi_prepare(struct intel_encoder *intel_encoder)
@@ -483,30 +483,30 @@ static void intel_dsi_prepare(struct intel_encoder 
*intel_encoder)
        struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder);
        struct drm_display_mode *adjusted_mode =
                &intel_crtc->config.adjusted_mode;
-       int pipe = intel_crtc->pipe;
+       enum port port = intel_dsi_pipe_to_port(intel_crtc->pipe);
        unsigned int bpp = intel_crtc->config.pipe_bpp;
        u32 val, tmp;
- DRM_DEBUG_KMS("pipe %c\n", pipe_name(pipe));
+       DRM_DEBUG_KMS("pipe %c\n", pipe_name(intel_crtc->pipe));
/* escape clock divider, 20MHz, shared for A and C. device ready must be
         * off when doing this! txclkesc? */
-       tmp = I915_READ(MIPI_CTRL(0));
+       tmp = I915_READ(MIPI_CTRL(PORT_A));
        tmp &= ~ESCAPE_CLOCK_DIVIDER_MASK;
-       I915_WRITE(MIPI_CTRL(0), tmp | ESCAPE_CLOCK_DIVIDER_1);
+       I915_WRITE(MIPI_CTRL(PORT_A), tmp | ESCAPE_CLOCK_DIVIDER_1);
/* read request priority is per pipe */
-       tmp = I915_READ(MIPI_CTRL(pipe));
+       tmp = I915_READ(MIPI_CTRL(port));
        tmp &= ~READ_REQUEST_PRIORITY_MASK;
-       I915_WRITE(MIPI_CTRL(pipe), tmp | READ_REQUEST_PRIORITY_HIGH);
+       I915_WRITE(MIPI_CTRL(port), tmp | READ_REQUEST_PRIORITY_HIGH);
/* XXX: why here, why like this? handling in irq handler?! */
-       I915_WRITE(MIPI_INTR_STAT(pipe), 0xffffffff);
-       I915_WRITE(MIPI_INTR_EN(pipe), 0xffffffff);
+       I915_WRITE(MIPI_INTR_STAT(port), 0xffffffff);
+       I915_WRITE(MIPI_INTR_EN(port), 0xffffffff);
- I915_WRITE(MIPI_DPHY_PARAM(pipe), intel_dsi->dphy_reg);
+       I915_WRITE(MIPI_DPHY_PARAM(port), intel_dsi->dphy_reg);
- I915_WRITE(MIPI_DPI_RESOLUTION(pipe),
+       I915_WRITE(MIPI_DPI_RESOLUTION(port),
                   adjusted_mode->vdisplay << VERTICAL_ADDRESS_SHIFT |
                   adjusted_mode->hdisplay << HORIZONTAL_ADDRESS_SHIFT);
@@ -522,7 +522,7 @@ static void intel_dsi_prepare(struct intel_encoder *intel_encoder)
                /* XXX: cross-check bpp vs. pixel format? */
                val |= intel_dsi->pixel_format;
        }
-       I915_WRITE(MIPI_DSI_FUNC_PRG(pipe), val);
+       I915_WRITE(MIPI_DSI_FUNC_PRG(port), val);
/* timeouts for recovery. one frame IIUC. if counter expires, EOT and
         * stop state. */
@@ -543,25 +543,25 @@ static void intel_dsi_prepare(struct intel_encoder 
*intel_encoder)
if (is_vid_mode(intel_dsi) &&
            intel_dsi->video_mode_format == VIDEO_MODE_BURST) {
-               I915_WRITE(MIPI_HS_TX_TIMEOUT(pipe),
+               I915_WRITE(MIPI_HS_TX_TIMEOUT(port),
                           txbyteclkhs(adjusted_mode->htotal, bpp,
                                       intel_dsi->lane_count,
                                       intel_dsi->burst_mode_ratio) + 1);
        } else {
-               I915_WRITE(MIPI_HS_TX_TIMEOUT(pipe),
+               I915_WRITE(MIPI_HS_TX_TIMEOUT(port),
                           txbyteclkhs(adjusted_mode->vtotal *
