drm/i915/icl: Define TRANS_DDI_FUNC_CTL DSI registers

This patch defines TRANS_DDI_FUNC_CTL and TRANS_DDI_FUNC_CTL2
registers and their bitfields for DSI. These registers are used
for enabling port sync mode, input pipe select, data lane width
configuration etc.

v2: Changes:
    - Remove redundant extra line
    - Correct some of bitfield definition

v3 by Jani:
 - Move DSI transcoder offsets to GEN11_FEATURES

Signed-off-by: Madhav Chauhan <madhav.chauhan@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/6b2d87db82660320be10e423742cbf5a31e18037.1539613303.git.jani.nikula@intel.com

diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
index 0a05cc7..b86b735 100644 (file)
--- a/drivers/gpu/drm/i915/i915_pci.c
+++ b/drivers/gpu/drm/i915/i915_pci.c
@@ -595,6 +595,9 @@ static const struct intel_device_info intel_cannonlake_info = {
 
 #define GEN11_FEATURES \
        GEN10_FEATURES, \
+       .trans_offsets = { TRANSCODER_A_OFFSET, TRANSCODER_B_OFFSET, \
+                          TRANSCODER_C_OFFSET, TRANSCODER_EDP_OFFSET, \
+                          TRANSCODER_DSI0_OFFSET, TRANSCODER_DSI1_OFFSET}, \
        GEN(11), \
        .ddb_size = 2048, \
        .has_logical_ring_elsq = 1

diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 598e631..9d4961c 100644 (file)
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -4028,6 +4028,8 @@ enum {
 #define TRANSCODER_C_OFFSET 0x62000
 #define CHV_TRANSCODER_C_OFFSET 0x63000
 #define TRANSCODER_EDP_OFFSET 0x6f000
+#define TRANSCODER_DSI0_OFFSET 0x6b000
+#define TRANSCODER_DSI1_OFFSET 0x6b800
 
 #define _MMIO_TRANS2(pipe, reg) _MMIO(dev_priv->info.trans_offsets[(pipe)] - \
        dev_priv->info.trans_offsets[TRANSCODER_A] + (reg) + \
@@ -8992,6 +8994,8 @@ enum skl_power_gate {
 #define _TRANS_DDI_FUNC_CTL_B          0x61400
 #define _TRANS_DDI_FUNC_CTL_C          0x62400
 #define _TRANS_DDI_FUNC_CTL_EDP                0x6F400
+#define _TRANS_DDI_FUNC_CTL_DSI0       0x6b400
+#define _TRANS_DDI_FUNC_CTL_DSI1       0x6bc00
 #define TRANS_DDI_FUNC_CTL(tran) _MMIO_TRANS2(tran, _TRANS_DDI_FUNC_CTL_A)
 
 #define  TRANS_DDI_FUNC_ENABLE         (1 << 31)
@@ -9029,6 +9033,19 @@ enum skl_power_gate {
                                        | TRANS_DDI_HDMI_SCRAMBLER_RESET_FREQ \
                                        | TRANS_DDI_HDMI_SCRAMBLING)
 
+#define _TRANS_DDI_FUNC_CTL2_A         0x60404
+#define _TRANS_DDI_FUNC_CTL2_B         0x61404
+#define _TRANS_DDI_FUNC_CTL2_C         0x62404
+#define _TRANS_DDI_FUNC_CTL2_EDP       0x6f404
+#define _TRANS_DDI_FUNC_CTL2_DSI0      0x6b404
+#define _TRANS_DDI_FUNC_CTL2_DSI1      0x6bc04
+#define TRANS_DDI_FUNC_CTL2(tran)      _MMIO_TRANS2(tran, \
+                                                    _TRANS_DDI_FUNC_CTL2_A)
+#define  PORT_SYNC_MODE_ENABLE                 (1 << 4)
+#define  PORT_SYNC_MODE_MASTER_SELECT(x)       ((x) < 0)
+#define  PORT_SYNC_MODE_MASTER_SELECT_MASK     (0x7 << 0)
+#define  PORT_SYNC_MODE_MASTER_SELECT_SHIFT    0
+
 /* DisplayPort Transport Control */
 #define _DP_TP_CTL_A                   0x64040
 #define _DP_TP_CTL_B                   0x64140