                                       adjusted_mode->htotal,
                                       bpp, intel_dsi->lane_count,
                                       intel_dsi->burst_mode_ratio) + 1);
        }
-       I915_WRITE(MIPI_LP_RX_TIMEOUT(pipe), intel_dsi->lp_rx_timeout);
-       I915_WRITE(MIPI_TURN_AROUND_TIMEOUT(pipe), intel_dsi->turn_arnd_val);
-       I915_WRITE(MIPI_DEVICE_RESET_TIMER(pipe), intel_dsi->rst_timer_val);
+       I915_WRITE(MIPI_LP_RX_TIMEOUT(port), intel_dsi->lp_rx_timeout);
+       I915_WRITE(MIPI_TURN_AROUND_TIMEOUT(port), intel_dsi->turn_arnd_val);
+       I915_WRITE(MIPI_DEVICE_RESET_TIMER(port), intel_dsi->rst_timer_val);
/* dphy stuff */ /* in terms of low power clock */
-       I915_WRITE(MIPI_INIT_COUNT(pipe), txclkesc(intel_dsi->escape_clk_div, 
100));
+       I915_WRITE(MIPI_INIT_COUNT(port), txclkesc(intel_dsi->escape_clk_div, 
100));
val = 0;
        if (intel_dsi->eotp_pkt == 0)
@@ -571,17 +571,17 @@ static void intel_dsi_prepare(struct intel_encoder 
*intel_encoder)
                val |= CLOCKSTOP;
/* recovery disables */
-       I915_WRITE(MIPI_EOT_DISABLE(pipe), val);
+       I915_WRITE(MIPI_EOT_DISABLE(port), val);
/* in terms of low power clock */
-       I915_WRITE(MIPI_INIT_COUNT(pipe), intel_dsi->init_count);
+       I915_WRITE(MIPI_INIT_COUNT(port), intel_dsi->init_count);
/* in terms of txbyteclkhs. actual high to low switch +
         * MIPI_STOP_STATE_STALL * MIPI_LP_BYTECLK.
         *
         * XXX: write MIPI_STOP_STATE_STALL?
         */
-       I915_WRITE(MIPI_HIGH_LOW_SWITCH_COUNT(pipe),
+       I915_WRITE(MIPI_HIGH_LOW_SWITCH_COUNT(port),
                   intel_dsi->hs_to_lp_count);
/* XXX: low power clock equivalence in terms of byte clock. the number
@@ -589,16 +589,16 @@ static void intel_dsi_prepare(struct intel_encoder 
*intel_encoder)
         * and txclkesc. txclkesc time / txbyteclk time * (105 +
         * MIPI_STOP_STATE_STALL) / 105.???
         */
-       I915_WRITE(MIPI_LP_BYTECLK(pipe), intel_dsi->lp_byte_clk);
+       I915_WRITE(MIPI_LP_BYTECLK(port), intel_dsi->lp_byte_clk);
/* the bw essential for transmitting 16 long packets containing 252
         * bytes meant for dcs write memory command is programmed in this
         * register in terms of byte clocks. based on dsi transfer rate and the
         * number of lanes configured the time taken to transmit 16 long packets
         * in a dsi stream varies. */
-       I915_WRITE(MIPI_DBI_BW_CTRL(pipe), intel_dsi->bw_timer);
+       I915_WRITE(MIPI_DBI_BW_CTRL(port), intel_dsi->bw_timer);
- I915_WRITE(MIPI_CLK_LANE_SWITCH_TIME_CNT(pipe),
+       I915_WRITE(MIPI_CLK_LANE_SWITCH_TIME_CNT(port),
                   intel_dsi->clk_lp_to_hs_count << LP_HS_SSW_CNT_SHIFT |
                   intel_dsi->clk_hs_to_lp_count << HS_LP_PWR_SW_CNT_SHIFT);
@@ -606,7 +606,7 @@ static void intel_dsi_prepare(struct intel_encoder *intel_encoder)
                /* Some panels might have resolution which is not a multiple of
                 * 64 like 1366 x 768. Enable RANDOM resolution support for such
                 * panels by default */
-               I915_WRITE(MIPI_VIDEO_MODE_FORMAT(pipe),
+               I915_WRITE(MIPI_VIDEO_MODE_FORMAT(port),
                           intel_dsi->video_frmt_cfg_bits |
                           intel_dsi->video_mode_format |
                           IP_TG_CONFIG |
@@ -748,6 +748,12 @@ void intel_dsi_init(struct drm_device *dev)
        intel_connector->get_hw_state = intel_connector_get_hw_state;
        intel_connector->unregister = intel_connector_unregister;
+ /* Pipe A maps to MIPI DSI port A, pipe B maps to MIPI DSI port C */
+       if (dev_priv->vbt.dsi.port == DVO_PORT_MIPIA)
+               intel_encoder->crtc_mask = (1 << PIPE_A);
+       else if (dev_priv->vbt.dsi.port == DVO_PORT_MIPIC)
+               intel_encoder->crtc_mask = (1 << PIPE_B);
+
        for (i = 0; i < ARRAY_SIZE(intel_dsi_devices); i++) {
                dsi = &intel_dsi_devices[i];
                intel_dsi->dev = *dsi;
@@ -762,8 +768,6 @@ void intel_dsi_init(struct drm_device *dev)
        }
intel_encoder->type = INTEL_OUTPUT_DSI;
-       intel_encoder->crtc_mask = (1 << 0); /* XXX */
-
        intel_encoder->cloneable = 0;
        drm_connector_init(dev, connector, &intel_dsi_connector_funcs,
                           DRM_MODE_CONNECTOR_DSI);
diff --git a/drivers/gpu/drm/i915/intel_dsi.h b/drivers/gpu/drm/i915/intel_dsi.h
index 657eb5c1b9d8..97a6f621774f 100644
--- a/drivers/gpu/drm/i915/intel_dsi.h
+++ b/drivers/gpu/drm/i915/intel_dsi.h
@@ -127,6 +127,22 @@ struct intel_dsi {
        u16 panel_pwr_cycle_delay;
  };
+/* XXX: Transitional before dual port configuration */
+static inline enum port intel_dsi_pipe_to_port(enum pipe pipe)
+{
+       if (pipe == PIPE_A)
+               return PORT_A;
+       else if (pipe == PIPE_B)
+               return PORT_C;
+
+       WARN(1, "DSI on pipe %c, assuming port C\n", pipe_name(pipe));
+       return PORT_C;
+}
+
+#define for_each_dsi_port(__port, __ports_mask) \
+       for ((__port) = PORT_A; (__port) < I915_MAX_PORTS; (__port)++)       \
+               if ((__ports_mask) & (1 << (__port)))
+
  static inline struct intel_dsi *enc_to_intel_dsi(struct drm_encoder *encoder)
  {
        return container_of(encoder, struct intel_dsi, base.base);
diff --git a/drivers/gpu/drm/i915/intel_dsi_cmd.c 
b/drivers/gpu/drm/i915/intel_dsi_cmd.c
index f4767fd2ebeb..004fa918ca03 100644
--- a/drivers/gpu/drm/i915/intel_dsi_cmd.c
+++ b/drivers/gpu/drm/i915/intel_dsi_cmd.c
@@ -54,15 +54,15 @@ static void print_stat(struct intel_dsi *intel_dsi)
        struct drm_device *dev = encoder->dev;
        struct drm_i915_private *dev_priv = dev->dev_private;
        struct intel_crtc *intel_crtc = to_intel_crtc(encoder->crtc);
-       enum pipe pipe = intel_crtc->pipe;
+       enum port port = intel_dsi_pipe_to_port(intel_crtc->pipe);
        u32 val;
- val = I915_READ(MIPI_INTR_STAT(pipe));
+       val = I915_READ(MIPI_INTR_STAT(port));
#define STAT_BIT(val, bit) (val) & (bit) ? " " #bit : ""
-       DRM_DEBUG_KMS("MIPI_INTR_STAT(%d) = %08x"
+       DRM_DEBUG_KMS("MIPI_INTR_STAT(%c) = %08x"
                      
"%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s"
-                     "\n", pipe, val,
+                     "\n", port_name(port), val,
                      STAT_BIT(val, TEARING_EFFECT),
                      STAT_BIT(val, SPL_PKT_SENT_INTERRUPT),
                      STAT_BIT(val, GEN_READ_DATA_AVAIL),
@@ -110,16 +110,16 @@ void dsi_hs_mode_enable(struct intel_dsi *intel_dsi, bool 
enable)
        struct drm_device *dev = encoder->dev;
        struct drm_i915_private *dev_priv = dev->dev_private;
        struct intel_crtc *intel_crtc = to_intel_crtc(encoder->crtc);
-       enum pipe pipe = intel_crtc->pipe;
+       enum port port = intel_dsi_pipe_to_port(intel_crtc->pipe);
        u32 temp;
        u32 mask = DBI_FIFO_EMPTY;
- if (wait_for((I915_READ(MIPI_GEN_FIFO_STAT(pipe)) & mask) == mask, 50))
+       if (wait_for((I915_READ(MIPI_GEN_FIFO_STAT(port)) & mask) == mask, 50))
                DRM_ERROR("Timeout waiting for DBI FIFO empty\n");
- temp = I915_READ(MIPI_HS_LP_DBI_ENABLE(pipe));
+       temp = I915_READ(MIPI_HS_LP_DBI_ENABLE(port));
        temp &= DBI_HS_LP_MODE_MASK;
-       I915_WRITE(MIPI_HS_LP_DBI_ENABLE(pipe), enable ? DBI_HS_MODE : 
DBI_LP_MODE);
+       I915_WRITE(MIPI_HS_LP_DBI_ENABLE(port), enable ? DBI_HS_MODE : 
DBI_LP_MODE);
intel_dsi->hs = enable;
  }
@@ -131,7 +131,7 @@ static int dsi_vc_send_short(struct intel_dsi *intel_dsi, 
int channel,
        struct drm_device *dev = encoder->dev;
        struct drm_i915_private *dev_priv = dev->dev_private;
        struct intel_crtc *intel_crtc = to_intel_crtc(encoder->crtc);
-       enum pipe pipe = intel_crtc->pipe;
+       enum port port = intel_dsi_pipe_to_port(intel_crtc->pipe);
        u32 ctrl_reg;
        u32 ctrl;
        u32 mask;
@@ -140,14 +140,14 @@ static int dsi_vc_send_short(struct intel_dsi *intel_dsi, 
int channel,
                      channel, data_type, data);
if (intel_dsi->hs) {
-               ctrl_reg = MIPI_HS_GEN_CTRL(pipe);
+               ctrl_reg = MIPI_HS_GEN_CTRL(port);
                mask = HS_CTRL_FIFO_FULL;
        } else {
-               ctrl_reg = MIPI_LP_GEN_CTRL(pipe);
+               ctrl_reg = MIPI_LP_GEN_CTRL(port);
                mask = LP_CTRL_FIFO_FULL;
        }
- if (wait_for((I915_READ(MIPI_GEN_FIFO_STAT(pipe)) & mask) == 0, 50)) {
+       if (wait_for((I915_READ(MIPI_GEN_FIFO_STAT(port)) & mask) == 0, 50)) {
                DRM_ERROR("Timeout waiting for HS/LP CTRL FIFO !full\n");
                print_stat(intel_dsi);
        }
@@ -173,7 +173,7 @@ static int dsi_vc_send_long(struct intel_dsi *intel_dsi, 
int channel,
        struct drm_device *dev = encoder->dev;
        struct drm_i915_private *dev_priv = dev->dev_private;
        struct intel_crtc *intel_crtc = to_intel_crtc(encoder->crtc);
-       enum pipe pipe = intel_crtc->pipe;
+       enum port port = intel_dsi_pipe_to_port(intel_crtc->pipe);
        u32 data_reg;
        int i, j, n;
        u32 mask;
@@ -182,14 +182,14 @@ static int dsi_vc_send_long(struct intel_dsi *intel_dsi, 
int channel,
                      channel, data_type, len);
if (intel_dsi->hs) {
-               data_reg = MIPI_HS_GEN_DATA(pipe);
+               data_reg = MIPI_HS_GEN_DATA(port);
                mask = HS_DATA_FIFO_FULL;
        } else {
-               data_reg = MIPI_LP_GEN_DATA(pipe);
+               data_reg = MIPI_LP_GEN_DATA(port);
                mask = LP_DATA_FIFO_FULL;
        }
- if (wait_for((I915_READ(MIPI_GEN_FIFO_STAT(pipe)) & mask) == 0, 50))
+       if (wait_for((I915_READ(MIPI_GEN_FIFO_STAT(port)) & mask) == 0, 50))
                DRM_ERROR("Timeout waiting for HS/LP DATA FIFO !full\n");
for (i = 0; i < len; i += n) {
@@ -292,14 +292,14 @@ static int dsi_read_data_return(struct intel_dsi 
*intel_dsi,
        struct drm_device *dev = encoder->dev;
        struct drm_i915_private *dev_priv = dev->dev_private;
        struct intel_crtc *intel_crtc = to_intel_crtc(encoder->crtc);
-       enum pipe pipe = intel_crtc->pipe;
+       enum port port = intel_dsi_pipe_to_port(intel_crtc->pipe);
        int i, len = 0;
        u32 data_reg, val;
if (intel_dsi->hs) {
-               data_reg = MIPI_HS_GEN_DATA(pipe);
+               data_reg = MIPI_HS_GEN_DATA(port);
        } else {
-               data_reg = MIPI_LP_GEN_DATA(pipe);
+               data_reg = MIPI_LP_GEN_DATA(port);
        }
while (len < buflen) {
@@ -318,7 +318,7 @@ int dsi_vc_dcs_read(struct intel_dsi *intel_dsi, int 
channel, u8 dcs_cmd,
        struct drm_device *dev = encoder->dev;
        struct drm_i915_private *dev_priv = dev->dev_private;
        struct intel_crtc *intel_crtc = to_intel_crtc(encoder->crtc);
-       enum pipe pipe = intel_crtc->pipe;
+       enum port port = intel_dsi_pipe_to_port(intel_crtc->pipe);
        u32 mask;
        int ret;
@@ -327,14 +327,14 @@ int dsi_vc_dcs_read(struct intel_dsi *intel_dsi, int channel, u8 dcs_cmd,
         * longer than MIPI_MAX_RETURN_PKT_SIZE
         */
- I915_WRITE(MIPI_INTR_STAT(pipe), GEN_READ_DATA_AVAIL);
+       I915_WRITE(MIPI_INTR_STAT(port), GEN_READ_DATA_AVAIL);
ret = dsi_vc_dcs_send_read_request(intel_dsi, channel, dcs_cmd);
        if (ret)
                return ret;
mask = GEN_READ_DATA_AVAIL;
-       if (wait_for((I915_READ(MIPI_INTR_STAT(pipe)) & mask) == mask, 50))
+       if (wait_for((I915_READ(MIPI_INTR_STAT(port)) & mask) == mask, 50))
                DRM_ERROR("Timeout waiting for read data.\n");
ret = dsi_read_data_return(intel_dsi, buf, buflen);
@@ -354,7 +354,7 @@ int dsi_vc_generic_read(struct intel_dsi *intel_dsi, int 
channel,
        struct drm_device *dev = encoder->dev;
        struct drm_i915_private *dev_priv = dev->dev_private;
        struct intel_crtc *intel_crtc = to_intel_crtc(encoder->crtc);
-       enum pipe pipe = intel_crtc->pipe;
+       enum port port = intel_dsi_pipe_to_port(intel_crtc->pipe);
        u32 mask;
        int ret;
@@ -363,7 +363,7 @@ int dsi_vc_generic_read(struct intel_dsi *intel_dsi, int channel,
         * longer than MIPI_MAX_RETURN_PKT_SIZE
         */
- I915_WRITE(MIPI_INTR_STAT(pipe), GEN_READ_DATA_AVAIL);
+       I915_WRITE(MIPI_INTR_STAT(port), GEN_READ_DATA_AVAIL);
ret = dsi_vc_generic_send_read_request(intel_dsi, channel, reqdata,
                                               reqlen);
@@ -371,7 +371,7 @@ int dsi_vc_generic_read(struct intel_dsi *intel_dsi, int 
channel,
                return ret;
mask = GEN_READ_DATA_AVAIL;
-       if (wait_for((I915_READ(MIPI_INTR_STAT(pipe)) & mask) == mask, 50))
+       if (wait_for((I915_READ(MIPI_INTR_STAT(port)) & mask) == mask, 50))
                DRM_ERROR("Timeout waiting for read data.\n");
ret = dsi_read_data_return(intel_dsi, buf, buflen);
@@ -395,7 +395,7 @@ int dpi_send_cmd(struct intel_dsi *intel_dsi, u32 cmd, bool 
hs)
        struct drm_device *dev = encoder->dev;
        struct drm_i915_private *dev_priv = dev->dev_private;
        struct intel_crtc *intel_crtc = to_intel_crtc(encoder->crtc);
-       enum pipe pipe = intel_crtc->pipe;
+       enum port port = intel_dsi_pipe_to_port(intel_crtc->pipe);
        u32 mask;
/* XXX: pipe, hs */
@@ -405,16 +405,16 @@ int dpi_send_cmd(struct intel_dsi *intel_dsi, u32 cmd, 
bool hs)
                cmd |= DPI_LP_MODE;
/* clear bit */
-       I915_WRITE(MIPI_INTR_STAT(pipe), SPL_PKT_SENT_INTERRUPT);
+       I915_WRITE(MIPI_INTR_STAT(port), SPL_PKT_SENT_INTERRUPT);
/* XXX: old code skips write if control unchanged */
-       if (cmd == I915_READ(MIPI_DPI_CONTROL(pipe)))
+       if (cmd == I915_READ(MIPI_DPI_CONTROL(port)))
                DRM_ERROR("Same special packet %02x twice in a row.\n", cmd);
- I915_WRITE(MIPI_DPI_CONTROL(pipe), cmd);
+       I915_WRITE(MIPI_DPI_CONTROL(port), cmd);
mask = SPL_PKT_SENT_INTERRUPT;
-       if (wait_for((I915_READ(MIPI_INTR_STAT(pipe)) & mask) == mask, 100))
+       if (wait_for((I915_READ(MIPI_INTR_STAT(port)) & mask) == mask, 100))
                DRM_ERROR("Video mode command 0x%08x send failed.\n", cmd);
return 0;
@@ -426,12 +426,12 @@ void wait_for_dsi_fifo_empty(struct intel_dsi *intel_dsi)
        struct drm_device *dev = encoder->dev;
        struct drm_i915_private *dev_priv = dev->dev_private;
        struct intel_crtc *intel_crtc = to_intel_crtc(encoder->crtc);
-       enum pipe pipe = intel_crtc->pipe;
+       enum port port = intel_dsi_pipe_to_port(intel_crtc->pipe);
        u32 mask;
mask = LP_CTRL_FIFO_EMPTY | HS_CTRL_FIFO_EMPTY |
                LP_DATA_FIFO_EMPTY | HS_DATA_FIFO_EMPTY;
- if (wait_for((I915_READ(MIPI_GEN_FIFO_STAT(pipe)) & mask) == mask, 100))
+       if (wait_for((I915_READ(MIPI_GEN_FIFO_STAT(port)) & mask) == mask, 100))
                DRM_ERROR("DPI FIFOs are not empty\n");
  }

This patch has some style issues.  Please address them.

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